摘要
蜂窝铝屋面板具有质量轻、强度高、刚度大等诸多优点。但是,风荷载较大地区的蜂窝铝屋面板在强风荷载作用下的破坏时有发生。鉴于某沿海工程的蜂窝铝屋面板在2011年第9号热带风暴"梅花"作用下发生的严重破坏,针对该类型的铝板系统进行了足尺试验研究,获得了其破环模式及承载能力。试验结果表明:该种蜂窝铝板系统的主要破坏模式为铝板边框与铝板的连接发生脱离,在模拟风吸荷载作用下具有较强的承载能力。结合对台风作用下的风环境实测及数值风洞模拟分析数据,现场施工质量对风吸荷载作用下蜂窝铝板系统的承载力影响较大。
Aluminum honeycomb-panel system has many advantages,such as light-weight,high-strength and strong-rigidity.However,it is often destroyed under strong wind-suction load in strong wind region.For example,this system of a coastal project was seriously destroyed under the impact of No.9 of 2011 tropical storm Muifa.In this paper full-scaled bearing capacity experiments were performed,in order to determine its failure mode and baring capacity.The experiment result indicated that major failure mode is separation of connection between aluminum fixed-assistant and panel and panel system has high bearing capacity under simulation load.With data measured from wind environment and numerical simulation of wind tunnel,it was concluded that the bearing capacity of panel system is greatly affected by on-site construction quality.
出处
《结构工程师》
2011年第6期84-88,共5页
Structural Engineers
关键词
风吸荷载
蜂窝铝板
承载能力
破坏原因
wind-suction load
aluminium honeycomb-panel
bearing capacity
failure cause
