A nonlinear numerical scheme to simulate multiple wind effects on twin-box girder suspension bridges
A nonlinear numerical scheme to simulate multiple wind effects on twin-box girder suspension bridges
复制标题
模拟双箱梁悬索桥多重风效应的非线性数值方案
DOI：
10.1016/j.engstruct.2018.11.040
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发表时间：
2019-03
影响因子：
5.5
通讯作者：
Zhang Lihai
中科院分区：
文献类型：
--
作者：
Zhou Rui;Ge Yaojun;Yang Yongxin;Liu Shiyi;Du Yanliang;Zhang Lihai
The present study aims to investigate multiple wind effects on long-span twin-box girder bridges by developing a time-dependent nonlinear numerical scheme, which takes into account a range of aerodynamic forces, such as the stationary aerodynamic force, self-excited force, buffeting force and vortex-induced vibration (VIV) force. After calibration and validation, the developed scheme was implemented to investigate wind-induced behaviors of the Xihoumen Suspension Bridge. The results show that the developed scheme has the capability of simulating the nonlinear features of various types of bridge aerodynamic forces and can reproduced the flutter phenomenon from wind tunnel testing and the VIV phenomenon subject to field measurement. In addition, it predicts that, under the critical wind velocity (Ucr) of 95 m/s in smooth flow, the failure mode of the bridge can be defined as the disconnection of hangers at the 1/2L of the main span, while under the Ucrof 85 m/s in turbulence flow, the failure of the bridge can be described as multiple hangers fracture at the 3/4L of the main span with the symmetrical bending-torsional coupled oscillation. Besides, the vertical VIV of the bridge with the maximum amplitude of about 0.2 m and the 7th vertical mode belong to limit cycle oscillation.
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影响因子：
5.5
作者：
S. Miranda;L. Patruno;M. Ricci;F. Ubertini
通讯作者：
S. Miranda;L. Patruno;M. Ricci;F. Ubertini
DOI：
10.1061/(asce)0733-9399(2000)126:1(7
发表时间：
1999
期刊：
Journal of Engineering Mechanics-asce
影响因子：
--
作者：
Xinzhong Chen;M. Matsumoto;A. Kareem
通讯作者：
Xinzhong Chen;M. Matsumoto;A. Kareem
影响因子：
5.5
作者：
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通讯作者：
A. Casalotti;A. Arena;W. Lacarbonara
影响因子：
1.6
作者：
Yongxin Yang;T. Ma;Y. Ge
通讯作者：
Yongxin Yang;T. Ma;Y. Ge
DOI：
10.1016/j.jweia.2006.01.017
发表时间：
2006-05
影响因子：
4.8
作者：
G. Diana;F. Resta;M. Belloli;D. Rocchi
通讯作者：
G. Diana;F. Resta;M. Belloli;D. Rocchi