Core cylinder type double-flange closed-section column connecting joint and connecting method thereof

Abstract

The invention relates to the technical field of fabricated steel structures, and particularly discloses a core cylinder type double-flange closed-section column connecting joint and a connecting method thereof. The connecting joint comprises a first tubular column, a second tubular column, a core barrel and a joint column base; a first flange is arranged on the bottom end face of the first tubularcolumn, a fourth flange is arranged on the top end face of the second tubular column, a second flange is arranged at the upper end of the joint column base, and a third flange is arranged at the lower end of the joint column base; the first flange and the second flange as well as the third flange and the fourth flange can be fixedly connected through flange bolts; and the core barrel can be arranged in the first tubular column, the joint column base and the second tubular column in a penetrating manner. On the basis that it is guaranteed that the connecting performance between the vertical component columns of a box-shaped section column is close to the mechanical performance of traditional welding connection, the flange plates and the octagonal core barrel are adopted, industrial production is facilitated, the bearing capacity of the joint is improved, the performance of a connecting structure is guaranteed, efficient assembling of the structure is achieved, welding is greatly reduced, and the construction progress is effectively accelerated.

Description

technical field [0001] The invention relates to the technical field of fabricated steel structures, in particular to the technical field of core tube flange closed section column connection nodes. Background technique [0002] The prefabricated steel structure is in line with the development status of our country. Now the prefabricated steel structure often uses box-shaped steel columns. The traditional box-shaped column connection is on-site full-penetration welding. A single box-shaped steel column needs two workers to weld for half a day, and the construction efficiency is low. , The labor cost required for welding is higher. Studies have shown that welding fume contains more than 20 kinds of harmful substances, which seriously pollute the environment. During the Hanshin Earthquake, 52 high-rise steel structure residential buildings located in Ashiyahama, Hanshin earthquake area, 57 steel columns were damaged by horizontal cracks, and the box-shaped steel columns were of...

AI Technical Summary

Problems solved by technology

[0002] The prefabricated steel structure is in line with the development status of our country. Now the prefabricated steel structure often uses box-shaped steel columns. The traditional box-shaped column connection is on-site full-penetration welding. A single box-shaped steel column needs two workers to weld for half a day, and the construction efficiency is low. , higher labor costs for welding

Studies have shown that welding fume contains more than 20 kinds of harmful substances, which seriously pollute the environment

During the Hanshin Earthquake, 52 high-rise steel structure residential buildings located in Ashiyahama, Hanshin earthquake area, 57 steel columns were damaged by horizontal cracks, and the box-shaped steel columns were often damaged after being processed and transported to the site. It is difficult to guarantee the quality of steel columns. Most of the welded joints of steel columns are corroded prematurely, and the durability of joints is worrying.

At present, there are corresponding recommendations for the connection of horizontal members in the code, but there is no reliable connection form for vertical members

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