A kind of suspender for through steel box tied arch bridge

Abstract

The utility model relates to bridge equipment technical field, concretely is a kind of derrick for through steel box tied arch bridge, including derrick cable body sheath pipe, the inside of derrick cable body sheath pipe is equipped with several derrick cable bodies, the outside of derrick cable body sheath pipe upper and lower end is slidably connected with anchor head pipe, each anchor head pipe outside is fixed with conical screw rod, each conical screw rod outside is equipped with spherical nut, each spherical nut outside is equipped with protective cover, each protective cover inboard is fixed with embedded pipe, each embedded pipe inside is slidably connected with damping body, the outside of lower end embedded pipe is equipped with waterproof cover;The utility model can guarantee the stability of derrick cable body sheath pipe by derrick cable body sheath pipe and cable body inner sheath pipe, to guarantee the stability of derrick cable body, to guarantee tensile effect, embedded pipe is used for positioning damping body, damping body can be damped, to guarantee the stability of derrick cable body sheath pipe.

Description

Technical Field

[0001] This utility model belongs to the field of bridge equipment technology, specifically a hanger for a bottom-bearing steel box girder arch bridge. Background Technology

[0002] In a tied arch bridge with a lower deck, the structure consists of an upper arch rib, a lower main beam, and suspenders connecting the two. The suspenders, acting as an "intermediate link," directly bear the vertical load of the bridge deck. The weight of the bridge deck and external loads are transferred to the arch rib through the suspenders, allowing the arch rib to exert its compressive strength. Simultaneously, the tension in the suspenders generates a counterforce on the beam, helping to balance the horizontal thrust of the arch rib and preventing overall structural instability. Therefore, the performance of the suspenders constantly affects the safety of the arch bridge.

[0003] During construction, after the hanger rods are positioned and installed, they are tensioned and subjected to loads such as the second-phase pavement. Under the influence of hanger rod tension, the second-phase pavement load, and construction errors, the hanger rods may experience slight rotation in the transverse or longitudinal direction of the bridge. During bridge operation, the hanger rods will also experience slight rotation under vehicle loads. However, current hanger rod anchoring systems are either fixed to the arch ribs and main beams or only allow unidirectional rotation. Under slight rotation, the anchoring system will exert lateral stress concentration on the hanger cables, which can easily lead to fatigue fracture of the hanger rods over time. To address this problem, this invention designs a hanger rod anchoring system for a tied-arch bridge with a lower deck. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a hanger for a bottom-bearing steel box girder arch bridge, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hanger for a bottom-bearing steel box girder arch bridge, comprising a hanger cable sheath tube, wherein a plurality of hanger cables are provided inside the hanger cable sheath tube, and anchor head tubes are slidably connected to the upper and lower ends of the hanger cable sheath tube. A tapered screw is fixed to the outside of each anchor head tube, a spherical nut is provided to the outside of each tapered screw, a plurality of sliders are fixed to the outside of each spherical nut, a protective cover is provided to the outside of each spherical nut, a pre-embedded tube is fixed to the inside of each protective cover, a vibration damper is slidably connected to the inside of each pre-embedded tube, and a positioning plate is tightly fitted to the inside of each vibration damper. The upper pre-embedded tube is fixed inside the arch ring, and the lower pre-embedded tube is fixed inside the beam body. A waterproof cover is provided to the outside of the lower pre-embedded tube, and positioning grooves are fixed to the upper and lower ends of the waterproof cover. Two locking rings are slidably connected inside each positioning groove.

[0006] Preferably, each of the boom cables is fixed to the outside of an inner sheath tube, with the outermost inner sheath tube closely fitted to the boom cable sheath tube, and a support plate fixed to the outside of the lower embedded tube.

[0007] Preferably, the support plate is tightly fitted with the lower positioning groove, positioning blocks are fixed at both the front and rear ends of the waterproof cover, the front and rear locking rings are fastened together by locking bolts, and a waterproof strip is fixed to the top of the waterproof cover.

[0008] Preferably, each anchor pipe is provided with a plurality of vibration damping grooves, each vibration damping groove is provided with a vibration damping protrusion on its inner side, the slider inside each set of vibration damping grooves is fixedly connected to the positioning plate at one end, and each positioning plate is fastened to the pre-embedded pipe at one end by vibration damping bolts.

[0009] Preferably, each protective cover has a protective plate fastened to its outer side by protective plate bolts, a spherical pad is fixed inside each protective cover, each spherical pad is tightly fitted with a spherical nut at one end, each protective cover has a plurality of slide rails inside, each slide rail is slidably connected to a slider inside, each spherical nut has a tapered external thread fixed inside, each tapered external thread is engaged with a tapered internal thread, each tapered internal thread is fixedly connected to a tapered screw inside, and the tapered screw has a plurality of deformation cavities.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention ensures the stability of the boom cable sheath and the inner sheath of the cable body through the boom cable sheath, thereby ensuring the stability of the boom cable and the tensile effect. The pre-embedded pipe is used to position the vibration damper, which can reduce vibration, thus ensuring the stability of the boom cable sheath and the entire boom. The positioning plate is used to position the vibration damper, thereby ensuring the stability of the vibration damper and the vibration damping effect. The vibration damping bolt can lock the positioning plate, thereby ensuring the stability of the positioning plate.

[0011] This invention uses a slider to position the spherical nut. Rotating the anchor tube drives the conical screw to rotate, and the engagement of the conical external and internal threads moves the anchor tube outward, clamping the boom cable sheath and ensuring the stability of the boom cable. Simultaneously, the slide rail and slider allow the spherical nut to slide inside the protective cover, facilitating the fixing of the boom cable sheath while providing a certain margin to prevent sudden stress and breakage of the sheath, thus ensuring the safety of the entire boom and extending its service life. Furthermore, the anchor tube facilitates replacement of the boom cable, extending the boom's overall lifespan, and the spherical nut prevents stress concentration in the boom.

[0012] The opening at the top of the waterproof cover of this utility model is smaller than the opening at the bottom, which facilitates rainwater to flow in and reduces the flow rate of rainwater, thereby ensuring the waterproof effect. The locking ring can be locked by the locking bolt, thereby positioning the positioning groove and thus positioning the waterproof cover, thereby ensuring the safety of the waterproof cover. At the same time, the waterproof strip can prevent rainwater from entering the inside of the anchor head tube, thereby ensuring the safety of the internal parts of the anchor head tube and thus improving the service life of the entire device. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the entire utility model placed horizontally; Figure 3 This is a schematic diagram of the waterproof cover of this utility model; Figure 4 This is a schematic diagram of the waterproof strip of this utility model; Figure 5 This is a cross-sectional schematic diagram of the cable sheath tube of this utility model; Figure 6 This is a schematic diagram of the outer end of the anchor head tube of this utility model; Figure 7 This is a schematic diagram of the vibration damping groove of this utility model; Figure 8 This is a cross-sectional view of the protective cover of this utility model; Figure 9 This is a schematic diagram of the interior of the protective cover of this utility model; Figure 10 This is a schematic diagram of the deformation cavity of this utility model.

[0015] In the diagram: 1-Hanging rod cable sheath; 2-Protective cover; 3-Arch; 4-Embedded pipe; 5-Waterproof cover; 6-Slide rail; 101-Hanging rod cable; 102-Inner sheath of the cable; 201-Cover plate; 202-Cover plate bolt; 203-Spherical pad; 301-Anchor plate; 302-Beam; 401-Anchor head pipe; 402-Positioning plate; 403-Vibration damping bolt; 404-Vibration damping body; 405-Vibration damping groove; 406-Vibration damping protrusion; 501-Waterproof strip; 502-Positioning groove; 503-Locking ring; 504-Connecting strip; 505-Supporting plate; 506-Positioning block; 507-Locking bolt; 601-Slider; 602-Spherical nut; 603-Conical screw; 604-Conical external thread; 605-Conical internal thread; 606-Deformation cavity. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1, by Figure 1 , Figure 3 , Figure 6 , Figure 8The present invention includes a suspender cable sheath 1, which is made of PE material and is used to position the inner sheath 102 of the cable. The suspender cable sheath 1 contains several suspender cables 101, each composed of multiple strands of steel wire. Anchor head tubes 401, made of alloy material, are slidably connected to the upper and lower ends of the suspender cable sheath 1. The anchor head tubes 401 are used to position the suspender cable sheath 1. A tapered screw 603, also made of alloy material, is fixed to the outside of each anchor head tube 401 and is used to position the tapered internal thread 605. Each of the conical screws 603 is externally provided with a spherical nut 602. The spherical nut 602 is made of an alloy material and has a spherical structure. The spherical nut 602 is used to position the conical external thread 604. Several sliders 601, made of alloy material, are fixed externally to each spherical nut 602. The sliders 601 are used to position the spherical nut 602. Each spherical nut 602 is externally provided with a protective cover 2, made of alloy material. The protective cover 2 is used to position the protective cover plate 201. An embedded pipe 4, made of alloy material, is fixed inside each protective cover 2. The embedded pipe 4 is used for positioning. The vibration damper 404 is slidably connected inside each of the pre-embedded pipes 4. The vibration damper 404 is made of rubber material and can dampen vibrations, thereby ensuring the stability of the suspension cable sheath 1 and the entire suspension rod. A positioning plate 402, made of alloy material, is tightly fitted to the inner side of each vibration damper 404 to ensure its stability and vibration damping effect. The upper pre-embedded pipe 4 is fixed inside the arch ring 3, which is made of concrete and is used to fix the upper pre-embedded pipe 4. The lower pre-embedded pipe 4 is fixed to the beam 302. Internally, the beam 302 is made of cast concrete and is used to fix the lower embedded pipe 4. The lower embedded pipe 4 is provided with a waterproof cover 5, which is made of rubber. The upper opening of the waterproof cover 5 is smaller than the lower opening, so as to facilitate rainwater to leave and reduce the rainwater flow rate, thereby ensuring the waterproof effect. The upper and lower ends of the waterproof cover 5 are fixed with positioning grooves 502, which are made of rubber and are used to position the locking rings 503. Two locking rings 503 are slidably connected inside each positioning groove 502. The locking rings 503 are made of alloy material and are used to position the waterproof cover 5.

[0018] Example 2, based on Example 1, combined with... Figure 2 , Figures 4-5 , Figure 7 , Figures 9-10Each of the aforementioned boom cable bodies 101 is externally fixed with an inner sheath 102, which is made of PE material. The inner sheath 102 is used to position the boom cable body 101. The outermost inner sheath 102 is tightly fitted to the boom cable body sheath 1. A support plate 505, made of alloy material, is fixed externally to the lower embedded pipe 4. The support plate 505 is used to support the lower positioning groove 502, and is tightly fitted to the lower positioning groove 502. Positioning blocks 506, made of rubber material, are fixed to both the front and rear ends of the waterproof cover 5. The positioning blocks 506 are used to position the... The locking bolt 507 is used to fasten the front and rear locking rings 503 together. A waterproof strip 501 is fixed to the top of the waterproof cover 5. The waterproof strip 501 has a sloping structure and is made of rubber. The waterproof strip 501 prevents rainwater from entering the anchor pipe 401. Each anchor pipe 401 has several vibration damping grooves 405, and each vibration damping groove 405 has a vibration damping protrusion 406 on its inner side. The vibration damping protrusion 406 facilitates the insertion of the vibration damping body 404 into the embedded pipe 4. The vibration damping grooves 405 are used to position the positioning plate 402. The slider inside each set of vibration damping grooves 405 is fixedly connected to the positioning plate 402 at one end. Each positioning plate 402 is fastened to one end of the pre-embedded pipe 4 by a vibration damping bolt 403. The vibration damping bolt 403 can lock the positioning plate 402, thereby ensuring the stability of the positioning plate 402. A protective plate 201 is fastened to the outside of each protective cover 2 by a protective plate bolt 202. The protective plate 201 ensures the sealing of the protective cover 2. A spherical pad 203 is fixed inside each protective cover 2. The spherical pad 203 has a spherical groove structure and is used to position the spherical nut 602. Each spherical pad 203 is tightly fitted to the spherical nut 602 at one end. Several slide rails 6 are provided inside each protective cover 2. The slide rail 6 is used to position the slider 601. Each slide rail 6 is slidably connected to the slider 601 inside it. Each ball nut 602 has a tapered external thread 604 fixed inside it. Each tapered external thread 604 is engaged with a tapered internal thread 605 inside it. The tapered external thread 604 and the tapered internal thread 605 cooperate to drive the anchor tube 401 to move outward, thereby clamping the suspender cable sheath tube 1, thus ensuring the stability of the suspender cable 101. Each tapered internal thread 605 is fixedly connected to the tapered screw 603 inside it. The tapered screw 603 is provided with a plurality of deformation cavities 606, which facilitate the deformation of the tapered screw 603. When using this boom, the operator secures each of the protective covers 201 to one end of the protective cover 2 using the protective cover bolts 202. Furthermore, the operator pours the upper protective cover 2 into the inside of the arch ring 3, and simultaneously pours the lower protective cover 2 into the inside of the beam body 302. At this time, the anchor plate 301 prevents the protective cover 2 from falling off. The operator then fixes an inner sheath 102 to the outside of the boom cable body 101, and further, a boom cable protection sleeve is fitted onto the outside of the boom cable body 101. Sleeve 1: At this point, the worker inserts the suspender cable sheath 1 into the upper anchor head tube 401. The worker then rotates the upper anchor head tube 401, causing the upper tapered screw 603 to rotate. Due to the action of the upper tapered external thread 604 and the upper tapered internal thread 605, the upper tapered screw 603 moves upward. The upper deformation cavity 606 deforms the upper tapered screw 603, clamping the upper end of the suspender cable sheath 1, thus ensuring the suspender cable... To further stabilize the upper end of the sheath tube 1, the worker inserts the vibration damper 404 into the pre-embedded pipe 4 at the upper end, and further fixes the vibration damper 404 through the positioning plate 402 and the vibration damping bolt 403. Then, the worker inserts the waterproof cover 5 into the outer side of the lower end of the sheath tube 1. At this time, the worker inserts the lower end of the sheath tube 1 into the lower anchor head pipe 401. Then, the worker rotates the lower anchor head pipe 401, thereby causing the lower tapered screw 603 to rotate, thus... The lower end of the tapered screw 603 clamps the lower end of the boom cable sheath 1. At this time, the worker inserts the lower end of the vibration damper 404 into the lower end of the pre-embedded pipe 4, and fixes the vibration damper 404 by the positioning plate 402 and the vibration damping bolt 403. At this time, the worker uses the locking bolt 507 to make the locking ring 503 clamp the two positioning grooves 502, so that the upper end of the waterproof strip 501 is in close contact with the boom cable sheath 1, thereby ensuring waterproof performance and thus ensuring the service life of the entire boom.

[0019] The working process of this utility model is as follows: When using this suspender, the operator fastens each of the protective cover plates 201 to the protective cover 2 at one end using the protective cover plate bolts 202. Further, the operator pours the upper protective cover 2 into the interior of the arch ring 3, and simultaneously pours the lower protective cover 2 into the interior of the beam body 302. At this time, the anchor plate 301 prevents the protective cover 2 from falling off. The operator then fixes an inner sheath tube 102 to the outside of the suspender cable body 101. Further, the operator... The boom cable sheath 1 is then installed. The operator inserts the boom cable sheath 1 into the upper anchor head tube 401. The operator then rotates the upper anchor head tube 401, causing the upper tapered screw 603 to rotate. Due to the action of the upper tapered external thread 604 and the upper tapered internal thread 605, the upper tapered screw 603 moves upward. The upper deformation cavity 606 deforms the upper tapered screw 603, clamping the upper end of the boom cable sheath 1, thus ensuring... To ensure the stability of the upper end of the boom cable sheath 1, the operator further inserts the vibration damper 404 into the pre-embedded pipe 4 at the upper end, and further fixes the vibration damper 404 using the positioning plate 402 and the vibration damping bolt 403. Next, the operator inserts the waterproof cover 5 into the outer part of the lower end of the boom cable sheath 1. Then, the operator inserts the lower end of the boom cable sheath 1 into the lower anchor head pipe 401. At this point, the operator rotates the lower anchor head pipe 401, thereby causing the lower tapered screw 603 to rotate. This causes the tapered screw 603 at the lower end to clamp the lower end of the boom cable sheath 1. At this time, the worker inserts the vibration damper 404 at the lower end into the pre-embedded pipe 4 at the lower end, and fixes the vibration damper 404 by the positioning plate 402 and the vibration damping bolt 403. At this time, the worker uses the locking bolt 507 to make the locking ring 503 clamp the two positioning grooves 502, so that the upper end of the waterproof strip 501 is in close contact with the boom cable sheath 1, thereby ensuring waterproof performance and ensuring the service life of the entire boom.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspender for a through steel box tied arch bridge, characterized in that: The system includes a boom cable sheath (1), inside which are provided several boom cables (101). Anchor head tubes (401) are slidably connected to the upper and lower ends of the boom cable sheath (1). A tapered screw (603) is fixed to the outside of each anchor head tube (401). A spherical nut (602) is provided on the outside of each tapered screw (603). Several sliders (601) are fixed to the outside of each spherical nut (602). A protective cover (2) is provided on the outside of each spherical nut (602). (2) An embedded pipe (4) is fixed on the inner side. A damping body (404) is slidably connected inside each embedded pipe (4). A positioning plate (402) is tightly attached to the inner side of each damping body (404). The upper embedded pipe (4) is fixed inside the arch ring (3). The lower embedded pipe (4) is fixed inside the beam body (302). A waterproof cover (5) is provided outside the lower embedded pipe (4). A positioning groove (502) is fixed at both the upper and lower ends of the waterproof cover (5). Two locking rings (503) are slidably connected inside each positioning groove (502).

2. The hanger for a through-type steel box tied-arch bridge according to claim 1, wherein: Each of the aforementioned sling bodies (101) is externally fixed with an inner sheath tube (102), the outermost inner sheath tube (102) is tightly fitted with the sling body sheath tube (1), and the lower end of the pre-embedded tube (4) is externally fixed with a support plate (505).

3. The hanger for a through-type steel box tied-arch bridge according to claim 2, characterized in that: The support plate (505) fits tightly with the positioning groove (502) at the lower end. The waterproof cover (5) is fixed with positioning blocks (506) at both the front and rear ends. The two locking rings (503) at the front and rear are fastened together by locking bolts (507). The waterproof strip (501) is fixed on the top of the waterproof cover (5).

4. The hanger of a through steel box tied-arch bridge according to claim 3, characterized in that: Each anchor pipe (401) is provided with a plurality of vibration damping grooves (405), and each vibration damping groove (405) is provided with a vibration damping protrusion (406) on the inner side. The slider inside each set of vibration damping grooves (405) is fixedly connected to the positioning plate (402) at one end. Each positioning plate (402) is fastened to the pre-embedded pipe (4) at one end by vibration damping bolts (403).

5. The hanger for a through-type steel box tied-arch bridge according to claim 4, wherein: Each of the protective covers (2) is fastened to the outside of a protective cover plate (201) by a protective cover plate bolt (202). Each of the protective covers (2) is fixed inside a spherical pad (203). Each spherical pad (203) is tightly fitted to a spherical nut (602) at one end. Each of the protective covers (2) is provided with several slide rails (6). Each slide rail (6) is slidably connected to a slider (601) inside. Each spherical nut (602) is fixed with a tapered external thread (604). Each tapered external thread (604) is meshed with a tapered internal thread (605). Each tapered internal thread (605) is fixedly connected to a tapered screw (603) inside. The tapered screw (603) is provided with several deformation cavities (606).

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