Bending Performance Test And Numerical Simulation Of Steel Reinforced Recycled Aggregate Concrete Beams

With the development of city in China, the construction waste emissions year by year. However, most of the construction waste was transported around the city outskirts or simple landfill or open storage without any treatment which not only wastes land and resources, but also lead to the environment pollution. The production of recycled concrete can be a way of construction waste utilization. Numerous studies discovered that the mechanical properties of the recycled concrete, durability and other indicators are lower than ordinary concrete, which make renewable structural performance of concrete structures lower than the average performance of concrete. It seriously obstructs the recycled concrete application in practical engineering. Steel--concrete composite structures is a new structure type developed on the basis of steel and concrete structures. It has structure bearing high, high rigidity and great seismic performance, etc. If we use the recycled concrete to composite structures, the two materials can each play to their own strengths. Then the new structures not only have the advantage of composite structures, but also compensate for a lack of recycled concrete. Most importantly, it has the ecological significance.This paper made 4 recycled concrete-steel beams research the steel-recycled concrete beams flexural mechanical properties, failure modes and deformation characteristics and analize the capacity factors affecting steel-recycled concrete beams by varying the material substitution rate and reinforced stirrup regeneration.Finally we explore the capacity calculation formula in line with steel recycled concrete beams based on test data and the existing rules on the calculation of SRC members. The article also uses ABAQUS finite element software to analize the nonlinear finite element to thetest component. It describes the various steps of selecting material from applying the model, establish a geometric model, dividing cells, boundary conditions, load and solving. By comparing the experimental results and finite element analysis results, we discovered consistent the results.The main conclusions are as follows:(1)Damage in the form of steel reinforced recycled concrete beams and destruction in the form of steel reinforced ordinary concrete beams is basically the same. They all have significant flexibility, cracking, yield and limit four stages.(2) In the situation of different Subsituation rate, there was no significant difference in the bearing capacity of steel reinforced recycled aggregate concrete beams and steel reinforced ordinary concrete beams.(3) In the situation of different Stirrup ratio, there was no significant effect on the ultimate bearing capacity of steel reinforced recycled aggregate concrete beams. But there is a certain influence on the development of cracks in steel reinforced concrete beams.(4) Steel reinforced recycled aggregate concrete beam is in line with plane assumption.(5) There are the same results between Finite Element Analysis and Experiment analysis. ABAQUS can be used to analize the other influences to the bending performance of the steel reinforced recycled aggregate concrete beams.