| Concrete beam-column nodes as the key part of anti-seismic,its anti-seismic property plays an important role to structure damage.At present,the research data of concrete beam-column joints is a lot at home and abroad,but only research on the anti-seismic behavior of the beam-column joints and the study of the influence factors,lack of wallboard research on anti-seismic property of beam-column joints.In this paper,on the basis of the previous pure research frame beam-column joints,considering the function of the floor slab and the rectangular beam,component research more in line with the real situation of earthquake.This paper focuses on the research of multi-ribbed composite wallboard influence on anti-seismic property of frame beam-column nodes,we call it a framework structure of multi-ribbed composite wallboard.Multi-ribbed composite wallboard is a new type of structure system,which integrating palisade,bearing,seismic energy dissipation,and in the existing research and practice has good performance.In this paper we adopts ordinary concrete as the sash,embedded aerated concrete block of a multi-ribbed composite wallboard to simulate analysis.1.Large general finite element software ABAQUS is adopted to establish 3groups the frame beam-column nodes and frame multi-ribbed composite wallboard beam column nodes.This 3 set of frame beam-column nodes and frame-multi-ribbed composite wallboard beam column nodes are middle,end,angle nodes in the middle floor,and a nonlinear finite element simulation analysis on them.2.The results of the above finite element nonlinear analysis for sorting,separately for each position of the beam-column joints crack occurrence and thedegree of cracking,hysteresis curves,skeleton curves,energy dissipation capacity and stiffness degradation,ductility performance is analyzed,and the comparative analysis of the influence of multi-ribbed composite wallboard to beam-column node in the above aspects.From the above aspects comparison analysis shows that the use of multi-ribbed composite wallboard for frame structure node promotion role in earthquake is very big,and enhance the safety performance of the entire frame structure.3.Put forward from the perspective of cost and anti-seismic optimize the multi-ribbed composite wallboard,and then compare the framework structure of multi-ribbed composite wallboard,frame structure and frame-shear wall structure,puts forward the layout principle of multi-ribbed composite wallboard,and considering respectively from the aspects of size,shape and topology of the overall framework of multi-ribbed composite wall structure is optimized,thus in the most reasonable economy condition achieved the best seismic effect. |
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