期刊论文

Parameter sensitivity analysis of long-span steel box composite girder cable-stayed bridge with unequal-height towers

中文

湖南城市学院学报(自然科学版)

1672-7304

2024

33

4

8-13

10.3969/j.issn.1672-7304.2024.04.0002

2024JJ7077:湖南省自然科学基金项目 23B0732:湖南省教育厅科学研究项目 22A0561:湖南省教育厅科学研究项目 22B0793:湖南省教育厅科学研究项目

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以一座主跨480 m的高低塔钢箱叠合梁斜拉桥为例,首先,采用Midas/Civil软件建立了斜拉桥施工全过程有限元模型;然后,研究了结构各构件的弹性模量、重量、无应力索长等设计参数变化对斜拉桥成桥状态下结构力学行为的影响...展开更多 以一座主跨480 m的高低塔钢箱叠合梁斜拉桥为例,首先,采用Midas/Civil软件建立了斜拉桥施工全过程有限元模型;然后,研究了结构各构件的弹性模量、重量、无应力索长等设计参数变化对斜拉桥成桥状态下结构力学行为的影响,并基于综合敏感因子量化了主梁线形、塔偏、索力以及主梁应力等结构响应对各设计参数的敏感程度;最后,研究了斜拉桥最大悬臂状态下端部竖向位移随温度...

Taking a steel box composite girder cable-stayed bridge with unequal-height towers with main span of 480m as an example,first,a finite element model of the entire construction process of the cable-stayed bridge was established by using Midas/Civil software.Then,the infl...MORE Taking a steel box composite girder cable-stayed bridge with unequal-height towers with main span of 480m as an example,first,a finite element model of the entire construction process of the cable-stayed bridge was established by using Midas/Civil software.Then,the influence of changes in design parameters such as elasti...