Strengthening method of outer formwork of super thick concrete shear wall
A technology for concrete shear walls and outer formwork, which is applied in the field preparation of formwork/formwork/working frame connectors, walls, and building components, which can solve the problems of difficult reinforcement of the outer formwork, and achieve convenient construction and convenience. The effect of the operation
Active Publication Date: 2021-05-25
广西建工集团第二安装建设有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method for strengthening the outer formwork of an ultra-thick concrete shear wall in view of the above-mentioned defects in the prior art. It is difficult to strengthen the outer formwork at the corner of the shear wall, so as to ensure that the formwork does not deform, so that the cross-sectional size of the concrete member meets the requirements of the acceptance code
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[0017] Such as Figure 1 to Figure 4 Shown, the super-thick concrete shear wall outer formwork reinforcement method of the present invention comprises the following steps:
[0018] (1) Pre-embed the reinforcement of the core column when pouring concrete on the floor, ground or raft; the cross-section of the core column is square, and the reinforcement of the core column is also arranged as a square. The thickness of the wall and the reinforcement determine the section size of the core column, the main reinforcement of the core column and the depth of the main reinforcement embedded in the floor, ground or raft foundation. The greater the thickness of the shear wall, the greater the cross-sectional size of the core column, the main reinforcement of the core column and the depth of the main reinforcement embedded in the floor, ground or raft foundation, as long as it can meet the force and strength requirements. The pre-embedded steel bars in the core column ensure that their p...
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The method for strengthening the outer formwork of the super-thick concrete shear wall of the present invention includes (1) pre-embedding the core column reinforcement when pouring floor, ground or raft concrete; (2) binding the core column reinforcement with stirrups; (3) installing the core column reinforcement Install the formwork of the core column outside; (4) pour the concrete of the core column and maintain it, and then remove the formwork of the core column; (5) make a "U"-shaped fixing hoop; (6) install the outer formwork of the shear wall and the "U"-shaped fixing hoop; (7) Strengthen and adjust the external formwork of the shear wall. The method of the present invention effectively solves the problem that the outer formwork is difficult to reinforce at the corner of the extra-thick concrete shear wall adjacent to the outside during the construction process of the ultra-thick concrete shear wall, ensures that the formwork is not deformed, and makes the cross-sectional size of the concrete member reach acceptance specification requirements.
Description
technical field [0001] The invention relates to the technical field of building construction, in particular to a reinforcement method for an outer formwork of an ultra-thick concrete shear wall on the outer side. Background technique [0002] For some buildings with special requirements such as radiation protection requirements, the outer walls are made of reinforced concrete shear walls with a thickness of more than 1.0 meters. When strengthening the external formwork of concrete shear walls, the pull bolts are generally used for reinforcement. However, for super-thick concrete shear walls with a concrete thickness of more than 1.0 meters, it is not possible to use parallel bolts at the corners to reinforce the outer formwork of the shear wall. If the outer side of the shear wall is empty, there is no reliable and stable fulcrum to support the outer formwork of the shear wall, and it is difficult to effectively ensure that the section size and concrete strength of the conc...
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IPC IPC(8): E04G17/02E04B2/64E04B2/66
CPCE04B2/64E04B2/66E04G17/02
Inventor 陈钰果阳茜莫雄清龙语思韦鸿梅梁长善刘竞立
Owner 广西建工集团第二安装建设有限公司