Monitoring and Test on Load Bearing Transform of Large Span Steel Truss of Archaized Tower
Combined with construction of large span steel truss in the bottom of an Archaized tower,stresses in key members,displacements in control nodes and temperature variation were monitored and measured before and after moving construction temporary constraints.The unloading process based on the rule which constraints were unloaded gradually from outer to inner and four steps were carried out in the field.Compared with measured and theoretical results,they can meet with each other perfectly.The mechanical sensibility of steel stresses with temperature changing were also revealed.Then the reasonable conditions of unloading for the steel truss were advised.The process and method given in this paper provides the basis for safely construction of the Archaized tower,which would be reference for similar load bearing transform of steel structrues.
load bearing transform truss monitoring test finite element analysis (FEA) unload
Xiaoke Li Pengfei Han Zhihao Wang Jian Liu
North China University of Water Resources and Electric Power, Zhengzhou 450011, China
国际会议
郑州
英文
593-598
2012-09-22（万方平台首次上网日期，不代表论文的发表时间）