CN103321150B - Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable - Google Patents
Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable Download PDFInfo
- Publication number
- CN103321150B CN103321150B CN201310278641.9A CN201310278641A CN103321150B CN 103321150 B CN103321150 B CN 103321150B CN 201310278641 A CN201310278641 A CN 201310278641A CN 103321150 B CN103321150 B CN 103321150B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- line
- drag
- inhaul cable
- spiral groove
- 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
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ropes Or Cables (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pretightening-force-adjustable friction-type anchorage device applied to a fiber-reinforced composite material rib inhaul cable. The pretightening-force-adjustable friction-type anchorage device comprises a cover plate A, a cover plate B, a column core with a spiral groove, and an inhaul cable fastener, the cover plate A and the cover plate B are provided with spiral grooves respectively, sections of the spiral grooves in the cover plates and the column core are all semicircles identical in diameter, the spiral grooves in the two cover plates and the column core are matched with one another to form a space spiral groove with a round section, an inlet hole and an outlet hole are formed at the starting point and the ending point of the spiral groove of the cover plate A, an FRP (fiber reinforced polymer) rib inhaul cable identical with the section of the spiral groove in diameter penetrates the inlet hole of the cover plate A, is wound in the spiral groove in the column core and penetrates the outlet hole of the cover plate A, the FRP rib inhaul cable is wrapped by a curved surface of the space spiral groove formed by the cover plates and the column core, and the tail end of the FRP rib inhaul cable is fixed by the inhaul cable fastener mounted on the cover plate A. The pretightening-force-adjustable friction-type anchorage device applied to the fiber-reinforced composite material rib inhaul cable is reasonable in structure, reliable in performance and durable.
Description
Technical field
The present invention relates to fibre reinforced composites (FRP) the muscle anchor-hold device in a kind of civil engineering and traffic engineering, is a kind of preload adjustable friction anchorage device that is applied to fiber-reinforced composite material rib drag-line.
Background technology
Cable stayed bridge main span maximum has reached the logical bridge of 1088m(Soviet Union in the world at present), asymptotic its operating limit of wirerope drag-line of employing.Because along with span continue increase considerably, the proportion of the weight of wirerope drag-line in the load of bridge will obviously increase, at this moment wirerope drag-line is not competent.Super-span suspension bridge also has same problem.The advantage such as carbon fibre reinforced composite (CFRP) muscle has that quality is light, intensity is high, corrosion-resistant, endurance, underrelaxation, solenoid isolation are good and damping performance is good, has good application prospect as the strong guy cable of cable stayed bridge and suspension bridge.As the CFRP muscle drag-line of main bearing member, its bearing capacity is mainly by anchoring property control, instead of by the strength control of CFRP muscle itself.This is because horizontal compressive strength and the shear strength of CFRP muscle are lower, traditional wirerope dragline anchorage will no longer be applicable to the anchoring of CFRP drag-line, otherwise due to the lower shearing resistance static strength of CFRP muscle and lower shearing resistance fatigue strength, by the premature failure that causes it in anchorage zone.This is also that CFRP muscle drag-line does not have in bridge engineering and general civil engineering, to reach one of major reason of extensive use now.Therefore CFRP muscle drag-line will be applied on super-span and Extra-Long-Span Cable-Stayed Bridge and suspension bridge, the development of reliable and effective powerful ground tackle is a urgent problem.Various countries are carrying out the research and development of CFRP muscle Special ground tackle always now, and according to the stressed operating principle of these ground tackles, they can be divided into mechanical grip formula and the large class of bond type anchorage two substantially.Mechanical grip formula ground tackle exists the problem of the stress equilibrium of exerting pressure in clamp area; In the time that cable-tension direction constantly changes, also there is problems such as accommodating the bending of end, district and shear fatigue in mechanical grip formula ground tackle, and bond type anchorage also exists the problems such as the bending of end, bond regions and shear fatigue.
Summary of the invention
The object of the present invention is to provide one rational in infrastructure, the preload adjustable friction anchorage device that is applied to fiber-reinforced composite material rib drag-line of dependable performance, durable.
Technical solution of the present invention is:
A preload adjustable friction anchorage device that is applied to fiber-reinforced composite material rib drag-line, is characterized in that: comprise two band spiral fluted cover plate A and cover plate B, a band spiral fluted post core, a drag-line fastener; Its cover plate is with the helicla flute cross section in post core the semicircle that diameter is identical, and the helicla flute in two cover plates and post core complements each other to form the spatially spiral groove that a cross section is circle; Cover plate A has and enters hole and delivery outlet at spiral fluted starting point and terminal, with the FRP muscle drag-line of helicla flute cross section same diameter entering hole, be wrapped in the helicla flute in post core through cover plate A, and through the delivery outlet of cover plate A, FRP muscle drag-line is wrapped up by the Space Rotating groove curved surface of cover plate and the formation of post core, and FRP muscle drag-line end is fixed by the drag-line fastener being arranged on cover plate A.
Cover plate A, cover plate B, be connected and fixed by the alignment pin at two ends with spiral fluted post core three.
Cover plate A, cover plate B are provided with shirt rim, and cover plate A, cover plate B connect by the set bolt on fixing shirt rim, nut.
Between cover plate A and cover plate B, leave gap, can regulate anchor bolt nut, make to produce preload pressure between helicla flute and FEP muscle drag-line.
The curved surface and the spiral fluted surface blending that enter hole and delivery outlet are smooth continuously.
The present invention is rational in infrastructure, and tool has the following advantages:
1, can carry out anchoring to the CFRP muscle drag-line that bears huge pulling force.Traditional clip type or bond type anchorage need increase intermediate plate length or bonded areas length improves the chucking power to fiber drag-line, and chucking power increases limited.And ground tackle of the present invention is to utilize the spiral friction of CFRP muscle drag-line to carry out the pulling force of balance drag-line, to be known by Euler's flexible cable friction formula, the frictional force of drag-line becomes geometric growth relation with rotating cycle.
2, FRP muscle drag-line is very easily subject to the effect of lateral pressure and shearing in Ying Li end, the anchorage zone of traditional clip type or bond type anchorage, and horizontal compressive strength and the shear strength of FRP muscle drag-line are lower, and lateral shear fatigue failure in use easily occurs.In ground tackle of the present invention, FRP muscle drag-line is wrapped in the helicla flute of two cover plates and post core, can substantially eliminate the effect of transverse shearing force.As long as according to FRP muscle drag-line diameter, determine suitable post in-core external diameter and cover plate inner and outer diameter, process post core and cover plate A, cover plate B, and segmentation high accuracy one by one to process locus accurate, coordinate the helicla flute fitting together perfectly, just can ensure that FRP muscle drag-line can be wrapped in the spatially spiral groove of ground tackle fully.
3, ground tackle of the present invention can, by regulating the anchor bolt nut between two cover plates to carry out the pretightning force between adjustable screw groove and FRP muscle drag-line, further increase the suffered spin friction power of FRP muscle drag-line.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is another angle schematic diagram of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the left view of Fig. 3.
Detailed description of the invention
Be applied to a preload adjustable friction anchorage device for fiber-reinforced composite material rib drag-line, comprise two bands spiral fluted cover plate (A) 1 and cover plates (B) 2, band spiral fluted post core 3, a drag-line fastener 4; Its cover plate is with the helicla flute cross section in post core the semicircle that diameter is identical, and the helicla flute in two cover plates and post core complements each other to form the spatially spiral groove that a cross section is circle; Cover plate A has and enters hole and delivery outlet at spiral fluted starting point and terminal, with the FRP muscle drag-line 5 of helicla flute cross section same diameter entering hole, be wrapped in the helicla flute in post core through cover plate A, and through the delivery outlet of cover plate A, FRP muscle drag-line is wrapped up by the Space Rotating groove curved surface of cover plate and the formation of post core, and FRP muscle drag-line end is fixed by the drag-line fastener 4 being arranged on cover plate A.Cover plate and post core are made by high strength steel, have the higher strength of materials.
Cover plate A, cover plate B, be connected and fixed by the alignment pin 6 at two ends with spiral fluted post core three.
Cover plate A, cover plate B are provided with shirt rim 7, and cover plate A, cover plate B connect by set bolt, nut 8 on fixing shirt rim.
Between cover plate A and cover plate B, leave gap, can regulate anchor bolt nut, make to produce preload pressure between helicla flute and FEP muscle drag-line.
The curved surface and the spiral fluted surface blending that enter hole and delivery outlet are smooth continuously.
Claims (1)
1. a preload adjustable friction anchorage device that is applied to fiber-reinforced composite material rib drag-line, is characterized in that: comprise two band spiral fluted cover plate A and cover plate B, a band spiral fluted post core, a drag-line fastener; Its cover plate is with the helicla flute cross section in post core the semicircle that diameter is identical, and the helicla flute in two cover plates and post core complements each other to form the spatially spiral groove that a cross section is circle; Cover plate A has and enters hole and delivery outlet at spiral fluted starting point and terminal, with the FRP muscle drag-line of helicla flute cross section same diameter entering hole, be wrapped in the helicla flute in post core through cover plate A, and through the delivery outlet of cover plate A, FRP muscle drag-line is wrapped up by the spatially spiral groove curved surface of cover plate and the formation of post core, and FRP muscle drag-line end is fixed by the drag-line fastener being arranged on cover plate A; Between cover plate A and cover plate B, leave gap, can regulate anchor bolt nut, make to produce preload pressure between helicla flute and FEP muscle drag-line; The curved surface and the spiral fluted surface blending that enter hole and delivery outlet are smooth continuously.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278641.9A CN103321150B (en) | 2013-07-04 | 2013-07-04 | Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable |
| CN201410506682.3A CN104233955B (en) | 2013-07-04 | 2013-07-04 | For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line |
| CN201410506705.0A CN104264583B (en) | 2013-07-04 | 2013-07-04 | Fiber-reinforced composite material rib drag-line preload adjustable spiral friction-type ground tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278641.9A CN103321150B (en) | 2013-07-04 | 2013-07-04 | Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506682.3A Division CN104233955B (en) | 2013-07-04 | 2013-07-04 | For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line |
| CN201410506705.0A Division CN104264583B (en) | 2013-07-04 | 2013-07-04 | Fiber-reinforced composite material rib drag-line preload adjustable spiral friction-type ground tackle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321150A CN103321150A (en) | 2013-09-25 |
| CN103321150B true CN103321150B (en) | 2014-12-10 |
Family
ID=49190174
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506682.3A Active CN104233955B (en) | 2013-07-04 | 2013-07-04 | For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line |
| CN201310278641.9A Expired - Fee Related CN103321150B (en) | 2013-07-04 | 2013-07-04 | Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable |
| CN201410506705.0A Active CN104264583B (en) | 2013-07-04 | 2013-07-04 | Fiber-reinforced composite material rib drag-line preload adjustable spiral friction-type ground tackle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506682.3A Active CN104233955B (en) | 2013-07-04 | 2013-07-04 | For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506705.0A Active CN104264583B (en) | 2013-07-04 | 2013-07-04 | Fiber-reinforced composite material rib drag-line preload adjustable spiral friction-type ground tackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104233955B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101676749B1 (en) * | 2016-03-18 | 2016-11-17 | 주식회사 성화씨앤비 | Band apparatus for main cable of suspension bridge |
| CN106087743B (en) * | 2016-07-29 | 2018-11-13 | 安徽金星预应力工程技术有限公司 | A kind of droplet-shaped saddle end seal |
| CN106049280B (en) * | 2016-07-29 | 2018-03-02 | 安徽金星预应力工程技术有限公司 | A kind of saddle end seal with double locators |
| CN106702897B (en) * | 2017-02-27 | 2018-09-28 | 郑州大学 | A kind of steel for wire drawing and preparation method thereof |
| CN109722985B (en) * | 2018-12-07 | 2020-07-31 | 九江职业技术学院 | Function separation type self-resetting friction cable energy dissipation and shock absorption support |
| CN110469056B (en) * | 2019-07-05 | 2021-03-26 | 东南大学 | Combined anchorage device for fiber reinforced composite material inhaul cable and preparation method |
| CN112064504B (en) * | 2020-09-09 | 2021-11-02 | 清华大学 | Self-anchored carbon fiber inhaul cable and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606774Y (en) * | 2003-04-11 | 2004-03-17 | 柳州欧维姆机械有限责任公司 | Prestress FRP rib screw pressurizing binding ground tackle |
| KR20090041015A (en) * | 2007-10-23 | 2009-04-28 | 한국건설기술연구원 | Anchorage apparatus for fiber tendon with pressed projections |
| CN102251474A (en) * | 2011-04-27 | 2011-11-23 | 南通大学 | Frictional anchorage device applied to fibre reinforced composite cables |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2798410B1 (en) * | 1999-09-15 | 2001-11-23 | Freyssinet Int Stup | ANCHORING DEVICE FOR ATTACHING A STRUCTURAL CABLE TO A CONSTRUCTION ELEMENT |
| CN2677485Y (en) * | 2004-03-04 | 2005-02-09 | 邵旭东 | Secondary stretch-draw prestressed reinforcing steel structure |
| CN200989036Y (en) * | 2006-10-30 | 2007-12-12 | 威胜利工程有限公司 | Anchoring device |
| CN201003241Y (en) * | 2007-01-24 | 2008-01-09 | 柳州欧维姆机械股份有限公司 | Anchorage device with seal structure |
| JP2011184894A (en) * | 2010-03-05 | 2011-09-22 | Ps Mitsubishi Construction Co Ltd | Anchorage device for prestressing tendon, and method for repairing existing prestressed concrete structure |
| AT509076B1 (en) * | 2010-03-22 | 2011-06-15 | Hermann Dipl Ing Thal | ANCHORING FOR SPANNING MEMBERS |
| CN201738238U (en) * | 2010-06-22 | 2011-02-09 | 山东高速青岛公路有限公司 | Cable stayed anchor plate type anchor of cable stayed bridge cable tower |
| CN102477787A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Anchor device for post-tensioned prestressed fiber reinforced polymeric material rib applied to civil engineering |
| KR101273160B1 (en) * | 2011-04-05 | 2013-06-14 | 서울시립대학교 산학협력단 | Anchorage assembles and structures for prestressing atypical concrete structures |
| CN102261166A (en) * | 2011-05-25 | 2011-11-30 | 湖北金力工程复合材料有限公司 | Fiber reinforced polymer (FRP) sheet anchor device and anchoring method thereof |
| CN202299134U (en) * | 2011-07-05 | 2012-07-04 | 成都川锚路桥机械有限公司 | Steel strand anchoring system |
-
2013
- 2013-07-04 CN CN201410506682.3A patent/CN104233955B/en active Active
- 2013-07-04 CN CN201310278641.9A patent/CN103321150B/en not_active Expired - Fee Related
- 2013-07-04 CN CN201410506705.0A patent/CN104264583B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606774Y (en) * | 2003-04-11 | 2004-03-17 | 柳州欧维姆机械有限责任公司 | Prestress FRP rib screw pressurizing binding ground tackle |
| KR20090041015A (en) * | 2007-10-23 | 2009-04-28 | 한국건설기술연구원 | Anchorage apparatus for fiber tendon with pressed projections |
| CN102251474A (en) * | 2011-04-27 | 2011-11-23 | 南通大学 | Frictional anchorage device applied to fibre reinforced composite cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104233955B (en) | 2016-04-06 |
| CN104233955A (en) | 2014-12-24 |
| CN103321150A (en) | 2013-09-25 |
| CN104264583B (en) | 2016-01-20 |
| CN104264583A (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103321150B (en) | Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable | |
| CN108004926B (en) | Large-tonnage FRP inhaul cable anchoring process | |
| CN207959721U (en) | The composite anchorage of FRP presstressed reinforcing steels | |
| CN102747811A (en) | Carbon fiber reinforced polymer rope anchor | |
| CN105571958B (en) | Heavy caliber high-strength composite tube crane torsion test device and its test method | |
| CN102493660A (en) | Anchoring method and anchoring tool for carbon fiber reinforced composite material prestressed bar | |
| CN102493661A (en) | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire | |
| CN102251474B (en) | Frictional anchorage device applied to fibre reinforced composite cables | |
| CN104234324A (en) | Novel FRP rib threaded adhesive type anchorage device and mounting method of anchorage device | |
| CN205483851U (en) | Heavy -calibre high strength composite material pipe torsion test device | |
| CN202544235U (en) | Fiber reinforced plastic (FRP) outer pack pipe FRP geosynthetic sea sand fiber reinforced concrete bending member | |
| CN106930467B (en) | Combined roof truss with FRP cable at lower chord | |
| CN104912070B (en) | The manufacturing process and Torsion bearing capacity computational methods of high-performance FRP anchor poles | |
| CN202107998U (en) | Friction anchorage device used for fiber reinforced composite bar dragline | |
| CN206707121U (en) | Combined roof truss with FRP cable at lower chord | |
| CN103388407A (en) | Method for reinforcing concrete member by adopting surface prestress embedded technology, and mechanical device | |
| CN201288394Y (en) | Device for fastening lower camber node of astaddle chord beam or astaddle chord girder | |
| CN211292320U (en) | Clamping piece type anchorage for closed cable Z-shaped steel wire test | |
| CN202141630U (en) | Transition section for damage tolerance test piece of integral reinforced flat plate | |
| CN110823686A (en) | Clamping piece type anchorage for closed cable Z-shaped steel wire test | |
| CN105547816B (en) | Carbon fibre bar anchor system based on long-term behaviour | |
| CN201614549U (en) | Composite cable clamp | |
| CN204112600U (en) | New type FRP rib tape screw plug bond type anchorage | |
| CN204475872U (en) | Pre-stressed carbon fiber plate tensioning equipment | |
| RU150388U1 (en) | COMPOSITE FITTINGS WITH INCREASED SURFACE SPACE AREA |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180704 |