[1]孙得璋,黄勇,谢光明,等.中墩固结曲线桥梁振动台试验研究[J].自然灾害学报,2021,30(05):155-162.[doi:10.13577/j.jnd.2021.0514]
 SUN Dezhang,HUANG Yong,XIE Guangming,et al.Shaking table test of a curved continuous girder bridge with the middle pier consolidation[J].,2021,30(05):155-162.[doi:10.13577/j.jnd.2021.0514]
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中墩固结曲线桥梁振动台试验研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
30
期数:
2021年05期
页码:
155-162
栏目:
出版日期:
2021-10-28

文章信息/Info

Title:
Shaking table test of a curved continuous girder bridge with the middle pier consolidation
作者:
孙得璋1 黄勇1 谢光明1 孙柏涛1 黄思凝2
1. 中国地震局地震工程与工程振动重点实验室, 中国地震局工程力学研究所, 黑龙江 哈尔滨 150080;
2. 中国石油大学(华东)储运与建筑工程学院, 山东 青岛 266580
Author(s):
SUN Dezhang1 HUANG Yong1 XIE Guangming1 SUN Baitao1 HUANG Sining2
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. College of Pipeline and Civil Engineering, China University Petroleum, Qingdao 266580,
关键词:
汶川地震曲线桥梁中墩固定振动台试验扭矩
Keywords:
Wenchuan Earthquakecurved girder bridgesmiddle pier consolidationshaking table testtorque
分类号:
TU4;X4
DOI:
10.13577/j.jnd.2021.0514
摘要:
2008年的汶川Ms8.0级地震中有相当多的曲线桥梁发生破坏,比如百花大桥、回澜立交桥、小黄沟桥等等,为了研究曲线桥梁的震害破坏机理,本文以一中墩固定的两跨曲线桥梁为研究对象,对其进行缩尺的振动台试验研究。分别采用El Centro和Taft波对曲线桥梁进行三向地震动激励。通过试验研究发现,7度基本工况时,中墩墩柱两端出现水向裂缝,当7度罕遇时,中墩墩柱两端出现斜向裂缝,当8度罕遇工况时,混凝土出现压碎现象。从结构周期上看,模型的一阶频率逐渐下降,尤其前几个工况下降较快,说明模型刚度退化较快。1#墩和3#墩处支座残余滑动方向具有一定规律性,即绕着曲线中心,逆时针转动。

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备注/Memo

备注/Memo:
收稿日期:2021-01-19;改回日期:2021-03-20。
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(2018A02);国家自然科学基金项目(51678544)
作者简介:孙得璋(1982-),男,副研究员,博士,主要从事桥梁抗震、桥梁多灾害设计研究.E-mail:sundz@iem.ac.cn
通讯作者:黄勇(1969-),男,副研究员,博士,主要从事桥梁抗震、振动方面的研究.E-mail:jeetchen_123@hotmail.com
更新日期/Last Update: 1900-01-01