CN111946082B - Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building - Google Patents
Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building Download PDFInfo
- Publication number
- CN111946082B CN111946082B CN202010749944.4A CN202010749944A CN111946082B CN 111946082 B CN111946082 B CN 111946082B CN 202010749944 A CN202010749944 A CN 202010749944A CN 111946082 B CN111946082 B CN 111946082B
- Authority
- CN
- China
- Prior art keywords
- bar
- tenon
- hole
- positioning hole
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- 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
-
- 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
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
Abstract
A method for reinforcing a beam-column mortise-tenon joint of an ancient wooden structure building comprises the following steps: the first bar wound with the fiber strips is embedded into the tenon at the end part of the wood beam, and then the second bar and the third bar are embedded between the wood beam and the first bar so as to fix the first bar, so that the reinforcing method of the beam-column tenon-and-mortise joint of the wood structure is simple, the structural appearance is slightly changed, and the original appearance of the ancient building is kept to the maximum extent; the structural integrity is good, and the bending resistance and the shearing resistance bearing capacity of the beam and column joints can be effectively improved; corrosion resistance and long service life; local reinforcement is adopted, pertinence is strong, the using amount of fiber strips is small, and cost is saved.
Description
Technical Field
The invention belongs to the field of wood structure reinforcement, and particularly relates to a method for reinforcing a beam-column mortise-tenon joint of an ancient wood structure building.
Background
China is a civilized ancient country, and up to now, more than 2000 historical towns still exist, and a large number of ancient buildings are stored in the towns. In ancient China, wood is used as a main building material, beautiful building configurations and corresponding building styles are created, and bright results are obtained, so that the wood is an important carrier of Chinese traditional culture. The ancient Chinese timber structure building has a unique structure system and is characterized in that beams and columns are connected in a mortise-tenon manner.
However, most of the existing ancient wooden buildings are built for a long time, due to the factors such as the degradation of the physical properties of the wood, the influence of natural environment, artificial damage and the like, the existing ancient wooden buildings generate different damage forms, and the joints of the beams and the columns are easy to be damaged by tenon pulling. The tenon is pulled out to reduce the effective stressed section area of the beam and column members, and the beam and column members are easy to be pulled, pressed, bent and sheared to damage, so that the structural integrity is influenced to a certain extent, and therefore reinforcement is needed. The traditional reinforcing method mainly comprises the steps of wrapping the beam and the column with flat steel along the cross section of the beam and the column, and fixing the flat steel on the beam and the column by iron nails or wooden nails; and angle steel or short wood columns are used for additionally supporting the part for pulling the tenon. Although the reinforcing methods can improve the bearing capacity of the node to a certain extent, the reinforcing methods have the problems of influencing the structural appearance, damaging wood members, easily corroding iron pieces, being not beneficial to maintenance and the like, so the reinforcing methods have certain limitations in application.
The fiber composite reinforced material (FRP) has the characteristics of light weight, high strength, high elastic modulus, corrosion resistance, easy construction and the like, and is widely applied to various reinforcement fields in recent years. The existing reinforcing method mainly wraps the FRP in a beam column area, the FRP reinforcing area is large, the ancient building appearance is greatly influenced, and the problem of stripping damage exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for reinforcing a beam-column mortise-tenon joint of an ancient timber structure building.
The invention adopts the following technical scheme:
a method for reinforcing a beam-column mortise-tenon joint of an ancient wooden structure building comprises the following steps: embedding a first bar wound with a fiber strip into a tenon at the end of a wood beam, and then embedding a second bar and a third bar between the wood beam and the first bar so as to fix the first bar, wherein the method comprises the following specific steps:
step one, arranging a fixing hole in the middle of a tenon at the end part of a wood beam;
winding fiber strips soaked with epoxy resin on the outer surface of the first bar, so that the first bar forms a first section which is not wound with the fiber strips and a second section which is connected with the first section and is wound with the fiber strips, the length of the second section is not less than the sum of the diameter of the wood column and 50mm, and the winding length of the fiber strips is greater than that of the second section;
step three, arranging a first positioning hole parallel to the width direction of the wood beam and a second positioning hole perpendicular to the width direction of the wood beam on the first section of the first bar, and arranging a first hole opposite to the first positioning hole and a second hole opposite to the second positioning hole on the wood beam;
embedding the first bar into the fixing hole, and enabling the second section of the first bar to be located at the mortise and tenon joint of the beam column;
fifthly, enabling the second bar to penetrate through the first hole and the first positioning hole, and enabling the third bar to penetrate through the second hole and the second positioning hole so as to fix the first bar;
sixthly, filling epoxy resin in a gap between the first bar and the fixing hole, a gap between the second bar and the first hole and the first positioning hole, and a gap between the third bar and the second hole and the second positioning hole;
and step seven, adhering the fiber strips exceeding the first bar on the outer surface of the wood column by using epoxy resin.
Preferably, the diameters of the first positioning hole and the second positioning hole are consistent.
Preferably, the distance between the first positioning hole and the second positioning hole is not less than 1.5 times of the diameter of the first positioning hole.
Preferably, the diameter of the first hole is 1/4-1/2 of the diameter of the first rod.
Preferably, the diameter of the first bar is 1/4-1/2 of the diameter of the wood beam.
Preferably, the fiber strip is a carbon fiber strip, an aramid fiber strip, a glass fiber strip or a basalt fiber strip.
Preferably, the second section of the first bar is provided with a winding groove arranged around the outer peripheral surface of the second section, and the depth of the winding groove is the winding thickness of the fiber strip.
Preferably, the length of the first section is not less than the length of the second section.
As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: firstly, the reinforcing method for the tenon-and-mortise joints of the beam column of the wood structure is simple, the structural appearance is slightly changed, and the original appearance of the ancient building is kept to the maximum extent; secondly, the structural integrity is good, and the bending resistance and the shearing resistance bearing capacity of the beam and column joints can be effectively improved; thirdly, corrosion resistance and long service life are achieved; fourthly, local reinforcement is adopted, pertinence is strong, the using amount of fiber strips is small, and cost is saved; fifthly, the second bar and the third bar can position the first bar, so that the stability of reinforcement is ensured; sixthly, epoxy resin is filled in gaps between the first bar and the fixing holes, gaps between the second bar and the first hole and between the second bar and the second hole and between the third bar and the second positioning hole, so that the first bar, the second bar and the third bar are firmly bonded with the wood beam and the wood column, and the bending resistance and the shearing resistance of the beam and column joints are effectively improved.
Drawings
FIG. 1 is a schematic diagram of a method for reinforcing a tenon-and-mortise joint of a beam column;
FIG. 2 is a schematic connection diagram of a beam-column mortise-tenon joint;
FIG. 3 is a first schematic structural diagram of a first bar;
FIG. 4 is a second schematic structural view of a second bar;
FIG. 5 is an enlarged view taken at A in FIG. 1;
in the figure, 1-wood beam, 2-wood column, 3-first bar, 4-second bar, 5-third bar, 6-epoxy resin, 11-tenon, 12-fixing hole, 13-first hole, 14-second hole, 31-first section, 311-first positioning hole, 312-second positioning hole, 32-second section, 321-winding groove and 33-fiber strip.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 5, a method for reinforcing a beam-column mortise-tenon joint of an ancient timber structure comprises the following steps: embedding a first bar 3 wound with a fiber strip 33 into a tenon 11 at the end of a wood beam, and then embedding a second bar 4 and a third bar 5 between the wood beam 1 and the first bar 3 to fix the first bar 3, which comprises the following specific steps:
selecting dry wood of the same tree species as the original component wood beam 1 and the original component wood column 2, and selecting the wood with the strength grade not lower than that of the wood beam 1 and the wood and the performance similar to that of the wood as a first bar 3, a second bar 4 and a third bar 5 when the wood is difficult;
step two, arranging a fixing hole 12 in the middle of a tenon 11 at the end part of the wood beam, wherein the length of the fixing hole 12 is consistent with that of the first bar 3;
winding fiber strips 33 soaked with epoxy resin on the outer surfaces of the first bars 3, so that the first bars form a first section 31 without winding the fiber strips 33 and a second section 32 connected with the first section 31 and wound with the fiber strips 33, the length of the second section 32 is not less than the sum of the diameter of the wood column 2 and 50mm, and the winding length of the fiber strips 33 is greater than that of the second section 32;
fourthly, a first positioning hole 311 parallel to the beam width direction of the wood beam 1 and a second positioning hole 312 perpendicular to the beam width direction of the wood beam 1 are formed in the first section 31 of the first bar 3, and a first hole 13 opposite to the first positioning hole 311 and a second hole 14 opposite to the second positioning hole 312 are formed in the wood beam 1;
step five, embedding the first bar 3 into the fixing hole 12, and enabling the second section 32 of the first bar 3 to be located at the mortise and tenon joint of the beam column;
step six, the second bar 4 passes through the first hole 13 and the first positioning hole 311, and the third bar 5 passes through the second hole 14 and the second positioning hole 312 to fix the first bar 3;
step seven, filling epoxy resin 6 in gaps between the first bar 3 and the fixing hole 12, gaps between the second bar 4 and the first hole 13 and the first positioning hole 311, and gaps between the third bar 5 and the second hole 14 and the second positioning hole 312;
eighthly, cutting off the parts of the second bar 4 and the third bar 5, which exceed the wood beam 1, and polishing the surfaces to be flat;
and step nine, scattering the fiber strips 33 exceeding the first bars 3 in a circular sector, and adhering the fiber strips to the outer surface of the wood column 2 by using epoxy resin.
Specifically, the length of the first section 31 is not less than the length of the second section 32, the second section 32 of the first bar 3 is provided with a winding groove 321 disposed around the outer circumferential surface of the second section 32, and the depth of the winding groove 321 is the winding thickness of the fiber strip 33, so that the surface of the fiber strip 33 is flush with the surface of the first section 31.
The diameters of the first positioning hole 311 and the second positioning hole 312 are the same, the diameter of the first hole 13 is 1/4-1/2 of the diameter of the first bar 3, and the distance between the first positioning hole 311 and the second positioning hole 312 is not less than 1.5 times of the diameter of the first positioning hole 311.
The diameter of the first bar 3 is 1/4-1/2 of the diameter of the wood beam 1.
The fiber strips 33 can be selected from carbon fiber strips, aramid fiber strips, glass fiber strips or basalt fiber strips according to the requirements of field use.
With the reinforcing method, the following advantages are achieved: firstly, the reinforcing method for the tenon-and-mortise joints of the beam column of the wood structure is simple, the structural appearance is slightly changed, and the original appearance of the ancient building is kept to the maximum extent; secondly, the structural integrity is good, and the bending resistance and the shearing resistance bearing capacity of the beam and column joints can be effectively improved; thirdly, corrosion resistance and long service life are achieved; fourthly, local reinforcement is adopted, pertinence is strong, the consumption of the fiber strips 33 is low, and cost is saved; fifthly, the second bar 4 and the third bar 5 can position the first bar 3, so that the stability of reinforcement is ensured; sixthly, the gaps between the first bar 3 and the fixing hole 12, the gaps between the second bar 4 and the first hole 13 and the first positioning hole 311, and the gaps between the third bar 5 and the second hole 14 and the second positioning hole 312 are filled with epoxy resin 6, so that the first bar 3, the second bar 4 and the third bar 5 are firmly bonded with the wood beam 1 and the wood column 2, and the bending resistance and the shearing resistance of the beam and column joints are effectively improved; seventh, the length of the second section 32 of the first bar is not less than the sum of the diameter of the wood column 2 and 50mm, and the winding length of the fiber strip 33 is greater than the length of the second section 32, so that the part of the fiber strip 22 which is greater than the length of the second section 32 is fixed on the outer surface of the wood column 2 through epoxy resin, the stability of the wood structure beam-column tenon-and-mortise joint connection structure is ensured, and the bending resistance and the shearing resistance of the beam-column joint are effectively improved; eighth, a portion of the fiber strips 33, which is more than the length of the second section 32, is circularly fanned and attached to the outer surface of the wood column 2 to increase the contact area of the fiber strips 33 with the outer surface of the wood column 2.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (8)
1. A method for reinforcing a beam-column mortise-tenon joint of an ancient wooden structure building is characterized by comprising the following steps of: the method comprises the following steps: embedding a first bar wound with a fiber strip into a tenon at the end of a wood beam, and then embedding a second bar and a third bar between the wood beam and the first bar so as to fix the first bar, wherein the method comprises the following specific steps:
step one, arranging a fixing hole in the middle of a tenon at the end part of a wood beam;
winding fiber strips soaked with epoxy resin on the outer surface of the first bar, so that the first bar forms a first section which is not wound with the fiber strips and a second section which is connected with the first section and is wound with the fiber strips, the length of the second section is not less than the sum of the diameter of the wood column and 50mm, and the winding length of the fiber strips is greater than that of the second section;
step three, arranging a first positioning hole parallel to the width direction of the wood beam and a second positioning hole perpendicular to the width direction of the wood beam on the first section of the first bar, and arranging a first hole opposite to the first positioning hole and a second hole opposite to the second positioning hole on the wood beam;
embedding the first bar into the fixing hole, and enabling the second section of the first bar to be located at the mortise and tenon joint of the beam column;
fifthly, enabling the second bar to penetrate through the first hole and the first positioning hole, and enabling the third bar to penetrate through the second hole and the second positioning hole so as to fix the first bar;
sixthly, filling epoxy resin in a gap between the first bar and the fixing hole, a gap between the second bar and the first hole and the first positioning hole, and a gap between the third bar and the second hole and the second positioning hole;
and step seven, adhering the fiber strips exceeding the first bar on the outer surface of the wood column by using epoxy resin.
2. The method for reinforcing the tenon-and-mortise joints of the beams and the columns of the timber historic building according to claim 1, wherein the method comprises the following steps: the diameters of the first positioning hole and the second positioning hole are consistent.
3. The method for reinforcing the tenon-and-mortise joints of the beams and the columns of the timber historic building according to claim 2, wherein the method comprises the following steps: the distance between the first positioning hole and the second positioning hole is not less than 1.5 times of the diameter of the first positioning hole.
4. The method for reinforcing the tenon-and-mortise joints of the beams and the columns of the timber historic building according to claim 2, wherein the method comprises the following steps: the diameter of the first hole is 1/4-1/2 of the diameter of the first bar.
5. The method for reinforcing the mortise-tenon joints of the beams and the columns of the timber structure ancient building according to claim 1, 2, 3 or 4, wherein the method comprises the following steps: the diameter of the first bar is 1/4-1/2 of the diameter of the wood beam.
6. The method for reinforcing the mortise-tenon joints of the beams and the columns of the timber structure ancient building according to claim 1, 2, 3 or 4, wherein the method comprises the following steps: the fiber strip is a carbon fiber strip, an aramid fiber strip, a glass fiber strip or a basalt fiber strip.
7. The method for reinforcing the mortise-tenon joints of the beams and the columns of the timber structure ancient building according to claim 1, 2, 3 or 4, wherein the method comprises the following steps: the second section of the first bar is provided with a winding groove surrounding the outer peripheral surface of the second section, and the depth of the winding groove is the winding thickness of the fiber strip.
8. The method for reinforcing the mortise-tenon joints of the beams and the columns of the timber structure ancient building according to claim 1, 2, 3 or 4, wherein the method comprises the following steps: the length of the first section is not less than the length of the second section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749944.4A CN111946082B (en) | 2020-07-30 | 2020-07-30 | Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749944.4A CN111946082B (en) | 2020-07-30 | 2020-07-30 | Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111946082A CN111946082A (en) | 2020-11-17 |
| CN111946082B true CN111946082B (en) | 2021-11-23 |
Family
ID=73337992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010749944.4A Active CN111946082B (en) | 2020-07-30 | 2020-07-30 | Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111946082B (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375381A (en) * | 1993-02-26 | 1994-12-27 | Heartland Industries, Inc. | Building kit |
| CN1252476A (en) * | 1998-06-03 | 2000-05-10 | 王志林 | Building component with steel structure |
| DE10029343C2 (en) * | 2000-06-20 | 2003-01-30 | Induo Ges Zur Verwertung Von S | Connection for firmly connecting at least two elements |
| JP2003056064A (en) * | 2001-08-10 | 2003-02-26 | Hideyuki Ose | Wood connector for construction |
| DE10218597C2 (en) * | 2002-04-25 | 2003-07-31 | Heike Wallner Automation Gmbh | System, method and device for the production of a structure or framework |
| CN103669897A (en) * | 2013-10-24 | 2014-03-26 | 北京工业大学 | Hidden type reinforcing node of side span node of wood structure traditional architecture and preparation method of hidden type reinforcing node |
| CN103866868B (en) * | 2014-02-21 | 2016-03-02 | 同济大学 | A kind of beam column steel loop hinged joint |
| CN103953123A (en) * | 2014-05-14 | 2014-07-30 | 天津城建大学 | H-shaped steel frame node with partially restricted beam end and construction method thereof |
| CN104499579B (en) * | 2014-12-26 | 2017-03-08 | 南京工业大学 | Board plug type band enhancement mode timber structure Tenon node |
| CN105019561B (en) * | 2015-07-30 | 2017-05-03 | 中国人民解放军理工大学 | Meshing connector used for connecting composite materials |
| CN206267553U (en) * | 2016-11-08 | 2017-06-20 | 安徽建筑大学 | A kind of ancient building pin dovetail pier connects ruggedized construction |
| CN106703194B (en) * | 2016-12-21 | 2019-02-01 | 西安建筑科技大学 | A kind of beam column semi-rigid connection structure based on raw bamboo skeleton |
| CN207672751U (en) * | 2017-12-08 | 2018-07-31 | 肇庆科达轻钢房屋系统有限公司 | One kind being conveniently detached formula steel construction |
| CN108547412A (en) * | 2018-06-15 | 2018-09-18 | 上海市建筑科学研究院 | A kind of imitative bamboo Recombined bamboo column and preparation method thereof |
| CN210127780U (en) * | 2019-05-28 | 2020-03-06 | 江苏金丰木业有限公司 | High strength timber board structure |
| CN110185156A (en) * | 2019-06-03 | 2019-08-30 | 中国林业科学研究院林业新技术研究所 | A kind of Tenon node enhancement device and its application method |
-
2020
- 2020-07-30 CN CN202010749944.4A patent/CN111946082B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111946082A (en) | 2020-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422576B (en) | A kind of reinforcing of wooden construction Tenon node and energy-consumption shock-absorption device | |
| CN107217866B (en) | Wood structure mortise and tenon joint of device shape memory alloy wire | |
| CN102936941B (en) | Composite pipe concrete composite structure | |
| KR101023424B1 (en) | Curved device for frp rebars and construction method using the same | |
| CN1936206A (en) | Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure | |
| CN102392541A (en) | Method for reinforcing concrete column by utilizing PVC-FRP (Poly Vinyl Chloride-Fiberglass Reinforced Plastic) pipe | |
| CN107143188B (en) | A kind of Gu Wood construction assembled energy consumption reinforcing member | |
| CN103422682A (en) | Self-rearranging mortise and tenon joint | |
| CN103669897A (en) | Hidden type reinforcing node of side span node of wood structure traditional architecture and preparation method of hidden type reinforcing node | |
| CN202073109U (en) | Post tensioned prestressing cylinder infrastructure | |
| CN111946082B (en) | Method for reinforcing beam-column mortise-tenon joints of wooden-structure ancient building | |
| CN201695573U (en) | Novel fiber-reinforced plastic (FRP)-prestressed concrete prisms (PCPs) composite bar concrete beam | |
| CN215889446U (en) | Ancient building timber structure tenon fourth of twelve earthly branches node reinforced structure | |
| CN212927131U (en) | Wood structure ancient building beam column node reinforced structure | |
| CN105401695A (en) | Novel composite FRP bar | |
| CN107869254A (en) | A kind of method of bamboo wood enhancing round log flexural member | |
| CN213063039U (en) | Ancient building timber pillar palm tenon mound connects reinforced structure | |
| CN204081257U (en) | FRP muscle fiber high-strength concrete beam component | |
| CN104806031A (en) | Wood structure reinforcement construction method | |
| CN203441123U (en) | Self-resetting mortise and tenon joint | |
| CN114809691A (en) | Hidden type wood beam column joint reinforcing device and reinforcing method thereof | |
| CN110528696A (en) | A kind of structural form of timber structure beam column Tenon joint strengthening | |
| CN1563622A (en) | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced | |
| CN207419847U (en) | A kind of bamboo wood armored concrete structure | |
| Stanila et al. | Timber Elements: Traditional and Modern Strengthening Techniques |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |