【摘要】 文章在预制空心桥墩与承台新型连接方式现场加载试验的基础上,利用ABAQUS软件,建立了2种连接方式的有限元计算模型,模拟了2种连接方式在荷载作用下的破坏形态,通过计算获得了荷载-位移曲线,并与试验结果进行了对比分析。研究结果表明:所建立的有限元模型与试验吻合较好,预制空心桥墩在墩底和桥台连接部位最终的破坏形态均为弯曲破坏;采用梯形剪力齿连接方式的预制桥墩墩顶水平位移较小,受力性能更好。更多还原

【Abstract】 Different finite element models of two connections were established by using ABAQUS based on the field loading tests on the new connection of precast hollow bridge pier and bearing platform.The failure patterns of these two kinds of connection modes under loading were simulated respectively.And the simulated load-displacement curves were compared with the experimental results.The results show that the finite element models correspond well with the experimental ones.The failure patterns of the two connections in the end are flexural failure.A smaller top horizontal displacement of precast pier can be obtained by using the connection with trapezoidal shear teeth,and the stress performance is better in this circumstance.更多还原