Consider The Stress History With Wet Angle Steel Reinforced Column Tests And Calculations

This paper mainly Studies the intensity and distortion characteristics of the wet-connected envelop angle iron column Which is under compression during the different stress history after reinforcement. By the way of step by step linearization, the nonlinear elasticity of concrete has been achieved, limit bearing capacity of wet-connected envelop angle iron reinforced column of axial-compression and eccentric-compression during the different stress history has been calculated, and the studies of axial-compression reinforced column test have been also carried out。Compared with two results, it shows that the limit strength of envelop angel ironreinforced column is markedly higher than the original column, the stress history has some effect on the limit strength of reinforced colunmn, and the limit strength drops down as the stress history increases。Meanwhile, the bearing capacity of the reinforced structure has some increase when the space between slabs decreases and the number of slabs increases. Furthermore, the paper also puts forward the applied calculating formulas and the results can accurately reflect the changing characteristics of the bearing capacity of those wet-connected envelop angle iron reinforced columns which bear certain stress histories。...