屈曲约束支撑在某商业建筑中的应用

Buckling Restrained Brace Used In a Commercial Building

介绍了利用屈曲约束支撑解决扭转周期长和侧移刚度不足的问题。唐山某商业建筑结构超长,两端刚度相差较大,中间联系薄弱,结构位移角超过规范限值,扭转周期比不满足要求,通过设置调整屈曲约束支撑的位置和数量满足规范要求。在罕遇地震作用下,通过屈曲约束支撑的屈曲耗能,实现设防目标。

In this paper, we discussed one real application of utilizing buckling-restrained brace to solve the problem of long torsional period and lateral rigidity shortage. We deal with the super-length structure for one commercial building in Tangshan, for which the stiffness on the two sides is quite different. Moreo- ver, the middle connection of this structure is weak. Thus with routine design, the calculated structure displacement angle and the torsional period ratio will go beyond the code limitation. With Buckling-Re- strained Braces, we can change such a situation. The seismic fortification Criterion could also be stafified even under the rare earthquakes.