Finite Element Analysis of Bias Performance of Recycled Concrete Columns with Built-in Angle Steel Bones and Steel Tubes
In order to study the bias performance of recycled concrete columns with built-in angle steel bone and steel tube,the finite element software ABAQUS was used to numerically simulate 22 columns.The load-span deflection curve of composite column is analyzed,and the influence of recycled concrete strength,recycled aggregate replacement rate,slenderness ratio,steel bone size,eccentricity and other parameters on the bias performance of composite column is studied.The results show that with the increase of eccentricity,the bias bearing capacity and deformation resistance of the composite column decrease sharply,but the ductility increases.With the increase of slenderness ratio,it is found that the bias bearing capacity,ductility and deformation resistance of the composite column all decrease.Increasing the strength of recycled concrete can effectively increase the partial bearing capacity of composite columns,but the ductility will be reduced.With the increase of the size of the steel bones,it is found that the bias bearing capacity,ductility and deformation resistance of the composite column are improved.Increasing the regenerated aggregate substitution rate has little effect on the ductility of composite columns,but it reduces the bias bearing capacity and increases the lateral deformation.
recycled concretebias performanceangle steel bonefinite element analysis
万方数据
维普
