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本文介绍一种适用于高层建筑空间结构动力计算的半解析、半数值方法。该法将高层建筑非规则空间框契或框架剪力墙结构化为等效正交异性连续板系,用同时考虑剪切及弯曲变形、移动与转动惯量、横向与平面位移的双向解析,一向离散的等效厚条法进行动力计算,给出了便于工程计算应用的频率、振型与建筑动载荷作用下结构反应的计算格式。算例与分析表明,该法适用性强、精度高,并能节省大量内存与时间。文后对高层建筑结构动力计算提出了一种综合的简化方案。
This paper presents a semi-analytical and semi-numerical method suitable for dynamic calculation of high-rise building space structures. This method transforms high-rise buildings with irregular spatial frame or frame shear walls into an equivalent orthotropic continuous plate system. Simultaneously considering the two-way analysis of shear and bending deformation, movement and moment of inertia, and lateral and plane displacements, The discrete equivalent thick bar method is used to calculate the dynamics, and the calculation format of the structural response under the influence of frequency, mode shape and dynamic load of construction is given. Examples and analysis show that this method has strong applicability, high precision, and can save a lot of memory and time. A comprehensive simplified scheme for the dynamic calculation of high-rise building structures is proposed in this paper.