Anchor cable type steel distribution beam anchorage for hoisting construction of V-shaped canyon bridge

Abstract

The utility model discloses an anchor cable type steel distribution beam anchor for hoisting construction of a V-shaped canyon bridge, which belongs to the technical field of distribution beam anchors and comprises an anchoring mechanism fixedly arranged on a rock stratum surface. The distribution beam structure is connected with the anchoring mechanism, and the distribution beam structure is fixedly arranged on the rock stratum surface by driving the anchoring mechanism; and the multiple cables are movably connected with the distribution beam structure, and each cable can freely move on the horizontal plane through the distribution beam structure. Under the action of the anchoring mechanism, the distributive girder structure realizes uniform distribution of acting force, the non-uniform bearing capacity of the distributive girder structure is avoided, and meanwhile, the hoisting of bridges at different positions can be met, so that the aims of canceling the arrangement of cable bent towers, fully utilizing topographic and geological conditions and greatly saving the construction cost are fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution beam anchorages, in particular to a cable - type steel distribution beam anchorage for hoisting construction of V - shaped canyon bridges. Background Technique

[0002] For long - span arch bridges, due to their large self - weight and high installation height at each stage, the conventional truck crane method cannot meet the construction requirements of segmental hoisting of the arch ring. Therefore, cable - supported hoisting methods are mostly selected for the construction schemes of long - span bridges.

[0003] When a bridge needs hoisting construction, according to the existing terrain and geological conditions on both banks, in the case of steep slopes on both banks, the suspension system directly anchors to the mountain bodies on both banks using the existing terrain. For mountain bodies with thin overburden and good strength and integrity of the underlying bedrock, cave anchors and cable - type structures are suitable. In the prior art, it is difficult to balance the forces between cables and between cable loads, and it is difficult to flexibly move and adjust the anchor points according to the hoisting positions. Therefore, it is difficult to ensure the safety and convenience of bridge hoisting construction during the construction period. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art. For this reason, the present utility model provides a cable - type steel distribution beam anchorage for hoisting construction of V - shaped canyon bridges, which can balance the unbalanced forces between cables and between cable loads through the steel distribution beam, and can flexibly move the anchor point position, thereby ensuring the safety and convenience of bridge hoisting construction during the construction period.

[0005] The cable - type steel distribution beam anchorage for hoisting construction of V - shaped canyon bridges according to the embodiment of the present utility model includes an anchoring mechanism fixedly arranged on the rock stratum; a distribution beam structure connected to the anchoring mechanism, and the distribution beam structure is fixedly arranged on the rock stratum by driving the anchoring mechanism; a plurality of cables movably connected to the distribution beam structure, and each cable can freely move on the horizontal plane through the distribution beam structure.

[0006] The cable - type steel distribution beam anchorage for hoisting construction of V - shaped canyon bridges according to the embodiment of the present utility model has at least the following beneficial effects: the anchoring mechanism is fixedly arranged on the vertical rock stratum, the distribution beam structure is arranged at the front end of the anchoring mechanism, both the anchoring mechanism and the distribution beam structure extend in the left - right direction, the cables are connected to the distribution beam structure, and each cable can freely move in the left - right direction through the distribution beam structure. Thus, under the action of the anchoring mechanism, the distribution beam structure realizes uniform distribution of the acting forces, avoids uneven load - bearing capacity of the distribution beam structure, and can meet the hoisting of bridges at different positions, so as to achieve the purpose of canceling the setting of the pylon, making full use of the topographic and geological conditions, and greatly saving the project cost.

[0007] According to some embodiments of the present utility model, the anchoring mechanism includes: a concrete seat, the concrete seat is covered and arranged on a vertical rock stratum; a plurality of connecting components, the plurality of connecting components are sequentially connected to the profiled steel distribution beam, the concrete seat and the rock stratum, and the extending direction of each connecting component is perpendicular to the vertical rock stratum.

[0008] According to some embodiments of the present utility model, the distribution beam structure includes: a profiled steel distribution beam, the profiled steel distribution beam is fixedly connected to the concrete seat through a connecting component, and the profiled steel distribution beam extends along the horizontal direction; a pulley seat, the number of the pulley seats corresponds to the number of the cable stays, a plurality of pulleys are rotatably arranged on each pulley seat, each cable stay corresponds to one pulley, the pulley seats are all slidably arranged on the profiled steel distribution beam, and each pulley seat can move along the direction restricted by the profiled steel distribution beam.

[0009] According to some embodiments of the present utility model, a steel bar mesh group is arranged in the concrete seat, the number of the steel bar mesh groups corresponds to the number of the connecting components, each connecting component corresponds to one steel bar mesh group, and the steel bar mesh group is arranged parallel to the vertical rock stratum.

[0010] According to some embodiments of the present utility model, the steel bar mesh group includes at least two steel bar meshes, the steel bar meshes are uniformly arranged in sequence along the direction perpendicular to the rock stratum, and the steel bar meshes are used to enhance the structural stability of the concrete seat.

[0011] According to some embodiments of the present utility model, the connecting component includes: a seamless steel pipe, the seamless steel pipe penetrates through the concrete seat and extends towards the rock stratum, and the seamless steel pipe is used to enhance the bearing capacity of the concrete seat; a cable anchor, the cable anchor is arranged in the seamless steel pipe, the cable anchor is connected to the profiled steel distribution beam through an anchor fitting, the cable anchor sequentially penetrates through the profiled steel distribution beam and the concrete seat, and extends towards the rock stratum.

[0012] According to some embodiments of the present utility model, a plurality of binding pieces are arranged on the cable stay, the plurality of binding pieces extend along the extending direction of the cable stay, and the binding pieces are used to lock the overlapping cable stay segments.

[0013] According to some embodiments of the present utility model, the profiled steel distribution beam includes: a rock stratum connecting plate, the rock stratum connecting plate is fixedly arranged on the concrete seat; a main beam, the main beam is arranged on the rock stratum connecting plate, and the main beam is arranged along the extending direction of the concrete seat; a pulley connecting plate, the pulley connecting plate is arranged at one end of the main beam opposite to the rock stratum connecting plate, and the pulley connecting plate is movably connected to the pulley seat.

[0014] According to some embodiments of the present utility model, the profiled steel distribution beam further includes a plurality of stiffening rib plates, the plurality of stiffening rib plates are symmetrically arranged at the upper and lower ends of the main beam, the plurality of stiffening rib plates are arranged along the extending direction of the main beam, and the stiffening rib plates are used to enhance the structural stability of the profiled steel distribution beam.

[0015] According to some embodiments of the present utility model, the connection assembly further includes a backing plate. The number of backing plates corresponds to the number of anchor devices. Each anchor device is correspondingly provided with a backing plate. The backing plate is arranged between the anchor device and the rock formation connection plate, and the backing plate is used for distributing the load.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0018] Figure 1 It is a schematic structural diagram of a cable anchor steel beam anchor block for hoisting construction of a V-shaped canyon bridge according to an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 the sectional view in

[0020] Figure 3 is Figure 1 the top view of the steel beam distribution in

[0021] Figure 4 is Figure 1 the front view of the steel beam distribution in

[0022] Figure 5 is Figure 1 the schematic structural diagram of the steel beam distribution in

[0023] Reference Signs:

[0024] Anchoring mechanism 100, concrete seat 110, reinforcing mesh group 111, reinforcing mesh 1111, connection assembly 120, seamless steel pipe 121, cable 122, anchor device 123, backing plate 124;

[0025] Distribution beam structure 200, steel beam distribution 210, rock formation connection plate 211, main beam 212, pulley connection plate 213, stiffening rib plate 214, pulley seat 220, pulley 221;

[0026] Cable 300, binding piece 310;

[0027] Rock formation 10, rock formation surface 20. Detailed Embodiments

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0030] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of the first time, the second time, etc., it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0032] Reference Figures 1 to 5 Describe the cable - type steel distribution beam anchor for the hoisting construction of a V - shaped canyon bridge according to an embodiment of the present utility model.

[0033] As Figures 1 to 5 shown, the cable - type steel distribution beam anchor for the hoisting construction of a V - shaped canyon bridge includes an anchoring mechanism 100, and the anchoring mechanism 100 is fixedly arranged on the rock formation surface 20; a distribution beam structure 200, the distribution beam structure 200 is connected to the anchoring mechanism 100, and the distribution beam structure 200 is fixedly arranged on the rock formation surface 20 through the anchoring mechanism 100; a plurality of cables 300, the plurality of cables 300 are movably connected to the distribution beam structure 200, and the cables 300 can move freely on the horizontal plane through the distribution beam structure 200.

[0034] It should be noted that in the hoisting construction project of the bridge, according to the existing terrain and geological conditions on both banks, when the slopes on both banks are relatively steep, the existing terrain will be directly utilized to anchor on the mountain bodies on both banks. Since the overburden layer of the mountain body is relatively thin and the strength and integrity of the underlying bedrock are relatively good, it is suitable for the structure of the cavity anchor and the cable 122. The main anchor piers on both banks are designed as the cable 122 distribution beam structure. The steel beam distribution beam 210 is anchored through the cable 122, and then the tension plate and the anchoring pulley 221 are arranged on the distribution beam to anchor the steel cable. The high-strength bolts are used to connect the seat tension plate and the anchor beam. In the prior art, since the anchoring pulley 221 is fixedly arranged on the rock stratum 10, it is difficult to balance the acting forces between the cables 122 and between the loads of the cable 300, so it is difficult to ensure the safety of the bridge hoisting construction during the construction period.

[0035] As Figure 1 and Figure 2 shown, the anchoring mechanism 100 is fixedly arranged on the vertical rock stratum 20, the distribution beam structure 200 is arranged at the front end of the anchoring mechanism 100, both the anchoring mechanism 100 and the distribution beam structure 200 extend in the left-right direction, the cable 300 is connected to the distribution beam structure 200, and each cable 300 can freely move in the left-right direction through the distribution beam structure 200. Thus, under the action of the anchoring mechanism 100, the distribution beam structure 200 realizes the uniform distribution of the acting forces, avoids the uneven bearing capacity of the distribution beam structure 200, and at the same time can meet the hoisting of the bridge at different positions, so as to achieve the purpose of canceling the setting of the cable tower, making full use of the terrain and geological conditions, and greatly saving the project cost.

[0036] In some specific embodiments of the present invention, the anchoring mechanism 100 includes: a concrete seat 110, the concrete seat 110 is covered on the vertical rock stratum 20; a plurality of connecting components 120, the plurality of connecting components 120 are sequentially connected to the steel beam distribution beam 210, the concrete seat 110 and the rock stratum 10, and the extending direction of each connecting component 120 is perpendicular to the vertical rock stratum 20. As Figure 1 and Figure 2 shown, the concrete seat 110 is covered on the vertical rock stratum 20 and extends in the left-right direction, and the plurality of connecting components 120 are arranged in the concrete seat 110 in the front-rear direction and fixedly connect the concrete seat 110 to the vertical rock stratum 20.

[0037] In some specific embodiments of the present utility model, the distribution beam structure 200 includes: a profiled steel distribution beam 210, the profiled steel distribution beam 210 is fixedly connected to the concrete base 110 through a connection assembly 120, and the profiled steel distribution beam 210 extends in the horizontal direction; pulley seats 220, the number of pulley seats 220 corresponds to the number of cables 300, a plurality of pulleys 221 are rotatably arranged on each pulley seat 220, each pulley 221 corresponds to a cable 300, the pulley seats 220 are all slidably arranged on the profiled steel distribution beam 210, and each pulley seat 220 can move along the direction restricted by the profiled steel distribution beam 210.

[0038] As Figure 1 shown, the profiled steel distribution beam 210 is horizontally arranged in the left-right direction, the profiled steel distribution beam 210 is fixedly connected to the concrete base 110 through a connection assembly 120, a plurality of pulley seats 220 are slidably arranged on the profiled steel distribution beam 210, and pulleys 221 are correspondingly arranged on each pulley seat 220. In this specific embodiment, one or more pulleys 221 are correspondingly arranged on one pulley seat 220. Correspondingly, each pulley 221 is correspondingly connected to a cable 300. Thus, the pulley seat 220 can freely slide on the profiled steel distribution beam 210 in the left-right direction, thereby changing the force direction of the cable 300, and meeting the hoisting of bridges at different positions through the profiled steel distribution beam 210.

[0039] In some specific embodiments of the present utility model, a steel bar mesh group 111 is arranged in the concrete base 110, the number of steel bar mesh groups 111 corresponds to the number of connection assemblies 120, each connection assembly 120 corresponds to a steel bar mesh group 111, and the steel bar mesh group 111 is arranged parallel to the vertical rock formation 20. Specifically, the steel bar mesh group 111 includes at least two steel bar meshes 1111, the steel bar meshes 1111 are evenly distributed in sequence along the direction perpendicular to the rock formation 20, and the steel bar meshes 1111 are used to enhance the structural stability of the concrete base 110.

[0040] It should be noted that the strength of concrete is relatively high in the compressive direction, but relatively weak in the tensile direction. By adding the steel bar meshes 1111, a continuous steel bar mesh network can be formed in the concrete, effectively increasing the overall tensile strength of the concrete, reducing the stress concentration caused by the load, and improving the durability and bearing capacity of the concrete structure. As Figure 1 shown, in this specific embodiment, 7 connection assemblies 120 are arranged, then 7 groups of steel bar mesh groups 111 are correspondingly arranged, and the steel bar mesh groups 111 are located at one end of the concrete base 110 far from the vertical rock formation 20. Among them, each steel bar mesh group 111 has two steel bar meshes 1111, and the two steel bar meshes 1111 are arranged inside the concrete base 110 in the front-back direction.

[0041] In some specific embodiments of the present utility model, the connection assembly 120 includes: a seamless steel pipe 121, which penetrates through the concrete base 110 and extends towards the rock formation 10. The seamless steel pipe 121 is used to enhance the bearing capacity of the concrete base 110; a cable 122, which is inserted into the seamless steel pipe 121. The cable 122 is connected to the profiled steel distribution beam 210 through an anchor 123. The cable 122 sequentially penetrates through the profiled steel distribution beam 210 and the concrete base 110 and extends towards the direction of the rock formation 10.

[0042] As Figure 2 shown, the seamless steel pipe 121 is inserted through the concrete base 110 in the front-rear direction and extends backward into the interior of the rock formation 10. The cable 122 penetrates through the seamless steel pipe 121 from the front end of the concrete base 110 and extends backward into the interior of the rock formation 10, and the profiled steel distribution beam 210 is fixedly connected to the concrete base 110 through the anchor 123. It should be noted that the cable 122 is used to transfer and absorb tensile force. The seamless steel pipe 121 has excellent tensile properties, can withstand the tensile force of the structure, and transfer it to the surrounding rock formation 10 structure to provide stable support and fixing force, form a reliable anchorage, provide a wider load-bearing area, make the load be more evenly transferred and distributed, and reduce the risk of local damage to the rock formation 10 or the concrete base 110.

[0043] In some specific embodiments of the present utility model, a plurality of binding members 310 are provided on the cable 300. The plurality of binding members 310 extend along the extension direction of the cable 300. The binding members 310 are used to lock the overlapping cable 300 segments to ensure that the cable 300 maintains the correct position during the sliding process and reduce the risk of slipping or displacement. Specifically, the binding member 310 can be a cable 300 knot, a cable 300 clip or a cable 300 sleeve.

[0044] In some specific embodiments of the present utility model, the profiled steel distribution beam 210 includes: a rock formation connecting plate 211, which is fixedly arranged on the concrete base 110; a main beam 212, which is arranged on the rock formation connecting plate 211. The main beam 212 is arranged along the extension direction of the concrete base 110; a pulley 221 connecting plate 213, which is arranged at the opposite end of the main beam 212 and the rock formation connecting plate 211. The pulley 221 connecting plate 213 is movably connected to the pulley seat 220.

[0045] As Figure 5As shown in the figure, the main beam 212 extends in the left-right direction. A pulley 221 connecting plate 213 is provided along the length direction at the front end of the main beam 212, and a rock formation connecting plate 211 is provided along the length direction at the rear end. The main beam 212 is fixedly connected to the concrete base 110 through the rock formation connecting plate 211 and is slidably connected to the pulley seat 220 through the pulley 221 connecting plate 213. Specifically, the anchor cable 122 passes through the rock formation connecting plate 211 and fixes the main beam 212 on the concrete base 110.

[0046] In some specific embodiments of the present invention, the profiled steel distribution beam 210 further includes a plurality of stiffening rib plates 214. As Figure 4 shown, the plurality of stiffening rib plates 214 are symmetrically arranged at the upper and lower ends of the main beam 212. The plurality of stiffening rib plates 214 are arranged along the extending direction of the main beam 212. The stiffening rib plates 214 are used to enhance the structural stability of the profiled steel distribution beam 210.

[0047] In some specific embodiments of the present invention, the connection assembly 120 further includes a backing plate 124. As Figure 3 shown, the number of the backing plates 124 corresponds to the number of the anchor fittings 123. Each anchor fitting 123 is correspondingly provided with a backing plate 124. The backing plate 124 is arranged between the anchor fitting 123 and the rock formation connecting plate 211 and is used to disperse the load.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. An anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction, characterized in that: include: An anchoring mechanism (100), wherein the anchoring mechanism (100) is fixedly arranged on a rock layer surface (20); A distribution beam structure (200), the distribution beam structure (200) being connected to the anchoring mechanism (100), and the distribution beam structure (200) being fixedly arranged on the rock layer surface (20) by driving the anchoring mechanism (100); A plurality of cables (300) are movably connected to the distribution beam structure (200), and each of the cables (300) can move freely on a horizontal plane through the distribution beam structure (200).

2. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 1 is characterized in that: The anchoring mechanism (100) comprises: A concrete base (110), wherein the concrete base (110) is arranged to cover the vertical rock layer (20); A plurality of connection components (120), wherein the plurality of connection components (120) are sequentially connected to the steel distribution beam (210), the concrete seat (110) and the rock layer (10), and the extension direction of each connection component (120) is perpendicular to the vertical rock layer (20).

3. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 2 is characterized in that: The distribution beam structure (200) comprises: A steel distribution beam (210), wherein the steel distribution beam (210) is fixedly connected to the concrete seat (110) via the connection assembly (120), and the steel distribution beam (210) extends in a horizontal direction; Pulley seats (220), the number of the pulley seats (220) corresponds to the number of the cables (300), each of the pulley seats (220) is rotatably provided with a plurality of pulleys (221), each of the pulleys (221) is correspondingly provided with one of the cables (300), the pulley seats (220) are slidably provided on the steel distribution beam (210), and each of the pulley seats (220) can move along the direction limited by the steel distribution beam (210).

4. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 2 is characterized in that: A steel mesh group (111) is arranged in the concrete seat (110), the number of the steel mesh groups (111) corresponds to the number of the connection components (120), each connection component (120) is correspondingly provided with a steel mesh group (111), and the steel mesh group (111) is arranged parallel to the vertical rock layer surface (20).

5. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 4 is characterized in that: The steel mesh group (111) comprises at least two steel meshes (1111), the steel meshes (1111) are uniformly distributed in sequence along a direction perpendicular to the rock layer (20), and the steel meshes (1111) are used to enhance the structural stability of the concrete seat (110).

6. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 3 is characterized in that: The connection assembly (120) comprises: a seamless steel pipe (121), the seamless steel pipe (121) passing through the concrete seat (110) and extending toward the rock layer (10), the seamless steel pipe (121) being used to enhance the bearing capacity of the concrete seat (110); An anchor cable (122), the anchor cable (122) is inserted into the seamless steel pipe (121), the anchor cable (122) is connected to the steel distribution beam (210) through an anchor (123), the anchor cable (122) sequentially passes through the steel distribution beam (210) and the concrete seat (110), and extends toward the rock layer (10).

7. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 1 is characterized in that: The cable (300) is provided with a plurality of binding members (310), the plurality of binding members (310) extending along the extension direction of the cable (300), and the binding members (310) are used to lock the overlapping cable (300) sections.

8. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 3 is characterized in that: The steel distribution beam (210) comprises: A rock formation connection plate (211), wherein the rock formation connection plate (211) is fixedly disposed on the concrete seat (110); A main beam (212), wherein the main beam (212) is arranged on the rock layer connection plate (211), and the main beam (212) is arranged along the extension direction of the concrete seat (110); A pulley (221) connecting plate (213), wherein the pulley (221) connecting plate (213) is arranged at an end of the main beam (212) opposite to the rock formation connecting plate (211), and the pulley (221) connecting plate (213) is movably connected to the pulley seat (220).

9. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 8 is characterized in that: The steel distribution beam (210) further comprises a plurality of stiffening ribs (214), wherein the plurality of stiffening ribs (214) are symmetrically arranged at the upper and lower ends of the main beam (212), and the plurality of stiffening ribs (214) are arranged along the extension direction of the main beam (212), and the stiffening ribs (214) are used to enhance the structural stability of the steel distribution beam (210).

10. The anchor cable steel distribution beam anchor for V-shaped canyon bridge hoisting construction according to claim 6, characterized in that: The connection assembly (120) further includes a pad (124), the number of which corresponds to the number of the anchors (123), each anchor (123) is provided with a corresponding pad (124), the pad (124) is arranged between the anchor (123) and the rock formation connection plate (211), and the pad (124) is used to disperse the load.

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