CN105525763B - A kind of beam reinforcement means - Google Patents
A kind of beam reinforcement means Download PDFInfo
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- CN105525763B CN105525763B CN201510898439.5A CN201510898439A CN105525763B CN 105525763 B CN105525763 B CN 105525763B CN 201510898439 A CN201510898439 A CN 201510898439A CN 105525763 B CN105525763 B CN 105525763B
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Working Measures On Existing Buildindgs (AREA)
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Abstract
The invention proposes a kind of beam reinforcement means, belong to building recovery technique field.The beam reinforcement means selects the core material for setting core method reinforcement；The core material is reinforced, beam is carried out using the core material again after reinforcing to set the reinforcing of core method.Core material used by the opposed core method of the present invention is further reinforced, and is increased a possibility that bearing capacity of core material is closer to former joist support loading capability, is expanded the elastic range of material, and Materials with High Strength is more fully utilized, and plays material property；Ultimate bearing capacity is improved, malformation is reduced；The appearance for delaying core material tensile region timber crack, improves ductility；Enhance the rigidity of steel concrete beam.Thus, beam reinforcement means of the present invention enables to core material to be restored to the mechanical performance index of former beam as far as possible under the premise of the extraneous adornment for meeting structural elements is not destroyed and influenced.
Description
Technical field
The invention belongs to build recovery technique field, it is related to the reinforcement means of a kind of reinforcement means, especially beam.
Background technique
The Chinese ancient architecture overwhelming majority is under the jurisdiction of timber buildings, these ancient buildings are white due to being exposed to the sun and rain for a long time
Ant moth erosion infringement, the safety of component surface corrosion and ageing, building are reducing year by year.The reinforcing of historic building fire prevention is repaired at present
Multiple is typically all to carry out grout filling using the whole beam of replacement, or to hole, crack.These methods improve to a certain extent
The safety of ancient building, disadvantage is that need to unload the beam column of building before replacement beam column, there are security risk,
And speed of application is slow, cost is high.In addition there are notable difference, having violated has text for the appearance of component and original part after replacing
The principle of price value ancient building " restoring the old as the old ".
The corrosion of timber buildings central sill, a tree, used in making timber for boats component occurs mainly in both ends and the upper position of component, and close to courtyard
Even more serious, the especially some ancestral halls, mansion government office in feudal China, mausoleum that the beam of He Men, Lang Chu are generally destroyed than the beam of building interior
The Hui Style Architectures such as space, long neglected and in disrepair, cornice position can mostly have phenomena such as roof leaking, leak, lead to beam outwardly sound, but marrow
Center portion divides a kind of special damage -form in the case where having rotted, and this phenomenon is also more universal.
For the method and technology of wood beam reinforcing reparation, there is a large amount of theoretical and analysis of experiments both at home and abroad, but be substantially all
It is directly to paste the reinforcing modes such as steel, cloth material and embedding rib on the surface of former beam, the purpose of reinforcing is to improve and be destroyed examination
The bearing capacity or rigidity of part are the reinforcement techniques of main target, and the mode of consolidation process be it is unidirectional, irreversible, can not two
Secondary reinforcing, and it is larger to the appearance effects of wooden frame.A large amount of literature research is it was demonstrated that directly paste steel on wooden frame component
The mechanical performance index of wooden frame can be improved in the reinforcing modes such as material, cloth material and embedding rib, but these reinforcing modes are substantially one
Secondary property, do not have substitutability, is also not easy second consolidation.These disadvantages are for the Gu with historic significance and antique value
It is a fatal disadvantage for building.
Summary of the invention
The purpose of the present invention is to provide a kind of easy wood for carrying out second consolidation and capableing of effective protection facade
Beam reinforcement means.
In order to achieve the above object, solution of the invention is:
A kind of beam reinforcement means selects the core material for setting core method reinforcement；The core material is reinforced, after reinforcing again
Beam is carried out using the core material to set the reinforcing of core method.
It is described to core material carry out reinforce include: to be reinforced in the bottom of core material or side.
The core material is reinforced using CFRP plate.
CFRP plate is affixed on to the bottom or side of the core material.
Alternatively, in the bottom of core material implantation muscle to be reinforced to the core material.
The muscle is CFRP tendons or reinforcing bar.
Alternatively, using core material described in galvanized steel plain sheet and CFRP plate composite consolidation.
CFRP plate is affixed on to the bottom or side of the core material；Galvanized steel plain sheet is affixed on to the top or side of the core material
Portion.
Alternatively, being reinforced using two blocks of CFRP plates to the core material.
Two blocks of CFRP plates are affixed on the top and bottom of the core material respectively.
By adopting the above scheme, the beneficial effects of the present invention are: beam reinforcement means of the present invention can be taken at core material bottom
CFRP cloth, CFRP plate are pasted by portion, and the methods of implantation reinforcing bar, CFRP tendons reinforce core material, the core material after reusing the reinforcing
Beam is reinforced with setting core method.For reinforcing Restoration Techniques compared to traditional wooden frame component, sets core method and reinforce with following excellent
Point: (1) easy for construction；(2) delay timber crack occurs；(3) ductility of wooden frame is improved；(4) Materials with High Strength is made full use of；(5)
Influence of the defects of the weakening knaur, worm hole to timber tensile region；(6) bearing capacity and normal condition service performance are improved；(7) it protects
Protect historical relic initial surface colored drawing；(8) reinforcement technique with substitutability, replaceability.And opposed core method is adopted in the present invention
Timber is further reinforced, and is increased a possibility that bearing capacity of core material is closer to former joist support loading capability, is expanded material
The elastic range of material more fully utilizes Materials with High Strength, plays material property；Ultimate bearing capacity is improved, structure is reduced
Deformation；The appearance for delaying core material tensile region timber crack, improves ductility；Enhance the rigidity of steel concrete beam.To sum up institute
It states, beam reinforcement means of the present invention enables under the premise of the extraneous adornment for meeting structural elements is not destroyed and influenced
Core material is restored to the mechanical performance index of former beam as far as possible.
Detailed description of the invention
Fig. 1 a is the schematic diagram of the core material after being reinforced in first embodiment of the invention using CFRP plate；
Fig. 1 b is the schematic diagram of first embodiment of the invention central sill shell；
Fig. 1 c is the schematic diagram of the beam after being reinforced using first embodiment of the invention central sill reinforcement means；
Fig. 2 a is the schematic diagram of the core material after being reinforced in second embodiment of the invention using bar planting mode；
Fig. 2 b is the schematic diagram of second embodiment of the invention central sill shell；
Fig. 2 c is the schematic diagram of the beam after being reinforced using second embodiment of the invention central sill reinforcement means；
Fig. 3 a is in third embodiment of the invention using the schematic diagram of the core material after galvanized steel plain sheet and CFRP plate composite consolidation；
Fig. 3 b is the schematic diagram of third embodiment of the invention central sill shell；
Fig. 3 c is the schematic diagram of the beam after being reinforced using third embodiment of the invention central sill reinforcement means；
Fig. 4 a is the schematic diagram of the core material after being reinforced in fourth embodiment of the invention using the double muscle of CFRP plate；
Fig. 4 b is the schematic diagram of fourth embodiment of the invention central sill shell；
Fig. 4 c is the schematic diagram of the beam after being reinforced using fourth embodiment of the invention central sill reinforcement means.
In attached drawing: 1, core material；2, beam shell；3, CFRP plate；4, muscle；5, core material；6, beam shell；7, galvanized steel plain sheet；8,
CFRP plate；9, core material；10, beam shell；11, the first CFRP plate；12, the 2nd CFRP plate；13, core material；14, beam shell.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
The damage -form for the wooden frame mentioned in technology based on the above background, using set core method reinforcement technology to ancient building into
It is a kind of suitable method that row, which is repaired,.The cross sectional shape of beam in ancient building is mostly round or similar round, this section form
Also advantage is provided to set the implementation of core method reinforcement technology.Set the bearing capacity that core method reinforcement technology is built upon core material
It can meet on the load exposure basis of former beam with normal usage, however single core be set using implantation core material
Method reinforcing mode is not able to satisfy the requirement of component safety and applicability often.The present invention considers the mechanical property of core material
It is not able to satisfy the situation of requirement, takes and sets core method reinforcement technology to what core material was further reinforced, to propose one kind
The beam reinforcement means combined is reinforced based on core method and core material is set.The beam reinforcement means first reinforces core material, then adopts
Beam is reinforced with the core material after the reinforcing, core material is in the tensile region of beam.
In first embodiment, which uses the opposed core method of CFRP (carbon fibre reinforced composite) plate 3 first
Used core material 1 is reinforced, and CFRP plate 3 is attached to bottom or the side edge of core material 1；Later, the core that the reinforcing is good
Material 1 is placed in the tensile region of beam shell 2.Fig. 1 a show the schematic diagram of the core material after reinforcing in the present embodiment using CFRP plate；
Fig. 1 b is beam shell to be reinforced, and wherein area of absence is the tensile region of beam；Fig. 1 c is after being reinforced using the method for this implementation
The structural schematic diagram of beam.
In second embodiment, which is placed in the bottom of core material 5 to core for CFRP plate or regular reinforcement 4 first
Material 5 is reinforced；Later, the good core material 5 of the reinforcing is placed in the tensile region of beam shell 6.Fig. 2 a is to use in the present embodiment
Bar planting mode reinforce after core material schematic diagram；Fig. 2 b is beam shell to be reinforced in the present embodiment, and wherein area of absence is beam
Tensile region；Fig. 2 c is the structural schematic diagram of the beam after being reinforced using the method for the present embodiment.
In 3rd embodiment, core material is reinforced using the method for galvanized steel plain sheet and CFRP plate composite consolidation core material.This
In embodiment, galvanized steel plain sheet 7 is affixed on the top of core material 9 by beam reinforcement means first, and CFRP plate 8 is affixed on to the bottom of core material 9
Portion reinforces core material 9；Later, the good core material 9 of the reinforcing is placed in the tensile region of beam shell 10.Fig. 3 a is the present embodiment
The middle schematic diagram using the core material after galvanized steel plain sheet and CFRP plate composite consolidation；Fig. 3 b is outside beam to be reinforced in the present embodiment
Shell, wherein area of absence is the tensile region of beam；Fig. 3 c is the structural schematic diagram of the beam after being reinforced using the method for the present embodiment.This
In embodiment, galvanized steel plain sheet 7 is affixed on the top of core material 9；And in the present invention, the side of core material 9 can also be affixed on.This
In embodiment, CFRP plate 8 is affixed on the bottom of core material 9；And in the present invention, the side of core material 9 can also be affixed on.
In fourth embodiment, core material is reinforced using the method that the double muscle of two blocks of CFRP plates reinforce core material, this two pieces
CFRP plate is respectively the first CFRP plate and the 2nd CFRP plate.In the present embodiment, beam reinforcement means is attached by the first CFRP plate 11 first
It is attached to the top of core material 13, the 2nd CFRP plate 12 is affixed on to the bottom of core material 13, to be reinforced to core material 13；Later, will
The good core material 13 of the reinforcing is placed in the tensile region of beam shell 14.Fig. 4 a is to be reinforced in the present embodiment using the double muscle of two blocks of CFRP plates
The schematic diagram of core material afterwards；Fig. 4 b is beam shell to be reinforced in the present embodiment, and wherein area of absence is the tensile region of beam；Fig. 4 c
It is the structural schematic diagram of the beam after being reinforced using the method for the present embodiment.In the present embodiment, the first CFRP plate 11 is affixed on core material
13 top；And in the present invention, the side of core material 13 can also be affixed on.In the present embodiment, the 2nd CFRP plate 12 is affixed
In the bottom of core material 13；And in the present invention, the side of core material 13 can also be affixed on.
Beam reinforcement means of the present invention, which can be taken, pastes CFRP cloth, CFRP plate, implantation reinforcing bar, CFRP tendons etc. in core material bottom
Method reinforces core material, and the core material after reusing the reinforcing reinforces beam with setting core method.Compared to traditional wooden frame component
Reinforcing Restoration Techniques for, set core method reinforcing have the advantages that (1) is easy for construction；(2) delay timber crack occurs；(3)
Improve the ductility of wooden frame；(4) Materials with High Strength is made full use of；(5) influence of the defects of the weakening knaur, worm hole to timber tensile region；
(6) bearing capacity and normal condition service performance are improved；(7) historical relic initial surface colored drawing is protected；(8) have substitutability, can
The reinforcement technique of replaceability.And timber used by opposed core method is further reinforced in the present invention, increases the carrying energy of core material
A possibility that power is closer to former joist support loading capability, expands the elastic range of material, more fully utilizes Materials with High Strength, hair
Wave material property；Ultimate bearing capacity is improved, malformation is reduced；The appearance for delaying core material tensile region timber crack, mentions
High ductility；Enhance the rigidity of steel concrete beam.In conclusion beam reinforcement means of the present invention is in the outside for meeting structural elements
Under the premise of decoration is not destroyed and influenced, core material is enabled to be restored to the mechanical performance index of former beam as far as possible.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (3)
1. a kind of beam reinforcement means, it is characterised in that: select the core material for setting core method reinforcement；The core material is added
Gu carrying out setting the reinforcing of core method to beam using the core material again after reinforcing；It is described to core material carry out reinforce include: in the bottom of core material
It is reinforced using CFRP plate, also the side of core material or top is reinforced.
2. beam reinforcement means according to claim 1, it is characterised in that: reinforced using CFRP plate to the core material；
CFRP plate is affixed on to the side of the core material.
3. beam reinforcement means according to claim 1, it is characterised in that: added using two blocks of CFRP plates to the core material
Gu two blocks of CFRP plates is made to be affixed on the top and bottom of the core material respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510898439.5A CN105525763B (en) | 2015-12-08 | 2015-12-08 | A kind of beam reinforcement means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510898439.5A CN105525763B (en) | 2015-12-08 | 2015-12-08 | A kind of beam reinforcement means |
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| CN105525763A CN105525763A (en) | 2016-04-27 |
| CN105525763B true CN105525763B (en) | 2019-01-25 |
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| CN201510898439.5A Active CN105525763B (en) | 2015-12-08 | 2015-12-08 | A kind of beam reinforcement means |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117432240A (en) * | 2023-12-18 | 2024-01-23 | 华侨大学 | Repairing method of ancient building girder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8303664D0 (en) * | 1983-02-10 | 1983-03-16 | Rickards Timber Treatment Ltd | Improving structural value of timber beams |
| DE3709297A1 (en) * | 1986-03-25 | 1987-10-22 | Dick Klapwijk | METHOD FOR RESTORING A WOODEN CONSTRUCTION PART |
| CN101144336A (en) * | 2007-08-28 | 2008-03-19 | 上海市建筑科学研究院(集团)有限公司 | Method for repairing and reinforcing wood beam by carbon fibre bar |
| CN102127973A (en) * | 2010-12-02 | 2011-07-20 | 西安建筑科技大学 | Reinforcing method of beam for building |
| CN202000685U (en) * | 2010-08-13 | 2011-10-05 | 成都建筑工程集团总公司 | Historic building wooden beams and columns reinforced through embedded ribs |
| CN102242571A (en) * | 2011-05-04 | 2011-11-16 | 上海市建筑科学研究院(集团)有限公司 | Method for reinforcing wood beam by connecting steel plate through screws |
| CN204357147U (en) * | 2014-11-21 | 2015-05-27 | 华北水利水电大学 | The composite reinforcing structure of prestressed reinforced concrete construction flexural member |
| CN104763164A (en) * | 2015-04-30 | 2015-07-08 | 南京工业大学 | Self-tapping screw reinforcing structure and method for pressed rod piece of historic building wood structure roof truss with defects |
-
2015
- 2015-12-08 CN CN201510898439.5A patent/CN105525763B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8303664D0 (en) * | 1983-02-10 | 1983-03-16 | Rickards Timber Treatment Ltd | Improving structural value of timber beams |
| DE3709297A1 (en) * | 1986-03-25 | 1987-10-22 | Dick Klapwijk | METHOD FOR RESTORING A WOODEN CONSTRUCTION PART |
| CN101144336A (en) * | 2007-08-28 | 2008-03-19 | 上海市建筑科学研究院(集团)有限公司 | Method for repairing and reinforcing wood beam by carbon fibre bar |
| CN202000685U (en) * | 2010-08-13 | 2011-10-05 | 成都建筑工程集团总公司 | Historic building wooden beams and columns reinforced through embedded ribs |
| CN102127973A (en) * | 2010-12-02 | 2011-07-20 | 西安建筑科技大学 | Reinforcing method of beam for building |
| CN102242571A (en) * | 2011-05-04 | 2011-11-16 | 上海市建筑科学研究院(集团)有限公司 | Method for reinforcing wood beam by connecting steel plate through screws |
| CN204357147U (en) * | 2014-11-21 | 2015-05-27 | 华北水利水电大学 | The composite reinforcing structure of prestressed reinforced concrete construction flexural member |
| CN104763164A (en) * | 2015-04-30 | 2015-07-08 | 南京工业大学 | Self-tapping screw reinforcing structure and method for pressed rod piece of historic building wood structure roof truss with defects |
Non-Patent Citations (1)
| Title |
|---|
| 徽州古祠堂木构件加固修复方法研究;陈刚;《中国优秀硕士学位论文全文数据库工程科技II辑》;20131215(第12期);第67-70页，图5-23 |
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