CN103741857A - Floor system with U-shaped steel beams, steel bar trusses and floor bearing plates - Google Patents

Abstract

The invention relates to a U-shaped steel beam and steel bar truss floor deck system. The cross-sections of the U-shaped main steel beam and the U-shaped secondary steel beam in the steel beam floor are both U-shaped, and flanges are provided on both sides of the upper opening of the U-shaped main steel beam and U-shaped secondary steel beam; the steel truss and floor bearing The slab is laid on the steel beam floor, and the web foot of the steel truss is connected with the floor deck as a whole. The floor deck is disconnected at the upper opening of the U-shaped main steel beam and the U-shaped secondary steel beam; Transverse reinforcement, the horizontal reinforcement is perpendicular to the chord reinforcement of the steel truss and is bound and fixed with the chord reinforcement; U-shaped main steel girders, U-shaped secondary steel girders, and studs are welded at the overlapping parts of the flanges on both sides of the upper part of the U-shaped steel girder and the floor deck. The upper outer edge of the U-shaped main steel beam on the outer edge of the steel beam floor is welded with side panels. The structure of the invention is simple and reasonable, and can avoid the steps of temporary support, formwork support and formwork removal during floor pouring, and has large bearing capacity, large ductility, small beam section, and convenient and quick construction.

Description

U-shaped steel beam and steel truss floor deck system

technical field

The invention relates to a building floor system, in particular to a U-shaped steel beam and steel bar truss floor deck system.

Background technique

In the fields of public buildings, civil buildings, bridge constructions, etc., the existing structural systems of reinforced concrete and H-shaped steel outsourcing concrete need to erect temporary supports, set up formwork, lay bundled steel bars, pour concrete, formwork removal and other processes when pouring floors. , the operation is complex and difficult. Moreover, in the existing structural system of H-shaped steel and reinforced truss floor deck, the H-shaped steel section is very large, which increases the height of the floor, and because the H-shaped steel is completely exposed, heavy fireproofing treatment is required, which increases the cost.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a novel U-shaped steel beam and steel truss floor deck system, which has a simple and reasonable structure, and can avoid temporary supports and supports during floor pouring. Formwork and formwork removal and other processes, greatly reducing the laying and binding of steel bars, has the advantages of large bearing capacity, high ductility, small beam section, convenient and quick construction, etc.

According to the technical solution provided by the present invention: U-shaped steel beam and steel bar truss floor deck system, including steel beam floor, steel bar truss and floor deck, it is characterized in that: the steel beam floor is mainly composed of several columns, Several U-shaped main steel beams and several U-shaped secondary steel beams are assembled and welded. The cross sections of the U-shaped main steel beams and U-shaped secondary steel beams are all U-shaped. There are flanges on both sides of the upper opening; the steel truss and the floor deck are laid on the steel beam floor, the web legs of the steel truss and the floor deck are connected as a whole by spot welding, and the floor deck is on the U-shaped main The upper openings of the steel beams and U-shaped secondary steel beams are disconnected; the steel bar truss is pierced with transverse bars, and the transverse bars penetrated into the steel bar truss are perpendicular to the chord bars of the steel bar truss and are bound and fixed with the chord bars The overlapping parts of the upper both sides flanges of the U-shaped main steel girder and the U-shaped secondary steel girder and the floor deck are welded with studs, and the upper outer edge of the U-shaped main steel girder on the outer edge of the steel girder floor is welded With side panels.

As a further improvement of the present invention, the steel beam floor includes a column with a main beam corbel, a U-shaped main steel beam and a U-shaped secondary steel beam, and the U-shaped main steel beam is arranged between two adjacent columns , the two ends of the U-shaped main steel beam are respectively connected with a pair of main beam corbels opposite to the front and rigidly fixed, and there are several secondary beam corbels for connecting the U-shaped secondary steel beams on the U-shaped main steel beam; A number of parallel U-shaped secondary steel beams are arranged between the U-shaped main steel beams, and the two ends of the U-shaped secondary steel beams are respectively connected with a pair of secondary beam corbels opposite to the front and relatively fixed.

As a further improvement of the present invention, the flanges are laterally extended to both sides or centrally arranged.

As a further improvement of the present invention, the U-shaped main steel girder and the U-shaped secondary steel girder are composed of two symmetrically arranged J-shaped steels or Z-shaped steels that are symmetrically spliced.

As a further improvement of the present invention, both the U-shaped main steel girder and the U-shaped secondary steel girder are formed by direct rolling of steel plates.

As a further improvement of the present invention, several angle steels are welded at the upper openings of the U-shaped main steel beam and the U-shaped secondary steel beam.

Compared with the prior art, the present invention has the following advantages:

The present invention adopts the combination of U-shaped steel girders, steel bar trusses and floor decks, which can avoid the processes of temporary support, formwork support and formwork removal, and reduce most of the workload of steel bar laying and binding, effectively improving the overall building quality. The rigidity and ductility of the surface system can greatly reduce the construction workload of the building floor, can adapt to a large number of industrial production, and realize the industrialization and automation of buildings. Pouring concrete in this floor system improves the fire performance of the building, and less or no fire protection treatment can be done.

Description of drawings

Fig. 1 is a floor system diagram of an embodiment of the present invention.

FIG. 2 is an enlarged schematic diagram of part A in FIG. 1 .

Fig. 3 is a structural schematic diagram of the steel bar truss and the floor deck in Fig. 1 .

Figure 4 is a cross-sectional structure diagram of the floor and steel beams.

Detailed ways

The present invention will be further described below in conjunction with specific drawings and embodiments.

As shown in the figure: the U-shaped steel beam and steel bar truss 5 floor deck 6 floor system in the embodiment is mainly composed of steel beam floor, steel bar truss 5 and floor deck 6, and the steel beam floor is mainly composed of several Column 1, several U-shaped main steel beams 2 and several U-shaped secondary steel beams 8 are assembled and welded. 2 and the two sides of the upper opening of the U-shaped secondary steel beam 8 are provided with flanges 9 extending laterally to both sides; the steel bar truss 5 and the floor deck 6 are laid on the steel beam floor, and the web legs of the steel bar truss 5 and the The floor deck 6 is connected as a whole by spot welding, and the floor deck 6 is disconnected at the upper openings of the U-shaped main steel beam 2 and the U-shaped secondary steel beam 8; , the transverse bar 3 penetrating into the steel bar truss 5 is perpendicular to the chord bar 10 of the steel bar truss 5 and bound and fixed with the chord bar 10; A peg 7 is welded at the overlapping position of the edge 9 and the floor deck 6, and a side panel 4 is welded on the upper outer edge of the U-shaped main steel beam 2 on the outer edge of the steel beam floor. The flanges 9 in the illustrated embodiment are arranged to extend laterally to both sides, but in actual production applications, the flanges 9 may also be arranged in the center.

As shown in Figures 1 to 4, in the embodiment of the present invention, the steel beam floor is mainly composed of a column 1 with a main beam corbel, a U-shaped main steel beam 2 and a U-shaped secondary steel beam 8, and the U-shaped The main steel girder 2 is arranged between two adjacent upright columns 1, and the two ends of the U-shaped main steel girder 2 are respectively connected with a pair of front-facing corbels of the main beam and rigidly fixed, and the U-shaped main steel girder 2 is provided with several It is used to connect the secondary beam corbels of U-shaped secondary steel beams 8; several U-shaped secondary steel beams 8 parallel to each other are arranged between the U-shaped main steel beams 2 opposite to each other, and the two ends of the U-shaped secondary steel beams 8 are respectively It is connected and relatively fixed with a pair of secondary beam corbels opposite to the front.

In the present invention, the U-shaped main steel girder 2 and the U-shaped secondary steel girder 8 are both composed of two symmetrically arranged J-shaped steels or Z-shaped steels, which are symmetrically spliced, or formed by direct rolling of steel plates. Several angle steels 11 are welded at the upper openings of the U-shaped main steel beam 2 and the U-shaped secondary steel beam 8 to improve the structural strength of the entire floor system. During specific application, concrete 9 is poured in the above-mentioned U-shaped steel beam and steel bar truss 5 floor deck 6 floor system, forming a U-shaped steel beam steel bar truss 5 floor deck 6 and concrete 12 composite floor system, improving To improve the fire performance of the building, less or no fire protection treatment can be done.

Claims (6)

1.U section steel beam and steel bar truss floor support plate floor system, comprise girder steel flooring, steel bar girder (5) and floor support plate (6), it is characterized in that: described girder steel flooring is mainly by some columns (1), some U-shaped main girder steels (2) and assembled being welded to form of some U-shaped girder steels (8), the cross section of described U-shaped main girder steel (2) and U-shaped girder steel (8) is all U-shaped, and the upper opening both sides of U-shaped main girder steel (2) and U-shaped girder steel (8) are provided with the edge of a wing (9); Described steel bar girder (5) and floor support plate (6) are laid on girder steel flooring, the web member pin of steel bar girder (5) and floor support plate (6) are connected as a single entity by spot welding, and described floor support plate (6) disconnects at the upper opening place of U-shaped main girder steel (2), U-shaped girder steel (8); In described steel bar girder (5), be equipped with horizontal bar (3), penetrate the string muscle (10) of horizontal bar (3) in described steel bar girder (5) and steel bar girder (5) perpendicular and tie up fixing with string muscle (10); Top two side wing edges (9) of described U-shaped main girder steel (2), U-shaped girder steel (8) and the overlapping part place of floor support plate (6) are welded with peg (7), at the upper outside edge joint weld of the U-shaped main girder steel (2) of girder steel flooring outer ledge, are connected to side coaming (4).

2. U-shaped girder steel as claimed in claim 1 and steel bar truss floor support plate floor system, it is characterized in that: described girder steel flooring comprises with the column (1) of girder bracket, U-shaped main girder steel (2) and U-shaped girder steel (8), U-shaped main girder steel (2) is arranged between two adjacent columns (1), U-shaped main girder steel (2) two ends are connected and rigidly fix with the girder bracket of a pair of vis-a-vis respectively, and U-shaped main girder steel (2) is provided with some for connecting the secondary beam bracket of U-shaped girder steel (8); Some U-shaped the girder steels (8) that are parallel to each other are being set between the U-shaped main girder steel (2) of vis-a-vis, and U-shaped girder steel (8) two ends connect with the secondary beam bracket of a pair of vis-a-vis respectively and are relative fixing.

3. U-shaped girder steel as claimed in claim 1 and steel bar truss floor support plate floor system, is characterized in that: the described edge of a wing (9) arrange or arrange between two parties to both sides lateral extension.

4. U-shaped girder steel as claimed in claim 1 and steel bar truss floor support plate floor system, is characterized in that: the main girder steel of described U-shaped (2) and U-shaped girder steel (8) are all comprised of two symmetrically arranged J shaped steel or the symmetrical splicing of Z-shape steel.

5. U-shaped girder steel as claimed in claim 1 and steel bar truss floor support plate floor system, is characterized in that: the main girder steel of described U-shaped (2) and U-shaped girder steel (8) are all to adopt steel plate Direct Rolling to form.

6. U-shaped girder steel as claimed in claim 1 and steel bar truss floor support plate floor system, is characterized in that: the upper opening place of described U-shaped main girder steel (2) and U-shaped girder steel (8) is welded with some angle steel (11).

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