This is mainly because of geometric nonlinearity. 這主要是由于幾何非線(xiàn)性所致。
The concrete slabs strengthen the torsion buckling capacity of the steel grids and enhance the minimum geometric nonlinear buckling load. 混凝土面板加強了網(wǎng)架的抗扭轉屈曲能力,提高了最小幾何非線(xiàn)性屈曲荷載。