非对称己型连体建筑连廊风载动力特性分析

Dynamic Response Analysis Of Unsymmetrical Three-Tower-Connected Structure Under Wind Load

利用流体计算软件CFX对风场进行模拟,再将ANSYS信息在CFX中插值,从而获得建筑结构表面的瞬态风荷载.分析不同连接方式下连廊连接处的受力、连廊受力及连廊位移结果.结果表明:当连廊位于狭道尾部时,柔性连接方式下连接处受力较小,连接效果较好,但当风向为连廊方向时柔性连接方式下连接处受力会明显增加,柔性连接不再适用;在该建筑结构中刚性连接具有较低的连廊轴力及连廊变形,但在支座处受力较大,应适当增强连接处承载能力;采用长度较小的连廊有益于减小连廊支座位移的变化率.

The study uses fluid calculation software CFX for simulating wind field, and ANSYS in the information providedin CFX interpolation, to obtain the transient wind load on the surface of the building structure. It analyzes the results of connectionforce, force and displacement of nest joint results in different connection modes. The results show that when the nestat the end of the narrow passage, the joint force smaller under the flexible connection way, its effect is good, but when thewind is the direction of the nest flexible connection way the joint force will increase obviously, the flexible connection nolonger apply; in the structure of rigid connection it has lower nest of axial force and displacement of nest, but in the bearingforce it is bigger, it should be appropriate to enhance joint bearing capacity; The length smaller nest is beneficial to reduce thenest of displacement rate.