基于ANSYS的平面框架结构位移可靠度分析  

The Analysis of Plane Frame Structure Displacement Reliability Based on the ANSYS

作　　者：李远瑛[1] 张德生[1] 

机构地区：[1]嘉应学院土木工程学院,广东梅州514015

出　　处：《湘潭大学自然科学学报》2011年第2期45-49,共5页Natural Science Journal of Xiangtan University

基　　金：华南理工大学亚热带建筑科学国家重点实验室资助项目(2008ZC21);国家科技支撑计划子课题(2006BAJ01B07)

摘　　要：为研究框架结构位移可靠度,基于蒙特卡罗法和响应面法的基本原理,利用ANSYS有限元分析软件对一榀三跨十二层框架在水平荷载作用下进行了位移可靠度分析.计算结果表明,结构顶层最大水平位移利用蒙特卡罗法和响应面并结合蒙特卡罗法计算的失效概率较为接近;结构顶层最大水平位移的概率分布近似按极值I型分布;在设计过程中要注意截面尺寸对结构位移的影响.ANSYS分析结构可靠度速度较快,数据合理,可为复杂结构的可靠性分析提供参考.In order to research the frame structural displacement reliability,base on the basic principle of the Monte Carlo method and the response surface method,the displacement reliability analysis of the plane frame with there spans,twelve stories under horizontal loads was analyzed by using the finite-element analysis software of ANSYS.The calculation results showed that the failure probability of the maximum horizontal displacement of structure top storey by using the Monte Carlo method and by using response surface-Monte Carlo method was near.The probability distribution of the maximum horizontal displacement of the top structure was close to the extremum I.The section size on the structural displacement effect should be noted in the design process.The calculation speed of the structure reliability analysis by using ANSYS was faster,the data was reasonable,and the method provided the reference for complex structure reliability analysis.

关 键 词：ANSYS 平面框架结构 位移 可靠度 

分 类 号：TU311.2[建筑科学—结构工程]