CN104233955B - For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line - Google Patents
For the spiral friction-type ground tackle of fiber-reinforced composite material rib drag-line Download PDFInfo
- Publication number
- CN104233955B CN104233955B CN201410506682.3A CN201410506682A CN104233955B CN 104233955 B CN104233955 B CN 104233955B CN 201410506682 A CN201410506682 A CN 201410506682A CN 104233955 B CN104233955 B CN 104233955B
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- CN
- China
- Prior art keywords
- cover plate
- line
- drag
- post core
- helicla flute
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 11
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 10
- 210000003205 muscle Anatomy 0.000 claims abstract description 35
- 230000036316 preload Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 1
- 238000010008 shearing Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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 kind of spiral friction-type ground tackle for fiber-reinforced composite material rib drag-line, comprise two pieces of band spiral fluted cover plate A and cover plate B, band spiral fluted post core, a drag-line fastener; Its cover plate is the identical semicircle of diameter with the helicla flute cross section in post core, 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 access aperture and delivery outlet in spiral fluted starting point and terminal, with the FRP muscle drag-line of helicla flute cross section same diameter through cover plate A access aperture, be wrapped in post core helicla flute in, and pass the delivery outlet of cover plate A, the Space Rotating groove curved surface that FRP muscle drag-line is formed by cover plate and post core wrap up, FRP muscle stay wire end is fixed by the drag-line fastener be arranged on cover plate A.Cover plate A, cover plate B, that band spiral fluted post core three is connected and fixed the present invention by the alignment pin at two ends is rational in infrastructure, dependable performance, durable.
Description
The application is application number: 201310278641.9, the applying date " 2013.7.4 ", the title divisional application that " is applied to the preload adjustable friction anchorage device of fiber-reinforced composite material rib drag-line ".
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 being applied to fiber-reinforced composite material rib drag-line.
Background technology
Cable stayed bridge main span is maximum in the world has at present reached 1088m (Su-Tong Brideg), wirerope drag-line its operating limit asymptotic of employing.Because along with span continue increase considerably, the proportion of weight in the load of bridge of wirerope drag-line will obviously increase, and 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, the strong guy cable as cable stayed bridge and suspension bridge has good application prospect.As the CFRP muscle drag-line of main bearing member, its bearing capacity controls primarily of anchoring property, instead of by the strength control of CFRP muscle itself.This is because the horizontal compressive strength of CFRP muscle and shear strength lower, traditional wirerope dragline anchorage will no longer be applicable to the anchoring of CFRP drag-line, otherwise due to lower shearing resistance static strength and the lower shearing resistance fatigue strength of CFRP muscle, by the premature failure causing it in anchorage zone.This be also CFRP muscle drag-line do not have now can in bridge engineering and general civil engineering one of major reason reaching extensive use.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.Present various countries are carrying out the research and development of CFRP muscle Special ground tackle always, 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 also exists in clamp area the problem of stress uniformity of exerting pressure; When 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, 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 a kind of rational in infrastructure, the preload adjustable friction anchorage device being applied to fiber-reinforced composite material rib drag-line of dependable performance, durable.
Technical solution of the present invention is:
Be applied to a preload adjustable friction anchorage device for fiber-reinforced composite material rib drag-line, it is characterized in that: comprise two pieces of band spiral fluted cover plate A and cover plate B, band spiral fluted post core, a drag-line fastener; Its cover plate is the identical semicircle of diameter with the helicla flute cross section in post core, 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 access aperture and delivery outlet in spiral fluted starting point and terminal, with the FRP muscle drag-line of helicla flute cross section same diameter through cover plate A access aperture, be wrapped in post core helicla flute in, and pass the delivery outlet of cover plate A, the spatially spiral groove curved surface that FRP muscle drag-line is formed by cover plate and post core wrap up, FRP muscle stay wire end is fixed by the drag-line fastener be arranged on cover plate A.
Cover plate A, cover plate B, band spiral fluted post core three are connected and fixed by the alignment pin at two ends.
Cover plate A, cover plate B are provided with shirt rim, and cover plate A, cover plate B are connected by the set bolt on fixing shirt rim, nut.
Leave gap between cover plate A and cover plate B, can anchor bolt nut be regulated, make to produce preload pressure between helicla flute and FEP muscle drag-line.
The curved surface of access aperture and delivery outlet and spiral fluted surface blending continuous and derivable.
The present invention is rational in infrastructure, and tool has the following advantages:
1, anchoring can be carried out to the CFRP muscle drag-line bearing huge pulling force.Need increase traditional clip type or bond type anchorage intermediate plate length or bonded areas length improve the chucking power to fiber drag-line, and chucking power increases limited.And ground tackle of the present invention utilizes the spiral friction of CFRP muscle drag-line to balance the pulling force of drag-line, 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 the Ying Li end, anchorage zone of traditional clip type or bond type anchorage, and the horizontal compressive strength of FRP muscle drag-line and shear strength lower, in use easily there is lateral shear fatigue failure.In ground tackle of the present invention, FRP muscle drag-line is wrapped in the helicla flute of two cover plates and post core, substantially can 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 fitted 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 by the pretightning force regulating the anchor bolt nut between two cover plates to come between adjustable screw groove and FRP muscle drag-line, can increase rotating friction force suffered by FRP muscle drag-line further.
Accompanying drawing explanation
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 pieces of bands spiral fluted cover plate (A) 1 and cover plate (B) 2, band spiral fluted post core 3, drag-line fastener 4; Its cover plate is the identical semicircle of diameter with the helicla flute cross section in post core, 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 access aperture and delivery outlet in spiral fluted starting point and terminal, with the FRP muscle drag-line 5 of helicla flute cross section same diameter through cover plate A access aperture, be wrapped in post core helicla flute in, and pass the delivery outlet of cover plate A, the spatially spiral groove curved surface that FRP muscle drag-line is formed by cover plate and post core wrap up, FRP muscle stay wire end is fixed by the drag-line fastener 4 be 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, band spiral fluted post core three are connected and fixed by the alignment pin 6 at two ends.
Cover plate A, cover plate B are provided with shirt rim 7, and cover plate A, cover plate B are connected by the set bolt on fixing shirt rim, nut 8.
Leave gap between cover plate A and cover plate B, can anchor bolt nut be regulated, make to produce preload pressure between helicla flute and FEP muscle drag-line.
The curved surface of access aperture and delivery outlet and spiral fluted surface blending continuous and derivable.
Claims (2)
1. for a spiral friction-type ground tackle for fiber-reinforced composite material rib drag-line, it is characterized in that: comprise two pieces of band spiral fluted cover plate A and cover plate B, band spiral fluted post core, a drag-line fastener; Its cover plate is the identical semicircle of diameter with the helicla flute cross section in post core, 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 access aperture and delivery outlet in spiral fluted starting point and terminal, with the FRP muscle drag-line of helicla flute cross section same diameter through cover plate A access aperture, be wrapped in post core helicla flute in, and pass the delivery outlet of cover plate A, the spatially spiral groove curved surface that FRP muscle drag-line is formed by cover plate and post core wrap up, FRP muscle stay wire end is fixed by the drag-line fastener be arranged on cover plate A; Leave gap between cover plate A and cover plate B, can anchor bolt nut be regulated, make to produce preload pressure between helicla flute and FRP muscle drag-line; The curved surface of access aperture and delivery outlet and spiral fluted surface blending continuous and derivable; Cover plate A, cover plate B, band spiral fluted post core three are connected and fixed by the alignment pin at two ends.
2. the spiral friction-type ground tackle for fiber-reinforced composite material rib drag-line according to claim 1, it is characterized in that: 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 segmental machining goes out locus one by one, coordinate helicla flute, ensure that FRP muscle drag-line can be wrapped in the spatially spiral groove of ground tackle fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| 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 Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310278641.9A Division CN103321150B (en) | 2013-07-04 | 2013-07-04 | Pretightening-force-adjustable friction-type anchorage device applied to fiber-reinforced composite material rib inhaul cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104233955A CN104233955A (en) | 2014-12-24 |
| CN104233955B true CN104233955B (en) | 2016-04-06 |
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Family Applications (3)
| 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 |
| 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 |
| 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 Before (2)
| 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 |
| 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 |
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| Country | Link |
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| CN (3) | CN104264583B (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 |
| 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 |
| 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 |
| 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 |
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| 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 |
| DE60010035T2 (en) * | 1999-09-15 | 2005-03-31 | Freyssinet International (Stup) | ANCHORING DEVICE FOR ATTACHING A STRUCTURAL CABLE TO A COMPONENT |
| 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 |
| 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 |
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| 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 |
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| 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 |
| KR101273160B1 (en) * | 2011-04-05 | 2013-06-14 | 서울시립대학교 산학협력단 | Anchorage assembles and structures for prestressing atypical concrete structures |
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2013
- 2013-07-04 CN CN201410506705.0A patent/CN104264583B/en active Active
- 2013-07-04 CN CN201310278641.9A patent/CN103321150B/en not_active Expired - Fee Related
- 2013-07-04 CN CN201410506682.3A patent/CN104233955B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60010035T2 (en) * | 1999-09-15 | 2005-03-31 | Freyssinet International (Stup) | ANCHORING DEVICE FOR ATTACHING A STRUCTURAL CABLE TO A COMPONENT |
| 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 |
| 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 |
| AT509076A4 (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 |
| CN102251474A (en) * | 2011-04-27 | 2011-11-23 | 南通大学 | Frictional anchorage device applied to fibre reinforced composite cables |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103321150A (en) | 2013-09-25 |
| CN104233955A (en) | 2014-12-24 |
| CN104264583B (en) | 2016-01-20 |
| CN104264583A (en) | 2015-01-07 |
| CN103321150B (en) | 2014-12-10 |
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