预应力节段拼装桥墩抗震性能实体有限元模拟

Seismic performance simulation of segmental prestressed piers based on solid finite element method

基于实体单元开展预应力节段拼装空心桥墩抗震性能分析。为直观展示桥墩的局部受力变形与位移状态,利用ABAQUS建立三维实体有限元模型,通过与拟静力试验对比检验模型的准确性;在此基础上探究往复荷载下桥墩变形、应力、应变状态分布,为拟静力试验中试件无测点区域的受力状态提供指导。

Seismic performance analysis of segmental prestressed hollow bridge piers was carried out based on solid elements.In order to visually display the local stress deformation and displacement state of the bridge pier,a three-dimensional solid finite element model was established by ABAQUS,and the accuracy of the model was verified by comparing with the pseudo-static tests.On this basis,the deformation,stress and strain state distributions of bridge piers under reciprocating loads are explored to provide guidance for the stress state of the specimen without measuring points in the pseudo-static test.