CN217651597U - Combined anchoring structure of stayed-cable tower - Google Patents
Combined anchoring structure of stayed-cable tower Download PDFInfo
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- CN217651597U CN217651597U CN202120344759.7U CN202120344759U CN217651597U CN 217651597 U CN217651597 U CN 217651597U CN 202120344759 U CN202120344759 U CN 202120344759U CN 217651597 U CN217651597 U CN 217651597U
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Abstract
The combined anchoring structure of the stay cable and cable tower improves the local stress of the cable tower anchor block, overcomes the defect that the concrete tooth block is easy to crack in the traditional box wall anchoring mode, and effectively improves the structural durability. Include and set up the steel anchor beam in the cable tower in big cable force district to and set up the tooth piece structure in the cable tower in little cable force district, characterized by: the steel plates are arranged on the inner surfaces of the tooth block structures in the cable tower in an internally-adhered mode, the steel plates are connected into a whole in a welding mode and serve as inner templates for tooth block structure pouring, and the steel plates and the tooth block structure concrete are fixedly connected into a whole through connecting members to form a steel-concrete combined type box wall anchoring structure and bear the force of a cable-stayed cable together.
Description
Technical Field
The utility model relates to a civil construction engineering, the specially adapted cable-stay bridge king-tower suspension cable anchor district structural style.
Background
The stay cable can produce huge cable force in the cable tower anchor area, and what kind of anchor atress configuration form of adoption is the design focus concern. Common anchoring modes of the stay cable include a steel anchor beam, a steel anchor box and a box wall anchoring mode. The tank wall anchoring mode is to set annular prestress steel beams on the tower wall to generate prestress to offset the tensile stress generated by the horizontal component of the stay cable. The vertical force of the guy cable is transmitted to the wall of the guy tower through the tooth block. The steel anchor beam is characterized in that most horizontal component of the stay cable is borne by the anchor beam, and the vertical component and a small amount of unbalanced horizontal component are transferred to the tower wall by the bracket to be borne. The steel anchor box is a combined structure formed by the steel box and a concrete tower wall which are formed by a web plate, a bearing plate, an anchor plate and the like, and bears the cable pulling force together. The steel anchor beam and the steel anchor box have the advantages that the transmission is clear, most of stress is borne by a steel structure, cracks are not easy to generate on the wall of the concrete tower, the manufacturing and the installation are complex, large-tonnage hoisting is needed, the space in the tower is occupied by extrusion, the cross section of the cable tower needs to be enlarged, and the requirement on later maintenance is high. The tank wall anchoring mode has the advantages of flexible installation and manufacture, simple later maintenance and no occupation of space in the tower, and has the disadvantages that the anchor head toothed plate of the stay cable is in a complex multidirectional stress state, the steel bars are dense, the vibration is not dense, and the toothed plate concrete is easy to crack.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a stay cable tower combination anchor structure is provided to improve cable tower anchor block local atress, overcome the shortcoming of the easy fracture of traditional tank wall anchor form concrete tooth piece, effectively improve structural durability.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model discloses a suspension cable tower combination anchor structure, include and set up the steel anchor beam in the cable tower in big cable force district to and set up the tooth piece structure in the cable tower in little cable force district, characterized by: the steel plates are arranged on the inner surfaces of the tooth block structures in the cable tower in an internally-adhered mode, the steel plates are connected into a whole in a welding mode and serve as inner templates for tooth block structure pouring, and the steel plates and the tooth block structure concrete are fixedly connected into a whole through connecting members to form a steel-concrete combined type box wall anchoring structure and bear the force of a cable-stayed cable together.
The utility model has the advantages that the steel-concrete combined anchoring structure fully utilizes the characteristics of high tensile strength and strong flexibility of the steel plate, improves the local stress of the anchor block, overcomes the defect of easy cracking of the traditional concrete tooth block and improves the structural durability; on the premise of ensuring the structure safety, the method realizes economic saving and makes the best use of the materials, and is particularly suitable for the cable-stayed bridge tower structure in mountainous areas.
Drawings
The specification includes the following seven drawings:
fig. 1 is a schematic structural view (front view) of the combined anchoring structure of a stay cable tower of the present invention;
fig. 2 is a schematic structural view (side view) of the stay cable tower combined anchoring structure of the present invention;
fig. 3 is a plan view of a bearing steel plate in the stay cable tower combined anchoring structure of the present invention;
fig. 4 is a schematic view of the connection mode of the bearing steel plate and the concrete of the tooth block structure in the stay cable tower combined anchoring structure of the present invention;
FIG. 5 is a plan view of a side wall steel plate in the stay cable tower combined anchoring structure of the present invention;
fig. 6 is a schematic view of the connection mode between the side wall steel plate and the concrete of the tooth block structure in the stay cable tower combined anchoring structure of the present invention;
fig. 7 is an enlarged view of a portion a in fig. 6.
The figures show the components and corresponding references: the cable tower comprises a cable tower 10, a steel anchor beam 11, a tooth block structure 12, a cable tower main rib 13, a cable tower hook rib 14, a steel plate 20, a pressure-bearing steel plate 21, a side wall steel plate 22, a welding nail 23, a PBL shear key 24 and a tooth block steel bar 25.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1 and 2, the present invention provides a stay cable and cable tower combined anchoring structure, which includes a steel anchor beam 11 disposed in a cable tower 10 in a large cable force area, and a tooth block structure 12 disposed in the cable tower 10 in a small cable force area. Steel plates 20 are attached to the surfaces of the tooth block structures 12 in the cable tower 10, the steel plates 20 are welded and connected into a whole to serve as inner formworks for casting the tooth block structures 12, and are fixedly connected with the tooth block structures 12 into a whole through connecting members to form a steel-concrete combined type box wall anchoring structure which bears the cable force of a cable-stayed cable together. The characteristics of high tensile strength and strong flexibility of the steel plate are fully utilized, the local stress of the anchor block is improved, the defect that the traditional concrete tooth block is easy to crack is overcome, the structural durability is improved, and the steel plate is particularly suitable for the cable-stayed bridge tower structure in mountainous areas.
Referring to fig. 4 and 5, the steel plate 20 includes a bearing steel plate 21 disposed on the anchor surface of the stay cable of the tooth block structure 12, the connecting member is a welding nail 23 longitudinally and transversely spaced on the surface of the bearing steel plate 21, and the welding nail 23 is welded to the bearing steel plate 21.
Referring to fig. 6 and 7, the steel plate 20 includes a side wall steel plate 22 disposed on each side wall of the tooth block structure 12, and the connecting members include a weld stud 23, a PBL shear key 24. The PBL shear keys 24 are arranged on the plate surface of the side wall steel plate 22 at intervals in the transverse direction and welded with the plate surface, the tooth block steel bars 25 penetrate through holes in the PBL shear keys 24, and the welding nails 23 are arranged on the plate surface of the side wall steel plate 22 at intervals in the longitudinal direction and the transverse direction and welded with the plate surface.
The above description is only used for illustration of some principles of the stay cable tower combined anchoring structure of the present invention, but not to limit the present invention to the specific structure and application range shown and described, so all the corresponding modifications and equivalents that may be utilized all belong to the patent scope of the present invention.
Claims (3)
1. Stay cable pylon combination anchor structure sets up steel anchor beam (11) in cable pylon (10) including setting up in main stress zone to and set up tooth piece structure (12) in cable pylon (10) in inferior stress zone, characterized by: the steel plates (20) are arranged on the surfaces of the tooth block structures (12) in the cable tower (10) in an inner pasting mode, the steel plates (20) are connected into a whole in a welding mode to serve as inner formworks for casting the tooth block structures (12), and are fixedly connected with the tooth block structures (12) into a whole through connecting members to form a steel-concrete combined type box wall anchoring structure, and the steel-concrete combined type box wall anchoring structure bears the force of a stay cable together.
2. The stay cable and cable tower combined anchor structure as recited in claim 1, wherein: the steel plate (20) comprises a pressure-bearing steel plate (21) arranged on an anchoring surface of the stay cable of the tooth block structure (12), the connecting members are welding nails (23) longitudinally and transversely arranged on the surface of the pressure-bearing steel plate (21) at intervals, and the welding nails (23) are welded with the pressure-bearing steel plate (21).
3. The stay cable and cable tower combined anchor structure as recited in claim 1, wherein: the steel plate (20) comprises side wall steel plates (22) arranged on each side wall of the tooth block structure (12), the connecting component comprises welding nails (23) and PBL shear keys (24), the PBL shear keys (24) are arranged on the plate surface of the side wall steel plate (22) at intervals in the transverse direction and are welded with the side wall steel plate, tooth block steel bars (25) penetrate through holes in the PBL shear keys (24), and the welding nails (23) are arranged on the plate surface of the side wall steel plate (22) at intervals in the longitudinal direction and in the transverse direction and are welded with the side wall steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120344759.7U CN217651597U (en) | 2021-02-07 | 2021-02-07 | Combined anchoring structure of stayed-cable tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120344759.7U CN217651597U (en) | 2021-02-07 | 2021-02-07 | Combined anchoring structure of stayed-cable tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217651597U true CN217651597U (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120344759.7U Active CN217651597U (en) | 2021-02-07 | 2021-02-07 | Combined anchoring structure of stayed-cable tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217651597U (en) |
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2021
- 2021-02-07 CN CN202120344759.7U patent/CN217651597U/en active Active
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