Study Of Cold Bending Thin Formed Steel-Bamboo-wood Composite I Columns Axial Compression Performance

Along with the social economy growth rate is accelerated, the construction industry as thebasis of the construction industry, pollution and consumption of natural resources and naturalenvironment is becoming a serious problem. The traditional reinforced concrete structure ofresource consumption and environmental pollution is becoming more and more serious. Thus,wood, bamboo structure has been of concern to many people, more and more people began tostudy this kind of structure, in this environment, steel and wood composite structure, steel-bamboo composite structure also emerge as the times require. This kind of structure is acombination structure of steel and wood or bamboo is made by high-strength structuraladhesive or screws portfolio.Cold formed steel-bamboo-wood-based panel combination structure as a new type ofcomposite structure, the combination not only solve the cold-formed steel itself easilyinstability problems, but also can make full use of bamboo high toughness, deformationcapacity, energy saving and environmental protection etc.. This choice of cold-formed steel-bamboo wood-based panel combined column as the object of study, analysis and test researchand Simulation on the axial compressive properties, and provide a theoretical basis for theapplication of the composite columns in engineering.This article is based on two notches outward two notches, connected with thebamboo-wood composite board using epoxy resin structural adhesive and bolt, compositecolumn form i-shaped. Through the axial compression test of4cold-formed steel-woodcomposite board composite column, analyzed the composite column under axial compressionbearing capacity, load-displacement curve, deformation capacity and failure mechanism ofcoordination. The test results show that the cold-formed steel-wood composite boardcomposite column has higher bearing capacity and better ductility; bamboo wood compositeplate and the cold-formed steel can coordinate deformation, play the advantages of cold-formedthin-wall steel and wood composite board their; according to the combined structurecalculation theory and test results are presented for cold-formed steel bamboo wood compositecolumns of different working stages of the axial bearing capacity calculation formula.Using ANSYS finite element analysis for composite columns, the stress of cold-formedsteel reaches the yield strength and ultimate strength capacity of composite columns andcompared with experimental results to validate the finite element model was built reasonablesex. The simulation method is used for cold-formed steel and bamboo-wood composite boardcombination of axial compression stress analysis, the researchers cold-formed steel wall thickness, wood composite board thickness and other factors on the connecting bolt spacingcombination Columns were investigated.The research results as cold-formed steel-wood composite panels composite structures aspart of basic research on the future of steel and bamboo-wood composite panels provide thebasis for the design of composite structures.