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《Journal of Lanzhou University of Technology》 2009-03
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The influence of elastic supporting column on integral stressed membrane structure

WANG Xiu-li,LI Yong-xiang,WEI Biao,XU Ying-lei(College of Civil Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China)  
In analysis of cable-membrane structure,the membrane boundary was regarded as fixed and the interaction between supporting structure and membrane structure as well as the node displacement of the supporting structure were not considered,making the form found different from the actual one,namely lacking of analysis of integral stressing model.The process of interaction between concrete support pillars and membrane structure was analyzed with ANSYS simulation.Meanwhile,the influence of supporting structure on the stress of membrane structure and natural frequency was considered.Result showed that,during the process of support elevation(prestressing),the membrane structure was consistent with the principle that the prestress was identical everywhere in the membrane.The unequal distribution of stress caused by "edge effect" could properly be adjusted by means of setting supporting column.
【Fund】: 国家自然科学基金(50678078)
【CateGory Index】: TU38
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