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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。
According to the structure reduction and isolation mechanism, the main vertical load is supported by the lead rubber bearing, and the elastic-plasticity with certain self-restoring force The triangular steel plate of damping energy dissipation device is used in parallel with the beam bridge. The isolation device of the beam bridge not only gives full play to the advantages of high vertical bearing capacity of the lead rubber bearing, but also uses the elastoplastic damping energy dissipation device and lead rubber Seat damping dissipates seismic energy and effectively limits the relative displacement between pier and girder. The damping effect is up to 70% and displacement is reduced by 50%. It is of great importance to restore the traffic of the bridge as soon as possible after the earthquake.