Assembled form-removal-free steel bar truss floor support plate

A steel truss, formwork-free technology, applied in the direction of floors, structural elements, building components, etc., can solve the problems of building span limitation, span increase, and maximum span small, so as to shorten the construction period and construction cost, and achieve the degree of prefabrication High, the effect of increasing the contact length

Pending Publication Date: 2021-06-18
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this type of board are: the maximum span is small, which cannot meet the increasingly large span of the living room in residential houses, and the span of the building is limited; the increase in the span increases the thickness and cost of the floor slab, construction difficulty and the overall cost of the floor. It has also been greatly improved; it is heavy, and it is inconvenient to transport and install
However, the installation process of the detachable reinforced truss floor deck is relatively cumbersome, with many quality control points, slow construction speed, and a protective formwork removal process after pouring, resulting in high construction costs

Method used

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  • Assembled form-removal-free steel bar truss floor support plate
  • Assembled form-removal-free steel bar truss floor support plate
  • Assembled form-removal-free steel bar truss floor support plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see Figure 1-Figure 6 , the assembled formwork-free reinforced truss floor deck of this embodiment includes a concrete floor 1, a steel truss 2 and a connector 3, and the concrete floor 1 includes a flat floor part 1-1, and plate ribs 1- 3 and a prefabricated decorative layer 1-2, the steel truss 2 includes upper chord reinforcement 2-1, lower chord reinforcement 2-2, abdominal reinforcement 2-3, abdominal reinforcement bending section 2-4, support vertical reinforcement 2-5 and support The seat cross rib 2-6, the connecting piece 3 includes two parts, an upper fixing part 3-1 and a lower fixing part 3-2.

[0043] Embodiment 1 uses a pre-embedded connector 3 . Firstly, the concrete floor 1 is rolled in the factory, and the lower fixing part 3-2 of the connector 3 is pressed into the plate rib 1-3 according to the designed position before the initial setting of the concrete. After the concrete is solidified, the connector 3 can be connected with the concrete The botto...

Embodiment 2

[0045] see Figure 7-Figure 8 In this embodiment, the assembled formwork-free reinforced truss floor deck includes a concrete floor 1, a steel truss 2 and connectors 3, and the concrete floor 1 includes a flat floor part 1-1 and a prefabricated decorative layer 1-2. The steel bar truss 2 includes upper chord reinforcement 2-1, lower chord reinforcement 2-2, abdominal reinforcement 2-3, support vertical reinforcement 2-5 and support horizontal reinforcement 2-6, and the connector 3 includes an upper fixing part 3-1 and These two parts of lower fixing part 3-2.

[0046] Embodiment 2 adopts the connectors in the form of fasteners. First, the concrete floor 1 is rolled in the factory, and holes are opened at the design position of the connector 3 after the concrete reaches a certain strength; the upper fixing part 3-1 of the connector 3 is in the form of a special nut, that is, the screw hole does not penetrate ( It is a threaded blind hole), one end can be spot welded, and one ...

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Abstract

The invention discloses an assembled form-removal-free steel bar truss floor support plate. Each floor unit comprises a concrete bottom plate, a steel bar truss and a connecting piece, wherein the steel bar truss is connected with one surface of the concrete bottom plate through the connecting piece, a decorative layer is arranged on the other surface of the concrete bottom plate, and the end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates. The concrete bottom plates are adopted as formworks for pouring concrete during construction, and do not need to be removed after construction is completed, so that the construction period is shortened, and the construction cost is reduced; and meanwhile, the mechanical property of the concrete bottom plates is good, the concrete bottom plates can be used as a part of a floor structure, and are stressed cooperatively with concrete of an upper cast-in-place structure layer, so that the thickness of a floor plate can be reduced, the use amount of upper cast-in-place concrete and truss steel bars is reduced, and the floor clearance is increased. The end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates, so that the decorative layers of the adjacent plate ends can be overlapped and meshed with the concrete bottom plates when the floor support plates are laid in the construction stage, and slurry leakage is effectively avoided.

Description

technical field [0001] The invention relates to the field of civil buildings, in particular to an assembled formwork-free reinforced truss floor deck. Background technique [0002] With the development of prefabricated buildings, reinforced truss concrete laminated floors are usually used in the construction of civil building floor systems, that is, the lower half of the steel trusses and concrete are poured together to make prefabricated concrete slabs, and the post-cast concrete is poured during use. , and finally form a concrete laminated floor. The disadvantages of this type of board are: the maximum span is small, which cannot meet the increasingly large span of the living room of the civil residence, and the span of the building is limited; the thickness of the floor slab and the cost, construction difficulty and overall cost of the floor are limited by the increase of the span. Also thereupon greatly improved; Self-heavy, transportation and installation inconvenience...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/36E04C5/06
CPCE04B5/36E04C5/0627
Inventor 杨俊芬曲凯郝际平
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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