CN104264998B - For the machine drawing of FRP fixing quantity self-anchoring type prestressing force - Google Patents
For the machine drawing of FRP fixing quantity self-anchoring type prestressing force Download PDFInfo
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- CN104264998B CN104264998B CN201410554300.4A CN201410554300A CN104264998B CN 104264998 B CN104264998 B CN 104264998B CN 201410554300 A CN201410554300 A CN 201410554300A CN 104264998 B CN104264998 B CN 104264998B
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- frp
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- corrugated sheet
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Abstract
The present invention is open a kind of for the machine drawing of FRP fixing quantity self-anchoring type prestressing force.It is that jack level is located at bottom frame on adapting position, and upper rack two ends are respectively equipped with guide rolls; Described guide rolls walked around by FRP sheet material, and its two ends are sandwiched in corrugated sheet fixture I, II respectively; Parallelly on the fixed head of frame one end adapting position be provided with a pair angle pulley; The adapting position of this end framework pillar is provided with contact pilotage displacement meter upward; Bottom the frame other end, adapting position is provided with dynamometer; This dynamometer is connected away from FRP sheet material one end with corrugated sheet fixture II, and described corrugated sheet fixture I is provided with a pair stretching pulley away from FRP sheet material one end; Power transmission wire rope walks around each stretching pulley and angle pulley, and these power transmission wire rope two ends are connected with two pull bars of described jack respectively.Effectively avoid the secondary damage to ruggedized construction thing, reach the deflection demonstrated in real time by stretch-draw FRP sheet material, there is simple, general feature.
Description
Technical field
The present invention relates to a kind of pre-stress FRP tensioning equipment, especially relate to a kind of for the machine drawing of FRP fixing quantity self-anchoring type prestressing force.
Background technology
Along with FRP material widely using in building reinforce field, particularly in order to play the high-strength performance of FRP, the method generally adopted is to FRP Shi Hanzhang.
Usually, be reinforced building structure as counterforce device to the many utilizations of method of FRP sheet material Shi Hanzhang, be fixed on by reinforcement equipment in ruggedized construction, this method can cause secondary damage to reinforced structure, and reinforcement equipment can not reuse simultaneously.Can not accurately control applied prestressing force, facility are without quantitative control device, and need to carry out testing to make and can control sample table for the FRP tension stress of onsite application, need to produce the tensioner of different parameters to applying different prestressing force, versatility is not enough.Directly perceived not to the measurement of the FRP sheet material variable after Shi Hanzhang, directly can not show the deflection of FRP, need conversion to draw, be difficult to realize larger stretching force.In addition, existing tensioner is used in test room, can not be widely used in engineering practice, the most or solution adopting a thing one to discuss in engineering practice operation, the general facility of neither one simple possible.
Summary of the invention
The present invention be directed to the problems referred to above and provide a kind of rational in infrastructure, applied stretching force can be accurately controlled in stretching process for FRP sheet material, and high-level prestressing force can be applied, directly show the deflection of FRP sheet material, realize simple, general in the machine drawing of FRP fixing quantity self-anchoring type prestressing force.
The technical scheme of technical solution problem of the present invention is:
For the machine drawing of FRP fixing quantity self-anchoring type prestressing force, comprise frame, jack, corrugated sheet fixture, displacement meter and dynamometer, it is that jack level is located at bottom frame on adapting position, and upper rack two ends are respectively equipped with guide rolls; Described guide rolls walked around by FRP sheet material, and its two ends are sandwiched in corrugated sheet fixture I, II respectively; Parallelly on the fixed head of frame one end adapting position be provided with a pair angle pulley; The adapting position of this end framework pillar is provided with contact pilotage displacement meter upward; Bottom the frame other end, adapting position is provided with dynamometer; This dynamometer is connected away from FRP sheet material one end with described corrugated sheet fixture II, and described corrugated sheet fixture I is provided with a pair stretching pulley away from FRP sheet material one end; Power transmission wire rope walks around each stretching pulley and angle pulley, and these power transmission wire rope two ends are connected with two pull bars of described jack respectively.
Described jack is mechanical spiral jack, and stroke range is between 0 ~ 180mm, and horizontal thrust scope is 0 ~ 160kN.
Described corrugated sheet fixture I, II is formed by the intermeshing waveform tooth plate of two panels, and is at least connected as one by a bolt.
Described frame is welded by channel-section steel or bolt is formed by connecting, and corner, bottom is provided with leveling and movable pulley.
Described movable pulley is with locking function.
The present invention compared with prior art has following advantages and effect:
The present invention utilizes FRP sheet material self as counterforce device, and this mode from anchor effectively avoids the secondary damage to ruggedized construction thing, makes the stretch-draw of FRP sheet material become independently technique; Utilize stretching force that jack applies, the size of stretching force can be used flexibly, produce higher stretching force; The use of corrugated sheet fixture, can firmly clamp FRP sheet material, and is unlikely to occur shear failure; Measuring equipment in the present invention accurately can control the numerical value of stretching force, demonstrates by the deflection of stretch-draw FRP sheet material in real time; The removable Reusability of the present invention, and structure is simple, highly versatile, has good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is that structure for amplifying schematic diagram is looked on a left side of Fig. 1 of the present invention;
Fig. 3 is that structure for amplifying schematic diagram is looked on the right side of Fig. 1 of the present invention;
Fig. 4 is the plan structure schematic diagram that the present invention removes FRP sheet material.
Major part in figure: displacement meter 1, angle pulley 2, corrugated sheet fixture I 3, guide rolls 4, FRP sheet material 5, frame 6, corrugated sheet fixture II 7, dynamometer 8, movable pulley 9, jack 10, pull bar 11, power transmission wire rope 12, stretching pulley 13, jack lever 14.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further elaborated, but protection scope of the present invention do not limited by specific embodiment, be as the criterion with claims.In addition, with without prejudice under the prerequisite of technical solution of the present invention, any change that those of ordinary skill in the art made for the present invention easily realize or change all will fall within right of the present invention.
Embodiment 1:
As shown in Fig. 1-4, for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, comprise displacement meter 1, angle pulley 2, corrugated sheet fixture I 3, guide rolls 4, FRP sheet material 5, frame 6, corrugated sheet fixture II 7, dynamometer 8, movable pulley 9, mechanical spiral jack 10, pull bar 11, power transmission wire rope 12, stretching pulley 13, jack lever 14, its mechanical spiral jack 10 level is located at bottom frame 6 on adapting position, and frame 6 both upper ends thereof is respectively equipped with guide rolls 4; Described guide rolls 4 walked around by FRP sheet material 5, and its two ends are sandwiched in corrugated sheet fixture I, II 3,7 respectively; Parallelly on the fixed head of frame 4 one end adapting position be provided with a pair angle pulley 2; The adapting position of this terminal frame 4 column is provided with contact pilotage displacement meter 2 upward; Bottom frame 4 other end, centre position is provided with dynamometer 8; This dynamometer 8 and described corrugated sheet fixture II 7 two of being provided with away from FRP sheet material one end are won in succession and to be connected by bolt, and described corrugated sheet fixture I 3 is provided with a pair stretching pulley 13 away from FRP sheet material one end; Power transmission wire rope 12 walks around each stretching pulley 13 and each angle pulley 2, and these power transmission wire rope 12 two ends are connected with two pull bars 11 of described jack 10 respectively.Mechanical spiral jack stroke range is between 0 ~ 180mm, and horizontal thrust scope is 0 ~ 160kN.Described corrugated sheet fixture I, II 3,7 is formed by the intermeshing waveform tooth plate of two panels, and is at least connected as one by a bolt.Described frame 6 is welded by channel-section steel, bolt is formed by connecting, and corner, bottom is provided with leveling and the movable pulley 9 with locking function.
When the present invention specifically uses: need first to pull jack 10 to be strained by the FRP sheet material 5 after clamping, make dynamometer 8 show a little fixed value, then displacement meter 1 is returned to zero, before each stretch-draw, all adopt this fixed value to be the initial value that displacement meter 1 returns to zero.Slow jack for moving lever 11 in stretching process, observes the stretch-draw force value of dynamometer display, constantly until reach stretching force controlling value.
Jack 10 bottom frame 6 produces thrust and pulls power transmission wire rope 12 under the movement of jack lever 11, power transmission wire rope 12 under the adjustment of stretching pulley 13 by tension uniform, placed in the middle pass to corrugated sheet fixture I 3.First FRP sheet material for stretch-draw clamps by corrugated sheet fixture I 3, sheet material two ends extend in both sides corrugated sheet fixture I, II 3,7 respectively, be wound around the movable monolithic waveform tooth plate in outside one week simultaneously, then screw fastening bolt clamping FRP sheet material, guarantee that slippage, shear failure do not occur FRP sheet material 5 in the process of stretch-draw.Because corrugated sheet fixture II 7 is fixed, the corrugated sheet fixture I 3 of clamping strains FRP sheet material 5 under the pulling of power transmission wire rope 3, FRP sheet material 5 is driven to strain when corrugated sheet fixture I 3 moves downwards, when corrugated sheet fixture I 3 moves down and is pressed onto on displacement meter 1 contact pilotage, just can read deflection by data collecting system, namely show the stretching force acted on FRP sheet material 5 in real time.
The present invention produces stretching force by jack, rely on anchor themselves, stretching force can be controlled accurately to the stretch-draw system of FRP sheet material Shi Hanzhang, both the secondary damage to ruggedized construction had been avoided, immediately can directly show pre-stress FRP stretching force and deflection again, there is simple, general feature.
Claims (5)
1. for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, comprise frame (6), jack (10), corrugated sheet fixture, displacement meter (1) and dynamometer (8), it is characterized in that: jack (10) level is located on the adapting position of frame (6) bottom, and frame (6) both upper ends thereof is respectively equipped with guide rolls (4); Described guide rolls (4) walked around by FRP sheet material (5), and its two ends are sandwiched in corrugated sheet fixture I, II (3,7) respectively; Parallelly on the fixed head of frame (6) one end adapting position be provided with a pair angle pulley (2); The adapting position of this terminal frame (6) column is provided with contact pilotage displacement meter upward (1); Bottom frame (6) other end, adapting position is provided with dynamometer (8); This dynamometer (8) is connected away from FRP sheet material one end with described corrugated sheet fixture II (7), and described corrugated sheet fixture I (3) is provided with a pair stretching pulley (13) away from FRP sheet material one end; Power transmission wire rope (12) walks around each stretching pulley (13) and angle pulley (2), and these power transmission wire rope (12) two ends are connected with two pull bars (11) of described jack (10) respectively.
2. according to claim 1 for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, it is characterized in that described jack (10) is mechanical spiral jack, and stroke range is between 0 ~ 180mm, horizontal thrust scope is 0 ~ 160kN.
3. according to claim 1 for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, it is characterized in that described corrugated sheet fixture I, II (3,7) is formed by the intermeshing waveform tooth plate of two panels, and be at least connected as one by a bolt.
4. according to claim 1 for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, it is characterized in that described frame (6) is welded by channel-section steel or bolt is formed by connecting, corner, bottom is provided with leveling and movable pulley (9).
5. according to claim 4 for the machine drawing of FRP fixing quantity self-anchoring type prestressing force, it is characterized in that described movable pulley (9) is with locking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554300.4A CN104264998B (en) | 2014-10-20 | 2014-10-20 | For the machine drawing of FRP fixing quantity self-anchoring type prestressing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554300.4A CN104264998B (en) | 2014-10-20 | 2014-10-20 | For the machine drawing of FRP fixing quantity self-anchoring type prestressing force |
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| Publication Number | Publication Date |
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| CN104264998A CN104264998A (en) | 2015-01-07 |
| CN104264998B true CN104264998B (en) | 2016-04-13 |
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| CN201410554300.4A Expired - Fee Related CN104264998B (en) | 2014-10-20 | 2014-10-20 | For the machine drawing of FRP fixing quantity self-anchoring type prestressing force |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507169B (en) * | 2016-01-16 | 2017-05-24 | 哈尔滨工业大学 | Tensioning and anchoring device for reinforcing reinforced concrete bridge through prestress FRP(fiber reinforced plastic) cloth and reinforcing method |
| CN105804425A (en) * | 2016-02-18 | 2016-07-27 | 沈阳建筑大学 | Construction method for reinforcing T-beam through partially-bonded prestressed FRP |
| CN106013835A (en) * | 2016-06-16 | 2016-10-12 | 陕西通宇新材料有限公司 | Multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing |
| CN113916184A (en) * | 2021-10-25 | 2022-01-11 | 中国电建集团成都勘测设计研究院有限公司 | Improved multipoint displacement meter sensor connecting device and connecting method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467213U (en) * | 2011-08-03 | 2012-10-03 | 宁夏路桥工程股份有限公司 | Automatic control device of pre-stress tensioning device |
| CN202745405U (en) * | 2012-08-27 | 2013-02-20 | 郑州大学 | Prestress application device for FRP ribs outside reinforced concrete slab body |
| CN204152215U (en) * | 2014-10-20 | 2015-02-11 | 沈阳建筑大学 | For the machine drawing of FRP fixing quantity self-anchoring type prestressing force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005155212A (en) * | 2003-11-27 | 2005-06-16 | Yoko Akiyama | Tensioning system for long fibrous reinforcing material |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467213U (en) * | 2011-08-03 | 2012-10-03 | 宁夏路桥工程股份有限公司 | Automatic control device of pre-stress tensioning device |
| CN202745405U (en) * | 2012-08-27 | 2013-02-20 | 郑州大学 | Prestress application device for FRP ribs outside reinforced concrete slab body |
| CN204152215U (en) * | 2014-10-20 | 2015-02-11 | 沈阳建筑大学 | For the machine drawing of FRP fixing quantity self-anchoring type prestressing force |
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| CN104264998A (en) | 2015-01-07 |
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