CN217517370U - Light combined anchorage for concrete box type arch bridge cantilever pouring - Google Patents
Light combined anchorage for concrete box type arch bridge cantilever pouring Download PDFInfo
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- CN217517370U CN217517370U CN202221544690.3U CN202221544690U CN217517370U CN 217517370 U CN217517370 U CN 217517370U CN 202221544690 U CN202221544690 U CN 202221544690U CN 217517370 U CN217517370 U CN 217517370U
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- vertical rock
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Abstract
The utility model relates to a bridge construction technical field discloses a concrete box arched bridge cantilever is pour and is used light-duty combination anchorage, including the massif, the massif upper surface is provided with many cushion cap excavation lines, the direction department of massif upper surface along cushion cap excavation line is provided with the cushion cap foundation ditch, the cushion cap is installed through the reinforcing bar in the inside of cushion cap foundation ditch, the inside of cushion cap is provided with a plurality of tower anchor ropes of detaining, inside one side of cushion cap is provided with a plurality of vertical rock anchors, the upper surface of cushion cap is equipped with the second preformed hole to along vertical rock anchor extension line. The utility model discloses in, this technical scheme is light-duty anchorage, and the temporary work volume is zero except that vertical rock anchor, and cost is extremely cheap, and the anchorage utilizes the massif to undertake main load, and the security is high, and anchorage topography adaptability is good, and application scope is wide, adjusts anchor rope cable force and can untie the cable at any time on cushion cap surface, moves steady, safe and reliable, has both reduced intensity of labour, has improved the efficiency of construction again.
Description
Technical Field
The utility model relates to a bridge construction technical field especially relates to a concrete box arch bridge cantilever is pour and is used light-duty combination anchorage.
Background
In bridge construction, the reinforced concrete box type arch bridge has the advantages of strong terrain adaptability, low manufacturing cost, simple maintenance and the like, and is widely applied to west mountain areas. In the construction of a main arch ring of a reinforced concrete box type arch bridge, a cable hoisting method, a stiff skeleton method, a turning method, a support cast-in-place method and other construction methods are mostly adopted, while a cantilever pouring method is rare, the main reason is that the construction measures of the construction method are high in cost, and especially, an anchor fastening system occupies a large part of the measure cost.
In view of this, the anchor fastening system with high safety, low cost and strong operability is developed, and the application prospect of constructing the reinforced concrete box type arch bridge by the cantilever pouring method is necessarily popularized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a light combined anchorage for concrete box type arch bridge cantilever casting.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a concrete box arched bridge cantilever is pour with light-duty combination anchorage, includes the massif, the massif upper surface is provided with many cushion cap excavation lines, the direction department of massif upper surface along cushion cap excavation line is provided with the cushion cap foundation ditch, the cushion cap is installed through the reinforcing bar in the inside of cushion cap foundation ditch, the inside of cushion cap is provided with a plurality of tower anchor ropes of detaining, one side of cushion cap is equipped with along detaining the first preformed hole that tower anchor rope extension line corresponds, inside one side of cushion cap is provided with a plurality of vertical rock anchors, the upper surface of cushion cap is equipped with along the second preformed hole that vertical rock anchor extension line is right.
As a further description of the above technical solution:
and a pier is arranged in the bearing platform.
As a further description of the above technical solution:
and a first anchor backing plate matched with the buckling tower anchor cable is arranged at the tail end of the first preformed hole on the side surface of the bearing platform.
As a further description of the above technical solution:
and a second anchor backing plate matched with the vertical rock anchor is arranged at the upper end of the second preformed hole on the upper surface of the bearing platform.
As a further description of the above technical solution:
the vertical rock anchors are scattered at the tail end and are arranged in a staggered mode.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, this technical scheme is light-duty anchorage, the temporary works volume is zero except vertical rock anchor, and the cost is extremely cheap, and anchor end simple structure, maneuverability is good, safe and reliable, low cost to but recycle anchor rope can realize green construction, the anchorage utilizes the massif to undertake main load simultaneously, the security is high, anchorage topography adaptability is good, application scope is wide, solve conventional technique and need set up independent rock anchor, stake anchor or gravity anchor and resist the problem of anchor rope horizontal force.
2. The utility model discloses in, through setting up vertical rock anchor to the cushion cap, with the problem of solving conventional pile anchor pile foundation tensile bearing under the anchor rope atress condition, ensured that permanent structure does not bear temporary load, vertical rock anchor staggers at length direction and tail end distance simultaneously, set up the interval at cushion cap anchor end satisfy ground tackle installation and stretch-draw operation space can, can solve the problem that conventional technique needs set up bulky anchorage, adjust the anchor rope cable force and can separate the cable at any time on the cushion cap surface, the action is steady, safety and reliability, not only reduced intensity of labour, the efficiency of construction has been improved again.
Drawings
Fig. 1 is the utility model provides an engineering schematic diagram of concrete box type arch bridge cantilever casting is with light-duty combination anchorage.
Illustration of the drawings:
1. a mountain body; 2. carrying out bearing platform excavation line; 3. a bearing platform foundation pit; 4. a bearing platform; 5. a bridge pier; 6. a first preformed hole; 7. a first anchor backing plate; 8. buckling a tower anchor cable; 9. a second preformed hole; 10. a second anchor backing plate; 11. and (6) a vertical rock anchor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides an embodiment: a light combined anchorage for concrete box type arch bridge cantilever casting comprises a mountain body 1, wherein a plurality of bearing platform excavation lines 2 are arranged on the upper surface of the mountain body 1, a bearing platform foundation pit 3 is arranged on the upper surface of the mountain body 1 along the direction of the bearing platform excavation lines 2, a bearing platform 4 is arranged in the bearing platform foundation pit 3 through reinforcing steel bars, the bearing platform 4 is of a permanent structure and serves as an anchor cable anchoring end, an anchor cable converter is considered at the same time, the anchorage is not required to be arranged independently, the arrangement position of the anchorage does not need to meet the requirement of anchor installation and tensioning operation space, the problem of large-area construction caused by the fact that the arrangement distance of anchor cables is guaranteed in a conventional rock anchor is solved, a plurality of tower buckling anchor cables 8 are arranged in the bearing platform 4, the contact surface of the bottom surface of the bearing platform 4 and the opposite mountain body is smooth and closely contacted, a tensioning operation space is arranged between the mountain body and the bearing platform in the anchoring surface direction of the anchor cables of the bearing platform, one side of the bearing platform 4 is provided with first preformed holes 6 corresponding to the extension line of the tower buckling 8, inside one side of cushion cap 4 is provided with a plurality of vertical rock anchors 11, solves conventional pile anchor pile foundation under the anchor rope atress condition and bears tensile problem, has ensured that permanent structure does not bear temporary load, and the upper surface of cushion cap 4 is equipped with along vertical rock anchor 11 extension line to second preformed hole 9, and the interval of first preformed hole 6, second preformed hole 9 satisfies corresponding model ground tackle installation and stretch-draw operating space.
Further, be provided with pier 5 in the cushion cap 4, the tail end of first preformed hole 6 is provided with and detains tower anchor rope 8 assorted first anchor backing plate 7 in the side of cushion cap 4, the upper end of second preformed hole 9 is provided with on the upper surface of cushion cap 4 with vertical rock anchor 11 assorted second anchor backing plate 10, remove after the convenient completion, vertical rock anchor 11 scatters at the tail end, become the staggered arrangement, length direction scatters, secondly the plane position outwards disperses in order to satisfy the anchor rope and arranges the interval, vertical rock anchor 11 construction position needs outside the pile foundation scope.
Specifically, the contact area of the bearing platform 4 and the mountain body 1 at the anchoring end of the anchor rope is determined according to the horizontal force of the anchor rope and the geological conditions of the mountain body, the number of the vertical rock anchors 11 is determined according to the vertical force of the anchor rope and the bearing capacity of the single rock anchor, and the contact area of the bearing platform 4 and the mountain body 1 is determined according to the anchoring force of the vertical rock anchors 11 and the geological conditions of the mountain body 1.
The working principle is as follows: firstly, excavating a bearing platform foundation pit 3 along a bearing platform excavation line 2, ensuring that a stress surface is neat, then completing the installation of reinforcing steel bars of a bearing platform 4 and the installation of a first preformed hole 6, a first anchor backing plate 7, a second preformed hole 9 and a second anchor backing plate 10, pouring concrete of the bearing platform 4, after the age of the concrete of the bearing platform 4 is met, drilling a vertical rock anchor 11 hole along the second preformed hole 9, grouting after the vertical rock anchor 11 is installed, then tensioning and anchoring the vertical rock anchor 11 according to the first batch of stress requirements, installing and tensioning a first batch of tower-buckling anchor cables 8, and then repeating the tensioning, anchoring or releasing of the vertical rock anchors 11 and the batch of tower-buckling anchor cables 8.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a concrete box arched bridge cantilever is pour with light-duty combination anchorage, includes massif (1), its characterized in that: mountain body (1) upper surface is provided with many cushion cap excavation line (2), mountain body (1) upper surface is provided with cushion cap foundation ditch (3) along the direction department of cushion cap excavation line (2), cushion cap (4) are installed through the reinforcing bar to the inside of cushion cap foundation ditch (3), the inside of cushion cap (4) is provided with a plurality of tower anchor rope (8) of detaining, one side of cushion cap (4) is equipped with along detaining first preformed hole (6) that tower anchor rope (8) extension line corresponds, inside one side of cushion cap (4) is provided with a plurality of vertical rock anchors (11), the upper surface of cushion cap (4) is equipped with along second preformed hole (9) that vertical rock anchor (11) extension line is right.
2. The light combined anchorage for concrete box type arch bridge cantilever casting according to claim 1, is characterized in that: and a pier (5) is arranged in the bearing platform (4).
3. The light combined anchorage for concrete box type arch bridge cantilever casting according to claim 1, is characterized in that: and a first anchor backing plate (7) matched with the buckling tower anchor cable (8) is arranged at the tail end of the first preformed hole (6) on the side surface of the bearing platform (4).
4. The light combined anchorage for concrete box type arch bridge cantilever casting according to claim 1, is characterized in that: and a second anchor backing plate (10) matched with the vertical rock anchor (11) is arranged at the upper end of the second preformed hole (9) on the upper surface of the bearing platform (4).
5. The light combined anchorage for concrete box type arch bridge cantilever casting according to claim 1, is characterized in that: the vertical rock anchors (11) are scattered at the tail ends and are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221544690.3U CN217517370U (en) | 2022-06-20 | 2022-06-20 | Light combined anchorage for concrete box type arch bridge cantilever pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221544690.3U CN217517370U (en) | 2022-06-20 | 2022-06-20 | Light combined anchorage for concrete box type arch bridge cantilever pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217517370U true CN217517370U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221544690.3U Active CN217517370U (en) | 2022-06-20 | 2022-06-20 | Light combined anchorage for concrete box type arch bridge cantilever pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217517370U (en) |
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2022
- 2022-06-20 CN CN202221544690.3U patent/CN217517370U/en active Active
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