Mechanically anchored connection node structure between concrete filled steel tube columns and reinforced concrete beams

Abstract

The invention discloses a mechanical anchoring connection joint structure of a steel pipe concrete column and a reinforced concrete beam in a building structure. The joint structure comprises a steel pipe column, a beam surface rib, a beam bottom rib, a steel corbel, an upper horizontal ring plate, a lower horizontal ring plate and a connection anchoring machine, wherein the steel corbel is joist steel; the upper and lower wing edges, near the steel pipe column, of the steel corbel are respectively welded with the steel pipe column through the upper horizontal ring plate and the lower horizontal ring plate; the connection anchoring machine consists of an upper anchoring machine and a lower anchoring machine; the upper anchoring machine and the lower anchoring machine both have joint grooves; the upper anchoring machine is vertically welded on the upper horizontal ring plate; the end part, near the steel pipe column, of the beam surface rib is inserted into the joint groove of the upper anchoring machine after being provided with a nut and a washer; the lower anchoring machine is vertically and reversely welded at the bottom end of the steel corbel, and the welding position is far from the steel pipe column; and the end part, near the steel pipe column, of the beam bottom rib is inserted into the joint groove of the lower anchoring machine after being provided with a nut and a washer. The joint structure is simple in structure, stable in stress, quick in construction period, simple in construction and few in scene welding procedures, and can save steel materials.

Description

technical field [0001] The invention relates to a node structure in a building structure, in particular to a mechanically anchored connection node structure between a steel pipe concrete column and a reinforced concrete beam. Background technique [0002] The concrete-filled steel tube structure is developed on the basis of the steel-concrete structure. It uses the mutual restriction of the stress process of the two materials, the steel tube and the concrete, so that the steel tube concrete structure has high bearing capacity, good plasticity and toughness, and superior earthquake resistance and fire resistance. , material saving and short construction period. [0003] After years of practice and research, CFST structures have been widely used in various building structures, and experiments and theoretical research have also been carried out extensively and deeply. Especially in recent decades, with the rapid development of computers, the corresponding numerical calculation...

AI Technical Summary

Problems solved by technology

However, this technology needs to perforate the steel pipe column, which will weaken the steel pipe column to a certain extent.

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