中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (6): 1111-1114.DOI: 10.3969/j.issn.1674-0696.2013.06.03

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基于MATLAB 联合ANSYS 的斜拉桥恒载索力优化

刘益铭,刘大洋,刘山洪   

  1. 重庆交通大学土木建筑学院,重庆 400074
  • 收稿日期:2012-12-07 修回日期:2013-03-15 出版日期:2013-12-15 发布日期:2015-01-22
  • 作者简介:刘益铭(1987—),男,山东济南人,硕士研究生,主要从事桥梁设计理论方面的研究。E-mail:410891414@qq.com

Optimization of Cable Forces of Cable-Stayed Bridges Based on MATLAB and ANSYS Software under Dead Loads

Liu Yiming , Liu Dayang , Liu Shanhong   

  1. School of Civil Engineering & Architecture , Chongqing Jiaotong University , Chongqing 400074 , China
  • Received:2012-12-07 Revised:2013-03-15 Online:2013-12-15 Published:2015-01-22

摘要: 针对应用ANSYS进行斜拉桥恒载索力优化时,其优化算法所存在的不足,提出了一种MATLAB联合ANSYS 斜拉桥恒载索力优化方法。将MATLAB优化工具箱中的遗传算法作为主要优化程序调用ANSYS进行索力优化计 算,以改进ANSYS在斜拉桥恒载索力优化中的不足;应用此优化方法对一个密索斜拉桥算例进行恒载索力优化。 与ANSYS1阶优化结果相对比,该方法更有效、更实用。

关键词: 斜拉桥, 索力调整, 惩罚函数, 遗传算法

Abstract: There were some defects in the optimization algorithm , when ANSYS software was applied in the optimization of initial cable forces of cable-stayed bridges under dead loads. Based on the condition mentioned above , a new optimization method of initial cable forces of cable-stayed bridges , which combined MATLAB with ANSYS , was proposed. Genetic algorithm in MATLAB optimization toolbox was used as the main optimization program to make ANSYS carry out the optimization calculation , which could improve the defects of ANSYS in the optimization of initial cable forces of cable-stayed bridges under dead loads. Eventually , the proposed method was applied to the optimization of initial cable forces of one cable-stayed bridge. Comparing the results with those of ANSYS first-order optimization method , the results show that the proposed method is effective and practical.

Key words: cable-stayed bridge, cable force adjustment, penalty function method, genetic algorithm

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