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CFRP加固RC梁的模糊随机可靠度数值模拟 被引量：3

Numerical Simulation for Fuzzy-random Reliability of CFRP-Strengthened RC Beams
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摘要 CFRP加固RC结构可靠度的不确定性,不仅要考虑随机性,也要考虑模糊性。本文根据模糊数学与可靠性理论,研编了引入模糊示性函数的Monte Carlo计算程序,通过试验讨论模糊示性函数的确定方法。利用Matlab软件,直接产生随机变量数组,解决Monte Carlo抽样困难。CFRP加固梁破坏试验获得全部随机变量的统计参量。编制基于Matlab的Monte Carlo计算程序,完成了对CFRP加固RC梁抗弯模糊随机可靠度数值模拟,模拟计算结果得到传统FOSM法验证。 The Monte-Carlo numerical program introducing fuzzy indicative function was compiled based on the fuzzy mathematics and reliability theory,The determination method of fuzzy indicative function was discussed via the experiments.The randomn variable arrays were produced directly with Matlab.The statistic parameters of stochastic variables were obtained in the damage experiments of CFRP strengthened RC beams.The numerical simulation of fuzzy-random reliability of RC beams strengthened with CFRP was completed with Monte Carlo method and the simulating results were verified with FOSM method.
作者 卢少微 谢怀勤
机构地区 沈阳航空工业学院 哈尔滨工业大学
出处 《应用力学学报》 CAS CSCD 北大核心 2009年第1期181-185,共5页 Chinese Journal of Applied Mechanics
基金 黑龙江省自然科学基金(20002.E01-10) 哈尔滨市科技攻关项目(0111211107)
关键词 碳纤维复合材料 加固 钢筋混凝土梁 模糊随机可靠度 蒙特卡罗法 Matlab carbon fiber reinforced plastics(CFRP),strengthen,reinforced concrete(RC)beams,fuzzy-random reliability,monte carlo,Matlab
分类号 TU311.2 [建筑科学—结构工程]
  • 相关文献

参考文献6

  • 1Fabio B, Franco B, Pier G M. Fuzzy reliability analysis of concrete structures[J]. Computers and structures, 2004, 82: 1033-1052.
  • 2Jiang Q, Chen C. A numerical algorithm of fuzzy reliability [J]. Reliability Engineering and System Safety, 2003, 80: 299-3O7.
  • 3卢少微,谢怀勤.Monte Carlo法模拟CFRP加固梁的抗弯可靠度[J].武汉理工大学学报,2005,27(12):45-48. 被引量：5
  • 4Lu S, Xie H. Real-time Monitoring the CFRP-strengthened RC Beams with FBG Sensors Embedded in CFRP Sheets[J]. Construction and Building Materials, 2007, 21 (9) : 1839- 1845.
  • 5Arya C, Clarke J L, Kay E A. TR 55: Design guidance for strengthening concrete structures using fibre composite materials: a review[J]. Engineering Structures, 2004, 24: 889- 900.
  • 6Huy P, Riadh A. Assessment of available prediction models for the strength of FRP retrofitted RC beams[J]. Composite structures, 2004, 66 : 601-610.

二级参考文献7

  • 1徐港,王青,王永明.多种结构可靠度计算方法的快速实现[J].建筑技术开发,2004,31(6):7-8. 被引量：3
  • 2王文炜,赵国藩,黄承逵,任海东.碳纤维布加固已承受荷载的钢筋混凝土梁抗弯性能试验研究及抗弯承载力计算[J].工程力学,2004,21(4):172-178. 被引量：89
  • 3Disciuva M,Lomario D.A Comparison Between Monte Carlo and FORMs in Calculating the Reliability of a Composite Structure[J].Composite Structures,2003,(59):155～162.
  • 4Melehers R E,Ahammed M.A Fast Approximate Method for Parameter Sensitivity Estimation in Monte Carlo Structural Reliability[J].Computers and Structures,2004,82:55～61.
  • 5Ashour A F,El-Refaie S A,Garrity S W.Flexural Strengthening of RC Continuous Beams Using CFRP Laminates[J].Cement & Concrete Composites,2004,26:763～775.
  • 6Arya C,Clarke J L,Kay E A.Design Guidance for Strengthening Concrete Structures Using Fibre Composite Materials:A Review[J].Engineering Structures,2004,24:889～900.
  • 7Huy Pham,Riadh Al-Mahaidi.Assessment of Available Prediction Models for the Strength of FRP Retrofitted RC Beams[J].Composite Structures,2004,66:601～610.

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应用力学学报
2009年 第1期

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