The concrete slabs strengthen the torsionbuckling capacity of the steel grids and enhance the minimum geometric nonlinear buckling load.
混凝土面板加强了网架的抗扭转屈曲能力,提高了最小几何非线性屈曲荷载。
2
When vertical loads applied to a straight beam, the structure will have large bending and torsion and lose steady, this phenomenon is called lateral torsionbuckling.
The purline is often designed as a simple beam, and only it′s strength needs to be calculated, if the roof panel can prevent it′s lateral buckling and torsion.