| 基于神经网络的钢管混凝土拱桥可靠度计算 |
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| 引用本文： | 余晓琳,颜全胜,李炳秋,丁发兴.基于神经网络的钢管混凝土拱桥可靠度计算[J].沈阳工业大学学报,2011,33(5):582-587. |
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| 作者姓名： | 余晓琳 颜全胜 李炳秋 丁发兴 |
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| 作者单位： | 华南理工大学土木与交通学院;中南大学土木建筑学院; |
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| 基金项目： | 国家自然科学基金资助项目(50808180) |
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| 摘 要： | 由于在大型复杂结构可靠度分析时存在的功能函数不能显式表达，因此采用基于神经网络的响应面法来研究大跨度钢管混凝土拱桥结构的可靠度.运用均匀设计方法确定试验样本点，进行确定性有限元分析，通过获得的训练样本进行神经网络训练，确定神经网络的结构和参数，并结合常规的可靠度分析方法在神经网络响应面上进行可靠度分析.计算结果表明，引入了均匀设计方法的神经网络可以很好地模拟复杂结构的真实响应，该方法运用于大跨度钢管混凝土拱桥结构的可靠度分析是可行的，且具有较高的效率和精度.
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| 关 键 词： | 神经网络 钢管混凝土 拱桥 拱肋 可靠度 均匀设计 响应面法 串联体系 |
Reliability calculation of concrete filled steel tubular arch bridge based on neural network |
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| YU Xiao-lin,YAN Quan-sheng,LI Bing-qiu,DING Fa-xing.Reliability calculation of concrete filled steel tubular arch bridge based on neural network[J].Journal of Shenyang University of Technology,2011,33(5):582-587. |
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| Authors: | YU Xiao-lin YAN Quan-sheng LI Bing-qiu DING Fa-xing |
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| Affiliation: | YU Xiao-lin1,YAN Quan-sheng1,LI Bing-qiu1,DING Fa-xing2(1.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China,2.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China) |
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| Abstract: | Since the performance function existing in the reliability analysis of large complex structures can not be expressed explicitly,the reliability of long-span concrete filled steel tubular arch bridge structure was studied with the response surface method based on neural network.The experimental sample points were determined with uniform design method,and the deterministic finite element analysis was carried out.The neural network training was conducted with the obtained training samples,and the structure and... |
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| Keywords: | neural network concrete filled steel tubular arch bridge arch rib reliability uniform design response surface method series system |
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