Operating platform suitable for tensioning longitudinal prestressed tendons of continuous beams

Abstract

The utility model relates to the technical field of continuous beam construction, and particularly discloses an operation platform suitable for tensioning a longitudinal prestressed tendon of a continuous beam. The platform comprises two brackets, a platform body is fixed to the two brackets, the platform further comprises a pull rod used for fixing the brackets to a web at the end of a beam body, the pull rod penetrates through the web at the end of the beam body, and the two brackets are fixedly connected to the two ends of the pull rod respectively. The platform is convenient to disassemble and can be recycled, the platform and the beam body are directly connected, platform shaking caused by temporary loads generated in the tensioning operation process can be reduced, and the tensioning quality and construction safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous beam construction, and more specifically, to an operating platform suitable for the tensioning of longitudinal prestressed tendons of continuous beams. Background Art

[0002] During the construction of continuous beams, it is usually necessary to tension the longitudinal prestressed tendons. The traditional longitudinal prestress tensioning platform for continuous beams is generally arranged on the cross beam at the end of the beam body. The operating platform is lowered to the web at the end of the beam body through devices such as chain hoists and walking wheels for tensioning. The connection between the operating platform and the beam body is unstable, and the temporary load generated during the tensioning operation is likely to cause the platform to shake, affecting the tensioning quality and construction safety. Summary of the Utility Model

[0003] The utility model provides an operating platform suitable for the tensioning of longitudinal prestressed tendons of continuous beams, which can overcome certain or some defects of the prior art.

[0004] An operating platform suitable for the tensioning of longitudinal prestressed tendons of continuous beams according to the utility model includes two brackets, a platform main body is fixed on the two brackets, and further includes a pull rod for fixing the brackets on the web at the end of the beam body. The pull rod passes through the web at the end of the beam body, and the two brackets are respectively fixedly connected to both ends of the pull rod.

[0005] By the utility model, when it is necessary to tension the longitudinal prestressed tendons, the operating platform is directly fixed to the beam body by using the pull rod to pass through the pull rod hole on the web at the end of the beam body and the through hole on the bracket of the operating platform. The construction workers perform the tensioning operation on the operating platform.

[0006] The direct connection between the operating platform and the beam body greatly reduces the shaking of the platform caused by the temporary load generated during the tensioning operation, improves the tensioning quality and construction safety.

[0007] Preferably, the bracket includes a support cross bar and a reinforcing diagonal brace. The reinforcing diagonal brace is arranged below the support cross bar and intersects with the support cross bar. The reinforcing diagonal brace and the support cross bar are connected by bolts.

[0008] By the utility model, the bracket is the main body for carrying the operating platform. The support cross bar and the reinforcing diagonal brace are arranged in a triangle, which increases the structural stability. Both the support cross bar and the reinforcing diagonal brace are made of channel steel. The support cross bar and the reinforcing diagonal brace are connected by high-strength bolts. Its own strength is relatively high, which can support the operating platform and the possible loads on the operating platform and is convenient for disassembly and recyclable use, reducing the welding and maintenance costs, and having better economy.

[0009] Preferably, a plurality of cross beams are arranged in parallel and connected between the two brackets.

[0010] With the present utility model, the cross beam is the load-bearing part of the platform main body. Multiple cross beams are arranged in parallel to connect two brackets, enhancing its own strength and stability.

[0011] Preferably, at least two nuts are provided at both ends of the tie rod and are screwed onto the tie rod itself. The nuts at both ends clamp the bracket and the end web of the beam body.

[0012] With the present utility model, the combination of high-strength nuts and the tie rod provides very high connection strength, can withstand large tensile and shear forces, increasing the structural strength; the nuts can be quickly screwed onto the tie rod, accelerating the construction progress and improving work efficiency; when disassembly is required, the nuts can be easily removed from the tie rod, facilitating maintenance and replacement; using high-strength nuts for connection can reduce welding work and reduce quality and durability problems caused by welding; compared with welded connections, the connection state of nuts is easier to inspect and is also convenient for daily maintenance.

[0013] Preferably, the platform main body includes a steel plate arranged above multiple cross beams, and a guardrail is provided above the steel plate.

[0014] With the present utility model, the platform main body is designed as a whole, including cross beams, steel plates and guardrails, facilitating the overall hoisting during installation and disassembly and saving construction time.

[0015] Preferably, the width of the steel plate is 50 cm wider than the thickness of the end web of the beam body.

[0016] With the present utility model, tensioning operations require a certain amount of operating space for operators to install, adjust and operate the jack. The widened steel plate provides a more spacious working environment for the operators, thus improving the convenience and safety of operation. At the same time, the steel plate wider than the thickness of the end web of the beam body can increase the stability of the entire tensioning system. During the tensioning process, the jack and the anchor will generate a large reaction force on the beam body. The widened steel plate helps to disperse these and reduces the pressure on local areas.

[0017] Preferably, the top of the steel plate is provided with patterns.

[0018] With the present utility model, the raised pattern design on the surface of the steel plate can effectively increase the friction coefficient of the steel plate surface, providing good anti-slip effect and ensuring the safety of construction workers.

[0019] Preferably, the tie rod is a precision rolled threaded steel.

[0020] With the present utility model, the precision rolled threaded steel has relatively high strength itself, can be easily connected by nuts, is convenient for construction, improving construction efficiency. In the construction process of prestressed continuous beams, precision rolled threaded steel materials are easily available and can be recycled, improving economy.

[0021] Preferably, the protective railing includes an upper crossbar, a lower crossbar and railing posts, and the upper crossbar and the lower crossbar are arranged in parallel on the railing posts.

[0022] With the present utility model, the upper crossbar, the lower crossbar and the railing posts are provided to form a protective railing, and the double-layer railing provides a good protective effect and reduces the falling risk of construction workers.

[0023] Preferably, a skirting board is provided below the protective railing.

[0024] With the present utility model, by providing a skirting board, sundries such as tools and materials that may fall during construction can be effectively blocked, preventing these sundries from entering the foundation pit and protecting the safety of the construction workers below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the operating platform and the end web of the beam body in Embodiment 1;

[0026] Figure 2 Schematic diagram of the operating platform in Embodiment 1;

[0027] Figure 3 Front view schematic diagram of the operating platform and the end web of the beam body in Embodiment 1;

[0028] Figure 4 Right view schematic diagram of the operating platform and the end web of the beam body in Embodiment 1. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To further understand the content of the present utility model, the present utility model will be described in detail in combination with embodiments. It should be understood that the embodiments are only for explaining the present utility model and not for limiting it.

[0030] Embodiment 1

[0031] As Figures 1-4 shown, this embodiment provides an operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams, which includes two brackets 110, a platform main body 150 is fixed on the two brackets 110, and further includes a tie rod 300 for fixing the brackets 110 on the end web 100 of the beam body. The tie rod 300 passes through the end web 100 of the beam body and the two brackets 110 are respectively fixedly connected to both ends of the tie rod 300.

[0032] With this embodiment, when it is necessary to tension the longitudinal prestressed tendons, the operating platform is directly fixed on the end web 100 of the beam body by using the tie rod 300 to pass through the tie rod hole 400 on the end web 100 of the beam body and the through hole 290 on the operating platform bracket 110, and the construction workers perform the tensioning operation on the operating platform.

[0033] The direct connection between the operating platform and the end web 100 of the beam body greatly reduces the shaking of the platform caused by the temporary load generated during the tensioning operation, improving the tensioning quality and construction safety.

[0034] In this embodiment, the bracket 110 includes a support crossbar 200 and a reinforcing diagonal brace 210. The reinforcing diagonal brace 210 is arranged below the support crossbar 200 and intersects with the support crossbar 200. The reinforcing diagonal brace 210 and the support crossbar 200 are connected by bolts 230.

[0035] Through this embodiment, the bracket 110, as the main body for carrying the operating platform, is provided with a support crossbar 200 and a reinforcing diagonal brace 210 in a triangular shape, increasing the structural stability. Both the support crossbar 200 and the reinforcing diagonal brace 210 are made of channel steel and are connected by high-strength bolts 230. They have high self-strength, can support the operating platform and the possible loads on the operating platform, are convenient for disassembly, can be recycled, reduce the welding and maintenance costs, and have better economy.

[0036] In this embodiment, a plurality of crossbeams 220 are arranged in parallel and connected between the two brackets 110.

[0037] Through this embodiment, the crossbeam 220 is the load-bearing part of the platform. Using a plurality of crossbeams 220 arranged in parallel to connect the two brackets 110 improves its own strength and stability.

[0038] In this embodiment, at least two nuts 310 are respectively arranged at both ends of the tie rod 300 and screwed onto the tie rod 300 itself. The nuts 310 at both ends clamp the bracket 110 and the end web 100 of the beam body.

[0039] Through this embodiment, the combination of the high-strength nuts 310 and the tie rod 300 provides very high connection strength, can withstand large tensile and shear forces, and increases the structural strength; the nuts 310 can be quickly screwed onto the tie rod 300, accelerating the construction progress and improving work efficiency; when disassembly is required, the nuts 310 can be easily removed from the tie rod 300, facilitating maintenance and replacement; using high-strength nuts 310 for connection can reduce welding work and reduce quality and durability problems caused by welding; compared with welded connections, the connection state of the nuts 310 is easier to check and is also convenient for daily maintenance.

[0040] In this embodiment, the platform main body 150 includes a steel plate 140 arranged above the plurality of crossbeams 220, and a guardrail 130 is provided above the steel plate 140.

[0041] Through this embodiment, the platform main body 150 is designed as a whole, including the steel plate 140 and the guardrail 130, facilitating the overall hoisting during installation and disassembly and saving construction time.

[0042] In this embodiment, the width of the steel plate 140 is 50 cm wider than the thickness of the web 100 at the end of the beam body.

[0043] Through this embodiment, the tensioning operation requires a certain operating space for the operator to install, adjust, and operate the jack. The widened steel plate 140 provides a more spacious working environment for the operator, thereby improving the convenience and safety of the operation. At the same time, the steel plate 140 wider than the thickness of the web 100 at the end of the beam body can increase the stability of the entire tensioning system. During the tensioning process, the jack and the anchor will generate a large reaction force on the beam body. The widened steel plate 140 helps to disperse these forces and reduce the pressure on the local area.

[0044] In this embodiment, the steel plate 140 is provided with a pattern 260 on its top.

[0045] Through this embodiment, the design of the raised pattern 260 on the surface of the steel plate 140 can effectively increase the friction coefficient of the surface of the steel plate 140, provide a good anti-slip effect, and ensure the safety of construction workers.

[0046] In this embodiment, the tie rod 300 is a precision rolled thread steel.

[0047] Through this embodiment, the precision rolled thread steel has high strength itself and can be easily connected through the nut 310, which is convenient for construction and improves the construction efficiency. During the construction of the prestressed continuous beam, the precision rolled thread steel material is easily available and can be recycled, improving the economy.

[0048] In this embodiment, the guardrail 130 includes an upper crossbar 250, a lower crossbar 240, and railing posts 280. The upper crossbar 250 and the lower crossbar 240 are arranged in parallel on the railing posts 280.

[0049] Through this embodiment, the upper crossbar 250, the lower crossbar 240, and the railing posts 280 are provided to form the guardrail 130. The double-layer railing provides a good protection effect and reduces the risk of construction workers falling.

[0050] In this embodiment, a kick plate 270 is provided below the guardrail 130.

[0051] Through this embodiment, by setting the kick plate 270 below the guardrail 130, it can effectively block sundries such as tools and materials that may fall during the construction process, prevent these sundries from entering the foundation pit, and protect the safety of the construction workers below.

[0052] It is easy to understand that those skilled in the art can combine, split, and reorganize the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0053] The above has schematically described the present utility model and its implementation manners. This description is not restrictive, and what is shown in the embodiments is only part of the implementation manners of the present utility model. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design structures and embodiments similar to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams, characterized in that: It includes two brackets (110) with a platform main body (150) fixed on the two brackets (110), and also includes a tie rod (300) for fixing the brackets (110) on the end web (100) of the beam body. The tie rod (300) passes through the end web (100) of the beam body and the two brackets (110) are respectively fixedly connected to both ends of the tie rod (300).

2. The operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 1, characterized in that: The bracket (110) includes a support cross bar (200) and a reinforcing diagonal brace (210). The reinforcing diagonal brace (210) is arranged below the support cross bar (200) and intersects with the support cross bar (200). The reinforcing diagonal brace (210) and the support cross bar (200) are connected by bolts (230).

3. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 1, characterized in that: A plurality of cross beams (220) are arranged in parallel between the two brackets (110) and connected.

4. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 1, characterized in that: At least two nuts (310) are provided at both ends of the tie rod (300) and screwed onto the tie rod (300) itself. The nuts (310) at both ends clamp the bracket (110) and the end web (100) of the beam body.

5. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 3, characterized in that: The platform main body (150) includes a steel plate (140) arranged above the plurality of cross beams (220), and a guardrail (130) is provided above the steel plate (140).

6. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 5, characterized in that: The width of the steel plate (140) is 50 cm wider than the thickness of the end web (100) of the beam body.

7. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 6, characterized in that: Patterns (260) are provided on the top of the steel plate (140).

8. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 1, characterized in that: The tie rod (300) is a precision rolled threaded steel.

9. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 5, characterized in that: The guardrail (130) includes an upper cross bar (250), a lower cross bar (240) and railing posts (280). The upper cross bar (250) and the lower cross bar (240) are arranged in parallel on the railing posts (280).

10. An operating platform applicable to the tensioning of longitudinal prestressed tendons of continuous beams according to claim 9, characterized in that: A kick plate (270) is provided below the guardrail (130).

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