基于遗传算法的型钢混凝土框架理想失效模式优化  

OPTIMIZATION OF THE IDEAL FAILURE MODEL OF SRC FRAME BASED ON GENETIC ALGORITHM

作　　者：郑山锁[1] 杨威[1] 孙龙飞[1] 童军福[1] 田微[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《工业建筑》2015年第7期153-158,共6页Industrial Construction

基　　金：国家科技支撑计划(2013BAJ08B03);长江学者和创新团队发展计划;国家自然科学基金项目(50978218;51108376);高等学校博士学科点专项科研基金项目(20106120110003);陕西省科研项目(2012K12-03-01;2010JK633;2011KTCQ03-05)

摘　　要：基于Open SEES建立型钢混凝土框架理想失效模式(梁铰破坏机制)状态下梁、柱参数关系的数学约束表达式,满足构件几何尺寸及JGJ 138—2001《型钢混凝土结构设计规范》要求的约束条件,通过ANSYS建立被优化结构的参数化模型,调用遗传算法对结构进行工程造价最小化、失效模式理想化多目标优化。通过优化算例叙述具体优化过程,并将优化结果与原方案进行经济效益对比分析。最后探讨优化模型权重系数、遗传算法参数设置对优化结果的影响。Based on the OpenSEES software, the expressions of the constraints between the parameters of beam and column under the desired failure mode of SRC frame structure （beam hinge failure mechanism） were set up. The optimal objective of the parametric model was realized by a program ANSYS and the genetic algorithm was chosen to optimize the multi-objective optimization model of the minimum cost and ideal failure mode. The specific process of optimization would be given through an engineering example, meanwhile the comparison and analysis of optimization results with original scheme would be made on economic benefits. At last, the effect of weighting coefficient and genetic algorithm parameter settings on the optimization result of optimal model was discussed.

关 键 词：型钢混凝土 理想失效模式 遗传算法 多目标优化 

分 类 号：TU398.9[建筑科学—结构工程]