CN203008401U - Device for reinforcing flexural concrete member - Google Patents
Device for reinforcing flexural concrete member Download PDFInfo
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- CN203008401U CN203008401U CN 201220547078 CN201220547078U CN203008401U CN 203008401 U CN203008401 U CN 203008401U CN 201220547078 CN201220547078 CN 201220547078 CN 201220547078 U CN201220547078 U CN 201220547078U CN 203008401 U CN203008401 U CN 203008401U
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Abstract
The utility model discloses a device for reinforcing a flexural concrete member. Grooves are formed at two ends of a tensioned face of a reinforced concrete member, steel plates with preformed holes are respectively abutted against the two ends of the member, stranded steel wires are tensioned to enable the steel plate and the concrete member to form a counter-force table, steel clamps which are used for bonding and clamping fiber reinforced composite material piece ends are embedded into the grooves, an anchor bolt is used for anchoring a clamp at one end into concrete, a clamp at the other end is connected with a lap joint steel block through a bolt, the high-strength bolt which penetrates through the steel plate and is connected with the lap joint steel block serves as a tension rod, a lifting jack is used for tensioning fiber reinforced composite materials, the bonding fiber reinforced composite materials and the clamp at a tension end are anchored into the concrete, U-type hoops are bonded at two ends of the reinforced concrete member, and after bonding glue is solidified, prestressing force is loosened step by step in a classification mode. According to the device, the reinforced concrete member serves as the tensioned counter-force table, a complex tensioning device is avoided being manufactured, and the problem of anchoring of the prestressing force of the fiber reinforced composite materials is solved.
Description
Technical field
The utility model is the device that a kind of reinforcing is subjected to curved concrete component, and particularly a kind of pre-stress fibre reinforced composite sheet material is reinforced the device that is subjected to curved concrete component, belongs to the renovation technique of reinforcing the device that is subjected to curved concrete component.
Background technology
Because the factors such as constructional deficiency, burn into overload or fatigue cause concrete damage, caused the structures such as in-service bridge, tunnel, industrial premises and ocean platform to have certain potential safety hazard, these damage concrete structures adopt the mode of reinforcement and strengthening to reach current Application standard usually.In recent years, fibre reinforced composites sheet material (comprising plate and cloth) is lightweight with it, Rigidity and strength is high, corrosion resistance and the advantage such as fatigability is strong, is widely used in the concrete structure reinforcement engineering.Yet, what the fibre reinforced composites sheet material reinforcement means in present actual stabilization works mainly adopted is passive reinforcing technique, mainly there is following shortcoming in this technology: as the high-intensity fiber sheet material of supporting material only at the reinforced structure secondary loading, occur further could progressively play a role after distortion, cause the fibre sheet material strength of materials not give full play to, integral reinforcing efficient is low; In addition, for the concrete structure of existing damage, such besides adhibit the fiber reinforced composite sheet material reinforcing technique can not recover existing damage, improves the limited in one's ability of original structure distortion.
The problem that exists for solving above-mentioned passive reinforcing technique, the new technology of pre-stress fibre reinforced composite sheet material reinforced concrete structure is arisen at the historic moment.This technology combines the strong point of fibre reinforced composites sheet attaching reinforcing technique and the reinforcing of external prestressing muscle, further improved consolidation effect, can bring into play better the high-strength pulling-resisting performance of fibre sheet material, crack and distortion to the normal operational phase of strenthening member are significantly improved, and obviously improve the integral reinforcing effect.Reinforce at pre-stress fibre reinforced composite sheet material and be subjected to curved concrete component technology, the fibre reinforced composites sheet material is prestressed, and to apply with anchoring be key issue.At present, the fibre reinforced composites method for applying prestressing force can be divided into indirect method and direct stretching method.Wherein, indirect method is not adopted by Practical Project usually because available prestressing force is less; And existing direct tension technology needs specifically to install as the stretch-draw platform, and this had both increased difficulty of construction, has improved again construction costs.In addition, although both at home and abroad pre-stress fibre reinforced composite ruggedized construction has all been carried out research more, but still there is no well to solve the problem of end anchorage, particularly end anchorage and prestress application is to implement step by step, make stabilization works increase workload.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and a kind of saving material is provided, and reduces costs the simple device that is subjected to curved concrete component of reinforcing of construction.The utility model is simple to operate, and is convenient and practical.
the technical solution of the utility model is: reinforcing of the present utility model is subjected to the device of curved concrete component, include the fibre reinforced composites sheet material, the first fixture and the second fixture, the first crab-bolt and the second crab-bolt, the first bolt, the overlap joint bloom, the first steel plate and the second steel plate, steel hinge line, the second bolt, jack, U-shaped hoop, wherein be reinforced the tension face two ends fluting of concrete component, the first steel plate and the second steel plate with preformed hole withstand on respectively the two ends that are reinforced concrete component, the two ends of the first steel plate and the second steel plate stretch-draw respectively have and make it and be reinforced the steel hinge line that concrete component forms the counter-force platform, the first fixture and the second fixture bond respectively and are clamped in the two ends of fibre reinforced composites sheet material, be reinforced after between two grooves of concrete component, binding resin is smeared on the surface, the first fixture and the second fixture embed and are reinforced in the set groove in concrete component two ends, the first crab-bolt is anchored in the first fixture of an end in concrete, the first bolt will overlap bloom and the second fixture links together, and the second bolt passes the first steel plate and is connected with the overlap joint bloom, jack tension the second bolt applies prestressing force for the fibre reinforced composites sheet material, the fibre reinforced composites sheet attaching is in the surface that is reinforced concrete component, and the second crab-bolt is implanted the second fixture of gripping fibers reinforcing material composite sheet in concrete, the U-shaped hoop of being made by fibre reinforced composites is pasted at the both ends that are reinforced concrete component.
Above-mentionedly put tension prestress after fibre reinforced composites sheet material adhesive glue is solidified, remove overlap joint bloom and the first steel plate and the second steel plate.
Above-mentioned steel hinge line is provided with 4, and 4 steel hinge lines are individually fixed in the first steel plate and the second steel plate the two ends that are reinforced concrete component, forms prestressed stretch-draw counter-force platform.
Above-mentioned the first steel plate is reserved with the stretch-draw hole at the At The Height of corresponding the second fixture.
The height of above-mentioned overlap joint bloom is identical with the height of the second fixture, and overlap joint bloom one side is reserved the bolt connecting hole corresponding with the second fixture, and opposite side remains for connecting the screw of stretch-draw the second bolt in advance.
The utility model is at the tension face two ends of concrete component fluting, and the steel plate with preformed hole is withstood on respectively member two ends, and the stretch-draw steel hinge line makes steel plate and concrete component formation counter-force platform; Then, in the steel clamp tool embedded groove with bonding gripping fibers reinforced composite two ends, and adopt crab-bolt that the fixture of one end is anchored in concrete, the fixture of the other end utilizes bolt and is connected bloom and connects; Then, pass steel plate with the high-strength bolt that is connected of overlap joint bloom as tension rod, utilize the jack pair fibre reinforced composites to carry out stretch-draw; At last, paste fibre reinforced composites and the fixture of stretching end be anchored in concrete, at the U-shaped hoop of the two ends of strenthening member stickup, after adhesive curing to be bonded progressively classification put tension prestress.The utility model is compared with existing other method, it is a kind of fibre reinforced composites sheet material prestressed reinforcement technology of being convenient to implement, the concrete component that utilization is reinforced itself is as stretch-draw counter-force platform, avoided making complicated tensioning equipment, preferably resolve simultaneously the prestressed anchoring problem of fibre reinforced composites, be applicable to the curved concrete component that is subjected to that all utilize the reinforcing of fibre reinforced composites sheet material.The utility model is that a kind of design is ingenious, function admirable, and convenient and practical reinforcing is subjected to the device of curved concrete component.
Description of drawings
Fig. 1 is that the utility model utilization is reinforced member and carries out the structural representation of fibre reinforced composites prestressed stretch-draw and anchoring as the counter-force platform;
Fig. 2 is the partial enlarged drawing of stretching end anchorage zone.
The specific embodiment
Embodiment:
structural representation of the present utility model such as Fig. 1, shown in 2, reinforcing of the present utility model is subjected to the device of curved concrete component, include fibre reinforced composites sheet material 2, the first fixture 3 and the second fixture 4, the first crab-bolt 5 and the second crab-bolt 51, the first bolt 6, overlap joint bloom 7, the first steel plate 8 and the second steel plate 9, steel hinge line 10, the second bolt 11, jack 12, U-shaped hoop 13, wherein be reinforced the tension face two ends fluting of concrete component 1, the first steel plate 8 and the second steel plate 9 with preformed hole withstand on respectively the two ends that are reinforced concrete component 1, the two ends of the first steel plate 8 and the second steel plate 9 stretch-draw respectively have and make it and be reinforced the steel hinge line 10 that concrete component 1 forms the counter-force platform, the first fixture 3 and the second fixture 4 bond respectively and are clamped in the two ends of fibre reinforced composites sheet material 2, be reinforced after between two grooves of concrete component 1, binding resin is smeared on the surface, the first fixture 3 and the second fixture 4 embed and are reinforced in the set groove in concrete component 1 two ends, the first crab-bolt 5 is anchored in the first fixture 3 of an end in concrete, the first bolt 6 will overlap bloom 7 and the second fixture 4 links together, and the second bolt 11 passes the first steel plate 8 and is connected with overlap joint bloom 7, jack 12 stretch-draw the second bolts 11 apply prestressing force for fibre reinforced composites sheet material 2, fibre reinforced composites sheet material 2 is pasted on the surface that is reinforced concrete component 1, and the second crab-bolt 51 is implanted the second fixture 4 of gripping fibers reinforcing material composite sheet 2 in concrete, the U-shaped hoop 13 of being made by fibre reinforced composites is pasted at the both ends that are reinforced concrete component 1.
Above-mentionedly put tension prestress after fibre reinforced composites sheet material 2 adhesive glue are solidified, remove overlap joint bloom 7 and the first steel plate 8 and the second steel plate 9.
Above-mentioned steel hinge line 10 is provided with 4, and 4 steel hinge lines 10 are individually fixed in the first steel plate 8 and the second steel plate 9 two ends that are reinforced concrete component 1.
In the present embodiment, above-mentioned the first steel plate 8 is reserved with the stretch-draw hole at the At The Height of corresponding the second fixture 4.
The height of above-mentioned overlap joint bloom 7 is identical with the height of the second fixture 4, and overlap joint bloom 7 one sides are reserved the bolt connecting hole corresponding with the second fixture 4, and opposite side remains for connecting the screw of stretch-draw the second bolt 11 in advance.
The utility model is reinforced the method that is subjected to curved concrete component, to utilize to be reinforced concrete component 1 itself as the counter-force platform, the mode that adopting slots embeds is anchored in the first fixture 3 of gripping fibers reinforced composite sheet material 2 in concrete component, by being connected of overlap joint bloom 7 and the second fixture 4, utilize the second bolt 11 of jack 12 stretch-draw overlap joint blooms 7, enforcement is carried out the reinforcing of pre-stress fibre reinforced composite to member, has avoided formulating complicated tensioning equipment.Embodiment in practice comprises following concrete step:
1) fluting.Be reinforced the tension face two ends fluting of concrete component 1 according to the size of the first fixture 3 and the second fixture 4, the first fixture 3 be connected fixture 4 and form by the two parts that reserve to connect anchor hole, the interface of top and the bottom is configured to waveform, top and the bottom docking can form integral body, and the degree of depth of fluting just makes the interface of fixture top and the bottom and is reinforced the tension face of concrete component 1 on same level.In addition, the second fixture 4 one sides are reserved bolt connecting hole, as shown in Figure 2;
2) form stretch-draw counter-force platform.The first steel plate 8 and the second steel plate 9 are withstood on respectively be reinforced member 1 two ends, penetrating 4 steel hinge lines at preformed hole couples together the first steel plate 8 and the second steel plate 9, stretch-draw steel hinge line 10 makes the first steel plate 8 and the second steel plate 9 and is reinforced concrete component 1 and forms the counter-force platform, wherein the first steel plate 8 is in the At The Height external stretch-draw of the reservation hole of corresponding the second fixture 4, as shown in Figure 1;
3) bonding gripping fibers reinforced composite two ends.According to being reinforced the cutting of concrete component size or now compiling fibre reinforced composites sheet material 2, then smear binding resin at the first fixture 3 and the second fixture 4 top and the bottom butting surfaces, with bond the respectively two ends of gripping fibers reinforced composite sheet material 2 of the first fixture 3 and the second fixture 4;
4) embed fixture.Smear binding resin being reinforced between two grooves of member 1 behind the surface, in the first fixture 3 and the second fixture 4 embedded grooves, and adopt the first crab-bolt 5 that the first fixture 3 is anchored in concrete;
5) connect the overlap joint bloom.Utilize the first bolt 6 will overlap bloom 7 and the second fixture 4) couple together, wherein, the height of overlap joint bloom 7 is highly identical with the second fixture 4, and overlap joint bloom 7 one sides are reserved the bolt connecting hole corresponding with the second fixture 4, and opposite side remains for connecting the screw of the second bolt 11 in advance;
6) stretch-draw fibre reinforced composites.Utilize high-strength the second bolt 11 of 12～16mm to pass the first steel plate 8 and is connected with overlap joint bloom 7, utilize direct stretch-draw the second bolt 11 of jack 12, make fibre reinforced composites sheet material 2 acquisition prestressing force;
7) paste fibre reinforced composites.Utilize the second crab-bolt 51 that the second fixture 4 is implanted in concrete, then fibre reinforced composites sheet material 2 use resin-dippings are pasted on and are reinforced concrete component 1 surface, and smear resin in the side that is reinforced close fixture zone, concrete component 1 two ends, each end is pasted 2～3 U-shaped hoops 13 of being made by fibre reinforced composites every 80mm;
8) discharge prestressing force.After adhesive curing to be bonded, tension prestress is progressively put in classification, removes overlap joint bloom 7, the first steel plate 8 and the second steel plate 9.
Claims (4)
1. a reinforcing is subjected to the device of curved concrete component, it is characterized in that including fibre reinforced composites sheet material (2), the first fixture (3) and the second fixture (4), the first crab-bolt (5) and the second crab-bolt (51), the first bolt (6), overlap joint bloom (7), the first steel plate (8) and the second steel plate (9), steel hinge line (10), the second bolt (11), jack (12), U-shaped hoop (13), wherein be reinforced the tension face two ends fluting of concrete component (1), the first steel plate (8) and the second steel plate (9) with preformed hole withstand on respectively the two ends that are reinforced concrete component (1), the two ends of the first steel plate (8) and the second steel plate (9) stretch-draw respectively have and make it and be reinforced the steel hinge line (10) that concrete component (1) forms the counter-force platform, the first fixture (3) and the second fixture (4) bond respectively and are clamped in the two ends of fibre reinforced composites sheet material (2), be reinforced after between two grooves of concrete component (1), binding resin is smeared on the surface, the first fixture (3) and the second fixture (4) embed and are reinforced in the set groove in concrete component (1) two ends, the first crab-bolt (5) is anchored in first fixture (3) of an end in concrete, the first bolt (6) will overlap bloom (7) and link together with the second fixture (4), and the second bolt (11) passes the first steel plate (8) and is connected with overlap joint bloom (7), jack (12) stretch-draw the second bolt (11) applies prestressing force for fibre reinforced composites sheet material (2), fibre reinforced composites sheet material (2) is pasted on the surface that is reinforced concrete component (1), and the second crab-bolt (51) is implanted second fixture (4) of gripping fibers reinforcing material composite sheet (2) in concrete, the U-shaped hoop (13) of being made by fibre reinforced composites is pasted at the both ends that are reinforced concrete component (1).
2. reinforcing according to claim 1 is subjected to the device of curved concrete component, it is characterized in that above-mentioned steel hinge line (10) is provided with 4,4 steel hinge lines (10) are individually fixed in the first steel plate (8) and the second steel plate (9) two ends that are reinforced concrete component (1), form prestressed stretch-draw counter-force platform.
3. reinforcing according to claim 1 is subjected to the device of curved concrete component, it is characterized in that above-mentioned the first steel plate (8) is reserved with the stretch-draw hole at the At The Height of corresponding the second fixture (4).
4. reinforcing according to claim 1 is subjected to the device of curved concrete component, the height that it is characterized in that above-mentioned overlap joint bloom (7) is identical with the height of the second fixture (4), overlap joint bloom (7) one sides are reserved the bolt connecting hole corresponding with the second fixture (4), and opposite side remains for connecting the screw of stretch-draw the second bolt (11) in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547078 CN203008401U (en) | 2012-10-24 | 2012-10-24 | Device for reinforcing flexural concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547078 CN203008401U (en) | 2012-10-24 | 2012-10-24 | Device for reinforcing flexural concrete member |
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| CN203008401U true CN203008401U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220547078 Expired - Fee Related CN203008401U (en) | 2012-10-24 | 2012-10-24 | Device for reinforcing flexural concrete member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926551A (en) * | 2012-10-24 | 2013-02-13 | 广东工业大学 | Device and method for reinforcing flexural concrete member |
| CN104818677A (en) * | 2015-03-17 | 2015-08-05 | 苏交科集团股份有限公司 | Fiber board tensioning device and fiber board tensioning method |
-
2012
- 2012-10-24 CN CN 201220547078 patent/CN203008401U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926551A (en) * | 2012-10-24 | 2013-02-13 | 广东工业大学 | Device and method for reinforcing flexural concrete member |
| CN102926551B (en) * | 2012-10-24 | 2015-02-18 | 广东工业大学 | Device and method for reinforcing flexural concrete member |
| CN104818677A (en) * | 2015-03-17 | 2015-08-05 | 苏交科集团股份有限公司 | Fiber board tensioning device and fiber board tensioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151024 |
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| EXPY | Termination of patent right or utility model |