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Fabricated two-way steel bar truss floorslab

A technology of steel truss and two-way steel bars, which is applied to floors, building components, buildings, etc., can solve the problems of large amount of steel used for bottom chord steel bars and web steel bars, limited stress performance of triangular steel bar trusses, and inconvenient construction, and achieves a reduction in The effect of transportation cost, high assembly efficiency and simple shape rules

Pending Publication Date: 2019-11-01
HANGZHOU TONGMSK DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the triangular truss is that it can form a stable structure in space. The disadvantage is that the amount of steel used for the lower chord reinforcement and the web reinforcement is large; before the floor concrete is poured, the mechanical performance of the triangular steel truss in a single direction is limited, and it is easy to form a large truss under the construction load. Under the action of normal service load, it is also necessary to arrange steel bars perpendicular to the steel bar truss. This part of the steel bars needs to be installed on the site, which is inconvenient for construction; Poor, easy to crack, it is necessary to add reinforcement on the slab surface during on-site construction

Method used

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  • Fabricated two-way steel bar truss floorslab
  • Fabricated two-way steel bar truss floorslab
  • Fabricated two-way steel bar truss floorslab

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A) Factory stage

[0050] Such as figure 1 As shown, the web steel bar 3 is prefabricated and welded at the contact point of the upper chord steel bar 1 and the lower chord steel bar 2, and the whole process is completed by automatic equipment. At both ends of the plane steel bar truss, a vertical support bar 4 is arranged, the upper part of the support bar 4 is aligned and welded with the end of the upper chord bar 1, the lower part of the support bar 4 is welded with the end of the lower chord bar 2, and the length of the lower end exceeds the lower chord bar 2 a certain distance. This creates a steel truss.

[0051] Such as Figure 6 As shown, a plurality of steel trusses are arranged in parallel to form a plane steel truss. After two sets of plane steel trusses are arranged in two directions, the upper chord steel bar 1 and the lower chord steel bar 2 of the steel bar truss in two directions are respectively welded and connected to form a well-shaped two-way stee...

Embodiment 2

[0059] A) Factory stage

[0060] Such as figure 1 As shown, the web steel bar 3 is prefabricated and welded at the contact point of the upper chord steel bar 1 and the lower chord steel bar 2, and the whole process is completed by automatic equipment. At both ends of the plane steel bar truss, a vertical support bar 4 is arranged, the upper part of the support bar 4 is aligned and welded with the end of the upper chord bar 1, the lower part of the support bar 4 is welded with the end of the lower chord bar 2, and the length of the lower end exceeds the lower chord bar 2 a certain distance. This creates a steel truss.

[0061] Such as Figure 6 As shown, a plurality of steel trusses are arranged in parallel to form a plane steel truss. After two sets of plane steel trusses are arranged in two directions, the upper chord steel bar 1 and the lower chord steel bar 2 of the steel bar truss in two directions are respectively welded and connected to form a well-shaped two-way stee...

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Abstract

The invention discloses a fabricated two-way steel bar truss floorslab. Two groups of plane steel bar trusses comprise multiple steel bar trusses arranged at intervals in parallel; two ends of each steel bar truss are carried / connected onto a steel beam / a concrete beam; upper string steel bars and lower string steel bars are arranged up and down in parallel and are welded into a whole through continuous wave-shaped web member steel bars; support steel bars are welded to two ends of the upper string steel bars and the lower string steel bars; the two groups of plane steel bar trusses are perpendicularly arranged in a crossing way so as to form a two-way steel bar truss; the upper string steel bars and the lower string steel bars of the two groups of plane steel bar trusses are welded and connected at respective perpendicular crosspoints; and a soffit formwork is fixedly connected to the bottom part of the two-way steel bar truss through nuts, or a bottom prefabricated superimposed concrete floorslab prefacricated layer is built on the bottom part of the two-way steel bar truss. The fabricated two-way steel bar truss floorslab provided by the invention is reliable in stress, economic, reasonable, high in industrialization degree and convenient to assemble, and materials can be recycled.

Description

technical field [0001] The invention relates to an assembled two-way reinforced truss floor slab, which belongs to the technical field of construction engineering. It can be widely used in various building structures. Background technique [0002] The construction speed of steel structure or prefabricated concrete structure is fast. In order to match the progress of steel structure and prefabricated concrete structure, floor slabs are usually in the form of industrialized floor slabs. Commonly used are reinforced truss floor decks and laminated concrete floors (without deck reinforcement). [0003] The steel truss floor deck is to weld the stressed steel bars in the floor into a steel truss in the factory, and the galvanized steel plate is welded with the steel truss in the factory to form a floor deck. The prefabricated steel truss floor deck is to weld the stressed steel bars in the floor into a steel truss in the factory, and punch the galvanized steel plate to form a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/36
CPCE04B5/36
Inventor 徐永斌
Owner HANGZHOU TONGMSK DESIGN CO LTD
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