Steel-encased concrete composite beam-steel pipe column connection joint

Abstract

The invention discloses a steel-encased concrete composite beam-steel pipe column connection joint and a manufacturing method thereof. The joint comprises a steel pipe column, an upper through partition plate, a lower through partition plate, a lateral connection plate and the like; the upper through partition plate and the lower through partition plate are arranged on the steel pipe column in a transverse penetrating mode; hogging moment reinforcing steel bars are welded to the two ends of the end face of the upper through partition plate, the lower through partition plate and the lateral connection plate form a U-shaped device on the column side, and the U-shaped device can be made into a uniform cross-section or a variable cross-section form according to beam-column cross section size; a steel-encased girder is directly placed in the U-shaped device and connected with the U-shaped device through high-strength bolts. The steel-encased concrete composite beam-steel pipe column connection joint has the advantages that the welding work of the whole U-shaped device can be completed in a factory, a steel-encased girder bottom plate and a lateral plate are connected with the joint through high-strength bolts, the site welding work amount is greatly reduced, and construction and assembling are facilitated; the hogging moment reinforcing steel bars are directly welded to the upper through partition plate, the situation that steel pipe bearing capacity is weakened due to trepanning in the side wall of a steel pipe can be reduced, and force transfer is definite.

Description

technical field [0001] The invention relates to the technical field of building structures, and more specifically relates to a novel outsourcing steel-concrete composite beam-steel pipe column connection node aimed at the industrialized production of buildings. Background technique [0002] Existing steel-concrete composite beam-steel tube column joints applied in the field of building structures mainly have the following forms: (1) External reinforced ring type joint: a reinforced ring plate is set outside the steel tube column at the corresponding position of the composite beam bottom plate , the bottom plate of the composite beam is lap-welded with it, and the side plate of the composite beam is directly welded to the steel pipe wall. There are two specific structural forms for the treatment of negative moment reinforcement in the composite beam. One is through opening holes in the steel pipe column wall, and the composite beam The inner negative moment steel bar passes t...

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Problems solved by technology

[0004] In view of the above-mentioned joints between the steel-concrete composite beam and the steel pipe column, the openings in the column wall easily weaken the section of the steel pipe column, and the external reinforcement ring plate affects the appearance. The welding of the steel beam, the column wall and the connecting plate makes the welding work on site heavy, and the quality is not suitable. A new type of outsourcing steel concrete composite beam-steel tube column node with simple structure, clear force transmission, convenient construction and industrial production is proposed.

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