Seismic Response Analysis of a Large-Span Isolated Structure Equipped with TNRB-DSBs and LRBs

被引：4

作者：

Gu, Zhenyuan ^{[1
]}

Feng, Lu ^{[1
]}

Sun, Ying ^{[1
]}

Gong, Hai ^{[2
]}

Zhu, Chenhui ^{[1
]}

Chen, Zhijun ^{[1
]}

Dai, Jiaqi ^{[1
]}

Hao, Fangzheng ^{[1
]}

Zhong, Xinting ^{[1
]}

Qian, Wangping ^{[1
,3
]}

机构：

[1] Nantong Univ, Coll Transportat & Civil Engn, Nantong 226019, Peoples R China

[2] Nantong Prefabricated Bldg & Intelligent Struct Re, Nantong 226014, Peoples R China

[3] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Peoples R China

来源：

BUILDINGS | 2023年 / 13卷 / 05期

基金：

中国国家自然科学基金;

关键词：

large-span structure; isolation; thick rubber bearing; vertical isolation device; bearing performance test; seismic response analysis;

D O I：

10.3390/buildings13051288

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study focused on comprehensively analyzing the construction, mechanism, and design theory of the Thick Rubber Bearing-Disk Spring Bearing (TNRB-DSB) system, with the aim of evaluating its isolation effect. Mechanical tests were conducted to examine the dynamic characteristics of large-span isolated structures equipped with TNRB-DSBs, and laminated rubber bearings (LRBs), as well as the dynamic responses of non-isolated structures and large-span horizontal isolated structures equipped with natural rubber bearings (NRBs) and LRBs, under various seismic excitations. Finite element software was utilized to compare the behaviors of these structures. The study revealed that the large-span isolated structure equipped with TNRB-DSBs and LRBs had a vertical natural vibration period 1.23 times as long as that of the isolated structure with NRBs and LRBs, and 4.27 times as long as that of the non-isolated structure. The TNRB-DSB system demonstrated good vertical and horizontal isolation capabilities, which compensated for the isolation limitations of other rubber bearings to some extent.

引用

页数：19

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