PERFORMANCE ASSESSMENT OF HIGH-RISE TOWER CRANE UNDER TURBULENT WIND

摘要：

This paper proposes a general scheme for safety and serviceability assessment of high-rise towercranes under turbulent wind based on time domain buffeting response analysis. Spatially correlated wind velocity at the location of the tower crane is simulated firstly using an algorithm for generating time domain samples of a stationary, multivariate stochastic process according to some prescribed spectral density matrix. The buffeting forces applied to the structure are computed according to the above-simulated wind velocity fluctuations and the lift, drag, and moment coefficients obtained from a CFD computation. Those spatially correlated loads are then fed into a well calibrated finite element model and the nonlinear time history analysis is conducted to compute structural buffeting response.The obtained response is then used for structural safety assessment under design wind speed and servicearbility assessment under operational wind speed in construction stage.

关键词： tower crane buffeting response wind velocity modeling

作者: Sun Zhi Hou Ning Xiang Hai-Fan

作者单位: State Key Laboratory on Disaster Reduction of Civil Engineering,Tongji Univeristy,Shanghai, China

会议类型: 国际会议

会议名称: 2007 International Symposium on Integrated Life-cycle Design and Management of Infrastructure(2007基础设施全寿命设计与营养国际会议)

会议地点: 上海

会议语种:英文

页码: 279-288

在线出版日期: 2007-05-16（万方平台首次上网日期，不代表论文的发表时间）