Splicing type steel anchor beam structure

Abstract

The utility model provides a splicing type steel anchor beam structure which comprises a bottom plate, the upper end of the bottom plate is detachably connected with two web plates which are oppositely arranged upwards, the upper end of the bottom plate is connected with a middle supporting frame between the two web plates, and sliding supporting plates are arranged at the two ends of the middle supporting frame outwards and downwards and correspond to the lower portions of mounting plates. A steel cable connector is arranged at the upper end of the sliding supporting plate and comprises a connecting end plate and a plurality of limiting plates distributed in the length direction of the corresponding sliding supporting plate, rubber cushion layers are connected between every two limiting plates and between the limiting plates and the connecting end plate, and the connecting end plate is downwards obliquely connected to the end of the upper side of the bottom plate. A second horizontal connecting plate detachably connected with the bottom plate is arranged on the lower edge of the connecting end plate, and a steel cable penetrating hole penetrating through the steel cable connector is formed along the corresponding sliding supporting plate. According to the utility model, the energy-dissipation and vibration-reduction structure is additionally arranged, so that the bearing capacity of the energy-dissipation and vibration-reduction structure on cyclic stress is increased, and the spliced design is adopted, so that the overall precision and strength are improved, and the transportation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field, especially a spliced steel anchor beam structure. BACKGROUND

[0002] With the development of modern bridge engineering technology, the stability, durability and construction convenience of bridge structure are increasingly improved. Bridge anchoring system as an important part to ensure the stability of the bridge plays an indispensable role in bridge construction. Traditional bridge anchoring technology mostly relies on concrete structure, but with the continuous increase of bridge span and the improvement of bearing capacity requirements, the concrete structure gradually shows its limitations, especially in the application scene of high strength and large span bridge.

[0003] Steel anchor beam as an advanced bridge anchoring solution emerges as the times require. Compared with traditional concrete structure, steel anchor beam is widely used for its higher strength weight ratio, better tensile performance and faster construction speed. Steel anchor beam not only can effectively reduce the weight of the bridge, but also can provide reliable anchoring support under complex geological conditions, significantly improving the safety and service life of the bridge. In addition, the design flexibility of steel anchor beam also provides more possibilities for bridge construction in complex terrain.

[0004] However, most of the steel anchor beams on the market still adopt rigid structure design, which can meet the bearing demand of the bridge to a certain extent, but due to long-term bearing of vehicle dynamic load, wind load and other cyclic stress, fatigue cracks are easy to occur at the anchoring node, which seriously affects the overall service life of the bridge. At the same time, most of the steel anchor beams adopt integral welding structure, which brings additional challenges in the process of modular assembly: the welding heat affected zone may cause local deformation, affecting the accuracy and strength of the overall structure; and the integral steel anchor beam is large in size and not easy to transport, increasing the difficulty and cost of on-site installation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a spliced steel anchor beam structure, which increases the energy dissipation and vibration reduction structure to increase its bearing capacity of cyclic stress, and adopts spliced design to improve the overall accuracy and strength, and is more convenient for transportation.

[0006] The utility model provides a spliced steel anchor beam structure, including the bottom plate, the upper end of bottom plate is detachably connected with two oppositely arranged webs upwards, the upper edge of each web is formed the mounting plate which is inclined upwards and outwards, the lower edge of each web is provided with the first horizontal connecting plate which is detachably connected with the upper end of bottom plate outward, the upper end of bottom plate is connected with the middle support frame between two webs, the both ends of middle support frame are provided with the sliding support plate which is outward and downward under the corresponding mounting plate, the upper end of each sliding support plate is provided with the cable connector, each cable connector includes the connecting end plate, a plurality of limit plates which are distributed along the length direction of corresponding sliding support plate, the rubber pad layer is connected between every two limit plates and between limit plate and connecting end plate, the lower edge of each connecting end plate is provided with the second horizontal connecting plate which is detachably connected with bottom plate, the lower edge of each limit plate is slidably connected with corresponding sliding support plate, the both edges of each limit plate are slidably connected with corresponding mounting plate, the cable through -hole is formed in each cable connector along corresponding sliding support plate.

[0007] Through the above technical scheme, when the vehicle dynamic load, wind load and other cyclic stress make the cable sway or swing, the strong tension force makes the cable pull the cable connector, the connecting end plate blocks, the limit plate compresses the rubber pad layer to deform and form strong damping to consume energy, consume the energy of cable swing to prevent the vibration energy from causing fatigue cracks at the anchorage node to prolong the overall service life of the bridge.

[0008] The utility model further sets up that each first horizontal connecting plate is provided with a plurality of first installation hole, the upper end of bottom plate is provided with a plurality of first connecting bolts which correspond to each horizontal connecting plate upper first installation hole one to one.

[0009] The utility model further sets up that each second horizontal connecting plate is provided with a plurality of second installation hole, the both ends of bottom plate upside are provided with a plurality of second connecting bolts which correspond to each second horizontal connecting plate second installation hole one to one.

[0010] The utility model further sets up that the middle support frame includes the horizontal support plate located bottom plate top, the vertical connecting plate which is set down and detachably connected with corresponding web on the both edges of horizontal support plate, the cross partition plate connected between two vertical connecting plates.

[0011] The utility model further sets up that the middle segment of each web is provided with a plurality of third installation hole, and each vertical connecting plate is provided with a plurality of third connecting bolts which correspond to corresponding third installation hole one to one outward.

[0012] The utility model further sets up, both ends of bottom plate upside are connected with end seal plate, both sides of each end seal plate are connected with the edge of corresponding web, each end seal plate is all set up with the through hole that cooperates with corresponding steel cable perforation, each end seal plate is all set up with the anchor pipe that sets along corresponding steel cable perforation length direction outward at corresponding through hole.

[0013] The utility model further sets up, the upper portion of each installation board is all set up with the limit slide bar that slides along corresponding sliding support plate direction and is connected with corresponding steel cable connector slidingly.

[0014] The utility model further sets up, the outside of each web is all set up with a plurality of first stiffener.

[0015] The utility model further sets up, each second horizontal connecting plate and corresponding connecting end plate are all connected with a plurality of second stiffener.

[0016] Compared with prior art, the utility model has the following beneficial effects:

[0017] First, the utility model increases steel cable connector on steel anchor beam, vulcanizes and connects multilayer rubber pad layer between them, when the vibration or swing of cable-stayed steel cable is produced under the cyclic stress effect of vehicle dynamic load, wind load etc., rubber pad layer can effectively consume the energy of cable-stayed steel cable vibration or swing, prevents the fatigue crack at anchorage node from producing by vibration energy, to prolong the overall service life of bridge;

[0018] Second, the steel anchor beam of the utility model adopts splicing design, is connected through bolt, is convenient for on -the -spot assembly, avoids the local deformation caused by welding heat affected zone, to improve the precision and strength of overall structure, and the design of splicing makes steel anchor beam can be disassembled and transported, compared with the transportation of overall structure is more flexible and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the utility model's explosion map;

[0021] Figure 3 It is the overall structure schematic of web;

[0022] Figure 4 It is the overall structure schematic diagram of middle support frame;

[0023] Figure 5 It is the overall structure schematic diagram of steel cable connector.

[0024] Wherein, 1, bottom plate; 2, web; 3, first stiffener; 4, mounting plate; 5, first horizontal connecting plate; 6, first mounting hole; 7, first connecting bolt; 8, horizontal support plate; 9, vertical connecting plate; 10, transverse bulkhead; 11, third mounting hole; 12, third connecting bolt; 13, sliding support plate; 14, connecting end plate; 15, limiting plate; 16, rubber cushion layer; 17, second horizontal connecting plate; 18, second stiffener; 19, second mounting hole; 20, second connecting bolt; 21, cable through hole; 22, limiting sliding bar; 23, end sealing plate; 24, anchor pipe. DETAILED DESCRIPTION

[0025] The utility model will be described in further detail below with reference to the drawings.

[0026] In the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the utility model, it is also necessary to point out that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Embodiment, refer to Figures 1-5The utility model provides a spliced steel anchor beam structure, including the bottom plate 1, the upper end of bottom plate 1 is detachably connected with two opposite web plates 2 upwards, the outer side of each web plate 2 is provided with a plurality of first stiffeners 3, the upper edge of each web plate 2 is formed with an installation plate 4 upwards and outwardly inclined, the lower edge of each web plate 2 is provided with a first horizontal connecting plate 5 outwardly detachably connected with the upper end of bottom plate 1, each first horizontal connecting plate 5 is provided with a plurality of first mounting holes 6, the upper end of bottom plate 1 is provided with a plurality of first connecting bolts 7 corresponding to each first mounting hole 6 of horizontal connecting plate, by first connecting bolt 7 through first mounting hole 6, the web plate 2 can be connected with bottom plate 1.

[0030] The upper end of bottom plate 1 is connected with a middle support frame between two web plates 2, the middle support frame includes a horizontal support plate 8 above bottom plate 1, vertical connecting plates 9 downwardly arranged on both sides of horizontal support plate 8 and detachably connected with corresponding web plates 2, a transverse partition plate 10 vertically arranged and connected between two vertical connecting plates 9, the middle segment of each web plate 2 is provided with a plurality of third mounting holes 11, each vertical connecting plate 9 is provided with a plurality of third connecting bolts 12 outwardly corresponding to corresponding third mounting holes 11, by third connecting bolt 12 through third mounting hole 11, the middle support frame can be connected with web plate 2, both ends of middle support frame are provided with a sliding support plate 13 outwardly and downwardly below corresponding installation plate 4.

[0031] The upper end of each sliding support plate 13 is provided with an inclined steel cable connector, each steel cable connector includes an inclined connecting end plate 14, a plurality of limiting plates 15 distributed along the length direction of corresponding sliding support plate 13, a side rubber pad layer 16 is connected between every two limiting plates 15 and between limiting plate 15 and connecting end plate 14, the cross section of rubber pad layer 16 is smaller than the cross section of limiting plate 15, rubber pad layer 16 and limiting plate 15 are vulcanized together, the two sides of limiting plate 15 can contact and slidingly connect with installation plate 4, each connecting end plate 14 is downwardly and obliquely connected to the end of the upper side of bottom plate 1, the lower edge of each connecting end plate 14 is provided with a second horizontal connecting plate 17 detachably connected with bottom plate 1, a plurality of second stiffeners 18 are connected between each second horizontal connecting plate 17 and corresponding connecting end plate 14, each second horizontal connecting plate 17 is provided with a plurality of second mounting holes 19, the two ends of the upper side of bottom plate 1 are provided with a plurality of second connecting bolts 20 corresponding to each second mounting hole 19 of each second horizontal connecting plate 17, the lower edge of each limiting plate 15 is slidingly connected with corresponding sliding support plate 13, the two sides of each limiting plate 15 are slidingly connected with corresponding installation plate 4, a steel cable through hole 21 is arranged through each steel cable connector along corresponding sliding support plate 13.

[0032] The upper part of each installation plate 4 is provided with a limiting slide strip 22 inclined to the corresponding sliding support plate 13 and slidingly connected with the corresponding cable connector, and the two limiting slide strips 22 cooperate to prevent the cable connector from falling out.

[0033] Installation method: when assembling on site, the base plate 1 is prepared and positioned on the base plate 1, the web plates 2 are placed on both sides of the middle support frame, the third connecting bolts 12 are passed through the third installation holes 11, the middle support frame and the web plates 2 are connected with the base plate 1, the first connecting bolts 7 are passed through the first installation holes 6, the cable connectors are placed between the two installation plates 4, the upper end of the sliding support plate 13, and the second connecting bolts 20 are passed through the second installation holes 19, and all the bolts are fastened and fixed with nuts, the end sealing plates 23 are welded on both ends, the cable-stayed cables are passed through the cable perforations 21 and the anchor pipes 24, the cable-stayed cables are fixed at the upper end of the cable perforations 21 so as not to pass through the cable perforations 21 downward, and the connection with the cable-stayed cables is completed.

[0034] Working principle: when the cable-stayed cables vibrate or swing under the action of the cyclic stress of the vehicle dynamic load, wind load and the like, the strong tension of the cable-stayed cables pulls the cable connector, the blocking of the connecting end plate 14, the compression of the rubber pad layer 16 by the limiting plate 15 to deform and form strong damping, energy dissipation, consumption of the energy of the vibration or swing of the cable-stayed cables, prevention of the vibration energy from causing fatigue cracks at the anchoring node, and prolongation of the overall service life of the bridge.

[0035] The embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, and the modifications are protected by the patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A spliced ​​steel anchor beam structure, comprising a base plate (1), characterized in that, The upper end of the base plate (1) is detachably connected to two opposing web plates (2). The two ends of the upper side of each web plate (2) are inclined upward and outward to form a mounting plate (4). The two ends of the lower side of each web plate (2) are provided with a first horizontal connecting plate (5) detachably connected to the upper end of the base plate (1). The upper end of the base plate (1) is connected to a middle support frame between the two web plates (2). The two ends of the middle support frame are provided with sliding support plates (13) below the corresponding mounting plates (4) and outward and downward. The upper end of each sliding support plate (13) is provided with a steel cable connector. Each steel cable connector includes a connecting end plate (14) and multiple pieces along the corresponding sliding support. Limiting plates (15) are distributed along the length of the support plate (13). Rubber pads (16) are connected between every two limiting plates (15) and between the limiting plates (15) and the connecting end plates (14). Each connecting end plate (14) is inclined downward and connected to the upper end of the base plate (1). A second horizontal connecting plate (17) is provided on the lower side of each connecting end plate (1) and is detachably connected to the base plate (1). The lower side of each limiting plate (15) is slidably connected to the corresponding sliding support plate (13). Both sides of each limiting plate (15) are slidably connected to the corresponding mounting plate (4). A steel cable through hole (21) is provided along the corresponding sliding support plate (13) and passes through each steel cable connector.

2. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, Each first horizontal connecting plate (5) is provided with multiple first mounting holes (6), and the upper end of the base plate (1) is provided with multiple first connecting bolts (7) that correspond one-to-one with the first mounting holes (6) on each horizontal connecting plate.

3. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, Each second horizontal connecting plate (17) is provided with multiple second mounting holes (19), and multiple second connecting bolts (20) corresponding one-to-one with the second mounting holes (19) on each second horizontal connecting plate (17) are provided at both ends of the upper side of the base plate (1).

4. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, The central support frame includes a horizontal support plate (8) located above the base plate (1), vertical connecting plates (9) arranged downward on both sides of the horizontal support plate (8) and detachably connected to the corresponding web plate (2), and a transverse partition (10) connecting the two vertical connecting plates (9).

5. A spliced ​​steel anchor beam structure according to claim 4, characterized in that, Each web plate (2) has multiple third mounting holes (11) in the middle section, and each vertical connecting plate (9) has multiple third connecting bolts (12) that correspond one-to-one with the corresponding third mounting holes (11).

6. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, Both ends of the upper side of the base plate (1) are connected to end sealing plates (23). Both sides of each end sealing plate (23) are connected to the edge of the corresponding web plate (2). Each end sealing plate (23) has a through hole that matches the corresponding steel cable through hole (21). Each end sealing plate (23) has an anchor pipe (24) set outward from the corresponding through hole along the length direction of the corresponding steel cable through hole (21).

7. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, Each mounting plate (4) has an inwardly inclined limiting slide (22) on its upper part that is inclined along the direction of the corresponding sliding support plate (13) and slidably connected to the corresponding steel cable connector.

8. The spliced ​​steel anchor beam structure according to claim 1, characterized in that, Multiple first stiffening strips (3) are provided on the outer side of each web plate (2).

9. A spliced ​​steel anchor beam structure according to claim 1, characterized in that, Each second horizontal connecting plate (17) is connected to a corresponding connecting end plate (14) by multiple second stiffening strips (18).

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