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对于体型复杂的超高层建筑,通常利用风洞进行刚性模型试验,从而得到可直接用于设计的风荷载体型系数;然而高耸结构由于其基频较低,风与结构的耦合作用往往会导致结构振动的明显加大,对于主体结构及其维护构件的安全使用产生不利的影响。在采用简化层模型假设的基础上,通过风洞试验的数据,编制了计算高层复杂建筑结构风振相应的程序。通过对一实际工程的计算分析表明,计算结果合理可靠,并已运用于设计中。
For complex high-rise buildings, wind tunnels are usually used to conduct rigid model tests to obtain wind load coefficient coefficients that can be directly used for design. However, due to the low fundamental frequency of towering structures, the coupling between wind and structure often leads to structure Vibration significantly increased, for the main structure and the safe use of maintenance components adversely affected. Based on the simplified model assumptions, wind tunnel test data were used to calculate the wind-induced vibration of high-rise buildings. The calculation and analysis of an actual project shows that the calculation result is reasonable and reliable and has been used in the design.