钢框架结构可靠性计算与分析-工程力学专业论文.docxVIP

#Ⅱ南科技大学埘小学位论文计算替代结构有限元计算，再次进行基于响应面的蒙特卡罗法数值模 #Ⅱ南科技大学埘小学位论文 计算替代结构有限元计算，再次进行基于响应面的蒙特卡罗法数值模 拟，确定钢框架结构失效概率，并把其结果与传统的蒙特卡罗法的结 算结果进行对比，从计算结果可得基于响应面的蒙特卡罗法的计算精 度和计算效率都要优于传统的蒙特卡罗法。 6．分别以空间钢框架和平面钢框架为研究对象，进行两种结构 的可靠性计算和对比分析。通过计算结果对比可得，以空间模型所计 算的结构可靠性结果更接近规范所规定限值。提出对复杂结构的可靠 度计算方法的建议：以空间结构为计算模型，运用基于响应面的蒙特 卡罗法进行数值模拟计算可得出较好的计算效果。 关键词：强度，钢框架，蒙特卡罗，响应面法，ANSYS 摘要The 摘要 The computation and analysis of Steel frame construction ABSTRACT The teliability analysi S based on strength i S a main development aspect of constructiON’s reliability study．Thi S article aim s at the retiability analy si S and computation of steel frame con structi011，The main content s are as foll0WS： 1．S0me 1imitations of the Code for de sign 0f Steel structure S a re analyzed，and it i S sugge sted that structural de sign should aim at en suring the overall reliability rather than the individual membe rs． 2 The basi S principle，computati011 and structural statiC Strength of steel Structural reliability theO ry are studied；furthe rmo re，the artiCle car ried out the reliability analysi s and computation about structural strength． 3．The artiCIe studied two numerical analy si S method：Monte CarlO and respon se surface method，and their re sPectiVe characte ri Stic are anal yzed，moreove r，thi s pape r combined the Monte Cal]o method with re sponse su rface method to carry out reliability computation，the re sult s of which are app roximated to that of Monte C arl 0 method At the same time，thi S pape r studied the main facto rs whi Ch affect s the reliability of steel frame con struction sy stem，the Partial coefficient fo r re si stance，the Pa rtial COeffiCient fo r 10ad S and the stati stical paralneters of each random variable are determined acco rding to the p ractical engineering and code S． 4．Fi rst，ba sed Oil steel construction design code s，the paper u sing PKPM tO de sign a multilayer steel frame con struction，then，ba sed on 111 河南科技大学硕士学位论文FEM 河南科技大学硕士学位论文 FEM ANSYS，U Sing the APDL which pro