结构物大面积开启和附近山体对风荷载的影响

通过风洞模拟实验对某具体的工程项目的风荷载进行了研究.该项目外形投影呈贝壳状,坐落在山坡下,并且有大门开启和关闭两种状态.风洞实验结果表明,在大门开启和关闭时,由于结构内部风压的很大变化,内、外表面风压叠加后,结构的风荷载受到很大的影响;另一方面,由于结构背后巨大山体的影响,结构表面的风荷载与没有山体时比较,发生了本质的变化.

Effects of both large area opening and neighboring mountain on the wind loading on a structure

Effect of wind loading on a structure was investigated by means of wind tunnel test.The structure has the shape of shell,locating at the bottom of a mountain,and it has a big door which can be opened and closed.The results show that the inner pressure has great changes as the big door is open or close,and it has great effect on the wind loading on the structure as the inner and outer pressure are added up.On the other hand,the mountain behind the structure also has large effects,which causes an essential distinction of the features of wind loading on the structure compared with no mountain existing.