弦支穹顶拉索张拉过程现场监测与数值模拟  

Field Monitoring and Numerical Assessment on Cable Stretching Process of a Suspended-dome

作　　者：纪晗[1] 熊世树[1] 黄丽婷[1] 秦开虎[2] 

机构地区：[1]华中科技大学土木工程与力学学院 [2]保利房地产(集团)股份有限公司,武汉430074

出　　处：《武汉理工大学学报》2008年第9期93-97,107,共6页Journal of Wuhan University of Technology

摘　　要：对武汉体育中心二期工程体育馆新型弦支穹顶钢屋盖的拉索张拉过程进行了现场监测和数值模拟。通过拉索张拉过程中对拉索内力、结构关键节点相连杆件应变、支座节点位移和整体变形的监测和分析,得到了其变化规律和屋盖受力特点:在拉索张拉过程中,中环索对外环索的影响大于内环索对中环索的影响;屋盖支座节点的位移均指向屋盖的中心;所测杆件具有较大安全储备,仅外径索附近个别杆件受力较大,施工时应引起注意。The field monitoring and the numerical assessment are performed on cable stretching process of a suspendeddome. The cable stress, key bar strain, node displacement and dome deformation were monitored and analyzed. It is concluded that the middle-cable effect on the outer-cable is more significant than the inner cable effect on the middle-cable in the process, and the dome node displacements are toward the dome center. The monitored bars are safe in the stretching process, of which the outer cable should be monitored especially.

关 键 词：弦支穹顶 拉索张拉过程 施工监测 数值模拟 

分 类 号：TB22[天文地球—大地测量学与测量工程]