CN212406216U - Fiber cloth prestress applying device - Google Patents
Fiber cloth prestress applying device Download PDFInfo
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- CN212406216U CN212406216U CN202020888236.4U CN202020888236U CN212406216U CN 212406216 U CN212406216 U CN 212406216U CN 202020888236 U CN202020888236 U CN 202020888236U CN 212406216 U CN212406216 U CN 212406216U
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- anchor
- fiber cloth
- concrete member
- threaded connection
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Abstract
The utility model provides a fiber cloth prestress applying device, which comprises tensioning components respectively arranged at two ends of a concrete member, wherein each tensioning component comprises two anchor plates, a pressing plate, an anchor rod and a nut, the anchor rod is in threaded connection with the two anchor plates and the pressing plate from bottom to top, the nut is in threaded connection with the top of the anchor rod, the fiber cloth is positioned below the concrete member, and the two ends of the fiber cloth both bypass the anchor plate at the upper end and extend into the space between the two anchor plates; at least one chock mounted to the bottom of the concrete member between the two tension assemblies; the anchoring components are positioned on two sides of the wedge block and comprise an anchor plate arranged at the bottom of the concrete member, a pressing plate horizontally penetrating the concrete member, an anchor rod in threaded connection with the anchor plate and the pressing plate from bottom to top and a nut in threaded connection with the top of the anchor rod; the middle part of the fiber cloth is arranged at the bottom of the wedge block and is anchored by the anchoring component so that the fiber cloth is tightly attached to the concrete member and the wedge block. The utility model discloses the construction is simple, the anchor is reliable.
Description
Technical Field
The utility model relates to a reinforcing apparatus technical field for the building especially relates to a device is applyed to fibre cloth prestressing force.
Background
Reinforced concrete structures often require reinforcement of the structure over their normal service life due to structural durability problems, chemical corrosion, increased service loads, and design and construction defects.
The fiber cloth has the advantages of high strength and efficiency, convenient construction, corrosion resistance, light dead weight, no increase of the size of structural members and the like, and is widely applied to the reinforcement of concrete structure engineering. In the prior art, the fiber cloth is usually directly adhered to the reinforced member, the reinforcing mode makes the tensile strength difficult to exert, and the reinforced member has serious stress lag when being stressed, thereby causing the cooperative working performance of the fiber cloth and the reinforced member to be poor and the reinforcing efficiency to be low.
Compared with a non-prestressed reinforcement mode, the prestressed fiber cloth reinforcement mode can better inhibit crack development, improve the bearing capacity of a reinforced member, fully play the high-strength characteristic of the fiber cloth and improve the utilization rate of the fiber cloth. In the process of prestressed fiber cloth reinforcement construction, the defects of the existing tensioning technology and construction technology are more: the device is complicated, the force application is uneven, the fiber cloth slides out in the tensioning process, and the like. Therefore, a simple device capable of applying prestress to the fiber cloth is needed, which can effectively apply larger prestress without damaging the fiber cloth, and has simple construction and reliable anchoring.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model provides a device is applyed to fibre cloth prestressing force through set up the tensioning subassembly respectively at concrete member both ends, set up the pad voussoir between the tensioning subassembly and set up the anchor subassembly respectively in pad voussoir both sides, through the fixed both ends fibre cloth of tensioning subassembly, then the nut of screwing up the anchor subassembly makes fibre cloth paste tight concrete member and pad voussoir, it has solved the prestressing force applying device that exists among the prior art complicacy, the application of force degree of difficulty is big, stretch-draw in-process fibre cloth roll-off problem.
According to the utility model discloses an embodiment, a fibre cloth prestressing force is applyed device for prestressing force is applyed to fibre cloth in concrete member reinforcement construction, and it includes
The tensioning assembly comprises two anchor plates which are arranged at the bottom of the concrete member and are placed up and down, a pressing plate which horizontally penetrates through the concrete member, an anchor rod which is in threaded connection with the two anchor plates and the pressing plate from bottom to top, and a nut which is in threaded connection with the top of the anchor rod, wherein the fiber cloth is positioned below the concrete member, and the two ends of the fiber cloth both bypass the anchor plate at the upper end and extend into the space between the two anchor plates;
at least one chock mounted to the bottom of the concrete member between the two tension assemblies;
the anchor components comprise anchor plates arranged at the bottom of the concrete member, pressure plates horizontally penetrating the concrete member, anchor rods in threaded connection with the anchor plates and the pressure plates from bottom to top and screw caps in threaded connection with the tops of the anchor rods;
the middle part of the fiber cloth is arranged at the bottom of the wedge block and is anchored by the anchoring component so that the fiber cloth is tightly attached to the concrete member and the wedge block.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the tensioning assemblies are respectively arranged at the two ends of the concrete member, the cushion wedge block is arranged between the two tensioning assemblies, the middle part of the fiber cloth is arranged at the bottom of the cushion wedge block, the two ends of the fiber cloth are wound and tightly pressed on the tensioning assemblies, the two ends of the fiber cloth are fixed through the tensioning assemblies and are not easy to slide out, the anchoring assemblies are respectively arranged at the two sides of the cushion wedge block, and the fiber cloth is tightly attached to the concrete member and the cushion wedge block by screwing the screw caps of the anchoring assemblies, so that the fiber cloth is stretched and prestressed.
2. The prestress of the fiber cloth can be controlled by adjusting the number of the cushion wedges and changing the height of the cushion wedges, and the application is wide.
Drawings
Fig. 1 is a schematic view of a main structure of an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1.
Fig. 3 is a schematic structural view of the present invention when the anchoring assembly is not installed.
Fig. 4 is a partial cross-sectional view of fig. 3.
Fig. 5 is a schematic structural diagram of the middle anchoring assembly of the present invention.
In the above drawings: 1. a concrete member; 2. fiber cloth; 3. a tension assembly; 4. an anchor plate; 40. a rubber pad; 5. pressing a plate; 6. an anchor rod; 7. a nut; 8. a pad wedge block; 9. an anchor assembly.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.
As shown in FIGS. 1-4, the embodiment of the utility model provides a fibre cloth prestressing force applying device for applying prestressing force to fibre cloth 2 in the reinforcement construction of concrete member 1, it includes
The two tensioning assemblies 3 are respectively arranged at two ends of the concrete member 1 and used for tensioning and fixing two ends of the fiber cloth 2, each tensioning assembly 3 comprises two anchor plates 4 which are arranged at the bottom of the concrete member 1 and are placed up and down, a pressing plate 5 which horizontally penetrates through the concrete member 1, an anchor rod 6 which is in threaded connection with the two anchor plates 4 and the pressing plate 5 from bottom to top and a nut 7 which is in threaded connection with the top of the anchor rod 6, the fiber cloth 2 is positioned below the concrete member 1, and two ends of the fiber cloth 2 both bypass the anchor plate 4 at the upper end and extend into the space between the two anchor plates 4;
at least one chock 8 mounted at the bottom of the concrete element 1 between the two tensioning assemblies 3;
the anchor assemblies 9 are respectively positioned on two sides of the wedge block 8, and each anchor assembly 9 comprises an anchor plate 4 arranged at the bottom of the concrete member 1, a pressing plate 5 horizontally penetrating the concrete member 1, an anchor rod 6 in threaded connection with the anchor plate 4 and the pressing plate 5 from bottom to top and a nut 7 in threaded connection with the top of the anchor rod 6;
the middle part of the fiber cloth 2 is placed at the bottom of the chock 8 and anchored by the anchoring assembly 9 to make the fiber cloth 2 abut against the concrete member 1 and the chock 8.
Specifically, the face of the fiber cloth 2 to be adhered is brushed with an adhesive layer.
In the scheme, two tensioning assemblies 3 are respectively arranged at two ends of a concrete member 1, specifically, two anchor plates 4 are arranged at the bottom of the concrete member 1, a pressing plate 5 is horizontally arranged on the concrete member 1 in a penetrating manner, the pressing plate 5 and the anchor plates 4 are arranged in parallel, two ends of the pressing plate 5 and two ends of the anchor plates 4 both extend out of the surface of the concrete member 1 and are provided with anchor rods 6 from bottom to top in a penetrating manner, screw caps 7 are connected to the tops of the anchor rods 6 in a threaded manner, a pad wedge block 8 is arranged between the two tensioning assemblies 3 and fixedly connected to the bottom of the concrete member 1, the elongation of the fiber cloth 2 between anchoring points at two ends is calculated according to the prestress to be applied, so as to determine the number and the height of the pad wedge blocks 8, before the prestress is applied, the middle part of the fiber cloth 2 coated with an adhesive layer is arranged at the bottom of the pad wedge block 8, two ends of the fiber cloth 2 are wound around the anchor plates 4 at the upper ends of, the screw caps 7 of the tensioning assembly 3 are tightened to enable the fiber cloth 2 to be tensioned and fixed, then the anchoring assemblies 9 are respectively installed on two sides of each cushion wedge block 8 to enable the fiber cloth 2 to be close to a concrete member and the cushion wedge, prestress is applied to the fiber cloth 2 by extending along with the gradual tightening of the screw caps 7 of the anchoring assemblies 9, the screw caps 7 of the anchoring assemblies 9 are not completely tightened in the prestress applying process, the fiber cloth 2 can freely extend in a gap between the anchor plate 4 and the concrete member 1, and the screw caps 7 of all the anchoring assemblies 9 are tightened after the prestress is applied in place, so that the device can effectively apply larger prestress without damaging the fiber cloth 2, is simple in construction and reliable in anchoring; the fiber cloth 2 is firmly adhered to the concrete member 1 after being tightly adhered to the concrete member by brushing the adhesive layer, so that the reinforcement is more reliable.
As shown in fig. 3 and 4, a strip-shaped hole is horizontally formed in the concrete member 1 in a penetrating manner, and the pressing plate 5 is detachably inserted into the strip-shaped hole. Through running through in 1 both sides of concrete member and seting up the bar hole, the size in bar hole matches with 5 sizes of clamp plate, and 5 pegs graft at the bar downthehole, the adjustment of being convenient for of clamp plate.
As shown in fig. 5, rubber pads 40 are fixedly connected to the top of the anchor plates 4. Through setting up rubber pad 40, it and fibre cloth 2 direct contact can increase the fastening force of anchor slab to fibre cloth and can avoid causing fibre cloth 2's damage because of rigid wear again, increase of service life guarantees product quality.
The shim wedges 8 are equally spaced between the two tension packs 3. The cushion wedges 8 are distributed between the two tensioning assemblies 3 at equal intervals, so that the fiber cloth 2 is stressed uniformly and anchored reliably.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. The utility model provides a fibre cloth prestressing force applying device for in concrete member reinforcement construction prestressing force is applied to fibre cloth, its characterized in that: comprises that
The tensioning assembly comprises two anchor plates which are arranged at the bottom of the concrete member and are placed up and down, a pressing plate which horizontally penetrates through the concrete member, an anchor rod which is in threaded connection with the two anchor plates and the pressing plate from bottom to top, and a nut which is in threaded connection with the top of the anchor rod, wherein the fiber cloth is positioned below the concrete member, and the two ends of the fiber cloth both bypass the anchor plate at the upper end and extend into the space between the two anchor plates;
at least one chock mounted to the bottom of the concrete member between the two tension assemblies;
the anchor components comprise anchor plates arranged at the bottom of the concrete member, pressure plates horizontally penetrating the concrete member, anchor rods in threaded connection with the anchor plates and the pressure plates from bottom to top and screw caps in threaded connection with the tops of the anchor rods;
the middle part of the fiber cloth is arranged at the bottom of the wedge block and is anchored by the anchoring component so that the fiber cloth is tightly attached to the concrete member and the wedge block.
2. A fiber cloth prestress imparting device according to claim 1, wherein: and the face of the fiber cloth to be adhered is brushed with an adhesive layer.
3. A fiber cloth prestress imparting device according to claim 2, wherein: a strip-shaped hole is horizontally formed in the concrete member in a penetrating mode, and the pressing plate is detachably inserted into the strip-shaped hole in a inserting mode.
4. A fiber cloth prestress imparting device according to claim 2, wherein: rubber pads are fixedly connected to the tops of the anchor plates.
5. A fiber cloth prestress imparting device according to claim 2, wherein: the pad wedge blocks are distributed between the two tensioning assemblies at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020888236.4U CN212406216U (en) | 2020-05-22 | 2020-05-22 | Fiber cloth prestress applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020888236.4U CN212406216U (en) | 2020-05-22 | 2020-05-22 | Fiber cloth prestress applying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212406216U true CN212406216U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020888236.4U Active CN212406216U (en) | 2020-05-22 | 2020-05-22 | Fiber cloth prestress applying device |
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| CN (1) | CN212406216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030553A (en) * | 2022-07-05 | 2022-09-09 | 王明明 | Prestressing force reinforced structure of building engineering |
-
2020
- 2020-05-22 CN CN202020888236.4U patent/CN212406216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030553A (en) * | 2022-07-05 | 2022-09-09 | 王明明 | Prestressing force reinforced structure of building engineering |
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