CN105525766B - The prestressing force intensifier and its manufacture method of a kind of continued access timber structure - Google Patents

The prestressing force intensifier and its manufacture method of a kind of continued access timber structure Download PDF

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Publication number
CN105525766B
CN105525766B CN201610086975.XA CN201610086975A CN105525766B CN 105525766 B CN105525766 B CN 105525766B CN 201610086975 A CN201610086975 A CN 201610086975A CN 105525766 B CN105525766 B CN 105525766B
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reinforcement
stretching
support
anchorage
anchored
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CN105525766A (en
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沈圣
姜绍飞
张鹰
张伟翔
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Fuzhou University
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Fuzhou University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0248Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood

Abstract

The present invention provides a kind of the prestressing force intensifier and its manufacture method of continued access timber structure, including the fixing end reinforcement, support end reinforcement and stretching end reinforcement set along continued access timber structure length direction, invention is applicable not only to the prestressed reinforcement of common timber structure, while also can be suitably used in continued access timber structure.The renovation reinforced of continued access timber structure is carried out using the device, can effectively avoid the big benefit that carried out large repairs to log timberstructure, while the device has outstanding Corrosion Protection, compensate for the etching problem of steel structure reinforcing in traditional timber structure.Meanwhile the simple installation of the intensifier, without carrying out falling frame, after installation, when carrying out prestressed stretch-draw, the device mechanical characteristic of itself is directly utilized, stretching process is convenient reliable, the component such as the purlin of continued access, wattle and lift beam, floor beam suitable for wooden roof.

Description

The prestressing force intensifier and its manufacture method of a kind of continued access timber structure
Technical field
The present invention relates to a kind of prestressing force intensifier of continued access timber structure and its manufacture method.
Background technology
On the architectural history in China, historic building structure undoubtedly occupies a very important part, is built as China The rarity of art, its historical role are attracted attention very much.Timber structure being structurally characterized in that in itself, convenient material drawing, speed of application are fast It is prompt easy, while there is good energy dissipation ability.However, the characteristic due to timber structure in itself, with the increasing of usage time Long, easily there is certain damage in itself.The components such as purlin, wattle and lift beam, floor beam at wooden roof, warp Often damage by worms, be damp rotten so that this kind of component loses bearing capacity.
At present, common timber structure has two kinds for the strengthening by reparative method method of such component:One kind is traditional repairerment method, is led to Cross and be replaced whole component, this method disassembles component from total, and new component is installed, to reach The purpose of repairerment, for this kind of method, its applicable surface is narrower, and especially for large-scale lift girder construction and roof structure, it is more The problem of component is there is needing frame is changed, and the frame that falls of large-scale timber structure needs larger quantities, and difficulty of construction is big, needs Possess timber engineering teacher of rich experiences, substantial amounts of manpower and materials are supported, carry out historic building structure repairerment When safeguarding, the repairerment principle adhered to be " with it is old repair it is old ", and change component method and undoubtedly destroy the history relic valency of component in itself Value, therefore, in the repairerment field of ancient building, the application for changing component method is few.Second of strengthening by reparative method method is by that will send out After the position that life is seriously damaged by worms, tide is rotten is blocked, continued accesses are carried out by rotten Partial Resection, then by two separated components, with first Kind method is compared, and this kind of repairerment method need not be carried out falling frame, and the repairerment of component is directly carried out in original place, and quantities is greatly reduced, But there is also certain deficiency for this kind of method, that is, by the component of continued access, before the intensity and rigidity of itself are compared There is a certain degree of reduction.Particularly at continued access, it is changed into pin joint from original affixed point, and depression of bearing force is bright It is aobvious, therefore the component Jing Guo continued access, its component bulk strength and rigidity have been not so good as integral component before.
For the renovation reinforced of such continued access component, common engineering method is by directly pasting carbon on continued access component Fiber cloth is repaired, and this kind of method have a certain degree of lifting for the intensity of continued access component, but in rigidity lifting side Face effect is limited.Meanwhile such repairerment method belongs to passive enforcement method, the span centre that can not just reduce component early stage in carrying is scratched Degree.
The content of the invention
The technical problem to be solved in the present invention is that in order to overcome the above-mentioned deficiencies of the prior art, design one kind can be easily Prestressed strengthening by reparative method is carried out to this kind of continued access timber structure the prestressing force intensifier is applied on continued access component, and can be square Just the prestressed tensioning of carry out, meanwhile, the installation process of the structure does not produce damage to log timberstructure, protects ancient building Antique value, the device are made using all steel, and highly effective antirust paint is scribbled on surface.Installation process is easy, and expense is low, Broad covered area, the application that prestressing technique repairs field in historic building structure is expanded.
Specific embodiments of the present invention are:A kind of prestressing force intensifier of continued access timber structure, including tied along continued access wood Fixing end reinforcement, support end reinforcement and the stretching end reinforcement that structure length direction is set, the fixing end reinforcement bag Steel band at the top of the fixing end at top is included, steel band both sides are connected with fixing end curved plate, the fixing end at the top of the fixing end Curved plate inwall fits with wooden piece outer surface to be reinforced, and the fixing end curved plate both sides are fixed with fixing end sidepiece Anchorage, the fixing end curved plate bottom are provided with fixing end bottom anchorage, the fixing end sidepiece anchorage and fixing end bottom Anchorage outer is provided with slotted eye, and gap is left between the fixing end curved plate lower end of both sides and is provided with adpting flange.
Further, the support end reinforcement includes steel band at the top of the support end at top, support end top steel band Both sides are connected with support end curved plate, and the support end curved plate inwall fits with wooden piece outer surface to be reinforced, institute State support end curved plate both sides and be fixed with support end sidepiece anchorage, the support end curved plate bottom is provided with support end bottom Anchorage, the support end sidepiece anchorage and support end bottom anchorage outer are provided with slotted eye, supported on both sides end curved plate lower end it Between leave gap and be provided with adpting flange.
Further, the stretching end reinforcement includes steel band at the top of the stretching end at top, stretching end top steel band Both sides are connected with stretching end curved plate, and the stretching end curved plate inwall fits with wooden piece outer surface to be reinforced, institute State stretching end curved plate both sides and be fixed with stretching end sidepiece anchorage, the stretching end curved plate bottom is provided with stretching end bottom Anchorage, is provided with circular hole in the middle part of the stretching end sidepiece anchorage and stretching end bottom anchorage, under the both sides stretching end curved plate Gap is left between end and is provided with adpting flange.
Further, the support end reinforcement, provided with two or more.
Further, the adpting flange includes symmetrically arranged two flanged plates, clamping screw on two flanged plates.
Further, steel band and steel band and support end arc at the top of fixing end curved plate, support end at the top of the fixing end Shape steel plate, at the top of stretching end steel band and stretching end curved plate by through bolt be fixedly connected.
Further, the fixing end reinforcement, support end reinforcement and stretching end reinforcement periphery are provided with antirust Layer.
Further, the slotted eye position correspondence of the slotted eye of the fixing end sidepiece anchorage and support end sidepiece anchorage is set, The slotted eye of fixing end bottom anchorage is set with the slotted eye position correspondence of support end bottom anchorage.
Present invention additionally comprises a kind of manufacture method of the prestressing force intensifier of continued access timber structure, comprise the following steps:
1)According to wood structures dimensional conditions, fixing end reinforcement, support end reinforcement and stretching end enhancing are determined Part position;
2)Determine the wood structures of fixing end reinforcement, support end reinforcement and stretching end reinforcement position Sectional dimension, the top steel band of various pieces and the size of curved plate are determined according to the situation of size, are allowed to tie with place wood The periphery of structure component is fitted, and sidepiece anchorage, bottom anchorage and flanged plate are welded on the curved plate of each increase part;
3)Between the flanged plate of fixing end reinforcement, support end reinforcement and stretching end reinforcement spacing be 15~ 20mm;
4)The top steel band and curved plate of fixing end reinforcement, support end reinforcement and stretching end reinforcement pass through Bolt is fixedly connected, and the bending length of top steel band takes 1/4 member height;
5)Slotted eye on each sidepiece anchorage of fixing end reinforcement, support end reinforcement and stretching end reinforcement or Circular hole is correspondingly arranged in favor of subsequently passing through steel wire.
Compared with prior art, the invention has the advantages that:The present invention is set on component by being continued in timber structure Put a kind of prestressing force intensifier of continued access timber structure, including set along continued access timber structure length direction fixing end reinforcement, Support end reinforcement and stretching end reinforcement, later stage conveniently can coordinate convenient progress timber structure continued access structure by steel wire anchorage The prestressed reinforcement of part, the set intensifier is easy to make, while expense is relatively low, when mounted, without putting into substantial amounts of manpower Material resources, prestressed reinforcing is carried out using the device, the intensity and rigidity of such continued access timber structure can be effectively improved.
Brief description of the drawings
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:1st, steel band at the top of anchored end, 2, anchored end curved plate, 3, anchoring end side surface anchorage, 4, anchored end bottom surface Anchorage, 5, anchored end flanged plate, 6, steel band at the top of supported end, 7, supported end curved plate, 8, supporting end side surface anchorage, 9, supporting Hold bottom surface anchorage, 10, supported end flanged plate, 11, steel band at the top of stretching end, 12, stretching end curved plate, 13, tensioning end side surface Anchorage, 14, stretching end bottom surface anchorage, 15, stretching end flanged plate.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, a kind of prestressing force intensifier of continued access timber structure of the present invention is according to the reality of splicing structure Size is designed, altogether including three parts:Anchored end reinforcement one, supported end reinforcement two and stretching end reinforcement One, wherein, supported end reinforcement installation site selects according to actual conditions, can be selected in continued access point both sides 150mm-250mm away from From.
In Fig. 1, anchored end reinforcement is made up of following components:Steel band 1 at the top of anchored end, anchored end top steel band Thickness takes 3mm, and centre is horizontal segment, and beam-ends is arc section, and arc section crooked process radius is identical with continued access wooden frame sectional dimension, bending Length takes 1/4 member height, and the width of anchored end top steel band 1 takes 80mm, along the anchored end top width of steel band 1, side Open 2 diameter 10mm bolts hole, four altogether;Both sides anchored end curved plate 2, totally two pieces, thickness takes 4mm, anchored end arc Steel plate 2 wraps continued access timber structure, and its radius is identical with continued access timber structure, on the top of anchored end curved plate 2 in the width direction 4 a diameter of 10mm circular holes are opened per side, circular hole position takes 300mm, bottom with circular hole position alignment on steel band, curved plate width Portion is connected by welding with two pieces of fixing end flanged plates 5;The sidepiece of anchored end curved plate 2 is welded with anchoring end side surface anchorage 3, Width takes 15mm, and anchoring end side surface anchorage 3 is provided with slotted eye, slot size 3.2mm*10mm, and each end side surface anchorage 3 that anchors is opened Two slotted eyes, slotted eye spacing 25mm;Bottom surface anchorage 4, width takes 15mm, and it is fixed on to the bottom of circular arc steel plate 2 admittedly by welding, The grooved bore on bottom surface anchorage 4, slot size 3.2mm*10mm, each anchored end bottom surface anchorage 4 open two slotted eyes, between slotted eye Away from 25mm;The thickness of fixing end flanged plate 5 takes 8mm, width 20mm, length 300mm, and 6 are opened along the length direction of fixing end flanged plate 5 A diameter of 10mm circular hole, totally two pieces of flanged plates, fixing end flanged plate 5 are welded by welding with anchored end curved plate 2, Spacing is 20mm between two pieces of flanged plates.Finally it is completed, forms complete anchored end reinforcement.
In fig. 2, supported end reinforcement is made up of following components:Steel band 6 at the top of supported end, supported end top steel band 6 thickness take 3mm, and centre is horizontal segment, and beam-ends is arc section, and arc section crooked process radius is identical with continued access wooden frame sectional dimension, branch The bending length of steel band 6 takes 1/4 member height at the top of socket end, and the supported end top width of steel band 6 takes 40mm, along supported end top steel 2 diameter 10mm bolts hole are opened in the width of band 6, side, four altogether;The both sides of steel band 6 are provided with supported end arc at the top of supported end Shape steel plate 7, totally two pieces, thickness takes 4mm, and supported end curved plate 7 wraps continued access timber structure, its radius and continued access timber structure phase Together, 2 a diameter of 10mm circular holes are opened per side in the width direction on the top of supported end curved plate 7, circular hole position with steel band Circular hole position alignment, curved plate width take 100mm, and bottom is connected by welding with two pieces of supported end flanged plates 10;Supported end The both sides of curved plate 7 are welded with supporting end side surface anchorage 8, and width takes 15mm, the grooved bore on supporting end side surface anchorage 8, slotted eye Size is 3.2mm*10mm, and each end side surface anchorage 8 that supports opens two slotted eyes, slotted eye spacing 25mm;Supported end bottom surface anchorage 9, Width takes 15mm, and it is fixed on to the bottom of supported end curved plate 7 admittedly by welding, the grooved bore on supported end bottom surface anchorage 9, Slot size is 3.2mm*10mm, and each bottom surface anchorage opens two slotted eyes, slotted eye spacing 25mm;Supported end flanged plate 10, thickness 8mm, width 20mm, length 100mm are taken, 4 a diameter of 10mm circular hole is opened along the length direction of supported end flanged plate 10, totally two pieces Flanged plate, supported end flanged plate 10 are welded with supported end curved plate 7 by welding, between two pieces of supported end flanged plates between Away from for 20mm.Finally it is completed, forms complete supported end reinforcement.
In figure 3, stretching end is made up of following components:Steel band 11 at the top of stretching end, stretching end top steel band 11 are thick Degree takes 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 and continued access wooden frame Sectional dimension is identical, and bending length takes 1/4 member height, and the stretching end top width of steel band 11 takes 80mm, along the width side of steel band 1 2 diameter 10mm bolts hole are opened to, side, four altogether;Both sides stretching end curved plate 12, totally two pieces, thickness takes 4mm, Pull end curved plate 12 wraps continued access timber structure, and its radius is identical with continued access timber structure, on the top of stretching end curved plate 12 4 a diameter of 10mm circular holes, circular hole position and circular hole position alignment on steel band, stretching end arc-shaped steel are opened per side in the width direction The width of plate 12 takes 300mm, and bottom is connected by welding with two pieces of flanged plates;Tensioning end side surface anchorage 13, width takes 15mm, passes through Welding is fixed in the both sides of stretching end circular arc steel plate 12, opens circular hole on tensioning end side surface anchorage 13, Circularhole diameter 10mm, often Individual side anchorage opens two circular holes, circular hole spacing 25mm;Stretching end bottom surface anchorage 14, the width of stretching end bottom surface anchorage 14 take 15mm, it is fixed on by welding by the bottom of stretching end curved plate 12 admittedly, circular hole, circular hole are opened on stretching end bottom surface anchorage 14 Diameter 10mm, each bottom surface anchorage open two circular holes, circular hole spacing 25mm;And stretching end flanged plate 15, thickness take 8mm, width 20mm, length 300mm, 6 a diameter of 10mm circular hole is opened along the length direction of stretching end flanged plate 15, totally two pieces of tensioning end flanges Plate 15, stretching end flanged plate 15 are welded by welding with stretching end curved plate 12, and spacing is between two pieces of flanged plates 20mm.Finally it is completed, forms complete stretching end reinforcement.
Present invention additionally comprises a kind of manufacture method of the prestressing force intensifier of continued access timber structure, comprise the following steps:
1)According to wood structures dimensional conditions, fixing end reinforcement, support end reinforcement and stretching end enhancing are determined Part position;
2)Determine the wood structures of fixing end reinforcement, support end reinforcement and stretching end reinforcement position Sectional dimension, the top steel band of various pieces and the size of curved plate are determined according to the situation of size, are allowed to tie with place wood The periphery of structure component is fitted, and sidepiece anchorage, bottom anchorage and flanged plate are welded on the curved plate of each increase part;
3)Between the flanged plate of fixing end reinforcement, support end reinforcement and stretching end reinforcement spacing be 15~ 20mm;
4)The top steel band and curved plate of fixing end reinforcement, support end reinforcement and stretching end reinforcement pass through Bolt is fixedly connected, and the bending length of top steel band takes 1/4 member height;
5)Slotted eye on each sidepiece anchorage of fixing end reinforcement, support end reinforcement and stretching end reinforcement or Circular hole is correspondingly arranged in favor of subsequently passing through steel wire.
In use, carrying out bottom surface compressor wire and side compressor wire tensioning, steel wire is set to pass through various pieces anchorage Slotted eye or circular hole and be strained and fixed in steel cord ends, complete timber structure enhancing work.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, it should all belong to the covering scope of the present invention.

Claims (9)

1. a kind of prestressing force intensifier of continued access timber structure, it is characterised in that including being set along continued access timber structure length direction Anchored end reinforcement, support end reinforcement and stretching end reinforcement, the anchored end reinforcement includes the anchored end at top Top steel band, steel band both sides are connected with anchored end curved plate at the top of the anchored end, the anchored end curved plate inwall with Wooden piece outer surface to be reinforced fits, and the anchored end curved plate both sides are fixed with anchored end sidepiece anchorage, the anchoring End curved plate bottom is provided with anchored end bottom anchorage, and the anchored end sidepiece anchorage and anchored end bottom anchorage outer are provided with groove Hole, gap is left between the anchored end curved plate lower end of both sides and is provided with adpting flange.
2. the prestressing force intensifier of continued access timber structure according to claim 1, it is characterised in that the support end enhancing Part includes steel band at the top of the support end at top, and steel band both sides are connected with support end curved plate, the branch at the top of the support end Support end curved plate inwall fits with wooden piece outer surface to be reinforced, and the support end curved plate both sides are fixed with support end Sidepiece anchorage, the support end curved plate bottom are provided with support end bottom anchorage, the support end sidepiece anchorage and support end Bottom anchorage outer is provided with slotted eye, and gap is left between the curved plate lower end of supported on both sides end and is provided with adpting flange.
3. the prestressing force intensifier of continued access timber structure according to claim 2, it is characterised in that the stretching end enhancing Steel band at the top of the stretching end of part including top, steel band both sides are connected with stretching end curved plate at the top of the stretching end, described Pull end curved plate inwall fits with wooden piece outer surface to be reinforced, and the stretching end curved plate both sides are fixed with stretching end Sidepiece anchorage, the stretching end curved plate bottom are provided with stretching end bottom anchorage, the stretching end sidepiece anchorage and stretching end Circular hole is provided with the middle part of the anchorage of bottom, gap is left between the both sides stretching end curved plate lower end and is provided with adpting flange.
A kind of 4. prestressing force intensifier of continued access timber structure according to claim 3, it is characterised in that the support end Reinforcement is provided with two or more.
A kind of 5. prestressing force intensifier of continued access timber structure according to claim 1, it is characterised in that the connection method Orchid includes symmetrically arranged two flanged plates, clamping screw on two flanged plates.
A kind of 6. prestressing force intensifier of continued access timber structure according to claim 1, it is characterised in that the anchored end Top steel band and steel band and tensioning at the top of steel band at the top of anchored end curved plate, support end and support end curved plate, stretching end End curved plate by through bolt be fixedly connected.
A kind of 7. prestressing force intensifier of continued access timber structure according to claim 1, it is characterised in that the anchored end Reinforcement, support end reinforcement and stretching end reinforcement periphery are provided with antirust coat.
A kind of 8. prestressing force intensifier of continued access timber structure according to claim 1, it is characterised in that the anchored end The slotted eye of sidepiece anchorage is set with the slotted eye position correspondence of support end sidepiece anchorage, the slotted eye and support end of anchored end bottom anchorage The slotted eye position correspondence of bottom anchorage is set.
9. a kind of manufacture method for the prestressing force intensifier for manufacturing continued access timber structure as claimed in claim 4, including it is following Step:
1)According to wood structures dimensional conditions, anchored end reinforcement, support end reinforcement and stretching end reinforcement institute are determined In position;
2)Determine the wood structures section of anchored end reinforcement, support end reinforcement and stretching end reinforcement position Size, the top steel band of various pieces and the size of curved plate are determined according to the situation of size, are allowed to and place timber structure structure The periphery of part is fitted, and sidepiece anchorage, bottom anchorage and flanged plate are welded on the curved plate of each increase part;
3)Spacing is 15~20mm between the flanged plate of anchored end reinforcement, support end reinforcement and stretching end reinforcement;
4)The top steel band and curved plate of anchored end reinforcement, support end reinforcement and stretching end reinforcement pass through bolt It is fixedly connected, and the bending length of top steel band takes 1/4 member height;
5)Slotted eye or circular hole on each sidepiece anchorage of anchored end reinforcement, support end reinforcement and stretching end reinforcement It is correspondingly arranged in favor of subsequently passing through steel wire.
CN201610086975.XA 2016-02-16 2016-02-16 The prestressing force intensifier and its manufacture method of a kind of continued access timber structure Active CN105525766B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

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