A steel tie rod tensioning construction device

Abstract

This utility model relates to the field of bridge construction, specifically disclosing a steel tie rod tensioning construction device, comprising: a tensioning mechanism arranged on a steel beam segment to tension a pre-embedded steel tie rod; a working rope wound around the outer circumference of a nut on the steel tie rod, and rotating the nut under the drive of an external force; and a force-applying component including a support frame and a force-applying member connected to the support frame, the force-applying member being connected to the working rope to pull the working rope. The beneficial effects of the above technical solution are: the working rope and force-applying component allow for more effortless rotation of the nut, enabling the nut to counteract the displacement generated during tensioning, thereby ensuring a tight connection between the steel tie rod and the steel beam segment. Furthermore, the tensioning mechanism includes a reaction frame and a jack. The reaction frame is fixed on the steel beam segment and covers the outer periphery of the steel tie rod to be tensioned. The jack is fixed to the top of the reaction frame and connected to the steel tie rod for tensioning.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a steel tie rod tensioning construction device. Background Technology

[0002] In the construction of bridges, large buildings, and other engineering projects, steel tie rods are key load-bearing components, and the quality of their tensioning construction plays a decisive role in the overall stability and safety of the project. Currently, after tensioning the steel tie rods, the nuts need to be tightened to ensure a reliable connection between the tie rods and the steel beam segments. Due to the large size of the nuts and the large tightening force required, existing tightening equipment cannot be conveniently applied in the arch abutment area, and the operating space for construction workers is too confined, making the nut tightening operation very inconvenient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a steel tie rod tensioning construction device, which makes the rotation of the nut more convenient and labor-saving.

[0004] The present invention provides a technical solution: a steel tie rod tensioning construction device, comprising:

[0005] The tensioning mechanism is arranged in the steel beam segments to tension the pre-embedded steel tie rods;

[0006] The working rope is wound around the outer circumference of the nut on the steel tie rod and rotates the nut under the drive of external force;

[0007] The force-applying component includes a support frame and a force-applying element connected to the support frame, the force-applying element being connected to the working rope to pull the working rope.

[0008] The beneficial effects of the above technical solution are as follows: the working rope and force application components can rotate the nut more effortlessly, so that the nut can offset the displacement generated during the tensioning process, thereby making the steel tie rod and the steel beam segment tightly connected.

[0009] Furthermore, the tensioning mechanism includes a reaction frame and jacks. The reaction frame is fixed on the steel beam segment and covers the outside of the steel tie rod to be tensioned. The jacks are fixed on the top of the reaction frame and are connected to the steel tie rod to perform tensioning.

[0010] Furthermore, the force-adding component includes a hoist, the lifting end of which is connected to the working rope.

[0011] Furthermore, the support frame includes a mast, which is fixed to the upper part of the arch, and guy ropes are also installed between the mast and the arch.

[0012] Furthermore, the reaction frame includes a base plate, uprights, and a top plate. The uprights stand around the base plate, the top plate is fixed to the top of the uprights, and the jacks are fixed to the top plate.

[0013] Furthermore, the reaction frame is also equipped with lifting lugs.

[0014] Furthermore, four positioning clips are installed on the top plate, which are distributed at the four corners of the top plate and define an installation space for the fixed jack. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the tensioning mechanism in an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0019] Reference numerals: arch seat 100, steel tie rod 110, nut 111, steel beam segment 200, tensioning mechanism 300, pad 310, upright 320, top plate 330, positioning clip 331, lifting lug 332, jack 340, mast 400, guy rope 410, hoist 420. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0022] like Figure 1-3As shown, this embodiment provides a steel tie rod tensioning construction device, including a tensioning mechanism 300, a working rope, and a force-applying component. The tensioning mechanism 300 is arranged on the steel beam segment 200 to tension the pre-embedded steel tie rod 110. The working rope is wound around the outer periphery of the nut 111 of the steel tie rod 110 and rotates the nut 111 under the drive of an external force. The force-applying component includes a support frame and a force-applying member connected to the support frame. The force-applying member is connected to the working rope to pull the working rope. The lower end of the steel tie rod 110 is pre-embedded and fixed in the arch seat 100 to provide the foundation anchoring force, so that the steel beam segment 200 can be more firmly connected to the arch seat 100, thereby laying the foundation for the strength of the bridge. The working rope is a steel cable, and a connecting pin is provided on the outer periphery of the nut 111. The connecting pin extends radially outward on the outer side of the nut 111, and the working rope is tied to the connecting pin. When the working rope is pulled along the outer periphery, it can drive the nut 111 to rotate. The force-adding component can save more effort and also provide more working space for construction workers.

[0023] The working rope and force application components allow for easier rotation of the nut 111, enabling the nut 111 to counteract the displacement generated during tensioning, thereby ensuring a tight connection between the steel tie rod 110 and the steel beam segment 200.

[0024] In some embodiments, the tensioning mechanism 300 includes a reaction frame and a jack 340. The reaction frame is fixed to the steel beam segment 200 and covers the steel tie rod 110 to be tensioned. The jack 340 is fixed to the top of the reaction frame and is connected to the steel tie rod 110 for tensioning. The reaction frame is used to fix the jack 340, enabling the jack 340 to apply force normally and ensuring that the jack 340 can lift the steel tie rod 110. The reaction frame provides stable reaction support for the jack 340, ensuring that the jack 340 is subjected to uniform force during tensioning, thereby accurately controlling the tension force of the steel tie rod 110, effectively avoiding stress defects in the steel tie rod 110 caused by uneven tension force, and ensuring construction quality.

[0025] In some embodiments, the force-applying component includes a hoist 420, the lifting end of which is connected to a working rope. The hoist 420 can be an electric hoist or a lever hoist. The hoist 420 is a labor-saving device, allowing the operator to turn the nut 111 with less effort. The hoist 420, the support frame, and the working rope are all detachably connected, facilitating installation before use and disassembly after use.

[0026] In some embodiments, the support frame includes a mast 400, which is fixed to the upper part of the arch 100. A guy rope 410 is also provided between the mast 400 and the arch 100. The mast 400 provides support for the hoist 420, allowing the tension of the hoist 420 to act on the working rope, thereby driving the nut 111 to rotate and lock the nut 111 onto the steel tie rod 110. The guy rope 410 increases the stability of the mast 400. The hoist 420 can be arranged in any area between the mast 400 and the steel tie rod 110, giving construction workers more flexible working space.

[0027] In some embodiments, the reaction frame includes a pad 310, a pole 320, and a top plate 330. The pole 320 is erected around the pad 310, the top plate 330 is fixed to the top of the pole 320, and the jack 340 is fixed to the top plate 330.

[0028] In some embodiments, the reaction frame is also provided with lifting lugs 332 for easy transport.

[0029] In some embodiments, four positioning clips 331 are provided on the top plate 330. The four positioning clips 331 are distributed at the four corners of the top plate 330 and define an installation space for fixing the jack 340. The positioning clips 331 can facilitate the installation of the jack 340 and also block the jack 340 to prevent it from shifting.

[0030] In the description of this application, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0031] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A steel tie rod tensioning construction device, characterized in that, include: Tensioning mechanism (300) is arranged on steel beam segment (200) to tension the pre-embedded steel tie rod (110); The working rope is wrapped around the outer circumference of the nut (111) of the steel tie rod (110) and rotates the nut (111) under the drive of external force; The force-applying component includes a support frame and a force-applying member connected to the support frame, the force-applying member being connected to the working rope to pull the working rope.

2. The steel tie rod tensioning construction device according to claim 1, characterized in that, The tensioning mechanism (300) includes a reaction frame and a jack (340). The reaction frame is fixed on the steel beam segment (200) and covers the steel tie rod (110) to be tensioned. The jack (340) is fixed on the top of the reaction frame and is connected to the steel tie rod (110) for tensioning.

3. The steel tie rod tensioning construction device according to claim 1, characterized in that, The force-adding component includes a hoist (420), the lifting end of which is connected to the working rope.

4. The steel tie rod tensioning construction device according to claim 1, characterized in that, The support frame includes a mast (400) fixed to the upper part of the arch (100), and a guy rope (410) is also provided between the mast (400) and the arch (100).

5. A steel tie rod tensioning construction device according to claim 2, characterized in that, The reaction frame includes a pad (310), a pole (320) and a top plate (330). The pole (320) is erected around the pad (310), the top plate (330) is fixed to the top of the pole (320), and the jack (340) is fixed to the top plate (330).

6. A steel tie rod tensioning construction device according to claim 1 or 5, characterized in that, The reaction frame is also equipped with a lifting lug (332).

7. A steel tie rod tensioning construction device according to claim 5, characterized in that, The top plate (330) is provided with four positioning clips (331), which are distributed at the four corners of the top plate (330) and define an installation space for fixing the jack (340).

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