CN209211734U - A kind of detachable steel bar truss floor support plate connection component and truss floor support plate structure - Google Patents

Abstract

The utility model discloses a detachable steel bar truss floor deck connecting component and a truss floor deck structure, which belong to the field of construction engineering assembly parts. The connecting assembly includes a connecting piece connected with the two lower chord reinforcing bars of the steel bar truss through a slot, and a fastener threaded with the connecting piece through the bottom formwork, the slot being adapted to the lower chord reinforcing bar; the connecting piece It is an independent piece connected with two lower chord reinforcing bars respectively, and a plastic gasket is arranged between the connecting piece and the bottom formwork, and the fastener passes through the plastic gasket and is screwed to the threaded hole at the bottom of the connecting piece. The truss floor deck structure is assembled by the bottom formwork and the steel truss through the above connecting components. When using, remove the fasteners and plastic spacers. The utility model can make the steel bar truss form protective layers with different thicknesses by replacing plastic spacers with different thicknesses, so as to meet the actual needs of various projects and expand the use range of the steel bar truss floor deck.

Description

A detachable steel truss floor deck connecting component and truss floor deck structure

technical field

The utility model belongs to the field of construction engineering assembly parts, in particular to a detachable steel truss floor deck connecting component and a truss floor deck structure assembled by the connecting component.

Background technique

With the gradual promotion of prefabricated buildings in China, the use of detachable steel truss floor decks for building floor platform construction has become a trend. The detachable steel truss floor deck comprises a truss and a bottom formwork. The truss is connected by a pair of lower chord steel bars and an upper chord steel bar through a pair of web steel bars to form a triangular column-like structure.

At present, the widely used connection method between the steel truss and the bottom mold is the joint action of special buckles or plastic connectors and bolts. After the bottom formwork is removed, the concrete surface is prone to serious scars or exposed plastic connectors, which affects the visual quality of the concrete. In addition, the above-mentioned buckles or plastic connectors are integrated with a pair of lower chord steel bars, and the thickness is a certain value, so it is impossible to form a protective layer of steel bars of different thicknesses according to the actual project, which severely limits the application range of floor decks.

Utility model content

The purpose of this utility model is to overcome the above-mentioned defects of the prior art, and to provide a detachable steel truss floor deck connecting assembly that can form a protective layer of steel bars with different thicknesses to meet the actual needs of various projects.

Another object of the present invention is to provide a truss floor deck structure assembled by the above-mentioned detachable steel bar truss floor deck connecting components.

The technical scheme of the present utility model is as follows:

A detachable steel truss floor deck connection assembly, comprising a connecting piece connected with two lower chord steel bars of a steel truss through a slot, and a fastener threaded through a bottom formwork and the connecting piece, the slot is connected to the lower chord The connecting piece is an independent piece that is connected with the two lower chord steel bars respectively, a plastic gasket is arranged between the connecting piece and the bottom formwork, and the fastener passes through the plastic gasket and the bottom of the connecting piece. Threaded holes.

As a further improvement of the technical solution of the present invention, the plastic gasket is provided with a groove, which facilitates the removal of the plastic gasket after the bottom template is removed.

The opening of the clamping groove is downward, which can prevent the lower chord steel bars from coming out of the clamping groove and affect the pouring of concrete.

The outer top of the connecting piece is inclined, and its inclination angle is 20-25°, which is convenient for the installation of the steel bar truss.

The inclination angle of the upper part of the inner side of the clamping groove is 10-15°, and the inclination angle of the lower part of the inner side of the clamping groove is 15-20°, which makes the fixing of the steel bar truss and the connecting piece more reliable, and prevents the steel bar truss from falling out of the clamping groove.

The fasteners are bolts, and the threaded hole at the bottom of the connecting piece is concentric with the clamping groove, which can ensure that the center of the threaded hole is consistent with the center of the bottom chord of the steel bar truss, so that the force of the connecting component is more reasonable.

The utility model adopts a truss floor plate structure assembled by the above-mentioned detachable steel truss floor plate connection components, which includes a bottom formwork and a steel truss. When in use, the fasteners and plastic spacers are removed, and polymer mortar is used to The concave part formed by the plastic gasket can be scraped off.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The present utility model improves the traditional one-piece connector structure interconnected with the two card slots into an independent connector structure with two separate card slots, and a plastic gasket is arranged between the connector and the bottom template, so that the fastening The plastic gasket is screwed to the threaded hole at the bottom of the connector. By replacing plastic gaskets with different thicknesses, the steel truss can form a protective layer of different thicknesses to meet the actual needs of various projects and expand the steel truss building. The scope of use of the carrier plate.

2. The detachable steel truss floor deck connection assembly of the present utility model has a reasonable structure design, saves time and labor for installation and disassembly, and reduces the labor intensity of workers, and due to the reasonable force of the connecting piece, it can play a role in the reinforcement of the steel truss and the bottom formwork. Better fixation, thereby improving the construction quality of construction projects.

3. The concrete poured by the reinforced truss floor deck structure formed by the connector assembly of the utility model will not appear the phenomenon of the connector being exposed, the appearance quality is high, and the economic benefit is remarkable.

Description of drawings

Fig. 1 is the assembly schematic diagram of the steel truss floor deck of the utility model;

Fig. 2 is the structural representation of the steel truss floor deck of the utility model;

Fig. 3 is the structural schematic diagram of the connecting piece in the connecting assembly of the reinforcing steel truss floor deck of the present invention;

Fig. 4 is the structural schematic diagram of the plastic gasket in the steel truss floor deck connecting assembly of the present invention;

Reference numerals: 1. Steel bar truss; 2. Bottom chord steel bar; 3. Connector; 4. Clip slot; 5. Plastic gasket;

Detailed ways

The structure of the steel-reinforced truss floor deck connecting assembly of the present invention and the process of assembling it to form the floor deck structure will be described in detail below with reference to the accompanying drawings. For those skilled in the art, any improvements made in the present embodiment without creative efforts are within the protection scope of the present invention.

Referring to Figures 1-4, a detachable steel truss floor deck connection assembly includes a connecting member 3 connected with the two lower chord steel bars 2 of a steel truss 1 through a slot 4, and a screw through the bottom formwork 6 and the connecting member 3. The connected fastener 7, the slot 4 opens downward, and is matched with the lower chord steel bar 2. Wherein, the connecting piece 3 is an independent piece connected with the two lower chord reinforcing bars 2 respectively, a plastic gasket 5 with a groove 4 is arranged between the connecting piece 3 and the bottom formwork 6, and the fastener 7 passes through the plastic gasket 5 Screw it into the threaded hole at the bottom of the connector 3. The threaded hole at the bottom of the connector 3 is concentric with the slot 4 . The top of the outer side of the connector 3 is inclined, and the inclination angle of the inclination angle is 10-15° with the inclination angle of the upper part of the inner side of the card slot 4 , and the inclination angle of the lower part of the inner side of the card slot 4 is 15-20°.

The truss floor deck structure assembled by the above-mentioned detachable steel bar truss floor deck connection components includes a bottom formwork 6 and a steel bar truss 1. During assembly, the processed steel bar truss 1 is properly compressed by external force, so that the two lower chord steel bars are properly compressed. 2 The distance is narrowed until it can enter into the slot 4 of the connector 3 . The steel bars 2 of the two lower chords of the steel bar truss 1 rebound and are automatically clamped in the slot 4 . Place a plastic washer 5 with a groove 4 at the bottom of the two connectors 3, and then pass the bolt as a fastener 7 through the bottom of the bottom formwork 6, and penetrate the plastic washer 5 and connect with the bottom of the connector 4. Threaded holes are screwed and tightened. After the concrete is poured, the bolts are unscrewed, the bottom formwork 6 is removed, and an electric drill is inserted into the groove 4 to remove the plastic gasket 5. After the plastic gasket 5 is removed, a depression 8 will be left on the bottom surface of the concrete. At this time, the concave part 8 can be scraped with polymer mortar to obtain a concrete product with a smooth bottom surface and good appearance.

Claims (7)

1. a kind of detachable steel bar truss floor support plate connection component, including what is connect with two lower edge reinforcing bar of steel bar girder by card slot Connector, and the fastener being spirally connected across end template and the connector, the card slot are adapted with lower edge reinforcing bar, feature Be: the connector be with the separate piece that connect respectively with two lower edge reinforcing bars, equipped with plastics between the connector and end template Gasket, fastener pass through the screw hole of the plastic spacer and connector bottom.

2. a kind of detachable steel bar truss floor support plate connection component as described in claim 1, it is characterised in that: the plastic mattress On piece is equipped with groove.

3. a kind of detachable steel bar truss floor support plate connection component as described in claim 1, it is characterised in that: the card slot is opened Mouth extends to obliquely downward on the inside of card slot.

4. a kind of detachable steel bar truss floor support plate connection component as claimed in claim 3, it is characterised in that: the connector Outside top inclination, and its tilt angle is 20-25 °.

5. a kind of detachable steel bar truss floor support plate connection component as claimed in claim 3, it is characterised in that: in the card slot The tilt angle of upper lateral part is 10-15 °, the tilt angle of card slot lower inside is 15-20 °.

6. a kind of detachable steel bar truss floor support plate connection component as claimed in claim 3, it is characterised in that: the fastener For bolt, the threaded hole and card slot of connector bottom are concentric.

7. a kind of truss floor support plate structure, including end template and steel bar girder, it is characterised in that: the truss floor support plate structure passes through Detachable steel bar truss floor support plate connection component as claimed in any one of claims 1 to 6 is assembled, in use, removing fastening Part and plastic spacer.