毡房结构与风压作用特征分析

介绍了哈萨克族毡房的结构组成,分析了毡房结构在竖向荷载作用下受力的合理性。针对毡房存在的抗风问题,采用FLUENT软件,建立毡房在风作用下的流体分析模型。建筑周围流场的绕流特性表明:由于毡房连贯流畅的流线曲面,极大地减少了风阻力。毡房表面的风压系数分布显示,在风荷载作用下,迎风面和背风面均受风压力作用;屋面整体受风吸力作用,极值出现在球冠形天窗处,且受θ角影响显著,在风荷载作用下此处有被局部掀起的可能,应对天窗处风载作用下的安全性予以重视。

Yurt Structure and Analysis on the Characteristicsof Wind Pressure

This paper introduces the structural composition of the Kazakh yurts, and the rationality of yurts structure under the vertical load. For the wind problem, the FLUENT software was used to establish the fluid analysis model under the action of wind in the yurts. Characteristic of flow field around building shows that: due to the fluency of the curved surface, greatly reduce the resistance. Shape coefficient of wind pressure distribution on the yurt shows that windward and leeward surfaces are subject to wind pressure, roof under wind suction and maximum value occurs at the edge of the skylight. The value is influenced by angle significantly. Where there may be a partial lift off under the action of the wind load. We should pay attention to the safety of roof.