CN210194650U - Assembled cross anchor pier - Google Patents
Assembled cross anchor pier Download PDFInfo
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- CN210194650U CN210194650U CN201920848748.5U CN201920848748U CN210194650U CN 210194650 U CN210194650 U CN 210194650U CN 201920848748 U CN201920848748 U CN 201920848748U CN 210194650 U CN210194650 U CN 210194650U
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Abstract
The utility model relates to an assembled cross anchor pier, which belongs to the field of foundation engineering and comprises a cross concrete beam, wherein the cross concrete beam consists of concrete, upper stress steel bars, lower stress steel bars and stirrups for connecting the upper stress steel bars and the lower stress steel bars, the cross concrete beam is provided with an under-anchor bearing structure at the central crossing part, the under-anchor bearing structure consists of under-anchor bearing steel plates, the anchor concrete and the reinforcing steel bars arranged in the anchor concrete in a crossed manner form the anchor pier, and the anchor pier further comprises reserved anchor holes which sequentially penetrate through the anchor bearing structure and the cross concrete beam from top to bottom, four ends of the cross concrete beam are provided with connecting structures fixedly connected with upper stress steel bars and lower stress steel bars, and adjacent assembled cross anchor piers are connected through the connecting structures. The utility model discloses a cross anchor block is difficult to damage when receiving the load great, and is effectual to the reinforcement of side slope.
Description
Technical Field
The utility model relates to a foundation engineering field especially relates to an assembled cross anchor pier.
Background
Landslide disasters, which are the most important geological disaster type in China, often bury villages, destroy factories and mines, destroy railway and highway traffic, block rivers, damage farmlands and forests and the like, and thus cause serious loss to lives and properties of people and economic construction of China. The prestressed anchor cable and concrete frame beam are one common landslide disaster treating technology, and can combine landslide disease preventing and controlling with slope surface flexible protection and combine deep landslide control with slope surface protection.
However, at present, a field reinforcement pouring form is generally adopted, because the cast-in-place concrete lattice beam needs the working procedures of field formwork support, reinforcement, pouring, maintenance and the like, the construction period is long, the process is complex, and in order to achieve the bearing capacity required by anchoring and locking, the concrete needs to reach the design strength after a period of time, which cannot be adopted in the state of handling emergency situations.
When the distance between the anchoring points is large and the numerical value of the anchoring force is large, the cast-in-place reinforced concrete beam is easy to stretch and crack at the midspan position, or a larger cross section and more reinforcing steel bars are needed to resist bending moment, the prefabricated cross-shaped anchor pier component can improve the performance of the cross section of the beam body, even the cross section is designed in a variable mode, the thickness of the beam body is reduced or stressed reinforcing steel bars are reduced, the material utilization rate can be improved, and therefore the prefabricated cross-shaped anchor pier is more economical in side slope support.
Some slope projects have begun to be supported using prefabricated single cross-shaped anchor blocks. The prefabricated cross-shaped anchor pier is a prefabricated part, can obtain better maintenance conditions and enough maintenance time in the prefabrication process, and can reach the optimal state in terms of stress and modeling. The prefabricated cross-shaped anchor pier can be directly constructed after being transported to the site, the pouring quality of concrete does not need to be specially detected, the construction period is shortened, and the management is simplified. After the prefabricated cross-shaped anchor pier is installed, tensioning and anchoring can be carried out immediately, and the construction safety can be guaranteed.
A single prefabricated cross-shaped reinforced concrete anchor pier is used in the slope management, but the integrity of the anchor pier is not as good as that of a cast-in-place frame beam. Because the cross-shaped anchor piers are independent, the anchor piers are not connected, and the bending moment and shearing force cannot be transmitted. When one of the anchor piers is heavily loaded, it is not possible to transmit the load to the next anchor pier, resulting in damage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to compensate the defect that prior art exists, provides an assembled cross anchor pier, solves receiving the load when great that current prefabricated cross anchor pier exists, and easy damage leads to the not good problem of reinforcement effect of side slope.
The utility model discloses technical scheme as follows: the utility model provides an assembled cross anchor pier, includes the cross concrete beam, the cross concrete beam by the concrete and be located upper portion atress reinforcing bar, lower part atress reinforcing bar and connection in the concrete upper portion atress reinforcing bar constitutes its characterized in that with the stirrup of lower part atress reinforcing bar: lie in central crossing on the cross concrete beam and be provided with bearing structure under the anchor, bearing structure is by bearing steel sheet under the anchor, anchor concrete and be located under the anchor reinforcing bar of cross arrangement in the anchor concrete forms, bearing steel sheet sets up under the anchor the top of cross concrete beam, concrete and reinforcing bar are located under the anchor bearing steel sheet's below still including passing from top to bottom in proper order bearing structure and cross concrete beam's reservation anchor eye under the anchor, four tip of cross concrete beam all be provided with upper portion atress reinforcing bar and lower part atress reinforcing bar fixed connection's connection structure, adjacent pass through between the assembled cross anchor pier connection structure connects.
Furthermore, connection structure include with upper portion atress reinforcing bar and lower part atress reinforcing bar fixed connection's steel sheet, it is adjacent between the assembled cross anchor pier through the steel sheet welding is connected.
Further, connection structure include with upper portion atress reinforcing bar and lower part atress reinforcing bar fixed connection's steel sheet, the last bolt hole that is provided with of steel sheet, it is adjacent between the assembled cross anchor pier through with steel sheet's bolt hole complex bolt and nut are connected.
Further, the connecting steel plate is fixedly connected with the upper stressed steel bar and the lower stressed steel bar through welding.
Furthermore, prestress can be applied to the upper stressed steel bars and the lower stressed steel bars in the crossed concrete beam.
Further, the reinforcing bars arranged crosswise in the concrete under the anchor may be replaced with spiral stirrups.
Furthermore, the reserved anchor hole is perpendicular to the bottom surface of the assembled cross-shaped anchor pier.
Furthermore, the reserved anchor hole is obliquely arranged relative to the bottom surface of the assembled cross-shaped anchor pier.
Further, the cross-sectional areas of the four overhanging beams of the crisscross concrete beam are gradually reduced toward the end portions thereof along the central intersection of the crisscross concrete beam.
The beneficial effects of the utility model reside in that:
(1) the anchor piers are connected through the connecting structure, bending moment shearing force can be transmitted, the plurality of cross-shaped anchor piers form a slope reinforcing system which is good in integrity and capable of redistributing internal force, and the slope reinforcing system is not easy to damage even if being subjected to large load and is good in reinforcing effect.
(2) In the aspect of safety, the bearing structure under the anchor is a prefabricated reinforced concrete member, so that the integrity and the stability are good, and the defect of unstable cast-in-place quality is avoided.
(3) In the manufacturing process, the prefabricated anchor pier is directly transported to a construction site from a factory, so that the complex site manufacturing process is avoided, the construction speed is accelerated, and the construction period is shortened.
(4) In economic benefit, the overhanging beam of the prefabricated anchor pier can adopt a variable cross-section design, so that the used raw materials are less, and the prefabricated anchor pier has good economic benefit.
Drawings
Fig. 1 is a perspective view of the assembled cross-shaped anchor block of the present invention.
Fig. 2 is a front sectional view of the assembled cross-shaped anchor pier of the utility model.
Wherein, 11, the anchorage device; 12-reserving anchor holes; 13-anchor rod; 2-an anchor lower bearing structure; 21-anchoring a bearing steel plate; 22-reinforcing steel bars; 23-anchoring concrete; 3-a cross concrete beam; 31-concrete; 32-upper stressed steel bars; 33-stirrup; 34-lower stressed steel bars; 4-a linking structure; 41-connecting steel plates; 42-bolt hole; 43-bolt; 44-a nut; and 5, slope.
Detailed Description
The following provides a brief description of the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1-2, an assembled cross-shaped anchor pier comprises a cross-shaped concrete beam 3, wherein the cross-shaped concrete beam 3 is composed of concrete 31, upper stressed steel bars 32 and lower stressed steel bars 34 which are positioned in the concrete 31, and stirrups 33 which connect the upper stressed steel bars 32 and the lower stressed steel bars 34, an anchor bearing structure 2 is arranged at a central crossing position on the cross-shaped concrete beam 3, the anchor bearing structure 2 is composed of an anchor bearing steel plate 21, anchor concrete 23 and crossed reinforcing steel bars 22 which are positioned in the anchor bearing concrete 23, the anchor bearing steel plate 21 is arranged at the top of the cross-shaped concrete beam 3, the anchor concrete 23 and the reinforcing steel bars 22 are positioned below the anchor bearing steel plate 21, and the anchor pier further comprises reserved anchor holes 12 which sequentially penetrate the anchor bearing structure 2 and the cross-shaped concrete beam 3 from top to bottom, four tip of cross concrete beam 3 all be provided with upper portion atress reinforcing bar 32 and lower part atress reinforcing bar 34 fixed connection's connection structure 4, adjacent pass through between the assembled cross anchor pier connection structure 4 connects.
The connection mode between the adjacent assembled cross-shaped anchor piers is optional but not limited to: connection structure 4 include with upper portion atress reinforcing bar 32 and lower part atress reinforcing bar 34 fixed connection's steel sheet 41, adjacent between the assembled cross anchor pier through steel sheet 41 welds and connects.
The connection mode between adjacent assembled cross anchor piers can also be as follows: connection structure 4 include with upper portion atress reinforcing bar 32 and lower part atress reinforcing bar 34 fixed connection's connecting steel plate 41, be provided with bolt hole 42 on the connecting steel plate 41, it is adjacent between the assembled cross anchor pier through with connecting steel plate 41's bolt hole 42 complex bolt 43 and nut 44 are connected.
In order to facilitate the connection of the adjacent assembled cross-shaped anchor piers, a height difference exists between the connecting steel plates 41 of the two opposite connecting structures 4 on the cross-shaped concrete beam 3, and the bottom surface of one connecting steel plate 41 is preferably the same as the top surface of the other connecting steel plate 41.
The connection mode of the connecting steel plate 41 and the upper stressed steel bar 32 and the lower stressed steel bar 34 can be selected as follows: the connecting steel plate 41 is fixedly connected with the upper stress reinforcement 32 and the lower stress reinforcement 34 by welding.
In order to improve the strength of the crisscross concrete beam 3, the upper load-receiving reinforcement 32 and the lower load-receiving reinforcement 34 in the crisscross concrete beam 3 may be pre-stressed.
The reinforcing bars 22 arranged crosswise in the concrete under anchor 23 may be replaced with helical stirrups.
The reserved anchor hole 12 may be arranged in the following manner: the reserved anchor hole 12 is perpendicular to the bottom surface of the assembled cross-shaped anchor pier, or the reserved anchor hole 12 is obliquely arranged relative to the bottom surface of the assembled cross-shaped anchor pier.
The cross-sectional areas of the four overhanging beams of the crisscross concrete beam 3 are gradually reduced toward the ends thereof along the central intersection of the crisscross concrete beam. By adopting the variable cross-section design, the use of raw materials can be reduced, and the economic benefit is improved.
The construction method of the assembled cross-shaped anchor pier comprises the following steps:
A. firstly, positioning and constructing an anchor rod 13 on the side slope 5;
B. manufacturing the assembled cross-shaped anchor pier in a prefabrication factory;
C. transporting the prefabricated assembly type cross-shaped anchor pier to a slope site, and well hoisting and aligning to ensure that the anchor rod 13 penetrates through the reserved anchor hole 12;
D. tensioning the anchor rod 13 to prestress and locking by using an anchorage device 11;
E. and connecting the adjacent assembled cross-shaped anchor piers through the connecting structures 4.
The present invention is not limited to the above-described specific embodiments, and various modifications and changes are possible. Any modification, equivalent replacement, improvement and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of protection of the present invention.
Claims (9)
1. The utility model provides an assembled cross anchor pier, includes cross concrete beam (3), cross concrete beam (3) are by concrete (31) and be located upper portion atress reinforcing bar (32), lower part atress reinforcing bar (34) and connection in concrete (31) upper portion atress reinforcing bar (32) are constituteed with stirrup (33) of lower part atress reinforcing bar (34), its characterized in that: the cross concrete beam (3) is provided with an under-anchor bearing structure (2) at the central intersection, the under-anchor bearing structure (2) consists of an under-anchor bearing steel plate (21), under-anchor concrete (23) and reinforcing steel bars (22) which are arranged in the under-anchor concrete (23) in a cross way, the under-anchor bearing steel plate (21) is arranged at the top of the cross concrete beam (3), the under-anchor concrete (23) and the reinforcing steel bars (22) are arranged below the under-anchor bearing steel plate (21), the cross concrete beam further comprises reserved anchor holes (12) which sequentially penetrate through the under-anchor bearing structure (2) and the cross concrete beam (3) from top to bottom, and four end parts of the cross concrete beam (3) are respectively provided with a connecting structure (4) fixedly connected with the upper stress steel bars (32) and the lower stress steel bars (34), and the adjacent assembled cross-shaped anchor piers are connected through the connecting structure (4).
2. The assembled cross-shaped anchor block according to claim 1, wherein the connecting structure (4) comprises connecting steel plates (41) fixedly connected with the upper stress steel bars (32) and the lower stress steel bars (34), and the adjacent assembled cross-shaped anchor blocks are connected through welding of the connecting steel plates (41).
3. The assembly type cross-shaped anchor block according to claim 1, wherein the connecting structure (4) comprises a connecting steel plate (41) fixedly connected with the upper stress steel bar (32) and the lower stress steel bar (34), the connecting steel plate (41) is provided with a bolt hole (42), and the adjacent assembly type cross-shaped anchor blocks are connected through a bolt (43) and a nut (44) matched with the bolt hole (42) of the connecting steel plate (41).
4. Assembled cruciform anchor block according to claim 2 or 3, wherein said connecting steel plates (41) are fixedly connected to said upper load-bearing bars (32) and lower load-bearing bars (34) by welding.
5. An assembled cruciform anchor block according to claim 1, wherein the upper load carrying rebars (32) and the lower load carrying rebars (34) in the cruciform concrete beam (3) are prestressed.
6. Fabricated cruciform anchor block according to claim 1, wherein the reinforcing bars (22) arranged crosswise in the concrete (23) under the anchor can be replaced by helical stirrups.
7. The assembly type cross-shaped anchor block according to claim 1, wherein the reserved anchor hole (12) is perpendicular to the bottom surface of the assembly type cross-shaped anchor block.
8. The fabricated cross-shaped anchor block according to claim 1, wherein the reserved anchor hole (12) is obliquely arranged relative to the bottom surface of the fabricated cross-shaped anchor block.
9. An assembled cruciform anchor pier according to claim 1, characterized in that the cross-sectional area of the four outriggers of the cruciform concrete beam (3) decreases progressively along the central intersection of the cruciform concrete beam (3) towards its ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848748.5U CN210194650U (en) | 2019-06-06 | 2019-06-06 | Assembled cross anchor pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848748.5U CN210194650U (en) | 2019-06-06 | 2019-06-06 | Assembled cross anchor pier |
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| Publication Number | Publication Date |
|---|---|
| CN210194650U true CN210194650U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920848748.5U Active CN210194650U (en) | 2019-06-06 | 2019-06-06 | Assembled cross anchor pier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080256A (en) * | 2019-06-06 | 2019-08-02 | 福建工程学院 | A kind of assembled cross anchor pier and its construction method |
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2019
- 2019-06-06 CN CN201920848748.5U patent/CN210194650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080256A (en) * | 2019-06-06 | 2019-08-02 | 福建工程学院 | A kind of assembled cross anchor pier and its construction method |
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