CN106948533A - A kind of assembled floor - Google Patents

Abstract

The invention proposes a prefabricated floor, which is composed of steel bars and concrete. Channel steel is arranged around the floor. The steel bars in the floor are welded to the upper and lower outer surfaces of the channel steel, and are integrated with the channel steel, and then poured with concrete to form a slab. . In addition, a cavity is reserved near the two sides of the short side of the floor, and a steel pipe is installed inside, which is connected to the beam through a pin. The connection of the long side of the floor slab is sealed by setting thin steel strips on the lower edge of two adjacent channel steels, welding the upper edge intermittently, and post-grouting to integrate the two slabs and hide the internal structure. Using this kind of floor slab, its structural strength is higher than that of ordinary reinforced concrete floor slabs. The connection of two adjacent channel steels is continuous to the steel bars, and is equivalent to a built-in I-shaped steel beam, which does not occupy space and improves the bearing capacity of the structure. Power, and assembled construction, simple operation, has great application value.

Description

A prefabricated floor

technical field

The invention designs an assembled floor slab, which belongs to the field of building components.

Background technique

As the country puts forward the requirements of building industrialization, all kinds of prefabricated floors emerge in endlessly. At present, the floors of buildings generally have problems such as poor overall rigidity, poor stability and earthquake resistance, low load-bearing capacity, and high cost. , It is difficult to take measures at the joints of the floor slabs in the project, resulting in poor sound insulation of the building. The use of steel for the laminated floor slab formed by the floor slab can significantly improve the bearing capacity, stiffness, and seismic performance of the floor slab, but in fact, so much steel is not needed, which causes a waste of steel.

Contents of the invention

The purpose of the present invention is to provide a prefabricated floor slab. The present invention can not only solve the waste of steel materials in the prefabricated laminated floor slabs currently using steel materials, but also has the advantages of simple construction operation, good seismic performance, good overall performance, and saving steel materials. After the channel steel inside the floor is connected, it can form a structure similar to I-beam, which is equivalent to the embedded steel beam, which not only saves space but also improves the overall rigidity and bearing capacity of the floor. The difficulty in on-site installation of prefabricated floor slabs lies in the treatment of joints. The present invention solves this problem very well and ensures that the floor slabs have good sound insulation effect and good impermeability.

A prefabricated floor, characterized in that: it comprises a floor body (1), a channel steel (2) and a mouthed steel pipe (3); the mouthed steel pipe (3) is located on one side of the short side of the floor and has a side opening at the lower part, The main body of the floor (1) is provided with reinforcing bars (4) parallel to the direction of the long side or the short side; the channel steel (2) is located around the main body of the floor (1) and part of it is exposed, and the reinforcing bars (4) are welded to the channel steel (2) Above, the channel steel (2) and steel bars (4) are integrally poured with concrete;

The connection in the direction of the short side of the floor slab is connected with the I-beam (5), and the short sides of the two floors are placed on the I-beam (5), and the channel steel (2) is connected by intermittent welding Then in the steel pipe with mouth (3) hole, squeeze into pin (6) to penetrate the I-beam (5), the steel pipe with mouth (3) is grouted, and the mortar penetrates into the channel steel ( 2) connecting joints, so that the two floor slabs and the I-beam (5) are connected into one;

The connection in the direction of the long side of the floor is the connection between two floors, the long sides of the floor are spliced together, a steel bar (7) is set under the joint of the channel steel (2), and the connection of the channel steel (2) is still adopted Intermittent welding, and then the steel bar is connected to the lower seam of the channel steel (2) by intermittent welding, and then the on-site connection of the floor slab is realized by grouting and smoothing.

Beneficial effect

First of all, it overcomes the defects of the complex construction process of the prefabricated floor slab joints of traditional prefabricated steel structures, and realizes the floor slab connection through simple welding and grouting. After the connection, the floor slab joints have a better sound insulation effect. And the structure formed by the channel steel connection is similar to the I-beam, which is equivalent to the I-beam buried inside the floor. stability.

Description of drawings

Fig. 1 is a schematic diagram of a prefabricated floor of the present invention;

Fig. 2 is the top view of the assembled floor of the present invention;

Fig. 3 is A-A floor sectional structure schematic diagram of the present invention;

Fig. 4 is the sectional view of the C-C assembled floor joint of the present invention;

Fig. 5 is a cross-sectional view of the A-A assembled floor joint of the present invention;

Fig. 6 is a sectional view of the B-B assembled floor joint of the present invention;

In the figure, 1-floor main body, 2-channel steel, 3-steel pipe, 4-steel bar, 5-I-beam, 6-pin, 7-steel bar.

detailed description

As shown in the accompanying drawings, the prefabricated floor is composed of a floor main body (1), a channel steel (2), and a steel pipe (3) with a mouth in the reserved cavity. The mouthed steel pipe (3) is located on one side of the short side of the floor and has a side opening at the bottom, and the steel bar (4) parallel to the direction of the long and short sides is arranged in the main body of the floor (1). The channel steel (2) is located around the main body (1) of the floor slab and partly exposed, the steel bar (4) is welded to the upper surface of the channel steel (2), and the channel steel (2) and the steel bar (4) are integrally poured with concrete.

The connection in the direction of the short side of the prefabricated floor slab is connected with the I-shaped steel beam (5). Welding, then drive the pin (6) into the hole of the steel pipe with mouth (3) to penetrate the I-beam beam (5), grout the steel pipe with mouth (3), and the mortar penetrates into the groove through the opening of the steel pipe with mouth (3) Steel (2) connecting seam, thereby two floor slabs and I-beam (5) are connected as a whole.

The connection in the direction of the long side of the prefabricated floor is the connection between two floors. The long sides of the floors are spliced together. A steel bar (7) is arranged under the joint of the channel steel (2). The connection of the channel steel (2) Intermittent welding is still used, and then the steel bar (7) is connected to the lower seam of the channel steel (2) by intermittent welding, and then the on-site connection of the floor slab is realized by grouting and smoothing.

Claims (1)

1. A prefabricated floor, characterized in that: it comprises a floor body (1), a channel steel (2) and a mouthed steel pipe (3); the mouthed steel pipe (3) is located on one side of the short side of the floor and the lower part has a side Opening, the floor main body (1) is provided with steel bars (4) parallel to the long side or short side direction; the channel steel (2) is located around the floor main body (1) and part of it is exposed, and the steel bar (4) is welded to the channel steel ( 2) On the top, the channel steel (2) and the steel bar (4) are poured integrally with the concrete; The connection in the direction of the short side of the floor slab is connected with the I-beam (5), and the short sides of the two floors are placed on the I-beam (5), and the channel steel (2) is connected by intermittent welding Then in the steel pipe with mouth (3) hole, squeeze into pin (6) to penetrate the I-beam (5), the steel pipe with mouth (3) is grouted, and the mortar penetrates into the channel steel ( 2) connecting joints, so that the two floor slabs and the I-beam (5) are connected into one; The connection in the direction of the long side of the floor is the connection between two floors, the long sides of the floor are spliced together, a steel bar (7) is set under the joint of the channel steel (2), and the connection of the channel steel (2) is still adopted Intermittent welding, and then the steel bar is connected to the lower seam of the channel steel (2) by intermittent welding, and then the on-site connection of the floor slab is realized by grouting and smoothing.