预制拼装桥梁套筒连接的桥墩抗震性能分析

Analysis of Seismic Performance of Prefabricated Assembled Bridge Piers Connected by Sleeves

为研究预制套筒桥梁的抗震性能,采用应力分析法明确试件在应力状态下的载荷情况,并以制作试验试件的方式进行研究,提出计算预制套筒桥梁的抗震性能的方法,并以试验的方式进行验证。试验结果表明:当试件水平位移达到150 mm时试件骨架断裂,水平加载力下降到160 kN,且与最大载荷力相差59 kN时,拼接缝的大小可达到6 mm。

In order to study the seismic performance of prefabricated sleeve bridges,stress analysis method is used to clarify the load of test pieces under stress state,and experimental specimens are made for research.A method for calculating the seismic performance of prefabricated sleeve bridges is proposed and verified by experiments.The test results show that when the horizontal displacement of the test piece reaches 150 mm,the skeleton of the test piece breaks,and the horizontal loading force drops to 160 kN.When the difference between the horizontal displacement and the maximum loading force is 59 kN,the size of the splicing joint can reach 6 mm.