Web friction-type shape-memory alloy rod self-resetting steel frame beam-edge column joint

Abstract

The invention discloses a web friction-type shape-memory alloy rod self-resetting steel frame beam-edge column joint comprising steel columns, steel beams, shape-memory alloy rods, L-shaped supports and friction energy dissipaters. The steel beams are located on one sides of the steel columns; the shape-memory alloy rods transversely penetrate through the steel columns; the L-shaped supports are located on the inner sides of flanges of the steel beams; and the friction energy dissipaters are located in the middles of webs of the steel beams and comprise channel steel, energy dissipation friction pieces and high-strength bolts, wherein the channel steel is connected with flanges of the steel columns and the webs of the steel beams, the energy dissipation friction pieces are arranged between the channel steel and the webs of the steel beams in a filling mode, and the high-strength bolts penetrate through the webs of the steel beams and enable the channel steel, the energy dissipation friction pieces and the webs of the steel beams to be connected together. Arranging convenience of a floor at the joint can be improved; the anchoring effect of the shape-memory alloy rods and the steel beam ends is strengthened while the local deformation resistant capability of the flanges of the steel beams is reinforced; and the replaceability of members is improved while the self-resetting performance and hysteretic energy dissipation of the joint are effectively improved.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a self-resetting steel frame beam-side column joint of a web friction type shape memory alloy rod. Background technique [0002] Earthquakes bring extremely serious disasters to human beings. The traditional seismic design adopts the ductility design method, that is, under the action of an earthquake, through the early yield and failure of some structural components, but the overall function is not lost, most of the seismic energy is dissipated by the plastic deformation of the components, so as to achieve the main body purpose of structural safety. [0003] As an important part of the frame structure, the beam-column connection has a great influence on the recoverable function of the structure. With the development of the concept of performance-based seismic design, the functional requirements of improving the recoverability of structures by controlling the residual deformation o...

AI Technical Summary

Problems solved by technology

[0005] Technical problem: The present invention provides a structure that overcomes the inconvenience of floor layout caused by the arrangement of shape memory alloy rods on the outside of the beam flange and the local buckling deformation of the beam flange, effectively enhances the energy dissipation capacity and self-resetting performance of nodes, and improves the replaceability of components. Web Friction Shape Memory Alloy Rod Self-resetting Steel Frame Beam-Side Column Joints

Images