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Listar por palabra clave "Prestress"

Mostrando ítems 1-14 de 14

Analytical model for transfer length prediction of 13 mm prestressing strand

Martí Vargas, José Rocío; Arbeláez, C.A.; Serna Ros, Pedro; Navarro Gregori, Juan; Pallarés Rubio, Luis (2007)

An experimental investigation to determine the transfer length of a seven-wire prestressing strand in different concretes is presented in this paper. A testing technique based on the analysis of bond behaviour by means ...
Análisis estructural del pretensado en tableros de puente de vigas de hormigón prefabricado. Aplicación a un puente de carretera tipo construido en la década de 1990.

Mateu Sánchez, Juan Antonio (Universitat Politècnica de València, 2023-09-13)

[ES] En Europa, desde la década de 1960, las estructuras de hormigón pretensado se han utilizado ampliamente en la construcción de puentes debido a su capacidad para soportar grandes luces. Sin embargo, muchas de estas ...
Bond of 13 mm prestressing steel strands in pretensioned concrete members

Martí Vargas, José Rocío; Serna Ros, Pedro; Navarro Gregori, Juan; Pallarés Rubio, Luis (Elsevier, 2012-05-07)

This paper presents an experimental research work to determine both the transmission and the anchorage lengths of seven-wire prestressing steel strands in different concrete mixes. A testing technique based on a bond ...
A concept of a beam prestressed by bending: Application to a footbridge in composite materials

BAVEREL, Oliver; CARON, Jean-François (Editorial Universitat Politècnica de València, 2009-12-11)

This paper proposes a concept of a beam prestressed by bending. An application through an example of footbridge with three supports is shown and illustrated. By bending a beam with a central cable, this cable will be in ...
Estudio del diseño óptimo para el tablero del viaducto situado en el Km. 441 de la A-7 en el T.M de Cocentaina (Alicante). Análisis del tablero

Brun Izquierdo, Alejandro (Universitat Politècnica de València, 2019-01-09)

[EN] In Spain, it is common to solve the upper road steps using prestressed lightweight slab-type panels. Due to the number of structures of this type that are projected, it is of great interest to know how to apply a ...
Estudio del diseño óptimo para el tablero del viaducto situado en el Km. 441 de la A-7 en el T.M de Cocentaina (Alicante). Optimización mediante modelos kriging

Yepes Bellver, Lorena (Universitat Politècnica de València, 2019-01-09)

[EN] In Spain, it is common to solve the upper road steps using prestressed lightweight slab-type panels. Due to the number of structures of this type that are projected, it is of great interest to know how to apply a ...
Estudios para la redacción del Proyecto Básico de la variante de la carretera CV-35 a su paso por el municipio de Chelva (provincia de Valencia). Alternativa Sur. Estudio de alternativas y diseño estructural del primer puente sobre el río Chelva

Catalán Pérez, Jorge (Universitat Politècnica de València, 2016-10-20)

[EN] This Project it's include in a "multidiscipline project" that covers students from different specialities with the purpose of elaborate a viable alternative from de development of the deviation of the CV-35 passing ...
Experimental Technique for Measuring the Long-term Transfer Length in Prestressed Concrete

Martí Vargas, José Rocío; Caro Forero, Libardo Andrés; Serna Ros, Pedro (Wiley: 12 months, 2013-04)

This article presents a proposal of a test set-up and methodology for testing the transfer length evolution through time of prestressing reinforcement in pretensioned prestressed concrete members, aimed at providing a basis ...
Proposed criteria to determine experimentally the transmission length of prestressed reinforcement

Arbeláez, C.A.; Martí Vargas, José Rocío; Serna Ros, Pedro; Castro-Bugallo, M Carmen (De Gruyter Open Sp. z o.o., 2006)

[EN] In pretensioned concrete, the force in the prestressing reinforcement is transferred to the concrete by bond in the end region of the member. The distance from the end of the member over which the effective prestressing ...
Size Effect on Strand Bond and Concrete Strains at Prestress Transfer

Martí Vargas, José Rocío; Caro Forero, Libardo Andrés; Serna Ros, Pedro (American Concrete Institute, 2014)

[EN] The size-effect phenomenon has been analyzed with pretensioned prestressed concrete prismatic specimens at prestress transfer. An experimental program that includes variables such as concrete mixture design, specimen ...
Slip distribution model along the anchorage length of prestressing strands

Martí Vargas, José Rocío; Hale, WM; García Taengua, Emilio José; Serna Ros, Pedro (Elsevier, 2014-02)

An analytical model to predict strand slips within both transmission and anchorage lengths in pretensioned prestressed concrete members is presented. This model has been derived from an experimental research work by ...
Strand bond performance in prestressed concrete accounting for bondslip

Martí Vargas, José Rocío; Serna Ros, Pedro; Hale, W. M. (Elsevier, 2013-07)

This paper presents the results of an experimental research program addressing the bond behavior of prestressing strands in pretensioned prestressed concrete members after anchorage failure has occurred. A test methodology ...
Study on the key issues of beam string structures

TIAN, Wei; YANG, Lianping; CUI, Jianchun; LI, Chengming (Editorial Universitat Politècnica de València, 2009-12-15)

Parameter analysis is made on the beam string structure in six aspects which are respectively vector height, sag, prestress, number of strut, stiffness of upper chord and the arrangement of struts in the paper. The influence ...
Time-dependent evolution of strand transfer length in pretensioned prestressed concrete members

Caro Forero, Libardo Andrés; Martí Vargas, José Rocío; Serna Ros, Pedro (Society for Experimental Mechanics (SEM), 2013-11)

For design purposes, it is generally considered that prestressing strand transfer length does not change with time. However, some experimental studies on the effect of time on transfer lengths show contradictory results. ...