Method for setting construction joint in bracket position at end of steel reinforced concrete column in sliding formwork technique
A technology of concrete columns and construction joints, applied in the processing of building materials, construction, building construction, etc.
Active Publication Date: 2016-07-20
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 setting a construction joint in a bracket position at the end of a steel reinforced concrete column in a sliding formwork technique. The method comprises the steps that firstly, carrying bars are fixed to the end of the steel reinforced concrete column of each layer; secondly, combined formworks are arranged on the two sides of a steel reinforced concrete beam; thirdly, a first sliding formwork and a second sliding formwork are arranged on the two sides of the steel reinforced concrete beam, and a folded formwork is arranged on the inner side of the second sliding formwork; fourthly, the first sliding formwork and the second sliding formwork are lifted to the position of the top surface in a sliding mode, and the folded formwork reaches the first sliding formwork in the opening direction and is connected with the first sliding formwork through plug pins; fifthly, tension screws are fixed to the combined formworks and the folded formwork; sixthly, concrete is poured; seventhly, the folded formwork is moved to the second sliding formwork in the retracting direction and connected with the second sliding formwork through plug pins; eighthly, the carrying bars are dug out, adhesive tape sealing threaded sleeves is opened, and the carrying bars are connected; and ninthly, the first sliding formwork and the second sliding formwork are lifted to the structural construction position of the next layer in a sliding mode, and the combined formworks are taken out and moved to the construction position of the next layer. By the adoption of the method, the construction speed of a structure is increased, and semi-mechanized construction is guaranteed.
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