| 基于遗传算法进行张弦梁结构索力识别 |
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| 引用本文： | 张宇鑫,李国强,刘海成.基于遗传算法进行张弦梁结构索力识别[J].哈尔滨工业大学学报,2009,41(4):177-180. |
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| 作者姓名： | 张宇鑫 李国强 刘海成 |
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| 作者单位： | 张宇鑫,ZHANG Yu-xin(上海师范大学,建筑工程学院,上海,201418);李国强,LI Guo-qiang(同济大学,土木工程学院,上海,200092);刘海成,LIU Hai-cheng(沈阳建筑大学,土木工程学院,沈阳,110168)
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| 基金项目： | 国家自然科学基金，上海市科技启明星计划，上海市优秀青年教师后备人选自选课题 |
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| 摘 要： | 为识别张弦梁结构索力大小,提出了一种基于静力检测技术的索力识别方法.基于静力检测技术,定义了张弦梁结构索力识别的一般数学模型.通过分析张弦梁结构的整体受力特征,基于有限元方法提出了适用于张弦梁结构索力识别的识别模型.运用改进的遗传算法寻求问题的全局最优解,只需若干点位移实测值便可实现多个索段索力的同时识别.并编制了通用有限元计算程序,数值模拟算例验证了方法的可行性.
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| 关 键 词： | 张弦梁 索力 识别 遗传算法 |
Identification of cable tension of beam string structures based on genetic algorithm |
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| ZHANG Yu-xin,LI Guo-qiang,LIU Hai-cheng.Identification of cable tension of beam string structures based on genetic algorithm[J].Journal of Harbin Institute of Technology,2009,41(4):177-180. |
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| Authors: | ZHANG Yu-xin LI Guo-qiang LIU Hai-cheng |
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| Affiliation: | 1.School of Architecture and Civil Engineering,Shanghai Normal University,Shanghai,201418,China; 2.School of Civil Eng.,Tongji University,Shanghai,200092,China;3.School of Civil Engineering,Shengyang Jianzhu University,Shengyang,110168,China;) |
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| Abstract: | To identify the cable tension of beam string structure(BSS),an identification method based on static measurement was introduced in this paper.First,a mathematical model was built up for the identification of cable tension of BSS based on static measurements.Then by analyzing mechanical characteristics of BSS,a simple and available identification model was put forward based on finite element method.By using genetic algorithms to get the optimum solution of the model,multiple cable tension values can be obtained with only a few sensors.The effectiveness of the method was verified by compiling finite element program and numerical examples. |
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| Keywords: | beam string structure cable tension identification genetic algorithm |
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