CN112240001B - Prestressed anchorage utensil is used in public road bridge roof beam construction - Google Patents
Prestressed anchorage utensil is used in public road bridge roof beam construction Download PDFInfo
- Publication number
- CN112240001B CN112240001B CN202011324785.XA CN202011324785A CN112240001B CN 112240001 B CN112240001 B CN 112240001B CN 202011324785 A CN202011324785 A CN 202011324785A CN 112240001 B CN112240001 B CN 112240001B
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- sleeve
- wall
- baffle
- sliding sleeve
- left end
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a prestressed anchor for highway bridge construction, which comprises a steel strand, wherein a connecting mechanism is sleeved on the outer side of the steel strand, the connecting mechanism comprises a first sleeve, a corrugated pipe, a baffle, a chock block and a second sleeve, the corrugated pipe is arranged on the right side of the first sleeve, the right end of the first sleeve is fixedly connected with the left end of the corrugated pipe, the baffle is arranged on the left side of the first sleeve, the left end of the first sleeve is fixedly connected with the right side of the baffle, the chock block is arranged on the left side of the baffle, the left side of the baffle is fixedly connected with the right end of the chock block, the second sleeve is arranged on the left side of the chock block, and the left end of the chock block is fixedly connected with the right end of the second sleeve. This prestressed anchorage utensil is used in public road bridge roof beam construction through the mode of multistage locking to effectively guarantee the locking force, with the reduction fault rate, and then effectively prolong whole mechanism's life, apparent improvement the practicality, application method is simple, the facilitate promotion.
Description
Technical Field
The invention relates to the technical field of pre-stressed anchorage devices for highway bridge construction, in particular to a pre-stressed anchorage device for highway bridge construction.
Background
The prestressed anchorage is suitable for anchorage for prestressed concrete stretching in engineering construction. Generally, the method is often used in bridge construction, the positioning is carried out in advance, then concrete is poured and buried at two ends of the concrete, namely two ends of a corrugated pipe, and the end faces are arranged for the stabilizing effect of a jack during tensioning. The existing pre-stressed anchor for highway bridge construction is usually locked by a single stage, so that the limitation is high, and the practicability is general.
Disclosure of Invention
The invention aims to provide a prestressed anchorage device for highway bridge construction, which aims to solve the problems that the existing prestressed anchorage device for highway bridge construction in the background art is usually locked by a single stage, so that the limitation is high and the practicability is general.
In order to achieve the purpose, the invention provides the following technical scheme: a pre-stressed anchor for highway bridge construction comprises a steel strand, wherein a connecting mechanism is sleeved on the outer side of the steel strand;
the connecting mechanism comprises a first sleeve, a corrugated pipe, a baffle, a chock block and a second sleeve;
the utility model discloses a stop block, including first sheathed tube, first sheathed tube right side is equipped with the bellows, the left end rigid coupling of first sheathed tube right-hand member and bellows, first sheathed tube left side is equipped with the baffle, the left end of first sheathed tube and the right side looks rigid coupling of baffle, the left side of baffle is equipped with the chock, the left side of baffle and the right-hand member looks rigid coupling of chock, the left side of chock is equipped with the second sleeve, the left end and the right-hand member looks rigid coupling of second sheathed tube of chock.
Preferably, the left end of the chock block is connected with a sliding mechanism;
the sliding mechanism comprises a third sleeve, a first connecting ring, a first sliding sleeve and a second sliding sleeve;
the right side of the third sleeve pipe is laminated with the left side of the baffle plate, the right end of the third sleeve pipe is fixedly connected with the baffle plate through a bolt, a first connecting ring is arranged on the outer side of the third sleeve pipe, the left end of the outer wall of the third sleeve pipe is fixedly connected with the inner wall of the first connecting ring, a first sliding sleeve is arranged inside the third sleeve pipe, the inner wall of the third sleeve pipe is sleeved with the outer wall of the first sliding sleeve, a second sliding sleeve is arranged on the left side of the first sliding sleeve, the left end of the first sliding sleeve is fixedly connected with the right end of the second sliding sleeve, and the inner wall of the first sliding sleeve and the inner wall of the second sliding sleeve are sleeved with the outer wall of the second sleeve pipe.
Preferably, the left end of the second sleeve is provided with a locking mechanism;
the locking mechanism comprises a lantern ring, a through hole, an end head, a tapered hole and a tapered sleeve;
the outer wall of the lantern ring is cup jointed with the left end of the second sliding sleeve, a plurality of through holes have evenly been seted up to the lantern ring inside, the left side of the lantern ring is equipped with the end, the right side of end is laminated with the left side of the lantern ring mutually, the outer wall of end is cup jointed with the left end of second sliding sleeve mutually, a plurality of bell mouth has evenly been seted up on the end, and is a plurality of the bell mouth cup joints with a plurality of toper cover respectively mutually, and is a plurality of the toper cover closely laminates with a plurality of bell mouth.
Preferably, the left end of the end head is provided with a pressing mechanism;
the pressing mechanism comprises a sleeve, a second connecting ring and a bolt;
the inner wall of cover shell and the outer wall of end and the outer wall of second sliding sleeve slip and cup joint, the outside of cover shell is equipped with the second go-between, the right-hand member of cover shell and the inner wall integrated into one piece of second go-between, the second go-between cup joints with a plurality of bolts mutually, and is a plurality of the bolt runs through the left end screw thread of second go-between and third sleeve and links to each other.
Preferably, the outer wall of chock has cup jointed first sealing washer, the outer wall of first sealing washer closely laminates with the sheathed tube inner wall of third, the outer wall cover of first sliding sleeve has the second sealing washer, the outer wall of second sealing washer closely laminates with the sheathed tube inner wall of third, the inner wall cover of first sliding sleeve has the third sealing washer, the inner wall of third sealing washer closely laminates with the outer wall of second sleeve.
Preferably, a plurality of steel strands pass through the casing, the conical sleeve and the lantern ring from left to right in sequence, and the steel strands are bundled under the action of the second sleeve, the plug block, the second sleeve, the first sleeve and the corrugated pipe.
Preferably, the first sleeve is sleeved with a spiral rib.
Compared with the prior art, the invention has the beneficial effects that: the prestressed anchorage device for highway bridge construction effectively ensures the locking force in a multi-stage locking mode, so as to reduce the failure rate, further effectively prolong the service life of the whole mechanism, obviously improve the practicability, and has simple use method and convenient popularization;
the pre-stressed anchor for highway bridge construction is characterized in that a plurality of steel strands are bundled under the action of a first sleeve, a corrugated pipe and a second sleeve through the matching of the first sleeve, the corrugated pipe, a baffle, a chock block and the second sleeve, and the corrugated pipe is adopted to protect the steel strands;
the prestressed anchorage device for highway bridge construction is characterized in that the first sliding sleeve and the second sliding sleeve form a sliding pair with the third sleeve and the second sleeve through the matching of the third sleeve, the first connecting ring, the first sliding sleeve and the second sliding sleeve, and compressed nitrogen in the third sleeve can provide a reaction force under the action of hydraulic pressure to realize locking;
the pre-stressed anchorage device for the construction of the highway bridge locks the steel strand under the action of the tapered sleeve and the tapered hole through the matching of the sleeve ring, the through hole, the end head, the tapered hole and the tapered sleeve, so that the locking of the steel strand is ensured, and the stability of the steel strand is further improved;
this prestressed anchorage utensil is used in public road bridge roof beam construction, through the cooperation of cover shell, second go-between and bolt, further improvement locking strength for the taper sleeve closely laminates with the bell mouth all the time, has realized multistage locking.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the structure of FIG. 1;
FIG. 3 is a schematic view of the collar and taper sleeve configuration of FIG. 1;
FIG. 4 is an enlarged view of the structure at A in FIG. 1;
FIG. 5 is an enlarged view of the structure at B in FIG. 1;
fig. 6 is an enlarged view of the structure at C in fig. 1.
In the figure: 1. the steel strand wires, 2, a connecting mechanism, 201, a first sleeve, 202, a corrugated pipe, 203, a baffle, 204, a chock block, 205, a second sleeve, 3, a sliding mechanism, 301, a third sleeve, 302, a first connecting ring, 303, a first sliding sleeve, 304, a second sliding sleeve, 4, a locking mechanism, 401, a lantern ring, 402, a through hole, 403, an end head, 404, a tapered hole, 405, a tapered sleeve, 5, a pressing mechanism, 501, a casing, 502, a second connecting ring, 503, a bolt, 6, a spiral rib, 7, a first sealing ring, 8, a second sealing ring, 9 and a third sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a pre-stressed anchor for highway bridge construction comprises a steel strand 1, wherein a connecting mechanism 2 is sleeved on the outer side of the steel strand 1; the connection mechanism 2 comprises a first sleeve 201, a bellows 202, a baffle 203, a plug 204 and a second sleeve 205; the right side of the first sleeve 201 is provided with a corrugated pipe 202, the right end of the first sleeve 201 is fixedly connected with the left end of the corrugated pipe 202, the left side of the first sleeve 201 is provided with a baffle 203, the left end of the first sleeve 201 is fixedly connected with the right side of the baffle 203, the left side of the baffle 203 is provided with a plug 204, the left side of the baffle 203 is fixedly connected with the right end of the plug 204, the left side of the plug 204 is provided with a second sleeve 205, and the left end of the plug 204 is fixedly connected with the right end of the second sleeve 205.
The left end of the chock 204 is connected with the sliding mechanism 3; the sliding mechanism 3 comprises a third sleeve 301, a first connecting ring 302, a first sliding sleeve 303 and a second sliding sleeve 304; the right side of third sleeve pipe 301 is laminated with the left side of baffle 203 mutually, the right-hand member of third sleeve pipe 301 passes through bolt and baffle 203 looks rigid coupling, the outside of third sleeve pipe 301 is equipped with first connecting ring 302, the outer wall left end and the first connecting ring 302 inner wall looks rigid coupling of third sleeve pipe 301, the inside of third sleeve pipe 301 is equipped with first sliding sleeve 303, the inner wall and the outer wall of first sliding sleeve 303 of third sleeve pipe 301 cup joint mutually, the left side of first sliding sleeve 303 is equipped with second sliding sleeve 204, the left end of first sliding sleeve 303 and the right-hand member looks rigid coupling of second sliding sleeve 304, the inner wall of first sliding sleeve 303 and the inner wall of second sliding sleeve 304 cup joint mutually with the outer wall of second sleeve pipe 205. The third sleeve 301 is filled with compressed nitrogen.
The left end of the second sleeve 205 is provided with a locking mechanism 4; the locking mechanism 4 comprises a collar 401, a through hole 402, a head 403, a tapered hole 404 and a tapered sleeve 405; the outer wall of lantern ring 401 cup joints with the left end of second sliding sleeve 304, and a plurality of through-holes 402 have evenly been seted up to lantern ring 401, and the left side of lantern ring 401 is equipped with end 403, and the right side of end 403 is laminated with the left side of lantern ring 401 mutually, and the outer wall of end 403 cup joints with the left end of second sliding sleeve 304, has evenly seted up a plurality of bell mouth 404 on the end 403, and a plurality of bell mouth 404 cup joint with a plurality of toper cover 405 respectively mutually, and a plurality of toper cover 405 closely laminate with a plurality of bell mouth 404. The conical surface of the conical sleeve 405 is provided with a plurality of through grooves along the axial direction.
The left end of the end 403 is provided with a pressing mechanism 5; the pressing mechanism 5 comprises a sleeve 501, a second connecting ring 502 and a bolt 503; the inner wall of the casing 501, the outer wall of the end head 403 and the outer wall of the second sliding sleeve 304 are slidably sleeved, a second connecting ring 502 is arranged on the outer side of the casing 501, the right end of the casing 501 and the inner wall of the second connecting ring 502 are integrally formed, the second connecting ring 502 is sleeved with a plurality of bolts 503, and the plurality of bolts 503 penetrate through the second connecting ring 502 to be connected with the left end of the third sleeve 301 in a threaded manner.
The outer wall of chock 204 has cup jointed first sealing washer 7, and the outer wall of first sealing washer 7 closely laminates with the inner wall of third sleeve pipe 301, and the outer wall cover of first sliding sleeve 303 has second sealing washer 8, and the outer wall of second sealing washer 8 closely laminates with the inner wall of third sleeve pipe 301, and the inner wall cover of first sliding sleeve 303 has third sealing washer 9, and the inner wall of third sealing washer 9 closely laminates with the outer wall of second sleeve pipe 205. The steel strands 1 sequentially pass through the casing 501, the conical sleeve 405 and the lantern ring 401 from left to right, and the steel strands 1 are bundled under the action of the second sleeve 205, the plug block 204, the second sleeve 205, the first sleeve 201 and the corrugated pipe 202. The outside of the first sleeve 201 is sleeved with a spiral rib 6.
When the locking device is used, the steel stranded rope sequentially passes through the sleeve 501, the conical sleeve 405, the conical hole 404 and the sleeve ring 401, the second sleeve 205, the plug block 204, the baffle plate 203, the first sleeve 201 and the corrugated pipe 202 are bundled, the steel stranded rope 1 is pulled rightwards, the steel stranded rope 1 drives the conical sleeve 405 to be tightly attached to the conical hole 404, the inclined plane part of the conical sleeve 405 is tightly attached to the steel stranded rope 1, so that the steel stranded rope 1 is locked, the steel stranded rope 1 is continuously pulled, the conical sleeve 405 pushes the tip 403 to move rightwards, the second sliding sleeve 304 and the first sliding sleeve 303 are pushed to move rightwards in the third sleeve 301 along the second sleeve 205, compressed nitrogen in the third sleeve 301 is compressed, the conical sleeve 405 is locked again, the second connecting ring 502 is connected with the third sleeve 301 through the bolt 503, the sleeve 501 is tightly attached to the plurality of conical sleeves 405, and the conical sleeve 405 is further locked, so as to ensure the locking strength and prolong the service life.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a highway is prestressed anchorage utensil for bridge construction, includes steel strand wires (1), its characterized in that: the outer side of the steel strand (1) is sleeved with a connecting mechanism (2), the connecting mechanism (2) comprises a first sleeve (201), a corrugated pipe (202), a baffle (203), a plug block (204) and a second sleeve (205), the right side of the first sleeve (201) is provided with the corrugated pipe (202), the right end of the first sleeve (201) is fixedly connected with the left end of the corrugated pipe (202), the left side of the first sleeve (201) is provided with the baffle (203), the left end of the first sleeve (201) is fixedly connected with the right side of the baffle (203), the left side of the baffle (203) is provided with the plug block (204), the left side of the baffle (203) is fixedly connected with the right end of the plug block (204), the left side of the plug block (204) is provided with the second sleeve (205), and the left end of the plug block (204) is fixedly connected with the right end of the second sleeve (205); the left end of the chock block (204) is connected with the sliding mechanism (3); the sliding mechanism (3) comprises a third sleeve (301), a first connecting ring (302), a first sliding sleeve (303) and a second sliding sleeve (304); the right side of the third sleeve (301) is attached to the left side of the baffle (203), the right end of the third sleeve (301) is fixedly connected with the baffle (203) through a bolt, a first connecting ring (302) is arranged on the outer side of the third sleeve (301), the left end of the outer wall of the third sleeve (301) is fixedly connected with the inner wall of the first connecting ring (302), a first sliding sleeve (303) is arranged inside the third sleeve (301), the inner wall of the third sleeve (301) is sleeved with the outer wall of the first sliding sleeve (303), a second sliding sleeve (304) is arranged on the left side of the first sliding sleeve (303), the left end of the first sliding sleeve (303) is fixedly connected with the right end of the second sliding sleeve (304), and the inner wall of the first sliding sleeve (303) and the inner wall of the second sliding sleeve (304) are sleeved with the outer wall of the second sleeve (205); the left end of the second sleeve (205) is provided with a locking mechanism (4); the locking mechanism (4) comprises a lantern ring (401), a through hole (402), a head (403), a tapered hole (404) and a tapered sleeve (405); the outer wall of the lantern ring (401) is sleeved with the left end of the second sliding sleeve (304), a plurality of through holes (402) are uniformly formed in the lantern ring (401), an end head (403) is arranged on the left side of the lantern ring (401), the right side of the end head (403) is attached to the left side of the lantern ring (401), the outer wall of the end head (403) is sleeved with the left end of the second sliding sleeve (304), a plurality of tapered holes (404) are uniformly formed in the end head (403), the tapered holes (404) are respectively sleeved with a plurality of tapered sleeves (405), and the tapered sleeves (405) are tightly attached to the tapered holes (404); a pressing mechanism (5) is arranged at the left end of the end head (403); the pressing mechanism (5) comprises a sleeve (501), a second connecting ring (502) and a bolt (503); the inner wall of the casing (501) is slidably sleeved with the outer wall of the end head (403) and the outer wall of the second sliding sleeve (304), a second connecting ring (502) is arranged on the outer side of the casing (501), the right end of the casing (501) is integrally formed with the inner wall of the second connecting ring (502), the second connecting ring (502) is sleeved with a plurality of bolts (503), and the bolts (503) penetrate through the second connecting ring (502) and are connected with the left end of the third sleeve (301) in a threaded mode.
2. The pre-stressed anchorage device for highway bridge construction according to claim 1, wherein: the outer wall of chock (204) has cup jointed first sealing washer (7), the outer wall of first sealing washer (7) closely laminates with the inner wall of third sleeve pipe (301), the outer wall cover of first sliding sleeve (303) has second sealing washer (8), the outer wall of second sealing washer (8) closely laminates with the inner wall of third sleeve pipe (301), the inner wall cover of first sliding sleeve (303) has third sealing washer (9), the inner wall of third sealing washer (9) closely laminates with the outer wall of second sleeve pipe (205).
3. The pre-stressed anchorage device for highway bridge construction according to claim 1, wherein: the steel strand wires (1) sequentially penetrate through the casing (501), the conical sleeve (405) and the sleeve ring (401) from left to right, and the steel strand wires (1) are bundled under the action of the second sleeve (205), the chock block (204), the second sleeve (205), the first sleeve (201) and the corrugated pipe (202).
4. The pre-stressed anchorage device for highway bridge construction according to claim 1, wherein: the outer side of the first sleeve (201) is sleeved with a spiral rib (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324785.XA CN112240001B (en) | 2020-11-23 | 2020-11-23 | Prestressed anchorage utensil is used in public road bridge roof beam construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324785.XA CN112240001B (en) | 2020-11-23 | 2020-11-23 | Prestressed anchorage utensil is used in public road bridge roof beam construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112240001A CN112240001A (en) | 2021-01-19 |
| CN112240001B true CN112240001B (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011324785.XA Active CN112240001B (en) | 2020-11-23 | 2020-11-23 | Prestressed anchorage utensil is used in public road bridge roof beam construction |
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| CN (1) | CN112240001B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7803640L (en) * | 1978-03-31 | 1979-10-01 | Ludvigson Birger | DEVICE FOR STRETCHING A REINFORCEMENT STRING |
| CN206570698U (en) * | 2017-03-08 | 2017-10-20 | 崔玉宝 | A kind of highway bridge construction prestressed anchor |
| CN206916629U (en) * | 2017-07-05 | 2018-01-23 | 重庆交通大学 | A kind of bridge building operations prestressed anchor |
| CN211646009U (en) * | 2019-11-29 | 2020-10-09 | 榆林市长盛集团路桥工程建设有限公司 | Prestressed anchorage utensil is used in bridge construction |
| CN211547348U (en) * | 2019-12-26 | 2020-09-22 | 天津鹏旭预应力机械有限公司 | Prestressed anchorage utensil is used in public road bridge roof beam construction |
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2020
- 2020-11-23 CN CN202011324785.XA patent/CN112240001B/en active Active
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| CN112240001A (en) | 2021-01-19 |
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Effective date of registration: 20220614 Address after: 037000 No. 7, Yongjun West Road, Xinhua Street, Pingcheng District, Datong City, Shanxi Province Applicant after: Shanxi road and Bridge Fourth Engineering Co.,Ltd. Applicant after: Shanxi road and Bridge Construction Group Co., Ltd Address before: 342300 55 Changzheng Avenue, Yudu County, Ganzhou City, Jiangxi Province Applicant before: Hua Guanlan |
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