Seismic Performance of Reinforced Concrete Hollow Cylinder
Reinforced concrete hollow columns in the field of civil engineering construction is a kind of vertical load-bearing column structure commonly which is used at home and abroad,it can greatly reduce their weight because of the existence of hollow inside,and its seismic performance has been widely concerned.Therefore,in order to study the seismic performance of reinforced concrete hollow columns,a numerical simulation calculation model is established based on abaqus.By changing the design parameters of hollow section diameter in reinforced concrete columns,three kinds of reinforced concrete hollow columns are designed to analyze reinforced concrete hollow columns with different hollow ratios.The results show that the ultimate bearing capacity of reinforced concrete cylinder increases with the increase of hollow ratio.Among them,the reinforced concrete cylinder RC3 with the largest hollow ratio has a relatively gentle load decline section,the load strength only decreases by 5.39%compared with the peak peak,and the bearing capacity decreases slightly.It has better ductility and deformation capacity,and can improve the initial stiffness and failure stiffness of the structure,and enhance the ultimate bearing capacity of the RC hollow cylinder,which is conducive to the seismic performance of the structure.
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