CN110700620A - Civil structure's reinforcing apparatus and installation mechanism - Google Patents
Civil structure's reinforcing apparatus and installation mechanism Download PDFInfo
- Publication number
- CN110700620A CN110700620A CN201911031420.5A CN201911031420A CN110700620A CN 110700620 A CN110700620 A CN 110700620A CN 201911031420 A CN201911031420 A CN 201911031420A CN 110700620 A CN110700620 A CN 110700620A
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- Prior art keywords
- fixing
- plate
- hole
- anchor
- carbon fiber
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 title claims description 32
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 44
- 239000004917 carbon fiber Substances 0.000 claims abstract description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000010276 construction Methods 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Abstract
The invention discloses a device for reinforcing a civil structure, which is characterized by comprising carbon fiber ribs, the first fixing assembly is arranged at one end of the carbon fiber bar and the second fixing assembly is arranged at the other end of the carbon fiber bar, the first fixing assembly comprises a first fixing block and a first fixing anchor, the first fixing block is provided with a first fixing mechanism fixedly connected with the surface of a civil structure, the first fixing anchor is fixedly arranged on the first fixing block, the first fixing anchor is fixedly connected with one end of the carbon fiber bar, a pressure sensor is arranged between the first fixing anchor and the first fixing block, the second fixing assembly comprises a second fixing block and a second fixing anchor, the second fixing block is provided with a second fixing mechanism fixedly connected with the surface of the civil structure, the second fixing anchor is fixedly arranged on the second fixing block, and the second fixing anchor is fixedly connected with the other end of the carbon fiber bar; the construction method has the advantages of simple overall structure, low cost, short construction period and less required labor.
Description
Technical Field
The invention relates to a reinforcing device and an installation mechanism thereof, in particular to a reinforcing device and an installation mechanism of a civil structure.
Background
The carbon fiber reinforced composite material rib material is short for carbon fiber rib, has the advantages of high strength, corrosion resistance, low density and the like, the application of the prestress carbon fiber rib reinforcement technology to the reinforcement of the civil engineering structure has important application value, the carbon fiber rib is pre-tensioned, the generated initial prestress can be used for balancing part of dead weight or load of the civil structure, so that the reinforcing effect of the carbon fiber rib can be fully exerted, the development of cracks is greatly delayed, the width of the cracks is reduced, the rigidity of the civil structure is effectively enhanced, the deflection of a beam is reduced, the strain of an internal reinforcing steel bar is relieved, and the yield load of the reinforcing steel bar and the limit bearing capacity of the civil structure are improved.
The research of the carbon fiber reinforced anchor has been developed for many years, but the reinforcing technology of the prestressed carbon fiber reinforced civil structure is just started, so that a large optimization space exists, cracks, deformation and the like easily occur when the surfaces of the existing bridge and the building are compressed, once an overloaded vehicle drives over an old bridge, serious collapse accidents are easily caused by fracture, and a cross section increasing method and a steel plate pasting method are generally adopted, wherein the self weight of the structure can be greatly increased by the cross section increasing method, the construction period is long, and the structure space is compressed; the steel plate pasting method has poor durability, the bonding interface is easy to age and release, and the later maintenance cost is high.
Disclosure of Invention
The invention aims to provide a reinforcing device and an installation mechanism for a civil structure, so that the civil structure is reinforced and the performance is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a device for reinforcing a civil structure comprises a carbon fiber bar, a first fixing component arranged at one end of the carbon fiber bar and a second fixing component arranged at the other end of the carbon fiber bar, wherein the first fixing component comprises a first fixing block and a first fixing anchor, the first fixing block is provided with a first fixing mechanism fixedly connected with the surface of a civil structure, the first fixing anchor is fixedly arranged on the first fixing block, the first fixing anchor is fixedly connected with one end of the carbon fiber bar, a pressure sensor is arranged between the first fixing anchor and the first fixing block, the second fixing component comprises a second fixing block and a second fixing anchor, the second fixing block is provided with a second fixing mechanism fixedly connected with the surface of the civil structure, the second fixing anchor is fixedly arranged on the second fixing block, the second fixing anchorage device is fixedly connected with the other end of the carbon fiber bar.
The first fixing block is provided with a first fixing plate, the first fixing plate is provided with a first through hole, the outer end of the first fixing anchor is provided with a first fixing screw hole, the first fixing screw hole is internally and spirally provided with a first fixing screw rod, the first fixing screw rod sequentially extends out of the first fixing screw hole and the first through hole, the end part of the first fixing screw rod extending out of the first through hole is in threaded connection with a first fixing nut, the pressure sensor is positioned between the first fixing nut and the first fixing plate, the inner end of the second fixing block is provided with a second fixing plate, the outer end of the second fixing block is provided with an installation baffle plate, the second fixing plate is provided with a second through hole, the outer end of the second fixing anchor is provided with a second fixing screw hole, and the second fixing screw hole is internally and spirally connected with a second fixing screw rod, the second fixing screw rod sequentially extends out of the second fixing screw hole and the second through hole, and a second fixing nut is arranged at the end part of the second fixing screw rod extending out of the second through hole in a threaded mode. The structure is simple, the cost is low, the reinforcing structure is suitable for reinforcing most bridges and various other civil structures, and the structure with two points and one line is less limited by the surface shape of the civil structure, so the application range is wide; thereby can be convenient through set up installation mechanism on the installation baffle draw the completion installation to the carbon fiber muscle through the fixed ground tackle of second.
The first fixing plate and the side part of the first fixing block are provided with a first side reinforcing plate, the second fixing plate and the side part of the second fixing block are provided with a second side reinforcing plate, and a third side reinforcing plate is arranged between the mounting baffle and the side part of the second fixing block. The tensile effect of the first fixing block, the second fixing block and the mounting baffle is enhanced.
First fixed establishment include two at least first installation screw holes along fore-and-aft direction distribution, with first installation screw hole complex first shear bolt and first shear nut, second fixed establishment include two at least second installation screw holes along fore-and-aft direction distribution, with second installation screw hole complex second shear bolt and second shear nut. The reinforcing device is connected to the surface of the civil structure through the first fixing mechanism and the second fixing mechanism respectively, the installation is quick and convenient, the structure is simple, and the application range is wide.
The first fixing anchor is internally provided with a first clamping hole along the axial direction, the second fixing anchor is internally provided with a second clamping hole along the axial direction, one end of the carbon fiber bar is fixedly clamped in the first clamping hole, and the other end of the carbon fiber bar is fixedly clamped in the second clamping hole. First fixed ground tackle and second fixed ground tackle are all through outside extrusion die in advance with carbon fiber muscle extrusion, fixed with first fixed block and second fixed block respectively during the installation for overall installation speed has been accelerated greatly.
An installation mechanism for installing the reinforcing device of the civil structure comprises a jack, a first return plate, a second return plate and two high-strength screws which are respectively positioned at two sides of a second fixed block, wherein the first return plate is positioned at the inner side of the second fixed plate, the inner end of a second fixed anchorage device is abutted against the first return plate, the first return plate is provided with two first through holes which respectively correspond to the high-strength screws and an installation groove which is used for passing through the carbon fiber ribs, the second return plate is positioned at the outer side of an installation baffle plate, the jack is abutted between the installation baffle plate and the second return plate, two sides of the second return plate are provided with two second through holes which respectively correspond to the high-strength screws, one end of the high-strength screw passes through the first through holes and is connected with the first return plate through a first limiting nut, the other end of the high-strength screw rod penetrates through the second through hole and is connected with the second return plate through a second limiting nut. When the device is installed, a first fixed block is fixedly connected with the surface of a civil structure, a first fixed anchorage device is fixedly connected with the first fixed block through a first fixed screw rod and a first fixed nut, a second fixed screw rod penetrates through a second through hole in a second fixed block and a second fixed nut is screwed and sleeved on the second fixed screw rod, the second fixed block is fixed with the surface of the civil structure at the moment, a mounting groove in a first return plate is sleeved on a carbon fiber rib, a second return plate, a high-strength screw rod and a jack are respectively installed, then the jack is started, a push rod of the jack pushes the second return plate to move outwards, the second return plate drives the first return plate to move through the high-strength screw rod, the first return plate drives the second fixed anchorage device to move outwards to strain the carbon fiber rib, and the jack stops working when a pressure signal fed back by a pressure sensor reaches a set value, at this moment, the second fixing anchor and the second fixing plate are fixed in position by rotating the second fixing nut, then all devices in the installation mechanism are detached respectively, the installation process is completed, the installation is convenient, the pulling stroke of the second fixing anchor is long, and the carbon fiber bar can be effectively guaranteed to reach the required prestress, so that the reinforcement effect is improved.
And the mounting baffle is provided with a limiting lug protruding towards the direction of the second return plate. The limiting convex block has a blocking effect on one end of the jack, and the safety during installation is improved.
Compared with the prior art, the invention has the advantages that the first fixed block is fixedly connected to the surface of a civil structure through the first fixing mechanism, the second fixed block is fixedly connected to the surface of the civil structure through the second fixing mechanism, one end of the carbon fiber bar is fixedly connected with the first fixed block through the first fixed anchorage device, the other end of the carbon fiber bar is fixedly connected with the second fixed block through the second fixed anchorage device, the pressure sensor is arranged between the first fixed anchorage device and the first fixed block, the integral structure is simple, the cost is low, the construction period is short, the required labor force is little, the invention can be used for shearing resistance reinforcement of various concrete beams and capping beams, the prestress tension can be realized at the top, the side and the bottom of the beam body, the effect on reinforcement of various civil structures is good, and the first fixing component and the second fixing component arranged at the other end of the carbon fiber bar adopt a two-point one-line structure, the reinforcing structure has the advantages of small transverse space required by reinforcing design, flexible arrangement, suitability for bending reinforcement of various concrete beams, particularly suitability for reinforcing the side surfaces and the bottom surfaces of hollow plate beams, capability of increasing bending bearing capacity or shearing resistance of the surface of the structure, and suitability for T beams with small bottom plate areas and other cross-section beam bodies.
Drawings
FIG. 1 is a schematic view of the overall structure of the reinforcing apparatus according to the present invention;
fig. 2 is a schematic partial structure diagram of the third embodiment.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows: a reinforcing device of a civil structure comprises a carbon fiber bar 1, a first fixing component arranged at one end of the carbon fiber bar 1 and a second fixing component arranged at the other end of the carbon fiber bar 1, wherein the first fixing component comprises a first fixing block 21 and a first fixing anchor 22, the first fixing block 21 is provided with a first fixing mechanism fixedly connected with the surface of a civil structure, the first fixing anchor 22 is fixedly arranged on the first fixing block 21, the first fixing anchor 22 is fixedly connected with one end of the carbon fiber bar 1, the first fixing block 21 is provided with a first fixing plate 23, a first side reinforcing plate 24 is arranged between the first fixing plate 23 and the side part of the first fixing block 21, the first fixing plate 23 is provided with a first through hole 25, the outer end of the first fixing anchor 22 is provided with a first fixing screw hole (not shown), the first fixing screw hole is internally screwed with a first fixing screw 26, the first fixing screw 26 extends out of the first fixing screw hole and the first through hole 25 in sequence, the end part of the first fixing screw 26 extending out of the first through hole 25 is provided with a first fixing nut 27 in a threaded manner, a pressure sensor (not shown) is arranged between the first fixing anchor 22 and the first fixing block 21 and is positioned between the first fixing nut 27 and the first fixing plate 23, the second fixing component comprises a second fixing block 31 and a second fixing anchor 32, the second fixing block 31 is provided with a second fixing mechanism fixedly connected with the surface of the civil structure, the second fixing anchor 32 is fixedly arranged on the second fixing block 31, the second fixing anchor 32 is fixedly connected with the other end of the carbon fiber bar 1, the inner end of the second fixing block 31 is provided with a second fixing plate 33, the outer end of the second fixing block 31 is provided with a mounting baffle 34, and a second side reinforcing plate 35 is arranged between the second fixing plate 33 and the side part of the second fixing block 31, a third side reinforcing plate 36 is arranged between the mounting baffle 34 and the side part of the second fixing block 31, a second through hole 37 is arranged on the second fixing plate 33, a second fixing screw hole (not shown) is arranged at the outer end of the second fixing anchor 32, a second fixing screw 38 is arranged in the second fixing screw hole in a screw connection mode, the second fixing screw 38 sequentially extends out of the second fixing screw hole and the second through hole 37, a second fixing nut 39 is arranged at the end part, extending out of the second through hole 37, of the second fixing screw 38 in a screw connection mode, the first fixing mechanism comprises two first mounting screw holes (not shown) distributed in the front-back direction, a first shear bolt 41 and a first shear nut 42 matched with the first mounting screw holes, the second fixing mechanism comprises two second mounting screw holes (not shown) distributed in the front-back direction, a second shear bolt 51 and a second shear nut 52 matched with the second mounting screw holes, a first clamping hole (not shown) is axially formed in the first fixing anchor 22, a second clamping hole (not shown) is axially formed in the second fixing anchor 32, one end of the carbon fiber bar 1 is fixedly clamped in the first clamping hole, and the other end of the carbon fiber bar 1 is fixedly clamped in the second clamping hole.
Example two: the remaining portions are the same as the first embodiment, except that the first fixing mechanism includes three first mounting screw holes (not shown) distributed along the front-rear direction, and the second fixing mechanism includes three second mounting screw holes (not shown) distributed along the front-rear direction.
Example three: an installation mechanism for installing a reinforcing device of a civil structure in the first embodiment comprises a jack 61, a first return plate 62, a second return plate 63 and two high-strength screws 64 respectively positioned at two sides of a second fixed block 31, wherein the first return plate 62 is positioned at the inner side of a second fixed plate 33, the inner end of a second fixed anchorage device 32 is abutted on the first return plate 62, the first return plate 62 is provided with two first through holes (not shown) respectively corresponding to the high-strength screws 64 and an installation groove 621 used for passing through a carbon fiber bar 1, the second return plate 63 is positioned at the outer side of an installation baffle 34, the jack 61 is abutted between the installation baffle 34 and the second return plate 63, two sides of the second return plate 63 are provided with two second through holes (not shown) respectively corresponding to the high-strength screws 64, one end of the high-strength screw 64 penetrates through the first through holes and is connected with the first return plate 62 through a first limit nut 65, the other end of the high-strength screw 64 passes through the second through hole and is connected with the second return plate 63 through a second limit nut 66.
Example four: the rest of the structure is the same as that of the embodiment, except that the mounting baffle 34 is provided with a limit projection (not shown) protruding toward the direction of the second return plate 63.
Claims (7)
1. A device for reinforcing a civil structure is characterized by comprising a carbon fiber bar, a first fixing component arranged at one end of the carbon fiber bar and a second fixing component arranged at the other end of the carbon fiber bar, wherein the first fixing component comprises a first fixing block and a first fixing anchor, the first fixing block is provided with a first fixing mechanism fixedly connected with the surface of a civil structure, the first fixing anchor is fixedly arranged on the first fixing block, the first fixing anchor is fixedly connected with one end of the carbon fiber bar, a pressure sensor is arranged between the first fixing anchor and the first fixing block, the second fixing component comprises a second fixing block and a second fixing anchor, the second fixing block is provided with a second fixing mechanism fixedly connected with the surface of the civil structure, the second fixing anchor is fixedly arranged on the second fixing block, the second fixing anchorage device is fixedly connected with the other end of the carbon fiber bar.
2. The device for reinforcing a civil structure as claimed in claim 1, wherein the first fixing block is provided with a first fixing plate, the first fixing plate is provided with a first through hole, the outer end of the first fixing anchor is provided with a first fixing screw hole, the first fixing screw hole is internally threaded with a first fixing screw, the first fixing screw extends out of the first fixing screw hole and the first through hole in sequence, the end of the first fixing screw extending out of the first through hole is threaded with a first fixing nut, the pressure sensor is positioned between the first fixing nut and the first fixing plate, the inner end of the second fixing block is provided with a second fixing plate, the outer end of the second fixing block is provided with an installation baffle, the second fixing plate is provided with a second through hole, the outer end of the second fixing anchor is provided with a second fixing screw hole, a second fixing screw rod is arranged in the second fixing screw hole in a threaded connection mode, the second fixing screw rod sequentially extends out of the second fixing screw hole and the second through hole, and a second fixing nut is arranged at the end portion, extending out of the second through hole, of the second fixing screw rod in a threaded connection mode.
3. The device of claim 2, wherein a first side reinforcing plate is provided between the first fixing plate and the side portion of the first fixing block, a second side reinforcing plate is provided between the second fixing plate and the side portion of the second fixing block, and a third side reinforcing plate is provided between the mounting plate and the side portion of the second fixing block.
4. The device of claim 1, wherein the first fixing means comprises at least two first mounting screw holes extending in a front-rear direction, first shear bolts and first shear nuts engaged with the first mounting screw holes, and the second fixing means comprises at least two second mounting screw holes extending in a front-rear direction, second shear bolts and second shear nuts engaged with the second mounting screw holes.
5. The device of claim 1, wherein the first fixing anchor is provided with a first clamping hole along an axial direction, the second fixing anchor is provided with a second clamping hole along an axial direction, one end of the carbon fiber bar is fixedly clamped in the first clamping hole, and the other end of the carbon fiber bar is fixedly clamped in the second clamping hole.
6. An installation mechanism for installing the reinforcing device of the civil structure as claimed in claim 2, characterized in that it comprises a jack, a first return plate, a second return plate and two high-strength screws respectively located at the two sides of the second fixing block, the first return plate is located at the inner side of the second fixing plate, the inner end of the second fixing anchor is abutted to the first return plate, the first return plate is provided with two first through holes respectively corresponding to the high-strength screws and an installation groove for passing through the carbon fiber bar, the second return plate is located at the outer side of the installation baffle, the jack is abutted between the installation baffle and the second return plate, the two sides of the second return plate are provided with two second through holes respectively corresponding to the high-strength screws, one end of the high-strength screw passes through the first through hole and passes through a first limit nut and the first through hole and the second through hole And the other end of the high-strength screw rod penetrates through the second through hole and is connected with the second return plate through a second limiting nut.
7. A mounting mechanism according to claim 6 wherein said mounting plate is provided with a stop projection projecting in the direction of said second return plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031420.5A CN110700620A (en) | 2019-10-28 | 2019-10-28 | Civil structure's reinforcing apparatus and installation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031420.5A CN110700620A (en) | 2019-10-28 | 2019-10-28 | Civil structure's reinforcing apparatus and installation mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN110700620A true CN110700620A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911031420.5A Pending CN110700620A (en) | 2019-10-28 | 2019-10-28 | Civil structure's reinforcing apparatus and installation mechanism |
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| Country | Link |
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| CN (1) | CN110700620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681794A (en) * | 2020-12-23 | 2021-04-20 | 曹雪贞 | A reinforced structure for purlin tenon |
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| CN106049300A (en) * | 2016-08-03 | 2016-10-26 | 深圳市威士邦建筑新材料科技有限公司 | Pull-type prestress carbon fiber bar tension device and construction method |
| CN106121265A (en) * | 2016-06-23 | 2016-11-16 | 山东大学 | Prestressing force, mechanical anchor external application carbon fiber sheet joint reinforcement device and method |
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| CN206458117U (en) * | 2016-12-29 | 2017-09-01 | 华北水利水电大学 | A kind of pre-stress fibre plate stretching end anchor |
| CN207597281U (en) * | 2017-11-22 | 2018-07-10 | 上海悍马建筑科技有限公司 | Pre-stressed carbon fiber tensioning equipment |
| CN208415121U (en) * | 2018-03-02 | 2019-01-22 | 张希忠 | A kind of road and bridge crack ruggedized construction |
| CN211201243U (en) * | 2019-10-28 | 2020-08-07 | 宁波大学 | Civil structure's reinforcing apparatus and installation mechanism |
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2019
- 2019-10-28 CN CN201911031420.5A patent/CN110700620A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631851A (en) * | 2014-12-26 | 2015-05-20 | 柳州欧维姆机械股份有限公司 | Prestressed carbon fiber plate tensioning device and method for tensioning prestressed carbon fiber plate |
| CN106121265A (en) * | 2016-06-23 | 2016-11-16 | 山东大学 | Prestressing force, mechanical anchor external application carbon fiber sheet joint reinforcement device and method |
| CN106049300A (en) * | 2016-08-03 | 2016-10-26 | 深圳市威士邦建筑新材料科技有限公司 | Pull-type prestress carbon fiber bar tension device and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112681794A (en) * | 2020-12-23 | 2021-04-20 | 曹雪贞 | A reinforced structure for purlin tenon |
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