Construction method of Y-shaped cast steel combined with steel pipe column in subway station
A subway station and construction method technology, applied in infrastructure engineering, artificial islands, water conservancy projects, etc., can solve problems such as processing technology, welding quality, lifting and installation difficulties, time-consuming and labor-intensive concrete construction, and uncompacted concrete in pipe columns, etc. Achieve the effects of being conducive to safety management, simple and fast construction methods, and obvious social and economic benefits
Active Publication Date: 2016-09-07
2ND ENG CO LTD OF CHINA RAILWAY 12TH BUREAU GRP
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Problems solved by technology
[0005] In order to solve the problems that the existing Y-shaped steel structure column is very difficult in processing technology, welding quality, hoisting and installation when it is used in underground engineering, and the concrete construction is time-consuming and laborious, the concrete in the pipe column is not dense, the cavity is generated, and it is easy to deform. Provides a construction method for Y-shaped cast steel combined with steel pipe columns in subway stations
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[0062] A construction method for a Y-shaped cast steel combined steel pipe column in a subway station, comprising the following steps:
[0063] Step 1. Design and processing of Y-shaped cast steel combined with steel pipe column
[0064] The cast steel section 11 on the upper part of the Y-shaped cast steel combined with the steel pipe column is formed by casting two bifurcated sections 12 and a vertical node section 13 respectively, and then assembled and welded at the construction site. The material is G20Mn5N, the wall thickness is 80mm, and the bifurcated node position The wall thickness is 130mm, and the angle between the two bifurcated sections is 70°; the steel pipe section 14 under the Y-shaped cast steel combined steel pipe column is welded by several steel pipe sections, the material is Q345B, the steel pipe diameter is 1200mm, and the wall thickness is 30mm; This structure can bear 2,000 tons of vertical pressure on a single axis.
[0065] The upper cast steel sect...
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Abstract
The invention relates to the field of special-shaped steel pipe column processing and its concrete construction, and specifically relates to a Y-shaped cast steel combined steel pipe column construction method in subway stations, which solves the problems of processing technology, welding quality, hoisting and installation when existing steel structure columns are used in underground engineering Very difficult, the concrete in the pipe column is not dense, easy to deform, etc., including the design and processing of Y-shaped cast steel combined with steel pipe columns, the assembly and welding construction of the upper part of the cast steel section and the lower part of the steel pipe section on the construction site, the installation and construction of embedded parts, and the overall Lifting installation, aerial docking, aerial welding, and pouring concrete inside the steel pipe column by using concrete jacking device and pumping jacking method. The process of processing and casting in the factory in sections, assembling and welding on site, lifting and installing in two sections, and completing the welding in the air at one time ensures construction safety and structural welding quality, improves construction efficiency, speeds up construction progress, and fills the large steel structure of underground engineering. Blank in design, processing and installation.
Description
technical field [0001] The invention relates to the field of special-shaped steel pipe column processing and concrete construction thereof, in particular to a construction method for a Y-shaped cast steel combined steel pipe column in a subway station. Background technique [0002] With the rapid development of urban rail transit, the architectural structure of subway stations is also constantly developing and innovating. The beautiful "big space" architectural form with high space, large column spacing, and interconnected halls and platforms has begun to enter underground subway stations from ground buildings such as airports and hotels, and light, high-strength steel support structures have also begun to appear in subway stations. Apply gradually. The form of steel structure building has been widely used in ground buildings, but there is no mature and feasible construction method in China for subway stations, and it is only in the stage of experimental research. It has n...
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IPC IPC(8): E02D29/045E02D15/02
Inventor 李光耀王冬胜武明静刘广钧郭强赵香萍支卫东樊培月李晓
Owner 2ND ENG CO LTD OF CHINA RAILWAY 12TH BUREAU GRP
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