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首页> 外文期刊>Engineering Structures >FEM study on the structural behaviour of segmental concrete bridges with unbonded prestressing and dry joints: Simply supported bridges
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FEM study on the structural behaviour of segmental concrete bridges with unbonded prestressing and dry joints: Simply supported bridges

机译：无粘结预应力干连接分段混凝土桥梁结构性状的有限元研究：简支桥梁

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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.
机译：这项工作提出了一种用于分段混凝土桥梁性能的有限元方法（FEM）分析，重点是在服务状态和极限状态下组合剪切和挠曲下的响应。先前已验证的FEM模型已应用于模拟简单支撑的桥梁的结构行为。非线性和几何模型考虑了干接缝的特殊性能，混凝土的可塑性以及偏斜处预应力筋的滑移。一旦接头打开，关于这些结构的增强标准和抗力机理就得出了有趣而原始的结论。

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