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(1徐州工程學(xué)院土木工程學(xué)院, 徐州 221000;2國家網(wǎng)架及鋼結(jié)構(gòu)產(chǎn)品質(zhì)量監(jiān)督檢驗(yàn)中心, 徐州 221006)
[摘要]基于概率統(tǒng)計(jì)和最優(yōu)化理論,采用ANSYS軟件中的蒙特卡洛(Monte Carlo)數(shù)值方法,對在El Centro地震波作用下的某正放四角錐網(wǎng)架結(jié)構(gòu)進(jìn)行了可靠性及優(yōu)化分析,得到了結(jié)構(gòu)不同動(dòng)力學(xué)特性的靈敏度結(jié)果,提出了滿足結(jié)構(gòu)性能可靠性的優(yōu)化設(shè)計(jì)方案。研究結(jié)果表明,優(yōu)化后該網(wǎng)架結(jié)構(gòu)的安全可靠性得到了提高,為結(jié)構(gòu)的安全性指導(dǎo)和設(shè)計(jì)提供了理論依據(jù)。
[關(guān)鍵詞]抗震網(wǎng)架結(jié)構(gòu); 蒙特卡洛法; 靈敏度; 可靠性優(yōu)化分析
中圖分類號(hào):TU356 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1002-848X(2014)04-0050-04
Reliability analysis and optimization design of aseismic grids structure
Zhi Youhai1, Shi Xiangping1, Xu Juehui2, Yin Huiguang1, Xie Dong2
(1 Civil Engineering Department, Xuzhou Institute of Technology, Xuzhou 221000, China; 2 National Grid and Steel Product Quality Supervision and Inspection Center, Xuzhou 221006, China)
Abstract: Based on the probability statistics and optimization theory, the Monte Carlo method was used to carry out reliability and optimization analysis to investigate square pyramid space grids structure under El Centro seismic waves. The different sensitivities of dynamic characteristics were presented. Structural optimization design method, which fulfills the structure reliability was put forward. The results show that the safe reliability of optimized space grids is improved, which supplies a theoretical basis for safety instruction and design.
Keywords: aseismic grids structure; Monte Carlo method; sensitivity; reliability optimization analysis
*住房和城鄉(xiāng)建設(shè)部項(xiàng)目(2011-K3-3),高??蒲许?xiàng)目(10KJD560003),校級(jí)課題項(xiàng)目(XKY2010211)。
作者簡介:智友海,博士,副教授,Email:zhi@mail.nwpu.edu.cn。
參考文獻(xiàn)
[1]歐進(jìn)萍,關(guān)新春.土木工程智能結(jié)構(gòu)體系的研究與發(fā)展[J].地震工程與工程振動(dòng),1999,19(2):21-28.
[2]王孟鴻,丁思洋,秦彥龍. 網(wǎng)架結(jié)構(gòu)關(guān)鍵設(shè)計(jì)對策的分析研究[J].建筑結(jié)構(gòu),2011,41(4): 29-30.
[3]曹樹謙,張文德,蕭龍翔. 振動(dòng)結(jié)構(gòu)模態(tài)分析——理論、實(shí)驗(yàn)與應(yīng)用[M]. 天津:天津大學(xué)出版社,2001.
[4]宗周虹,任偉新,阮毅.土木工程結(jié)構(gòu)損傷診斷技術(shù)研究[J].土木工程學(xué)報(bào),2006,36(5):65-69.
[5]AFTAB MUFTI A. Structural health monitoring of innovative canadian civil engineering structures[J]. Structural Health Monitoring,2002,1(1):89-103.
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