Lead Bearing Steel

As for the limit bearing capacity formula of the concrete filled steel tube long column subjected to axial compress, we lead to the tangent modulus and the conception of metal material.

在推导钢管混凝土轴心受压长柱临界承载力公式时，论文利用材料的切线模量，分别推导了钢材和混凝土的切线模量公式。

As the existence of inner stress of steel decreases the bearing capacity of steel, which may lead to unpredictable accidents, therefore it's practically significant to test the inner stress of steel.

钢件内应力的存在使钢件的承载能力下降，常常带来难以预料的事故。

Thus, the stresses of the steel increases while the stress of the concrete decreases, which will lead to a reduction of the bearing capacity of components.

其中钢管应力增大，管内混凝土应力减小，将会导致构件承载力有所降低。