Study of seismic improvement for girder bridge by polyurethane-modified polymer bearings

摘要：

　　To improve the seismic capacity of existing bridge,a high-performance polyurethanemodified polymer(PUMP)bearing was invented.Four novel PUMP bearings ware designed and carried out on compression and shear performance experimental studies.The experimental study result shows the new isolation bearings have excellent vertical load capacity and favorable horizontal isolation performance,these properties make the new bearings become a potential selector to replace the pot bearings and improve the seismic performance.Two isolation layout schemes were studied and compared with the un-isolation bridge,the research result shows that the scheme which replacing fixed pot bearings with the PUMP bearings can significantly reduce the internal force of the pier while the superstructure displacement can maintain in an acceptable level.

关键词： polyurethane-modified polymer seismic improvement bridge isolation

作者: Siqi Wang Yong Yuan Xiuchen Feng Hongping Zhu

作者单位: School of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 937-942

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）