Construction method of large-diameter thick-wall 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 method comprises the following steps: establishing a BIM model of the continuousY-shaped steel pipe column, and decomposing the continuous Y-shaped steel pipe column into n embedded pipe sections, n Y-shaped column sections, 2n inclined column sections and n-1 inverted V-shapedcolumn sections from bottom to top; blanking to manufacture each section; pre-assembling the whole body; performing quality inspection on the pre-assembly; coating, numbering and packaging all the sections, and transporting the sections to an installation site; assembling each embedded pipe section and the corresponding Y-shaped column section into a lower part on site, and assembling the two inclined column sections and the corresponding inverted V-shaped column sections into an upper part; hoisting all lower parts; hoisting an upper part; then sequentially hoisting another upper part adjacent to the previous upper part to finish hoisting of all the upper parts; and performing welding. The construction method is high in machining quality and convenient to transport, the installation angleof the inclined column can be adjusted, the construction period is short, and the construction efficiency is high.

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

Images