CN213653202U - Novel gravity type anchorage - Google Patents
Novel gravity type anchorage Download PDFInfo
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- CN213653202U CN213653202U CN202021898784.1U CN202021898784U CN213653202U CN 213653202 U CN213653202 U CN 213653202U CN 202021898784 U CN202021898784 U CN 202021898784U CN 213653202 U CN213653202 U CN 213653202U
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Abstract
The utility model provides a novel gravity type anchorage, including anchor block, loose cable saddle buttress and basis, foreanchor room and back anchor room, wherein, the back anchor room is connected with the rear end of anchor block, and the foreanchor room is connected with the front end of anchor block, and loose cable saddle buttress and basis are connected with the front end of foreanchor room, and foreanchor room, loose cable saddle buttress and anchor block form the space atress component of a complete three member Y-shaped structures. The utility model discloses a novel gravity type anchorage mainly receives the main cable strand pulling force of prestressed anchorage system transmission, and loose cable saddle buttress mainly bears by the main cable pressure of loosing the cable saddle transmission, forms the space atress component of a complete three-member Y-shaped structure by foreanchor room, loose cable saddle buttress and anchor block, makes the utility model discloses a gravity type anchorage has the advantage that the main cable is stable, the pulling force is concentrated, has solved the dead weight of current gravity type anchorage and has crossed big scheduling problem, possesses anti-skidding, antidumping ability simultaneously.
Description
Technical Field
The utility model relates to an anchorage structure especially relates to a novel gravity type anchorage.
Background
The suspension bridge is one of the main forms of the existing large-span bridge, and a main bearing member of the suspension bridge is anchored on an anchorage.
When existing anchorage foundation pits are excavated, layered excavation is carried out from top to bottom along contour lines, gravity type anchor block concrete is poured after excavation, and water is introduced for cooling after concrete sets finally. Therefore, the existing gravity type anchorage has the problems of large gravity, large concrete volume, unstable main cable, concentrated pulling force, unattractive landscape and the like.
Disclosure of Invention
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that there is big, the concrete volume of gravity big, main push-towing rope is unstable, the pulling force is concentrated and the view is pleasing to the eye scheduling problem in current gravity type anchorage.
In order to achieve the above object, the utility model provides a novel gravity type anchorage, including anchor block, loose cable saddle buttress and basis, front anchor room and back anchor room, wherein, the back anchor room is connected with the rear end of anchor block, and the front anchor room is connected with the front end of anchor block, and loose cable saddle buttress and basis are connected with the front end of front anchor room, and front anchor room, loose cable saddle buttress and anchor block form the space atress component of a complete three member Y-shaped structures.
Furthermore, the anchor foundation is an anchor block foundation and is used for supporting the whole anchor.
Furthermore, the anchor foundation is provided with a four-stage step tooth sill structure, and each stage of step is 3.5m high.
Furthermore, four stages of step tooth ridges are arranged on the bottom surface of the anchor block, and the height of each stage of step is 2.5m, 3.5m and 3.5m from bottom to top. The four-level step tooth sill on the bottom surface of the anchor block is matched with the four-level step tooth sill on the anchor foundation.
Further, the anchor block is of a solid structure, the top plate, the bottom plate, the front wall and the side walls of the front anchor chamber are of plate-type structures, wherein the thickness of the top plate is 0.5m, and the thickness of the bottom plate, the front wall and the side walls is 0.8 m.
Furthermore, the cable saddle-dispersed buttress and the foundation comprise a cable saddle-dispersed buttress and a cable saddle-dispersed buttress foundation, the cable saddle-dispersed buttress and the cable saddle-dispersed buttress foundation are connected, the cable saddle-dispersed buttress is of a box-shaped structure, the thickness of the top plate and the bottom plate is 1m, and the thickness of the web plate is 0.8 m.
Furthermore, the rear anchor chamber is a chamber formed by the rear anchor surface of the anchor block and the rear side wall plate of the anchor block and is used for tensioning the main cable of the suspension bridge.
Furthermore, the bottom surface of the anchor block is a part contacting the foundation, the plane size of the bottom surface of the anchor block is larger than that of the anchor block and smaller than those of the front anchor chamber and the cable saddle buttress, and the thickness of the anchor block is set to be 8-22 m.
Technical effects
The utility model discloses a novel gravity type anchorage mainly receives the main cable strand pulling force of prestressed anchorage system transmission, and loose cable saddle buttress mainly bears by the main cable pressure of loosing the cable saddle transmission, forms the space atress component of a complete three-member Y-shaped structure by foreanchor room, loose cable saddle buttress and anchor block, makes the utility model discloses a gravity type anchorage has the advantage that the main cable is stable, the pulling force is concentrated, has solved the dead weight of current gravity type anchorage and has crossed big scheduling problem, possesses anti-skidding, antidumping ability simultaneously.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic view of a novel gravity type anchorage of a preferred embodiment of the present invention;
fig. 2 is a top view of a novel gravity type tie back according to a preferred embodiment of the present invention.
Detailed Description
As shown in fig. 1, a novel gravity type anchorage comprises an anchor block 1, a cable saddle buttress 3, a foundation 2, a front anchor chamber and a rear anchor chamber, wherein the rear anchor chamber 11 is connected with the rear end of the anchor block 1, the front anchor chamber 5 is connected with the front end of the anchor block 1, the cable saddle buttress 3 and the foundation 2 are connected with the front end of the front anchor chamber 5, specifically, the rear of the anchor block 1 is called the rear anchor chamber 11, and the front of the anchor block 1 is called the front anchor chamber 5. The front anchor chamber 5 is forward to form the saddle buttress 3. The front anchor surface and the scattered cable saddle buttress 3 form a front anchor chamber 5, and the cavity part behind the rear anchor surface is a rear anchor chamber 11. The anchor block 1 mainly bears the tension of a main cable strand transmitted by a prestressed anchoring system, the cable saddle support pier 3 mainly bears the pressure of the main cable transmitted by a cable saddle, and the front anchor chamber, the cable saddle support pier, the foundation and the anchor block form a complete three-rod space stress component with a herringbone structure.
Compared with the same solid (gravity type) structure, the rod system adopting the embodiment can greatly reduce the material consumption, and fully exert the material strength so as to reduce the manufacturing cost.
The novel gravity type anchorage of this embodiment still includes anchorage basis, and anchorage basis is the basis of anchor block for support whole anchorage. The anchor foundation is provided with a four-stage step tooth sill structure, and each stage of step is 3.5m high. The bottom surface of the anchor block is provided with four stages of step tooth ridges, and the height of each stage of step from bottom to top is 2.5m, 3.5m and 3.5 m. The four-level step tooth sill on the bottom surface of the anchor block is matched with the four-level step tooth sill on the anchor foundation. Through the level four step tooth bank of the bottom surface of anchor block and the level four step tooth bank on anchor basis mutually support, can make a novel gravity type anchor of this embodiment possess the effect of anti-skidding and antidumping. The bottom surface of the anchor block is a part contacting with a foundation, the plane size of the bottom surface of the anchor block is larger than that of the anchor block and smaller than that of the front anchor chamber and the cable saddle buttress, and the thickness of the anchor block is set to be 8-22 m. In this embodiment, the plane size of the anchor foundation is 53.6m (transverse direction) × 59m (forward direction), and the total height is 45.6 m.
In this embodiment, the anchor block is of a solid structure, and the top plate 5, the bottom plate 4, the front wall 7 and the side walls of the front anchor chamber are of plate-type structures, wherein the thickness of the top plate is 0.5m, and the thickness of the bottom plate 4, the front wall 7 and the side walls is 0.8 m. The rear anchor chamber is a chamber formed by the rear anchor surface of the anchor block and the rear side wall plate of the anchor block and is used for tensioning the main cable of the suspension bridge. The rear anchor chamber is provided with step-shaped pedestrian stairs which are convenient for people to go in and out of the rear anchor chamber.
In this embodiment, the saddle-type buttress and the foundation include saddle-type buttress 3 and saddle-type buttress foundation 2, saddle-type buttress 3 and saddle-type buttress foundation 2 are connected, saddle-type buttress 3 is box-shaped structure, wherein the thickness of top plate and bottom plate is 1m, and the thickness of web is 0.8 m. The cable saddle buttress is mainly used for supporting radial force generated by the corner of the suspension bridge. In the embodiment, a box-shaped structure is adopted, and solid or other various shapes can be adopted to meet the stress requirement.
All parts of the novel gravity type anchorage of this embodiment are all connected through the concrete.
The novel gravity type anchorage of the embodiment is a space stress component of a complete three-rod herringbone structure formed by a front anchor chamber, a cable saddle buttress and an anchor block, the anchor block bears the tension of a main cable strand transmitted by a prestressed anchoring system, the cable saddle buttress bears the pressure of the main cable transmitted by a cable saddle, the main cable is stable and the tension is concentrated, the material consumption is greatly reduced, and the material strength is fully exerted, so that the manufacturing cost is reduced.
As shown in fig. 2, an anchorage buttress, a front anchor chamber and an anchor block are respectively arranged at the left side and the right side above the anchorage for anchoring the main cables at the left side and the right side. The anchor foundation is arranged below the concrete foundation, and the plane size is 53.6m (transverse direction) multiplied by 59m (forward direction). The gravity anchor is large in size, so that the anchor block and the cable saddle buttress foundation are divided into four blocks for pouring in order to avoid shrinkage and temperature cracks after pouring construction of the anchor block and the cable saddle buttress foundation, a post-pouring section of 2m is arranged between the anchor block and the cable saddle buttress foundation, and the post-pouring section is made of micro-expansion concrete. 8 and 9 are anchor longitudinal post-cast strips, and 10 are anchor transverse post-cast strips.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a novel gravity type anchorage, its characterized in that, includes anchor block, loose cable saddle buttress and basis, foreanchor room and back anchor room, wherein, back anchor room with the rear end of anchor block is connected, the foreanchor room with the front end of anchor block is connected, loose cable saddle buttress and basis with the front end of foreanchor room is connected, the foreanchor room loose cable saddle buttress and basis with the space atress component of a complete three member Y-shaped structures is formed to the anchor block.
2. A new gravity type anchorage as claimed in claim 1, further comprising an anchorage foundation, which is the foundation of the anchorage block, for supporting the entire anchorage.
3. The novel gravity type anchorage of claim 2, wherein the anchorage foundation is provided with a four-stage step tooth sill structure, and the height of each stage of step is 3.5 m.
4. A novel gravity type anchorage as claimed in claim 3, wherein the bottom surface of the anchorage block is provided with four steps of ridge teeth, and the height of each step is 2.5m, 3.5m and 3.5m from bottom to top.
5. A novel gravity type anchorage as claimed in claim 1, wherein the anchor block is of a solid structure, and the top plate, the bottom plate, the front wall and the side walls of the front anchorage chamber are of a plate type structure, wherein the thickness of the top plate is 0.5m, and the thickness of the bottom plate, the front wall and the side walls is 0.8 m.
6. A novel gravity anchor as claimed in claim 1 wherein said cable saddle piers and foundations include cable saddle piers and cable saddle pier foundations, said cable saddle piers and said cable saddle pier foundations are connected, said cable saddle piers are box-shaped structures, wherein the top and bottom plates have a thickness of 1m and the web plate has a thickness of 0.8 m.
7. The novel gravity type anchorage of claim 1, wherein the rear anchor chamber is a chamber formed by the rear anchor surface of the anchorage block and the rear side wall plate of the anchorage block, and is used for tensioning the main cable of the suspension bridge.
8. The novel gravity type anchorage of claim 2, wherein the bottom surface of the anchor block is a part contacting the foundation, the plane size of the bottom surface of the anchor block is larger than that of the anchor block and smaller than that of the front anchor chamber and the cable saddle buttress, and the thickness of the anchorage block is set to be 8-22 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898784.1U CN213653202U (en) | 2020-09-03 | 2020-09-03 | Novel gravity type anchorage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898784.1U CN213653202U (en) | 2020-09-03 | 2020-09-03 | Novel gravity type anchorage |
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| CN213653202U true CN213653202U (en) | 2021-07-09 |
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| CN202021898784.1U Active CN213653202U (en) | 2020-09-03 | 2020-09-03 | Novel gravity type anchorage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585236A (en) * | 2021-07-14 | 2021-11-02 | 中铁大桥勘测设计院集团有限公司 | Deep foundation pit anchorage and construction method |
| CN114855615A (en) * | 2022-06-21 | 2022-08-05 | 贵州路桥集团有限公司 | Bank anchorage and construction process thereof |
-
2020
- 2020-09-03 CN CN202021898784.1U patent/CN213653202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585236A (en) * | 2021-07-14 | 2021-11-02 | 中铁大桥勘测设计院集团有限公司 | Deep foundation pit anchorage and construction method |
| CN114855615A (en) * | 2022-06-21 | 2022-08-05 | 贵州路桥集团有限公司 | Bank anchorage and construction process thereof |
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