Suspension type tensioning protection frame

Abstract

The utility model discloses a kind of suspension type tensioning protective frame, it is related to bridge prestressed construction technical field.Suspension in the end of beam body, it includes: protective frame body, including support frame and support beam, support beam is set in the top of support frame, support beam is set along the width direction of beam body, and slippage device for hoisting jack is set on support beam, and slippage device is slidably connected with support beam;Connecting frame body, one end of connecting frame body is connected with the side of support frame close to beam body, and the other end of connecting frame body is connected with embedded steel groove on beam body to realize the connection of protective frame body and the beam body.The utility model discloses the suspension type tensioning protective frame provided, solve the prestressed tensioning protection work of beam body, and construction cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of bridge prestressed construction technology, and more specifically to a suspended tensioning protective frame. Background Technology

[0002] Currently, with the rapid development of the national economy, various types of cap beams and crossbeams have emerged in large numbers. Large-span cap beams or crossbeams have become very common structures due to their advantages such as fewer support points, increased utilization of space under bridges, improved traffic conditions under bridges, and reduced environmental impact. However, large-span cap beams or crossbeams are generally prestressed. Prestressing is crucial for large-span cap beams or crossbeams. Traditional methods of prestressing using tensioning platforms or crane lifting platforms are subject to many limitations and are uneconomical. Utility Model Content

[0003] In view of this, the present invention provides a suspended tensioning protection frame, which solves the problem of prestressed tensioning protection for beams and saves construction costs. To achieve the above objectives, the present invention adopts the following technical solution:

[0004] A suspended tensioning protective frame, suspended at the end of a beam, includes:

[0005] The protective frame includes a support frame and a support beam. The support beam is located at the top of the support frame and is arranged along the width direction of the beam. A sliding device for hoisting jacks is provided on the support beam, and the sliding device is slidably connected to the support beam.

[0006] A connecting frame is provided, with one end connected to the support frame near the beam, and the other end connected to a pre-embedded steel channel on the beam to achieve the connection between the protective frame and the beam.

[0007] Furthermore, the sliding device includes a sliding component and a lifting component, the sliding component being slidably connected to the support beam, and the lifting component being connected to the end of the sliding device away from the support beam.

[0008] Furthermore, the lifting component is a traction guide chain, the sliding component is a caster, the caster is slidably connected to the track on the support beam, and the traction guide chain is connected to the caster.

[0009] Furthermore, the support frame includes two vertical supports and a bottom plate longitudinal beam. The two vertical supports are spaced apart along the length direction of the beam. Multiple guardrails are connected between the two vertical supports along the height direction. The connecting frame is connected to one of the vertical supports near the beam. Multiple bottom plate longitudinal beams are arranged between the two vertical supports along the width direction of the bridge body. The bottom plate longitudinal beams are connected to the bottom end of the vertical supports.

[0010] Furthermore, the vertical support includes two vertical members and a fixed rod. The two vertical members are spaced apart along the width direction of the beam. The fixed rod is connected between the two vertical members and is located at the bottom end of the vertical members. The two ends of the bottom plate longitudinal beam are respectively connected to one of the fixed rods. The two ends of the guardrail are connected to the two vertical members on the same side of the two vertical supports.

[0011] Furthermore, it also includes a ribbed steel plate, which is disposed between and connected to the four vertical members, and a diagonal brace is connected between the two vertical members on the same side of the two vertical supports.

[0012] Furthermore, the connecting frame includes multiple transverse members, which are connected to the vertical members near the beam and extend in a direction close to the beam.

[0013] Furthermore, connecting rods are provided between the two vertical members of one vertical support and between the transverse members at both ends.

[0014] Furthermore, a ladder is provided on the protective frame, and a baffle and multiple baffle ribs are provided at the end of the protective frame away from the beam. The multiple baffle ribs are spaced apart along the height direction of the protective frame, and the baffle is connected to the baffle ribs.

[0015] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a suspended tensioning protective frame. The sliding device slides on the support beam, which allows the jack to be applied to tensioning work at different positions on the beam. The tensioning protection work is carried out through the protective frame, ensuring construction safety, saving construction costs, and improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A front view of the suspended tensioning protective frame provided by this utility model;

[0018] Figure 2 This is a side view of the suspended tensioning protective frame provided by this utility model.

[0019] In the diagram: 1. Lifting lug; 2. Support beam; 3. Lifting component; 4. Connecting rod; 5. Diagonal brace; 6. Baffle rib; 7. Baffle; 8. Ribbed steel plate; 9. Sliding component; 10. Vertical rod; 11. Base plate longitudinal beam; 12. Horizontal rod; 13. Ladder; 14. Fixing rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1-2 This utility model discloses a suspended tensioning protective frame, suspended at the end of a beam, comprising:

[0022] The protective frame includes a support frame and a support beam 2. The support beam 2 is located at the top of the support frame and is arranged along the width of the beam. The support beam 2 is equipped with a sliding device for hoisting jacks, and the sliding device is slidably connected to the support beam 2.

[0023] The connecting frame is connected at one end to the side of the support frame closest to the beam, and at the other end to the pre-embedded steel channel on the beam to achieve the connection between the protective frame and the beam.

[0024] In some embodiments, the protective frame is provided with lifting lugs 1.

[0025] During construction, channel steel is pre-embedded within the beam body, and the connecting frame is attached to the pre-embedded channel steel. When prestressing tensioning of the beam is required, a crane uses lifting lug 1 to lift the protective frame to the end of the beam, connects the protective frame to the beam, and uses a sliding device to move the jacks to the predetermined positions. The jacks are then installed and used to complete the tensioning work. After tensioning is completed, the jacks are removed, and the sliding device is used to move the jacks again to the predetermined positions for the next tensioning operation. This process is repeated until all tensioning work on the beam is completed. The crane then lifts the protective frame to the next beam, and the cycle continues. The protective frame protects the construction process and ensures construction safety.

[0026] In some embodiments, the lifting lug 1 is machined from a 2cm thick steel plate.

[0027] In some embodiments, the support beam 22 is made of 12# I-beam.

[0028] In some embodiments, the sliding device includes a sliding member 9 and a lifting member 3, the sliding member 9 being slidably connected to the support beam 2, and the lifting member 3 being connected to the end of the sliding device away from the support beam 2.

[0029] In some embodiments, the lifting component 3 is a traction guide chain, the sliding component 9 is a caster, the caster is slidably connected to the track on the support beam 2, and the traction guide chain is connected to the caster.

[0030] The sliding of the casters within the track causes the casters to move the guide chain, which in turn moves the jack.

[0031] In some embodiments, the support frame includes two vertical supports and a bottom plate longitudinal beam 11. The two vertical supports are spaced apart along the length direction of the beam. Multiple guardrails are connected between the two vertical supports along the height direction. The connecting frame is connected to one of the vertical supports near the beam. Multiple bottom plate longitudinal beams 11 are arranged between the two vertical supports along the width direction of the bridge body. The bottom plate longitudinal beams 11 are connected to the bottom end of the vertical supports.

[0032] The guardrail and the longitudinal beam 11 of the base plate are connected between the two vertical supports to ensure the stability of the connection between the two vertical supports, thereby ensuring the stability of the support frame.

[0033] In some embodiments, the vertical support includes two vertical members 10 and a fixed rod 14. The two vertical members 10 are spaced apart along the width direction of the beam. The fixed rod 14 is connected between the two vertical members 10 and is located at the bottom end of the vertical members 10. The two ends of the bottom plate longitudinal beam 11 are respectively connected to a fixed rod 14. The two ends of the guardrail are connected to the two vertical members 10 on the same side of the two vertical supports.

[0034] By connecting the fixing rod 14 between the two vertical rods 10, the stability of the connection between the two vertical rods 10 is ensured, thereby ensuring the stability of the vertical support and the support frame.

[0035] In some embodiments, the system further includes a ribbed steel plate 8, which is disposed between and connected to the four vertical members 10, and a diagonal brace 5 is connected between the two vertical members 10 on the same side of the two vertical supports.

[0036] The stability of the support frame is ensured by the installation of ribbed steel plates 8 and diagonal braces 5.

[0037] In some embodiments, the connecting frame includes a plurality of transverse members 12, which are connected to vertical members near the beam and extend toward the beam.

[0038] During the installation of the protective frame, multiple horizontal members 12 are inserted into the side of the pre-embedded steel channel to connect the protective frame with the beam, enabling the rapid dismantling and installation of the protective frame and improving work efficiency.

[0039] In some embodiments, connecting rods 4 are connected between the two vertical rods 10 of a vertical support and between the horizontal rods 12 at both ends.

[0040] In some embodiments, a ladder 13 is provided on the protective frame, and a baffle 7 and a plurality of baffle ribs 6 are provided at the end of the protective frame away from the beam. The plurality of baffle ribs 6 are spaced apart along the height direction of the protective frame, and the baffle 7 is connected to the baffle ribs 6.

[0041] The baffle 7 is installed to prevent tools and materials from falling and injuring people during construction.

[0042] In some embodiments, the connecting rod 4, the horizontal rod 12, the vertical rod 10 and the diagonal brace 5 are all made of 20# channel steel, the bottom plate longitudinal beam 11 and the baffle rib 6 are made of 10# channel steel, the guardrail and the ladder 13 are made of Φ16 round steel, and the step spacing of the ladder 13 is no more than 30cm.

[0043] In some embodiments, the baffle rib 6 is welded to the vertical rod 10, and the baffle 7 is made of bamboo plywood with a thickness of 12mm, which is fixed to the baffle rib 6 by drilling holes and binding with iron wire.

[0044] In some embodiments, the traction guide chain is a 3t or 5t guide chain.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A suspended tensioning protective frame, suspended at the end of a beam, characterized in that, include: The protective frame includes a support frame and a support beam. The support beam is located at the top of the support frame and is arranged along the width direction of the beam. A sliding device for hoisting jacks is provided on the support beam, and the sliding device is slidably connected to the support beam. A connecting frame is provided, with one end connected to the support frame near the beam, and the other end connected to a pre-embedded steel channel on the beam to achieve the connection between the protective frame and the beam.

2. The suspended tensioning protective frame according to claim 1, characterized in that, The sliding device includes a sliding component and a lifting component. The sliding component is slidably connected to the support beam, and the lifting component is connected to the end of the sliding device away from the support beam.

3. The suspended tensioning protective frame according to claim 2, characterized in that, The lifting component is a traction guide chain, the sliding component is a caster, the caster is slidably connected to the track on the support beam, and the traction guide chain is connected to the caster.

4. The suspended tensioning protective frame according to claim 1, characterized in that, The support frame includes two vertical supports and a bottom plate longitudinal beam. The two vertical supports are spaced apart along the length of the beam. Multiple guardrails are connected between the two vertical supports along the height direction. The connecting frame is connected to one of the vertical supports near the beam. Multiple bottom plate longitudinal beams are arranged between the two vertical supports along the width direction of the bridge body. The bottom plate longitudinal beams are connected to the bottom end of the vertical supports.

5. The suspended tensioning protective frame according to claim 4, characterized in that, The vertical support includes two vertical members and a fixed rod. The two vertical members are spaced apart along the width direction of the beam. The fixed rod is connected between the two vertical members and is located at the bottom end of the vertical members. The two ends of the bottom plate longitudinal beam are respectively connected to one of the fixed rods. The two ends of the guardrail are connected to the two vertical members on the same side of the two vertical supports.

6. The suspended tensioning protective frame according to claim 5, characterized in that, It also includes a ribbed steel plate, which is disposed between and connected to the four vertical members, and a diagonal brace is connected between the two vertical members on the same side of the two vertical supports.

7. The suspended tensioning protective frame according to claim 5, characterized in that, The connecting frame includes multiple horizontal members, which are connected to the vertical members near the beam and extend towards the beam.

8. The suspended tensioning protective frame according to claim 7, characterized in that, Connecting rods are provided between the two vertical members of one vertical support and between the horizontal members at both ends.

9. The suspended tensioning protective frame according to claim 1, characterized in that, The protective frame is equipped with a ladder, and a baffle and multiple baffle ribs are provided at the end of the protective frame away from the beam. The multiple baffle ribs are spaced apart along the height direction of the protective frame, and the baffle is connected to the baffle ribs.

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