Method for retaining construction joints at the position of corbels at the end of steel concrete columns in sliding form technology
A technology of concrete columns and construction joints, applied in the processing of building materials, construction, building construction, etc.
Active Publication Date: 2017-11-07
CHINA MCC20 GRP CORP
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Problems solved by technology
[0003] The present invention aims to overcome the defects of the prior art, and provides a method for retaining construction joints at the corbel position of steel concrete columns in the sliding form process, which solves the problem of retaining the construction joints at the corbel position of steel beams for the core tube structure using the sliding form process problems, optimized the construction technology of the structure, improved the construction speed of the structure and ensured the semi-mechanized construction
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[0022] Such as figure 1 and figure 2 Shown: A method for retaining construction joints at the position of the steel concrete column end corbel in the slipform process, including the following steps:
[0023] Step 1: Before the structural formwork support of the steel concrete column 1 on each floor, pre-fix the stress bars 3 of the steel concrete beam 2 that meet the anchorage length at the end of the column, and set I on the connecting section between the steel concrete beam and the steel concrete column Level straight threaded joint 4, the joint is wrapped and sealed with adhesive tape, and the steel concrete beam is an I-shaped steel;
[0024] Step 2: Set up combined formwork 5 on both sides of the steel concrete beam, such as image 3 and Figure 4 As shown, the combined formwork includes two symmetrical flat plates made of 3mm thick steel formwork. After the two flat plates are put together, a hollow I-shaped shape is formed in the middle. One side of the two flat pla...
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The invention relates to a method for retaining construction joints at the corbel position of a steel concrete column end in a sliding form process, comprising the steps of: 1: fixing stress bars at the steel concrete column end of each layer; 2: setting combined formwork on both sides of a steel concrete beam ; 3: The first and second sliding forms are provided on both sides of the steel concrete beam, and the folded formwork is arranged inside the second sliding form; 4: The first and second sliding forms are slid to the top position, and the folded formwork is opened along the Direction to the first sliding form and connecting with it through the bolt; Five: Fix the pull screw on the combined formwork and the folded formwork; Six: Concrete pouring; Seven: Bring the folded formwork to the second sliding form along the retracting direction and connect it through the bolt; Eight: Cut out the stress ribs, open the adhesive tape of the closed threaded sleeve, and connect the stress ribs; Nine: Slide the first and second sliding forms to the construction position of the next layer of structure, take out the combined formwork and move to the next layer Construction location. The invention improves the construction speed of the structure and ensures semi-mechanized construction.
Description
technical field [0001] The invention relates to a method for retaining construction joints at the corbel position of a steel concrete column end in a sliding form technology. Background technique [0002] At present, in the frame-core tube system with rigid steel concrete structure, a section of steel corbel is usually cantilevered at the end of the steel concrete concealed column of the core tube, and connected with the steel concrete column of the outer frame through a steel concrete beam to form a whole. Side force resistant structural system. For this structural system, it is difficult to adopt the sliding form technology of the core tube construction first, and the traditional formwork system is usually used to construct the outer frame columns and the core tube in the same layer as a whole. The construction speed of this kind of craft is slow, and there are too many overlapping processes in the construction layer, and the construction space is restricted. Contents o...
Claims
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IPC IPC(8): E04G21/00
Inventor 王纯岩
Owner CHINA MCC20 GRP CORP