CN2392836Y - Pretensioned beam special clamp - Google Patents
Pretensioned beam special clamp Download PDFInfo
- Publication number
- CN2392836Y CN2392836Y CN 99253162 CN99253162U CN2392836Y CN 2392836 Y CN2392836 Y CN 2392836Y CN 99253162 CN99253162 CN 99253162 CN 99253162 U CN99253162 U CN 99253162U CN 2392836 Y CN2392836 Y CN 2392836Y
- Authority
- CN
- China
- Prior art keywords
- cross beam
- connector
- reinforcing steel
- presstressed reinforcing
- instrument
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a special clamp for a pretensioned beam, comprising fixed cross beams, a movable cross beam, a connector positioned at the inner side of the two fixed cross beams for connecting a tool prestressed bar and an operation prestressed bar and a push jack positioned between the fixed cross beams and the movable cross beam. The utility model is characterized in that tool prestressed bars at the outer side of the two fixed cross beams are connected with nuts, a connector for connecting the tool prestressed bar is arranged between the fixed cross beams connected with the push jack and the movable cross beam, and the tool prestressed bar and the connector both adopt screw connection. The utility model not only can quickly, conveniently and safely carry out operation and reduce the loss of prestressing, but also has the advantages of long service life and high utilization rate.
Description
The utility model relates to steel strand tension anchor clamps in a kind of prestressed reinforced concrete construction, and the beam special fixture is opened by particularly a kind of elder generation.
Usually, prestressed reinforced concrete construction is opened girder tensioning earlier to be needed to realize by special fixture mostly, once there was a kind of elder generation to open the beam anchor clamps, it is to connect the instrument presstressed reinforcing steel at two ends and the steel strand of workspace by being positioned at the inboard clip type connector that is provided with of two fixed cross beams, wherein a fixed cross beam arranged outside has the single hole ground tackle of anchor instrument presstressed reinforcing steel, another fixed cross beam and be positioned between the moved cross beam in this crossbeam outside and be provided with the pushing tow jack, and the instrument presstressed reinforcing steel that is connected with this terminal adapter passes through fixed cross beam, moved cross beam is anchored by the single hole ground tackle in the moved cross beam outside, because prestressing force is applied between the fixed cross beam of the moved cross beam and the other end behind the integral tension, and the anchor of clip type also can make and stays the wound vestige on the instrument presstressed reinforcing steel, reuse that not only safety factor is lower, and application life is also shorter.Simultaneously, when adopting this anchor clamps pretension,, also influenced the pretension effect to a certain extent because of certain retraction value is arranged.Again because when putting dismounting unit ground tackle, the distance that needs to utilize the jack of band spike that the instrument presstressed reinforcing steel is pulled out greater than 20mm can shed the single hole ground tackle, so not only difficulty is bigger, and very easily breaks the instrument presstressed reinforcing steel, makes its safety relatively poor.
The purpose of this utility model is to provide a kind of elder generation to open the beam special fixture, and it can load and unload and put fast, easily and safely and open, and reduces prestressed loss, prolongs the application life of instrument presstressed reinforcing steel, improves the utilization rate of these anchor clamps.
Its concrete solution is: be connected with nut on the instrument presstressed reinforcing steel in the two fixed cross beams outside, be provided with the connector that is used for the fastening means presstressed reinforcing steel and be connected with between the fixed cross beam on the very heavy top of pushing tow and the moved cross beam, and the instrument presstressed reinforcing steel all is to adopt to be threaded with connector.
In addition then, the connector of described connector is threaded with adapter sleeve, and the instrument intermediate plate of anchoring work presstressed reinforcing steel is arranged in the adapter sleeve, and instrument intermediate plate end is provided with holddown spring, is provided with O type rubber ring between instrument intermediate plate and adapter sleeve.
The utility model is because the instrument presstressed reinforcing steel contacts stressed being threaded with connector employing face, make instrument presstressed reinforcing steel junction not only can not produce the wound vestige, the application life of prolongation instrument presstressed reinforcing steel, and, also can be quick, convenient, load and unload safely and put and open, again because fixed cross beam outside instrument presstressed reinforcing steel is provided with nut, also make single pretension convenient reliable, eliminated the retraction value, reduced prestressed loss, make stressed more even, simultaneously can backhaul unloading pushing tow jack behind the integral tension, moved cross beam, connector between fixed cross beam and moved cross beam, thus usage ratio of equipment also improved greatly.
In conjunction with the accompanying drawings the utility model is described in detail below by embodiment:
Fig. 1 is the utility model structural representation.
Fig. 2 is the A portion structure enlarged drawing of Fig. 1.
Fig. 1, among Fig. 2, instrument presstressed reinforcing steel (1), (17), (13) be distributed on fixed cross beam (3) respectively, (9) and on the moved cross beam (11), fixed cross beam (3), (9), the instrument presstressed reinforcing steel (1) in moved cross beam (11) outside, (17), (13) nut (2) has been threaded on, (12), (18), instrument presstressed reinforcing steel (1), (17) be positioned at fixed cross beam (3), (9) medial extremity can pass through connector (5), (7) be connected with work presstressed reinforcing steel (6), and instrument presstressed reinforcing steel (17), (13) be connected by connector (16) between, and, the instrument presstressed reinforcing steel is with connector and is threaded, two pushing tow jack (10), (19) be arranged between fixed cross beam (9) and the moved cross beam (11).In addition then, adapter sleeve (22) is threaded with connector (21) in connector (5), (7), and connector (21) is provided with the internal thread that is connected with the instrument presstressed reinforcing steel, is provided with the instrument intermediate plate (25) of anchor work presstressed reinforcing steel (6) and the holddown spring (23) and the O type rubber ring (24) of setting tool intermediate plate in the adapter sleeve (22).And, fast instrument presstressed reinforcing steel adopts is fining twisted steel.And the two ends of two fixed cross beam inboards are provided with pier (4), (8).
During use, can the instrument presstressed reinforcing steel reliably be connected with the work presstressed reinforcing steel by connector.During single pretension, install jack (15) and nut (14) on can treating the instrument presstressed reinforcing steel (13) of pretension in the moved cross beam outside, by jack (15) application of force pretension, when reaching set-point, locking nut (12), unload lower nut (14) and jack (15) next root of pretension easily, so not only can eliminate the retraction value, reduce loss of prestress.Also can make stressed more even, behind the single pretension, can promote moved cross beam by pushing tow jack (10), (19) application of force and carry out integral tension, equally after integral tension arrives required tonnage, locking nut (12), prestressing force is applied between two fixed cross beams (3), (9), can backhaul unloading pushing tow jack (10), (19) and remove parts such as moved cross beam outside it as the tension clamp of another stretching bed seat by connector (16).When putting, utilize the jack (15) of band spike that the instrument presstressed reinforcing steel is done pulling slightly and can unload all parts such as lower nut (2), (12) and connector.
Claims (2)
1, the beam special fixture is opened by a kind of elder generation, comprise fixed cross beam (3), (9), moved cross beam (11), be positioned at two fixed cross beams (3), (9) inboard fastening means presstressed reinforcing steel (1), (17) and work presstressed reinforcing steel (6) connector (5), (7) and be positioned at pushing tow jack (10) between fixed cross beam (9) and moved cross beam (11), (19), it is characterized in that two fixed cross beams (3), (9) be connected with nut (2) on Wai Ce the instrument presstressed reinforcing steel, (12), be provided with the connector (16) that is used for the fastening means presstressed reinforcing steel and be connected with between the fixed cross beam (9) of pushing tow jack and the moved cross beam (11), and the instrument presstressed reinforcing steel all is to adopt to be threaded with connector.
2, according to claim 1 fast elder generation open the beam special fixture, the connector (21) that it is characterized in that connector (5), (7) is threaded with adapter sleeve (22), and the instrument intermediate plate (25) of anchoring work presstressed reinforcing steel is arranged in the adapter sleeve (22), and, instrument intermediate plate end is provided with holddown spring (23), is provided with O type rubber ring (24) between instrument intermediate plate (25) and adapter sleeve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99253162 CN2392836Y (en) | 1999-11-12 | 1999-11-12 | Pretensioned beam special clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99253162 CN2392836Y (en) | 1999-11-12 | 1999-11-12 | Pretensioned beam special clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2392836Y true CN2392836Y (en) | 2000-08-23 |
Family
ID=34037131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99253162 Expired - Fee Related CN2392836Y (en) | 1999-11-12 | 1999-11-12 | Pretensioned beam special clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2392836Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922237A (en) * | 2010-08-27 | 2010-12-22 | 北京工业大学 | Prestressing steel strand reinforced concrete flexural member connector formula tensioned anchorage system |
| CN101942904A (en) * | 2010-08-27 | 2011-01-12 | 北京工业大学 | Steel plate-type tensioning and anchoring system for prestress steel stranded wire reinforced concrete flexural member |
| CN103255718A (en) * | 2013-04-28 | 2013-08-21 | 中交第三公路工程局有限公司 | Pre-tensioning method plate-beam track movable type steel transverse beam integer tensioning device and tensioning technology |
| CN105257321A (en) * | 2015-09-28 | 2016-01-20 | 上海市基础工程集团有限公司 | Shield tunnel initial-stage construction duct piece pulling connection device and construction method |
| CN106013810A (en) * | 2016-05-26 | 2016-10-12 | 中铁二十三局集团轨道交通工程有限公司 | Pre-tensioning-method prestress tensioning construction method |
| CN108222376A (en) * | 2018-02-13 | 2018-06-29 | 柳州桂桥缆索有限公司 | A kind of steel strand connector and its application method of architectural engineering elder generation Zhang Liang |
| CN108867310A (en) * | 2018-07-12 | 2018-11-23 | 浙江省交通规划设计研究院有限公司 | The short rib T beam bridge of pretensioning prestressed concrete and its construction method |
| CN110424743A (en) * | 2019-07-25 | 2019-11-08 | 威胜利工程有限公司 | Presstressed reinforcing steel discharging method |
| CN111236653A (en) * | 2020-04-02 | 2020-06-05 | 吕路 | Construction engineering prestressed concrete construction equipment |
| CN113512950A (en) * | 2021-05-13 | 2021-10-19 | 开封强力集团锚固技术股份有限公司 | Hydraulic clamping device for adjusting tension degree of steel strand and using method thereof |
-
1999
- 1999-11-12 CN CN 99253162 patent/CN2392836Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942904A (en) * | 2010-08-27 | 2011-01-12 | 北京工业大学 | Steel plate-type tensioning and anchoring system for prestress steel stranded wire reinforced concrete flexural member |
| CN101922237A (en) * | 2010-08-27 | 2010-12-22 | 北京工业大学 | Prestressing steel strand reinforced concrete flexural member connector formula tensioned anchorage system |
| CN103255718A (en) * | 2013-04-28 | 2013-08-21 | 中交第三公路工程局有限公司 | Pre-tensioning method plate-beam track movable type steel transverse beam integer tensioning device and tensioning technology |
| CN103255718B (en) * | 2013-04-28 | 2015-04-08 | 中交第三公路工程局有限公司 | Pre-tensioning method plate-beam track movable type steel transverse beam integer tensioning device and tensioning technology |
| CN105257321A (en) * | 2015-09-28 | 2016-01-20 | 上海市基础工程集团有限公司 | Shield tunnel initial-stage construction duct piece pulling connection device and construction method |
| CN105257321B (en) * | 2015-09-28 | 2018-05-04 | 上海市基础工程集团有限公司 | Shield tunnel construction at initial stage section of jurisdiction sockets device and construction method |
| CN106013810A (en) * | 2016-05-26 | 2016-10-12 | 中铁二十三局集团轨道交通工程有限公司 | Pre-tensioning-method prestress tensioning construction method |
| CN106013810B (en) * | 2016-05-26 | 2019-02-01 | 中铁二十三局集团轨道交通工程有限公司 | A kind of Pretensioned prestressing stretch-drawing construction method |
| CN108222376B (en) * | 2018-02-13 | 2023-07-11 | 柳州桂桥缆索有限公司 | Steel strand connector of pretensioned beam for constructional engineering and use method thereof |
| CN108222376A (en) * | 2018-02-13 | 2018-06-29 | 柳州桂桥缆索有限公司 | A kind of steel strand connector and its application method of architectural engineering elder generation Zhang Liang |
| CN108867310A (en) * | 2018-07-12 | 2018-11-23 | 浙江省交通规划设计研究院有限公司 | The short rib T beam bridge of pretensioning prestressed concrete and its construction method |
| CN110424743A (en) * | 2019-07-25 | 2019-11-08 | 威胜利工程有限公司 | Presstressed reinforcing steel discharging method |
| CN111236653A (en) * | 2020-04-02 | 2020-06-05 | 吕路 | Construction engineering prestressed concrete construction equipment |
| CN111236653B (en) * | 2020-04-02 | 2021-09-17 | 吕路 | Construction engineering prestressed concrete construction equipment |
| CN113512950A (en) * | 2021-05-13 | 2021-10-19 | 开封强力集团锚固技术股份有限公司 | Hydraulic clamping device for adjusting tension degree of steel strand and using method thereof |
| CN113512950B (en) * | 2021-05-13 | 2023-03-14 | 开封强力集团锚固技术股份有限公司 | Hydraulic clamping device for adjusting tension of steel strand and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |