CN204001812U - Pre-stressed carbon fiber plate tensioning equipment - Google Patents
Pre-stressed carbon fiber plate tensioning equipment Download PDFInfo
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- CN204001812U CN204001812U CN201420455721.7U CN201420455721U CN204001812U CN 204001812 U CN204001812 U CN 204001812U CN 201420455721 U CN201420455721 U CN 201420455721U CN 204001812 U CN204001812 U CN 204001812U
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Abstract
The utility model discloses a kind of pre-stressed carbon fiber plate tensioning equipment, comprise fixed end base plate, stretching end base plate and be arranged on respectively fixed end base plate and stretching end base plate on two cover ground tackles, ground tackle comprises rectangular plate shape structure, train wheel bridge and lower plate, offer the wedged hole of level at rectangular plate shape structure middle part, described train wheel bridge and lower plate are the wedge structure that section configuration is right-angled trapezium, angle between inclined-plane and the horizontal plane of described train wheel bridge or lower plate is than the little 0.5-1 ° of angle between wedged hole end face or bottom surface and horizontal plane, its advantage is: clamp carbon fiber board by using train wheel bridge and lower plate to coordinate with wedged hole, between train wheel bridge and lower plate and wedged hole, there is the differential seat angle of 0.5-1 ° simultaneously, effectively prevent notch effect, avoid cutting off carbon fiber board in stretching process, and fixed end of the present utility model and stretching end adopt simple structure to be fixed, convenient construction, and can greatly improve efficiency of construction.
Description
Technical field
The utility model relates to a kind of pre-stressed carbon fiber plate tensioning equipment.
Background technology
Along with social development, steel work has become one of primary structure form of engineering construction, they in use, due to the error of design and construction, the erosion of natural environment,, can there is various defects, damage and distortion in the destruction of external loads effect, disaster effect and human factor etc., the supporting capacity of structure or member is declined, be accumulated to a certain degree and will lose efficacy.Consider the scarcity of social resources and the economy of engineering construction, these steel work or member can not be declared retired once appearance damage, simultaneously, because the damage of structure has locality and multiple feature, in order to ensure structure energy trouble free service, avoid the wasting of resources, must structure or the member of damage be reinforced and be repaired, extend its application life.Data shows according to statistics, and China has 50% town buildings to step into the ageing step, the reparation to structure and reinforce imperative.
Traditional reinforcement means of steel work mainly contains shaped steel or steel welding, bolt connection, riveted joint and bonding etc., although these methods can have been improved the stressing conditions of original structure rejected region, simultaneously again can be with serving new problem,
Such as: when welding, high temperature action makes welding position performance degradation, has weld defect, produces new crackle, and inside exists welding residual stress; Bolt is connected to perforate on mother metal, occurs that new stress is concentrated, and plain bolt is easily loosening under dynamic load, and high-strength bolt easily produces stress relaxation, has reduced the consolidation effect of structure.How to adopt new material or new technology to carry out ruggedized construction, with improve structure functional performance, extending structure application life and reduce and safeguard that loss is field of civil engineering good problem to study.
Carbon fiber is more than 90% fibrous inorganic carbide compound as a kind of phosphorus content, has that tensile strength is high, high temperature resistant, corrosion-resistant, antifatigue, good conductivity and a characteristic such as coefficient of thermal expansion is little.Based on the properties of carbon fiber excellence, Carbon Fiber Technology can demonstrate long-term consolidation effect, is mainly used in the enhancing of reparation, reinforcing, reinforcement and the newly-built structure of built structure etc., can significantly reduce integrated maintenance cost.Research shows
, carbon fibre reinforced composite (be Carbon Fiber Reinforced Plastics, be called for short carbon fiber board) is reinforced steel work good effect, carbon fiber board light weight and thin, do not increase the deadweight of reinforced structure, do not affect usage space, after reinforcing, leave no trace; Not corrosion, corrosion-resistant, without considering to reinforce the anticorrosion of position; Easy construction, does not have wet trade, does not need Large Construction facility and on-the-spot fixation means; And the series of problems that the method that the most important thing is the reinforcing steel work that can avoid traditional is brought.
At present, mainly concentrate on concrete structure about research and the application of carbon fiber board ruggedized construction, and obtained good achievement in research.The form application that carbon fiber board is reinforced is outer subsides method and embedding inlay technique more widely, consider the globality feature of steel work, it is comparatively suitable that outer subsides are reinforced, but less to the research of carbon fiber board reinforcing steel work, and reinforce steel work as main taking non-prestressed carbon fiber board.Reinforce compared with steel work with pre-stressed carbon fiber plate, the carbon fiber board of common not Prestressing is reinforced steel work a lot of defects, the adverse effect of bringing as " common mounting method " secondary loading; Easily there is stripping damage in bonding interface; In the service load of structure, the reinforcing bar intensity that reaches capacity, the intensity of carbon fiber board is brought into play less than 20%, cannot make full use of the high-strength feature of sheet material etc., and these defects have limited development and application that carbon fiber board is reinforced steel work to a certain extent.If first carbon fiber board is applied to prestressing force, again the carbon fiber board after stretch-draw is pasted on steel work, can make carbon fiber board work earlier, overcome above defect, rigidity and the anti-bending bearing capacity that can not only improve structure, obtain better consolidation effect, can also give full play to the high-strength efficient feature of carbon fiber board, reduce material usage, reduce reinforcement cost.
Up to now, carbon fibre material is in fibrous material, to be applied to the earliest the novel hitech materials that engineering field, technology are the most ripe, use amount is maximum, and the performance characteristics of carbon fiber board in Structural Engineering application is as follows:
(1) tensile strength is high.
(2) corrosion resistance is good, good endurance.Carbon fiber board has better anticorrosive and endurance quality than plain bars, if be used for substituting common iron, can reduce reinforcement corrosion, reduces the economic loss of bringing thus.High temperature resistant good with cryogenic property, in addition, carbon fiber board also has the performance such as oil resistant, radioresistance.
(3) density is little, quality is light.Carbon fiber board density is about 1/4th of steel density, and quality is about 1/5th of steel, increases hardly dead load for the reinforcing of structure while maintenance.
(4) there is the coefficient of thermal expansion close with concrete.Similar with reinforcing bar, can ensure the ability with concrete co-ordination.
(5) shear strength is low, does not possess bending performance.Much smaller than its tensile strength, when stressed, easily there is shear failure, therefore when carbon fiber board is applied prestressing force or uses it for prestressed structure, need especially note ground tackle, the impact of fixture on its performance in shear strength.
(6) modulus of elasticity is little.Want carbon fiber board to bring into play high-strength feature, need to make it have larger distortion, cannot give full play to its high-strength performance and do not apply prestressed carbon fiber board, utilization rate is very low.
(7) solenoid isolation is good, and conductivity of heat and electric conductivity are low.Reinforced concrete structure easily produces some adverse effects to the electromagnetic field of total, carbon fiber board is non-magnetic material, alternative reinforcing bar can be eliminated these impacts, is applied to the structure of particular/special requirement as significant in the engineerings such as traffic, communication, seismological observation, magnetic suspension train.Can also under certain temperature condition, be used as thermal insulation material.
(8) intelligent from perception.Producing in the process of carbon fiber board, Fibre Optical Sensor can be buried and is placed in the middle of carbon fiber and resin, realize monitoring by Fibre Optical Sensor; Or utilize carbon fiber variation of resistance in loading process to obtain ess-strain situation.
(9) expensive.Because manufacturer is less, technical requirements is high, and price is more expensive, but along with the maturation of carbon fiber board technology, the raising of production technology, the price of carbon fiber board has decline space.
(10) moulding process is flexible, and speed of application is fast, is easy to install.The density of carbon fiber board is only 25% left and right of steel, and quality is light, all simple, convenient, easy than steel member in the operations such as transport, installation.
In ground tackle for the exploitation of carbon fiber board plate, there are some problems at present, such as ground tackle size is large, construction is inconvenient etc., and external ground tackle designs generally to technical know-how, be everlasting construction before completed anchorage installation, expense is high and dumb, domestic ground tackle design adopts bolt that the upper and lower pressing plate of ground tackle is coupled together mostly, when construction, will at the bottom of beam, connect ground tackle by erection bolt, complex procedures, construction inconvenience.The carbon fiber board ground tackle of external development and production substantially meets actual demands of engineering in performance, but in the time reaching capacity state, ground tackle often occurs losing efficacy in carbon fiber board in advance, illustrates and in the research and development of carbon beaverboard anchorage, need further raising.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of pre-stressed carbon fiber plate tensioning equipment, dwindles ground tackle size, and install at scene, convenient construction, and structure is simpler, improves efficiency of construction.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of pre-stressed carbon fiber plate tensioning equipment, comprise fixed end base plate, stretching end base plate and be arranged on respectively fixed end base plate and stretching end base plate on two cover ground tackles, described fixed end base plate is provided with fixed end support, described fixed end support is horizontally disposed U-shaped frame construction, its middle part is fixed with the fixed end limited block parallel with U-shaped base of frame, described ground tackle is located in the enclosure space of fixed end limited block and the formation of U-shaped framework, described fixed end limited block middle part is provided with the rectangular opening for wearing carbon fiber board plate, described stretching end base plate is provided with stretching end support, described stretching end support comprises two slideways that be arranged in parallel, described two slideways middle part is fixed with stretching end fixed block, set up separately by movable block and back-up block described stretching end fixed block both sides, between described back-up block and stretching end fixed block, be provided with hydraulic cylinder, described movable block and stretching end fixed block opposite side are provided with ground tackle, between described back-up block and movable block, be provided with pull bar.
Described movable block and back-up block and two slideways are slidably matched, described pull bar comprises two screw rods, two screw rods be arranged in parallel and two ends are connected with movable block and back-up block corresponding end respectively, described stretching end fixed block two ends are provided with horizontal through hole, and described two screw rods pass respectively the through hole setting at stretching end fixed block two ends.
Described ground tackle comprises rectangular plate shape structure, train wheel bridge and lower plate, offer the wedged hole of level at rectangular plate shape structure middle part, described wedged hole is that section configuration is the through hole of isosceles trapezoid, described train wheel bridge and lower plate are the wedge structure that section configuration is right-angled trapezium, described train wheel bridge and lower plate are symmetrical arranged with respect to the plane of symmetry of wedged hole end face and bottom surface, and the angle between inclined-plane and the horizontal plane of described train wheel bridge or lower plate is than the little 0.5-1 ° of angle between wedged hole end face or bottom surface and horizontal plane.
Described fixed end support is provided with fixed end portable plate with two relative one end of slideway that are positioned on stretching end base plate, and described fixed end portable plate is horizontally disposed with, and its one end relative to fixed end limited block is hinged by means of horizontally disposed bearing pin and fixed end support both sides.
Two slideways and the fixed end support opposite end that on described stretching end base plate, arrange are provided with stretching end portable plate, and described stretching end portable plate one end relative to movable block is by means of horizontally disposed bearing pin and two slideway hinged inside.
Described portable plate and gripper shoe two ends all coordinate with described two slideway inner slide, and described hydraulic cylinder base is fixedly connected with stretching end fixed head.
The beneficial effect that adopts technique scheme to produce is: clamp carbon fiber board by using train wheel bridge and lower plate to coordinate with wedged hole, between train wheel bridge and lower plate and wedged hole, there is the differential seat angle of 0.5-1 ° simultaneously, effectively prevent notch effect, avoid cutting off carbon fiber board in stretching process, and fixed end of the present utility model and stretching end adopt simple structure to be fixed, stretching end adopts hydraulic cylinder as executive component, simple in structure, convenient construction, and can greatly improve efficiency of construction.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is anchor device structure schematic diagram;
In the accompanying drawings: 1, fixed end base plate; 2, fixed end support; 3, ground tackle; 4, fixed end limited block; 5, fixed end portable plate; 6, carbon fiber board; 7, stretching end base; 8, stretching end portable plate; 9, movable fast; 11, stretching end fixed block; 12, hydraulic cylinder; 13, back-up block; 14, pull bar.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model is disclosed is a kind of pre-stressed carbon fiber plate tensioning equipment as shown in Figure 1, comprise fixed end base plate 1, stretching end base plate 7 and be arranged on respectively fixed end base plate 1 and stretching end base plate 7 on two cover ground tackles 3, fixed end base plate 1 is provided with fixed end support 2, fixed end support 2 is horizontally disposed U-shaped frame construction, its middle part is fixed with the fixed end limited block 4 parallel with U-shaped base of frame, ground tackle 3 is located in the enclosure space of fixed end limited block 4 and the formation of U-shaped framework, fixed end limited block 4 middle parts are provided with the rectangular opening for wearing carbon fiber board plate, stretching end base plate 7 is provided with stretching end support, stretching end support comprises two slideways that be arranged in parallel, article two, slideway middle part is fixed with stretching end fixed block 11, set up separately by movable block 9 and back-up block 13 stretching end fixed block 11 both sides, between back-up block 13 and stretching end fixed block 11, be provided with hydraulic cylinder 12, movable block 9 is provided with ground tackle 3 with stretching end fixed block 11 opposite sides, between back-up block 13 and movable block 9, be provided with pull bar 14, the fixture of stretching end and fixed end is installed on base plate, in stretching process, can first floor be fixed, then carbon fiber board two ends are fixed and can be realized stretch-draw with the ground tackle of fixed end and stretching end respectively, mounting structure is simple, easy to use.
Movable block 9 and back-up block 13 and two slideways are slidably matched, pull bar 14 comprises two screw rods, two screw rods be arranged in parallel, and two ends are connected with movable block 9 and back-up block 13 corresponding end respectively, stretching end fixed block 11 two ends are provided with horizontal through hole, two screw rods pass respectively the through hole setting at stretching end fixed block 11 two ends, portable plate and gripper shoe two ends all coordinate with two slideway inner slide, hydraulic cylinder 12 bases are fixedly connected with stretching end fixed head, in stretching process, hydraulic cylinder is (left side and right side are as the criterion with the position relationship of accompanying drawing 1) pushing tow back-up block to the right, owing to being connected by screw rod between back-up block and movable block, therefore at back-up block to the right in moving process, movable block drives the ground tackle of stretching end to move to the right, in order to guarantee to keep afterwards to a certain extent stretch-draw in carbon fiber board stretch-draw, be positioned at the supporting nut that arranges of stretching end fixed block right positions at screw rod, after stretch-draw, nut item stretching end fixed block one side is tightened.
Ground tackle 3 comprises rectangular plate shape structure, train wheel bridge and lower plate, offer the wedged hole of level at rectangular plate shape structure middle part, wedged hole is that section configuration is the through hole of isosceles trapezoid, train wheel bridge and lower plate are the wedge structure that section configuration is right-angled trapezium, train wheel bridge and lower plate are symmetrical arranged with respect to the plane of symmetry of wedged hole end face and bottom surface, angle between inclined-plane and the horizontal plane of train wheel bridge or lower plate is than the little 0.5-1 ° of angle between wedged hole end face or bottom surface and horizontal plane, ground tackle adopts the mode of train wheel bridge and lower plate combination, due to train wheel bridge and lower plate are arranged in wedged hole, in the time that Driven by Hydraulic Cylinder back-up block carries out stretch-draw to carbon fiber board, train wheel bridge and lower plate clamp gradually carbon fiber board under the effect of wedged hole end face and bottom surface, in order to prevent the existing notch effect of existing tension ground tackle, to the differential seat angle of 0.5 degree be set between train wheel bridge and lower plate and wedged hole end face and bottom surface, when train wheel bridge end face after stretch-draw to a certain extent just in time contacts with bottom surface with wedged hole end face with lower plate bottom surface, prevent from damaging carbon fiber board.
Fixed end support 2 is provided with fixed end portable plate 5 with two relative one end of slideway that are positioned on stretching end base plate 7, fixed end portable plate 5 is horizontally disposed with, its one end relative to fixed end limited block 4 is hinged by means of horizontally disposed bearing pin and fixed end support 2 both sides, two slideways and fixed end support 2 opposite ends that on stretching end base plate 7, arrange are provided with stretching end portable plate 8, stretching end portable plate 8 one end relative to movable block 9 is by means of horizontally disposed bearing pin and two slideway hinged inside, fixed end portable plate and stretching end portable plate can rotate with respect to fixed end support and two slideways, and at fixed end portable plate and stretching end portable plate middle part, rectangular through-hole is set, in stretching process, carbon fiber board is arranged in rectangular through-hole, can assist and carry out carbon fiber board stickup.
In a word, the utility model clamps carbon fiber board by using train wheel bridge and lower plate to coordinate with wedged hole, between train wheel bridge and lower plate and wedged hole, there is the differential seat angle of 0.5-1 ° simultaneously, effectively prevent notch effect, avoid in stretching process, cutting off carbon fiber board, and fixed end of the present utility model and stretching end adopt simple structure to be fixed, stretching end adopts hydraulic cylinder as executive component, simple in structure, convenient construction, and can greatly improve efficiency of construction.
Claims (6)
1. a pre-stressed carbon fiber plate tensioning equipment, it is characterized in that: comprise fixed end base plate (1), stretching end base plate (7) and be arranged on respectively fixed end base plate (1) and stretching end base plate (7) on two cover ground tackles (3), described fixed end base plate (1) is provided with fixed end support (2), described fixed end support (2) is horizontally disposed U-shaped frame construction, its middle part is fixed with the fixed end limited block (4) parallel with U-shaped base of frame, described ground tackle (3) is located in the enclosure space of fixed end limited block (4) and the formation of U-shaped framework, described fixed end limited block (4) middle part is provided with the rectangular opening for wearing carbon fiber board, described stretching end base plate (7) is provided with stretching end support, described stretching end support comprises two slideways that be arranged in parallel, described two slideways middle part is fixed with stretching end fixed block (11), set up separately by movable block (9) and back-up block (13) described stretching end fixed block (11) both sides, between described back-up block (13) and stretching end fixed block (11), be provided with hydraulic cylinder (14) (12), described movable block (9) is provided with ground tackle (3) with stretching end fixed block (11) opposite side, between described back-up block (13) and movable block (9), be provided with pull bar (14).
2. pre-stressed carbon fiber plate tensioning equipment according to claim 1, it is characterized in that: described movable block (9) and back-up block (13) are slidably matched with two slideways, described pull bar (14) comprises two screw rods, two screw rods be arranged in parallel and two ends are connected with movable block (9) and back-up block (13) corresponding end respectively, described stretching end fixed block (11) two ends are provided with horizontal through hole, and described two screw rods pass respectively the through hole setting at stretching end fixed block (11) two ends.
3. pre-stressed carbon fiber plate tensioning equipment according to claim 2, it is characterized in that: described ground tackle (3) comprises rectangular plate shape structure, train wheel bridge and lower plate, offer the wedged hole of level at rectangular plate shape structure middle part, described wedged hole is that section configuration is the through hole of isosceles trapezoid, described train wheel bridge and lower plate are the wedge structure that section configuration is right-angled trapezium, described train wheel bridge and lower plate are symmetrical arranged with respect to the plane of symmetry of wedged hole end face and bottom surface, angle between inclined-plane and the horizontal plane of described train wheel bridge or lower plate is than the little 0.5-1 ° of angle between wedged hole end face or bottom surface and horizontal plane.
4. pre-stressed carbon fiber plate tensioning equipment according to claim 3, it is characterized in that: described fixed end support (2) is provided with fixed end portable plate (5) with two relative one end of slideway that are positioned on stretching end base plate (7), described fixed end portable plate (5) is horizontally disposed with, and it is hinged by means of horizontally disposed bearing pin and fixed end support (2) both sides with the relative one end of fixed end limited block (4).
5. pre-stressed carbon fiber plate tensioning equipment according to claim 4, it is characterized in that: two slideways and fixed end support (2) opposite end that described stretching end base plate (7) is upper to be arranged are provided with stretching end portable plate (8), described stretching end portable plate (8) with the relative one end of movable block (9) by means of horizontally disposed bearing pin and two slideway hinged inside.
6. pre-stressed carbon fiber plate tensioning equipment according to claim 5, is characterized in that: described portable plate and gripper shoe two ends all coordinate with described two slideway inner slide, and described hydraulic cylinder (12) base is fixedly connected with stretching end fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455721.7U CN204001812U (en) | 2014-08-13 | 2014-08-13 | Pre-stressed carbon fiber plate tensioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455721.7U CN204001812U (en) | 2014-08-13 | 2014-08-13 | Pre-stressed carbon fiber plate tensioning equipment |
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| Publication Number | Publication Date |
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| CN204001812U true CN204001812U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420455721.7U Expired - Fee Related CN204001812U (en) | 2014-08-13 | 2014-08-13 | Pre-stressed carbon fiber plate tensioning equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332513A (en) * | 2015-12-11 | 2016-02-17 | 招商局重庆交通科研设计院有限公司 | Curved plate-type carbon fiber plate anchor device tensioning system |
| CN105369746A (en) * | 2015-12-02 | 2016-03-02 | 洛阳双瑞特种装备有限公司 | Pre-stress carbon fiber reinforcing tensioning bending device |
| CN106592999A (en) * | 2016-12-08 | 2017-04-26 | 海宁安捷复合材料有限责任公司 | Reinforcement system for pre-stressed carbon fiber plate |
| CN111285600A (en) * | 2020-03-31 | 2020-06-16 | 北方夜视技术股份有限公司 | Positioning device, slicing method and slicing detection device for fixing spatial position of MPO screen segment |
-
2014
- 2014-08-13 CN CN201420455721.7U patent/CN204001812U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369746A (en) * | 2015-12-02 | 2016-03-02 | 洛阳双瑞特种装备有限公司 | Pre-stress carbon fiber reinforcing tensioning bending device |
| CN105332513A (en) * | 2015-12-11 | 2016-02-17 | 招商局重庆交通科研设计院有限公司 | Curved plate-type carbon fiber plate anchor device tensioning system |
| CN106592999A (en) * | 2016-12-08 | 2017-04-26 | 海宁安捷复合材料有限责任公司 | Reinforcement system for pre-stressed carbon fiber plate |
| CN111285600A (en) * | 2020-03-31 | 2020-06-16 | 北方夜视技术股份有限公司 | Positioning device, slicing method and slicing detection device for fixing spatial position of MPO screen segment |
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| C14 | Grant of patent or utility model | ||
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| 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: 20160813 |