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核筒悬挂建筑结构是一种新型的高层建筑结构体系,其风致响应的研究很少。模拟了B类地貌下的风速时程,并转化为作用在结构上的风荷载时程;利用有限元软件ANSYS建立了结构计算模型,进行了结构水平顺风向风振响应分析,并与悬挂非减振结构进行比较,给出了阻尼器参数优化结果。分析结果表明,在水平顺风向风荷载作用下,核筒悬挂减振结构与非减振结构相比顶部位移、加速度均有所下降。阻尼器刚度的合理选择,不仅可使核筒顶部的位移响应减小,还可有效地控制悬挂楼层层间相对位移;而阻尼器阻尼系数取一个较大值(如1×108N.s/m)就可达到较好的控制效果。核筒悬挂减振结构具有良好的应用前景,该文的研究工作为这种新型结构体系的实用抗风设计提供参考。
Nuclear tube suspension building structure is a new type of high-rise building structural system, and its wind response is rarely studied. The time history of wind speed under B-type geomorphology is simulated and transformed into the wind load time history acting on the structure. The finite element software ANSYS is used to establish the structural calculation model, and the wind-induced vibration response of the wind turbine is analyzed. Damping structure are compared, and the result of damper parameter optimization is given. The analysis results show that the top displacement and acceleration of the core tube suspension damping structure decrease compared with the non-damping structure under the horizontal windward wind load. The reasonable choice of damper stiffness can not only reduce the displacement response of the top of the nuclear reactor, but also effectively control the relative displacement between the suspended floors; and the damping coefficient of the damper takes a larger value (such as 1 × 108N.s / m ) Can achieve better control effect. The structure of the tube suspension has a good prospect of application. The research work of this paper provides a reference for the practical design of the wind-resistant structure of this new type of structure.