| Prefabricated reinforced concrete structure as a new form of structure is a recognized as a sustainable development technology and inject new vitality into the development of China’s construction business, because it has many advantages such as construction speed, quality, environmental protection, etc. Compared with ordinary reinforced concrete structure, it has the following advantages, such as short production cycle, saving energy, reducing consumption, cleaner production, and so on. Currently in China the study on prefabricated reinforced concrete structure is still in the exploratory stage, and the study on its seismic performance is still not perfect, in addition the results in terms of finite element analysis are also less and the results of relevant tests and finite element simulations are not systematic, complete. So this will lead to a greater challenge for the study of prefabricated reinforced concrete structure.In order to study the mechanical properties of beam-column joints of the prefabricated parts SRC frame and meet the seismic requirements engineering, the experimental study on on seismic performance will be done based on the existing nodes and edge nodes under low cyclic load. A physical model will be created in Nonlinear finite element software ABAQUS and its numerical analysis. The finite element results and the test results will be compared from the failure pattern, deformation, stress distribution, hysteresis curves, skeleton curves, ultimate load, ductility factor and energy dissipation capacity, strength degradation and stiffness degradation and other aspects.The results show that the failure modes of finite element simulation and the test remains the same. Both standardized damaged plasticity model and parameters given in this paper can simulate the mechanical properties of concrete better, the results of finite element simulations and experimental results are in good agreement within a certain error range, so the finite element simulation method used in this paper is feasible. In addition, the effects of axial compression ratio, concrete strength, yield strength of steel and beam end load position on the skeleton curve of beam-column joints of the prefabricated parts SRC frame are analyzed. The law of each parameter’s influence is obtained. |
