CN105525766A - Prestress reinforcement device for connection wood structure and manufacturing method of prestress reinforcement device - Google Patents
Prestress reinforcement device for connection wood structure and manufacturing method of prestress reinforcement device Download PDFInfo
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- CN105525766A CN105525766A CN201610086975.XA CN201610086975A CN105525766A CN 105525766 A CN105525766 A CN 105525766A CN 201610086975 A CN201610086975 A CN 201610086975A CN 105525766 A CN105525766 A CN 105525766A
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- reinforcement
- curved plate
- ground tackle
- stretching
- steel band
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- 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
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- 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
- E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides a prestress reinforcement device for a connection wood structure and a manufacturing method of the prestress reinforcement device. The prestress reinforcement device comprises fixed end reinforcement parts, supporting end reinforcement parts and tensioning end reinforcement parts which are arranged in the length direction of the connection wood structure. The prestress reinforcement device is suitable for prestress reinforcement of a common wood structure and can be also used for the connection wood structure. The prestress reinforcement device is used for repairing and reinforcement of the connection wood structure and can effectively prevent an original wood structure from being repaired extensively, meanwhile, the device has excellent anti-corrosion performance, and the corrosion problem of a steel structure for reinforcement in a traditional wood structure is solved; besides, the prestress reinforcement device is simple and convenient to mount, dismantling is not required, after mounting is finished, the mechanical characteristics of the device are directly used during prestress tensioning, the tensioning process is convenient and reliable, and the prestress reinforcement device is applicable to purlines, rafters, lifting beams, floor beams and other members connected in a wood-structure roof.
Description
Technical field
The present invention relates to a kind of prestressing force intensifier and manufacture method thereof of continued access wooden construction.
Background technology
On the architectural history of China, historic building structure occupies a very important part undoubtedly, and as the rarity of China's art of building, its historical role is attracted attention very much.The design feature of wooden construction itself is, draw materials conveniently, speed of application is fast and simple, has good energy dissipation ability simultaneously.But due to the characteristic of wooden construction itself, along with the growth of service time, easily there is certain damage in itself.For wooden roof place purlin, wattle and lift the component such as beam, floor beam, often damage by worms, tide rotten, make this class A of geometric unitA lose supporting capacity.
At present, common wooden construction has two kinds: one class to be traditional repairerment method for the strengthening by reparative method method of this class A of geometric unitA, by whole component is replaced, component disassembles by the method from total, new component is installed, to reach the object of repairerment, for this kind of method, its applicable surface is narrower, particularly lift girder construction and roof structure for large-scale, it is changed component and there is the problem needing to fall frame, and the frame that falls of large-scale wooden construction needs larger engineering quantity, and difficulty of construction is large, need timber engineering teacher possessing rich experiences, a large amount of manpower and materials are supported, when the repairerment carrying out historic building structure is safeguarded, the repairerment principle adhered to be " with old repair old ", and change the history relic value that component method destroys component itself undoubtedly, therefore, in the repairerment field of ancient building, the application changing component method is few.The second strengthening by reparative method method be by generation is seriously damaged by worms, tide is after rotten position blocks, by rotten Partial Resection, again two components separated are carried out continued access, compared with first method, this kind of repairerment method, without the need to carrying out falling frame, directly carries out the repairerment of component in original place, engineering quantity significantly reduces, but also there is certain deficiency in this kind of method, that is just through the component of continued access, and the intensity of itself and rigidity compare the reduction that there have been previous to a certain degree.Particularly in continued access place, it becomes pin joint from original affixed point, and depression of bearing force is obvious, and therefore through the component of continued access, its member integrated intensity and rigidity are not so good as integral component before.
Renovation reinforced for such continued access component, common engineering method is repaired by affixing carbon fabric direct on continued access component, and this kind of method has lifting to a certain degree for the intensity of continued access component, but in rigidity lifting limited efficiency.Meanwhile, such repairerment method belongs to passive enforcement method, just cannot reduce the mid-span deflection of component in carrying early stage.
Summary of the invention
The technical problem to be solved in the present invention is to overcome above-mentioned the deficiencies in the prior art; design one can be carried out prestressed strengthening by reparative method to this kind of continued access wooden construction easily on continued access component, be applied this prestressing force intensifier; and prestressed stretch-draw can be carried out easily; simultaneously; the installation process of this structure does not produce damage to log timberstructure; protect the antique value of ancient building, this device adopts all steel to make, and scribbles highly effective antirust paint on surface.Installation process is easy, and expense is low, broad covered area, has expanded prestressing technique repairs field application at historic building structure.
Specific embodiment of the invention scheme is: a kind of prestressing force intensifier of continued access wooden construction, comprise the fixed end reinforcement arranged along continued access wooden construction length direction, support end reinforcement, and stretching end reinforcement, described fixed end reinforcement comprises the fixed end top steel band at top, steel band both sides, described fixed end top are connected with fixed end curved plate, described fixed end curved plate inwall and wooden piece external surface to be reinforced fit, described fixed end curved plate both sides are fixed with fixed end sidepiece ground tackle, described fixed end curved plate bottom is provided with ground tackle bottom fixed end, bottom described fixed end sidepiece ground tackle and fixed end, ground tackle outer is provided with slotted eye, leave gap between fixed end curved plate lower end, both sides and be provided with adpting flange.
Further, described support end reinforcement comprises the support end top steel band at top, steel band both sides, described support end top are connected with support end curved plate, described support end curved plate inwall and wooden piece external surface to be reinforced fit, described support end curved plate both sides are fixed with support end sidepiece ground tackle, described support end curved plate bottom is provided with ground tackle bottom support end, bottom described support end sidepiece ground tackle and support end, ground tackle outer is provided with slotted eye, leaves gap and be provided with adpting flange between supported on both sides end curved plate lower end.
Further, described stretching end reinforcement comprises the stretching end top steel band at top, steel band both sides, described stretching end top are connected with stretching end curved plate, described stretching end curved plate inwall and wooden piece external surface to be reinforced fit, described stretching end curved plate both sides are fixed with stretching end sidepiece ground tackle, described stretching end curved plate bottom is provided with ground tackle bottom stretching end, be provided with circular hole in the middle part of ground tackle bottom described stretching end sidepiece ground tackle and stretching end, leave gap between stretching end curved plate lower end, described both sides and be provided with adpting flange.
Further, described support end reinforcement, be provided with two or more.
Further, described adpting flange comprises symmetrically arranged two flanged plates, lock bolt on two flanged plates.
Further, described fixed end top steel band is fixedly connected with by the bolt run through with stretching end curved plate with support end curved plate, stretching end top steel band with fixed end curved plate, support end top steel band.
Further, described fixed end reinforcement, support end reinforcement and stretching end reinforcement periphery are provided with antirust coat.
Further, the slotted eye of described fixed end sidepiece ground tackle is corresponding with the slotted eye position of support end sidepiece ground tackle to be arranged, the slotted eye of ground tackle and the slotted eye position of ground tackle bottom support end is corresponding arranges bottom fixed end.
The present invention also comprises a kind of manufacture method of prestressing force intensifier of continued access wooden construction, comprises the following steps:
1) according to wood structures dimensional conditions, fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined;
2) the wood structures sectional dimension of fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined, according to the top steel band of situation determination various piece and the size of curved plate of size, make it to fit with the periphery of place wood structures, the curved plate that each increases part welds sidepiece ground tackle, bottom ground tackle and flanged plate;
3) between the flanged plate of fixed end reinforcement, support end reinforcement and stretching end reinforcement, spacing is 15 ~ 20mm;
4) the top steel band of fixed end reinforcement, support end reinforcement and stretching end reinforcement and curved plate are bolted to connection, and the bending length of top steel band gets 1/4 member height;
5) slotted eye on each sidepiece ground tackle of fixed end reinforcement, support end reinforcement and stretching end reinforcement or circular hole correspondence arrange be beneficial to follow-up through steel wire.
Compared with prior art, the present invention has following beneficial effect: the present invention is by arranging a kind of prestressing force intensifier of continued access wooden construction on continuing component at wooden construction, comprise the fixed end reinforcement arranged along continued access wooden construction length direction, support end reinforcement, and stretching end reinforcement, later stage conveniently can coordinate by steel wire ground tackle the prestressed reinforcement conveniently carrying out wooden construction continued access component, this cover intensifier is easy to make, expense is lower simultaneously, when mounted, without the need to dropping into a large amount of manpower and materials, this device is used to carry out prestressed reinforcing, effectively can improve intensity and the rigidity of such continued access wooden construction.
Accompanying drawing explanation
Fig. 1 is anchored end reinforcement structure schematic diagram of the present invention;
Fig. 2 is supported end reinforcement structure schematic diagram of the present invention;
Fig. 3 is invention stretching end reinforcement structure schematic diagram;
In figure: 1, anchored end top steel band, 2, anchored end curved plate, 3, anchored end side ground tackle, 4, anchored end bottom surface ground tackle, 5, anchored end flanged plate, 6, supported end top steel band, 7, supported end curved plate, 8, supported end side ground tackle, 9, supported end bottom surface ground tackle, 10, supported end flanged plate, 11, stretching end top steel band, 12, stretching end curved plate, 13, stretching end side ground tackle, 14, stretching end bottom surface ground tackle, 15, stretching end flanged plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figures 1 to 3, the prestressing force intensifier of a kind of continued access wooden construction of the present invention designs according to the real size of splicing structure, altogether comprise three parts: anchored end reinforcement one, supported end reinforcement two and stretching end reinforcement one, wherein, supported end reinforcement installation site is selected according to actual conditions, can be selected in continued access point both sides 150mm-250mm distance.
In FIG, anchored end reinforcement is made up of following components: anchored end top steel band 1, anchored end top thickness of strips gets 3mm, and centre is horizontal segment, and beam-ends is arc section, arc section crooked process radius is identical with continued access wooden frame sectional dimension, bending length gets 1/4 member height, and the width of anchored end top steel band 1 gets 80mm, along anchored end top steel band 1 width, 2 diameter 10mm bolts hole are opened in side, four altogether; Both sides anchored end curved plate 2, totally two pieces, thickness gets 4mm, anchored end curved plate 2 wraps continued access wooden construction, its radius is identical with continued access wooden construction, and on anchored end curved plate 2 top, 4 diameters are opened in every side is in the width direction 10mm circular hole, circular hole position alignment on circular hole position and steel band, curved plate width gets 300mm, and bottom is connected with two pieces of fixed end flanged plates 5 by welding; The sidepiece of anchored end curved plate 2 is welded with anchored end side ground tackle 3, and width gets 15mm, and anchored end side ground tackle 3 has slotted eye, and slot size is 3.2mm*10mm, and each anchored end side ground tackle 3 opens two slotted eyes, slot pitch 25mm; Bottom surface ground tackle 4, width gets 15mm, and be admittedly fixed on bottom circular arc steel plate 2 by welding by it, grooved bore on bottom surface ground tackle 4, slot size is 3.2mm*10mm, and each anchored end bottom surface ground tackle 4 opens two slotted eyes, slot pitch 25mm; Fixed end flanged plate 5 thickness gets 8mm, width 20mm, length 300mm, opening 6 diameters along fixed end flanged plate 5 length direction is the circular hole of 10mm, totally two pieces of flanged plates, fixed end flanged plate 5 is welded with anchored end curved plate 2 by welding, and between two pieces of flanged plates, spacing is 20mm.Final assembling completes, and forms complete anchored end reinforcement.
In fig. 2, supported end reinforcement is made up of following components: supported end top steel band 6, supported end top steel band 6 thickness gets 3mm, and centre is horizontal segment, and beam-ends is arc section, arc section crooked process radius is identical with continued access wooden frame sectional dimension, the bending length of supported end top steel band 6 gets 1/4 member height, and supported end top steel band 6 width gets 40mm, along supported end top steel band 6 width, 2 diameter 10mm bolts hole are opened in side, four altogether; Steel band 6 both sides, supported end top are provided with supported end curved plate 7, totally two pieces, thickness gets 4mm, supported end curved plate 7 wraps continued access wooden construction, its radius is identical with continued access wooden construction, and on supported end curved plate 7 top, 2 diameters are opened in every side is in the width direction 10mm circular hole, circular hole position alignment on circular hole position and steel band, curved plate width gets 100mm, and bottom is connected with two pieces of supported end flanged plates 10 by welding; Supported end curved plate 7 both sides are welded with supported end side ground tackle 8, and width gets 15mm, grooved bore on supported end side ground tackle 8, slot size is 3.2mm*10mm, and each supported end side ground tackle 8 opens two slotted eyes, slot pitch 25mm; Supported end bottom surface ground tackle 9, width gets 15mm, and be admittedly fixed on bottom supported end curved plate 7 by welding by it, grooved bore on supported end bottom surface ground tackle 9, slot size is 3.2mm*10mm, and two slotted eyes opened by each bottom surface ground tackle, slot pitch 25mm; Supported end flanged plate 10, thickness gets 8mm, width 20mm, length 100mm, opening 4 diameters along supported end flanged plate 10 length direction is the circular hole of 10mm, totally two pieces of flanged plates, supported end flanged plate 10 is welded with supported end curved plate 7 by welding, and between two pieces of supported end flanged plates, spacing is 20mm.Final assembling completes, and forms complete supported end reinforcement.
In figure 3, stretching end is made up of following components: stretching end top steel band 11, stretching end top steel band 11 thickness gets 3mm, and centre is horizontal segment, and the beam-ends of stretching end top steel band 11 is arc section, arc section crooked process radius is identical with continued access wooden frame sectional dimension, bending length gets 1/4 member height, and stretching end top steel band 11 width gets 80mm, along steel band 1 width, 2 diameter 10mm bolts hole are opened in side, four altogether; Both sides stretching end curved plate 12, totally two pieces, thickness gets 4mm, stretching end curved plate 12 wraps continued access wooden construction, its radius is identical with continued access wooden construction, and on stretching end curved plate 12 top, 4 diameters are opened in every side is in the width direction 10mm circular hole, circular hole position alignment on circular hole position and steel band, stretching end curved plate 12 width gets 300mm, and bottom is connected with two pieces of flanged plates by welding; Stretching end side ground tackle 13, width gets 15mm, and be fixed in stretching end circular arc steel plate 12 both sides by welding, circular hole opened by stretching end side ground tackle 13, Circularhole diameter 10mm, two circular holes opened by each side ground tackle, circular hole spacing 25mm; Stretching end bottom surface ground tackle 14, stretching end bottom surface ground tackle 14 width gets 15mm, is admittedly fixed on bottom stretching end curved plate 12 by welding by it, circular hole opened by stretching end bottom surface ground tackle 14, Circularhole diameter 10mm, two circular holes opened by each bottom surface ground tackle, circular hole spacing 25mm; And stretching end flanged plate 15, thickness gets 8mm, width 20mm, length 300mm, opening 6 diameters along stretching end flanged plate 15 length direction is the circular hole of 10mm, totally two pieces of stretching end flanged plates 15, stretching end flanged plate 15 is welded with stretching end curved plate 12 by welding, and between two pieces of flanged plates, spacing is 20mm.Final assembling completes, and forms complete stretching end reinforcement.
The present invention also comprises a kind of manufacture method of prestressing force intensifier of continued access wooden construction, comprises the following steps:
1) according to wood structures dimensional conditions, fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined;
2) the wood structures sectional dimension of fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined, according to the top steel band of situation determination various piece and the size of curved plate of size, make it to fit with the periphery of place wood structures, the curved plate that each increases part welds sidepiece ground tackle, bottom ground tackle and flanged plate;
3) between the flanged plate of fixed end reinforcement, support end reinforcement and stretching end reinforcement, spacing is 15 ~ 20mm;
4) the top steel band of fixed end reinforcement, support end reinforcement and stretching end reinforcement and curved plate are bolted to connection, and the bending length of top steel band gets 1/4 member height;
5) slotted eye on each sidepiece ground tackle of fixed end reinforcement, support end reinforcement and stretching end reinforcement or circular hole correspondence arrange be beneficial to follow-up through steel wire.
During use, carry out bottom surface compressor wire and side compressor wire stretch-draw, make steel wire pass the slotted eye of various piece ground tackle or circular hole and be strained and fixed at steel cord ends, complete wooden construction enhancing work.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (9)
1. the prestressing force intensifier of a continued access wooden construction, it is characterized in that, comprise the fixed end reinforcement arranged along continued access wooden construction length direction, support end reinforcement, and stretching end reinforcement, described fixed end reinforcement comprises the fixed end top steel band at top, steel band both sides, described fixed end top are connected with fixed end curved plate, described fixed end curved plate inwall and wooden piece external surface to be reinforced fit, described fixed end curved plate both sides are fixed with fixed end sidepiece ground tackle, described fixed end curved plate bottom is provided with ground tackle bottom fixed end, bottom described fixed end sidepiece ground tackle and fixed end, ground tackle outer is provided with slotted eye, leave gap between fixed end curved plate lower end, both sides and be provided with adpting flange.
2. the prestressing force intensifier of continued access wooden construction according to claim 1, it is characterized in that, described support end reinforcement comprises the support end top steel band at top, steel band both sides, described support end top are connected with support end curved plate, described support end curved plate inwall and wooden piece external surface to be reinforced fit, described support end curved plate both sides are fixed with support end sidepiece ground tackle, described support end curved plate bottom is provided with ground tackle bottom support end, bottom described support end sidepiece ground tackle and support end, ground tackle outer is provided with slotted eye, leave gap between supported on both sides end curved plate lower end and be provided with adpting flange.
3. the prestressing force intensifier of continued access wooden construction according to claim 2, it is characterized in that, described stretching end reinforcement comprises the stretching end top steel band at top, steel band both sides, described stretching end top are connected with stretching end curved plate, described stretching end curved plate inwall and wooden piece external surface to be reinforced fit, described stretching end curved plate both sides are fixed with stretching end sidepiece ground tackle, described stretching end curved plate bottom is provided with ground tackle bottom stretching end, circular hole is provided with in the middle part of ground tackle bottom described stretching end sidepiece ground tackle and stretching end, leave gap between stretching end curved plate lower end, described both sides and be provided with adpting flange.
4. the prestressing force intensifier of a kind of continued access wooden construction according to claim 3, is characterized in that, described support end reinforcement, is provided with two or more.
5. the prestressing force intensifier of a kind of continued access wooden construction according to claim 1, is characterized in that, described adpting flange comprises symmetrically arranged two flanged plates, lock bolt on two flanged plates.
6. the prestressing force intensifier of a kind of continued access wooden construction according to claim 1, it is characterized in that, described fixed end top steel band is fixedly connected with by the bolt run through with stretching end curved plate with support end curved plate, stretching end top steel band with fixed end curved plate, support end top steel band.
7. the prestressing force intensifier of a kind of continued access wooden construction according to claim 1, is characterized in that, described fixed end reinforcement, support end reinforcement and stretching end reinforcement periphery are provided with antirust coat.
8. the prestressing force intensifier of a kind of continued access wooden construction according to claim 1, it is characterized in that, the slotted eye of described fixed end sidepiece ground tackle is corresponding with the slotted eye position of support end sidepiece ground tackle to be arranged, the slotted eye of ground tackle and the slotted eye position of ground tackle bottom support end is corresponding arranges bottom fixed end.
9. manufacture a manufacture method for the prestressing force intensifier of continued access wooden construction as claimed in claim 4, comprise the following steps:
1) according to wood structures dimensional conditions, fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined;
2) the wood structures sectional dimension of fixed end reinforcement, support end reinforcement and stretching end reinforcement position is determined, according to the top steel band of situation determination various piece and the size of curved plate of size, make it to fit with the periphery of place wood structures, the curved plate that each increases part welds sidepiece ground tackle, bottom ground tackle and flanged plate;
3) between the flanged plate of fixed end reinforcement, support end reinforcement and stretching end reinforcement, spacing is 15 ~ 20mm;
4) the top steel band of fixed end reinforcement, support end reinforcement and stretching end reinforcement and curved plate are bolted to connection, and the bending length of top steel band gets 1/4 member height;
5) slotted eye on each sidepiece ground tackle of fixed end reinforcement, support end reinforcement and stretching end reinforcement or circular hole correspondence arrange be beneficial to follow-up through steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086975.XA CN105525766B (en) | 2016-02-16 | 2016-02-16 | The prestressing force intensifier and its manufacture method of a kind of continued access timber structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086975.XA CN105525766B (en) | 2016-02-16 | 2016-02-16 | The prestressing force intensifier and its manufacture method of a kind of continued access timber structure |
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| CN105525766A true CN105525766A (en) | 2016-04-27 |
| CN105525766B CN105525766B (en) | 2018-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220178158A1 (en) * | 2020-12-07 | 2022-06-09 | Fuzhou University | Device and method for reinforcing round section wood beam by combination of prestressed frp sheet and high strength steel wire rope |
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|---|---|---|---|---|
| JP2008008090A (en) * | 2006-06-30 | 2008-01-17 | Daisan Seiko Kk | Strip-shaped steel plate for reinforcing column body |
| CN103850445A (en) * | 2014-03-12 | 2014-06-11 | 扬州大学 | Reset reinforcing method for deformation of pavilion timer frame building |
| CN103938884A (en) * | 2014-03-25 | 2014-07-23 | 上海市建筑科学研究院(集团)有限公司 | Method for fastening mortise and tenon joint wood frame by using steel hoop |
| CN205348832U (en) * | 2016-02-16 | 2016-06-29 | 福州大学 | Prestressing force reinforcing means of continuous grafting structure |
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2016
- 2016-02-16 CN CN201610086975.XA patent/CN105525766B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008008090A (en) * | 2006-06-30 | 2008-01-17 | Daisan Seiko Kk | Strip-shaped steel plate for reinforcing column body |
| CN103850445A (en) * | 2014-03-12 | 2014-06-11 | 扬州大学 | Reset reinforcing method for deformation of pavilion timer frame building |
| CN103938884A (en) * | 2014-03-25 | 2014-07-23 | 上海市建筑科学研究院(集团)有限公司 | Method for fastening mortise and tenon joint wood frame by using steel hoop |
| CN205348832U (en) * | 2016-02-16 | 2016-06-29 | 福州大学 | Prestressing force reinforcing means of continuous grafting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220178158A1 (en) * | 2020-12-07 | 2022-06-09 | Fuzhou University | Device and method for reinforcing round section wood beam by combination of prestressed frp sheet and high strength steel wire rope |
| US11674323B2 (en) * | 2020-12-07 | 2023-06-13 | Fuzhou University | Device and method for reinforcing round section wood beam by combination of prestressed FRP sheet and high strength steel wire rope |
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| CN105525766B (en) | 2018-01-12 |
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Application publication date: 20160427 Assignee: Fujian Maohong Construction Engineering Co.,Ltd. Assignor: FUZHOU University Contract record no.: X2022350000033 Denomination of invention: A kind of prestress strengthening device for continuous wood structure and its manufacturing method Granted publication date: 20180112 License type: Common License Record date: 20220916 |