Fabricated steel-bamboo combined semi-rigid energy dissipation joint frame

Abstract

The invention provides a fabricated steel-bamboo combined semi-rigid energy dissipation joint frame. The fabricated steel-bamboo combined semi-rigid energy dissipation joint frame is characterized bycomprising steel columns, semi-rigid energy dissipation joints and bamboo beams, wherein the bamboo beams are arranged between the top ends of every two adjacent mutually parallel steel columns, eachend of the bamboo beams is provided with a semi-rigid energy dissipation joint, bottom plates of the semi-rigid energy dissipation joints are connected with the steel columns through bolts, and ribbedplates are connected with the bamboo beams through bolts. According to the fabricated steel-bamboo combined semi-rigid energy dissipation joint frame, the bamboo beams and the steel columns are connected into a frame structure system with seismic capacity, wall bearing is not needed, the mechanical properties of materials are fully utilized, the cost is low, and the steel columns are adopted to replace traditional solid bamboo columns so as to improve the force on members in the frame structure system; and through the semi-rigid energy dissipation joints, it is ensured that the joints have enough shear capacity and flexural capacity, meanwhile, the rotational stiffness of the joints is improved, the splicing problem between a multi-high-rise wooden / bamboo structure and all layers of columns is solved, and weakening due to the fact that holes and grooves are formed in column members is avoided.

Description

technical field [0001] The invention relates to an assembled steel-bamboo composite semi-rigid energy-dissipating node frame, which belongs to the technical field of engineering structures. Background technique [0002] Traditional bamboo / wood structures and modern light wood structures in China mostly adopt pure bamboo / wood frame and shear wall structural system, with solid bamboo / wood columns, beams or shear walls as vertical load-bearing components. Due to the creep properties of bamboo / wood materials, during the long-term service of the structure, the creep of the column will cause the uncertainty of the redistribution of the internal force of the structural members, which will affect the structural safety performance. Bamboo / wood structure is one of the green and sustainable structural forms. Multi-level and high-rise design is its future development trend. When the number of building floors continues to increase, the axial force of the vertical components at the bottom...

AI Technical Summary

Problems solved by technology

[0003] Although the joint forms such as pin connection, tooth plate connection, and planting bar connection used in the existing bamboo / wood structure connection technology meet the design requirements in terms of strength and connection performance, their ductility and energy dissipation effects are not good in the event of an earthquake. Obviously, the seismic energy is dissipated completely depending on the deformation of the components, resulting in serious damage to the components and nodes after the earthquake

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