Aparicio Bengoechea, Angel Carlos
Total activity: 278
Research group
TE - Structural Technology
Department
Department of Construction Engineering
School
Barcelona School of Civil Engineering (ETSECCPB)
E-mail
angel.carlos.aparicioupc.edu
Contact details
UPC directory Open in new window

Graphic summary
  • Show / hide key
  • Information


Scientific and technological production
  •  

1 to 50 of 278 results
  • Shear-off strength of compact reinforcement splicing for improved construction of in situ concrete structures

     Diaz de Terán, Jose Ramon; Turmo Coderque, Jose; Jorquera Lucerga, Juan Jose; Barragán, Bryan E.; Ramos Schneider, Gonzalo; Aparicio Bengoechea, Angel Carlos
    Construction & building materials
    Date of publication: 2013-10
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Construction process of span-by-span in situ concrete decks built with travelling scaffolding is being modified in order to shorten the time of completion. In order to do so, compact splicing between cast phases is needed to enable the movement of internal formworks. As this reinforcement detailing is not covered by standards, this paper presents an original experimental research program evaluating the structural behavior of such construction joints under shear stresses. To evaluate the robustness of such planes between phases, shear strength has been evaluated under two conditions, flexurally uncracked and flexurally cracked joints. This last test series aims to evaluate the possible deleterious effects of transverse bending moments. Material has been also taken as a variable, testing normal strength concrete, self compacting concrete and high strength concrete. Results show the reliability of this unconventional splices as well as their strength.

  • New structural joint by rebar looping applied to segmental bridge construction: fatigue strength tests

     Villalba Herrero, Sergio; Casas Rius, Joan Ramon; Aparicio Bengoechea, Angel Carlos; Villalba Herrero, Vicente
    ASCE. Journal of bridge engineering
    Date of publication: 2013-11
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The objective of this research has been to design, develop, and evaluate experimentally a modified type of construction joint of limited length between concrete slab segments. The design concept is based on an anchorage hook of reduced development length stiffened by transverse reinforcement bars. The purpose of this paper is to investigate the mechanical behavior of the joint in terms of stiffness and strength for an application that requires high durability, which often leads to serviceability problems such as cracking and water leakage at transverse joints. This can regularly appear in bridges. Additionally, bridge decks are structures that are subjected to repeated loading such as traffic loads, making it necessary to evaluate the behavior of joints under fatigue load. Therefore, studies focusing on the strength, stiffness, and serviceability of the joints must be carried out. This paper investigates experimentally the fatigue behavior and strength of loop joints with regard to the loop bar diameter, loop joint width, and applied load ranges. These results were compared with the behavior of RC slabs without joints. A total of eight slabs were fabricated for fatigue loading tests, and the failures of the different specimens (with loop joints and without) were obtained. From the test results, the mechanical behavior of the slabs with loop joints was confirmed to be similar to that of the slabs without joints. The experimental loop joint design was found to perform correctly under fatigue loads.

  • Optimization of in situ construction of concrete decks: Flexure tests of compact splices of reinforcement between phases

     Díaz de Terán, José Ramón; Turmo Coderque, Jose; Jorquera, Juan José; Barragan, Bryan Erick; Ramos Schneider, Gonzalo; Aparicio Bengoechea, Angel Carlos
    Construction & building materials
    Date of publication: 2013-04
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • State-of-the-art of spatial arch bridges

     Sarmientos Comesias, Marta; Ruiz Terán, Ana Maria; Aparicio Bengoechea, Angel Carlos
    Proceedings of the Institution of Civil Engineers. Bridge engineering
    Date of publication: 2013-04
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The paper describes a new form of bridge called a spatial arch bridge. This bridge type was developed in response to the demand for landmark structures, which have started to appear in the modern urban landscape to provide a symbol of originality, innovation and progress. Spatial arch bridges are defined as bridges in which the vertical deck loads produce bending moments and shear forces not contained in the arch plane, owing to their geometrical and structural configuration. Moreover, the arch itself may not be contained in a plane. The different variables and geometries that create such a structural configuration have been studied and classified. A wide compilation of examples of this bridge type has been made in chronological order, according to their construction date, from Maillart's first concrete spatial arch bridges to the latest designs and materials.

  • Costruction Control of Cable-Stayed Bridges

     Lozano Galant, Jose Antonio
    Defense's date: 2013-07-22
    Universitat Politècnica de Catalunya
    Theses

     Share Reference managers Reference managers Open in new window

  • Construction engineering of the Madrid-Barcelona-French Border high speed railway viaduct over river Fluvià

     Polo Orodea, Tomás; Ramos Moreno, Caterina; Aparicio Bengoechea, Angel Carlos; Ramos Schneider, Gonzalo
    International Conference on Railway Technology: Research, Development and Maintenance
    Presentation's date: 2012-04
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    This article introduces the static scheme, the construction method and the seismic-resistant designing of the Fluvià Viaduct, which has a total length of 835m (45+10x60+2x70+50m) and an average height of 18m. So, it is the longest viaduct in the Barcelona-Madrid-French Border section between Barcelona and France. The spans of this structure are medium-long for prestressed concrete solutions in Spain. The general concept of the structure is a 14 span continuous post-tensioning prestressed concrete main girder, simply supported in piers and abutments, with a useful width of 14m. The main girder cross-section is a 4.0m depth one-cell box with quasi-vertical webs, which results in an close-to-optimum length to depth ratio of L/15 for the typical spans. In piers P-11; P-12 and P-13 depth grows linearly up to 5.5m in order to adapt properly to the bending moments appearing in longer spans. The main girder is prestressed to one of the abutments, which acts as fixed point of the structure for supporting horizontal longitudinal actions like traction-braking forces and earthquake loads. With a fixed end in one abutment, the viaduct has a total expanding length of 835m, which is far from the maximum expansion length reached in others structures in Spain, but nearly close to the recommended maximum length that can be solved with conventional track devices. Earthquake loads are the limiting factor in the design of most of the elements of the substructure (foundations, piers and abutments, and diaphragms). The construction method for the piers and the abutments is the most common for this sort of structural parts, and the greatest engineering effort is done to design the girder for a span-by-span construction with a self-bearing falsework designed initially for road bridges of 50m of maximum spans. The use of this available self-bearing falsework for the construction of a railway viaduct (with a cross-section heavier than a highway cross-section for the same span length) deals directly with most of the limitations that influenced the design and construction of the girder. It was necessary to limit the load on the falsework girders to an allowable limit, that prevented from casting the whole cross-section at once. Constructionengineering of the Madrid-Barcelona-French Border high speed railway viaductover river Fluvià. So every phase of the sequential construction method (every “span”) has two sub-phases: 1.- Only bottom slabs, webs and outer flanges are cast. After hardening of concrete, prestressed up to 60%. In this sub-phase, a self-bearing structure is achieved, so falsework can be launched while works go on in the current “span”. In this phase the cross-section is temporarily opened, so it is necessary to close it with steel struts that can be reused.

  • Building a high-speed railway station in Girona

     Pujol Baldellou, Víctor; Tomàs Acosta, Joan; Ramos Moreno, Caterina; Aparicio Bengoechea, Angel Carlos; Ramos Schneider, Gonzalo
    International Conference on Railway Technology: Research, Development and Maintenance
    Presentation's date: 2012
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The high-speed railway station in Girona (Spain) is a diaphragm wall enclosure of approximately 600 meters long, 55 meters wide and an excavated depth of 25 meters. In the cross section there is a bus station, two floors of parking vehicles and a high-speed railway station. The different floors are supported by the external diaphragm walls and the piles of the central zone of the station. A pile diaphragm wall in the lineup of the central piles let pass the TBM that performs the previous and posterior tunnel without delaying the timing of the whole construction.

  • Seismic assessment of a long-span arch bridge considering the variation in axial forces induced by earthquakes

     Alvarez, J.J.; Aparicio Bengoechea, Angel Carlos; Jara, J. M.; Jara, M.
    Engineering structures
    Date of publication: 2012-01
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Structural behavior of inferior-deck spatial arch bridges with imposed curvature

     Sarmiento Comesias, Marta; Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    ASCE. Journal of bridge engineering
    Date of publication: 2012-07
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Towards a model of dry shear keyed joints: Modelling of panel tests

     Turmo Coderque, Jose; Ramos Schneider, Gonzalo; Aparicio Bengoechea, Angel Carlos
    Computers and concrete
    Date of publication: 2012-11
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Refuerzo de puentes de luces medias por conversión en arco atirantado tipo network  Open access

     Valenzuela Saavedra, Matías Andrés
    Defense's date: 2012-03-23
    Department of Construction Engineering, Universitat Politècnica de Catalunya
    Theses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Según estudios estadísticos a nivel mundial, una de las principales causas de fallos en puentes corresponde a problemas relacionados con la interacción entre estructura e hidráulica produciendo altos costos humanos y económicos. La mayoría de las patologías se relacionan con procesos de socavación y erosión en pilas y estribos, específicamente en las cimentaciones de las pilas, siendo necesario tomar medidas para su refuerzo. Las dificultades en la inspección y mantenimiento de la infraestructura, junto con la ineficiencia y elevados costos en la implementación de los refuerzos convencionales (pilotajes, recrecidos, entre otros) ha motivado al Departamento de Puentes, Ministerio de Obras Públicas de Chile, el desarrollo de una nueva técnica de refuerzo con el objetivo de eliminar la causa de la patología: las pilas y sus cimentaciones, focalizándose el estudio en puentes con tipología de viga continua de varios vanos de hormigón armado. La metodología propuesta considera el cambio estructural del puente incorporando arcos superiores atirantados con configuración de péndolas network y vertical encargados de levantar tablero y esfuerzos en el arco. A partir de ello, se verifica el comportamiento del refuerzo en etapas de construcción y posteriormente en estado de servicio mediante un análisis de las cargas de tráfico y accidentales (capítulo 5). Los resultados dan lugar a la sistematización del método de refuerzo alternativo propuesto, incluyendo la propuesta estructural y tecnológica, la factibilidad del proceso constructivo y, finalmente, un conjunto de criterios básicos de diseño para este tipo de refuerzos (capítulo 6). Finalmente, la validación estructural del método y un primer estudio económico de costes comparado respecto a otros métodos convencionales de refuerzo, entregan para futuros ingenieros un conjunto de criterios y recomendaciones básicas para la implementación de esta técnica. el tablero del puente original, el cuál, gracias a la aplicación de un pretensado exterior, actúa como tirante del sistema del arco, contrarrestando los empujes horizontales del mismo en los arranques. El levantamiento del tablero desde los soportes permite la demolición de éstos, reduciendo los riesgos relacionados con la interacción de la estructura con el flujo del cauce; además de reutilizar parte del puente original y entregar un nuevo concepto estético. Para determinar la factibilidad del método, se pone énfasis en el estudio del método constructivo a partir del proceso de tesado de las péndolas así como en su comportamiento en servicio posterior, teniendo en cuenta las solicitaciones sísmicas, de gran importancia en Chile. El proceso constructivo a plantear debe satisfacer dos requisitos fundamentales: evitar tensiones excesivas en el tablero para no superar las solicitaciones existentes en el puente original; y permitir un levantamiento total de la superestructura desde las pilas dañadas. El tener que mantener unos determinados niveles de tensión en el tablero original supone una complejidad adicional respecto a lo que sería el diseño y construcción de un puente arco tipo network totalmente nuevo. Nos encontramos pues ante un problema de optimización (orden y magnitud de las fuerzas de tesado para levantar el tablero) con fuertes condiciones de contorno (no superar los niveles máximos de esfuerzos en el tablero original). Frente a la complejidad del proceso de optimización multiobjetivo del proceso de tesado, se descarta el uso de una optimización manual (prueba y error), en favor de una metodología que combina el uso automatizado de programas de elementos finitos y métodos de optimización meta-heurísticos (algoritmos genéticos). Esta herramienta, desarrollada, calibrada y validada (capítulo 3), proporciona todo un conjunto de soluciones factibles del proceso constructivo. El algoritmo desarrollado se utiliza como herramienta para el estudio e implementación de esta metodología en dos puentes carreteros ubicados en la zona central de Chile, con tipología original de viga continua y con importantes problemas de socavación: San Luis (60 metros de longitud total distribuidos en cuatro vanos) y Puangue (72 metros de longitud total distribuidos en cuatro vanos). Mediante la aplicación práctica a estos dos puentes carreteros, se desarrolla un estudio paramétrico en etapa constructiva (capítulo 4), considerando como variables: el tipo de perfil del arco, la configuración de las péndolas network, entre otros, entregándose la influencia que tiene cada una de ellas en relación a la capacidad de levantamiento, admisibilidad de tensiones en el

    According to statistical studies worldwide, one of the main causes of damages in bridges correspond to problems related to the interaction between structure and hydraulic provoking high human and economic costs. Most pathology is related to processes of scour and erosion in piers and abutments, specifically in the foundations of the piers, being necessary to take strengthening measures. The difficulties in inspection and maintenance of infrastructure, and the inefficiency related to the high costs in the implementation of conventional strengthening methods (pile driving, screeds, etc.) has prompted the Department of Bridges, Ministry of Public Works of Chile, the development of a new method of strengthening in order to eliminate the cause of the pathology: the piers and its foundations, focusing the study on continuous bridges with several spans and cross-section of built up reinforced concrete beams plus an upper slab. The proposed methodology considers a structural change of bridge by the incorporation of upper arches with a network and vertical hangers arrangement, which, through the application of external prestressing, allows the system to behave as a bow tied, balancing the horizontal thrusts in its edges. The lifting of the deck from the supports via the vertical hangers allows their demolition, reducing the risks associated with the interaction of the structure with the river flow (scour), in addition to reuse the original bridge and deliver a new aesthetic. To determine the feasibility of the method, the study emphasizes on the construction method, specially on the process of tensioning of the hangers and their behaviour in service, considering the seismic loads, relevant in Chile. The construction process proposed must satisfy two fundamental requirements: to avoid excessive stress on the deck not to exceed the stresses existing in the original bridge or the maximum material strength and allowing a total lift of the superstructure from the damaged piers. Maintain certain level of stress on the original deck is an additional significant complexity, compared with the design and construction of a new network arch bridge. This derives on an optimization problem (order and magnitude of tensioning forces to lift the deck) with strong boundary conditions (not to exceed the maximum internal forces in the original deck). Given the complexity of multi-objective optimization of the tensioning process, the use of manual optimization (trial and error) is rejected, for a methodology that combines the use of automated finite element programs and methods of optimization meta-heuristics (genetic algorithms). This tool, developed, calibrated and validated (Chapter 3) provides a whole set of feasible solutions of the construction process. The algorithm developed is used as a tool for the study and implementation of this methodology on two highway bridges located in central Chile, with a original typology of continuous beam and important problems of scour: San Luis (60 meters total length in four spans) and Puangue (72 meters total length in four spans). Through the practical application of these two road bridges, a parametric study of the constructive stages is developed (Chapter 4), considering as variables: the arch profile, the network hangers arrangement, among others, giving the influence of each in relation to the lifting capacity, admissibility of stresses in the deck and internal forces in the arch. From this, the performance in construction and service stages is studied through an analysis of traffic and accidental loads (chapter 5). The results, lead to the systematization of the strengthening proposed method, including structural and technological proposals, the feasibility of the construction process and finally, a set of basic design criteria for this type of strengthening (Chapter 6). Finally, the structural validation of the method and a first economic study of costs compared to other conventional strengthening methods give a set of criteria and recommendations for the implementation of this technique.

    Segons estudis estadístics a nivell mundial, una de les principals causes de fallades en ponts correspon a problemes relacionats amb la interacció entre estructura i hidràulica produint alts costos humans i econòmics. La majoria de les patologies es relacionen amb processos de soscavació i erosió en piles i estreps, específicament en les fonamentacions de les piles, i caldrà prendre mesures per reforç. Les dificultats en la inspecció i manteniment de la infraestructura, juntament amb la ineficiència i elevats costos en la implementació dels reforços convencionals (pilotatges, recrescuts, entre altres) ha motivat al Departament de Ponts, Ministeri d'Obres Públiques de Xile, el desenvolupament de una nova tècnica de reforç amb l'objectiu d'eliminar la causa de la patologia: les piles i els seus fonaments, focalitzant l'estudi en ponts amb tipologia de biga contínua de diversos trams de formigó armat. La metodologia proposada considera el canvi estructural del pont incorporant arcs superiors atirantats amb configuració de pèndoles network i vertical encarregats d'aixecar el tauler del pont original, el qual, gràcies a l'aplicació d'un pretensat exterior, actua com tirant del sistema de l'arc, contrarestant les empentes horitzontals de la mateixa en les arrencades. L'aixecament del tauler des dels supports permet la demolició d'aquests, reduint els riscos relacionats amb la interacció de l'estructura amb el flux de la llera, a més de reutilitzar part del pont original i donar un nou concepte estètic. Per determinar la factibilitat del mètode, es posa èmfasi en l'estudi del mètode constructiu a partir del procés de tesat de les pèndoles així com en el seu comportament en servei posterior, tenint en compte les sol·licitacions sísmiques, de gran importància a Xile. El procés constructiu a plantejar ha de satisfer dos requisits fonamentals: evitar tensions excessives en el tauler per no superar les sol·licitacions existents en el pont original, i permetre un aixecament total de la superestructura des de les piles danyades. El haver de mantenir uns determinats nivells de tensió en el tauler original suposa una complexitat addicional respecte al que seria el disseny i construcció d'un pont arc tipus network totalment nou. Ens trobem doncs davant d'un problema d'optimització (ordre i magnitud de les forces de tesat per aixecar el tauler) amb fortes condicions de contorn (no superar els nivells màxims d'esforços en el tauler original). Davant la complexitat del procés d'optimització multiobjectiu del procés de tesat, es descarta l'ús d'una optimització manual (prova i error), a favor d'una metodologia que combina l'ús automatitzat de programes d'elements finits i mètodes d'optimització meta-heurístics (algorismes genètics). Aquesta eina, desenvolupada, calibrada i validada (capítol 3), proporciona tot un conjunt de solucions factibles del procés constructiu. El algorisme desenvolupat s'utilitza com a eina per a l'estudi i implementació d'aquesta metodologia en dos ponts carreters ubicats a la zona central de Xile, amb tipologia original de biga contínua i amb importants problemes de soscavació: Sant Lluís (60 metres de longitud total distribuïts en quatre obertures) i Puangue (72 metres de longitud total distribuïts en quatre obertures). Mitjançant l'aplicació pràctica a aquests dos ponts carreters, es desenvolupa un estudi paramètric en etapa constructiva (capítol 4), considerant com a variables: el tipus de perfil del arc, la configuració de les pèndoles network, entre altres, lliurant la influència que té cada una d'elles en relació a la capacitat d'aixecament, admissibilitat de tensions en el tauler i esforços en l'arc. A partir d'això, es verifica el comportament del reforç en etapes de construcció i posteriorment en estat de servei mitjançant una anàlisi de les càrregues de trànsit i accidentals (capítol 5). Els resultats donen lloc a la sistematització del mètode de reforç alternatiu proposat, inclosa la proposta estructural i tecnològica, la factibilitat del procés constructiu i, finalment, un conjunt de criteris bàsics de disseny per a aquest tipus de reforços (capítol 6). Finalment, la validació estructural del mètode i un primer estudi econòmic de costos comparat respecte a altres mètodes convencionals de reforç, lliuren per a futurs enginyers un conjunt de criteris i recomanacions bàsiques per a la implementació d'aquesta tècnica.

  • Verificación experimental de uniones mediante lazos de armadura y su aplicación en la construcción evolutiva de puentes  Open access

     Contreras Lopez, Catalina Del Pilar
    Defense's date: 2012-03-23
    Department of Construction Engineering, Universitat Politècnica de Catalunya
    Theses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The box-girder is currently the solution for large prestressed concrete bridges, being most used today in steel and mixed structures. Their widespread use is due to the strength characteristics and versatility, using various construction processes depending on the conditions of the work. However, it has the great disadvantage that the concrete should be done in phases. Because of the advantages of this section is really important develop new techniques to improve the performance, and reduce construction times. The construction of the top slab involves extension straight joints. It has been observed that this kind of joint requires additional measures during execution, either from the point of view of the danger to operators or remove the inside formwork. As a result, it is needed propose a new type of joint, by loops, reducing risks, minimizing the construction times and making easier the work on site. To understand the behaviour of a structure with this loop joint, are built concrete sections with representative dimensions of a railway bridge, with a concrete joint, reproducing, as far as possible, what happens in reality. These sections will be tested experimentally. In a previous study has been analysed the performance in a simple bending test. For this reason, in this study is checked the response in pure bending. Dynamic and static campaigns are done, using for this a total of 8 slabs, existing three types of union based on European codes: - Reference Slab (LR) with a continuous reinforcement - DIN Slab (LD) with a loop joint according to DIN 1045 - Experimental Slab (LE) with the proposed loop joint With these results it is possible to know the performance until failure, under static and dynamics loads with a number of cycles of 2 x 10^6. In static load campaign are tested 3 slabs, representatives of the different types of continuity. With these results is possible to make a comparison between the behaviour of the slabs associated with: longitudinal and transverse strain, deflections and concrete joint opening. In dynamic load campaign are tested 5 slabs, three of them with the same type of reinforcement and the other two representatives of the others types. In each of these tests are applied different load ranges, depending on the objectives, defining 5 tests: 1. LR: ¿s=150 MPa --> Q_max=141 kN y Q_min=50 kN 2. LD: ¿s=150 MPa --> Q_max=141 kN y Q_min=50 kN 3. LE_2: ¿s=150 MPa --> Q_max=141 kN y Q_min=50 kN 4. LE_3: ¿s=150 MPa --> Q_max=210 kN y Q_min=119 kN 5. LE_4: ¿s=127 MPa --> Q_max=125 kN y Q_min=47 kN Based on the test load levels, are made comparisons between these results and the results obtained for an experimental slab under simple bending (L.F.S.), associated to: dynamic deflection, concrete joint opening, longitudinal and transverse strain, and failure loads after finished dynamic tests. Finally, are proposed futures research works, in order to increase the knowledge associated with a loop joint reinforcement under another type of efforts.

  • Verificación experimental de uniones mediante lazos de armadura y su aplicación en la construcción evolutiva de puentes

     Contreras, Catalina P.; Casas Rius, Joan Ramon; Aparicio Bengoechea, Angel Carlos
    Congreso de la Asociación Científico-Técnica del Hormigón Estructural
    Presentation's date: 2011-10-26
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    El presente trabajo entrega un estudio a partir de ensayos de un nuevo tipo de empalme para puentes de sección cajón construidos evolutivamente, buscando reducir riesgos asociados a la construcción y plazos de ejecución. Por esta razón se realizan ensayos de rotura en losetas de hormigón armado, estableciendo una comparación de resultados para el empalme experimental con otras losetas de armadura continua y empalme mediante lazos establecido en DIN 1045. Se entregan los resultados de carga de rotura, deformaciones en la armadura, flechas y abertura de junta de hormigonado para un ensayo de flexión pura. Se plantean las metodologías de ensayo y se entrega un primer ensayo a fatiga, esperando concluir en futuros trabajos acerca del comportamiento frente a este fenómeno en las diferentes losetas.

  • Diseño y validación experimental de uniones mediante superposición con lazos en viaductos de hormigón de sección transversal evolutiva

     Villalba Herrero, Sergio; Aparicio Bengoechea, Angel Carlos; Casas Rius, Joan Ramon
    Congreso de la Asociación Científico-Técnica del Hormigón Estructural
    Presentation's date: 2011-10-26
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    En este trabajo se estudia el diseño y la posterior validación experimental de una unión estructural de longitud limitada, basada en la superposición a través de lazos de armaduras yuxtapuestas, confinadas en su interior mediante armadura transversal, para materializar el enlace de dos elementos estructurales ejecutados en distintas fases de hormigonado. En la presente investigación se analiza la respuesta y el comportamiento frente a flexión simple de 16 losas de hormigón armado, cuya totalidad, engloban dos campañas experimentales, una primera frente a carga estática, seguida de una segunda frente a carga cíclica. Los parámetros de longitud total del lazo proyectado y del diámetro empleado son analizados y comparados frente a la capacidad última resistente. Asimismo, los valores obtenidos son cotejados con los obtenidos mediante las losas de referencia (sin dispositivo de unión) para validar su aplicabilidad.

  • Experimental verification of construction joints by reinforcement loops

     Contreras, Catalina P.; Aparicio Bengoechea, Angel Carlos; Casas Rius, Joan Ramon
    International Conference on Space Structures
    Presentation's date: 2011-09-21
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The present work delivers one experimental study of a new type of joint reinforcement for boxgirder bridges constructed evolutionarily, seeking to reduce execution time, improve formwork placement inside the box section, and minimize work risks. For this reason, failure tests are carried out in reinforced concrete slabs, comparing the experimental results of proposed joint with continuous reinforcement and a loop union according to DIN 1045. The results are delivered in terms of resistance, deflection and concrete joint opening for a pure bending test. They are also included the results of a fatigue test, waiting to conclude in the next future the work about the behaviour of different concrete slabs.

  • Grillage analysis of cellular decks with inclined webs

     Mozos, Carlos Manuel; Aparicio Bengoechea, Angel Carlos
    Proceedings of the Institution of Civil Engineers. Structures and buildings
    Date of publication: 2011-01
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Structural behaviour of segmental concrete continuous bridges with unbonded prestressing and dry joints

     Turmo Coderque, Jose; Ramos Schneider, Gonzalo; Aparicio Bengoechea, Angel Carlos
    Structure and infrastructure engineering
    Date of publication: 2011-11
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Aplicación de criterios de robustez estructural para la ampliación de la vida útil de puentes existentes

     Aparicio Bengoechea, Angel Carlos; Ramos Schneider, Gonzalo; Valenzuela Saavedra, Andrés; Chambi Chuquichambi, José Luis; Casas Rius, Joan Ramon
    Participation in a competitive project

     Share

  • Numerical and experimental study on the interaction cable structure during the failure of a stay in a cable stayed bridge

     Mozos, Carlos Manuel; Aparicio Bengoechea, Angel Carlos
    Engineering structures
    Date of publication: 2011-08
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Viabilidad del empleo de hormigón autocompactante en viaductos de hormigón

     Díaz de Terán, José Ramón; Turmo Coderque, Jose; Ramos Schneider, Gonzalo; Salinas, Santiago; Barragan, Bryan Erick; Mozos, Carlos Manuel; Aparicio Bengoechea, Angel Carlos
    Congreso Iberoamericano sobre Hormigón Autocompactante
    Presentation's date: 2010-07-02
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Además de las vigas prefabricadas, existen dos procedimientos clásicos de construcción de tableros de viaductos de gran longitud y luces medias, uno, el de la construcción vano a vano y otro el del empuje del dintel, bien en sus versiones “in situ”, o bien mediante dovelas prefabricadas. No obstante, a pesar de estar bastante industrializados, su competitividad en cuanto a costes estrictos de implantación se ve perjudicada por los plazos de ejecución requeridos. Siguiendo las fases de hormigonado clásicas de la sección transversal de un puente de hormigón construído vano a vano, el plazo de ejecución de un vano es de dos semanas por vano (una semana por fase). Se ha visto que la posible evolución de estos sistemas constructivos en cuanto a disminución de plazo y, por tanto, de coste de construcción, va en la dirección de construir esquemas autoportantes parciales que permitan avanzar la cimbra o empujar rápidamente un núcleo resistente y completar luego la sección transversal con medios auxiliares más sencillos y fuera de camino crítico. Además, el empleo de hormigones autocompactantes (Self Compacting Convcrete, SCC), de fácil puesta en obra, aumentaría los rendimientos de producción.

  • Passive seismic energy dissipation applying fluid viscous damping technology: a state-of-the-art review

     Valdebenito, Galo; Aparicio Bengoechea, Angel Carlos; Álvarez Sereno, José de Jesús; Lopez Almansa, Francisco
    Congreso Chileno de Sismología e Ingeniería Antisísimica
    Presentation's date: 2010-05
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Developments in under-deck and combined cable-stayed bridges

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Proceedings of the Institution of Civil Engineers. Bridge engineering
    Date of publication: 2010-06
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Criterios de diseño de viaductos en varios tramos de L.A.V. Madrid-Barcelona-Frontera francesa

     Polo Orodea, Tomás; Ramos Moreno, Caterina; Aparicio Bengoechea, Angel Carlos; Ramos Schneider, Gonzalo
    Hormigon y acero
    Date of publication: 2010-12
    Journal article

     Share Reference managers Reference managers Open in new window

  • Access to the full text
    Rain-wind-induced cable vibrations in the Alamillo cable-stayed bridge (Sevilla, Spain): assessment and remedial action  Open access

     Casas Rius, Joan Ramon; Aparicio Bengoechea, Angel Carlos
    Structure and infrastructure engineering
    Date of publication: 2010-10
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Rain combined with wind action provoking vibration has been observed in the longest stays of the Alamillo cablestayed bridge in Sevilla (Spain). The maximum displacements observed are in the order of magnitude of 0.5 m and have caused discomfort problems to the pedestrian circulation across the bridge. The paper shows the analytical and experimental studies carried out to analyse the possible solutions and also the steps developed to stop the vibration phenomenon. In 2004, a dynamic test in the cables was envisaged to measure the actual damping in the cables. It became clear that damping in the cables was very low and the solution required the installation of dampers. The damping devices had to be in accordance with the relevant aesthetic constraints of the structure. The installation of the damping devices took place during 2007. After the installation of the damping devices, a new dynamic test was carried out in February of 2008 to check if the level of damping introduced by the dampers was appropriate. During the tests performed in 2004, the natural frequencies of vibration were also obtained at the same time than damping. The comparison between the two sets of natural frequencies (1992 and 2004) allow to extract important conclusions about the correct performance and condition state of the bridge as well as the evolution of forces in the cables after 12 years of construction due to creep in the tower.

  • Diseño y validación experimental de uniones mediante superposición con lazos en viaductos de hormigón de sección transversal evolutiva. Optimización del proceso constructivo

     Villalba Herrero, Sergio
    Defense's date: 2010-09-15
    Department of Construction Engineering, Universitat Politècnica de Catalunya
    Theses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Evaluación estructural mediante pruebas de carga de puentes existentes. Alicación a los puentes de carretera en Europa

     Gómez Roldán, Juan David
    Defense's date: 2010-07-20
    Department of Construction Engineering, Universitat Politècnica de Catalunya
    Theses

     Share Reference managers Reference managers Open in new window

  • Comportamiento a cortante de forjados unidireccionales de vigueta o semivigueta pretensada

     Ribas González, Carlos
    Defense's date: 2010-09-17
    Department of Construction Engineering, Universitat Politècnica de Catalunya
    Theses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Puentes de la época medieval en las cuencas de los ríos Ter, Fluviá y Muga.  Open access

     LÓPEZ SÁNCHEZ, ÁNGEL
    Defense's date: 2010-11-16
    Department of Transport and Highway Engineering, Universitat Politècnica de Catalunya
    Theses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The work’s development is made by scientific method stages: aims statement, hypothesis establishment and work method to check hypothesis. Conclusions are given at the end. It is supported by: a) Bibliographical review, summary about knowledge evolution in work bridges building and associated historical facts. b) To know about used materials. c) Referred geographical and historical frameworks definition. d) The morphological knowledge about medieval work bridges. The work presents 111 unpublished plans. Research is divided up in nine stages. The first stage starts with the previous researching on the census of work bridges in the basins of the three most important northeaster slope Peninsula Iberian rivers that were built according to tradition in medieval period. Being censed 153 bridges we have chosen a representative sample of 20 bridges: 10 for Ter River, 7 for Fluvià River and 3 for Muga River. In second stage are highlighted: a) Field works to find, photograph and measure bridges. b) Works in Record Offices and Public Libraries to find technical and historical information. In this stage are included works made in Record Offices of General Administration, History of Councils, Culture and Environmental Departments of Generalitat of Catalunya, private organizations as soon as interviews to people related to significant historical facts about the research topic. c) Works made in Universities Libraries and CICCP nets. Taking in account the whole information coming from the field works, it has been made, in the third stage, three format A3 plans for every one of 20 bridges. They are referred to measurements, parameters composition and focusing angles joining 6 bridge pictures. In fourth stage we analyse structural elements, we classify every vault according Sejourné viewpoints stated in his work “Grandes voûtes” (1913) and other aspects helped by engineering parameters. Twelve ancient empiric rules to size bridge measures are taken in account and is tried to identify their influence in bridges design. In fifth stage software ARCs is used to settle bridge stability in base the pressure lines for every arch. The result allows knowing axial thrusts and eccentricities to hold up the pressure lines in the right values. Simulations are made with the own structure weight under punctual loads of 360KN at ½ and ¼ gap. Structure safety coefficients are settled according punctual load to road wideness and loads carried by available transport means in this past period. Analytical study is made to calculate vertical and axial thrusts to determine specific load on pillar’s foundation. Results got by both ways are compared. Results are shown on two plans for every bridge. Hypothesis about possible layouts or sittings of four bridges that could have originally been built are shown in sixth stage. Photographs and plans are joined. In seventh stage every bridge description is connected with the territory and river zone characteristics. Driving slope for seven hundred length upriver and downriver for every bridge are worked out. Bridge filling percentage for several depth of water is assessed. With this information and those that are collected from river agents and the sings of levels reached in historical floods, the possible flooded ground zone is assessed. Relationship between the basin surface, average upriver rain gauged and bridge drainage surface is established. This information is related to the flooded zones before mentioned. The consequential hydraulic effects are shown in a plan. Eighth stage. Three family groups are made among the studied bridges and those which have been built in Spain and France. The main constructive characteristics and their evolution through years are analysed. Ninth stage. Relevant historical facts referred to the bridge are synthesized.

    El trabajo se desarrolla basándose en las etapas del método científico: enunciado de los objetivos, planeamiento de hipótesis, método de trabajo llevado a termino para el contrates de las hipótesis y conclusiones a las que se llegan. Se apoya en: a) En la revisión bibliográfica sobre la evolución del estado del conocimiento de la construcción de los puentes de obra de fábrica y en los hechos históricos asociados a los puentes estudiados. b) En el conocimiento de los materiales empleados. c) En la definición de los marcos geográficos e históricos de referencia con el trabajo. d) En la morfológica de los puente de obra de fabrica de le época Medieval. El trabajo aporta 111 planos inéditos. La investigación la dividimos en nueve fases. Primera fase: Preinvestigación sobre censo de puentes de obra de fábrica en las cuencas de los tres ríos más importantes de la vertiente nororiental de la península ibérica que según la tradición popular datan de la época medieval. De153 censados, elegimos una muestra representativa de 20 puentes: 10 en la cuenca del río Ter, siete en la del río Fluviá y tres en la del río Muga. Segunda fase: a) Trabajos de campo: localizar los puentes, fotografiarlos y medirlos. b) Trabajos en archivos y bibliotecas. El alcance de esta fase engloba los realizados en los archivos: General de la Administración, históricos de Ayuntamientos, Diputaciones, Departamentos de Cultura y Medio Ambiente de la Generalitat de Cataluña, Red de Bibliotecas de Universidades, en la del CICCP, entidades privadas, c) Entrevistas. Tercera fase: Partiendo de la información recopilada en los trabajos de campo, realizamos tres planos en formato A3 para cada de los 20 puentes a estudiar: el de medidas, el de composición de los paramentos y el de ángulos de enfoque con 6 fotografías del puente. Cuarta fase: Análisis de los elementos estructurales de los puentes. Clasificación de bóvedas según Séjourné en su obra “grandes voûtes”(1913) y otras de carácter ingenieril. Se desarrollan 12 reglas empíricas empleadas para dimensionar puentes con las que se intenta identificar su influencia en el diseño de los puentes estudiados. Quinta fase: Se utiliza el programa ARCs, se estudia estabilidad del puente partiendo de la localización de la línea de empuje Los resultados permiten conocer los empujes axiales y las excentricidades que mantienen la línea de empujes dentro de los márgenes adecuados. Se simulan resultados para el peso propio de la estructura y también para cargas puntuales de 360KN a ½ y ¼ del vano. Se determinan los coeficientes de seguridad adaptando la carga puntual a valores adecuados a la amplitud de la calzada y a las cargas a transportar. Se complementa el cálculo de los empujes verticales y axiales para conocer el valor de la carga específica sobre los cimientos de cada pila. Se comparan los resultados por ambos métodos. Los resultados se exponen de dos planos por puente. Sexta fase: Planteamiento sobre planos y/o fotografías de hipótesis sobre los trazados y/o localizaciones que podrían haber tenido originalmente cuatro de los puentes. Séptima fase: Relaciones entre río y puente. Calculo de la pendiente motriz para los diferentes tramos de ríos y de porcentaje de obturación que presenta el puente para diferentes niveles de calado. Estimación de la zona inundable. Relaciones entre las superficies de las cuencas y las de desagüe del puente. En un plano se engloban los resultados de estos efectos hidráulicos. Octava fase: formamos tres familias de puentes según la zona geográfica donde se localiza: Francia, España y los estudiados. Analizamos las variaciones entre las principales relaciones constructivas, las tendencias de su evolucionado a lo largo de los años. Novena fase: Se citan los hechos históricos asociados a la existencia del puente.

  • Parametric study on the dynamic response of cable stayed bridges to the sudden failure of a stay: part I: Bending moment acting on the deck

     Mozos, Carlos Manuel; Aparicio Bengoechea, Angel Carlos
    Engineering structures
    Date of publication: 2010-10
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Shear truss analogy for concrete members of solid and hollow circular

     Turmo Coderque, Jose; Ramos Schneider, Gonzalo; Aparicio Bengoechea, Angel Carlos
    Engineering structures
    Date of publication: 2009-01
    Journal article

     Share Reference managers Reference managers Open in new window

  • Response of under-deck cable-stayed bridges to the accidental breakage of stay cables

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Engineering structures
    Date of publication: 2009-07
    Journal article

     Share Reference managers Reference managers Open in new window

  • Passive Seismic Protection of Cable-Stayed Bridges Applying Fluid Viscous Dampers under Strong Motion.

     Valdebenito Montenegro, Galo
    Defense's date: 2009-05-29
    Department of Geotechnical Engineering and Geo-Sciences, Universitat Politècnica de Catalunya
    Theses

     Share Reference managers Reference managers Open in new window

  • Disipación pasiva de energía sísmica en estructuras de periodo largo aplicando tecnologías de amortiguamiento viscoso suplementario: una visión actualizada

     Valdebenito, Galo; Aparicio Bengoechea, Angel Carlos; Álvarez Sereno, José de Jesús; Lopez Almansa, Francisco
    Congreso Nacional de Ingeniería Sísmica
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Vulnerabilidad sísmica de los edificios de hormigón armado con forjados reticulares

     Moreno González, Rosángel; Aparicio Bengoechea, Angel Carlos; Pujades Beneit, Luis Gonzaga; Barbat Barbat, Horia Alejandro
    Hormigon y acero
    Date of publication: 2009-09
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • GRUP DE TECNOLOGIA D'ESTRUCTURES

     Arnedo Pena, Alfredo Bernardo; Agulló Fité, Luís; Roca Fabregat, Pedro; Casas Rius, Joan Ramon; Bairan Garcia, Jesus Miguel; Ramos Schneider, Gonzalo; Molins Borrell, Climent; de la Fuente Antequera, Alberto; Chacon Flores, Rolando Antonio; Valdes Lopez, Manuel; Real Saladrigas, Esther; Garcia Vicente, Tomas; Oller Ibars, Eva; Aparicio Bengoechea, Angel Carlos; Aguado De Cea, Antonio; Mirambell Arrizabalaga, Enrique; Estrada Palacios, Immaculada; Mari Bernat, Antonio Ricardo
    Participation in a competitive project

     Share

  • Seismic protection of cable-stayed bridges applying fluid viscous dampers

     Valdebenito, Galo; Aparicio Bengoechea, Angel Carlos
    Date of publication: 2009
    Book

     Share Reference managers Reference managers Open in new window

  • Static strain energy and dynamic amplification factor on multiple degree of freedom systems

     Mozos, Carlos Manuel; Aparicio Bengoechea, Angel Carlos
    Engineering structures
    Date of publication: 2009-11
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Structural behaviour and design criteria of under- deck cable-stayed bridges and combinated cable-stayed bridges. Part 2: Multispan bridges

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Canadian journal of civil engineering
    Date of publication: 2008-09
    Journal article

     Share Reference managers Reference managers Open in new window

  • Comportamiento Sísmico de Puentes Atirantados: Pasado, Presente y Futuro

     Valdebenito, G; Aparicio Bengoechea, Angel Carlos
    Obras y proyectos. Revista de ingeniería civil
    Date of publication: 2008-01
    Journal article

     Share Reference managers Reference managers Open in new window

  • Structural behaviour and design criteria of under-deck cable-stayed bridges and combined cable-stayed bridges. Part 1: Single-span bridges

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Canadian Journal of Civil Engineering
    Date of publication: 2008-01
    Journal article

     Share Reference managers Reference managers Open in new window

  • Eliminating bridge piers using stay cables with unconventional layouts

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    fib Symposium
    Presentation's date: 2008-05
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    This communication explores innovative schemes and shows how in continuous prestressed concrete viaducts of medium length (40 m) the inclusion of under-deck or combined stay cables allows the elimination of intermediate or end piers. In these cases, the length of certain spans is doubled, while the main characteristics of the deck (depth, concrete strength, amount of reinforcement, amount of active steel, etc.) can be maintained. These schemes are very appropriate for the situations in which non-structural conditions make a uniform span distribution a non possible option for the design of a viaduct. In addition, it could be an alternative option when a pier of a built bridge has to be shifted due to the widening of an underneath infrastructure.

  • Effect of variation of the stay prestressing forces on the seismic response of cable-stayed bridges

     Valdebenito, G; Aparicio Bengoechea, Angel Carlos
    World Conference on Earthquake Engineering
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Dynamic testing of bridges using traffic-induced vibration

     Casas Rius, Joan Ramon; Aparicio Bengoechea, Angel Carlos
    Date of publication: 2008-07
    Book chapter

     Share Reference managers Reference managers Open in new window

  • Herramientas necesarias para la evaluación sísmica de edificios

     Moreno González, Rosángel; Pujades Beneit, Luis Gonzaga; Aparicio Bengoechea, Angel Carlos; Barbat Barbat, Horia Alejandro
    Date of publication: 2008
    Book

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Diseño y validación experimental de uniones mediante superposición con lazos en viaductos de hormigón de sección transversal evolutiva. Optimización del proceso constructivo

     Villalba Herrero, Sergio; Casas Rius, Joan Ramon; Aparicio Bengoechea, Angel Carlos
    Congreso Internacional de Estructuras
    Presentation's date: 2008-11-25
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Two new types of bridges:under-deck cable-stayed bridges and combined cable-stayed bridges- the state of the art

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Canadian journal of civil engineering
    Date of publication: 2007-08
    Journal article

     Share Reference managers Reference managers Open in new window

  • Tradition and Innovation in Teaching Structural Design in Civil Engineering

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Journal of professional issues in engineering education and practice
    Date of publication: 2007-10
    Journal article

     Share Reference managers Reference managers Open in new window

  • Dynamic amplification factors in cable-stayed structures

     Ruiz-Teran, Ana M; Aparicio Bengoechea, Angel Carlos
    Journal of sound and vibration
    Date of publication: 2007-02
    Journal article

     Share Reference managers Reference managers Open in new window