【摘要】 本文对高层框架建筑在竖向地震作用下反的应进行了分析.结果表明,高层框架竖向地震内力N_v(柱轴力)和M_v(梁弯矩)不可忽视.在框架上部,N_v和M_v可能超过重力内力Ng和Mg;在下部,N_v和M_v可以达到Ng与Mg的30～60%.本文提出了高层框架建筑竖向地震荷载的计算公式.更多还原

【Abstract】 Seismic responses of tall frame buildings to vertical ground motion are analysed in this paper.The analyses show that the internal forces N_v(internal axial force of the column)and M_v (moment of the beam) caused by vertical seismic component can not be neglected.In the upper part of the frame N_v and M_v Could exceed the internal forces Ng and Mg by the gravity.In the lower part N_v and M_v could reach 30~60 percent of Ng and Mg. A simple and serviceable formula for calculating vertical Seismic loads of tall frame buildings is proposed based on the comparison of different procedures.更多还原