摘要
针对最新抗震规范GB50011—2010中所提出的钢支撑—混凝土框架结构体系,结合多级优化思想和SLP算法对其进行优化研究、以结构造价为优化目标函数,以每层构件的最优混凝土强度等级和各单根构件截面尺寸为优化变量,通过强度约束、施工构造约束等为约束条件对钢支撑—混凝土框架结构进行优化。用VB和FORTRAN语言编写了相应的优化程序并结合工程算例对程序的优化效果进行了验证。
In this paper,a method that combines the muhi-level method and the SLP arithmetic is proposed to solve the optimization design problem of concrete frames with steel braces,which is a structural type described the latest Chinese seismic code (GB50011-2010).The optimal section size and concrete grade were obtained by taking the cost as an objective function and concrete grade and unit section size as optimization variables.The constraint conditions include strength requirement and construction requirement.A program was written by the VB and FORTRAN to solve the optimization problem.The method was proved to be effective and correct.
出处
《结构工程师》
北大核心
2013年第5期34-40,共7页
Structural Engineers
关键词
钢支撑
混凝土框架
多级优化
SLP法
steel brace
concrete frame
multi-level optimization
SLP arithmetic