矩形钢管混凝土短柱极限承载力多元线性回归分析

Ultimate bearing capacity of rectangular columns multiple linear regression analysis

在钢筋混凝土结构中,通常采用间距较密的箍筋或螺旋箍筋来约束混凝土以提高柱的抗剪承载力和延性,防止因抗剪能力不足而引起的破坏。钢管混凝土结构中的核心混凝土由于受钢管的约束不会因剪切而崩坏和剥落,导致削弱承载力。钢管混凝土强度的提高与很多因素有关,包括钢管的强度、形状、大小、混凝土的力学性能、试件的长度以及约束效应等。

Reinforced concrete structure, usually a more dense spacing of hoop or spiral reinforcement to restrain concrete columns to improve the shear strength and ductility,and prevent a lack of shear damage caused.Steel core concrete concrete structure the constraint due to steel will not cut the collapse and falling off,leading to reduced capacity.Concrete strength increased with a number of factors including the strength of steel, shape, size and mechanical properties of concrete, the length of the specimen and the effect of such constraints.