期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：4
页码：1-7
DOI：10.1088/1755-1315/304/4/042055
出版社：IOP Publishing
摘要：The number of super-long-span cable-stayed bridges over 800 meters is small, and the seismic damage data of such bridges are rare. The relevant research on seismic response and mechanism of seismic damage is still insufficient. Taking the Second Wuhu Yangtze River Bridge as the engineering background, the investigation of the fragility of super-long column cable-stayed bridge is carried out. The probabilistic seismic demand model (PSDM) is established using nonlinear time history analysis and taking account the uncertainty of the bridge model and the input earthquake. By comparing the fragility curves of the critical components and engineering demand parameters (EDPs), the failure rules and failure modes are explored, the vulnerability part and the failure mechanism of the component are investigated.
