| 基于Matlab优化工具箱对钢管混凝土轴压短柱的可靠度分析 |
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| 引用本文： | 蔡小萍,陈梦成. 基于Matlab优化工具箱对钢管混凝土轴压短柱的可靠度分析[J]. 南昌大学学报(工科版), 2006, 28(3): 303-306 |
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| 作者姓名： | 蔡小萍 陈梦成 |
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| 作者单位： | 华东交通大学,土木工程学院,江西,南昌,330013;华东交通大学,土木工程学院,江西,南昌,330013 |
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| 摘 要： | 从可靠度指标β的几何意义出发,将服从任意分布的随机变量Xi映射为标准正态随机变量Yi,建立在标准正态空间中求解β的优化模型。利用M atlab优化工具箱,对《钢管混凝土结构与设计规程》CECS28:90(1992)中轴压短柱承载力公式进行了可靠度分析并与JC法计算结果进行了比较,结果表明,本文计算的可靠指标与JC法计算可靠指标一致,且计算简便快捷.
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| 关 键 词： | 优化工具箱 钢管混凝土 轴压短柱 可靠度 |
| 文章编号： | 1006-0456（2006）03-0303-04 |
| 收稿时间： | 2006-04-14 |
| 修稿时间： | 2006-04-14 |
Reliability Analysis of Concrete Filled Steel Tubular Axial Compressive Short Conlumn Based on Matlab's Optimization Tool Box |
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| CAI Xiao-ping,CHEN Meng-cheng. Reliability Analysis of Concrete Filled Steel Tubular Axial Compressive Short Conlumn Based on Matlab's Optimization Tool Box[J]. Journal of Nanchang University(Engineering & Technology Edition), 2006, 28(3): 303-306 |
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| Authors: | CAI Xiao-ping CHEN Meng-cheng |
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| Abstract: | Based on reliability index geometry significance,stocha stic variable X_i with any probability distribution function is ma pped to stochastic variable Y_i with standard normal distribution function and the optimization model of solving reliability index is founded.The reliability of the axial compressive short column formulas adopted in the "Con crete filled steel tubular structure and code for design" CECS28:90(1992) is a nalyzed with the Matlab's optimization tool box,and is compared with that by J C method.The result shows that reliability index calculated by the proposed met hod in this paper and by JC method agree well and the computing process is quick and efficient. |
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| Keywords: | optimization tool box concrete filled steel tube axial compression short column reliability |
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