The Seismic Performance Of Research About Steel Reinforced Concrete Composite Torsion Component

Many earthquakes show that ordinary seismic performance of reinforced concrete member is poorer, severe losses after the earthquake. And steel reinforced concrete structure’s ductility, energy dissipation, high bearing capacity, resistance to wind and seismic performance is good, it has gained wide recognition in civil industry, in addition to the built-in steel concrete, the cost is higher, generally it fits with the high-level, high-rise and economically developed cities.I have seven root ratio for 1/2 composite steel reinforced concrete column to low reversed cyclic loading experiment, study its seismic performance. Experimental parameters as follows:the axial compression ratio, twisted ratio, stirrup ratio and stud. By comparison with the experimental data, a detailed description of the damage characteristics of each specimen analysis section steel, steel and so on the constitutive relation; Hysteretic performance of SRC structures, skeleton curve, stiffness degradation, strength attenuation and equivalent damping ratio of energy dissipation ratio, accumulated energy dissipation and ductility coefficient was analyzed, and a variety of factors affect the specimen is given suggestion restoring force model, discusses the calculation of steel reinforced concrete column cracking torque.Experimental results show that the axial compression ratio increases, the bearing capacity of the artifacts, stiffness degradation is fast, plumpness hysteretic curve is not high, ductility and energy dissipation ability is poor, small seismic performance parameters of the axial compression ratio component than large axial compression ratio, artifacts is excellent; Specimen of the twisted than increase can improve the bearing capacity of components, but the seismic performance is not ideal, stirrup ratio big component has a better seismic performance, the stud configuration’s influence on the seismic performance is not big.