铅芯隔震橡胶支座在桥梁中的应用

以帮滇河3号大桥为依托,采用有限元时程分析方法,比较分析普通板式橡胶支座与铅芯隔震橡胶支座抗震性能。研究结果表明:采用铅芯隔振橡胶支座可有效改善桥梁在地震中的受力状况,较大幅度减少墩底轴力、剪力、弯矩。研究成果为该工程的支座替换提供理论依据。

Application of lead rubber bearings in bridges

This paper compares the seismic performance of ordinary laminated rubber bearings with the seismic performance of lead rubber bearings on the basis of No. 3 Bridge of Bangdian River by using finite element time-history analysis method. The results show that using lead rubber bearings can effectively improve the force status of bridges in the earthquakes. And it can also reduce pier base axial force, shear force and bending mo- ment substantially. The researching results provide theoretical bases for the replacement of bearings in this project.