鉛芯隔震橡膠支座與高阻尼隔震橡膠支座抗震性能差異分析

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【摘    要】：對鉛芯隔震橡膠支座與高阻尼隔震橡膠支座進(jìn)行了物理參數(shù)及力學(xué)性能的比較，分析了兩種支座的優(yōu)缺點(diǎn)及各自的適用范圍，通過建立有限元模型，比較了不同墩柱高度下兩種支座地震響應(yīng)結(jié)果，通過計(jì)算分析得出了兩種支座可以在力學(xué)上相互替代的結(jié)論。

【關(guān)鍵詞】：鉛芯隔震橡膠支座；高阻尼隔震橡膠支座；抗震性能

【中圖分類號】：U443.361 【文獻(xiàn)標(biāo)志碼】：A 【文章編號】：1008-3197（2024）06-38-03

【DOI編碼】：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

鉛芯隔震橡膠支座是在普通疊層橡膠支座的中心插入鉛芯，通過鉛芯產(chǎn)生的滯后阻尼的塑性變形來吸收能量，并可通過橡膠提供水平恢復(fù)力，以達(dá)到減小地震能量的目的[1]。（剩余2417字）