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Formwork-erecting-free steel bar keel steel plate and concrete laminated slab and implementation method thereof

A reinforced keel and concrete technology, which is applied in the processing of floor slabs, building materials, building components, etc., can solve the problems of self-heavy weight of laminated slabs, inconvenient formwork support or formwork removal, etc. the effect of strength

Pending Publication Date: 2022-02-18
SEAZEN HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a formwork-free reinforced keel steel plate and concrete laminated slab and its implementation method, to solve the technical problems of the inconvenience of formwork support or formwork removal in floor construction and the excessive weight of the laminated slab

Method used

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  • Formwork-erecting-free steel bar keel steel plate and concrete laminated slab and implementation method thereof
  • Formwork-erecting-free steel bar keel steel plate and concrete laminated slab and implementation method thereof
  • Formwork-erecting-free steel bar keel steel plate and concrete laminated slab and implementation method thereof

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Embodiment approach

[0025] A method for implementing a formwork-free reinforced keel steel plate and a concrete laminated plate, comprising the following steps:

[0026] Step 1: Weld the steel bar trusses 2 to the bottom steel plate 1 at the prefabricated site. On the steel plate 1 and between the adjacent reinforcement trusses 2, a long reinforcing protrusion 7 is welded, and the bottom flange of the reinforcing protrusion 7 is welded to the bottom steel plate 1.

[0027] Step 2: hoist the bottom steel plate 1 that has been welded to the steel bar truss 2 and the reinforcing protrusion 7 to a predetermined position, fasten the edge of the adjacent bottom steel plate 1 through the upper groove 11 and the lower groove 12, and fasten the bottom steel plate 1 The width side is welded and fixed with the fixed beam angle steel 13 on the concrete beam, and then the two ends of the steel bar truss 2 are welded and fixed with the pre-embedded plate at the side of the concrete beam.

[0028] Step 3, weld...

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Abstract

The invention relates to a formwork-erecting-free steel bar keel steel plate and concrete laminated slab, which comprises a bottom steel plate, steel bar trusses fixed to the bottom steel plate and a concrete pouring layer poured on the bottom steel plate and the steel bar trusses, and the steel bar trusses are multiple rows of steel bar trusses which are arranged in parallel at intervals. The steel bar truss comprises web member steel bars, upper chord bars arranged at the tops of the web member steel bars and lower chord bars symmetrically arranged on the two sides of the bottoms of the web member steel bars, the bottoms of the web member steel bars are welded and fixed to the bottom steel plate, and the upper chord bars and the lower chord bars are welded and fixed to the web member steel bars at the joints with the web member steel bars; through-length reinforcing protrusions are arranged on the bottom steel plate and between the adjacent steel bar trusses, each reinforcing protrusion is of a hollow protrusion structure which is formed by bending a steel plate and provided with an n-shaped cross section, the bottom folded edges of the reinforcing protrusions are welded to the bottom steel plate, formwork erecting and formwork disassembling are not needed, and the self weight of the laminated slab is reduced.

Description

technical field [0001] The invention relates to the technical field of prefabricated building construction, in particular to a formwork-free reinforced keel steel plate and concrete laminated plate and an implementation method. Background technique [0002] During the construction of the building floor, it is often necessary to set up a full house of scaffolding to support the formwork. After the construction is completed, the scaffolding and formwork will be dismantled. What’s more, in some working conditions, due to the limitation of site conditions, the concrete slab pouring cannot be supported or removed. Large-span slabs still need to be used in conjunction with scaffolding support; the use of PC laminated slabs is heavy, and transportation and hoisting are inconvenient. In addition, formwork and scaffolding support are also required during construction, and the formwork is removed after the concrete is poured and hardened. Contents of the invention [0003] The obje...

Claims

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Application Information

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IPC IPC(8): E04B5/17E04G21/00E04B1/41
CPCE04B5/17E04G21/00E04B1/41
Inventor 任江
Owner SEAZEN HLDG CO LTD
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