桥梁橡胶支座减,隔震性能研究

本文在桥梁板式橡胶支座、聚四氟乙稀滑板橡胶支座的动力剪切性能以及弧形钢板条的滞回性能试验的基础上,建立了相应的力学分析模式。通过简支梁桥模型的地震模拟振动台试验和计算分析,验证了计算模式的正确性,并表明弧形钢板条耗能器与滑板橡胶支座组合是一简易而理想的减震、耗能体系。

Seismic Isolation and Energy Absorption Properties of Elastomeric Pad Bearing for Bridges

In this paper, based on force-displacement characteristics obtained by test-ing in elastomeric pad bearings(rubber bearing and teflon plate-coated sliding bearing) and curved steel-strip, analytical models of elastomeric pad bearings and curved steel-strip are presented and confirmed by comparing results of theoretical computation with that of shaking table tests for a simple bridge model. A comprehensive study shows that a system of teflon plate-coated sliding bearings incorporating curved steel-strip energy absorber is suitable for the seismic isolation and energy absorption for bridges.