摘要
Abstract
In order to study the mechanical properties of concrete-steel truss composite floor,the mechanical properties of different composite floor were compared and analyzed by combining experiments with ABAQUS finite element simulation.The results show that the resistance effect value of P2 is 11.62%higher than that of P1,and the effect value of P3 is further 53.70%higher than that of P2,which indicates that the bearing capacity of composite floor can be significantly improved by adding the number of tapping screws of the string bar and using U-shaped shear connectors.There is a good agreement between the experimental and simulated values of load-displacement curves,and the error of the simulated values of ultimate load and ultimate deflection is less than 8%compared with the experimental data,which verifies the reliability of the model.Through the simulation analysis,it is found that the flexural performance of composite floor is the best when the chord span ratio of truss beam is 7 and the strength ratio of string bar is 1.32.关键词
混凝土-钢桁架/组合楼盖/力学性能/ABAQUS/有限元分析Key words
Concrete-steel truss/Composite floor/Mechanical properties/ABAQUS/Finite element analysis分类
建筑与水利
