Heavy type prefabricated grouting steel tube compound column and processing method

Abstract

The invention provides a heavy type prefabricated grouting steel tube compound column and a processing method. An edge-extending end head is arranged at one end of a tubular column, and an edge-extending end head flange is arranged on the edge of the edge-extending end head. A cavity which comprises a plurality of side walls is formed in the edge-extending end head, the other end of the tubular column can be sleeved with the cavity, and an end head flange used for connecting the edge-extending end head flange is arranged on the side wall, close to the end head, of the other end of the tubularcolumn. A vertical plate and a seam-repairing plate are bent and formed according to a preset shape. The vertical plate, an edge-extending end head plate and the seam-repairing plate are connected andformed by an edge-extending end head welding die and a middle portion locating welding die. The edge-extending end head flange is welded. The heavy type prefabricated grouting steel tube compound column is obtained by the steps. The lateral stress strength of the heavy type prefabricated grouting steel tube compound column is dramatically improved by adopting a covering-closing structure and a combined structure of flange connection, under the same load bearing requirements, the size of the heavy type prefabricated grouting steel tube compound column can be reduced.

Description

technical field [0001] The invention relates to the field of grouted steel pipes used in high-rise buildings, in particular to a heavy-duty assembled grouted steel pipe laminated column and a processing method thereof. Background technique [0002] Existing high-rise buildings require load-bearing columns to have a higher load-bearing capacity, so a prefabricated column that can be grouted in the inner cavity and outer wall of the steel pipe has been developed, and the weight of a single heavy-duty fabricated grouted steel pipe can reach up to ten tons. Existing installation structures such as Figure 10 As shown in , each prefabricated grouted steel pipe is connected by flanges. The problem is that the load-bearing columns of high-rise buildings may also need to bear lateral stress in addition to axial stress, and the flanges are connected by bolts. The connection, the shear strength is weaker, and the lateral force is weaker, so it usually needs to be overcome by increasin...

AI Technical Summary

Problems solved by technology

Existing installation structures such as Figure 10 As shown in , each prefabricated grouted steel pipe is connected by flanges. The problem is that the load-bearing columns of high-rise buildings may also need to bear lateral stress in addition to axial stress, and the flanges are connected by bolts. connection, weaker shear strength, weaker lateral forces, so usually need to be overcome by increasing the diameter

But this will take up more space in the building interior

[0003] Chinese patent document CN206158011U describes a semi-fabricated ultra-high-strength steel pipe grouting laminated column structure. This scheme adopts the method of on-site welding connection using ring-shaped connecting partitions, but the construction efficiency of this structure is low, especially, the on-site The welding construction conditions are poor, the quality after welding is difficult to guarantee, and potential safety hazards are prone to occur

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