本文根据行波在结构内多次反射的概念,利用截头圆锥弹性杆—有质量刚性基础—弹性半空间模型,给出了计算烟囱竖向地震反应的方法。考虑了土—结构相互作用和结构阻尼对波在烟囱内传播的影响。给出了两个砖烟囱的算例。数值结果表明,在通常情况下烟囱竖向地震应力小于水平地震应力。 In this paper, based on the concept of multiple reflections of traveling waves in a structure, a method of calculating the vertical seismic response of a chimney is presented by using a truncated cone elastic rod-mass-rigid foundation-elastic half-space model. The effects of soil-structure interactions and structural damping on the propagation of waves in the chimney are considered. An example of two brick chimneys is given. The numerical results show that the vertical seismic stress of the chimney is less than the horizontal seismic stress under normal conditions.