CN113982194A - Anchor for flat prestressed tendon - Google Patents
Anchor for flat prestressed tendon Download PDFInfo
- Publication number
- CN113982194A CN113982194A CN202111308620.8A CN202111308620A CN113982194A CN 113982194 A CN113982194 A CN 113982194A CN 202111308620 A CN202111308620 A CN 202111308620A CN 113982194 A CN113982194 A CN 113982194A
- Authority
- CN
- China
- Prior art keywords
- sighting device
- prestressed
- flat
- seat
- anchor block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000002435 tendon Anatomy 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims description 30
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an anchorage device for flat prestressed tendons, which comprises a lower sighting device, wherein an upper sighting device is embedded and installed outside the lower sighting device, prestressed steel bars are embedded and installed inside the lower sighting device and the upper sighting device, connecting seats are fixedly installed outside the lower sighting device and the upper sighting device, fixing bolts are installed on the outer portions of the connecting seats through threads, a power supply seat is fixedly installed outside the lower sighting device, an alarm lamp is electrically installed outside the power supply seat, and an anchor block, a clamping block and a limiting sleeve are embedded and installed outside the prestressed steel bars. The anchor block is matched with the clamping block to fix one end of the prestressed steel bar, and then the upper sighting device and the lower sighting device clamp and fix the prestressed steel bar.
Description
Technical Field
The invention belongs to the technical field of anchorage devices, and particularly relates to an anchorage device for flat prestressed tendons.
Background
The prestressed reinforcement means that before concrete is poured, compressive stress is applied to member concrete in advance through a pre-tensioning method or a post-tensioning method, then the concrete is poured, the reinforcement is loosened when the strength meets the requirement, the reinforcement is retracted, when the member bears the tensile force generated by external load, the pre-stress in the concrete is firstly counteracted, then the concrete is tensioned and cracks appear along with the increase of the load, so that the appearance and the development of the cracks of the member are delayed, the prestressed reinforcement needs to be matched with an anchorage device to fix the end face of the reinforcement when the prestressed reinforcement is tensioned, and the defects exist when the conventional anchorage device fixes the reinforcement, so that the anchorage device for the flat prestressed reinforcement is provided.
The CN203795725U discloses a prestressed anchor, including the anchor block, an one end face of the anchor block is provided with a plurality of trapezoidal through grooves which are arranged in parallel and have large groove bottoms, a prestressed lacing wire is connected in the trapezoidal through groove in a penetrating manner, one end of the prestressed lacing wire is sleeved with a sleeve, the sleeve is abutted against one side end face of the anchor block, the other end of the prestressed lacing wire is connected with one end of a connector, the other end of the connector is screwed with the thread head of a connecting screw rod, the connector is formed by connecting the end parts of a first pipe part and a second pipe part, the thread pipe hole I of the first pipe part is connected with an anchor ring in a threaded manner, a clamping piece is arranged in a tapered hole of the anchor ring, the prestressed lacing wire is connected in a penetrating manner in the central hole of the clamping piece, and the thread pipe hole II of the second pipe part is screwed with the thread head of the connecting screw rod.
However, the inventor finds that the technical scheme still has at least the following defects: when current ground tackle and reinforcing bar are fixed, because ground tackle is straight tube-shape, the reinforcing bar can take place the displacement in ground tackle inside, when the reinforcing bar takes place great displacement moreover, can't in time discover that the reinforcing bar takes place the displacement.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art, provides an anchor for a flat prestressed tendon, and adopts the basic concept of the technical scheme that:
the utility model provides a flat ground tackle for prestressed tendon, including the instrument of aiming down, aim the instrument outside and inlay and install down and aim the instrument, aim the instrument down and aim the inside prestressed reinforcement of all inlaying of instrument with last, aim the instrument down and aim the outside equal fixed mounting of instrument with last and have the connecting seat, fixing bolt is installed to the outside screw thread of connecting seat, aim the outside fixed mounting of instrument down and have the power supply seat, the outside electric mounting of power supply seat has the warning light, the prestressed reinforcement outside is inlayed and is installed the anchor block, clamp splice and spacing sleeve, anchor block outer wall fixed mounting has the slide bar frame, the outside fixed mounting of spacing sleeve has the take-up housing, take-up housing bottom fixed mounting has the barrel, spacing bolt is installed to the outside screw thread of barrel, the inside dead lever of inlaying of barrel installs.
Furthermore, a positioning bolt is installed on the outer wall of the limiting sleeve in a threaded mode, and the positioning bolt is in contact with the outer wall of the prestressed reinforcement.
Further, the bottom plane of the anchor block is respectively contacted with the outer walls of the lower sighting telescope and the upper sighting telescope.
Furthermore, an elastic switch is fixedly installed outside the fixing rod and electrically connected with the alarm lamp.
Furthermore, the surface of the sliding block seat is provided with a through hole, and the sliding rod frame is connected with the through hole of the sliding block seat in an embedded manner.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The anchor block is matched with the clamping block to fix one end of the prestressed steel bar, and then the upper sighting device and the lower sighting device clamp and fix the prestressed steel bar.
2. The limiting sleeve is matched with the positioning bolt to be connected with one end of the prestressed steel bar, when the prestressed steel bar is in tension and is in relative displacement with the clamping block, the limiting sleeve, the cylinder body, the fixing rod and the elastic switch move along with the prestressed steel bar, when the prestressed steel bar is in large displacement, the elastic switch can be in contact with the surface of the anchor block and triggers the elastic switch, then the alarm lamp is automatically started to warn that the prestressed steel bar is in large displacement, and the method is favorable for timely processing the situations.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a schematic structural view of the anchor block and the limiting sleeve of the present invention.
In the figure: 1-lower sighting device; 2-an upper sighting device; 3-prestressed reinforcement; 4-a power supply seat; 5-warning light; 6-anchor block; 7-a clamping block; 8-a slide bar frame; 9-a slider seat; 10-a limit sleeve; 11-a positioning bolt; 12-a cylinder body; 13-a fixation rod; 14-a fixing bolt; 15-a connecting seat; 16-a spring force switch; 17-limit bolt.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 3, the anchor for a flat prestressed tendon according to this embodiment includes a lower sight 1, an upper sight 2 is mounted on an outer portion of the lower sight 1 in an embedded manner, prestressed reinforcements 3 are mounted on inner portions of the lower sight 1 and the upper sight 2 in an embedded manner, the lower sight 1 and the upper sight 2 can clamp and fix the prestressed reinforcements 3, connecting seats 15 are fixedly mounted on outer portions of the lower sight 1 and the upper sight 2, fixing bolts 14 are threadedly mounted on outer portions of the connecting seats 15, the connecting seats 15 cooperate with the fixing bolts 14 to fix the lower sight 1 and the upper sight 2, a power base 4 is fixedly mounted on an outer portion of the lower sight 1, an alarm lamp 5 is electrically mounted on an outer portion of the power base 4, the power base 4 can provide power for the alarm lamp 5, an anchor block 6, a clamping block 7 and a limiting sleeve 10 are mounted on an outer wall of the prestressed reinforcement 3 in an embedded manner, a sliding rod frame 8 is fixedly mounted on an outer wall of the anchor block 6, and a supporting base 9 can slide, the outside fixed mounting of limit sleeve 10 has slider seat 9, and slider seat 9 bottom fixed mounting has barrel 12, and 12 outside threads of barrel install limit bolt 17, and limit bolt 17 can carry out the rigidity to dead lever 13, and 12 inside inlays and installs dead lever 13.
And a positioning bolt 11 is installed on the outer wall of the limiting sleeve 10 in a threaded manner, the positioning bolt 11 is in contact with the outer wall of the prestressed reinforcement 3, and further, the positioning bolt 11 can connect the limiting sleeve 10 with the prestressed reinforcement 3.
The bottom plane of anchor block 6 contacts with lower sight 1 and upper sight 2 outer wall respectively, and further, lower sight 1 and upper sight 2 can support anchor block 6, avoids anchor block 6 to take place the displacement.
An elastic switch 16 is fixedly installed outside the fixing rod 13, the elastic switch 16 is electrically connected with the alarm lamp 5, and further, the alarm lamp 5 can be automatically turned on when the elastic switch 16 is triggered.
The through-hole has been seted up on slider seat 9 surface, and the through-hole of slider seat 9 is inlayed and is connected to slide bar frame 8, and further, when stop sleeve 10 and slider seat 9 removed, slider seat 9 can slide at 8 outer walls of slider frame.
The principle is as follows: fix 3 one end of prestressed reinforcement through anchor block 6 cooperation anchor block 7, it is fixed to carry out the centre gripping with lower sight 1 to prestressed reinforcement 3 afterwards to go up sight 2, fix upper sight 2 with connecting seat 15 of lower sight 1 through fixing bolt 14, thereby it is fixed to carry out the terminal surface centre gripping to prestressed reinforcement 3, when drawing upper sight 2 with lower sight 1, can carry out tensile drawing to prestressed reinforcement 3, because upper sight 2 and lower sight 1 inside groove are right angle shape, can greatly reduced the condition that takes place the displacement when being tensile of prestressed reinforcement 3, guarantee that prestressed reinforcement 3 keeps stable state with upper prestressed reinforcement 2 and lower sight 1 when drawing, spacing sleeve 10 cooperation positioning bolt 11 can be connected with 3 one end of prestressed reinforcement, when prestressed reinforcement 3 takes place relative displacement with anchor block 7 when tensile, spacing sleeve 10 this moment, barrel 12, The fixed rod 13 and the elastic switch 16 move along with the movement of the prestressed reinforcement 3, when the prestressed reinforcement 3 has larger displacement, the elastic switch 16 can be contacted with the surface of the anchor block 6 and trigger the elastic switch 16, and then the alarm lamp 5 is automatically turned on to warn that the prestressed reinforcement 3 has larger displacement; the distance from the elastic switch 16 to the anchor block 6 can be adjusted by adjusting the position of the fixing rod 13 inside the cylinder 12 and limiting the position of the fixing rod 13 by the limiting bolt 17.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. An anchorage device for flat prestressed tendons comprises a lower sighting device (1) and is characterized in that the outer portion of the lower sighting device (1) is inlaid with an upper sighting device (2), the inner portions of the lower sighting device (1) and the upper sighting device (2) are all inlaid with prestressed steel bars (3), the outer portions of the lower sighting device (1) and the upper sighting device (2) are all fixedly provided with connecting seats (15), fixing bolts (14) are installed on the outer portions of the connecting seats (15) in a threaded manner, a power supply seat (4) is fixedly installed on the outer portion of the lower sighting device (1), an alarm lamp (5) is electrically installed on the outer portion of the power supply seat (4), an anchor block (6), a clamping block (7) and a limiting sleeve (10) are inlaid on the outer portion of the prestressed steel bars (3), a sliding rod frame (8) is fixedly installed on the outer wall of the anchor block (6), and a sliding block seat (9) is fixedly installed on the outer portion of the limiting sleeve (10), slider seat (9) bottom fixed mounting has barrel (12), spacing bolt (17) are installed to barrel (12) outside screw thread, barrel (12) inside is inlayed and is installed dead lever (13).
2. An anchorage device for flat prestressed tendons as claimed in claim 1, wherein the outer wall of the limiting sleeve (10) is threadedly provided with a positioning bolt (11), and the positioning bolt (11) is in contact with the outer wall of the prestressed reinforcement (3).
3. An anchorage assembly for flat tendons according to claim 1, wherein the bottom plane of the anchor block (6) is in contact with the outer walls of the lower sight (1) and the upper sight (2), respectively.
4. The anchorage device for the flat prestressed tendon as claimed in claim 1, wherein an elastic switch (16) is fixedly installed outside the fixing rod (13), and the elastic switch (16) is electrically connected with the alarm lamp (5).
5. The anchorage device for the flat prestressed tendon as claimed in claim 1, wherein the surface of the slider seat (9) is provided with a through hole, and the sliding rod frame (8) is connected with the through hole of the slider seat (9) in an embedded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308620.8A CN113982194A (en) | 2021-11-05 | 2021-11-05 | Anchor for flat prestressed tendon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111308620.8A CN113982194A (en) | 2021-11-05 | 2021-11-05 | Anchor for flat prestressed tendon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113982194A true CN113982194A (en) | 2022-01-28 |
Family
ID=79746907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111308620.8A Pending CN113982194A (en) | 2021-11-05 | 2021-11-05 | Anchor for flat prestressed tendon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113982194A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0913538A2 (en) * | 1997-10-29 | 1999-05-06 | Bilfinger + Berger Bauaktiengesellschaft | Device for the tensioning without bonding of building constructions |
| CN102853735A (en) * | 2012-08-29 | 2013-01-02 | 中铁十局集团有限公司 | Clamping sheet exposing value measuring device of front clamping type jack |
| KR101377122B1 (en) * | 2013-07-12 | 2014-03-25 | 유니슨이테크 주식회사 | Drawing apparatus and drawing system for manufacturing prestressed concrete |
| CN108827208A (en) * | 2018-08-10 | 2018-11-16 | 甘肃智通科技工程检测咨询有限公司 | A kind of anchor clipper, steel strand wires relative shift self-operated measuring unit |
| CN112393687A (en) * | 2020-12-10 | 2021-02-23 | 吴乔凤 | Actually measured displacement measuring device of steel strand relative test anchorage device for static load anchoring test |
| CN113309361A (en) * | 2021-05-07 | 2021-08-27 | 中国建筑第八工程局有限公司 | Prestressed automatic tensioning anchoring equipment and tensioning method |
-
2021
- 2021-11-05 CN CN202111308620.8A patent/CN113982194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0913538A2 (en) * | 1997-10-29 | 1999-05-06 | Bilfinger + Berger Bauaktiengesellschaft | Device for the tensioning without bonding of building constructions |
| CN102853735A (en) * | 2012-08-29 | 2013-01-02 | 中铁十局集团有限公司 | Clamping sheet exposing value measuring device of front clamping type jack |
| KR101377122B1 (en) * | 2013-07-12 | 2014-03-25 | 유니슨이테크 주식회사 | Drawing apparatus and drawing system for manufacturing prestressed concrete |
| CN108827208A (en) * | 2018-08-10 | 2018-11-16 | 甘肃智通科技工程检测咨询有限公司 | A kind of anchor clipper, steel strand wires relative shift self-operated measuring unit |
| CN112393687A (en) * | 2020-12-10 | 2021-02-23 | 吴乔凤 | Actually measured displacement measuring device of steel strand relative test anchorage device for static load anchoring test |
| CN113309361A (en) * | 2021-05-07 | 2021-08-27 | 中国建筑第八工程局有限公司 | Prestressed automatic tensioning anchoring equipment and tensioning method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220128 |