Deployment simulation of cable-strut structures considering cable sliding  

作　　者：CAI JianGuo FENG Jian WANG Kai 

机构地区：[1]Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China [2]National Engineering Research Center for Prestress,Southeast University,Nanjing 210096,China

出　　处：《Science China(Technological Sciences)》2012年第12期3263-3269,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 50908044, 51278116);Jiangsu "Six Top Talents" Program (Grant No. 07-F-008);Scientific Research Foundation of Graduate School of Southeast University (Grant No. YBJJ0817);a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

摘　　要：The influence of cable sliding on the deployment of foldable cable-strut structures was studied in this paper. In order to develop an effective program for the cable sliding program, two-node cable element based on the analytical solution of elastic cate- nary was studied. Then the cable sliding stiffness was defined as the ratio of the variation of the cable force to the variation of the cable length. To validate the proposed numerical method, analyses of two examples given in references were carried out. The results show that the method given in this paper is accurate and effective, which can be used to model the cable sliding in cable structures. Finally, the deployment process of a foldable cable-strut structure, which is composed of four-bar linkages and cables, was discussed. It can be found that the effect of cable sliding on the behavior of cable-strut structures is significant. The length changes of active cables are smaller when the cable sliding is considered. Moreover, the nodal coordinate changes also become faster when the numerical model is with cable sliding.

关 键 词：DEPLOYMENT elastic catenary cable-strut structures cable sliding nonlinear analysis 

分 类 号：TU323[建筑科学—结构工程] U653.95[交通运输工程—港口、海岸及近海工程]