CN107620484B - Method for reinforcing wood column component - Google Patents
Method for reinforcing wood column component Download PDFInfo
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- CN107620484B CN107620484B CN201711051730.4A CN201711051730A CN107620484B CN 107620484 B CN107620484 B CN 107620484B CN 201711051730 A CN201711051730 A CN 201711051730A CN 107620484 B CN107620484 B CN 107620484B
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Abstract
A method for reinforcing a wood column member comprises the steps of arranging a filling material (2), an isolation layer (3), a bamboo reinforcing layer (4) and an outer protective layer (5) on the outer side of a wood column (1), reinforcing the wood column (1), winding the bamboo reinforcing layer (4) on the wood column (1) and injecting the filling material (2) through an inflatable air bag (6) in the reinforcing process, and the method comprises the steps of cleaning the surface of the wood column, winding the inflatable air bag, inflating the air bag, winding the isolation layer, winding the bamboo reinforcing layer, removing the inflatable air bag, injecting the filling material, brushing the outer protective layer and the like. The method solves the defects of the existing reinforcing technology for reinforcing the wood column member, improves the stress performance of the wood column member, has the characteristics of old repair and old repair, fully utilizes bamboo resources in China, is renewable in resources, and has low-carbon and environment-friendly technology and sustainable development.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to maintenance and reinforcement of buildings, and particularly relates to a method for reinforcing a wood column member.
Background
Most of the traditional buildings in China are wood buildings. The Chinese character stone carries the culture of thousands of years of China, carries the excellent tradition of China, and has extremely high historical, artistic and scientific values. The wood building is easy to be damaged by worms and decayed, and after hundreds of years or thousands of years of weather washing, many preserved wood buildings are seriously damaged, so that the durability of the structure is seriously affected, and the wood building is urgently required to be maintained and reinforced. The wood building is not possible to replace new materials in large areas in repair and reconstruction, and the method is especially suitable for oversized or rare wood species and cultural relics. Whereas conventional repair reinforcements typically use chemical methods to treat their components or replace severely damaged components. The method is time-consuming, labor-consuming and high in economic cost, and the original appearance of the cultural relics is destroyed to different degrees. If the adhesive steel plate is used for reinforcement, the strength and rigidity of the member can be improved, but the steel plate has the defects of heavy weight, easy corrosion, difficult forming and the like, and cannot be widely applied to the reinforcement of wood buildings.
With respect to the above structure, researchers are continuously developing new structural forms to try to overcome the disadvantages and shortcomings of the wood building. For example, the damaged wood columns are reinforced by adopting carbon fiber cloth, basalt fiber cloth or aramid fiber cloth, and the fiber cloth has the advantages of high geometric plasticity, light weight, easiness in cutting and forming and the like, so that the fiber cloth is very suitable for pasting the surface of a traditional wood building with an irregular section, and after being reinforced by basalt fiber cloth, the appearance of the wood building is not affected after the wood building is painted, and the additional weight is hardly increased, so that the fiber cloth is a preferred material in the wood building reinforcement. Although the method overcomes some disadvantages of wood construction, the fiber cloth used in the structure is fiber reinforced plastic with high energy consumption, products and waste materials are not recyclable, the method is not environment-friendly, and the manufacturing cost is high. And the fiber product consumes a great amount of precious petroleum resources, resulting in environmental pollution.
Disclosure of Invention
The invention aims to provide a method for reinforcing a wood column member, which aims to overcome the defects of the existing reinforcing technology of the wood column member, improves the stress performance of the wood column member, has the characteristics of old repair and old repair, fully utilizes bamboo resources in China, is renewable in resources, is low-carbon and environment-friendly, and promotes sustainable development.
The invention provides a method for reinforcing a wood column member, which is characterized by comprising the following steps of arranging a filling material, an isolation layer, a bamboo reinforcing layer and an outer protective layer on the outer side of a wood column to reinforce the wood column, and realizing winding of the bamboo reinforcing layer on the wood column and injection of the filling material by an inflatable air bag in the reinforcing process:
1) Cleaning the surface of a wood column: cleaning and polishing the surface of the wood column to expose a bright-colored part, and removing surface dust by adopting high-pressure air, alcohol and acetone solution;
2) Winding an inflatable air bag: winding the uninflated inflatable air bag on the outer surface of the wood column, wherein the winding direction is perpendicular to the axis direction of the wood column;
3) Inflating the air bag: after the winding of the inflatable air bag is completed, the inflatable air bag is inflated according to the design thickness to form the inflatable air bag with the thickness of 2-10 mm;
4) Winding an isolating layer: winding an impermeable and smooth isolation layer formed by adopting a bamboo fiber felt or a bamboo fiber non-woven fabric on the surface of the inflatable air bag, wherein the thickness of the isolation layer is 0.2-1 mm;
5) Winding a bamboo reinforcing layer: the coiled bamboo strips, bamboo fabrics or bamboo skins are impregnated with resin glue and are continuously and uniformly wound on the outer surface of the isolation layer, and the bamboo reinforcement layer is formed after solidification, wherein the bamboo fiber direction of the bamboo strips, bamboo fabrics or bamboo skins forms any angle with the axis direction of the wood column, and the single-layer thickness is 0.1-1.0 mm.
6) Dismantling the inflatable air bag: after the bamboo reinforcing layer is solidified and formed, releasing gas in the inflatable air bag, and pumping out the inflatable air bag;
7) Filling material: adjusting and fixing the position relation and the gap between the bamboo reinforcing layer and the wood column, plugging the upper port and the lower port, burying a grouting pipe, and injecting filling materials into the gap of the extracted inflatable air bag;
8) Coating an outer protective layer: the outer surface of the bamboo reinforcing layer is coated with an outer protective layer, and the wood columns, the filling material, the isolation layer, the bamboo reinforcing layer and the outer protective layer are mutually bonded and solidified to form a whole.
The winding layer number of the bamboo strips, bamboo fabrics or bamboo skins is not limited, and the directions of the bamboo fibers of each layer can be the same or different.
The filling material is one of resin glue, resin glue mortar, asphalt mortar, cement paste, cement mortar and cement concrete.
The outer protective layer is one of paint, coating, cement-based composite material and asphalt-based composite material.
The resin glue is one of epoxy resin, vinyl resin and polyurethane resin.
According to the method for reinforcing the wood column member, the number of winding layers of the bamboo strips, the bamboo fabrics or the bamboo veneers is not limited, and when the bamboo fiber direction of the bamboo strips is parallel to the axis direction of the wood column, the bamboo reinforcing layer directly participates in longitudinal compression and bending stress of the wood column member; when the bamboo fiber direction is perpendicular to the axis direction of the wood column, the bamboo reinforcing layer circumferentially constrains the wood column member, so that the bearing capacity of the wood column under compression and bending is indirectly improved; furthermore, the filling material enables the bamboo reinforcing layer and the wood column member to be bonded integrally and jointly work, the filling material can participate in the stress of the wood column member, and the compact injection of the filling material is ensured by the clearance space arranged by the inflatable air bag; the reinforcing material and the log column member work together by a plurality of measures, so that the bearing capacity of the log column member is improved. The invention fully utilizes the traditional material of China, namely bamboo, and the bamboo is taken as a renewable and environment-friendly resource, and has the characteristics of light weight, high strength, high elastic modulus and low price. The invention has the advantages that the invention has the following beneficial effects:
(1) The reinforcing material adopts bamboo strips, bamboo fabrics or bamboo veneers, has the characteristics of thin single-layer thickness, high flexibility and easy winding, and is easy to adapt to different sectional shapes and limited structural space of the wood column member to be reinforced.
(2) The bamboo has the characteristics of anisotropy, high strength in the axial direction of bamboo fibers and excellent mechanical properties, and the reinforced wood column member has flexible designability.
(3) In terms of the appearance design of the components, the bamboo and the wood have similar apparent characteristics, the overall aesthetic feeling is better, the appearance of the original structure is not changed, and the old original style of the old building wood structure can be realized.
Description of the drawings:
FIG. 1 is a schematic process flow diagram of a reinforced wood stud member;
FIG. 2 is a schematic view of the overall structure of a reinforced wood stud member;
FIG. 3 is a schematic cross-sectional view of a reinforced wood stud member surface wrapped inflatable bladder;
FIG. 4 is a schematic cross-sectional view of a reinforced wood stud member wrapped around an insulation layer;
FIG. 5 is a schematic cross-sectional view of a reinforcement wood stud member wrapped around a bamboo reinforcement;
FIG. 6 is a schematic cross-sectional view of the reinforced wood stud member with the inflatable bladder removed;
FIG. 7 is a schematic cross-sectional view of a reinforced wood stud member injected with a filler material;
FIG. 8 is a schematic cross-sectional view of a reinforced wood stud member coated with an outer protective layer;
in the attached drawings, 1 is a wood column, 2 is a filling material, 3 is an isolation layer, 4 is a reinforcing layer, 5 is an outer protective layer, and 6 is an inflatable air bag.
The specific embodiment is as follows:
the invention is described in further detail below with reference to the attached drawings and detailed description: the method for reinforcing the wood column member as shown in fig. 1 to 8 is characterized in that the wood column 1 is reinforced by arranging a filling material 2, an isolation layer 3, a bamboo reinforcing layer 4 and an outer protective layer 5 on the outer side of the wood column 1, and the bamboo reinforcing layer 4 is wound on the wood column 1 and the filling material 2 is injected by an inflatable air bag 6 in the reinforcing process, and the method is characterized by comprising the following steps:
1) Cleaning the surface of a wood column: cleaning and polishing the surface of the wood column 1 to expose a bright-colored part, and removing surface dust by adopting high-pressure air, alcohol and acetone solution;
2) Winding an inflatable air bag: winding the uninflated inflatable air bag 6 on the outer surface of the wooden column 1, wherein the winding direction is perpendicular to the axis direction of the wooden column;
3) Inflating the air bag: after the air bag 6 is wound, the air bag 6 is inflated according to the design thickness to form the air bag 6 with the thickness of 2 mm-10 mm;
4) Winding an isolating layer: winding an impermeable and smooth isolation layer 3 formed by adopting a bamboo fiber felt or a bamboo fiber non-woven fabric on the surface of the inflatable air bag 6, wherein the thickness of the isolation layer 3 is 0.2 mm-1 mm;
5) Winding a bamboo reinforcing layer: the coiled bamboo strips, bamboo fabrics or bamboo skins are impregnated with resin glue and are continuously and uniformly wound on the outer surface of the isolation layer 3, the bamboo reinforcement layer 4 is formed after solidification, the bamboo fiber direction of the bamboo strips, bamboo fabrics or bamboo skins forms any angle with the axis direction of the wood column 1, and the single-layer thickness is 0.1 mm-1.0 mm.
6) Dismantling the inflatable air bag: after the bamboo reinforcement layer 4 is solidified and formed, releasing the gas in the inflatable air bag 6, and pumping out the inflatable air bag 6;
7) Filling material: adjusting and fixing the position relation and the gap between the bamboo reinforcing layer 4 and the wood column 1, plugging the upper port and the lower port, burying a grouting pipe, and injecting a filling material 2 into a gap of the pumping inflatable air bag 6;
8) Coating an outer protective layer: the outer surface of the bamboo reinforcing layer 4 is coated with an outer protective layer 5, and the wood column 1, the filling material 2, the isolation layer 3, the bamboo reinforcing layer 4 and the outer protective layer 5 are mutually bonded and solidified to form a whole.
The winding layer number of the bamboo strips, bamboo fabrics or bamboo skins is not limited, and the directions of the bamboo fibers of each layer can be the same or different.
The filling material 2 is one of resin glue, resin glue mortar, asphalt mortar, cement paste, cement mortar and cement concrete.
The outer protective layer 5 is one of paint, coating, cement-based composite material and asphalt-based composite material.
The resin glue is one of epoxy resin, vinyl resin and polyurethane resin.
Compared with the existing method for reinforcing the wood column component, the method has the advantages that the stress performance of the wood column component is improved, the wood column component is repaired as old, the wood column component has the appearance similar to that of a log structure, bamboo resources in China are fully utilized, the bamboo is low-carbon and environment-friendly, the resources are renewable, and sustainable development is promoted.
Claims (4)
1. The method for reinforcing the wood column member is characterized by comprising the following steps of setting a filling material (2), an isolation layer (3), a bamboo reinforcing layer (4) and an outer protective layer (5) on the outer side of a wood column (1) to reinforce the wood column (1), and realizing winding of the bamboo reinforcing layer (4) on the wood column (1) and injection of the filling material (2) through an inflatable air bag (6) in the reinforcing process:
1) Cleaning the surface of a wood column: cleaning and polishing the surface of the wood column (1) to expose a bright-colored part, and removing surface dust by adopting high-pressure air, alcohol and acetone solution;
2) Winding an inflatable air bag: winding an uninflated inflatable air bag (6) on the outer surface of the wood column (1), wherein the winding direction is perpendicular to the axis direction of the wood column;
3) Inflating the air bag: after the air bag (6) is wound, the air bag (6) is inflated according to the design thickness to form the air bag (6) with the thickness of 2-10 mm;
4) Winding an isolating layer: winding an impermeable and smooth isolation layer (3) formed by adopting a bamboo fiber felt or a bamboo fiber non-woven fabric on the surface of the inflatable air bag (6), wherein the thickness of the isolation layer (3) is 0.2-1 mm;
5) Winding a bamboo reinforcing layer: the coiled bamboo strips, bamboo fabrics or bamboo barks are immersed in resin glue and are continuously and uniformly wound on the outer surface of the isolation layer (3), a bamboo reinforcing layer (4) is formed after solidification, the bamboo fiber direction of the bamboo strips, the bamboo fabrics or the bamboo barks and the axis direction of the wood column (1) form any angle, and the single-layer thickness is 0.1 mm-1.0 mm;
6) Dismantling the inflatable air bag: after the bamboo reinforcement layer (4) is solidified and formed, releasing gas in the inflatable air bag (6) and pumping out the inflatable air bag (6);
7) Filling material: adjusting and fixing the position relation and the gap between the bamboo reinforcing layer (4) and the wood column (1), plugging the upper port and the lower port, burying a grouting pipe, and injecting a filling material (2) into a gap of the pumping inflatable air bag (6);
8) Coating an outer protective layer: the outer surface of the bamboo reinforcing layer (4) is coated with an outer protective layer (5), and the wood column (1), the filling material (2), the isolation layer (3), the bamboo reinforcing layer (4) and the outer protective layer (5) are mutually bonded and solidified to form a whole.
2. A method of reinforcing a wood pole member according to claim 1 wherein the number of windings of the strips of bamboo, bamboo fabric or bamboo skin is not limited and the direction of the bamboo fibers of each layer may be the same or different.
3. A method of reinforcing a wood stud member according to claim 1, wherein the filler material (2) is one of a resin cement, a resin cement mortar, an asphalt mortar, a cement mortar, and a cement concrete.
4. A method of reinforcing a wood stud member according to claim 1 wherein the resin glue is one of epoxy, vinyl, polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051730.4A CN107620484B (en) | 2017-10-25 | 2017-10-25 | Method for reinforcing wood column component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051730.4A CN107620484B (en) | 2017-10-25 | 2017-10-25 | Method for reinforcing wood column component |
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| CN107620484A CN107620484A (en) | 2018-01-23 |
| CN107620484B true CN107620484B (en) | 2023-05-16 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3132427U (en) * | 2007-03-29 | 2007-06-07 | 輝北プレスウッド株式会社 | Wooden building wall reinforcement frame |
| CN100564772C (en) * | 2007-08-28 | 2009-12-02 | 上海市建筑科学研究院(集团)有限公司 | The method of repairing and reinforcing wood column by carbon fibre cloth |
| JP3148345U (en) * | 2008-11-26 | 2009-02-12 | フネン建材株式会社 | Fiber reinforced plastic strip for reinforcement of wooden parts |
| US20150059926A1 (en) * | 2013-09-04 | 2015-03-05 | Mohammad R. Ehsani | Wood column repair, reinforcement, and extension |
| CN204060019U (en) * | 2014-08-06 | 2014-12-31 | 上海市建筑科学研究院(集团)有限公司 | A kind of structure of pasting angle steel reinforced rectangle pin |
| CN204418514U (en) * | 2014-12-30 | 2015-06-24 | 南京林业大学 | A kind of biological material hollow original bamboo double-walled circular beam |
| CN106760216A (en) * | 2017-01-17 | 2017-05-31 | 南京林业大学 | A kind of bamboo wood multiple tube constrains steel reinforced concrete combining structure |
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