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Vertical bar extending and back-adjusting installation method for precast concrete composite slab

A technology of prefabricated concrete and installation method, applied in the direction of floor slab, building material processing, building components, etc., can solve the problem of grout leakage at the joint of beam and plate, and achieve the effect of preventing grout leakage, reducing manual workload and avoiding collision.

Pending Publication Date: 2019-11-26
福建省二建建设集团有限公司 +1
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Problems solved by technology

The traditional method is to insert the beard tendon obliquely into the beam when the laminated slab is hoisted. Often the laminated slab will rub and destroy the "foam rubber strip" on the edge of the beam, resulting in grout leakage at the joint between the beam and the slab

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  • Vertical bar extending and back-adjusting installation method for precast concrete composite slab
  • Vertical bar extending and back-adjusting installation method for precast concrete composite slab
  • Vertical bar extending and back-adjusting installation method for precast concrete composite slab

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Embodiment Construction

[0027] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0028] Such as Figure 1~11 As shown, an installation method for vertical reinforcement and callback of precast concrete laminated slabs, the installation method includes the following steps: (1) bending the beard tendons 2 at both ends of the laminated slab 1 upward by 90 degrees; (2) arranging the beam formwork 3 and wooden formwork 4, foam glue strips 6 are set on the upper surface of the wooden formwork at the edge of the beam forming cavity 5 of the beam forming cavity; (3) The beam forming cavity is placed with a reinforcement cage, and the beam reinforcement is first bound according to the traditional method, and the laminated board is transported Go to the site for vertical hoisting and installation. Because the beard tendons are bent in advance, even t...

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Abstract

The invention relates to a vertical bar extending and back-adjusting installation method for a precast concrete composite slab. The installation method includes the following steps that (1), horizontal reinforcing bars of two ends of the composite slab are bended upwards for 90 degrees; (2) a beam formwork and a wood formwork are arranged, and a foam rubber strip is arranged on the upper surface of the wood formwork on the edge of a cavity opening of a beam molding cavity of the beam formwork; (3) a reinforcing cage is placed into the beam molding cavity, according to a traditional method, beam steel is tied up firstly, and the composite slab is transported to a site for vertical lifting and placement; (4) the horizontal reinforcing bars of two ends of the composite slab are bended to return to a horizontal state; and (5) then concrete pouring is conducted according to a conventional method and maintained for a period of time. The rapid installation of the composite slab can avoid collision between the composite slab horizontal reinforcing bars and top beam longitudinal bars of a frame beam so as to speed up construction efficiency and reduce the manual workload, at the same time,tilting installation is not needed, in the hoisting process of the composite slab, and the friction between the composite slab and the foam rubber strip is avoided so as to prevent the leakage of slurry of concrete during pouring of the beam and the composite slab.

Description

technical field [0001] The invention relates to an installation method for vertical ribbing and callback of prefabricated concrete composite slabs. Background technique [0002] Prefabricated concrete buildings refer to reinforced concrete structures that are partially or completely assembled with prefabricated concrete components in the main structure. In order to ensure that the overall mechanical performance of the prefabricated reinforced concrete structure is the same as that of the whole cast structure, it is necessary to adopt corresponding reliable construction measures and construction methods to ensure that the prefabricated parts, cast-in-place parts, nodes, etc. in the prefabricated structure can work together, and ensure that Its mechanical performance is equal to or higher than that of the monolithic structure. [0003] At present, beams and columns are constructed using cast-in-place, and slabs are constructed using prefabricated laminated slabs, which is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/17E04G21/00
CPCE04B5/17E04G21/00
Inventor 鲍丹宇高新宇叶帝江赵子钦黄其敏庄金平陈剑星
Owner 福建省二建建设集团有限公司
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