Asymmetrically arranged steel structure cable bent tower anchoring system
By adopting asymmetrically arranged steel structure cable tower anchoring system in the bridge cable tower anchoring system, the problem of the steel anchor beam being out of control under the cable breakage condition is solved, and the stable load transmission and construction quality are achieved.
Patent Information
- Application Number
- CN202510124051.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2045-01-26
AI Technical Summary
In the prior art, the connection method between the steel anchor beam and the cow leg may cause the steel anchor beam to lose control and have low safety and stability under extreme operating conditions such as broken cables.
A steel structure cable tower anchoring system is adopted with an asymmetrical arrangement. One end of the steel anchor beam is movably connected to the corrupt leg and the other end is fixedly connected to the tower wall of the cable tower. Sliding grooves and sliding plates are arranged in the design to achieve the longitudinal free sliding of the steel anchor beam.
Under the condition of cable breakage, the load is borne by the tower wall on the fixed end side of the steel anchor beam, which simplifies the force transmission path of the anchor system, significantly reduces the amount of stirrups, reduces the difficulty of the tower wall construction, improves the construction quality and has good economic benefits.
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Figure CN119877380A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bridge structures, and in particular to an asymmetrically arranged steel structure cable tower anchoring system. Background Art
[0002] At present, the common anchoring forms of cable tower ends of large-span cable-stayed bridges mainly include: steel anchor beam anchoring, concrete tower wall anchoring and steel anchor box anchoring. Among them, the steel anchor beam anchoring structure is to place the steel anchor beam on the bracket, and the inclined cable is anchored on the pressure plates at both ends of the steel anchor beam through the steel conduit buried in the tower wall. The steel anchor beam itself can balance most of the horizontal force components of the inclined cables on both sides, and the vertical force components of the inclined cables are transmitted to the tower wall by the brackets on both sides.
[0003] The common connection method between the steel anchor beam and the corbel is to place the steel anchor beam on the steel corbel and set limit devices in the longitudinal and transverse directions of the bridge at both ends. This connection method enables the steel anchor beam to withstand most of the horizontal components generated by the constant load and operating load, and improves the stress state of the concrete tower wall. However, extreme working conditions such as cable breakage may cause the position of the steel anchor beam to be out of control, and its safety and stability are low. Summary of the invention
[0004] An embodiment of the present application provides an asymmetrically arranged steel structure cable tower anchoring system to solve the defect in the related art that a steel anchor beam is placed on a steel corbel, and the steel anchor beam and the corbel are connected by setting limit devices in the longitudinal and transverse directions of the bridge at both ends, which may cause the position of the steel anchor beam to be out of control and have low safety and stability under extreme working conditions such as cable breakage.
[0005] An embodiment of the present application provides an asymmetrically arranged steel structure cable tower anchoring system, comprising: a cable tower, a plurality of which are arranged along the longitudinal direction of the bridge and have two oppositely disposed tower walls; a corbel, which is installed on the tower wall on either side and is arranged in plurality along the height direction of the cable tower; and a steel anchor beam, one end of which is movably connected to the corbel and the other end of which is fixedly connected to the tower wall of the cable tower.
[0006] In some embodiments, a sliding groove is provided on the corbel, a sliding plate is connected to the sliding groove, and one end of the steel anchor beam is placed on the sliding plate.
[0007] In some embodiments, anchoring assemblies are provided on the tower walls on both sides of the cable tower, wherein the anchoring assemblies on one side are used to fix the corbels on the cable tower, and the anchoring assemblies on the other side are used to fix the steel anchor beams on the cable tower.
[0008] In some embodiments, the anchoring assembly includes: a first anchor plate, which is buried in the tower walls on both sides of the tower, wherein the first anchor plate on one side is fixed to the corbel, and the first anchor plate on the other side is fixed to the steel anchor beam; a first shear key, which is buried in the tower and fixed to the first anchor plate.
[0009] In some embodiments, the first anchor plate is further provided with a reinforcement component, and at least one group of the reinforcement components is provided on the first anchor plate fixed to the corbel on one side, and at least two groups of the reinforcement components are provided on the first anchor plate fixed to the anchor beam on the other side.
[0010] In some embodiments, each group of the reinforcement components includes: a second anchor plate, which is buried in the cable tower and fixed to the first anchor plate; and a second shear key, which is buried in the cable tower and fixed to the second anchor plate.
[0011] In some embodiments, cable anchoring assemblies are provided at both ends of the steel anchor beam, and the cable anchoring assemblies include: a first support plate, whose two sides are connected to the web of the steel anchor beam; a stiffening plate, whose two sides are fixed to the first support plate; an anchor plate, which is connected between the first support plate and the stiffening plate; and a bottom surface of the first support plate away from the corbel extending to the first anchor plate and fixed thereon.
[0012] In some embodiments, a second support plate is further provided at one end of the steel anchor beam away from the corbel, two sides of the second support plate are connected to the web of the steel anchor beam, and the bottom surface of the second support plate extends to be fixed on the first anchor plate.
[0013] In some embodiments, an installation space is provided between the corbel and the steel anchor beam.
[0014] In some embodiments, a deformation space is provided between the corbel and the tower wall of the tower.
[0015] The beneficial effects of the technical solution provided by this application include:
[0016] The embodiment of the present application provides an asymmetrically arranged steel structure cable tower anchoring system, in which one end of the steel anchor beam is fixed to a tower wall on one side of the cable tower, and the other end is movably connected to the corbel, so that the steel anchor beam at this end can slide freely longitudinally. Under the cable breaking condition, no matter whether the cable is broken at the movable end or the fixed end of the steel anchor beam, the cable breaking load is borne by the cable tower wall connected to the fixed end of the steel anchor beam. Therefore, it is only necessary to strengthen the cable tower wall connected to the fixed end of the steel anchor beam, and the cable tower wall connected to the movable end of the steel anchor beam hardly bears the longitudinal horizontal component of the inclined cable in either the operating condition or the cable breaking condition, thereby significantly reducing the amount of stirrups used and reducing the difficulty of tower wall construction, thereby ensuring the construction quality and having good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present application;
[0019] Figure 2 Provided for the embodiments of this application Figure 1 Sectional view at AA in the middle;
[0020] Figure 3 Provided for the embodiments of this application Figure 1 Sectional view at the middle BB;
[0021] Figure 4 A schematic diagram showing a first anchor plate and a second anchor plate provided in an embodiment of the present application;
[0022] Reference numerals:
[0023] 1. Cable tower; 10. Deformation space; 2. Corbel; 20. Top plate; 21. Side plate; 22. Bottom plate; 23. First stiffening rib; 3. Steel anchor beam; 300. Second stiffening rib; 301. End plate; 30. Installation space; 40. Sliding groove; 41. Sliding sheet; 50. First anchor plate; 51. First shear key; 60. Second anchor plate; 61. Second shear key; 70. First support plate; 71. Stiffening plate; 72. Anchor plate; 73. Second support plate; 8. Steel bar hole; 9. Vent hole. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0025] An embodiment of the present application provides an asymmetrically arranged steel structure cable tower anchoring system, which can solve the problem of placing a steel anchor beam on a steel corbel and connecting the steel anchor beam and the corbel by setting longitudinal and transverse limit devices at both ends, which may cause the position of the steel anchor beam to be out of control and have low safety and stability under extreme working conditions such as cable breakage.
[0026] See also Figures 1 to 4As shown, an embodiment of the present application provides an asymmetrically arranged steel structure cable tower anchoring system, comprising: a cable tower 1, a corbel 2 and a steel anchor beam 3, wherein a plurality of cable towers 1 are arranged along the longitudinal direction of the bridge, and the cable tower 1 has two oppositely arranged tower walls; the corbel 2 is installed on the tower wall on either side, and a plurality of them are arranged along the height direction of the cable tower 1; one end of the steel anchor beam 3 is movably connected to the corbel 2, and the other end is fixedly connected to the tower wall of the cable tower 1.
[0027] The asymmetric arrangement structure at both ends of the steel anchor beam 3 can better meet the needs of bridge loads and improve the applicability of the system. The movable connection design at one end of the steel anchor beam 3 connected to the corbel 2 allows the system to have a certain amount of space for movement when under stress, that is, under the condition of broken cable, the steel anchor beam 3 and the corbel 2 are movably connected to achieve the longitudinal free sliding of the steel anchor beam 3, while transmitting the vertical load between the steel anchor beam 3 and the corbel 2, and constraining the lateral horizontal displacement and vertical displacement of the steel anchor beam 3, thereby enhancing the flexibility and reliability of the system. The other end of the steel anchor beam 3 is fixed to the cable tower 1, which can transfer the load on the steel anchor beam 3 to the tower wall of the cable tower 1, simplifying the force transmission path of the anchoring system.
[0028] In the present application, one end of the steel anchor beam 3 connected to the corbel 2 is designed to be movably connected, so an end plate 301 is provided at the end of the steel anchor beam 3 close to the corbel 2, and the end plate 301 can reinforce the steel anchor beam 3 and improve the stability of the steel anchor beam 3.
[0029] Although, in other embodiments, the connection method between the steel anchor beam 3 and the corbel 2 includes an automatic sliding type, a free sliding type in which the steel anchor beam 3 is placed on the corbel 2, and longitudinal and transverse bridge limit devices are set at both ends. This connection method enables the steel anchor beam 3 to withstand most of the horizontal components generated by the constant load and operating load, and improves the stress state of the concrete tower wall. However, extreme working conditions such as cable breakage may cause the position of the steel anchor beam 3 to be out of control.
[0030] Or it may include a sliding-then-locking type: during the construction process, one end of the steel anchor beam 3 is locked with the corbel 2, and after the inclined cable is tensioned to the specified cable force, the steel anchor beam 3 on the other side is locked with the corbel 2. During the construction process, the steel anchor beam 3 bears the horizontal component of the inclined cable alone, and during the operation stage, the steel anchor beam 3 and the tower wall of the cable tower 1 jointly bear the horizontal component of the inclined cable. This connection method increases the reliability of the connection of the components in the anchoring area. However, the tower wall bears a large horizontal component of force during operation, and the tower walls on both sides still need to be equipped with stronger steel bars.
[0031] And also includes constrained sliding type: this type of steel anchor beam 3 has a limiting mechanism set between the corbel 2 and the anchor beam, allowing the steel anchor beam 3 to move on the corbel 2 along the longitudinal direction of the bridge, which can eliminate the secondary internal force caused by the system temperature and the shrinkage creep of the concrete tower wall. However, under the action of the cable-breaking condition, the concrete tower walls on the side span side and the middle span side may be subjected to the cable-breaking force. In order to ensure the structural safety under the cable-breaking condition, the tower walls on both sides still need to be equipped with strong steel bars to resist the cable-breaking force, thereby reducing the economy of the structure.
[0032] In the present application, one end of the steel anchor beam 3 is set as a movable end, and the other end is set as a fixed end. No matter in the cable-breaking condition or the operation stage, the load is borne by the tower wall on the fixed end side of the steel anchor beam 3. Therefore, it is only necessary to strengthen the tower wall at the fixed end of the steel anchor beam 3, while the tower wall at the movable end of the steel anchor beam 3 hardly bears the longitudinal horizontal component of the inclined cable no matter in the operation condition or the cable-breaking condition, thereby significantly reducing the amount of stirrups used and reducing the difficulty of tower wall construction, thereby ensuring the construction quality and having good economic benefits.
[0033] In the present application, the corbel 2 is composed of a top plate 20, a side plate 21 and a bottom plate 22. The side plate 21 is connected between the top plate 20 and the bottom plate 22. The top plate 20, the side plate 21 and the bottom plate 22 together constitute the main structure of the corbel 2. The connection between them ensures the overall stability and bearing capacity of the corbel 2. A first stiffening rib 23 is also provided on the side plate 21, which can significantly improve the bending resistance and shear resistance of the side plate 21. Then, a sliding groove 40 is provided on the corbel 2, specifically on the top plate 20. A sliding sheet 41 is connected in the sliding groove 40. One end of the steel anchor beam 3 is placed on the sliding sheet 41. The sliding sheet 41 consists of a two-layer structure. The structure at the bottom layer is made of a material including but not limited to stainless steel, and has a low friction coefficient to prevent the sliding sheet 41 from sliding out of the sliding groove 40. The upper structure is made of a material with a low friction coefficient, so that the steel anchor beam 3 has a better mobility on the sliding sheet 41. Therefore, under the action of the sliding sheet 41, the steel anchor beam 3 can be effectively moved on the corbel 2, and the wear caused by the direct contact between the steel anchor beam 3 and the corbel 2 is avoided. The horizontal load in the transverse direction of the bridge generated by the corbel 2 can be transmitted to the tower wall of the cable tower 1 through the top plate 20, realizing the function of restraining the transverse deformation of the steel anchor beam 3. When the steel anchor beam 3 moves upward on one side of the longitudinal bridge due to extreme working conditions such as cable breakage, the top plate 20 can effectively restrain the steel anchor beam 3 from deforming upward and prevent the steel anchor beam 3 from rotating.
[0034] In the present application, when the steel anchor beam 3 is displaced upward on one side in the longitudinal direction due to extreme working conditions such as cable breakage, the top plate 20 can effectively constrain the steel anchor beam 3 from deforming upward and prevent the steel anchor beam 3 from rotating. Therefore, in order to avoid the steel anchor beam 3 not resisting the tower wall of the cable tower 1 under all loads, thereby avoiding the tower wall of the cable tower 1 from bearing the horizontal component force generated by the cable-stayed bridge in the longitudinal direction, a deformation space 10 is provided between the corbel 2 and the tower wall of the cable tower 1. The size of the deformation space 10 in the longitudinal direction is greater than the sum of the longitudinal deformations of the steel anchor beam 3 under all possible loads such as dead load, shrinkage creep, live load, temperature, and cable breakage. In the present application, an installation space 30 is also provided between the corbel 2 and the steel anchor beam 3. When the sliding sheet 41 needs to be replaced, the top plate 20 of the corbel 2 and the top plate 20 of the steel anchor beam 3 can be used as fulcrums for tools including but not limited to jacks. The installation space 30 is used to place the jack, which greatly improves the convenience of the later maintenance and repair of the steel anchor beam 3.
[0035] In the present application, anchoring assemblies are arranged on the tower walls on both sides of the cable tower 1, wherein the anchoring assemblies on one side are used to fix the corbel 2 on the cable tower 1, and the anchoring assemblies on the other side are used to fix the steel anchor beam 3 on the cable tower 1. The arrangement of the anchoring assemblies enables the corbel 2 and the steel anchor beam 3 to be independently fixed and adjusted on the cable tower 1. This design not only simplifies the structure, but also improves the flexibility and adaptability of the anchoring system. The corbel 2 at one end of the traditional steel anchor beam 3 is eliminated, and the steel anchor beam 3 can be extended into the tower wall for anchoring through the anchoring assemblies, directly transferring the load of the steel anchor beam 3 to the tower wall, simplifying the force transmission path of the anchoring system, reducing the processing difficulty of the anchoring system, reducing the amount of steel used, and having good economic benefits.
[0036] In the present application, the anchoring assembly provided includes: a first anchor plate 50 and a first shear key 51. The first anchor plate 50 is buried in the tower walls on both sides of the cable tower 1, and the first anchor plate 50 on one side is welded and fixed to the corbel 2, and the first anchor plate 50 on the other side is welded and fixed to the steel anchor beam 3; the first shear key 51 is buried in the cable tower 1 and fixed to the first anchor plate 50. The first shear key 51 includes but is not limited to the shear nail setting. The first anchor plate 50 is buried in the tower walls on both sides of the cable tower 1 as the basis for connecting the corbel 2 and the steel anchor beam 3, and is welded and fixed. The first anchor plate 50 can ensure that the connection between the corbel 2 and the steel anchor beam 3 and the cable tower 1 is firm and reliable and not easy to loosen. When in use, the first anchor plate 50 can withstand the load from the corbel 2 and the steel anchor beam 3, and effectively transfer it to the tower wall of the cable tower 1, which helps to reduce local stress concentration and improve the bearing capacity of the entire structure. The first shear key 51 is buried in the cable tower 1 and fixed to the first anchor plate 50, which can effectively resist the shear force from the corbel 2 and the steel anchor beam 3 and prevent shear failure of the structure when subjected to force. Through the joint action of the first anchor plate 50 and the first shear key 51, the safety and reliability of the entire structure can be significantly improved.
[0037] In the present application, a reinforcement component is further provided on the first anchor plate 50, and at least one group of reinforcement components is provided on the first anchor plate 50 fixed to the corbel 2 on one side, and at least two groups of reinforcement components are provided on the first anchor plate 50 fixed to the steel anchor beam 3 on the other side. The addition of the reinforcement component significantly enhances the bearing capacity of the first anchor plate 50, making the connection between the corbel 2 and the steel anchor beam 3 and the cable tower 1 more stable and reliable. Especially under extreme working conditions, the reinforcement component can ensure the reliability and safety of the connection. And because the tower wall at the movable end of the steel anchor beam 3 hardly bears the longitudinal horizontal component of the inclined cable in either the operating condition or the cable-broken condition, the amount of stirrups used is significantly reduced, and the difficulty of tower wall construction is reduced, thereby ensuring the construction quality and having good economic benefits; and the tower wall at the fixed end of the steel anchor beam 3 bears the main load, so the vertical reinforcement component is added on this side to strengthen the tower wall at the fixed end of the steel anchor beam 3, simplifying the anchoring structure, reducing the processing difficulty of the anchoring system, reducing the amount of steel used, and having good economic benefits.
[0038] Each set of reinforcement components includes: a second anchor plate 60 and a second shear key 61, wherein the second anchor plate 60 is buried in the cable tower 1 and fixed to the first anchor plate 50; the second shear key 61 is buried in the cable tower 1 and fixed to the second anchor plate 60. The addition of the second anchor plate 60 and the second shear key 61 provides additional connection points for the cable tower 1 structure, which help to disperse and transfer loads, thereby enhancing the stability of the structure.
[0039] In the case of a broken cable, the anchoring assembly and the reinforcement assembly work together to constrain the possible upward vertical displacement of the steel anchor beam 3, prevent the steel anchor beam 3 from rotating, and ensure the stability of the steel anchor beam 3 in the broken cable condition.
[0040] In the present application, a plurality of second stiffening ribs 300 are connected to the webs on both sides of the steel anchor beam 3. The second stiffening ribs 300 are a kind of strip reinforcement. By adding transverse or longitudinal ribs to the steel anchor beam 3, its cross-sectional area and rigidity can be significantly increased, thereby improving the stability and bearing capacity of the steel anchor beam 3. This helps to prevent the steel anchor beam 3 from becoming unstable when subjected to external forces, and ensures the overall safety of the structure.
[0041] In the present application, a cable anchoring assembly is also provided at both ends of the steel anchor beam 3, and the cable anchoring assembly includes: a first support plate 70, a stiffening plate 71 and an anchor pad 72, the first support plate 70 is connected to the web of the steel anchor beam 3 on both sides; the stiffening plate 71 is fixed to the first support plate 70 on both sides; the anchor pad 72 is connected between the first support plate 70 and the stiffening plate 71, and extends away from the bottom surface of the first support plate 70 of the corbel 2 to be fixed on the first anchor plate 50. The addition of the cable anchoring assembly, especially the combined use of the first support plate 70, the stiffening plate 71 and the anchor pad 72, significantly enhances the rigidity of the steel anchor beam 3 and the connection area with the cable tower 1. This helps to resist deformation caused by external loads and improve the stability of the overall structure. The bottom surface of a first support plate 70 away from the corbel 2 extends to the first anchor plate 50 and is fixed thereon, so that the cable force of the inclined cable can be directly transmitted to the first anchor plate 50 through the first support plate 70, and then transmitted to the tower wall of the cable tower 1, thereby simplifying the force transmission path of the steel anchor beam 3 and having good economic benefits.
[0042] In addition, in order to strengthen the strength of the end of the steel anchor beam 3 fixed to the tower wall of the cable tower 1, a second support plate 73 is also provided at the end of the steel anchor beam 3 away from the corbel 2, and both sides of the second support plate 73 are connected to the web of the steel anchor beam 3, and the bottom surface of the second support plate 73 extends to the first anchor plate 50 and is fixed.
[0043] In the cable-breaking condition, when the inclined cable on one side of the longitudinal bridge breaks, the inclined cable on one side of the longitudinal bridge will transfer the cable force to the first anchor plate 50 on the side away from the corbel 2 through the first support plate 70 and the second support plate 73, and then transfer the cable force to the tower wall of the cable tower 1; when the inclined cable on the other side of the longitudinal bridge breaks, the inclined cable on the other side of the longitudinal bridge will transfer the cable force to the steel anchor beam 3 through the first support plate 70, and further transfer the cable force to the first anchor plate 50 on the side away from the corbel 2, and finally transfer the cable force to the tower wall of the cable tower 1. Therefore, no matter which side has the cable-breaking condition, the cable-breaking force will not act on the tower wall of the cable tower 1 on the side of the corbel 2, but only on the tower wall of the cable tower 1 fixed to the steel anchor beam 3. When designing the tower wall, it is only necessary to consider the cable-breaking condition for the tower wall of the cable tower 1 at the fixed end of the steel anchor beam 3, which simplifies the steel bar arrangement of the tower wall of the cable tower 1.
[0044] In the present application, a steel bar hole 8 and a vent hole 9 are also provided on the first anchor plate 50 and the second anchor plate 60. The steel bar hole 8 is used to pass the steel bar to firmly connect the first anchor plate 50 and the second anchor plate 60 to the concrete structure of the cable tower 1. This connection method can not only ensure the continuity of the steel bar, but also ensure that the tension of the inclined cable can be evenly transmitted to the concrete structure of the cable tower 1, thereby improving the reliability of the anchoring of the first anchor plate 50 and the second anchor plate 60. The vent hole 9 can discharge the gas in the concrete and prevent the gas from accumulating in the lower part of the embedded part to form a cavity. This helps to ensure the compactness and integrity of the concrete and improve the bonding strength between the first anchor plate 50 and the second anchor plate 60 and the concrete.
[0045] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0046] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0047] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. An asymmetrically arranged steel structure cable tower anchoring system, characterized in that: include: A cable tower (1), which is arranged in plurality along the longitudinal direction of the bridge and has two tower walls arranged opposite to each other; A corbel (2) is installed on the tower wall on any side and is arranged in plurality along the height direction of the cable tower (1); A steel anchor beam (3) has one end movably connected to the corbel (2) and the other end fixedly connected to the tower wall of the cable tower (1).
2. The asymmetrically arranged steel structure cable tower anchoring system according to claim 1, characterized in that: The corbel (2) is provided with a sliding groove (40), a sliding sheet (41) is connected inside the sliding groove (40), and one end of the steel anchor beam (3) is placed on the sliding sheet (41).
3. The asymmetrically arranged steel structure cable tower anchoring system according to claim 1, characterized in that: Anchoring assemblies are provided on the tower walls on both sides of the cable tower (1), wherein the anchoring assembly on one side is used to fix the corbel (2) on the cable tower (1), and the anchoring assembly on the other side is used to fix the steel anchor beam (3) on the cable tower (1).
4. The asymmetrically arranged steel structure cable tower anchoring system according to claim 3, characterized in that: The anchor assembly comprises: A first anchor plate (50) is embedded in the tower walls on both sides of the cable tower (1), wherein the first anchor plate (50) on one side is fixed to the corbel (2), and the first anchor plate (50) on the other side is fixed to the steel anchor beam (3); A first shear key (51) is embedded in the cable tower (1) and fixed to the first anchor plate (50).
5. The asymmetrically arranged steel structure cable tower anchoring system according to claim 4, characterized in that: The first anchor plate (50) is also provided with a reinforcement component, and the first anchor plate (50) fixed to the corbel (2) on one side is provided with at least one group of the reinforcement components, and the first anchor plate (50) fixed to the anchor beam on the other side is provided with at least two groups of the reinforcement components.
6. The asymmetrically arranged steel structure cable tower anchoring system according to claim 5, characterized in that: Each set of reinforcement components includes: A second anchor plate (60) is buried in the cable tower (1) and fixed to the first anchor plate (50); A second shear key (61) is embedded in the cable tower (1) and fixed to the second anchor plate (60).
7. The asymmetrically arranged steel structure cable tower anchoring system according to claim 1, characterized in that: Both ends of the steel anchor beam (3) are provided with cable anchoring assemblies, and the cable anchoring assemblies include: A first support plate (70), two sides of which are connected to the web of the steel anchor beam (3); A stiffening plate (71), two sides of which are fixed to the first supporting plate (70); An anchor plate (72) connected between the first support plate (70) and the stiffening plate (71); And the bottom surface of the first supporting plate (70) away from the corbel (2) extends to be fixed on the first anchor plate (50).
8. The asymmetrically arranged steel structure cable tower anchoring system according to claim 7, characterized in that: A second support plate (73) is also provided at one end of the steel anchor beam (3) away from the corbel (2); two sides of the second support plate (73) are connected to the web of the steel anchor beam (3), and the bottom surface of the second support plate (73) extends to be fixed on the first anchor plate (50).
9. The asymmetrically arranged steel structure cable tower anchoring system according to claim 1, characterized in that: An installation space (30) is provided between the corbel (2) and the steel anchor beam (3).
10. The asymmetrically arranged steel structure cable tower anchoring system according to claim 1, characterized in that: A deformation space (10) is provided between the corbel (2) and the tower wall of the cable tower (1).
Citation Information
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