Subway station Y-shaped cast steel combining steel pipe post processing and construction method
A technology for subway stations and construction methods, 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: 2014-12-24
THE 2ND ENG OF THE 12TH BUREAU GROUP OF CHINA RAILWAY
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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 constru
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[0062] A construction method for a Y-shaped cast steel combined with a 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 tube columns
[0064] The upper part of the cast steel section 11 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 position of the bifurcation node The wall thickness is 130mm, and the angle between the two bifurcated sections is 70°; the lower part of the steel pipe section 14 of the Y-shaped cast steel combined with the steel pipe column is welded by several sections of steel pipes, the material is Q345B, the diameter of the steel pipe is 1200mm, and the wall thickness is 30mm; This structure can carry 2000 tons of vertical pressure on...
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The invention relates to the field of special-shaped steel pipe post processing and concrete construction of the special-shaped steel pipe post, in particular to a subway station Y-shaped cast steel combining steel pipe post processing and construction method, which solves the problems that when the existing steel structure post is applied in underground engineering, the processing process, the welding quality and the hanging conveying installation are very difficult, concrete in the pipe post is not compact, deformation easily occurs, and the like. The method comprises the following steps of design and processing of Y-shaped cast steel combining steel pipe post, splicing welding construction of upper part cast steel sections and lower part steel pipe sections in construction sites, installation and construction of embedded parts, integral hanging conveying installation, butt joint in the air, welding in the air, and concrete casting in the steel pipe post by adopting a concrete jacking device and a pumping jacking method. The processes of segmented processing casting in factories, in-site splicing welding, two-segment integral hanging conveying installation and one-step welding completion in the air is adopted, the construction safety and the structure welding quality are ensured, the construction efficiency is improved, the construction progress is accelerated, and the design, processing and installation blanks of the large-scale steel structure of the underground engineering are filled.
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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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 THE 2ND ENG OF THE 12TH BUREAU GROUP OF CHINA RAILWAY
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