CN217438714U - A protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes - Google Patents
A protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes Download PDFInfo
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- CN217438714U CN217438714U CN202221557152.8U CN202221557152U CN217438714U CN 217438714 U CN217438714 U CN 217438714U CN 202221557152 U CN202221557152 U CN 202221557152U CN 217438714 U CN217438714 U CN 217438714U
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- fiber
- fiber cloth
- concrete structure
- anchoring area
- prestressed concrete
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Abstract
The utility model discloses a protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes, including a plurality of inoxidizing coatings, arbitrary inoxidizing coating setting is at prestressed concrete structure's surface, and arbitrary inoxidizing coating includes: a plurality of fiber plates which are arranged on the outer surface of the prestressed concrete structure at intervals along the length direction of the anchoring area; the first fiber cloths are arranged at intervals along the length direction of the anchoring area, and any one first fiber cloth is attached to the outer surfaces of two adjacent fiber plates through fiber cloth glue; and the second fiber cloth is arranged along the length direction of the anchoring area and is adhered to the outer surfaces of the plurality of first fiber cloth through fiber cloth glue. The utility model discloses a fibreboard and fibre cloth mutually support to carry out effective energy dissipation to the huge impact after the prestressing steel is fragile, thereby avoid prestressing steel and broken concrete bullet to jet out prestressed concrete structure's outside, lead to the emergence of accident.
Description
Technical Field
The utility model relates to a bridge engineering technical field. More specifically, the utility model relates to a protective structure that is used for preventing brittle failure of cable tower anchor district prestressing steel and assaults.
Background
In order to enable a concrete structure in a cable tower anchoring area to meet the design anti-cracking requirement, high-level pre-tensioning stress needs to be applied to a steel bar in advance during construction, the prestressed steel bar stores elastic potential energy at a high stress level in a normal working state, the material of the prestressed steel bar is low alloy steel with high brittleness, delayed fracture is easy to occur, and sudden delayed fracture of the prestressed steel bar occurs after some bridges are built for decades or decades, so that potential safety hazards and adverse social effects are caused to bridge operation.
After the prestressed reinforcement in the concrete structure of the solid bridge is broken, the reinforcement ejected at high speed and the crushed concrete block thereof can cause great safety threat to passing vehicles and pedestrians, resulting in accidents. Therefore, it is necessary to protect the cable tower anchoring zone prestressed reinforcement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is still another purpose to provide a can carry out effective energy dissipation to the huge impact that produces behind the prestressing steel brittle failure, avoid prestressing steel and broken concrete bullet to jet out the outer, the protective structure who is used for preventing the brittle failure of prestressing steel of cable tower anchor district and assaults.
In order to realize the utility model discloses these objects and other advantages according to the utility model provide a protective structure for preventing that cable tower anchor district prestressing steel brittle failure strikes, including a plurality of inoxidizing coating that set up along the direction of height interval in anchor district, arbitrary inoxidizing coating setting is at the surface of the prestressed concrete structure that anchor district corresponds, and arbitrary inoxidizing coating includes:
the fiber plates are arranged at intervals along the length direction of the anchoring area, and any fiber plate is fixedly arranged on the outer surface of the prestressed concrete structure through a plurality of bolts;
the first fiber cloths are arranged at intervals along the length direction of the anchoring area, and any one of the first fiber cloths is adhered to the outer surfaces of two adjacent fiber boards through fiber cloth glue;
and the second fiber cloth is arranged along the length direction of the anchoring area and is adhered to the outer surfaces of the plurality of first fiber cloth through fiber cloth glue.
Preferably, a fiberboard glue is applied between the fiberboard and the outer surface of the prestressed concrete structure.
Preferably, the outer surface of the prestressed concrete structure is frosted.
Preferably, the periphery of the first fiber cloth extends out of the two adjacent fiber plates, and two ends of the second fiber cloth extend out of the plurality of first fiber cloths.
Preferably, the outer side wall of any bolt is provided with a barb.
The utility model discloses at least, include following beneficial effect: the utility model discloses a fiberboard and fiber cloth mutually support's mode, carry out effective energy dissipation to the huge impact after the prestressing steel is brittle, make brittle-fracture prestressing steel not puncture protective structure to avoid prestressing steel and broken concrete bullet to jet out prestressing steel concrete structure's outside, lead to the incident of casualties or loss of property.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic front view of the protective structure of the present invention;
FIG. 2 is a sectional view of the side view structure of the present invention;
the specification reference numbers indicate:
1. the prestressed concrete structure comprises a first fiber cloth, 2, a fiber board, 3, an outer surface of a prestressed concrete structure, 4, bolts, 5, barbs, 6, a second fiber cloth, 7 and prestressed reinforcements.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-2, the utility model provides a protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes, including a plurality of inoxidizing coatings that set up along the direction of height interval in anchor district, arbitrary inoxidizing coating setting is at the surface 3 of the prestressed concrete structure that anchor district corresponds, and arbitrary inoxidizing coating includes:
a plurality of fiber plates 2 which are arranged at intervals along the length direction of the anchoring area, wherein any fiber plate 2 is fixedly arranged on the outer surface 3 of the prestressed concrete structure through a plurality of bolts 4;
a plurality of first fiber cloths 1 are arranged at intervals along the length direction of the anchoring area, and any one first fiber cloth 1 is attached to the outer surfaces of two adjacent fiber plates 2 through fiber cloth glue;
and the second fiber cloth 6 is arranged along the length direction of the anchoring area, and the second fiber cloth 6 is attached to the outer surfaces of the plurality of first fiber cloths 1 through fiber cloth glue.
In the above technical solution, the prestressed reinforcement 7 is arranged inside the prestressed concrete structure corresponding to the anchoring area, and the prestressed reinforcement 7 is ejected outside the prestressed concrete structure after being brittle-broken, that is, the fiber boards 2, the first fiber cloth 1 and the second fiber cloth 6 are sequentially arranged on the outer surface 3 of the prestressed concrete structure towards the direction away from the prestressed reinforcement 7, the fiber boards 2 are arranged on the outer surface 3 of the prestressed concrete structure through the bolts 4 to enhance the stability of the connection between the fiber boards and the prestressed concrete structure, the two adjacent fiber boards 2 are taken as a group, the first fiber cloth 1 is arranged on the outer surfaces of the two adjacent fiber boards 2 through the fiber cloth adhesive, the second fiber cloth 6 is arranged on the outer surfaces of the first fiber cloths 1 through the fiber cloth adhesive length to form the protective layer, and the plurality of protective layers are arranged along the height direction of the anchoring area, so that the outer surfaces 3 of the prestressed concrete structure at the position where the prestressed reinforcement 7 is arranged are all protected by the protective layer The protection effect is ensured; when the steel bar is brittle-broken, firstly, the fiberboard 2 forms a first defense line between the fiberboard and the prestressed concrete structure by utilizing the impact toughness and the strength of the fiberboard and is used for consuming and absorbing huge impact energy generated after the prestressed steel bar 7 is brittle-broken; secondly, the first fiber cloth 1 further wraps the fiber board 2 on the prestressed concrete structure, and the bonding force between the fiber board and the prestressed concrete structure forms a second defense line, so that the residual impact energy of the prestressed reinforcement 7 is absorbed in a second consumption mode; when the fiber board 2 is impacted by the prestressed reinforcement 7 and is vacuumed between the prestressed concrete structure, the first fiber cloth 1 holds the vacuumed fiber board 2 and absorbs the residual impact energy of the prestressed reinforcement 7 to prevent the prestressed reinforcement 7 from being ejected out of the prestressed concrete structure, the second fiber cloth 6 transversely penetrates through the outer surfaces of the first fiber cloths 1, the first fiber cloths 1 and the fiber board 2 are further wrapped on the prestressed concrete structure to form a third defense line, and the protective capability of the whole structure is further ensured.
In another technical scheme, a fiberboard 2 glue is coated between the fiberboard 2 and the outer surface 3 of the prestressed concrete structure. In this technical scheme, 2 glues of fibreboard are used for reinforcing the adhesion between fibreboard 2 and the prestressed concrete structure to strengthen the impacted ability of first way defence line.
In another technical solution, the outer surface 3 of the prestressed concrete structure is frosted. In the technical scheme, the surface of the prestressed concrete structure in the protection range is polished to a frosted surface, so that the protective layer can be conveniently installed.
In another technical scheme, the peripheries of the first fiber cloths 1 extend out of the two adjacent fiber plates 2, and two ends of the second fiber cloth 6 extend out of the first fiber cloths 1. In this technical scheme, first fibre cloth 1 extends the outside of two adjacent fibreboards 2 and second fibre cloth 6 extends the outside of first fibre cloth 1, and the area of guaranteeing the coverage of fibre cloth is great, and the protection zone who forms is bigger.
In another technical scheme, a barb 5 is arranged on the outer side wall of any bolt 4. In this solution, the barbs 5 may further enhance the stability of the connection between the fibreboard 2 and the prestressed concrete structure.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides a protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes which characterized in that, includes a plurality of inoxidizing coating that set up along the direction of height interval in anchor district, and arbitrary inoxidizing coating setting is at the prestressed concrete structure's that the anchor district corresponds surface, and arbitrary inoxidizing coating includes:
a plurality of fiber plates which are arranged at intervals along the length direction of the anchoring area, wherein any fiber plate is fixedly arranged on the outer surface of the prestressed concrete structure through a plurality of bolts;
the first fiber cloths are arranged at intervals along the length direction of the anchoring area, and any one of the first fiber cloths is adhered to the outer surfaces of two adjacent fiber boards through fiber cloth glue;
and the second fiber cloth is arranged along the length direction of the anchoring area and is adhered to the outer surfaces of the plurality of first fiber cloth through fiber cloth glue.
2. The protective structure for preventing brittle fracture of prestressed reinforcement in cable tower anchoring area according to claim 1, characterized in that fiberboard glue is coated between said fiberboard and the outer surface of said prestressed concrete structure.
3. The protective structure for preventing brittle fracture of prestressed reinforcement in cable tower anchoring area according to claim 1, characterized in that the outer surface of said prestressed concrete structure is frosted.
4. The protective structure for preventing brittle fracture impact of prestressed reinforcement in cable tower anchoring area according to claim 1, wherein the periphery of said first fiber cloth is extended to the outside of two adjacent fiber plates, and the two ends of said second fiber cloth are extended to the outside of a plurality of said first fiber cloth.
5. The shielding structure for preventing brittle fracture of prestressed reinforcement in cable tower anchoring area according to claim 1, characterized in that the outer side wall of any bolt is provided with barbs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221557152.8U CN217438714U (en) | 2022-06-21 | 2022-06-21 | A protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221557152.8U CN217438714U (en) | 2022-06-21 | 2022-06-21 | A protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217438714U true CN217438714U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221557152.8U Active CN217438714U (en) | 2022-06-21 | 2022-06-21 | A protective structure for preventing brittle failure of cable tower anchor district prestressing steel strikes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217438714U (en) |
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2022
- 2022-06-21 CN CN202221557152.8U patent/CN217438714U/en active Active
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