A construction method for a large-diameter thick-walled continuous Y-shaped steel pipe column

Abstract

The invention discloses a construction method of a large-diameter thick-wall continuous Y-shaped steel pipe column. The construction method is as follows: a BIM model of the continuous Y-shaped steel pipe column is established, and the continuous Y-shaped steel pipe column is decomposed into n prefabricated steel pipe columns from bottom to top. Buried pipe section, n Y-shaped column sections, 2n inclined column sections and n‑1 inverted V-shaped column sections; blanking to make each section; overall pre-assembly; quality inspection of pre-assembly; Coating, numbering, packaging, and transportation to the installation site; each pre-embedded pipe section and the corresponding Y-shaped column section are assembled into the lower part on site, and the two inclined column sections and the corresponding inverted V-shaped column section are assembled into the upper part; Hoist all the lower parts; hoist an upper part; then hoist another upper part adjacent to the previous upper part in turn to complete the hoisting of all upper parts; perform welding. The construction method not only has high processing quality and is convenient for transportation, but also can adjust the installation angle of the inclined column, and has a short construction period and high construction efficiency.

Description

technical field [0001] The invention belongs to the technical field of building steel structure construction, and in particular relates to a construction method for a large-diameter thick-walled continuous Y-shaped steel pipe column. Background technique [0002] At present, the shape design of public buildings such as large venues is becoming more and more unique, with different shapes. The overall shape generally presents a "V" shape. The angle is larger. This type of V-shaped steel structure is formed by continuous Y-shaped steel pipe columns. The specific structure of the continuous Y-shaped steel pipe columns is as follows: figure 1 As shown, the continuous Y-shaped steel pipe column 1 is composed of several Y-shaped steel pipe column units arranged in a row and connected sequentially. The column 12 is composed of two slanted columns connected, the two slanted columns are located in the same vertical plane, and the column part is located below the ground, thus forming...

AI Technical Summary

Problems solved by technology

However, if the support frame deviates slightly from the preset tilt angle of the slanted column, after the slanted column is hoisted on the support frame, the two ends of the slanted column cannot be installed, and the preset angle of the slanted column on the support frame must be adjusted again. Adjustment, and the adjustment process is complicated, time-consuming and laborious, which reduces the construction efficiency and cannot meet the requirements of the construction period

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