Erection method of reinforced concrete truss beam one-time casting support system

Abstract

The present invention relates to the field of building construction technology, and in particular to a method for erecting a one-time casting support system for reinforced concrete truss beams. The method utilizes the principle that section steel has excellent mechanical properties and superior performance to manufacture a section steel support frame for erecting a support system for reinforced concrete trusses. The method has the advantages of simple construction, convenient operation, high construction precision, guaranteed construction quality, shortened construction period, and achieved the purpose of reducing costs and increasing efficiency. The method is suitable for building construction projects, steel structure projects, municipal projects and other construction projects.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a method for erecting a reinforced concrete truss beam one-time casting support system. Background Art

[0002] Currently, in some large public buildings, to address the need for lightweight, long-span transfer beams, designs often utilize long-span reinforced concrete trusses. To ensure the integrity, consistency, and completeness of the trusses, the design drawings often require the trusses to be cast in one piece. Conventional fastener, bowl-hook, and disc-hook support systems often struggle to meet mechanical calculation requirements. Even if they do, they require excessive material consumption, resulting in slow construction and excessive loads on the next floor—all undesirable outcomes for those skilled in the art. Summary of the Invention

[0003] In response to the above-mentioned problems, the present invention discloses a method for erecting a one-time casting support system for reinforced concrete truss beams, so as to solve the problems in the prior art of reinforced concrete trusses in which conventional steel pipe fasteners do not meet mechanical calculation requirements, resulting in poor support stability and excessive deadweight of the frame when erecting the support system.

[0004] A method for erecting a reinforced concrete truss beam one-time casting support system, comprising the following steps:

[0005] A plurality of steel support frames are manufactured, each of which comprises an upper cross bar, a lower cross bar and two oppositely arranged vertical bars; the upper cross bar and the lower cross bar are fixedly arranged up and down between the two vertical bars, and the inner sides of the two vertical bars are vertically provided with transverse supports, the transverse supports are located between the upper cross bar and the lower cross bar, the spacing between the upper surface of the upper cross bar and the upper surface of the lower cross bar is equal to the spacing between the lower surface of the upper chord and the lower surface of the lower chord of the reinforced concrete truss beam, and the spacing between the bottom of the vertical bar and the upper surface of the lower cross bar is equal to the spacing between the lower floor plate and the lower surface of the lower chord;

[0006] When the lower floor is constructed, embedded parts are arranged on the lower floor;

[0007] Fixing a plurality of the steel support frames on the lower floor through the embedded parts, and arranging the plurality of steel support frames in parallel and at intervals;

[0008] An operation springboard is laid on the transverse supports of the plurality of steel support frames.

[0009] In some embodiments, a first diagonal brace is connected between the transverse support and the vertical rod adjacent to the transverse support.

[0010] In some embodiments, a reinforcing cross bar is fixedly provided between the two vertical bars, and the reinforcing cross bar is located below the lower cross bar.

[0011] In some embodiments, the reinforcing cross bar is located in the middle of the lower cross bar and the lower floor.

[0012] In some embodiments, a second diagonal brace is connected between the lower horizontal rod and the two vertical rods.

[0013] In some embodiments, the two second diagonal braces and the reinforcing crossbar form a triangular support structure.

[0014] In some embodiments, the upper cross bar, the lower cross bar, the reinforcement cross bar and the vertical bar are all square steel tubes.

[0015] In some embodiments, the transverse support is a channel steel.

[0016] In some embodiments, the embedded part is a steel plate.

[0017] In some embodiments, the operation springboard is a wooden springboard or a bamboo fence.

[0018] The above invention has the following advantages or beneficial effects:

[0019] The present invention discloses a method for erecting a one-time casting support system for reinforced concrete truss beams. The method utilizes the principle that section steel has excellent mechanical properties and superior performance to manufacture a section steel support frame for erecting a support system for reinforced concrete trusses. The method has the advantages of simple construction, convenient operation, high construction precision, guaranteed construction quality, shortened construction period, and achieved the purpose of reducing costs and increasing efficiency. The method is suitable for construction projects such as housing construction projects, steel structure projects, and municipal projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention and its features, configurations, and advantages will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not necessarily drawn to scale, emphasis being placed on illustrating the subject matter of the present invention.

[0021] Figure 1 This is a front view of the steel support frame in an embodiment of the present invention;

[0022] Figure 2 This is a front view of a reinforced concrete truss beam one-time casting support system according to an embodiment of the present invention;

[0023] Figure 3 It is a side view of a one-time casting support system for reinforced concrete truss beams in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0025] The present invention discloses a method for erecting a reinforced concrete truss beam one-time casting support system. Specifically, the method comprises the following steps:

[0026] Step S1, making a plurality of steel support frames 1, specifically, as Figure 1 As shown, the steel support frame 1 includes an upper cross bar 12, a lower cross bar 13 and two oppositely arranged vertical bars 11; the upper cross bar 12 and the lower cross bar 13 are fixedly arranged between the two vertical bars 11, and the inner sides of the two vertical bars 11 are vertically provided with a transverse support 14, which is located between the upper cross bar 12 and the lower cross bar 13. The spacing between the upper surface of the upper cross bar 12 and the upper surface of the lower cross bar 13 is equal to the spacing between the lower surface of the upper chord and the lower surface of the lower chord of the reinforced concrete truss beam 2, and the vertical bar 11 is perpendicular to the vertical bar 11. The distance between the bottom and the upper surface of the lower cross bar 13 is equal to the distance between the lower bottom plate 3 and the lower surface of the lower chord (the lower bottom plate 3 is the basement roof located below the reinforced concrete truss beam 2, that is, the lower bottom plate 3 is the floor slab), so that when in use, the upper cross bar is just below the position of the upper chord of the truss beam for support in the process of forming the upper chord, and the lower cross bar is just below the position of the lower chord for support in the process of forming the lower chord and web of the truss beam, thereby achieving a good supporting effect.

[0027] In a preferred embodiment of the present invention, a first diagonal brace 16 is connected between the transverse support 14 and the vertical rod 11 adjacent to the transverse support 14 to make the transverse support more stable.

[0028] In a preferred embodiment of the present invention, a reinforcing cross bar 15 is fixedly arranged between the two vertical bars 11, and the reinforcing cross bar 15 is located in the middle position of the lower cross bar 13 and the lower bottom plate 3 to make the steel support frame 1 more stable; in addition, a second diagonal brace 17 is connected between the lower cross bar 13 and the two vertical bars 11, so that the connection between the lower cross bar 13 and the two vertical bars 11 is more stable, and the two second diagonal braces 17 and the reinforcing cross bar 15 form a triangular support structure, so that the steel support frame 1 is more stable.

[0029] In a preferred embodiment of the present invention, the upper cross bar 12, the lower cross bar 13, the reinforcing cross bar 15 and the vertical bar 11 are all square steel tubes, the second diagonal brace 17 is also a square steel tube, and the transverse support 14 and the first diagonal brace 16 are channel steels.

[0030] In a preferred embodiment of the present invention, the embedded part 4 is a steel plate.

[0031] In a preferred embodiment of the present invention, the operating springboard 5 is a wooden springboard or a bamboo fence.

[0032] It should be noted that the aforementioned steel support frame 1 is assembled through cutting, connection, polishing, and welding according to the design drawings. It is constructed from commercially available steel pipes, channel steel, and metal springboards. Mechanical calculations should be performed to ensure sufficient strength. Connections should be fully welded, with a weld height hf ≥ 8mm, to withstand the vibration loads of the concrete truss beam during pouring. Machined parts should be polished and smooth to prevent scratches. The overall structure should be securely connected, straight, and stable. Cut and welded parts should be painted with anti-rust paint, and the bottom should be kept dry and free of water.

[0033] Step S2: When constructing the lower floor 3, embedded parts 4 are provided on the lower floor 3. The embedded parts 4 are embedded steel plates.

[0034] Specifically, when the reinforcement is tied to the lower floor 3 , the embedded steel plates are laid out at fixed points to serve as the connection base of the steel support frame 1 .

[0035] Step S3: fix a plurality of steel support frames 1 on the lower floor 3 through embedded parts 4, and the plurality of steel support frames 1 are arranged in parallel and at intervals.

[0036] Specifically, after the strength of the lower floor 3 meets the requirements, the steel support frame 1 is hoisted and straightened, and the bottom of the vertical rod 11 of the steel support frame 1 is welded to the embedded part 4, so as to fix the steel support frame 1 on the lower floor 3.

[0037] Step S4, laying an operation springboard 5 on the transverse support 14 of the plurality of steel support frames 1, the operation springboard 5 is a wooden springboard or a bamboo fence, thereby completing the construction of the reinforced concrete truss beam 2 one-time casting support system. Figure 2 and 3 The structure shown.

[0038] Specifically, after all the section steel support frames 1 are installed, they are transversely combined and connected into a whole, and the operation springboard 5 is laid on the transverse supports 14 of the plurality of section steel support frames 1 .

[0039] Afterwards, the quadratic steel pipe can be laid on the operation springboard 5, and then the reinforced concrete truss beam 2 template can be installed and laid, and then the steel bar construction and concrete pouring process can be carried out, so as to complete the one-time pouring of the reinforced concrete truss beam 2.

[0040] In summary, the method for erecting the reinforced concrete truss beam one-time casting support system of the present invention has at least the following advantages or beneficial effects:

[0041] 1. By adopting the steel support frame, the original use of the buckle frame or steel pipe buckle frame is greatly reduced, saving materials;

[0042] 2. Each steel support frame can be made according to actual needs to adapt to truss beams at different angles;

[0043] 3. Only one team is needed for continuous construction, which greatly reduces labor loss and the efficiency is three times that of ordinary frames;

[0044] 4. Simple structure and common materials, easy and quick to use, high safety and stability,

[0045] 5. It is suitable for the working environment of the construction site, easy and quick to operate, effectively reducing the risk of safety accidents, saving construction time, reducing costs and increasing efficiency.

[0046] Those skilled in the art should understand that they can implement variations by combining the prior art with the above embodiments, which will not be described in detail here. Such variations do not affect the essence of the present invention and will not be described in detail here.

[0047] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A method for erecting a reinforced concrete truss beam one-time casting support system, characterized in that: The steps include: The cross bar is fixedly mounted on the upper and lower sides of the support frame, and the cross bar is fixedly mounted on the support frame, wherein the cross bar is fixedly mounted on the upper and lower sides of the support frame, and the cross bar is fixedly mounted on the support frame. When the lower floor is constructed, embedded parts are arranged on the lower floor; Fixing a plurality of the steel support frames on the lower floor through the embedded parts, and arranging the plurality of steel support frames in parallel and at intervals; An operation springboard is laid on the transverse supports of the plurality of steel support frames.

2. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 1, characterized in that: A reinforcing cross bar is also fixedly arranged between the two vertical bars, and the reinforcing cross bar is located below the lower cross bar.

3. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 2, characterized in that: The reinforcing cross bar is located in the middle of the lower cross bar and the lower floor.

4. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 2, characterized in that: A second diagonal brace is connected between the lower cross bar and the two vertical bars.

5. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 4, characterized in that: The two second diagonal braces and the reinforcing crossbar form a triangular support structure.

6. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 1, characterized in that: The upper cross bar, the lower cross bar, the reinforcement cross bar and the vertical bar are all square steel pipes.

7. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 1, characterized in that: The transverse support is a channel steel.

8. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 1, wherein: The embedded parts are steel plates.

9. The method for erecting a reinforced concrete truss beam one-time casting support system according to claim 1, characterized in that: The operation springboard is a wooden springboard or a bamboo fence.

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