FEM study on the structural behaviour of segmental concrete bridges with unbonded prestressing and dry joints: Simply supported bridges

被引:49
|
作者
Turmo, J
Ramos, G
Aparicio, AC
机构
[1] Tech Univ Catalonia, Dept Construct Engn, Barcelona 08034, Spain
[2] Univ Castilla La Mancha, ETS Ingn Caminos, E-13071 Ciudad Real, Spain
关键词
segmental bridges; castellated joints; dry joints; external prestressing; unbonded prestressing;
D O I
10.1016/j.engstruct.2005.04.011
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This work presents a finite element method (FEM) analysis of the behaviour of segmental concrete bridges, focusing on the response under combined shear and flexure, in service and ultimate limit states. A previously validated FEM model has been applied to simulate the structural behaviour of simply supported bridges. The non-linear and geometrical model considers the particular behaviour of the dry joints, the concrete plasticity and the slipping of the prestressing tendons at deviators. Interesting and original conclusions have been reached regarding the reinforcing criteria and the resistant mechanisms of these structures once the opening of the joint takes place. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1652 / 1661
页数:10
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