Construction method of steel structure beam-column connecting joint

Abstract

The invention discloses a construction method of a steel structure beam-column connecting joint, and relates to the technical field of beam-column connection. The construction method comprises the following steps that S1, preset parts are mounted, specifically, bearing parts are preset at the joints of steel columns and a box beam; and first upper transverse partition plates are fixedly preset onthe positions, located on the upper side of first lower transverse partition plates, of the steel columns; S2, the box beam is pretreated, specifically, avoidance grooves are formed in the middles ofupper flange plates at the two ends of the box beam; S3, the box beam is pre-erected, specifically, the two ends of the box beam are fixedly connected to the bearing parts of the two steel columns correspondingly; and S4, welding operation is conducted, specifically, the avoidance grooves are penetrated through, and the box beam and the bearing parts are welded and connected in a downhand weldingmode; and a first upper gusset plate is arranged on the upper side face of the box beam, the edge of the first upper gusset plate and the upper flange plates of the box beam are welded together in a downhand welding mode, and the first upper gusset plate and the first upper transverse partition plates are connected in a downhand welding mode. The construction method has the advantage that the construction difficulty of the beam-column connecting structure can be reduced.

Description

technical field [0001] The invention relates to the technical field of beam-column connection, in particular to a construction method for a beam-column connection node of a steel structure. Background technique [0002] In steel structure buildings, in order to improve the stability and torsional performance of steel structure beams, box girders are often used for steel beams. Generally speaking, the box girder is mainly composed of upper and lower flange plates arranged at intervals up and down, and a web fixedly connected between the upper and lower flange plates, and the web is in the box girder There is one piece in the width direction, so that the upper flange plate, the lower flange plate and two webs form a box-shaped structure. [0003] The joints between conventional box beams and columns (i.e. the joints recommended by 16G519 in "Detailed Structural Drawings of Steel Structures for Multi- and High-Rise Civil Buildings") are to be fully welded to the cantilevered b...

AI Technical Summary

Problems solved by technology

Among them, in order to realize the downward welding operation between the lower flange plate and the underside of the cantilever beam section, the upper flange plate at both ends of the box girder is often cut off; the lower flange plate and the cantilever beam section After the welding between the lower sides is completed, the upper flange plates at both ends of the box girder are completed by overhead welding. The welding is more difficult, and there are many penetration butt welds on the upper flange plates, so that The accumulation of welding damage is relatively large, which is unfavorable for earthquake resistance, and there is room for improvement

[0004] In the prior art, the welding positions include downward welding, vertical welding and overhead welding, and the difficulty increases from left to right

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