福州大学学报（自然科学版）2017，Vol.45Issue(2)：151-158,8.DOI:10.7631/issn.1000-2243.2017.02.0151
多重四边环索-张弦穹顶屋盖索力张拉方案比选
Comparativeanalysis on cable tensioning scheme of multiple square loops-string dome
摘要
Abstract
Multiple square loops-string dome ( MSLSD) has quite various mechanics under different ca-ble tensioning sequences. In order to optimize the cable tensioning sequences, the first MSLSD project that is Fuzhou Olympics Gymnasium was taken as research background. And the investigations are car-ried on to proposed two different cables tensioning schemes. Based on the 3D finite-element model, the internal forces and deformations of the MSLSD under different cables tensioning schemes are discussed. The process of cable tensions is simulated by cooling method. The analysis results shows that the roof in-ternal forces and deformation during cable tensioning stage for two schemes are quite different, although the final results are nearly the same. During the tensioning process, roof deformation and internal force of grillage girder are obviously less for the 1st tensioning schemes. Therefore, considering the safety dur-ing construction, the 1st tensioning schemes are recommended, whose sequence is "external cables square loop-middle cables square loop-internal cables square loop-cables of string beam".关键词
多重四边环索/张弦梁/穹顶/索力张拉Key words
multiple square loops ( MSL)/beam string/dome/cables tensioning分类
建筑与水利引用本文复制引用
张超,余立,许莉,林威..多重四边环索-张弦穹顶屋盖索力张拉方案比选[J].福州大学学报（自然科学版）,2017,45(2):151-158,8.基金项目
教育部博士点基金资助项目(2013351420006) （2013351420006）
福建省自然科学基金资助项目(2013J05072) （2013J05072）
福建省教育厅科技资助项目(JK2014005) （JK2014005）
