Electrical pipeline fixing support for steel bar truss floor support plate and electrical pipeline fixing method

Abstract

The invention relates to an electrical pipeline fixing support for a steel bar truss floor support plate and an electrical pipeline fixing method.The electrical pipeline fixing support comprises a transverse plate, lifting plates are fixedly arranged at the two ends of the transverse plate, and the transverse plate and the two lifting plates form a U shape; the two lifting plates are respectively used for being fixedly connected with upper chord steel bars of two adjacent trusses in the steel bar truss floor support plate; a plurality of through holes T are formed in the transverse plate and the hanging plate in a dot-matrix mode, and the through holes T can allow bolts of the U-shaped pipe clamp to penetrate through; after installation, the distance H between the bottom face of the transverse plate and a bottom die in the steel bar truss floor support plate is larger than or equal to 30 mm. When the electrical pipeline is fixed, the electrical pipeline is placed on the transverse plate, and the electrical pipeline is bundled on the transverse plate by enabling a thin iron wire to penetrate through a proper through hole T in the transverse plate. The technical scheme is simple in structure, low in production cost, convenient to install and high in construction efficiency, and meets the fireproof standard of electrical pipeline laying.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical pipeline fixing of assembled buildings, and in particular relates to an electrical pipeline fixing bracket for a steel bar truss floor deck and an electrical pipeline fixing method. Background Art

[0002] For prefabricated steel structure buildings, the floor slabs are usually in the form of steel truss floor slabs, and the electrical pipelines are generally pre-buried in the steel truss floor slabs. Section 10.1.10 of the Code for Fire Protection Design of Buildings GB50016-2014 (2018 Edition) stipulates: "Fire distribution lines should meet the needs of continuous power supply in case of fire, and their laying should comply with the following provisions: 2 When concealed, they should be piped and laid in non-combustible structures, and the thickness of the protective layer should not be less than 30mm." The reason why the national standard gives such a regulation is that when concealed, the distribution lines are passed through metal conduits in structures with a protective layer thickness of more than 30mm, which is safer and more economical, and tests have shown that this laying can ensure that the lines continue to supply power in fires.

[0003] However, in current construction, for the convenience of fixing, the electrical pipelines are generally fixed in the steel truss floor deck by tying them to the upper and lower layers of the steel bars of the truss floor deck. This makes the pre-buried position of the electrical pipeline less than 30 mm from the floor surface, and the electrical pipelines are often penetrated by the drill bit.

[0004] In order to solve this technical problem, the Chinese utility model patent with publication number CN222295773U discloses a device to avoid drilling and damaging the electric wire pipe, which adopts a foam board pad on the galvanized iron sheet (that is, the bottom mold of the steel truss floor deck) to support the pre-buried electric wire pipe, and the height of the foam board pad is used to ensure that the distance between the electric wire pipe and the galvanized iron sheet is less than 30mm; and a bent metal sheet and a T-shaped plug rod are used to clamp the electric wire pipe and the foam board pad between the bent metal sheet and the galvanized iron sheet. Obviously, the structure is complex, the consumables are large, the installation process is cumbersome, and the T-shaped plug rod is exposed outside the galvanized iron sheet, which affects the appearance. Summary of the invention

[0005] The technical problem to be solved by the present invention is to make up for the deficiencies of the prior art and to provide an electrical pipeline fixing bracket for a steel bar truss floor deck and an electrical pipeline fixing method.

[0006] To solve the above technical problems, the technical solution of the present invention is: An electrical pipeline fixing bracket for a steel bar truss floor slab, comprising a transverse plate. Hanging plates are fixedly arranged at both ends of the transverse plate, and the transverse plate and the two hanging plates are configured into a U shape; the two hanging plates are respectively used for fixedly connecting with the upper chord steel bars of two adjacent trusses in the steel bar truss floor slab; a plurality of through holes T are arranged in a dot matrix on both the transverse plate and the hanging plates, and the size of the through holes T allows the bolts of the U-shaped pipe clamps to pass through; after installation, it satisfies that the distance H between the bottom surface of the transverse plate and the bottom formwork in the steel bar truss floor slab is ≥ 30 mm.

[0007] Further, a hook is provided at the upper end of the hanging plate, and the hook is used for hanging and connecting with the upper chord steel bar.

[0008] Further, longitudinal plates are provided on both sides of the transverse plate, and the longitudinal plates and the transverse plate are configured in a "cross" shape.

[0009] Further, a plurality of through holes T are also arranged in a dot matrix on the longitudinal plates.

[0010] Further, it is made by a process of first cutting and forming and then bending.

[0011] An electrical pipeline fixing method for a steel bar truss floor slab, using a plurality of electrical pipeline fixing brackets for a steel bar truss floor slab as described above, comprising the following steps: Step S1: According to the designed route of the electrical pipeline, arrange a plurality of electrical pipeline fixing brackets for a steel bar truss floor slab at a certain interval; place the electrical pipeline fixing brackets for a steel bar truss floor slab above the bottom formwork of the steel bar truss floor slab and between two adjacent trusses, make the transverse plate in a horizontal state, and make the distance H between the bottom surface of the transverse plate and the bottom formwork ≥ 30 mm; Step S2: Pass a thin iron wire through a suitable through hole T on the hanging plate and tie the hanging plate to the upper chord steel bars of two adjacent trusses; Step S3: Place the electrical pipeline on the transverse plate; Step S4: Pass a thin iron wire through a suitable through hole T on the transverse plate and tie the electrical pipeline to the transverse plate.

[0012] Further, replace Step S4 with Step 4A: Pass the bolt of the U-shaped pipe clamp through a suitable through hole T on the transverse plate and back the nut, and the U-shaped pipe clamp and the transverse plate jointly clamp the electrical pipeline.

[0013] The beneficial effects that the present invention can achieve are as follows: The electrical pipeline fixing bracket of this technical solution has a simple structure and low production cost; when used for embedding in a steel bar truss floor slab to fix electrical pipelines, the installation is convenient, the construction efficiency is high, the embedded distance between the electrical pipeline and the bottom formwork is guaranteed, and the fire protection specification for electrical pipeline laying is satisfied. Description of the Drawings

[0014] Figure 1It is a perspective view of the fixing bracket in the embodiment of the present invention.

[0015] Figure 2 It is a front view of the fixing bracket in the embodiment of the present invention.

[0016] Figure 3 It is a top view of the fixing bracket in the embodiment of the present invention.

[0017] Figure 4 It is a side view of the fixing bracket in the embodiment of the present invention.

[0018] Figure 5 It is a perspective schematic diagram of the fixing bracket installed on the steel bar truss in the embodiment of the present invention.

[0019] Figure 6 It is a main schematic diagram of the fixing bracket installed on the steel bar truss in the embodiment of the present invention.

[0020] Figure 7 It is a schematic diagram of the electrical pipeline fixed on the fixing bracket in a direction parallel to the steel bar truss in the embodiment of the present invention.

[0021] Figure 8 It is a schematic diagram of the electrical pipeline fixed on the fixing bracket in a direction inclined to the steel bar truss in the embodiment of the present invention.

[0022] In the figure: 1 - longitudinal plate, 2 - transverse plate, 3 - hanging plate, 4 - hook, 5 - through hole T, 6 - thin iron wire, 7 - electrical pipeline; 96 - upper chord steel bar, 97 - web bar steel bar, 98 - lower chord steel bar, 99 - bottom formwork. Detailed implementation manners

[0023] The present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0024] As Figure 5 and Figure 6 shown, the steel bar truss floor slab includes a number of parallel trusses. Each truss includes 1 upper chord steel bar 96 and 2 lower chord steel bars 98 arranged in a triangular shape. The upper chord steel bar 96 and the lower chord steel bar 98 are welded together by the web bar steel bar 97, and a bottom formwork 99 is welded below the web bar steel bar 97.

[0025] As Figures 1-4, An electrical pipeline fixing bracket for a steel bar truss floor slab is made by first cutting and then bending a stainless steel plate. It includes a cross plate 2, and hanging plates 3 are fixedly arranged at both ends of the cross plate 2. The cross plate 2 and the two hanging plates 3 are constructed into a U shape; longitudinal plates 1 are arranged on both sides of the cross plate 2, and the longitudinal plates 1 and the cross plate 2 are arranged in a "plus" shape; a number of through holes T5 are arranged in a dot matrix on the cross plate 2, the longitudinal plates 1 and the hanging plates 3, and the size of the through holes T5 can allow the bolts of the U-shaped pipe clamps to pass through. A hook 4 is provided at the upper end of the hanging plate 3, and the hooks 4 on the two hanging plates 3 are respectively used for hanging on the upper chord steel bars 96 of two adjacent trusses. After installation, it satisfies that the distance H between the bottom surface of the cross plate 2 and the bottom form 99 in the steel bar truss floor slab is H≥30mm.

[0026] As Figures 5-8 shown, the method for fixing electrical pipelines in the steel bar truss floor slab in this embodiment is as follows: Step S1: Arrange a plurality of electrical pipeline fixing brackets at a certain interval according to the designed direction of the electrical pipeline 7; place the electrical pipeline fixing brackets above the bottom form 99 of the steel bar truss floor slab, and hang them on the upper chord steel bars 96 of two adjacent trusses through the hooks 4. Located between two adjacent trusses, the cross plate 2 is in a horizontal state, and adjust to make the distance H between the bottom surface of the cross plate 2 and the bottom form 99 be H≥30mm.

[0027] Step S2: Pass a thin iron wire 6 through a suitable through hole T5 on the hanging plate 3 and tie the hanging plate 3 to the upper chord steel bars 96 of two adjacent trusses in the steel bar truss floor slab.

[0028] Step S3: Place the electrical pipeline 7 on the cross plate 2. When the direction of the electrical pipeline 7 is not parallel to the truss, it can also be supported on the longitudinal plate 1 at a certain angle at the same time to strengthen the support for the electrical pipeline 7, as Figure 8 shown.

[0029] Step S4: Pass a thin iron wire 6 through a suitable through hole T5 on the cross plate 2 and tie the electrical pipeline 7 to the cross plate 2.

[0030] Step S4 can also be replaced by Step 4A: Step 4A: Pass the bolt of the U-shaped pipe clamp (the U-shaped pipe clamp is an existing product on sale, so it will not be elaborated here) through a suitable through hole T5 on the cross plate 2 and back the nut. The U-shaped pipe clamp and the cross plate 2 jointly clamp the electrical pipeline 7, which is a conventional means for fixing the pipe material, so it is not shown in the figure.

[0031] The above is only one implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and retouches made without departing from the idea of the present invention are within the protection scope of the present invention.

Claims

1. An electrical pipeline fixing bracket for a steel bar truss floor deck, characterized by: The invention comprises a transverse plate (2), both ends of which are fixedly provided with hanging plates (3), the transverse plate (2) and the two hanging plates (3) being constructed in a U shape; the two hanging plates (3) are respectively used for being fixedly connected with the upper chord steel bars (96) of two adjacent trusses in the steel truss floor deck; the transverse plate (2) and the hanging plates (3) are both provided with a plurality of through holes T (5) in a lattice pattern, the through holes T (5) being large enough to allow the bolts of the U-shaped pipe clamp to pass through; after installation, the following conditions are met: the distance H between the bottom surface of the transverse plate (2) and the bottom mold (99) in the steel truss floor deck is ≥30 mm.

2. The electrical pipeline fixing bracket for the steel bar truss floor deck according to claim 1 is characterized by: A hook (4) is provided at the upper end of the hanging plate (3), and the hook (4) is used to be hooked to the upper chord steel bar (96).

3. The electrical pipeline fixing bracket for the steel bar truss floor deck according to claim 1 is characterized by: A longitudinal plate (1) is provided on both sides of the transverse plate (2), and the longitudinal plate (1) and the transverse plate (2) are arranged in a "cross" shape.

4. The electrical pipeline fixing bracket for the steel bar truss floor deck according to claim 3 is characterized by: The longitudinal plate (1) is also provided with a plurality of through holes T (5) in a lattice pattern.

5. The electrical pipeline fixing bracket for the steel bar truss floor deck according to claim 1 is characterized by: It is made by cutting and shaping first and then bending.

6. A method for fixing electrical pipelines for steel truss floor decks, characterized by: Using a plurality of electrical pipeline fixing brackets for steel bar truss floor decks as described in any one of claims 1 to 5 comprises the following steps: Step S1: arranging a plurality of electrical pipeline fixing brackets for the steel truss floor deck at certain intervals according to the design direction of the electrical pipeline (7); placing the electrical pipeline fixing brackets for the steel truss floor deck above the bottom form (99) of the steel truss floor deck and between two adjacent trusses, so that the cross plate (2) is in a horizontal state, and the distance H between the bottom surface of the cross plate (2) and the bottom form (99) is ≥30 mm; Step S2: using a thin iron wire (6) to pass through a suitable through hole T (5) on the hanging plate (3), and tying the hanging plate (3) to the upper chord steel bars (96) of two adjacent trusses; Step S3: placing the electrical pipeline (7) on the horizontal plate (2); Step S4: The electrical pipeline (7) is bundled on the transverse plate (2) by passing the thin iron wire (6) through the appropriate through hole T (5) on the transverse plate (2).

7. The method for fixing electrical pipelines for steel truss floor decks according to claim 6 is characterized in that: Step S4 is replaced by step 4A: the bolts of the U-shaped pipe clamp are passed through the appropriate through holes T (5) on the horizontal plate (2) and the nuts are fastened, and the U-shaped pipe clamp and the horizontal plate (2) jointly clamp the electrical pipeline (7).

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