Construction method of prefabricated multi-ribbed cavity floor

By using prefabricated cement pressure plates and limited square tube fixed formwork, combined with the use of sponge strips and stainless steel strips, the problems of resource waste and leakage in existing construction methods have been solved, the stability and crack resistance of construction have been improved, and the Quick and accurate installation and overall integration of prefabricated dense rib panels.

CN112761292AInactive Publication Date: 2021-05-07CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD
5 Cites 5 Cited by

Patent Information

Application Number
CN202110226343.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2021-03-01
Publication Date
2021-05-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing prefabricated dense-ribbed cavity floor construction method relies on formwork and timber, resulting in a waste of resources. The formwork support is not tight and the concrete slurry easily seeps out.

Method used

Prefabricated cement pressure plates and limited square tubes are used to fix the formwork. Sponge strips and stainless steel strips are used to ensure close fit of the formwork to achieve rapid positioning and crack resistance. Factory-processed modular cavity formwork is used for support.

Benefits of technology

It reduces the waste of resources, improves the stability and crack resistance of the formwork, prevents concrete slurry from seeping out, and achieves rapid and accurate installation and overall integration of prefabricated dense rib panels.

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Abstract

The invention provides a construction method of a prefabricated multi-ribbed cavity floor, and belongs to the technical field of prefabricated multi-ribbed plate construction. The construction method of the prefabricated multi-ribbed cavity floor comprises the steps of full-hall scaffold building, main keel laying, overall leveling and the like. The construction method comprises the steps that S1, full-hall scaffold building is conducted, specifically, when a full-hall scaffold is built, vertical rods on the upper layer and the lower layer are required to be aligned, the vertical rods are uniformly arranged from the two sides of a cast-in-place ribbed beam, the vertical rods are arranged at the intersection positions of floor elastic bidirectional lines, and scaffold boards are laid under the vertical rods; S2, main keels are laid, specifically, when the main keels are installed, the main keels are required to be arranged in order and not to be inclined, and the two vertical rods at the intersection positions must abut against the main keels; and S3, overall leveling is conducted, specifically, after the main keels are laid, overall leveling is conducted according to control lines, and full-hall scaffold formworks are hoisted on the main keels. The cavity formworks are supported by placing the modularized cavity formworks which are machined and formed in a factory-like mode, and accurate and rapid installation of an upper plate of the prefabricated multi-ribbed plate is achieved by installing limiting square pipes.
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Citation Information

Patent Citations

  • Construction method of cast-in-place reinforced concrete dense ribbed beam floor

    CN104712141A

  • Cavity floor structure component, cavity floor structure construction method and cavity floor structure

    CN109779112A

  • Energy-saving dense-rib slab with cavities

    CN203145269U

  • Prevent rise structure of mould of cast in situ concrete breast

    CN206438769U

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    GB2378965A

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