Seismic Waves in Buildings with Shear Walls or Central Core
Seismic Waves in Buildings with Shear Walls or Central Core
复制标题
具有剪力墙或中央核心筒的建筑物中的地震波
DOI：
10.1061/(asce)0733-9399(1989)115:12(2669
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
V. W. Lee
中科院分区：
文献类型：
--
作者：
M. Todorovska;V. W. Lee
二维连续模型已被用于研究地震波传播到两端带有剪力墙和中央核心的建筑物中的影响。忽略土与结构的相互作用，得到了单色SH波在均匀半空间表面上以有限相速度传播时位移响应的解析解。二维模型比等效的一维模型更能代表此类建筑物的响应特性。结果表明，两端的剪力墙减少了建筑物的水平鞭打，中央核心不会减少扭转位移，并且核心可能允许建筑物自由端的水平鞭打太多。建议抗剪构件如果对称放置并且更靠近长建筑物的端部则更有效。
Two‐dimensional continuous models have been used to investigate the effects of the propagation of seismic waves into buildings with shear walls at the ends and with a central core. Neglecting the soil‐structure interaction, analytical solutions have been obtained for the displacement response to monochromatic SH‐waves, propagating with finite phase velocities on the surface of the homogeneous half‐space. Two‐dimensional models were found to be more representative than the equivalent one‐dimensional models of the response characteristics of such buildings. It will be shown that shear walls at the ends reduce the horizontal whip‐ping of the building, that the central core does not reduce the torsional displacements, and that the core may allow too much horizontal whipping of the free ends of the building. It is suggested that the shear‐resisting elements are more efficient if placed symmetrically and closer to the ends of long buildings.