【摘要】 以绵竹市回澜立交桥为工程实例,结合匝道桥实际震害,采用有限元软件SAP2000对该桥在地震作用下的抗震性能进行了分析计算。研究了匝道桥采用增加截面法和减隔震法进行抗震加固设计后的抗震性能。研究表明:采用增加截面法和减隔震法均能有效满足匝道桥的抗震安全性要求。更多还原

【Abstract】 Taking Mianzhu Huilan interchange as an example,combined with the ramp bridge actual damage,the seismic performance of the bridge under earthquake is analyzed by using SAP2000 software. The seismic performance of the ramp bridge is evaluated by the increasing the cross-sectional method and the seismic isolation method. The results show that the increasing cross-sectional method and the seismic isolation method can effectively meet the seismic safety requirements of the ramp bridge.更多还原