CN107621441A - Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment - Google Patents
Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment Download PDFInfo
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- CN107621441A CN107621441A CN201710891520.XA CN201710891520A CN107621441A CN 107621441 A CN107621441 A CN 107621441A CN 201710891520 A CN201710891520 A CN 201710891520A CN 107621441 A CN107621441 A CN 107621441A
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- frp tendons
- internal thread
- steel pipe
- steel
- shaped
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- 210000002435 tendon Anatomy 0.000 title claims abstract description 59
- 239000002023 wood Substances 0.000 title claims abstract description 29
- 238000002474 experimental method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 239000007787 solid Substances 0.000 claims abstract description 12
- 210000003205 muscle Anatomy 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000013003 hot bending Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000011056 performance test Methods 0.000 abstract description 8
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 2
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 2
- 241000218652 Larix Species 0.000 description 2
- 235000005590 Larix decidua Nutrition 0.000 description 2
- 101710107464 Probable pyruvate, phosphate dikinase regulatory protein, chloroplastic Proteins 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment, belong to historic building structure reparation and field of reinforcement.Steel pipe including being threaded internal thread, hot bending is into U-shaped reinforcing bar；The steel pipe one end A parallel nesteds for being threaded internal thread are welded between two parallel legs of U-shaped steel muscle, between the U-shaped arc end of U-shaped steel muscle and the steel pipe one end A for being threaded internal thread there is a segment distance to form preformed hole；One end of FRP tendons to be tested is inserted into the steel duct for being threaded internal thread from the other end B for the steel pipe for being threaded internal thread, while is bonded together being threaded between the steel duct FRP tendons of internal thread and steel pipe using the epoxy resin irrigated；The other end of FRP tendons to be tested is inserted through in the hole of solid wood block, and fills up hole using carbon plate glue.FRP tendons and omnipotent mechanics machine can be fixedly secured by this grip device, consequently facilitating the development of FRP tendons and solid wood displacement of bond performance test.
Description
Technical field：
The invention belongs to historic building structure reparation and field of reinforcement, more particularly relates to FRP tendons (such as CFRP tendons, GFRP
Muscle, BFRP tendons) the wooden component technology method such as embedded reinforcement beam, post, a tree, used in making timber for boats, purlin basic research.
Background technology：
The historic building structure of China, has come down in a continuous line since thousands of years, forms distinctive architectural style.In conventional Gu
Build in wooden component strengthening by reparative method, damaged component is replaced by new structural member more, with the development in epoch, has excellent mechanical performances
And the FRP material of durability is gradually applied in the reinforcement and repair of historic building fire prevention.Conventional method, as outside wooden component surface
FRP cloth etc., the only angle from lifting mechanical property are pasted, it is seldom paid close attention to for the colour painting of wooden component surface and puies forward note etc.
Destroy and influence.This not only result in the forfeiture of ancient building body value information, while also violate the substantially former of historical relic's protection
Then.Therefore, for the components such as the wooden beam of ancient building, post, a tree, used in making timber for boats, purlin, slotted on its surface, embedded FRP tendons, and use structure
Glue fills up groove internal pore, and the hidden reinforcement means covered with wood skin then has more advantage and realistic meaning.
But even to this day, the country is related to FRP tendons and timber, the particularly research with the displacement of bond performance of solid wood
Very deficient, related patent of invention also almost blank, this has had a strong impact on that embedded FRP adds in historic building fire prevention reparation
Gu application and popularization in field.Therefore, it is badly in need of carrying out associated research work.
The present invention provides a kind of grip device for FRP tendons and solid wood displacement of bond performance test, suitable for clamping anchor
Gu the typical FRP tendons material of such as CFRP tendons, GFRP tendons, BFRP tendons, support is provided for displacement of bond performance test.
The content of the invention：
, can be by FRP tendons by this grip device it is an object of the invention to provide a kind of device of clamping anchorage FRP tendons
It is fixedly secured with omnipotent mechanics machine, consequently facilitating the development of FRP tendons and solid wood displacement of bond performance test.
Technical scheme：
The present invention is applied to FRP tendons and a kind of grip device of bonding wood slip property experiment, it is characterised in that：Including
It is threaded the steel pipe (2) of internal thread, hot bending is into U-shaped reinforcing bar (1)；
Be threaded internal thread steel pipe (2) one end A parallel nesteds be welded on U-shaped steel muscle (1) two parallel legs it
Between, the steel pipe (2) of internal thread is threaded with U-shaped steel muscle in a plane, the U-shaped arc end of U-shaped steel muscle and is threaded internal thread
Steel pipe (2) one end A between have a segment distance formed preformed hole (4)；One end of FRP tendons (5) to be tested is from being threaded
The other end B of the steel pipe of internal thread is inserted into the steel duct for being threaded internal thread, while in the steel duct for being threaded internal thread
It is bonded together between FRP tendons and steel pipe using the epoxy resin (7) irrigated；The other end of FRP tendons to be tested is inserted and worn
Cross in the hole of solid wood block, and hole is filled up using carbon plate glue so that solid wood block is integrally formed with FRP tendons.
Preformed hole (4) is placed in the U-shaped testing machine adapter groove of electronic universal tester, and preformed hole (4) is right
The circular hole of the accurate U-shaped trough rim of testing machine adapter groove two, and be fixedly connected with steel pin, wood blocks are located at Experimental electron ten thousand
It can be fixed outside testing machine, carry out FRP tendons and tested with bonding wood slip property.
Through another termination measuring instrument of the FRP tendons of wood blocks, bond-slip curve is recorded.
Above-mentioned hot bending reinforcing bar is integrated with the steel-pipe welding for being threaded internal thread.
The present invention is applied to the advantages of FRP tendons and a kind of grip device of bonding wood slip property experiment：
(1) because FRP tendons are difficult to directly be fixedly secured with omnipotent mechanics machine, this grip device can protect FRP tendons
And omnipotent mechanics machine is firmly connected, can smoothly carry out FRP tendons with this tests with bonding wood slip property.
(2) this grip device simple processing, and the FRP tendons suitable for different-diameter and different omnipotent mechanics machines.
Brief description of the drawings：
Fig. 1 is a kind of device of clamping anchorage FRP tendons of the present invention；
Fig. 2 is corresponding A-A cross-section cutaway views in Fig. 1；
Fig. 3 is the device and electronic universal tester connection diagram of clamping anchorage FRP tendons；
1 reinforcing bar, 2 are threaded the steel pipe of internal thread, the connected mode of 3 welding, 4 preformed holes, 5FRP muscle, 6 wood blocks, 7 rings
Oxygen tree fat.
Embodiment：
With reference to embodiment, the invention will be further described, but the present invention is not limited to following examples.
The steel pipe for being threaded internal thread is connected as a single entity by the present invention with hot bending reinforcing bar by welding, by glue rifle by ring
Oxygen tree fat fills steel pipe, by FRP tendons one end insertion steel pipe of experiment, treats that maintenance is abundant, FRP tendons are integrally formed with steel pipe.
The other end of FRP tendons is inserted in the hole of solid wood test specimen again, and hole is filled up with carbon plate glue, treat that maintenance is abundant, FRP tendons are the same as real
Wooden test specimen is integrally formed.Finally by steel pin, hot bending reinforcing bar is connected with omnipotent mechanics machine.So far, may be used
Carry out FRP tendons and solid wood displacement of bond performance test.
The present invention is innovated in for FRP tendons and solid wood displacement of bond performance test, and FRP muscle is difficult to omnipotent power
Learn testing machine to be joined directly together, by this grip device, firmly, easily can connect FRP tendons with omnipotent mechanics machine.Base
In the principle of this grip device, expandable member size, thus the FRP tendons suitable for different-diameter and the examination of different omnipotent mechanics
Machine is tested, is easy to apply and promotes.
Embodiment 1
The present invention is done further using CFRP tendons and larchwood displacement of bond performance test as instantiation below
Illustrate, but protection scope of the present invention not limited to this.
1. test raw material
Domestic larch (square section, sectional dimension 150mm, being highly 200mm), domestic CFRP tendons, carbon plate glue,
Epoxy resin, device are shown in Fig. 1, and size is shown in Fig. 2.
2. test implementation steps
(1) steel pipe for being threaded internal thread is connected as a single entity with hot bending reinforcing bar by welding；
(2) epoxy resin is filled by steel pipe by glue rifle, by FRP tendons one end insertion steel pipe of experiment, treats that maintenance is filled
Point, FRP tendons are integrally formed with steel pipe；
(3) other end of FRP tendons is inserted in the hole of larch test specimen, and hole is filled up with carbon plate glue, treat that maintenance is filled
Point, FRP tendons are integrally formed with larchwood test specimen；
(4) by steel pin, hot bending reinforcing bar is connected with omnipotent mechanics machine, you can start FRP tendons with
Larchwood displacement of bond performance test.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, it should all belong to the covering scope of the present invention.
Claims (3)
1. suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment, it is characterised in that：Including being threaded
The steel pipe (2) of internal thread, hot bending is into U-shaped reinforcing bar (1)；
Steel pipe (2) one end A parallel nesteds for being threaded internal thread are welded between two parallel legs of U-shaped steel muscle (1), band
There is the steel pipe (2) of screw thread internal thread with U-shaped steel muscle in a plane, the U-shaped arc end of U-shaped steel muscle and the steel pipe for being threaded internal thread
(2) between the A of one end there is a segment distance to form preformed hole (4)；One end of FRP tendons (5) to be tested is from being threaded internal thread
The other end B of steel pipe is inserted into the steel duct for being threaded internal thread, at the same be threaded the steel duct FRP tendons of internal thread with
It is bonded together between steel pipe using the epoxy resin (7) irrigated；The other end of FRP tendons to be tested is inserted through solid wood block
Hole in, and hole is filled up using carbon plate glue so that solid wood block is integrally formed with FRP tendons.
2. being applied to FRP tendons and a kind of grip device of bonding wood slip property experiment according to described in claim 1, it is special
Sign is：Preformed hole (4) is placed in the U-shaped testing machine adapter groove of electronic universal tester, and preformed hole (4) is aligned
The circular hole of the U-shaped trough rim of testing machine adapter groove two, and be fixedly connected with steel pin, it is omnipotent that wood blocks are located at Experimental electron
It is fixed outside testing machine, carry out FRP tendons and tested with bonding wood slip property.
3. being applied to FRP tendons and a kind of grip device of bonding wood slip property experiment according to described in claim 1, it is special
Sign is：Through another termination measuring instrument of the FRP tendons of wood blocks, bond-slip curve is recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891520.XA CN107621441A (en) | 2017-09-27 | 2017-09-27 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891520.XA CN107621441A (en) | 2017-09-27 | 2017-09-27 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107621441A true CN107621441A (en) | 2018-01-23 |
Family
ID=61091308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710891520.XA Withdrawn CN107621441A (en) | 2017-09-27 | 2017-09-27 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107621441A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913672A (en) * | 1995-07-04 | 1997-01-14 | P S Co Ltd | Frp tensional material, its fixing method and fixing tool |
| JPH1123436A (en) * | 1997-06-27 | 1999-01-29 | Nippon Shokubai Co Ltd | Auxiliary jig for tensile strength measurement and tensile strength measuring method |
| CN1699710A (en) * | 2005-04-30 | 2005-11-23 | 中材科技股份有限公司 | Prestressed fiber reinforced plastic plate anchoring device and tensioning towknee coordinated therewith |
| CN201087507Y (en) * | 2007-08-16 | 2008-07-16 | 同济大学 | Pre-stress fabric plastic rib group anchor |
| KR20110001645A (en) * | 2009-06-30 | 2011-01-06 | 코오롱건설주식회사 | An equipment and method for tension test of frp bar |
| CN102323145A (en) * | 2011-08-09 | 2012-01-18 | 江苏省产品质量监督检验研究院 | Hardware fitting for detecting mechanical property of bar material and using method thereof |
| CN203732357U (en) * | 2013-12-25 | 2014-07-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Dental bonding agent strength testing clamp |
| CN103954200A (en) * | 2014-05-15 | 2014-07-30 | 沈阳建筑大学 | Method of FRP reinforced concrete bond slip test |
| CN104234324A (en) * | 2014-09-22 | 2014-12-24 | 郑州大学 | Novel FRP rib threaded adhesive type anchorage device and mounting method of anchorage device |
| CN204422393U (en) * | 2015-02-17 | 2015-06-24 | 沈阳建筑大学 | The single-ended pull-out test device of a kind of FRP reinforced concrete bond-slip |
| CN204960139U (en) * | 2015-09-01 | 2016-01-13 | 上海大学 | Prestressing force FRP muscle stretch -draw anchor |
| CN105334110A (en) * | 2015-12-08 | 2016-02-17 | 南京航空航天大学 | Loading device and method for testing tension strength of unidirectional fiber reinforced composite perpendicular to fiber direction |
| CN106153447A (en) * | 2015-04-28 | 2016-11-23 | 博尔富（江苏）实业有限公司 | Steel wire rope bonding strength detects special fixture |
| CN207231987U (en) * | 2017-09-27 | 2018-04-13 | 北京工业大学 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
-
2017
- 2017-09-27 CN CN201710891520.XA patent/CN107621441A/en not_active Withdrawn
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913672A (en) * | 1995-07-04 | 1997-01-14 | P S Co Ltd | Frp tensional material, its fixing method and fixing tool |
| JPH1123436A (en) * | 1997-06-27 | 1999-01-29 | Nippon Shokubai Co Ltd | Auxiliary jig for tensile strength measurement and tensile strength measuring method |
| CN1699710A (en) * | 2005-04-30 | 2005-11-23 | 中材科技股份有限公司 | Prestressed fiber reinforced plastic plate anchoring device and tensioning towknee coordinated therewith |
| CN201087507Y (en) * | 2007-08-16 | 2008-07-16 | 同济大学 | Pre-stress fabric plastic rib group anchor |
| KR20110001645A (en) * | 2009-06-30 | 2011-01-06 | 코오롱건설주식회사 | An equipment and method for tension test of frp bar |
| CN102323145A (en) * | 2011-08-09 | 2012-01-18 | 江苏省产品质量监督检验研究院 | Hardware fitting for detecting mechanical property of bar material and using method thereof |
| CN203732357U (en) * | 2013-12-25 | 2014-07-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Dental bonding agent strength testing clamp |
| CN103954200A (en) * | 2014-05-15 | 2014-07-30 | 沈阳建筑大学 | Method of FRP reinforced concrete bond slip test |
| CN104234324A (en) * | 2014-09-22 | 2014-12-24 | 郑州大学 | Novel FRP rib threaded adhesive type anchorage device and mounting method of anchorage device |
| CN204422393U (en) * | 2015-02-17 | 2015-06-24 | 沈阳建筑大学 | The single-ended pull-out test device of a kind of FRP reinforced concrete bond-slip |
| CN106153447A (en) * | 2015-04-28 | 2016-11-23 | 博尔富（江苏）实业有限公司 | Steel wire rope bonding strength detects special fixture |
| CN204960139U (en) * | 2015-09-01 | 2016-01-13 | 上海大学 | Prestressing force FRP muscle stretch -draw anchor |
| CN105334110A (en) * | 2015-12-08 | 2016-02-17 | 南京航空航天大学 | Loading device and method for testing tension strength of unidirectional fiber reinforced composite perpendicular to fiber direction |
| CN207231987U (en) * | 2017-09-27 | 2018-04-13 | 北京工业大学 | Suitable for FRP tendons and a kind of grip device of bonding wood slip property experiment |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180123 |
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| WW01 | Invention patent application withdrawn after publication |