Geometrical non-linear characteristic of flexible suspension bridge

被引：0
|
作者：
Cao, Guohui [1 ]
Hu, Jiaxing [2 ]
Zhang, Kai [1 ]
Liu, Chao [1 ]
机构：
[1] College of Civil Engineering, Hunan City University, Yiyang 413000, China
[2] College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411105, China
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2014年 / 45卷 / 02期
关键词：
The spatial nonlinear analysis of structural performance of the suspension bridge was carried out by using finite element program. Then; through the static loading test; the measured values of displacement were compared with the numerical results. The results show that the measured values are close to the simulation values; thus the finite element analysis method can accurately simulate the stress state; and it has high reliability in evaluating the mechanical properties of the flexible suspension bridge. All measured values are smaller than the simulation values; which indicates that the main cable has good mechanical properties. The main cable sag increment basically has linear relationship with the increment of mid-span loading and tension from 3L/8 and 5L/8 to L/2 section; with the geometric nonlinear characteristic being not outstanding. The geometric nonlinear characteristic is more outstanding from 3L/8 and 5L/8 to the end sections of the main cable. The mid-span loads and tension regarded when increasing unit sag gradually reduce in sections near L/4 and 3L/4 and gradually increase in sections near L/8 and 7L/8 and almost equal in sections near L/2; 3L/8; and; 5L/8;
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页码：615 / 621
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