Finite Element Study on Axial Compression Behavior of Recycled Brick-Concrete Aggregate Concrete-filled Square Steel Tubular Short Column
Research for the mechanical property of recycled brick-concrete aggregate concrete-filled square steel tubular short column,and promote resource utilization of building solid waste.ABAQUS software is used to establish the model of recycled brick-concrete aggregate concrete-filled square steel tubular short column.The simulation results are compared with the experimental results to verify the correctness of the model.Then the effects of the replacement rate of brick-concrete recycled aggregate,corner radius ratio,thickness and yield strength of steel tube on the axial compressive properties of short column were analyzed.The research findings show that when the substitution rate of brick-concrete aggregate is less than 50%,the reduction of ultimate bearing capacity is less than 10%.When the corner radius ratio increases to 0.16,the ultimate bearing capacity increases slightly.The ultimate bearing capacity of the specimen increases with the increase of the thickness and yield strength of the steel tube.On the whole,the effort to the bearing capacity of the specimen is small when the substitution rate of brick-concrete aggregate is small,and the thickness and yield strength of steel tube have great influence on the bearing capacity of the specimen.For square columns,properly increasing the corner radius ratio can make concrete better restrained by steel tube,and increase bearing capacity.But when the corner radius ratio is too large,the section area will be greatly weakened and the bearing capacity will be reduced.
brick-concrete recycled aggregateconcrete-filled square steel tubecorner radius ratiofinite element analysis
万方数据
维普
