钢筋混凝土柱在轴向预应力影响下的稳定分析

The influence of steady to reinforced concrete pillar under prestressing force

为了研究预应力对钢筋混凝土柱稳定性能的影响,本文提出了一种计算施加预应力后钢筋混凝土柱临界荷载的计算方法,该方法结合了分析预应力作用的等效荷载法以及计算位移的图乘法。根据推导可以得出钢筋混凝土柱的临界荷载与施加预应力大小成正比关系,并通过算例进一步证明了施加预应力能有效提高钢筋混凝土柱承载力。

In order to study the influence of the reinforced concrete pillar stability ability under pre-stressing force, one kind of critical calculation method about loading of the reinforced concrete pillar with pre-stressing force was put forward in this article. This method combines calculation about the pre-stressing force equivalent and picture calculation loading. The derivation by analyses goes out that reinforced concrete pillar critical loads takes direct relation to the pre-stressing force dimension, and by way of calculates the example proved further exerting pre-stressing force effectively to raise the reinforced concrete pillar and bear the weight power