Method for manufacturing flange bolting-welding hybrid connection assembly type beam-column joints

Abstract

The invention belongs to the field of designs of beam-column joints of building steel structures, and relates to a method for manufacturing flange bolting-welding hybrid connection assembly type beam-column joints. The method includes steps of computing the quantities of high-strength bolts at web plates of steel beams and determining the sizes of joint plates; computing the quantities of high-strength bolts of lower flanges of frame beams; computing the lengths of weld seams at joints of lower flanges of cantilever beams and splice plates and determining the sizes of the splice plates; manufacturing members according to computation results; hoisting the various members in place on construction sites; connecting the various members with one another by bolts. The method has the advantages that the splice plates are arranged at the lower flanges of the cantilever beams, and are used as in-place plates during site mounting, and accordingly the members can be conveniently arranged in place; the lower flanges of the cantilever beams and the lower flanges of the frame beams are connected with one another by the bolts, web plates of the cantilever beams and web plates of the frame beams are connected with one another by the bolts, upper flanges of the cantilever beams and upper flanges of the frame beams are connected with one another by butt weld seams, and accordingly the method inthe connection modes can bring convenience for mounting floors; the welding quantities are reduced, accordingly, the mounting efficiency can be improved, and the flange bolting-welding hybrid connection assembly type beam-column joints are reasonable in structure and are safe and reliable.

Description

technical field [0001] The invention belongs to the field of building steel structure beam-column node design, and relates to a manufacturing method of a flange bolt-welding hybrid connection assembled beam-column node. Background technique [0002] With the improvement of construction requirements for economic construction, steel structures have been mainly used in industrial plants in the past to be widely used in public buildings and civil buildings. The production process of prefabricated steel structure buildings is the standardized design of building components, factory processing, and on-site assembly. This production method can reduce the environmental pollution caused by construction, shorten the construction period, and save manpower and material resources. At present, the country is vigorously encouraging the development of the prefabricated construction industry. [0003] In steel structure buildings, beam-column joints have a significant impact on structural fo...

AI Technical Summary

Problems solved by technology

The upper and lower flanges of the traditional fully-welded beam-column rigid joints are fully-penetrated welded, which needs to be installed before welding during construction, and the construction period is relatively long. The flanges and webs of column rigid joints are connected by high-strength bolts, and the processing accuracy of components and joints is high. Due to the high unit price of high-strength bolts, the cost is also high

In addition, when the above-mentioned traditional beam-column rigid joints are spliced ​​on site, due to the high-altitude installation, it is necessary to attach welding lugs to the upper flange of the beam for the convenience of positioning, and the joints need to be cut off after the construction is completed, which is time-consuming and labor-intensive

In the patent CN2012200892132, the inventor of this patent proposes a beam-column assembled rigid joint of steel structure. The steel beam is composed of a cantilever beam and a frame beam. Splicing plates are arranged on the upper and lower flanges of the steel beam, and gusset plates are arranged on the web, and are installed on site. At the same time, the components are connected by bolts. This structure has the characteristics of high degree of assembly and easy quality assurance. However, the upper flange of the cantilever beam and the splice plate are connected by bolts, which is not convenient for floor installation. In addition, all components in the structure are connected by Bolt connection requires high processing precision, which is difficult to meet

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