Assembly type steel structure beam column node

Abstract

The invention belongs to the technical field of steel structure beam column mode metal dampers, and specifically discloses an assembly type steel structure beam column node. The assembly type steel structure beam column node comprises a steel column, a steel beam and a node, wherein the steel column is connected to the steel beam through the mode; the node is welded on the right side surface of the steel column; the node comprises a first upper wing plate, a first lower wing plate and a first web plate; and the steel beam comprises a second upper wing plate, a second lower wing plate and a second web plate. According to the assembly type steel structure beam column node disclosed by the invention, floor is not connected to the node, influences on relative sliding of the node and the steelbeam are avoided, a plastic hinge is guaranteed to reliably appear, a design target and safety of realizing a main body structure are guaranteed; after the plastic hinge appears, a bolt can be loosened and pulled for jacking the second upper wing plate and the second lower wing plate to the original positions for continuous use, so that the life period maintenance cost of the steel column is greatly reduced; and moreover, first bolt holes which are used as long bolt holes are formed in the first upper wing plate and the first lower wing plate, so that the problem of practical engineering installation is completely avoided.

Description

technical field [0001] The invention belongs to the technical field of metal dampers for beam-column joints of steel structures, in particular to an assembled beam-column joint of steel structures. Background technique [0002] In the structural conceptual design, the beam-column joints of the steel structure frame usually require that the beam end joints are in an elastic state during a small earthquake, and enter a plastic state during a large earthquake to form a plastic hinge to achieve the design goal of strong columns and weak beams, so as to reduce the main body of the structure. Especially the earthquake disaster of the vertical steel column. The traditional steel frame structure design relies on the predetermined position of the beam end to enter a fully plastic state and form a plastic hinge to achieve the aforementioned goals. Dense steel bars are arranged, so that the actual flexural bearing capacity of the beam end is much greater than the design full-section p...

AI Technical Summary

Problems solved by technology

The traditional steel frame structure design relies on the predetermined position of the beam end to enter a fully plastic state and form a plastic hinge to achieve the aforementioned goals. Dense steel bars are arranged, so that the actual flexural bearing capacity of the beam end is much greater than the design full-section plastic bearing capacity. Under the action of the predetermined full-section plastic bending moment design value, the beam end often cannot enter the full-section plastic state, and the strong column and weak beam design goals are often not guaranteed to be reliably achieved

In some designs, dog-bone connections are designed at the ends of the beams to artificially reduce the plastic bending capacity of the ends of the beams in order to achieve the design of strong columns and weak beams. Therefore, the existence of the plastic deformation section can no longer be used and needs to be replaced

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