Study on anti-continuous collapse performance of steel reinforced concrete composite structures
Continuous collapse refers to the phenomenon of partial damage of engineering structure and formation of chain reaction,which eventually leads to large-scale damage of structure or even overall collapse.In the process of simulating steel bar fracture and concrete cracking through unit failure,the adhesive slip of steel bar and concrete affects the accuracy of analysis results on the anti-continuous collapse performance of steel-reinforced concrete composite structure.The safety of the building structure is reduced.In order to ensure the safety of the building structure,the anti-continuous collapse performance of the steel reinforced concrete composite structure was studied.According to the parameters of the steel-reinforced concrete specimen,steel plate specimens of the steel-reinforced concrete composite structure were prepared.The load was applied to the steel plate in the steel-reinforced concrete composite structure,and the anti-collapse performance was simulated to improve the analysis of the anti-collapse performance of the composite structure.The contact interface axial force of steel reinforced concrete composite specimens was calculated by simulating the forces in different areas after the removal of A4-a column(long side middle column),C1-a column(short side middle column)and A1-a column(corner column).The results show that no collapse occurs when the long side middle column,short side middle column and corner column are removed.When removing the long side columns,short side columns and corner columns on different floors of the building,the displacement generated by the building is less than-50 mm,which can ensure its stability.Therefore,the structure can provide good security for the building.
万方数据
维普
