[1]崔瑶,刘洪滔,高晓玉.不同减隔震措施下平板支座抗震性能试验研究[J].地震工程与工程振动,2019,39(01):180-188.[doi:10.13197/j.eeev.2019.01.180.cuiy.021]
 CUI Yao,LIU Hongtao,GAO Xiaoyu.Experimental study on seismic behavior of roof joint with different seismic isolation measure[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(01):180-188.[doi:10.13197/j.eeev.2019.01.180.cuiy.021]
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不同减隔震措施下平板支座抗震性能试验研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年01
页码:
180-188
栏目:
论文
出版日期:
2019-02-28

文章信息/Info

Title:
Experimental study on seismic behavior of roof joint with different seismic isolation measure
作者:
崔瑶12 刘洪滔2 高晓玉2
1. 中国地震局 工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;
2. 大连理工大学 海岸和近海工程国家重点实验室, 辽宁 大连 116024
Author(s):
CUI Yao12 LIU Hongtao2 GAO Xiaoyu2
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technolo
关键词:
平板支座减隔震措施混凝土边距抗震性能试验研究
Keywords:
roof jointseismic isolation measuresedge distanceseismic performanceexperimental study
分类号:
TU391
DOI:
10.13197/j.eeev.2019.01.180.cuiy.021
摘要:
为探究不同减隔震措施对短边距混凝土网架平板支座的抗震性能和破坏模式的影响,分别针对不同混凝土边缘距离以及采用不同减隔震措施的四个平板支座缩尺试件进行拟静力加载试验,对平板支座破坏模式、滞回曲线、箍筋应变进行分析。试验结果表明:平板支座的运动伴随着平动和转动。当混凝土边距不足时,边缘混凝土在压剪作用下,会发生冲切破坏。开长孔支座能较好的释放水平位移,并且对锚栓约束较弱,使其受力较小,从而减轻了边缘混凝土的受力。对采用橡胶垫板的支座,混凝土边缘未发生破坏,原因是橡胶垫具有良好的变形能力,可以释放支座的位移和转角,使得边缘混凝土受力较小。因此,针对混凝土边缘距离较短的平板支座节点,为防止混凝土发生边缘破坏,可采用开长孔支座,但需要对孔长进行合理的设计。采用橡胶垫支座也可避免混凝土发生边缘破坏,橡胶垫板可按照我国相关设计规范进行设计。
Abstract:
In order to investigate the effect of different seismic isolation measures on the seismic performance and failure modes of roof joint with short edge concrete, four specimens with different concrete edge distances and different seismic isolation measures were designed. Quasi-static loading tests were carried out to analyse the failure modes, hysteresis curves, and stirrup strains of roof joint. The test results show that the motion of roof joint is accompanied by the translational motion and rotation. If the edge distance of concrete is too small, edge concrete will be punched and destroyed under pressure and shear force. The roof joint with loose hole of base plate can release the horizontal displacement of the roof joint. The stress of anchor rod with loose hole of base plate is smaller, thereby reducing the edge damage of the concrete. The edge concrete was excellent without damage if roof joint using rubber bearing. The reason is that the rubber bearing can release the displacement and rotation of the roof joint, and the stress of edge concrete is small. For the roof joint with small edge distance of concrete, the hole length of base plate can be reasonably designed in order to prevent edge failure of concrete. And rubber bearings can also be used, which can be carried out in accordance with relevant design specifications in China.

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备注/Memo

备注/Memo:
收稿日期:2018-05-10;改回日期:2018-08-15。
基金项目:中国地震局工程力学研究所基本科研业务费专项资助项目(2017D03);国家自然科学基金项目(51678106)
作者简介:崔瑶(1983-),女,副教授,博士,主要从事钢结构抗震性能研究.E-mail:cuiyao@dlut.edu.cn
更新日期/Last Update: 1900-01-01