Study on Wind-Loading Mechanism of Tiled Roofs Using Acceleration Sensors

该报告提出了坡屋顶瓦的临界风荷载的结论。由于屋面瓦之间的间隙，这些类型的屋面瓦是透风的。屋面瓦的净风荷载由屋面表面的外部压力分布和屋面覆盖物下的内部压力分布决定。外部压力分布取决于建筑流场和局部流动的变化，这是由于屋面瓦的形状。内部压力分布受屋面瓦间隙和透水覆盖物下流动阻力的局部方向的影响。屋面表面的临界外压分布并不一定会对屋面瓦产生临界载荷。

The report presents conclusions on the critical wind loads of tiles on pitched roofs. Because of gaps between the roofing tiles, these types of roof tiles are wind permeable. The net wind load on roofing tile is determined by the external pressure distribution on the roof surface and the internal pressure distribution underneath the roof covering. The external pressure distribution depends on the building flow field and changes in the local flow due to the shape of the roofing tiles. The internal pressure distribution is influenced by the local direction with respect to gaps between the roofing tiles and the resistance of the flow underneath the permeable covering. The critical loading on a roofing tile did not necessarily occur for the critical external pressure distribution on the roof surface.