Overload capacity analysis of prestressed reinforced concrete beam

ZHAO Wei-guo

Volume 7 Issue 5

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ZHAO Wei-guo. Overload capacity analysis of prestressed reinforced concrete beam[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 73-76.

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ZHAO Wei-guo. Overload capacity analysis of prestressed reinforced concrete beam[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 73-76.

ZHAO Wei-guo. Overload capacity analysis of prestressed reinforced concrete beam[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 73-76.

Citation:

ZHAO Wei-guo. Overload capacity analysis of prestressed reinforced concrete beam[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 73-76.

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Overload capacity analysis of prestressed reinforced concrete beam

ZHAO Wei-guo

1.
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
2.
Bureau of Highway, Department of Communications of Hebei Province, Shijiazhuang 050051, Hebei, China

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Author Bio:
Zhao Wei-guo(197l-), male, senior engineer, +86—311—83035215, highway27@sohu.com
Received Date: 2007-04-13
Publish Date: 2007-10-25

Abstract

Abstract

In order to attested the analysis veracity of ultimate bearing capacity for prestressed concrete beam with finite element method, an loading experiment of ultimate bearing capacity was carried out, a detached finite element model of T beam was designed by using ANSYS finite element program, and the whole processes of T beam's stress and deformation from loading to destructing were analyzed.It is pointed that the variational trends of T beam's load-deflection curves and load-strain curves gained by experiment and the model are accordant, and the curves have good nonlinearity, but the experimental value of ultimate bearing capacity is 9.07 kN·m, the computational value is 12.48 kN·m, their error is appreciably big because of the idealization of the model.Analysis result shows that the nonlinear variations of all variables for prestressed reinforced concrete beam may are simulated by using finite element method in loading process as a whole, and the solution of ultimate bearing capacity is feasible.
- bridge engineering,
- prestressed reinforced concrete beam,
- ultimate bearing capacity,
- finite element method

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