Research on seismic performance of fabricated web open-hole energy dissipation supported frame structure
Energy-consuming support for prefabricated abdominal plates is composed of bolts that connect the power-shaped steel with the web perforated energy dissipation i-shaped steel,and the energy consuming panels are easily replaced after an earthquake.The panels are used to replace the supporting diagonal rod in the sup-porting frame structure of the center support frame,effectively avoiding the discharge of the supporting diagonal rod,therefore the structure has better energy consumption performance.The ABAQUS software is used to estab-lish a finite element model,and the effects of different parameters on stagnation performance,structural stiffness and bearing capacity of different parameters are analyzed.The results of the finite element analysis show that the structure of the open-hole opening of the prefabricated abdomen plate enters into plastic energy consumption mainly through the pores of the energy-consuming plate,and most of the stress are concentrated on the two ends of the pores;with the improvement of the loading level,the accumulation of the short-column in the hole gradu-ally increases and expands to the middle part,thus the overall structure of the structure is full and the energy consumption capacity is better.The larger the thickness of the energy consumption is,the greater the carrying capacity and initial stiffness will be,and the deformation will be less.The decline of the width of the energy con-sumption board has a greater impact on the openings of the plate parts;the larger the width of the panels of the hole is,the greater the load capacity and energy consumption capacity will be.
prefabricatedenergy dissipation supportframe structureseismic performancefinite element analysis
万方数据
维普
