滑动索系结构的统一分析方法——冷冻-升温法  

AN UNIFIED ANALYTICAL METHOD FOR GLIDING CABLE STRUCTURESFROZEN-HEATED METHOD

作　　者：郭彦林[1] 崔晓强[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《工程力学》2003年第4期156-160,共5页Engineering Mechanics

摘　　要：结构工程中存在大量的滑动索系结构,但目前还没有有效的计算方法求解这种结构的内力和变形,因而使得这种结构的理论研究滞后于它的工程应用。提出了一种新颖、有效、通用的处理方法,称为冷冻-升温法(FHM),能有效地解决采用钢索滑移节点对计算结构内力和变形存在的困难。通过对不同算例进行分析,说明了这种方法的通用性和有效性。The gliding cable structures have found its application in many practical structures, but it is difficult or impossible to compute its deformations and internal forces by using traditional analytical method because of its relatively gliding at a common intersectional joint that connects two different intersectional structural components. This paper presents a totally new, efficient and unified structural analytical method for solving the internal forces and deformation of an engineering structure with gliding cable elements. The method, named as the frozen-heated method is to employ the two virtual temperature loads that are respectively imposed on two different intersectional structural components. Several numerical examples are presented for verifying the validity and efficiency of the frozen-heated method.

关 键 词：滑动索系结构 冷冻-升温法 虚拟温度荷载 协调条件 

分 类 号：TU311.4[建筑科学—结构工程]