Optimization of Cable Tensioning in Cable-Stayed Bridges

被引：120

作者：

Janjic, D. ^{[1
]}

Pircher, M. ^{[2
]}

Pircher, H. ^{[1
]}

机构：

[1] TDV GesmbH, Graz, Austria

[2] Univ Western Sydney, Ctr Construct Technol, Penrith, NSW 1797, Australia

来源：

JOURNAL OF BRIDGE ENGINEERING | 2003年 / 8卷 / 03期

关键词：

Bridges; Cable-Stayed; Optimization; Tension;

D O I：

10.1061/(ASCE)1084-0702(2003)8:3(131)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

During the structural analysis of cable-stayed bridges, some specific problems arise that are not common in other types of bridges. One of these problem is the derivation of an optimal sequence for the tensioning of the stay cables. This paper describes a novel solution to this problem, the unit force method. The method takes into account all relevant effects for the design of cable-stayed bridges, including construction sequence, second-order theory, large displacements, cable sag and time-dependent effects, such as creep and shrinkage or relaxation of prestressing tendons. Information about the implementation of this method into a computer program is given, and an example of a practical application of this method concludes this paper. The method is not restricted to the design of cable-stayed bridges and may well be used for other structural applications in the future.

引用

页码：131 / 137

页数：7

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