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本文采用时程分析法和反应谱法对烟囱、电视塔、高层剪力墙和高层框架等高耸结构与高层建筑的竖向地震反应进行了分析。其结果表明:1.在烈度为8度强的情况下,结构上部竖向地震内力可达到或超过重力内力;下部竖向地震内力可达重力内力的20％—50％。2.高耸结构与高层建筑竖向地震反应以第一振型为主,据此本文给出了计算高耸结构与高层建筑竖向地震作用的公式,可供抗震设计应用。
In this paper, the vertical seismic responses of tall buildings and high-rise buildings such as chimneys, TV towers, high-rise shear walls and high-rise buildings are analyzed using time-history analysis and response spectrum method. The results show that: 1. In the case of a strong intensity of 8 degrees, the internal force of the upper vertical earthquake structure can reach or exceed the internal force of gravity; the internal force of the lower vertical earthquake can reach 20%-50% of the internal force of gravity. 2. The first earthquake mode is the main vertical earthquake response of towering structures and high-rise buildings. Based on this, the formulas for calculating the vertical earthquake response between high-rise buildings and high-rise buildings are given, which can be used for seismic design applications.