CN203891088U - Steel reinforcement cage for maintenance and reinforcement of concrete piles at wet and underwater positions - Google Patents
Steel reinforcement cage for maintenance and reinforcement of concrete piles at wet and underwater positions Download PDFInfo
- Publication number
- CN203891088U CN203891088U CN201420179794.8U CN201420179794U CN203891088U CN 203891088 U CN203891088 U CN 203891088U CN 201420179794 U CN201420179794 U CN 201420179794U CN 203891088 U CN203891088 U CN 203891088U
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- reinforcement
- maintenance
- pile
- cage
- reinforcing cage
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Abstract
The utility model provides a steel reinforcement cage for the maintenance and reinforcement of concrete piles at wet and underwater positions, and the cage comprises a cage body and a plurality of strip-shaped anchor plates. The cage body is enclosed by a plurality of reinforcing mesh sheets according to the outer contour of a maintained pile, thereby forming a periphery-closed reinforcing bar ring. The reinforcing mesh sheets have a plurality of lateral reinforcing bars. The strip-shaped anchor plates are fixed at the outer walls of the piles in advance along the axial direction, and are provided with a plurality of lateral grooves. The tail ends of the lateral reinforcing bars extend into the lateral grooves of the strip-shaped anchor plates, and are fixed. The cage provided by the utility model is simple and reasonable in structure, is good in reinforcing effect, is reliable in construction quality, is simple and quick in operation of installation and construction, can reduce the labor intensity of constructors to maximum degree, reduces the weight, simplifies the installation step, eliminates the mechanical cooperation to the greatest extent, enables most of pre-installation to be completed on a processing site, thereby achieving the purpose of reliably adding bars to a damaged pile under the condition that no construction platform needs to be built up.
Description
Technical field
The utility model relates to a kind of maintenance of pile under water reinforcing cage, belongs to and in steel concrete maintenance technique field, is applicable to humidity and damages pile maintenance reinforcement reinforcing cage under water, makes the pile recovery after maintenance or improves its supporting capacity.
Technical background
In long-term marine corrosion environment or under flowing water souring, the pile of hydraulic structures and bridge construction is easily damaged, especially Lang Jian district, fluctuation of water table district and under water district.This type of damage often, from reinforcing bar, is especially positioned at outermost lateral tie.For pile class formation thing, mainly bear pressure, the interaction energy of its lateral tie improves concrete compressive strength in pile class formation thing greatly.The corrosion of pile reinforcing bar and fracture will have a strong impact on its supporting capacity, therefore when this type of pile corrosion of steel bar acquires a certain degree (being less than 80% as reinforcing bar remaining cross-section is long-pending), in maintenance and reinforcement design, must consider repair welding or be welded with reinforcing bar to improve bearing capacity, be the reinforcing cage that increases sealing and the hoop effect of contraction best approach is provided.
For land construction, with reinforcing bar establishment reinforcing cage, be very easy thing, generally use steel bar continuous around longitudinal reinforcement coiling.But for construction environment moist and, be limited to superstructure spatial limitation while repairing impaired pile under water, often need to build specific and operation platform firmly carries out coiling reinforcing cage construction operation under water by diver again, its difficulty greatly increases; Simultaneously; the conventional protective layer thickness uniformity of the reinforcing bar of bar planting reinforcing technique is under water difficult to guarantee; and because of chlorion, to invade the protective layer thickness of the corrosion of steel bar cause and reinforcing bar closely related; when there is inhomogeneities in the protective layer thickness of reinforcing bar; there is at first local corrosion and destruction in the reinforcing bar of a protective layer thickness side less than normal, the investigation of existing hydraulic structures show protective layer thickness uniformity bad be the major reason that causes Rust of Rebar in Concrete.
In order to ensure maintenance and reinforcement effect, to reduce maintenance and reinforcement cost, need a kind of construction simply light, can rely on small-scale workshops platform or small-scale workshops ship can complete the reinforcing cage of installation.
Utility model content
In order to solve above-mentioned practical problem, overcome and in prior art, be difficult under the condition of not stablizing operation platform, to the problem that reinforcing cage is installed damaging pile waterborne, to provide a kind of simple and reasonable, easy installation and reliable pile maintenance reinforcing cage under water.
To achieve these goals, the utility model has adopted following technical scheme: the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile, it is characterized in that: comprise that cage body and some strips are anchored plate, described cage body is enclosed the reinforced steel bar ring of circumferential closure according to quilt maintenance pile outline by some reinforced mesh, described reinforced mesh has many transverse reinforcements, described anchor plate pre-fixes vertically in pile outer wall, be anchored plate and be provided with many transverse concave grooves, described transverse reinforcement end stretches in the transverse concave groove that is anchored plate and fixes.
Transverse reinforcement on two adjacent reinforcing cage net sheets staggers mutually, stretches into and is anchored in the different transverse concave groove of plate.
The end of transverse reinforcement has been attacked screw thread, and the end of transverse reinforcement penetrates anchor plate, and is fixed with respectively nut in the both sides that are anchored plate.
Described reinforced mesh is interlocked and is welded by many transverse reinforcements and Duo Gen longitudinal reinforcement.
Described reinforced mesh is made as circular or a polygonal part in advance according to the shape of the pile being keeped in repair.
Described anchor plate is installed on the pile being keeped in repair by crab-bolt.
The utility model is divided into some reinforced mesh reinforcing cage, the work such as the bending of reinforced mesh, welding, processing all complete processing space is prefabricated, greatly reduced field erected workload, and the lighter weight of reinforced mesh, remove the use of lifting appliance from, then by reliable anchoring process, again reinforced mesh is connected into sealing reinforcing cage, realize to the object of damaging pile reinforcement.The utlity model has simple and reasonable, consolidation effect is good, the advantages such as reliable construction quality, installation is simple to operate, quick, can reduce to greatest extent constructor's labour intensity, comprises minimizing weight, simplify installation steps, exempt machinery as far as possible and coordinate, the prefabricated job placement of the overwhelming majority is completed in processing space, thereby realize without building the object that realizes reliable reinforcement under the condition of operation platform to damage pile.
Accompanying drawing explanation
Fig. 1 is the utility model pile maintenance reinforcing cage scheme of installation;
Fig. 2 is that the maintenance of the utility model pile is installed top view with reinforcing cage;
Fig. 3 a is that the utility model is anchored plate side schematic view;
Fig. 3 b is that the utility model is anchored plate front schematic view;
Fig. 3 c is adjacent two reinforcing cage net sheets and is anchored the schematic diagram that plate is connected and fixed;
Fig. 4 is that the utility model circular cross-section reinforcing cage is divided into 3 reinforced mesh schematic diagrames;
Fig. 5 is that the utility model polygonal cross-section reinforcing cage reinforced mesh is divided schematic diagram.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment, the utility model is described in further detail.
Now in conjunction with Fig. 1 and Fig. 2, the structure of reinforcing cage for maintenance of the present utility model is described, figure pile post is cylinder pile, is not restricted to cylinder pile in practical operation, can also be polygon.
The maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile of the present utility model, comprises that cage body and some strips are anchored plate 4, and described cage body is enclosed the reinforced steel bar ring of circumferential closure according to quilt maintenance pile 7 outlines by some reinforced mesh 1.Described reinforced mesh 1 has many transverse reinforcements 2 and vertical reinforcement 3.Be anchored plate 4 two ends and be drilled with installing hole 6, by crab-bolt 10, pre-fix in the failure area 8 of pile 7 outer walls, be anchored plate 4 and be provided with many transverse concave grooves that are arranged in parallel 5, the end of transverse reinforcement 2 stretches in the transverse concave groove 5 that is anchored plate 4 also fixing by nut 9.
As a kind of embodiment, the transverse reinforcement 2 of described reinforced mesh prebends into the geometry that is reinforced pile cross section, and the screw thread 11 that meets installation requirement length is all attacked at its two ends.
Pile maintenance is as follows by reinforcing cage design, processing and installation steps:
1. according to the cross section profile design reinforcing cage by maintenance pile, comprise the height of reinforcing scope, the selection of bar diameter, the spacing between reinforcing bar, the division of reinforced mesh.
2. transverse reinforcement should be reserved the installation length of two ends tapping part, then cut reinforcing bar standby, rib tapping is shelled in transverse reinforcement two ends and process and guarantee that screw thread and nut coordinate, according to maintenance pile cross section profile, transverse reinforcement (non-threaded section) is bent, guarantee that bending rear curvature meets installation requirement.
3. vertical and horizontal steel bar welding is connected into reinforced mesh standby.
4. as shown in Figure 3 a, 3 b, according to the spacing of transverse reinforcement, on anchor plate 4, offer groove 5, in the end that is anchored plate, bore installing hole 6, if it is longer to be anchored plate 4, can, being anchored a plurality of positions increase installing holes of plate 4, improve stability is installed.
5. after locate at scene, constructor's the impact drilling; When needs are installed under water, diver treats maintenance pile with pneumatic percussion drill under water and carries out location drilling under water.
6. by crab-bolt 10, being anchored plate 4, be arranged on the pile 7 being reinforced.
7. as shown in Figure 3 c, at the thread head of the reinforced mesh transverse reinforcement nut 7 of screwing in advance, 2 nuts are installed being anchored plate both sides in each end, leave and be greater than the gap that is anchored plate width between two nuts, transverse reinforcement is snapped in the groove that is anchored plate, and bilateral nut check.
8. after installing, check reinforced mesh position, after guaranteeing to keep in repair, thickness of protection tier is even, and the reinforcing cage that forms sealing is whole.
During general application, be divided into 2 semicircle reinforced mesh.But while running into the larger pile of diameter, consider that the weight of reinforced mesh can be divided into a plurality of reinforced mesh, as shown in Figure 4, so that the on-the-spot installation operation of constructor.Run into the pile of polygonal cross-section, if desired keep its outward appearance uniformity, reinforcing cage can be designed to polygon and be divided into rational reinforced mesh simultaneously, as shown in Figure 5.Before installation, should carry out by land test pile, check that whether the position of anchor plate groove and transverse reinforcement be corresponding, if the deviation of existence, because transverse reinforcement end is free end, can be adjusted within the specific limits, before safety, the position of transverse reinforcement should be adjusted; Check simultaneously and adjust the mated condition between the end of thread and nut, the workload when reducing site safety.
Claims (6)
1. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile, it is characterized in that: comprise that cage body and some strips are anchored plate, described cage body is enclosed the reinforced steel bar ring of circumferential closure according to quilt maintenance pile outline by some reinforced mesh, described reinforced mesh has many transverse reinforcements, described anchor plate pre-fixes vertically in pile outer wall, be anchored plate and be provided with many transverse concave grooves, described transverse reinforcement end stretches in the transverse concave groove that is anchored plate and fixes.
2. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile according to claim 1, is characterized in that: the transverse reinforcement on two adjacent reinforcing cage net sheets staggers mutually, stretches into and is anchored in the different transverse concave groove of plate.
3. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile according to claim 2, it is characterized in that: the end of transverse reinforcement has been attacked screw thread, the end of transverse reinforcement penetrates anchor plate, and is fixed with respectively nut in the both sides that are anchored plate.
4. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile according to claim 1, is characterized in that: described reinforced mesh is interlocked and is welded by many transverse reinforcements and Duo Gen longitudinal reinforcement.
5. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile according to claim 1, is characterized in that: described reinforced mesh is made as circular or a polygonal part in advance according to the shape of the pile being keeped in repair.
6. the maintenance and reinforcement reinforcing cage that can be used for humidity and underwater sites concrete pile according to claim 1, is characterized in that: described anchor plate is installed on the pile being keeped in repair by crab-bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179794.8U CN203891088U (en) | 2014-04-14 | 2014-04-14 | Steel reinforcement cage for maintenance and reinforcement of concrete piles at wet and underwater positions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179794.8U CN203891088U (en) | 2014-04-14 | 2014-04-14 | Steel reinforcement cage for maintenance and reinforcement of concrete piles at wet and underwater positions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891088U true CN203891088U (en) | 2014-10-22 |
Family
ID=51717509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179794.8U Expired - Fee Related CN203891088U (en) | 2014-04-14 | 2014-04-14 | Steel reinforcement cage for maintenance and reinforcement of concrete piles at wet and underwater positions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440810A (en) * | 2018-10-31 | 2019-03-08 | 中交四航局第二工程有限公司 | A kind of the underwater grouting reinforcement cage structure and its construction method of cylinder section increasing |
| CN109440810B (en) * | 2018-10-31 | 2024-05-31 | 中交四航局第二工程有限公司 | Underwater grouting reinforcement cage structure with enlarged cylindrical section and construction method thereof |
-
2014
- 2014-04-14 CN CN201420179794.8U patent/CN203891088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440810A (en) * | 2018-10-31 | 2019-03-08 | 中交四航局第二工程有限公司 | A kind of the underwater grouting reinforcement cage structure and its construction method of cylinder section increasing |
| CN109440810B (en) * | 2018-10-31 | 2024-05-31 | 中交四航局第二工程有限公司 | Underwater grouting reinforcement cage structure with enlarged cylindrical section and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |