Numerical Analysis Based On Test Of Energy-dissipating Composite Wall

In order to improve the seismic performance of rural steel frame structure houses,a kind of energy-consuming composite wall assembled by steel tube concrete frame and recycled concrete sheet wall was designed.The finite element method is used to simulate the low cycle test process of the composite wall,and the seismic performance of the composite wall is analyzed.The energy-dissipating composite wall is installed in a double-layer steel frame,and the seismic performance of the steel frame is analyzed by finite element method,and the deformation and failure characteristics,hysteresis curve and skeleton curve of the steel frame are obtained.Numerical simulation results show that the energy-dissipating composite wall consumes most of the seismic energy during the earthquake,and the seismic performance of the steel frame with energydissipating composite wall is significantly improved.Through the comparison of the seismic performance of the 16 th frame,the influence of the steel frame/composite wall span ratio,the installation position of the composite wall,and the stiffness of the steel frame on the seismic performance of the frame is analyzed.The main work of author is as follows:（1）The energy-dissipating composite wall specimens without concealed supports were selected for low-cycle repeated load tests,and the damage evolution process,hysteresis characteristics,energy consumption performance,and safety reserve capacity of the energy-dissipating composite wall specimens were analyzed.Combined with the 6 energy-dissipating composite wall members with concealed supports given in the experiment,a four-fold line restoring force model suitable for the structure is proposed.（2）The single-layer energy-dissipating composite wall specimen was simulated under low-cycle repeated tests by ABAQUS,and compared with the test.The results show that the simulation results are in good agreement with the test results.Based on this foundation,a double-layer composite wall component was established,and a limited analysis was carried out on it.Analyze its energy consumption,hysteresis characteristics and bearing capacity.（3）Established the finite element model of the steel frame of single-story singlespan and two-story single-span with energy dissipation composite wall,and used ABAQUS software to obtain its finite element simulation structure,so as to analyze their hysteretic characteristics and energy consumption Performance and safety reserve capacity;by changing the parameters,15 steel frame structures with energy-dissipating composite walls that do not need to be combined are designed,and each group is composed of 5 components.By analyzing their deformation and failure characteristics,hysteresis characteristics,and bearing capacity,the optimal combination form is obtained.carrying capacity.