Special-shaped pedestrian cable-stayed bridge steel structure tower inhaul cable anchoring device

Abstract

The utility model relates to a special-shaped pedestrian cable-stayed bridge steel structure bridge tower inhaul cable anchoring device which comprises a bridge tower, the bridge tower comprises an upper wall plate, a lower wall plate and a plurality of transverse partition plates, the upper wall plate and the lower wall plate are distributed at intervals in the longitudinal bridge direction, the transverse partition plates are connected with the upper wall plate and the lower wall plate, and the plate faces of the upper wall plate, the lower wall plate and the transverse partition plates are perpendicular to the vertical face in the longitudinal bridge direction. A plurality of anchoring points are arranged on the lower wall plate, and the transverse partition plates are arranged at the anchoring points in a one-to-one correspondence mode. The inhaul cable lug plates are arranged at the anchoring points in a one-to-one correspondence mode, the planes of the inhaul cable lug plates are parallel to the vertical plane in the longitudinal bridge direction, a connecting groove is formed in the transverse partition plate, the inhaul cable lug plates penetrate through the lower wall plate and are embedded into the connecting groove, the inhaul cable lug plates are welded and fixed to the lower wall plate and the transverse partition plate, and anchor holes for anchoring inhaul cables are formed in the inhaul cable lug plates. The anchor holes are located in the side, away from the diaphragm, of the lower wallboard. The requirements for safe anchoring and effective force transmission of the special-shaped bridge tower and the inhaul cable can be met, construction is convenient and fast, and inspection and maintenance of a bridge in an operation section are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cable-stayed bridges, in particular to a steel structure tower cable anchoring device for a special-shaped pedestrian cable-stayed bridge. Background Art

[0002] As a cable-stayed bridge, the main beam of the bridge deck is lifted by many cables directly connected to the bridge tower. In order to safely and firmly bear the force transmitted by the cables, a safe and effective anchoring device must be set between the bridge tower and the cables. Conventional steel structure bridge towers are mostly linear, and the corresponding anchoring devices include saddle support type, saddle anchor type, anchor beam type, and support plate type.

[0003] Since pedestrian cable-stayed bridges are designed to highlight the regional landscape, special-shaped steel structure bridge towers are often used. Special-shaped bridge towers use conventional cable anchoring devices, which have problems such as difficulty in inserting anchoring devices into towers and difficulty in tensioning and anchoring cables in the early installation stage, and problems such as difficulty in daily inspection and maintenance in the later operation and maintenance stage.

[0004] Therefore, solving the pain points of anchoring tower cables of special-shaped bridges and achieving safe anchoring of tower cables of special-shaped bridges while improving the convenience of construction and reducing the difficulty of subsequent daily inspection and maintenance is an engineering and technical problem that needs to be solved urgently. Utility Model Content

[0005] Based on the above description, the utility model provides a special-shaped pedestrian cable-stayed bridge steel structure tower cable anchoring device to solve the pain points of special-shaped bridge tower cable anchoring, achieve special-shaped bridge tower cable anchoring safety, and at the same time improve the convenience of construction and reduce the difficulty of subsequent daily inspection and maintenance.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] The present application provides a special-shaped pedestrian cable-stayed bridge steel structure tower cable anchoring device, the technical solution adopted is as follows:

[0008] A special-shaped pedestrian cable-stayed bridge steel structure tower cable anchoring device, comprising:

[0009] A bridge tower, comprising an upper wall plate, a lower wall plate and a plurality of transverse diaphragms, wherein the upper wall plate and the lower wall plate are spaced apart along the longitudinal direction of the bridge, the transverse diaphragms are arranged between the upper wall plate and the lower wall plate and connect the upper wall plate and the lower wall plate, the upper wall plate, the lower wall plate and the transverse diaphragm plate surfaces are perpendicular to a vertical plane along the longitudinal direction of the bridge, the lower wall plate is provided with a plurality of anchor points for anchoring a plurality of cables respectively, and a plurality of the transverse diaphragms are arranged at the plurality of anchor points in a one-to-one correspondence;

[0010] A plurality of cable ear plates are arranged at a plurality of anchoring points in a one-to-one correspondence, the plane of the cable ear plate is parallel to the vertical plane along the longitudinal bridge direction, a connecting groove is provided on the side of the transverse partition close to the lower wall plate, the cable ear plate passes through the lower wall plate and is embedded in the connecting groove, and the cable ear plate is welded and fixed to the lower wall plate and the transverse partition, and an anchor hole for anchoring the cable is provided on the cable ear plate, and the anchor hole is located on the side of the lower wall plate away from the transverse partition.

[0011] Preferably, a first stiffening plate is provided between the cable ear plate and the lower wall plate, and the first stiffening plate is located on a side of the lower wall plate close to the transverse partition plate.

[0012] Preferably, a second stiffening plate is provided between the cable ear plate and the lower wall plate, and the second stiffening plate is located on a side of the lower wall plate away from the transverse partition plate.

[0013] Preferably, ear plate reinforcement plates are respectively provided on both sides of the cable ear plate, and the ear plate reinforcement plates are attached to the cable ear plate and are arranged around the anchor hole.

[0014] Preferably, the surface of the diaphragm is a plane and is coplanar with the axis of the cable anchored at its corresponding anchor point.

[0015] Preferably, on the plane of the cable ear plate, the center point of the cable ear plate falls on the projection of the lower wall plate on the plane of the cable ear plate.

[0016] Preferably, on the plane of the cable ear plate, the center point of the cable ear plate does not coincide with the intersection point of the projections of the transverse partition plate and the lower wall plate on the plane of the cable ear plate.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. The bridge tower of the present application includes an upper wall plate, a lower wall plate and a diaphragm, which can bear the tension of the cables in the direction of the force of the cables and provide an anchoring foundation for the cables. The cable ear plate serves as a connecting structure between the cables and the bridge tower, which is convenient for the anchoring construction of the cables. In the working state, the cable tension is transmitted to the lower wall plate and the diaphragm through the cable ear plate, and then effectively diffused to the entire bridge tower, which can meet the safe anchoring and effective force transmission requirements of special-shaped bridge towers and cables; during construction, the bridge tower can be welded into shape in the factory, and holes and connecting grooves for the installation of the cable ear plates can be preset on the lower wall plate and the diaphragm, and the cable ear plate can be welded and fixed to the lower wall plate and the diaphragm on site to form a whole, which is convenient and quick to construct, and convenient for inspection and maintenance of bridges in operating sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a cable anchoring device for a steel structure tower of a special-shaped pedestrian cable-stayed bridge provided by an embodiment of the utility model;

[0020] Figure 2 A structural schematic diagram of another perspective of the steel structure bridge tower cable anchoring device for a special-shaped pedestrian cable-stayed bridge provided by an embodiment of the utility model;

[0021] Figure 3 A structural schematic diagram of a middle ear plate reinforcement plate of a steel structure bridge tower cable anchoring device for a special-shaped pedestrian cable-stayed bridge provided by an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of a first stiffening plate and a second stiffening plate in a cable anchoring device for a steel structure tower of a special-shaped pedestrian cable-stayed bridge provided in an embodiment of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Bridge tower; 2. Upper wall plate; 3. Lower wall plate; 4. Transverse diaphragm; 5. Cable ear plate; 51. Anchor hole; 6. First stiffening plate; 7. Second stiffening plate; 8. Ear plate reinforcement plate. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0028] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0029] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0030] Reference Figure 1-4 As shown, the present application provides a cable anchoring device for a steel structure tower of a special-shaped pedestrian cable-stayed bridge, which includes a tower 1 and a plurality of cable ear plates 5. The tower 1 includes an upper wall plate 2, a lower wall plate 3 and a plurality of transverse partitions 4. The upper wall plate 2 and the lower wall plate 3 are spaced apart along the longitudinal direction of the bridge. The transverse partition 4 is arranged between the upper wall plate 2 and the lower wall plate 3 and connects the upper wall plate 2 and the lower wall plate 3. The upper wall plate 2, the lower wall plate 3 and the transverse partition 4 are perpendicular to the vertical plane along the longitudinal direction of the bridge. The lower wall plate 3 is provided with a plurality of cable anchors for anchoring the plurality of cables. Anchoring points, multiple transverse partitions 4 are arranged at the multiple anchoring points in a one-to-one manner; multiple cable ear plates 5 are arranged at the multiple anchoring points in a one-to-one manner, the plane of the cable ear plate 5 is parallel to the vertical plane along the longitudinal bridge direction, a connecting groove is provided on the side of the transverse partition 4 close to the lower wall plate 3, the cable ear plate 5 passes through the lower wall plate 3 and is embedded in the connecting groove, and the cable ear plate 5 is welded and fixed to the lower wall plate 3 and the transverse partition 4, and an anchor hole 51 for anchoring the cable is provided on the cable ear plate 5, and the anchor hole 51 is located on the side of the lower wall plate 3 away from the transverse partition 4.

[0031] Reference Figure 1-2 As shown, specifically, the shapes and sizes of the upper wall panels 2 and the lower wall panels 3 are designed according to the number of cables and the requirements of the anchoring points, so that the bridge tower 1 formed by the upper wall panels 2, the lower wall panels 3 and the cross diaphragm 4 can stably bear the tension of the cables. The upper wall panels 2, the lower wall panels 3 and the cross diaphragm 4 are welded in the factory to form a whole. The lower wall panels 3 are provided with preset openings at the anchoring points for the cable ear plates 5 to pass through, and the cross diaphragm 4 is provided with preset connecting grooves for the cable ear plates 5 to be embedded. The size of the openings on the lower wall panels 3 and the size of the connecting grooves on the cross diaphragm 4 match the thickness and extension length of the cable ear plates 5 to ensure the welding strength of the cable ear plates 5, the lower wall panels 3 and the cross diaphragm 4.

[0032] Reference Figure 1As shown, further, when designing the bridge tower 1, the position of the diaphragm 4 is designed according to the designed cable anchoring points, so that the surface of the diaphragm 4 is flat and coplanar with the axis of the cable anchored at its corresponding anchoring point, so that the tension of the corresponding cable can be better borne by each diaphragm 4, thereby effectively transmitting the tension of each cable to the bridge tower 1.

[0033] Reference Figure 1 As shown, further, when designing the cable ear plate 5, according to the force it receives, the center point ( Figure 1 The center point of the middle ear plate) falls on the projection of the lower wall plate 3 on the plane of the cable ear plate 5, and at the same time, the intersection point ( Figure 1 The ear plate anchor points) do not overlap.

[0034] Reference Figure 1-2 and Figure 4 As shown, further, in order to improve the connection strength between the cable ear plate 5 and the lower wall plate 3, a first stiffening plate 6 and a second stiffening plate 7 are provided between the cable ear plate 5 and the lower wall plate 3, the first stiffening plate 6 is located on the side of the lower wall plate 3 close to the transverse diaphragm 4, and the second stiffening plate 7 is located on the side of the lower wall plate 3 away from the transverse diaphragm 4. Specifically, the first stiffening plate 6 and the second stiffening plate 7 are both perpendicular to the cable ear plate 5, and two first stiffening plates 6 and second stiffening plates 7 are respectively provided on both sides of the cable ear plate 5, the two first stiffening plates 6 on one side of the cable ear plate 5 are distributed on both sides of the transverse diaphragm 4, and the two second stiffening plates 7 on one side of the cable ear plate 5 are also distributed on both sides of the transverse diaphragm 4. The specifications and dimensions of the cable ear plate 5, the first stiffening plate 6 and the second stiffening plate 7 are designed according to the structure and force.

[0035] Reference Figure 1-3 As shown, further, ear plate reinforcement plates 8 are respectively provided on both sides of the cable ear plate 5, the ear plate reinforcement plates 8 are attached to the cable ear plate 5 and are arranged around the anchor hole 51. Specifically, the ear plate reinforcement plates 8 and the cable ear plate 5 are welded and fixed, and the ear plate reinforcement plates 8 improve the strength of the cable ear plate 5 at the anchor hole 51 to improve the anchoring strength of the cable and improve safety.

[0036] During the construction of this embodiment, the bridge tower 1, the cable lug plate 5, the first stiffening plate 6, the second stiffening plate 7, and the lug plate reinforcement plate 8 are processed and manufactured in the steel structure processing factory. The sizes of the cable lug plate 5, the lug plate reinforcement plate 8, the first stiffening plate 6, and the second stiffening plate 7 are determined according to the structure and force calculation. The bridge tower 1 is welded to form a whole in the factory. The opening and connection groove sizes of the lower wall plate 3 and the diaphragm 4 of the bridge tower 1 match the thickness and extension length of the cable lug plate 5. The reserved openings and connection grooves of the lower wall plate 3 and the diaphragm 4 should be arranged in the center and symmetrically. At the same time, the weakening of the original cross section after the opening should be verified to ensure the structural safety of the bridge tower 1. The cable lug plate 5 and the lug plate reinforcement plate 8 are welded to form a whole in the factory. After processing and welding, the same coating system is used as the bridge tower 1, and pre-assembled in the factory to ensure that it can be accurately and firmly installed on the lower wall plate 3 and the diaphragm 4 of the bridge tower 1. After the factory non-destructive testing and other acceptance of each structure is completed, it is transported to the construction site. After the construction of the lower structure of the bridge tower 1 is completed, the bridge tower 1 segments are hoisted and assembled on site. At the same time, according to the force system of the bridge tower 1, temporary support and fixing measures are reasonably set to ensure that the force of the bridge tower 1 is in a safe state. Then, the cable lugs 5, the first stiffening plates 6 and the second stiffening plates 7 are installed and welded to form a solid whole. After the installation is completed and the working state is entered, the cable tension can be tensioned to the designed cable tension.

[0037] When the anchoring device of this embodiment is in operation, the cable tension is transmitted to the lower wall plate 3 and the diaphragm 4 of the bridge tower 1 through the cable ear plate 5, the first stiffening plate 6 and the second stiffening plate 7, and then effectively diffused to the bridge tower 1. During the operation of the bridge, when the device reaches the service life and needs to be replaced as a whole, temporary fixing measures should be set for the bridge tower 1 to ensure that the force on the bridge tower 1 is in a safe state.

[0038] This embodiment has the following advantages:

[0039] 1. Meet the safe anchoring requirements of the cables of special-shaped bridge tower 1, and safely and effectively transmit the cable tension to bridge tower 1.

[0040] 2. Welding and production in the factory and assembly on site can effectively control the welding and installation quality.

[0041] 3. Save cost, simple structure, complete functions, factory processing, on-site installation, with significant cost advantages, can save engineering resources and labor costs.

[0042] 4. Shortened the construction period and improved work efficiency.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable anchoring device for a steel structure tower of a special-shaped pedestrian cable-stayed bridge, characterized in that: include: A bridge tower (1), comprising an upper wall plate (2), a lower wall plate (3) and a plurality of transverse diaphragms (4), wherein the upper wall plate (2) and the lower wall plate (3) are spaced apart in the longitudinal direction of the bridge, the transverse diaphragms (4) are arranged between the upper wall plate (2) and the lower wall plate (3) and connect the upper wall plate (2) and the lower wall plate (3), the plate surfaces of the upper wall plate (2), the lower wall plate (3) and the transverse diaphragms (4) are perpendicular to a vertical plane in the longitudinal direction of the bridge, the lower wall plate (3) is provided with a plurality of anchoring points for anchoring a plurality of cables respectively, and a plurality of transverse diaphragms (4) are arranged at the plurality of anchoring points in a one-to-one correspondence; A plurality of cable lug plates (5) are arranged at a plurality of anchoring points in a one-to-one correspondence, the plane of the cable lug plates (5) is parallel to the vertical plane along the longitudinal bridge direction, a connecting groove is provided on the side of the transverse partition (4) close to the lower wall plate (3), the cable lug plates (5) pass through the lower wall plate (3) and are embedded in the connecting groove, and the cable lug plates (5) are welded and fixed to the lower wall plate (3) and the transverse partition (4), and an anchor hole (51) for anchoring the cable is provided on the cable lug plates (5), and the anchor hole (51) is located on the side of the lower wall plate (3) away from the transverse partition (4).

2. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 1 is characterized in that: A first stiffening plate (6) is provided between the cable lug plate (5) and the lower wall plate (3), and the first stiffening plate (6) is located on a side of the lower wall plate (3) close to the transverse partition plate (4).

3. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 1 is characterized in that: A second stiffening plate (7) is provided between the cable lug plate (5) and the lower wall plate (3), and the second stiffening plate (7) is located on a side of the lower wall plate (3) away from the transverse partition plate (4).

4. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 1 is characterized in that: Ear plate reinforcement plates (8) are respectively provided on both sides of the cable ear plate (5), and the ear plate reinforcement plates (8) are fitted to the cable ear plate (5) and are arranged around the anchor hole (51).

5. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 1 is characterized in that: The surface of the transverse partition (4) is a plane and is coplanar with the axis of the cable anchored at its corresponding anchor point.

6. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 1 is characterized in that: On the plane of the cable lug plate (5), the center point of the cable lug plate (5) falls on the projection of the lower wall plate (3) on the plane of the cable lug plate (5).

7. The anchoring device for the steel structure tower cable of a special-shaped pedestrian cable-stayed bridge according to claim 6 is characterized in that: On the plane of the cable lug plate (5), the center point of the cable lug plate (5) does not coincide with the intersection point of the projections of the transverse partition plate (4) and the lower wall plate (3) on the plane of the cable lug plate (5).

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