CN104153584A - Tensioned anchorage device and using method of tensioned anchorage device - Google Patents
Tensioned anchorage device and using method of tensioned anchorage device Download PDFInfo
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- CN104153584A CN104153584A CN201410418606.7A CN201410418606A CN104153584A CN 104153584 A CN104153584 A CN 104153584A CN 201410418606 A CN201410418606 A CN 201410418606A CN 104153584 A CN104153584 A CN 104153584A
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Abstract
The invention provides a tensioned anchorage device and a using method of the tensioned anchorage device. The tensioned anchorage device comprises a fixed end structure, a tensioned end structure and a fiber plate, wherein the fixed end structure is provided with a fixed end anchorage base, and a fixed end fixture is connected to the fixed end anchorage base; the tensioned end structure is provided with a tensioned end anchorage base, two tensioned rods are arranged on the tensioned end anchorage base in a penetrated mode, the ends, far away from the fixed end structure, of the two tensioned rods are connected with a locking nut and a rear counter-force plate, the locking nut abuts against the tensioned end anchorage base, and a plurality of jacks are arranged between the rear counter-force plate and the tensioned end anchorage base side by side; one end of the fiber plate is connected with a tensioned end fixture, the other end of the fiber plate is connected with the fixed end fixture, and the tensioned end fixture is connected with the ends, close to the fixed end structure, of the two tensioned rods. By means of the tensioned anchorage device and the using method of the tensioned anchorage device, reliable connection between the fiber plate and a structural object can be achieved, the tensioned uniformity of the fiber plate is guaranteed, the tensioned anchorage device is small in size, flexible in arrangement and rapid and convenient to construct.
Description
Technical field
The present invention has about a kind of stretching and anchoring device and using method thereof, especially has stretching and anchoring device and the using method thereof applied about in a kind of structural fortification field.
Background technology
At present, high strength fibre sheet material, as a kind of good tensile materials, has been widely used in structural fortification field.From the angle of reinforce of structure effect, fibrous plate is directly pasted on to the consolidation effect on works surface not obvious, and destroys fibrous plate when serious at works and easily peel off; And utilize the two ends of metal anchors fixture gripping fibers sheet material, to fibrous plate apply prestressing force and the consolidation effect that connects with works very remarkable, anchoring property is also very reliable.
Existing anchor clamp can produce the concentrated phenomenon of stress in the time of gripping fibers sheet material, can make fibrous plate produce local shear failure, or produce relative slippage and make fibrous plate skid off anchor clamp.The anchor clamp that this anchoring efficiency is lower can not give full play to reinforcement material intensity, caused waste of material, and existing anchor clamp is bulky, both limited reinforcing design degree of freedom and flexibility, be unfavorable for on-the-spot installation, affected again works below headroom and overall appearance.
The tensioning rollering fastening system being formed by this anchor clamp, because anchor clamp itself is bulky, just cause tensioning rollering fastening system entirety too heavy, huge and complicated, in order to meet 25 tons of above load of tensioning requirements, this tensioning rollering fastening system carries out fibrous plate conventionally adopting for example external diameter of single major diameter to be greater than the jack of 12cm in the process of stretch-draw, realizes the stretch-draw to fibrous plate.This tensioning rollering fastening system is general adopts concentric stretching mode to ensure each parts uniaxial force of tensioning rollering fastening system, limited by the structure of jack and stretching end anchorage, this system must cause fibrous plate away from works surface, the spacing on fibrous plate distance structure thing surface is generally greater than 6cm, makes fibrous plate be difficult to fix and be bonded to works surface; Press close to works surface though adopt eccentric stretching mode can realize fibrous plate, because jack axle center does not overlap and must cause tension rod flexural deformation and concentrated wear with the axle center of tension rod, fibrous plate.Therefore, existing tensioning rollering fastening system not only can increase on-the-spot installed and the difficulty of construction, reduces the mechanical property reliability of reinforcement system, and has occupied near headroom larger works or larger to works below traffic impact.
In addition, in existing tensioning rollering fastening system, the assembly of fiber plate stretch-draw end must be in factory the prefabricated stage first penetrate stretch-draw reaction plate, rear installation anchor clamp, the existence of stretch-draw reaction plate has increased the difficulty of coiling packaging on the one hand, on the one hand the stretch-draw reaction plate fibrous plate that easily weares and teares in assembly transportation.There is at present a kind of stretch-draw reaction plate to be connected by upper and lower two parts at thickness direction and assembled, on this stretch-draw reaction plate, default notch passes for fibrous plate, although it is assembled at the construction field (site) that this stretch-draw reaction plate can be realized, but the integral rigidity of the stretch-draw reaction plate that tipping forms is less, the splicing accuracy of stretch-draw reaction plate is difficult for ensureing, easily cause the stretch-draw reaction plate after assembled to occur distortion, dislocation and unbalance stress, thereby be difficult for ensureing the stretch-draw uniformity of fibrous plate.
Therefore, be necessary to provide a kind of new tensioning rollering fastening system and using method thereof, overcome above-mentioned defect.
Summary of the invention
The object of this invention is to provide a kind of stretching and anchoring device, it can realize reliable connection the between fiberboard and works, and ensures the stretch-draw uniformity of fiberboard, and its volume is little, and flexible arrangement is constructed convenient.
Another object of the present invention is to provide a kind of using method of stretching and anchoring device, and it can realize reliable connection the between fiberboard and works, and ensures the stretch-draw uniformity of fiberboard, and its volume is little, and flexible arrangement is constructed convenient.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
The invention provides a kind of stretching and anchoring device, described stretching and anchoring device comprises:
Fixed end structure, it has fixed end anchorage, on described fixed end anchorage, is connected with fixed end fixture;
Stretching end structure, it has stretching end anchorage, on described stretching end anchorage, be equipped with two tension rods, two described tension rods are connected with locking nut and rear reaction plate away from one end of described fixed end structure, described locking nut contact, on described stretching end anchorage, is provided with multiple jack between described rear reaction plate and described stretching end anchorage side by side;
Fiberboard, its one end is connected with stretching end fixture, and its other end is connected with described fixed end fixture, and described stretching end fixture is connected near one end of described fixed end structure with two described tension rods.
In a preferred embodiment, described stretching end fixture comprises:
Chuck body, its both sides convex with respectively hanger portion, and described hanger portion is provided with perforation, and described tension rod wears and is connected in described perforation, offers trapezoidal shape perforation in described chuck body, and one end of described fiberboard is located in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and described fiberboard is folded between described two intermediate plates.
In a preferred embodiment, the one side that described intermediate plate contacts with described fiberboard is provided with friction recess.
In a preferred embodiment, described friction recess is strip groove, grid groove or multiple concave point.
In a preferred embodiment, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
In a preferred embodiment, described fixed end fixture comprises:
Chuck body, on it, offer multiple connecting holes, described chuck body is located in described multiple connecting hole and is connected on the bottom surface of described fixed end anchorage by multiple bolts, in described chuck body, offer trapezoidal shape perforation, the other end of described fiberboard is located in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and the other end of described fiberboard is folded between described two intermediate plates.
In a preferred embodiment, described fixed end fixture comprises:
Fixed end anchor block, it is connected on the bottom surface of described fixed end anchorage, and the middle part of described fixed end anchor block offers groove;
Chuck body, offers trapezoidal shape perforation on it, the other end of described fiberboard is located in through described groove in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and the other end of described fiberboard is folded between described two intermediate plates.
In a preferred embodiment, the one side that described intermediate plate contacts with described fiberboard is provided with friction recess.
In a preferred embodiment, described friction recess is strip groove, grid groove or multiple concave point.
In a preferred embodiment, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
In a preferred embodiment, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
In a preferred embodiment, described stretching end anchorage is cuboid, and two described tension rods are located in the both sides of described stretching end anchorage.
In a preferred embodiment, described stretching end anchorage convexes with connecting portion downwards away from one end of described fixed end structure, and described two tension rods are located on described connecting portion.
The present invention also provides a kind of using method of stretching and anchoring device as above, and the using method of described stretching and anchoring device comprises the following steps:
Step 1): processing is polished, cleaned and is dried on works surface, smear one deck primary coat glue-line on described works surface afterwards;
Step 2): described stretching and anchoring device is arranged on described works surface by fixed end anchorage and stretching end anchorage, the fixed end fixture that fiberboard one end is connected is arranged on described fixed end anchorage, and the stretching end fixture that the described fiberboard other end is connected is connected on two tension rods of described stretching and anchoring device;
Step 3): expand multiple jack of described stretching and anchoring device, in the process of described fiberboard stretch-draw, lock the locking nut on described tension rod.
In a preferred embodiment, in described step 2) also comprise before step 1 '): the fixed end fixture of described stretching and anchoring device and stretching end fixture are connected to the two ends of described fiberboard, and by holding device, two intermediate plates of two of fixed end fixture intermediate plates and stretching end fixture are held out against in advance.
In a preferred embodiment, in described step 3) also comprise afterwards step 4): after described fiberboard stretch-draw puts in place, lock the locking nut on described tension rod, unload afterwards the rear reaction plate of multiple described jack and described stretching and anchoring device, and screw in standby mother at described locking nut rear, cut afterwards unnecessary tension rod.
In a preferred embodiment, in described step 2) in, on described works surface, offering two mounting grooves, described fixed end anchorage and described stretching end anchorage are arranged on respectively in described mounting groove.
Feature and the advantage of stretching and anchoring device of the present invention and using method thereof are: it is by being arranged on the multiple juxtaposed jack between rear reaction plate and stretching end anchorage, make in the situation that applying same stretching force, changing by the larger single jack of original diameter multiple jack that diameter is less into is arranged side by side, effectively reduce the distance between fiberboard distance structure thing surface, ensure that to greatest extent fiberboard and works surface are more approaching, be easy to paste and fix, to avoid the bonding interface generation between fiberboard and works to cause peeling off compared with large normal direction tensile stress.In addition, stretching end fixture and fixed end fixture that fiberboard two ends connect can directly be connected to respectively on tension rod and fixed end anchorage, the stretching end of fiberboard has saved stretch-draw reaction plate structure, make fiberboard prefabricated stage in factory, its two ends connect respectively the assembly forming after stretching end fixture and fixed end fixture and are beneficial to and coil and pack, easy damaged fiberboard not in transportation.This stretching and anchoring device, can realize reliable connection the between fiberboard and works, ensure the stretch-draw uniformity of fiberboard simultaneously, give full play to the high powerful feature of fiberboard, the power transmission of this stretching and anchoring device entirety is clear and definite, simple structure, parts are light and handy, flexible arrangement and constructability.After this stretching and anchoring device installation, the clear distance on its fiberboard distance structure thing surface can reach 0cm-5cm.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the top view of stretching and anchoring device the first embodiment of the present invention.
Fig. 2 is the lateral view of stretching and anchoring device the first embodiment of the present invention.
Fig. 3 is the top view of stretching and anchoring device the second embodiment of the present invention.
Fig. 4 is the lateral view of stretching and anchoring device the second embodiment of the present invention.
Fig. 5 is the top view of stretching and anchoring device of the present invention the 3rd embodiment.
Fig. 6 is the lateral view of stretching and anchoring device of the present invention the 3rd embodiment.
Fig. 7 is the top view of stretching end fixture first embodiment of stretching and anchoring device of the present invention.
Fig. 8 is the lateral view of stretching end fixture first embodiment of stretching and anchoring device of the present invention.
Fig. 9 is the top view of stretching end fixture second embodiment of stretching and anchoring device of the present invention.
Figure 10 is the lateral view of stretching end fixture second embodiment of stretching and anchoring device of the present invention.
Figure 11 is the schematic diagram of friction recess first embodiment of the clip surface of stretching and anchoring device of the present invention.
Figure 12 is the schematic diagram of friction recess second embodiment of the clip surface of stretching and anchoring device of the present invention.
Figure 13 is the schematic diagram of friction recess the 3rd embodiment of the clip surface of stretching and anchoring device of the present invention.
Figure 14 is the top view of fixed end fixture first embodiment of stretching and anchoring device of the present invention.
Figure 15 is the lateral view of fixed end fixture first embodiment of stretching and anchoring device of the present invention.
Figure 16 is the sectional view of fixed end fixture first embodiment of stretching and anchoring device of the present invention.
Figure 17 is the top view of the chuck body of fixed end fixture second embodiment of stretching and anchoring device of the present invention.
Figure 18 is the sectional view of the chuck body of fixed end fixture second embodiment of stretching and anchoring device of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Position relationship up and down is herein according to shown in Fig. 1.
Embodiment 1
As shown in Fig. 1-6, the invention provides a kind of stretching and anchoring device, it comprises fixed end structure 1, stretching end structure 2 and fiberboard 3, wherein: fixed end structure 1 has fixed end anchorage 11, on described fixed end anchorage 11, is connected with fixed end fixture 12; Stretching end structure 2 has stretching end anchorage 21, on described stretching end anchorage 21, be equipped with two tension rods 22, two described tension rods 22 are connected with locking nut 23 and rear reaction plate 24 away from one end of described fixed end structure 1, described locking nut 23 contacts, on described stretching end anchorage 21, are provided with multiple jack 25 between described rear reaction plate 24 and described stretching end anchorage 21 side by side; One end of fiberboard 3 is connected with stretching end fixture 31, and its other end is connected with described fixed end fixture 12, and described stretching end fixture 31 is connected near one end of described fixed end structure 1 with two described tension rods 22.
Specifically, the fixed end anchorage 11 of fixed end structure 1 is cuboid substantially, on it, offer multiple perforation, be equipped with an anchor bolt 111 in each perforation, this fixed end anchorage 11 is fixedly mounted on works 4 surfaces by those anchor bolts 111.In the present invention, can on works 4 surfaces, offer a mounting groove 41, fixed end anchorage 11 is arranged in this mounting groove 41; The fixed end fixture 12 of fixed end structure 1 is connected on fixed end anchorage 11, and the thickness of this fixed end fixture 12 is not more than 5cm.
The stretching end anchorage 21 of stretching end structure 2 is cuboid substantially, offers multiple perforation on it, is equipped with an anchor bolt 211 in each perforation, and this stretching end anchorage 21 is fixedly mounted on works 4 surfaces by those anchor bolts 211.In the present invention, can on works 4 surfaces, offer a mounting groove 42, stretching end anchorage 21 is arranged in this mounting groove 42.
On stretching end anchorage 21, be connected with two tension rods 22, in one embodiment, as shown in Fig. 3-6, stretching end anchorage 21 is cuboid, and two tension rods 22 are located in the both sides of stretching end anchorage 21; In another embodiment, as shown in Figure 1, 2, stretching end anchorage 21 convexes with 212, two tension rods 22 of connecting portion downwards away from one end of fixed end structure 1 and is located on this connecting portion 212.This tension rod 22 is threaded rod, and each tension rod 22 is connected with locking nut 23 away from one end of fixed end structure 1, and this locking nut 23 is resisted against on stretching end anchorage 21; Further, reaction plate 24 after two tension rods 22 are also connected with away from one end of fixed end structure 1, between this rear reaction plate 24 and stretching end anchorage 21, be folded with multiple jack that are arranged side by side 25, in the present invention, between rear reaction plate 24 and stretching end anchorage 21, be folded with two jack 25, the external diameter of each jack 25 is not more than 7cm, and stroke is not less than 10cm, adopts effective load of tensioning of these two juxtaposed small-size jacks 25 can reach more than 25 tons.
Fiberboard 3 is for reinforcing works 4, and its one end is connected with stretching end fixture 31, and its other end is connected and fixed end fixture 12.This stretching end fixture 31 is connected to two tension rods 22 one end near fixed end structure 1, and the thickness of stretching end fixture 31 is not more than 5cm; Fixed end fixture 12 is connected on fixed end anchorage 11.
The process that uses this stretching and anchoring device to carry out stretch-draw to fiberboard 3 is as follows: first, before this stretching and anchoring device is arranged on to works 4 surfaces, first processing is polished, is cleaned and is dried on works 4 surfaces, primary coat glue, without laitance and loosening fragment, is smeared on works 4 surfaces afterwards in guarantee works 4 surfaces.
After treating that above-mentioned preparation is complete, on works 4 surfaces, two positions place in a distance implants respectively multiple anchor bolts 111 and multiple anchor bolt 211, then on fixed end anchorage 11 and stretching end anchorage 21, after perforation, the two is penetrated respectively to anchor bolt 111 and anchor bolt 211 and is fixed on works 4 surfaces.Fixed end anchorage 11 and the direct contact structures thing of stretching end anchorage 21 4 surfaces can be installed if works 4 surfaces are comparatively smooth, if suitably polish or smear alignment material and carry out again fixed end anchorage 11 and stretching end anchorage 21 being arranged on works 4 surfaces after levelling in works 4 surface irregularity reply works 4 surfaces.After fixed end anchorage 11 and stretching end anchorage 21 install, rear reaction plate 24 is penetrated to two tension rods 22, two tension rods 22 are penetrated from the left side of stretching end anchorage 21 and passed from the right side of stretching end anchorage 21; The stretching end fixture 31 afterwards fiberboard 3 one end being connected is connected on two tension rods 22, the fixed end fixture 12 that fiberboard 3 other ends connect is connected on fixed end anchorage 11, then rotates two locking nuts 23 on tension rod 22 and makes fiberboard 3 in preliminary tensioned state.
After treating that this stretching and anchoring device installs, measure the stretch-draw headroom of the fixed end fixture 12 at fiberboard 3 two ends and the midline position of stretching end fixture 31 and two tension rods 22, guarantee that the fixture at fiberboard 3 two ends is identical in the stretch-draw headroom of same axis and two tension rods 22.Afterwards, smear adhesive glue stick at fiberboard 3 end faces, multiple jack that are arranged side by side 25 are installed between stretching end anchorage 21 and rear reaction plate 24, each jack 25 is carried out starting stretch-draw fiberboard 3 after centering, leveling.
In the process of stretch-draw fiberboard 3, adopt the locking nut 23 on hierarchical loading timely two tension rods 22 of jacking, monitor the stretch-draw headroom of two tension rods 22 simultaneously, guarantee fiberboard 3 uniform stressed all the time.After fiberboard 3 stretch-draw put in place, locking locking nut 23, guarantees that the stretch-draw headroom of two tension rods 22 is basic identical.Finally, unload multiple jack 25 and rear reaction plate 24, screw in standby mother at locking nut 23 rears, and cut the tension rod 22 of redundance, now complete to fiberboard 3 stretch-draw.Adopt this stretching and anchoring device should be taking symmetrical as principle to the stretch-draw of many fiberboards 3, one by one, stretch-draw fiberboard 3 alternately.
Stretching and anchoring device of the present invention, by being arranged on the multiple juxtaposed jack 25 between rear reaction plate 24 and stretching end anchorage 21, make in the situation that applying same stretching force, changing by the larger single jack of original diameter multiple jack that diameter is less into is arranged side by side, effectively reduce the distance between fiberboard 3 distance structure thing 4 surfaces, ensure that to greatest extent fiberboard 3 and works 4 surfaces approach, are easy to paste and fix more, to avoid the bonding interface generation between fiberboard 3 and works 4 to cause peeling off compared with large normal direction tensile stress.In addition, the stretching end fixture 31 that fiberboard 3 two ends connect can directly be connected to respectively on tension rod 22 and fixed end anchorage 11 with fixed end fixture 12, the stretching end of fiberboard 3 has saved stretch-draw reaction plate structure, make fiberboard 3 prefabricated stage in factory, the assembly that its two ends connect respectively stretching end fixture 31 and the 12 rear formation of fixed end fixture is beneficial to be coiled and packs, easy damaged fiberboard 3 not in transportation.This stretching and anchoring device, can realize reliable connection the between fiberboard 3 and works 4, ensure the stretch-draw uniformity of fiberboard 3 simultaneously, give full play to the high powerful feature of fiberboard 3, the power transmission of this stretching and anchoring device entirety is clear and definite, simple structure, parts are light and handy, flexible arrangement and constructability.After this stretching and anchoring device installation, the clear distance on its fiberboard 3 distance structure thing 4 surfaces can reach 0cm-5cm.
According to an embodiment of the invention, as shown in Fig. 7-10, described stretching end fixture 31 comprises chuck body 311 and two intermediate plates 312, wherein: the both sides of chuck body 311 convex with respectively hanger portion 313, described hanger portion 313 is provided with perforation 314, described tension rod 22 wears and is connected in described perforation 314, offers trapezoidal shape perforation 315 in described chuck body 311, and one end of described fiberboard 3 is located in described trapezoidal shape perforation 315; Two intermediate plates 312 are located in described trapezoidal shape perforation 315, and described fiberboard 3 is folded between described two intermediate plates 312.
Specifically, stretching end fixture 31 is made up of steel, chromium steel or manganese steel, and its chuck body 311 is substantially in T shape, and its thickness is not more than 5cm, offers perforation 314 in the hanger portion 313 that chuck body 311 both sides are convexly equipped with, and this perforation 314 wears fixing for tension rod 22.The middle part of this chuck body 311 offers trapezoidal shape perforation 315, and the axial direction of this trapezoidal shape perforation 315 is parallel with the axial direction of the perforation 314 of offering in hanger portion 313.One end of fiberboard 3 is located in this trapezoidal shape perforation 315, and is arranged with two wedge shape intermediate plates 312 in this trapezoidal shape perforation 315, and one end of fiberboard 3 is between two wedge shape intermediate plates 312.In the present invention, the direction that the halfpace bottom surface of the trapezoidal shape perforation 315 of offering in chuck body 311 is stretched towards fiberboard 3, like this so that fiberboard 3 can be connected more fastening with stretching end fixture 31 in the process stretching.In the present embodiment, the part 316 that the relative hanger of chuck body 311 portion 313 of stretching end fixture 31 protrudes can the direction as shown in Fig. 7 or Fig. 9 be connected to one end of fiberboard 3, this is not restricted, as long as ensure to be opened in the direction that the halfpace bottom surface of the trapezoidal shape perforation 315 in chuck body 311 is stretched towards fiberboard 3.Between the part 316 of this protrusion and hanger portion 313, can form the 45 straight chamfering structure of degree or circular arc chamfering structures as shown in Figure 9 as shown in Figure 7, can effectively reduce like this local stress, improve anchoring efficiency, this stretching end fixture 31 can ensure the clamping uniformity of fiberboard 3, its anchoring efficiency is more than 0.95, and after anchoring, the static(al) rupture strength of assembly can reach the more than 95% of fiberboard 3 ultimate tensile strengths.
This stretching end fixture 31 has possessed clamp structure and stretching-drawing structure simultaneously, save stretch-draw reaction plate structure, simplify the structure, reduced the volume of stretch-draw parts, be convenient to packaging, install and location, these stretching end fixture 31 anchoring properties are reliable, can give full play to the high powerful feature of composite fibre sheet material and ensure the clamping uniformity of sheet material, its build is light and handy, it is simple to make, simple and easy, dependable performance is installed.
Further, the one side that wedge shape intermediate plate 312 contacts with fiberboard 3 is provided with friction recess 317, the design of this friction recess 317, can improve the frictional force between wedge shape intermediate plate 312 and fiberboard 3, be fixed on the stable degree in chuck body 311 to improve fiberboard 3, in addition its can ensure frictional force transition that intermediate plate 312 transmits evenly, can not pinch off fiberboard 3 and wearing and tearing fiberboard 3 plate faces.As shown in Figure 11-13, this friction recess 317 can be the strip groove that is opened in intermediate plate 312 surfaces shown in Figure 11, or the grid groove that is opened in intermediate plate 312 surfaces shown in Figure 12, or the multiple concave points that are opened in intermediate plate 312 surfaces shown in Figure 13.
Further, wedge shape intermediate plate 312 is coated with adhesive layer with the one side that fiberboard 3 contacts, this adhesive layer is for wedging at intermediate plate 312 after trapezoidal shape perforation 315 with to be located in fiberboard 3 in trapezoidal shape perforation 315 bonding and fill gap, so that fiberboard 3 is connected with chuck body 311 is more firm.
According to an embodiment of the invention, as shown in Figure 14-16, and cooperation is consulted shown in Fig. 3-4, described fixed end fixture 12 comprises chuck body 121 and two intermediate plates 122, wherein: in chuck body 121, offer multiple connecting holes 123, described chuck body 121 is located in described connecting hole 123 and is connected on the bottom surface of described fixed end anchorage 11 by multiple bolts 124, in described chuck body 121, offer trapezoidal shape perforation 125, the other end of described fiberboard 3 is located in described trapezoidal shape perforation 125; Two intermediate plates 122 are located in described trapezoidal shape perforation 125, and the other end of described fiberboard 3 is folded between described two intermediate plates 122.
Specifically, fixed end fixture 12 is made up of steel, chromium steel or manganese steel, its chuck body 121 is cuboid substantially, the thickness of chuck body 121 is not more than 5cm, on it, offer multiple connecting holes 123, this chuck body 121 can be located in corresponding connecting hole 123 and this chuck body 121 is fixedly connected on the bottom surface of fixed end anchorage 11 by multiple bolts 124.The middle part of this chuck body 121 offers trapezoidal shape perforation 125, and the axial direction of this trapezoidal shape perforation 125 is perpendicular to the axial direction of connecting hole 123.The other end of fiberboard 3 is located in this trapezoidal shape perforation 125, and is arranged with two wedge shape intermediate plates 122 in this trapezoidal shape perforation 125, and the other end of fiberboard 3 is between two wedge shape intermediate plates 122.In the present invention, the direction that the halfpace bottom surface of the trapezoidal shape perforation 125 of offering in chuck body 121 is stretched towards fiberboard 3, like this so that fiberboard 3 can be connected more firm with fixed end fixture 12 in the process stretching.In the present embodiment, the interior chamfering of the trapezoidal shape perforation 125 of this chuck body 121 is arc structure, the corresponding position of intermediate plate 122 is also designed to identical arc structure, and the arc radius of this arc structure is 1mm-10mm, and arc structure can effectively reduce local stress, improve anchoring efficiency.This fixed end fixture 12 can ensure the clamping uniformity of fiberboard 3, and its anchoring efficiency is more than 0.95, and after anchoring, the static(al) rupture strength of assembly can reach the more than 95% of fiberboard 3 ultimate tensile strengths.
These fixed end fixture 12 anchoring properties are reliable, can give full play to the high powerful feature of fiberboard 3 and ensure the clamping uniformity of fiberboard 3, its simple structure, build are light and handy, reasonable stress, power transmission are clear and definite, frivolous profile can farthest ensure that fiberboard 3 is closely connected with works 4 surfaces, can adapt to different stretch-draw, anchoring structure condition.
Further, the one side that wedge shape intermediate plate 122 contacts with fiberboard 3 is provided with friction recess 126, the design of this friction recess 126, can improve the frictional force between wedge shape intermediate plate 122 and fiberboard 3, be fixed on the stable degree in chuck body 121 to improve fiberboard 3, in addition its can ensure frictional force transition that intermediate plate 122 transmits evenly, can not pinch off fiberboard 3 and wearing and tearing fiberboard 3 plate faces.As shown in Figure 11-13, this friction recess 126 can be the strip groove that is opened in intermediate plate 122 surfaces shown in Figure 11, or the grid groove that is opened in intermediate plate 122 surfaces shown in Figure 12, or the multiple concave points that are opened in intermediate plate 122 surfaces shown in Figure 13.
Further, wedge shape intermediate plate 122 is coated with adhesive layer with the one side that fiberboard 3 contacts, this adhesive layer is bored a hole behind 125 holes with to be located in fiberboard 3 in trapezoidal shape perforation 125 bonding for wedge trapezoidal shape at intermediate plate 122, so that fiberboard 3 is connected with chuck body 121 is more firm.
In another embodiment of the present invention, as shown in Figure 17-18, and Fig. 1-2, Fig. 5-6 are consulted in cooperation, this fixed end fixture 12 can comprise fixed end anchor block 126, chuck body 127 and two intermediate plates 128, wherein: fixed end anchor block 126 is connected on the bottom surface of described fixed end anchorage 11, and the middle part of described fixed end anchor block 126 offers groove; In chuck body 127, offer trapezoidal shape perforation 129, the other end of described fiberboard 3 is located in through described groove in described trapezoidal shape perforation 129; Two intermediate plates 128 are located in described trapezoidal shape perforation 129, and the other end of described fiberboard 3 is folded between described two intermediate plates 128.
Fixed end fixture in this embodiment, be with the difference of the fixed end fixture in above-described embodiment, in chuck body 127 in the present embodiment, do not offer connecting hole, it is not to be directly connected on fixed end anchorage 11, this chuck body 127 is realized and being fixed on fixed end anchorage 11 by fixed end anchor block 126, wherein, fixed end anchor block 126 for example can be connected on the bottom surface of fixed end anchorage 11 by the mode of welding.
As shown in Figure 1-2, fixed end anchor block 126 can be connected to the middle part, bottom surface of fixed end anchorage 11, and chuck body 127 contacts are on fixed end anchor block 126; In another embodiment, as shown in Fig. 5-6, fixed end anchor block 126 is connected to the bottom edge place of fixed end anchorage 11, and chuck body 127 contacts are on the end face of fixed end anchorage 11 and fixed end anchor block 126.Adopt the structure on the end face of fixed end anchorage 11 and fixed end anchor block 126 by chuck body 127 contacts shown in Fig. 5-6 to grip fiberboard 3, can make the distance on fiberboard 3 distance structure thing 4 surfaces the shortest, the clear distance on fiberboard 3 distance structure thing 4 surfaces in this embodiment is less than 2cm.
Embodiment 2
As shown in Fig. 1-18, the present invention also provides a kind of using method of stretching and anchoring device as tdescribed in embodiment 1, and structure, operating principle and the beneficial effect of described stretching and anchoring device are identical with embodiment 1, do not repeat them here.The using method of described stretching and anchoring device comprises the following steps:
Step 1): processing is polished, cleaned and is dried on works 4 surfaces, smear one deck primary coat glue-line on described works 4 surfaces afterwards;
Step 2): described stretching and anchoring device is arranged on works 4 surfaces by fixed end anchorage 11 and stretching end anchorage 21, the fixed end fixture 12 that fiberboard 3 one end are connected is arranged on the bottom surface of described fixed end anchorage 11, and the stretching end fixture 31 that described fiberboard 3 other ends are connected is connected on two tension rods 22 of described stretching and anchoring device;
Step 3): expand multiple jack 25 of described stretching and anchoring device, in the process of described fiberboard 3 stretch-draw, lock the locking nut 23 on described tension rod 22.
Specifically, in step 1) in, before this stretching and anchoring device is arranged on to works 4 surfaces, first processing is polished, is cleaned and is dried on works 4 surfaces, primary coat glue, without laitance and loosening fragment, is smeared on works 4 surfaces afterwards in guarantee works 4 surfaces.
Carry out step 2) also need before carry out step 1 '): the fixed end fixture 12 of stretching and anchoring device and stretching end fixture 31 are connected to the two ends of fiberboard 3, and by holding device, two intermediate plates 312 of two of fixed end fixture 12 intermediate plates 122 (or intermediate plate 128) and stretching end fixture 31 are held out against in advance.The control principle of this pretightning force is to ensure that intermediate plate clamps not damage again fiberboard firm time.
In step 2) in, treat step 1) and step 1 ') preparation complete after, on works 4 surfaces, two positions place in a distance implants respectively multiple anchor bolts 111 and multiple anchor bolt 211, then on fixed end anchorage 11 and stretching end anchorage 21, after perforation, the two penetrated respectively to anchor bolt 111 and anchor bolt 211 and be fixed on works 4 surfaces, can be by fixed end anchorage 11 and stretching end anchorage 21 direct contact structures thing 4 surfaces if works 4 surfaces are comparatively smooth, if suitably polish or smear alignment material and carry out again fixed end anchorage 11 and stretching end anchorage 21 being arranged on works 4 surfaces after levelling in works 4 surface irregularity reply works 4 surfaces.In a preferred embodiment, can on works 4 surfaces, offer mounting groove 41 and mounting groove 42, fixed end anchorage 11 and stretching end anchorage 21 are arranged on respectively in mounting groove 41 and mounting groove 42 to the distance on fiberboard 3 distance structure thing 4 surfaces of can relatively furthering like this.
After fixed end anchorage 11 and stretching end anchorage 21 install, rear reaction plate 24 is penetrated to two tension rods 22, two tension rods 22 are penetrated from the left side of stretching end anchorage 21 and passed from the right side of stretching end anchorage 21; The stretching end fixture 31 afterwards fiberboard 3 one end being connected is connected on two tension rods 22, the fixed end fixture 12 that fiberboard 3 other ends connect is connected on fixed end anchorage 11, rotates afterwards two locking nuts 23 on tension rod 22 and makes fiberboard 3 in preliminary tensioned state.
After treating that this stretching and anchoring device installs, measure the stretch-draw headroom of the fixed end fixture 12 at fiberboard 3 two ends and the midline position of stretching end fixture 31 and two tension rods 22, guarantee that the fixture at fiberboard 3 two ends is identical in the stretch-draw headroom of same axis and two tension rods 22.Afterwards, smear adhesive glue stick at fiberboard 3 end faces, multiple jack that are arranged side by side 25 are installed between stretching end anchorage 21 and rear reaction plate 24, each jack 25 is carried out starting carry out step 3 after centering, leveling stretch-draw fiberboard 3.
In step 3) in, in the process of stretch-draw fiberboard 3, adopt the locking nut 23 on hierarchical loading timely two tension rods 22 of jacking, monitor the stretch-draw headroom of two tension rods 22 simultaneously, guarantee fiberboard 3 uniform stressed all the time.After fiberboard 3 stretch-draw put in place, locking locking nut 23, guarantees that the stretch-draw headroom of two tension rods 22 is basic identical.
Further, in described step 3) also comprise afterwards step 4): after described fiberboard 3 stretch-draw put in place, lock the locking nut 23 on described tension rod 22, unload afterwards the rear reaction plate 24 of multiple described jack 25 and described stretching and anchoring device, and screw in standby mother at described locking nut 23 rears, cut afterwards unnecessary tension rod 22.Adopt this stretching and anchoring device should be taking symmetrical as principle to the stretch-draw of many fiberboards 3, one by one, stretch-draw fiberboard 3 alternately.
The using method of stretching and anchoring device of the present invention, by being arranged on the multiple juxtaposed jack 25 between rear reaction plate 24 and stretching end anchorage 21, make in the situation that applying same stretching force, changing by the larger single jack of original diameter multiple jack that diameter is less into is arranged side by side, effectively reduce the distance between fiberboard 3 distance structure thing 4 surfaces, ensure that to greatest extent fiberboard 3 and works 4 surfaces are more approaching, be easy to paste and fix, to avoid the bonding interface generation between fiberboard 3 and works 4 to cause peeling off compared with large normal direction tensile stress.In addition, the stretching end fixture 31 that fiberboard 3 two ends connect can directly be connected to respectively on tension rod 22 and fixed end anchorage 11 with fixed end fixture 12, the stretching end of fiberboard 3 has saved stretch-draw reaction plate structure, make fiberboard 3 prefabricated stage in factory, the assembly that its two ends connect respectively stretching end fixture 31 and the 12 rear formation of fixed end fixture is beneficial to be coiled and packs, easy damaged fiberboard 3 not in transportation.This stretching and anchoring device, can realize reliable connection the between fiberboard 3 and works 4, ensure the stretch-draw uniformity of fiberboard 3 simultaneously, give full play to the high powerful feature of fiberboard 3, the power transmission of this stretching and anchoring device entirety is clear and definite, simple structure, parts are light and handy, flexible arrangement and constructability.This stretching and anchoring device installation to after fiberboard 3 stretch-draw, the clear distance on its fiberboard 3 distance structure thing 4 surfaces can reach 0cm-5cm.
The foregoing is only several embodiments of the present invention, those skilled in the art can carry out various changes or modification and not depart from the spirit and scope of the present invention the embodiment of the present invention according to the disclosed content of application documents.
Claims (17)
1. a stretching and anchoring device, is characterized in that, described stretching and anchoring device comprises:
Fixed end structure, it has fixed end anchorage, on described fixed end anchorage, is connected with fixed end fixture;
Stretching end structure, it has stretching end anchorage, on described stretching end anchorage, be equipped with two tension rods, two described tension rods are connected with locking nut and rear reaction plate away from one end of described fixed end structure, described locking nut contact, on described stretching end anchorage, is provided with multiple jack between described rear reaction plate and described stretching end anchorage side by side;
Fiberboard, its one end is connected with stretching end fixture, and its other end is connected with described fixed end fixture, and described stretching end fixture is connected near one end of described fixed end structure with two described tension rods.
2. stretching and anchoring device as claimed in claim 1, is characterized in that, described stretching end fixture comprises:
Chuck body, its both sides convex with respectively hanger portion, and described hanger portion is provided with perforation, and described tension rod wears and is connected in described perforation, offers trapezoidal shape perforation in described chuck body, and one end of described fiberboard is located in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and described fiberboard is folded between described two intermediate plates.
3. stretching and anchoring device as claimed in claim 2, is characterized in that, the one side that described intermediate plate contacts with described fiberboard is provided with friction recess.
4. stretching and anchoring device as claimed in claim 3, is characterized in that, described friction recess is strip groove, grid groove or multiple concave point.
5. stretching and anchoring device as claimed in claim 2 or claim 3, is characterized in that, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
6. stretching and anchoring device as claimed in claim 1, is characterized in that, described fixed end fixture comprises:
Chuck body, on it, offer multiple connecting holes, described chuck body is located in described multiple connecting hole and is connected on the bottom surface of described fixed end anchorage by multiple bolts, in described chuck body, offer trapezoidal shape perforation, the other end of described fiberboard is located in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and the other end of described fiberboard is folded between described two intermediate plates.
7. stretching and anchoring device as claimed in claim 1, is characterized in that, described fixed end fixture comprises:
Fixed end anchor block, it is connected on the bottom surface of described fixed end anchorage, and the middle part of described fixed end anchor block offers groove;
Chuck body, offers trapezoidal shape perforation on it, the other end of described fiberboard is located in through described groove in described trapezoidal shape perforation;
Two intermediate plates, it is located in described trapezoidal shape perforation, and the other end of described fiberboard is folded between described two intermediate plates.
8. the stretching and anchoring device as described in claim 6 or 7, is characterized in that, the one side that described intermediate plate contacts with described fiberboard is provided with friction recess.
9. stretching and anchoring device as claimed in claim 8, is characterized in that, described friction recess is strip groove, grid groove or multiple concave point.
10. the stretching and anchoring device as described in claim 6 or 7, is characterized in that, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
11. stretching and anchoring devices as claimed in claim 8, is characterized in that, described intermediate plate is coated with adhesive layer with the one side that described fiberboard contacts.
12. stretching and anchoring devices as claimed in claim 1, is characterized in that, described stretching end anchorage is cuboid, and two described tension rods are located in the both sides of described stretching end anchorage.
13. stretching and anchoring devices as claimed in claim 1, is characterized in that, described stretching end anchorage convexes with connecting portion downwards away from one end of described fixed end structure, and described two tension rods are located on described connecting portion.
The using method of 14. 1 kinds of stretching and anchoring devices as described in any one in claim 1～13, is characterized in that, the using method of described stretching and anchoring device comprises the following steps:
Step 1): processing is polished, cleaned and is dried on works surface, smear one deck primary coat glue-line on described works surface afterwards;
Step 2): described stretching and anchoring device is arranged on described works surface by fixed end anchorage and stretching end anchorage, the fixed end fixture that fiberboard one end is connected is arranged on described fixed end anchorage, and the stretching end fixture that the described fiberboard other end is connected is connected on two tension rods of described stretching and anchoring device;
Step 3): expand multiple jack of described stretching and anchoring device, in the process of described fiberboard stretch-draw, lock the locking nut on described tension rod.
The using method of 15. stretching and anchoring devices as claimed in claim 14, it is characterized in that, in described step 2) also comprise before step 1 '): the fixed end fixture of described stretching and anchoring device and stretching end fixture are connected to the two ends of described fiberboard, and by holding device, two intermediate plates of two of fixed end fixture intermediate plates and stretching end fixture are held out against in advance.
The using method of 16. stretching and anchoring devices as claimed in claim 14, it is characterized in that, in described step 3) also comprise afterwards step 4): after described fiberboard stretch-draw puts in place, lock the locking nut on described tension rod, unload afterwards the rear reaction plate of multiple described jack and described stretching and anchoring device, and screw in standby mother at described locking nut rear, cut afterwards unnecessary tension rod.
The using method of 17. stretching and anchoring devices as claimed in claim 14, it is characterized in that, in described step 2) in, on described works surface, offering two mounting grooves, described fixed end anchorage and described stretching end anchorage are arranged on respectively in described mounting groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410418606.7A CN104153584A (en) | 2014-08-22 | 2014-08-22 | Tensioned anchorage device and using method of tensioned anchorage device |
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| CN201410418606.7A CN104153584A (en) | 2014-08-22 | 2014-08-22 | Tensioned anchorage device and using method of tensioned anchorage device |
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| CN104153584A true CN104153584A (en) | 2014-11-19 |
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| CN201410418606.7A Pending CN104153584A (en) | 2014-08-22 | 2014-08-22 | Tensioned anchorage device and using method of tensioned anchorage device |
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| CN105926949A (en) * | 2016-05-20 | 2016-09-07 | 北京特希达科技有限公司 | In-site tensioning system and method for reinforcing slab plate of integral prestress fiber board |
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| 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 |
| CN106193643A (en) * | 2016-07-20 | 2016-12-07 | 东南大学 | A kind of Prestressed CFRP plate stretching and anchoring device of reinforcing steel beam and combination beam |
| CN106113203B (en) * | 2016-07-27 | 2018-08-24 | 国家林业局北京林业机械研究所 | Anchor system for bamboo original-state multidirectional recombinant material |
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| CN111198155A (en) * | 2020-01-13 | 2020-05-26 | 西南交通大学 | Sample forming device and method for flexible fiber drawing test |
| CN111198155B (en) * | 2020-01-13 | 2021-07-20 | 西南交通大学 | Sample forming device and method for flexible fiber drawing test |
| CN113202323A (en) * | 2021-03-31 | 2021-08-03 | 河海大学 | Single-wedge-shaped-clamp-piece prestressed FRP plate tensioning and anchoring device and steel beam reinforcing method |
| CN113931085A (en) * | 2021-10-19 | 2022-01-14 | 上海悍马建筑科技有限公司 | Device and method for vertically tensioning prestressed carbon fiber plate |
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