基于气弹模型试验的高耸结构随机风振等效静力风荷载

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 34-37.

论文

基于气弹模型试验的高耸结构随机风振等效静力风荷载

丁泉顺朱乐东

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Equivalent static wind loads of stochastic vibration for towering structures based on the aeroelastic-model wind tunnel test

DING Quanshun, ZHU Ledong

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文章历史 +

摘要

给出了基于高耸结构气弹模型试验的有限截面风振位移和加速度响应测量结果推算任意结构层位移和加速度响应的最小二乘方法。采用简化的串联多质点系力学模型推导了基于高耸结构气动弹性模型试验的整截面风振内力的计算方法，进一步提出了基于气弹模型试验结果的按各结构层整截面风振内力等效的多模态综合等效静力风荷载的最小二乘计算方法。作为实例，以某高耸电视塔为例说明了所提出的多模态综合等效静力风荷载计算方法的可行性和可靠性。

Abstract

Based on the measurement of the responses of the towering structures in the wind tunnel test of the aeroelastic model, the displacements and accelerations of each storey of the towering structures are computed by the least-square method. The total internal forces of each storey of the structures are derived from the measurement results with a simplified model of series-wound system of particles. Furthermore, the equivalent static wind loads corresponding to the total internal forces are proposed based on the wind tunnel test of the aeroelastic model. Moreover, the reliability and applicability of the proposed method are illustrated with an actual example of the high-rise television tower as a numerical example.

导出引用

丁泉顺朱乐东 . 基于气弹模型试验的高耸结构随机风振等效静力风荷载[J]. 振动与冲击, 2012, 31(24): 34-37

DING Quanshun;ZHU Ledong. Equivalent static wind loads of stochastic vibration for towering structures based on the aeroelastic-model wind tunnel test[J]. Journal of Vibration and Shock, 2012, 31(24): 34-37