梁式桥减、隔震装置设计

Isolator devices design of Beam Bridge by isolator

梁式桥铅芯橡胶支座联合三角形钢板减、隔震消能组合装置设计,根据结构减、隔震机理,由铅芯橡胶支座承受主要的竖向荷载,并采用具有一定自恢复力的弹塑性减震耗能装置三角形钢板与之并联使用,该梁式桥减、隔震装置既充分发挥了铅芯橡胶支座竖向承载力高的优势,又利用弹塑性减震耗能装置和铅芯橡胶支座阻尼来耗散地震能量,有效地限制墩梁间的相对位移,减震效果达70%,位移减小50%。对地震后尽快恢复桥梁的交通具有重要的意义。

Beam Bridge joint lead-rubber bearing isolation by triangular plate energy dissipation design portfolio According to the structure of the mechanism by isolation,by the LRB to bear the main vertical load,and the use of a certain self-restoring force of the elastic-plastic energy damping device in parallel with the use of triangular plate,and give full play to both the lead-rubber support Block,the advantages of vertical bearing capacity of the high and the use of elastic-plastic energy damping devices and lead-rubber bearing damping to dissipate seismic energy,effectively limit the pier relative displacement between the beams,damping effect of up to 70%,50%reduced displacement.On the bridge after the earthquake as soon as possible the traffic is important.