铅芯隔震橡胶支座与高阻尼隔震橡胶支座抗震性能差异分析

打开文本图片集

【摘    要】：对铅芯隔震橡胶支座与高阻尼隔震橡胶支座进行了物理参数及力学性能的比较，分析了两种支座的优缺点及各自的适用范围，通过建立有限元模型，比较了不同墩柱高度下两种支座地震响应结果，通过计算分析得出了两种支座可以在力学上相互替代的结论。

【关键词】：铅芯隔震橡胶支座；高阻尼隔震橡胶支座；抗震性能

【中图分类号】：U443.361 【文献标志码】：A 【文章编号】：1008-3197（2024）06-38-03

【DOI编码】：10.3969/j.issn.1008-3197.2024.06.010

Analysis on the Difference in Seismic Performance Between Lead Core Isolation Rubber Bearings and High Damping Isolation Rubber Bearings

【Abstract】： This paper compares the physical parameters and mechanical properties of lead core isolation rubber bearings and high damping isolation rubber bearings， analyzes the advantages and disadvantages of the two types of bearings and their respective application ranges， and compares the seismic response results of the two types of bearings at different pier heights by establishing a finite element model. Through calculation and analysis， it is concluded that the two types of bearings can replace each other in mechanics.

【Key words】： lead core isolation rubber bearings；high damping isolation rubber bearings；seismic performance

铅芯隔震橡胶支座是在普通叠层橡胶支座的中心插入铅芯，通过铅芯产生的滞后阻尼的塑性变形来吸收能量，并可通过橡胶提供水平恢复力，以达到减小地震能量的目的[1]。（剩余2417字）