超静定型钢桁架优化设计的面积比法  

AREA RATIO METHOD OF OPTIMAL DESIGN FOR STATICALLY INDETERMINATE SHAPE STEEL TRUSS

作　　者：任治章[1] 司马玉洲[1] 温伟力[1] 赵冰[1] 陈孝珍[1] 

机构地区：[1]南阳理工学院土木工程系,河南南阳473006

出　　处：《力学与实践》2006年第3期49-52,共4页Mechanics in Engineering

基　　金：河南省自然科学基金项目(0524220068)资助.

摘　　要：满应力准则是对超静定型钢桁架进行优化设计的有效方法．但这种方法的主要缺点在于收敛速度很慢甚至不收敛,这给设计工作带来很大的不便．对问题进行了研究,在“型钢压杆稳定设计直接法”的基础上,提出了满应力优化设计的一种新方法——面积比法,有效地提高了设计过程的收敛速度,降低了设计成本,供有关结构设计人员参考．The rule of full stress is an efficient method in the optimal design for statically indeterminate shape steel truss. But the major shortcoming of this method is that the convergent speed is very slow. In this paper, a new area ratio method for the optimal design based on full stress is proposed on the basis of ＂the direct method of stability design for shape steel columns＂, in which the convergent speed of repeated calculations is greatly improved, and the design cost is effectively reduced.

关 键 词：型钢桁架 满应力 优化设计 面积比法 

分 类 号：TU391[建筑科学—结构工程]