可移动房屋钢框架结构试验研究

Experimental research on steel frame structure of mobile buildings

对风荷载作用下两层可移动房屋的静力进行试验研究,考察其结构的受力性能和变形机理。该结构由两个钢框架盒子单元组成,根据静力等效原则,采用在柱顶施加集中荷载来模拟水平风荷载,得到了框架结构的水平侧移和单元间的相对移动值。试验表明,盒子单元之间的相对移动将显著影响可移动房屋的水平侧移。

Static tests were conducted on a two-storey mobile building under wind loads, which is composed of two box units of steel frame structures. The mechanical behaviour and the deformation performance of the structures were investigated. Based on the principle of static equivalence, horizontal loads were applied onto the load points on the top of the columns to simulate the wind loads. The displacement values and relative shifting values of the frame structures were obtained. The tests results show that the horizontal deflections of the mobile buildings are greatly affected by the relative shifting of the separate box units.