改进力密度法在悬索结构找形中的应用  

THE MODIFIED FORCE-DENSITY METHOD FOR FORM-FINDING OF PRETENSIONED CABLE ROOFS

作　　者：曾小飞[1] 叶继红[1] 

机构地区：[1]东南大学土木工程学院,南京210018

出　　处：《工业建筑》2006年第2期72-74,共3页Industrial Construction

基　　金：江苏省"六大人才高峰"项目(建筑B类)

摘　　要：结合工程需要对普通力密度法进行了改进,给出了在给定控制条件下悬索结构的力密度找形迭代公式和迭代策略,形式简单明了。通过对若干典型工程算例的找形计算表明,改进的算法具有收敛精度高,计算能力强,适用范围广等优点,是一种很好的悬索结构成形算法。In order to meet the needs of the practical structural design, the iterative formula and tactics for the form finding of cable roofs are proposed. It is called as the modified force-density method. The method is verified by some benchmark problems and big projects. Numerical examples show that the modified method is very simple and efficient. It can be used to find the shape of various pretensioned cable roofs.

关 键 词：改进力密度法 悬索结构 找形分析 

分 类 号：TU399[建筑科学—结构工程]