Calculation of Cable Force for Long-Span Rib Arch Bridge Construction Under Seasonal Ambient Temperature

被引：0
|
作者：
Tian, Weifeng [1 ,2 ]
Zhou, Shuixing [1 ]
Saeed, Ayad Thabit [2 ]
机构：
[1] Chongqing Jiaotong Univ, Sch Civil Engn & Architecture, Chongqing 400074, Peoples R China
[2] Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China
来源：
APPLIED MATERIALS AND ELECTRONICS ENGINEERING, PTS 1-2 | 2012年 / 378-379卷
关键词：
Non-framework cable hoisting erection method; Long-span arch rib bridge; Cable force; Seasonal ambient temperature; Unstressed state control method;
D O I：
10.4028/www.scientific.net/AMR.378-379.341
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Calculation of cable force under seasonal ambient temperature is the key and difficult problem in the construction of long-span rib arch bridge. It affects the final cable forces and deformations of arch rib after arch closure. Unstressed state control method is introduced in the construction of Daning River Bridge; unstressed qualities of ribs and unstressed length of cables can be obtained by optimization analysis of the maximum cantilever state in construction. According to unstressed state control method, the cable forces of each segment were calculated using the forward-iteration method. These results offer the basis for construction control, and guarantee the arch rib line and cable forces to meet the design requirements, and an arch closure with high precision.
引用
收藏
页码：341 / +
页数：2
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