Combined steel anchor beam

Abstract

The utility model discloses a combined type steel anchor beam, which belongs to the technical field of bridge construction and comprises a steel anchor beam, a steel corbel and a cable sleeve, the steel anchor beam comprises a main body structure and anchor boxes, the main body structure is in a frame shape with an opening on the upper side, the anchor boxes are arranged at two ends in the main body structure, and cable sleeve connecting holes are arranged in the anchor boxes; the steel corbels are arranged on the two sides of the main body structure, and rope sling connecting holes are formed in the steel corbels. And the cable sleeve penetrates through the cable sleeve connecting holes in the steel corbel bottom plate and the anchor box. The steel anchor beam is convenient to install and high in connection strength, the structural strength and the bearing capacity of the steel anchor beam are improved, and the problem of deformation of the sleeve caused by mass welding is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a combined steel anchor beam. Background Art

[0002] With the development of economy, bridges are also developing continuously. The span of cable-stayed bridges is constantly increasing and the performance of bridge steel is getting higher and higher. The cable anchoring section of the cable tower is an important force-bearing structure that safely and evenly transfers the local concentrated stress of a cable to the tower column. For large-span cable-stayed bridges, there are three main anchoring methods: hoop stress anchoring, steel anchor box anchoring and steel anchor beam anchoring. At present, steel anchor beams are increasingly used in cable-stayed bridges, so the production technology and construction technology requirements of steel anchor beams are getting higher and higher.

[0003] The existing steel anchor beam installation process is cumbersome. Since a large number of steel anchor beams are required, the construction efficiency is affected. Most steel anchor beams require a large amount of welding to achieve the connection effect, but it is also easy to cause deformation of the sleeve. In addition, during the construction of large bridges, the steel anchor beams are required to achieve sufficient connection strength to ensure the structural stability of the bridge. Utility Model Content

[0004] The utility model aims to provide a combined steel anchor beam to solve the problems of complex installation and connection of the steel anchor beam and low connection strength.

[0005] Technical solution: The utility model provides a combined steel anchor beam, comprising: a steel anchor beam, a steel corbel, and a cable sleeve. The steel anchor beam comprises: a main structure and an anchor box. The main structure is a frame-shaped frame with an upper opening. The anchor boxes are arranged at both ends inside the main structure, and there are cable sleeve connecting holes in the anchor boxes. The steel corbel comprises: a steel corbel bottom plate, a shear plate, a limit plate, a bolt, a T-shaped supporting plate, a vertical connecting plate, and a matching piece. A cable sleeve connecting hole is arranged in the middle of the steel corbel bottom plate. The shear plate is symmetrically arranged above the steel corbel bottom plate. The limit plate is arranged at both ends of the steel corbel bottom plate between the shear plates. The bolt is evenly arranged on the steel corbel bottom plate. The T-shaped supporting plate is symmetrically arranged below the steel corbel bottom plate. The vertical connecting plate is arranged below the steel corbel bottom plate, and one end is connected to the T-shaped supporting plate. The matching piece is arranged at the limit plate, and is welded to the steel corbel bottom plate, the limit plate, the T-shaped supporting plate, and the vertical connecting plate. A matching piece stiffening plate is arranged inside the matching piece; the cable sleeve is arranged through the cable sleeve connecting hole on the steel corbel bottom plate and the anchor box.

[0006] Furthermore, in the above-mentioned combined steel anchor beam, the shear plate, T-shaped support plate and vertical connection plate are welded with the steel corbel bottom plate by full penetration welding, so that the steel anchor beam has high structural strength, strong stability and improved bearing capacity.

[0007] Furthermore, in the above-mentioned combined steel anchor beam, the anchor boxes are symmetrically arranged, and the cable sleeve connection holes are inclined to both sides at both ends of the main structure.

[0008] Furthermore, in the above-mentioned combined steel anchor beam, the anchor box includes: an anchor plate, a closing plate, a main support plate, a secondary support plate, and an anchor box stiffening plate. A main support plate is arranged between the anchor plate and the closing plate to connect the main support plate. The secondary support plate is arranged between the main support plates and is connected to the anchor plate and the closing plate. There are several anchor box stiffening plates, which are arranged on the outside of the main support plate.

[0009] Furthermore, in the above-mentioned combined steel anchor beam, the main structure includes: a panel, a web, a main stiffening plate, and a top plate, the web is arranged on both sides above the panel, and the web is connected to the main support plate by full penetration welding, the top plate is arranged on the outer side of the web at one end away from the panel, the main stiffening plate is arranged on the outer side of the web, and the two ends are connected to the panel and the top plate.

[0010] Furthermore, in the above-mentioned combined steel anchor beam, the limiting plate is provided with a plurality of limiting plate reinforcement holes, and the shear plate is evenly provided with a plurality of shear plate reinforcement holes.

[0011] Furthermore, in the above-mentioned combined steel anchor beam, the web is provided with a plurality of bolt connection holes at both ends.

[0012] Furthermore, in the above-mentioned combined steel anchor beam, the vertical connection plate is provided with a plurality of holes matching the bolt connection holes at both ends of the web, and is connected by using large hexagonal high-strength bolts. The splicing bridge design is convenient for installation, and the use of large hexagonal high-strength bolts to connect improves the connection strength.

[0013] Furthermore, in the above-mentioned combined steel anchor beam, the closing plate has a hole in the middle, and the cable sleeve passes through the hole of the closing plate and is welded and sealed with the closing plate, so that the inside of the anchor box is airtight and meets the airtightness and anti-corrosion requirements.

[0014] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the combined steel anchor beam described in the utility model has high structural strength, the steel corbel and the steel anchor beam are connected by a butt-jointed connection, connected by large hexagonal high-strength bolts, the component plates are welded together, and different welding methods are used for different stress nodes to ensure the overall structural strength, improve the bearing capacity of the steel anchor beam, facilitate installation, improve construction efficiency, and avoid the deformation problem of the sleeve caused by a large amount of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a combined steel anchor beam structure of the utility model;

[0016] Figure 2 This is a schematic diagram of one side of the steel bracket of the utility model;

[0017] Figure 3 This is a schematic diagram of the other side of the steel bracket of the utility model

[0018] Figure 4 It is a schematic diagram of the anchor box of the utility model.

[0019] In the figure: steel anchor beam 1, steel corbel 2, cable sleeve 3, main structure 11, anchor box 12, steel corbel bottom plate 21, shear plate 22, limit plate 23, bolt 24, T-shaped supporting plate 25, vertical connecting plate 26, matching piece 27, matching piece stiffening plate 28, panel 111, web 112, main body stiffening plate 113, top plate 114, anchor pad 121, closing plate 122, main support plate 123, secondary support plate 124, anchor box stiffening plate 125. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figure 1 A combined steel anchor beam shown includes: a steel anchor beam 1, a steel corbel 2, and a cable sleeve 3. The steel anchor beam 1 includes: a main structure 11 and an anchor box 12. The main structure 11 is a frame-shaped structure with an upper opening. The anchor box 12 is arranged at both ends of the main structure 11, and there are cable sleeve connecting holes in the anchor box 12. The steel corbel 2 is arranged at both ends of the main structure 11. The cable sleeve 3 is arranged through the cable sleeve connecting holes on the steel corbel and the anchor box 12.

[0022] like Figure 2-3 A combined steel anchor beam is shown, the steel corbel 2 comprises: a steel corbel bottom plate 21, a shear plate 22, a limit plate 23, a bolt 24, a T-shaped supporting plate 25, a vertical connecting plate 26, and a matching piece 27. A cable sleeve connecting hole is provided in the middle of the steel corbel bottom plate 21. The shear plate 22 is symmetrically arranged above the steel corbel bottom plate 21. The limit plates 23 are arranged at both ends of the steel corbel bottom plate 21 between the shear plates 22. The bolts 24 are evenly arranged on the steel corbel bottom plate 21. The T-shaped supporting plate 25 is symmetrically arranged below the steel corbel bottom plate 21. The vertical connecting plate 26 is arranged below the steel corbel bottom plate 21, and one end is connected to the T-shaped supporting plate 25. The matching piece 27 is arranged at the limit plate 23, and is welded to the steel corbel bottom plate 21, the limit plate 23, the T-shaped supporting plate 25, and the vertical connecting plate 26. A matching piece stiffening plate 28 is arranged inside the matching piece 27.

[0023] In this embodiment, the shear plate 22, the T-shaped supporting plate 25 and the vertical connecting plate 26 are welded to the steel corbel bottom plate 21 by full penetration welds.

[0024] In this embodiment, the anchor boxes 12 are symmetrically arranged, and the cable sleeve connection holes are inclined toward both sides at both ends of the main structure 11.

[0025] In this embodiment, a plurality of limiting plate reinforcement holes are provided on the limiting plate 23 , and a plurality of shear plate reinforcement holes are evenly provided on the shear plate 22 .

[0026] Example 2

[0027] On the basis of Example 1, in this example, Figure 4 A combined steel anchor beam is shown, the anchor box 12 includes: an anchor plate 121, a closing plate 122, a main support plate 123, a secondary support plate 124, and an anchor box stiffening plate 125. The main support plate 123 is arranged between the anchor plate 121 and the closing plate 122 for connection. The secondary support plate 124 is arranged between the main support plates 123 and connected to the anchor plate 121 and the closing plate 122. There are several anchor box stiffening plates 125, which are arranged on the outside of the main support plate 123.

[0028] like Figure 1 A composite steel anchor beam is shown, the main structure 11 includes: a panel 111, a web 112, a main stiffening plate 113, and a top plate 114, the web 112 is arranged on both sides above the panel 111, and the web 112 is connected to the main support plate 123 by full penetration welding, the top plate 114 is arranged on the outer side of the web 112 away from the end of the panel 111, the main stiffening plate 113 is arranged on the outer side of the web 112, and the two ends are connected to the panel 111 and the top plate 114.

[0029] In this embodiment, the web 112 is provided with a plurality of bolt connection holes at both ends, and the vertical connection plate 26 is provided with a plurality of holes matching the bolt connection holes at both ends of the web 112, and is connected by using large hexagonal high-strength bolts.

[0030] In this embodiment, the closing plate 122 has a hole in the middle, and the cable sleeve 3 passes through the hole of the closing plate 122 and is welded and sealed with the closing plate 122 .

[0031] It should be noted that the above is only a technical solution of the utility model and is not a limitation. Although the utility model is described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A combined steel anchor beam, characterized in that: include: A steel anchor beam (1), the steel anchor beam (1) comprising: a main structure (11) and an anchor box (12), the main structure (11) being in the shape of a frame with an upper opening, the anchor box (12) being arranged at both ends inside the main structure (11), and having a cable sleeve connection hole inside the anchor box (12); The steel corbel (2) comprises: a steel corbel bottom plate (21), a shear plate (22), a limit plate (23), a bolt (24), a T-shaped support plate (25), a vertical connecting plate (26), and a matching piece (27). A cable sleeve connecting hole is provided in the middle of the steel corbel bottom plate (21). The shear plate (22) is symmetrically arranged above the steel corbel bottom plate (21). The limit plate (23) is arranged at both ends of the steel corbel bottom plate (21) between the shear plate (22). The bolt (24) is evenly spaced. The matching piece (27) is arranged on the steel corbel bottom plate (21), the T-shaped supporting plate (25) is symmetrically arranged below the steel corbel bottom plate (21), the vertical connecting plate (26) is arranged below the steel corbel bottom plate (21), and one end is connected to the T-shaped supporting plate (25), the matching piece (27) is arranged at the limiting plate (23), and is connected to the steel corbel bottom plate (21), the limiting plate (23), the T-shaped supporting plate (25), and the vertical connecting plate (26) by welding, and a matching piece stiffening plate (28) is arranged inside the matching piece (27); A cable sleeve (3) is provided through the cable sleeve connection holes on the steel corbel bottom plate (21) and the anchor box (12).

2. A combined steel anchor beam according to claim 1, characterized in that: The shear plate (22), the T-shaped supporting plate (25) and the vertical connecting plate (26) are welded to the steel corbel bottom plate (21) by full penetration welds.

3. The combined steel anchor beam according to claim 1, characterized in that: The anchor boxes (12) are symmetrically arranged, and the cable sleeve connection holes are arranged at both ends of the main structure (11) and are inclined toward both sides.

4. A combined steel anchor beam according to claim 3, characterized in that: The anchor box (12) comprises: an anchor plate (121), a closing plate (122), a main support plate (123), a secondary support plate (124), and an anchor box stiffening plate (125); a main support plate (123) is arranged between the anchor plate (121) and the closing plate (122) to connect; the secondary support plate (124) is arranged between the main support plates (123) and is connected to the anchor plate (121) and the closing plate (122); and there are a plurality of anchor box stiffening plates (125) arranged on the outside of the main support plate (123).

5. The combined steel anchor beam according to claim 1, characterized in that: The main structure (11) comprises: a panel (111), a web (112), a main stiffening plate (113), and a top plate (114); the web (112) is arranged on both sides above the panel (111), and the web (112) is connected to a main support plate (123) by full penetration welding; the top plate (114) is arranged on the outside of the web (112) at one end away from the panel (111); the main stiffening plate (113) is arranged on the outside of the web (112), and the two ends are connected to the panel (111) and the top plate (114).

6. The combined steel anchor beam according to claim 1, characterized in that: The limiting plate (23) is provided with a plurality of limiting plate rib penetration holes.

7. The combined steel anchor beam according to claim 1, characterized in that: The anti-shear plate (22) is evenly provided with a plurality of anti-shear plate reinforcement holes.

8. The combined steel anchor beam according to claim 5, characterized in that: The web (112) is provided with a plurality of bolt connection holes at both ends.

9. The combined steel anchor beam according to claim 8, characterized in that: The vertical connection plate (26) is provided with a plurality of holes matching the bolt connection holes at both ends of the web (112), and is connected by using large hexagonal high-strength bolts.

10. The combined steel anchor beam according to claim 4, characterized in that: The closing plate (122) has a hole in the middle, and the cable sleeve (3) passes through the hole of the closing plate (122) and is welded and sealed with the closing plate (122).

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