ZA201407085B - A pre-stressed tensioning hydraulic system, pre-stressed tensioning equipment and control method - Google Patents
A pre-stressed tensioning hydraulic system, pre-stressed tensioning equipment and control methodInfo
- Publication number
- ZA201407085B ZA201407085B ZA2014/07085A ZA201407085A ZA201407085B ZA 201407085 B ZA201407085 B ZA 201407085B ZA 2014/07085 A ZA2014/07085 A ZA 2014/07085A ZA 201407085 A ZA201407085 A ZA 201407085A ZA 201407085 B ZA201407085 B ZA 201407085B
- Authority
- ZA
- South Africa
- Prior art keywords
- stressed tensioning
- control method
- hydraulic system
- stressed
- equipment
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310624653.2A CN103629173B (en) | 2013-11-28 | 2013-11-28 | Prestressed stretch-draw hydraulic system, prestress tensioning equipment and controlling method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA201407085B true ZA201407085B (en) | 2016-01-27 |
Family
ID=50210544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA2014/07085A ZA201407085B (en) | 2013-11-28 | 2014-09-30 | A pre-stressed tensioning hydraulic system, pre-stressed tensioning equipment and control method |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103629173B (en) |
ZA (1) | ZA201407085B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104100590B (en) * | 2014-07-22 | 2016-04-27 | 湖南联智桥隧技术有限公司 | Jacking hydraulic system and jacking method thereof and the method that returns back to top |
CN104176664B (en) * | 2014-07-23 | 2016-07-13 | 徐州重型机械有限公司 | The hydraulic system altered before a kind of anti-telescopic crane boom and crane |
CN104314905B (en) * | 2014-10-14 | 2017-03-15 | 湖南联智桥隧技术有限公司 | Prestressing force intelligent tensioning hydraulic system, prestress tensioning equipment and its control method |
CN104675782B (en) * | 2015-02-13 | 2016-11-23 | 苏州铁马自动化科技有限公司 | Prestressing force intelligent tensioning electro-hydraulic servo equipment and control method thereof |
CN104947592B (en) * | 2015-04-30 | 2017-03-15 | 湖南联智桥隧技术有限公司 | The tensioning of cable-styled bridge sling and tune rope construction method |
CN105946112B (en) * | 2016-05-26 | 2019-02-19 | 中铁二十三局集团轨道交通工程有限公司 | A kind of pretensioned prestressing puts a constructing device and method |
CN110407126B (en) * | 2018-11-27 | 2024-01-09 | 上海同禾工程科技股份有限公司 | High-precision load control device for supporting axial force and application method thereof |
CN111101445A (en) * | 2019-12-25 | 2020-05-05 | 河南永智科技有限公司 | Hydraulic system for intelligent prestress tensioning equipment and synchronous tensioning method thereof |
CN111577686B (en) * | 2020-05-18 | 2022-03-29 | 广东志成电液科技有限公司 | Stepping hydraulic equipment and control method thereof |
CN112230539A (en) * | 2020-09-11 | 2021-01-15 | 湖南联智智能科技有限公司 | Bridge prestress tension frequency conversion control method |
CN112230538A (en) * | 2020-09-11 | 2021-01-15 | 湖南联智智能科技有限公司 | Load-holding variable frequency control method for bridge prestress tension value |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008032881B3 (en) * | 2008-07-14 | 2009-11-12 | Dywidag-Systems International Gmbh | Apparatus and method for controlling a tensioning press when tensioning a tendon |
CN201801815U (en) * | 2010-09-02 | 2011-04-20 | 大西铁路客运专线有限责任公司 | Railway passenger dedicated line box girder prestressed numerical control intelligent tensioning system |
CN102031874B (en) * | 2010-11-24 | 2012-05-30 | 湖南联智桥隧技术有限公司 | Intelligent type synchronous prestress tensioning system |
CN102304979B (en) * | 2011-08-03 | 2016-11-02 | 宁夏路桥工程股份有限公司 | The automatic control device of pre-stress stretching device |
CN202194873U (en) * | 2011-08-18 | 2012-04-18 | 湖南联智桥隧技术有限公司 | Servo pressure maintaining and speed regulation hydraulic circuit |
CN102431090B (en) * | 2011-10-25 | 2014-02-19 | 南开大学滨海学院 | Fiber grating precast beam prestress intelligent tensioning control system and implementation method thereof |
CN202646213U (en) * | 2012-07-03 | 2013-01-02 | 湖南联智桥隧技术有限公司 | Differential pressure circuit hydraulic system |
CN102953550B (en) * | 2012-09-29 | 2014-12-10 | 招商局重庆交通科研设计院有限公司 | Manual-automatic integrated tensioning system |
CN103088757B (en) * | 2013-02-06 | 2015-10-28 | 山西斯普瑞机械制造股份有限公司 | Box girder pre-stressed tension automatic control method and system |
CN203584930U (en) * | 2013-11-28 | 2014-05-07 | 湖南联智桥隧技术有限公司 | Prestress tension hydraulic system and prestress tension equipment |
-
2013
- 2013-11-28 CN CN201310624653.2A patent/CN103629173B/en active Active
-
2014
- 2014-09-30 ZA ZA2014/07085A patent/ZA201407085B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN103629173A (en) | 2014-03-12 |
CN103629173B (en) | 2015-12-02 |
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