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.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2008年第9期93-97,107,共6页
Journal of Wuhan University of Technology
关键词
弦支穹顶
拉索张拉过程
施工监测
数值模拟
suspended-dome
cable-stretching process
construction monitoring
numerical assessment
