台风侧向作用下单元式幕墙动力分析

Reliability analysis of glass curtain wall under effect of typhoon in side direction

风灾是自然灾害的主要灾种之一,由于全球气候变暖,风灾变得更为频繁,每年造成全球经济损失达数百亿甚至千亿美元,而我国东南沿海地区又是受风灾影响比较严重的区域。随着我国经济的高速发展,越来越多的高层和超高层建筑在我国东南沿海地区拔地而起,随着我国工业化程度的提高,单元式幕墙因其能较好地吸收层间位移的特点而广泛地使用于这些高层与超高层建筑。同时,建筑外墙结构在风灾的影响下发生破坏的案例更是时有发生。本文基于石沅台风风谱,模拟风荷载,将其应用于对超高层的单元式幕墙板块的动力响应分析,简化了相关的结构,以期达到理想的风振响应效果。

Windstorm is one of the most natural disasters in the world.Because of the global warming arising from greenhouse effect,the occurrence of windstorm becomes more and more frequency.Every year,the global economic loss caused by the windstorm reaches from 10 billion to 100 billion U.S.dollars.In China,many southeast coastal areas have always been seriously attacked by the undesired wind-disaster.Along with the rapid economic development in China,more and more high-rise architectures and super high-rise buildings have been erected in the southeast costal areas.Simultaneously,due to the improvement of industrialization,unit curtain-wall,with sound function of absorbing the displacement between floors,has been widely applied for the construction of high-rise and super high-rise architectures.In our daily life,many typical cases about the structure of cladding is damaged by the wind disaster often occur.Based on the shiyuan typhoon wind spectrum,this paper mainly describes the wind-load simulated by the computer,and then the calculated data of analog wind-load will be applied to the dynamic-force response and analysis of unit curtain-wall,to simplify the relevant structure,with a view to achieve the desired effect of wind-induced vibration.