Construction method of box column self-compacting concrete
A technology of self-compacting concrete and construction method, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of difficult blanking, small cross-section, low efficiency, etc., and achieve the effects of speeding up the construction progress, good fluidity, and saving manpower
Inactive Publication Date: 2019-05-17
CHINA RAILWAY GUANGZHOU ENG GRP CO LTD +1
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Problems solved by technology
According to the traditional construction method, it is labor-intensive and time-consuming, and due to the small cross-section of the outsourcing concrete structure, the longitudinal reinforcement and stirrups, the outsourcing concrete is poured directly from the steel column, which is difficult to cut and inefficient, and it is easy to produce honeycomb, pitting and hollow
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[0029] refer to Figure 1 to Figure 2 , the present invention is a construction method of box column self-compacting concrete, comprising the following steps:
[0030] (1) Design and deepening of box columns
[0031] Detailed design of box-shaped columns: According to the size of the box-shaped columns with top openings in the design drawings, design four openings 20 in the middle of the bottom of the four steel side plates 10 of the box-shaped columns;
[0032] Cutting hole: In the side plate 10 of blanking, a plurality of pegs 30 are welded and fixed, and the reserved hole 20 is set out, and the side plate 10 is cut to form a hole 20. After the cutting is completed, the hole 20 is cut. Grinding, grinding can avoid hindering the flow of self-compacting concrete when pouring concrete;
[0033] Welding stiffeners: Weld two stiffeners 40 on both sides of the hole 20 of each box-shaped column; when welding, the long sides are welded on both sides of the reserved jacking hole, a...
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The invention discloses a construction method of box column self-compacting concrete. The method comprises the steps of forming a reserved hole in the bottom of a box column, preparing self-compactingconcrete, pouring the self-compacting concrete into the interior of the box column once through a pump, and performing one-step forming inside and outside the reserved hole. The method sufficiently utilizes the characteristic of good flowability of the self-compacting concrete, solves quality defect caused by two-step concrete pouring to outer wrapped concrete steel columns, two-step pouring is realized, manpower can be effectively saved, the construction progress is quickened, and the method is safe and efficient. The method is applied to the technical field of building operations.
Description
technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method of box-shaped column self-compacting concrete. Background technique [0002] In the traditional construction method, the concrete inside and outside the steel pipe is poured separately. According to the traditional construction method, it is labor-intensive and time-consuming, and due to the small cross-section of the outsourcing concrete structure, the longitudinal reinforcement and stirrups, the outsourcing concrete is poured directly from the steel column, which is difficult to cut and inefficient, and it is easy to produce honeycomb, pitting and hollow. Contents of the invention [0003] The object of the present invention is to provide a construction method of box-shaped column self-compacting concrete that saves materials and can be formed at one time inside and outside. [0004] The technical scheme that the present invention takes i...
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IPC IPC(8): E04C3/34E04C3/32
Inventor 朱勇林定学李家宏朱桢华李晓昇张川韩岗葛霖
Owner CHINA RAILWAY GUANGZHOU ENG GRP CO LTD