|本期目录/Table of Contents|

[1]薛成凤,刘来君,武芳文.大跨度混凝土梁斜拉桥横向地震作用易损性分析*[J].地震研究,2017,40(01):65-69.
　XUE Chengfeng,LIU Laijun,WU Fangwen.Fragility Analysis of Long-span Concrete Cable-stayed Bridge under Lateral Seismic Loads[J].Journal of Seismological Research,2017,40(01):65-69.
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大跨度混凝土梁斜拉桥横向地震作用易损性分析*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
40
期数:
2017年01
页码:
65-69
栏目:
出版日期:
2017-03-20

文章信息/Info

Title:
Fragility Analysis of Long-span Concrete Cable-stayed Bridge under Lateral Seismic Loads
作者:
薛成凤; 刘来君; 武芳文
长安大学 公路学院,陕西 西安 710064
Author(s):
XUE Chengfeng; LIU Laijun; WU Fangwen
School of Highway,Chang'an University,Xi'an 710064,Shaanxi,China
关键词:
斜拉桥;  易损性分析;  损伤标定;  超越概率
Keywords:
cable-stayed bridge;  vulnerability analysis;  injury calibration;  exceedance probability
分类号:
U448.27
DOI:
-
摘要:
以某大跨斜拉桥为例,利用SAP2000建立有限元模型,基于结构性能目标,探讨桥梁构件损伤标定方法,并采用IDA的倒塌易损性分析方法,对该斜拉桥进行横向的地震易损性分析,最后采用能力需求比模型法拟合出主塔的易损性曲线。研究结果表明,在横向地震作用下,索塔墩顶截面、上塔柱底部成为易损截面的概率增大,连接主梁的中塔柱底部截面出现完全破坏的概率增大。
Abstract:
In this paper,based on a long-span cable-stayed bridge,a finite element model is established by using SAP2000.Based on structural objectives,we studied on calibration method for bridge structure damage.By using collapse vulnerability analysis method which is based on IDA,we analyze the lateral seismic fragility of cable-stayed bridge.Finally,the seismic fragility curves of the main tower can be fitted by using capacity requirement modeling method.The research indicate that under the transverse seismic waves,towers became more vulnerable at the section of top and the bottom of upper tower column.The bottom of mid tower connecting the girder tends to be completely destroyed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-11-25
基金项目:国家自然科学基金(51408040)资助.

更新日期/Last Update: 2017-03-20