CN112832457A - A kind of built-in vertical steel plate reinforced reconstituted bamboo beam and preparation method thereof - Google Patents
A kind of built-in vertical steel plate reinforced reconstituted bamboo beam and preparation method thereof Download PDFInfo
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- CN112832457A CN112832457A CN202110193186.7A CN202110193186A CN112832457A CN 112832457 A CN112832457 A CN 112832457A CN 202110193186 A CN202110193186 A CN 202110193186A CN 112832457 A CN112832457 A CN 112832457A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
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Abstract
The invention relates to a built-in vertical steel plate reinforced recombined bamboo beam and a preparation method thereof. The steel plates are vertically arranged, so that the rigidity of the beam can be effectively improved, and the problem that the recombined bamboo beam is too large in bending deformation as a flexural member is solved. The through holes are uniformly arranged in the steel plate, but do not need to be arranged at a place close to the upper edge and the lower edge of the steel plate, the operation is convenient, meanwhile, the steel plate is provided with holes to enhance the bonding effect between the steel plate and the recombined bamboo, and on the premise of not influencing the rigidity, the purpose of saving steel is achieved, and the economic benefit is improved. The vertical steel plate is placed in the recombined bamboo beam to improve the rigidity of the recombined bamboo beam, the reinforcing mode is convenient and effective, meanwhile, the corrosion of the steel plate can be avoided, and the safety and the durability of the component are enhanced.
Description
Technical Field
The invention relates to the technical field of civil engineering bamboo wood, in particular to a built-in vertical steel plate reinforced recombined bamboo beam and a preparation method thereof.
Background
Compared with wood, bamboo has the advantages of greenness, naturalness, high strength, good toughness, short growth period and the like, is known as 'plant reinforcing steel bar' by structural engineers, and various structural engineering bamboo products such as recombined bamboo, glued bamboo and the like appear in recent years. The recombined bamboo is a new bamboo material formed by reorganizing and strengthening bamboo, namely, the bamboo is processed into long strip bamboo strips and bamboo filaments or crushed into bamboo filament bundles, the bamboo filaments are dipped in glue after being dried, the bamboo filaments are dried to reach the required moisture content, and then the bamboo filaments are laid in a mould and thermally cured at high temperature and high pressure to form the section. Compared with natural bamboo wood, the recombined bamboo has the advantages of environmental protection, high material utilization rate, high strength, less defects, various shapes and the like, is convenient for engineering application, and has very bright prospect in the fields of civil engineering and the like.
In the existing recombined bamboo beam, although the recombined bamboo inherits the characteristics of green and natural bamboo and good toughness, and successfully overcomes the defects of large discreteness of mechanical properties, easiness in being damaged by worms, poor durability and the like, as a main bending member in the structure, the elasticity modulus of the recombined bamboo beam is low, and when the recombined bamboo beam is designed, the rigidity is often controlled, and the strength of the recombined bamboo is not fully exerted. Therefore, when the bearing capacity of the recombined bamboo beam is checked, a larger section size is often needed to meet the rigidity requirement, which causes material waste and increases the weight of the structure.
Therefore, how to provide a recombined bamboo beam which meets the requirements of strength and rigidity is a problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
Therefore, the invention aims to provide a built-in vertical steel plate reinforced recombined bamboo beam, which solves the defects of the recombined bamboo beam in the prior art.
The invention provides a built-in vertical steel plate reinforced recombined bamboo beam, which comprises:
the recombined bamboo beam body is a cuboid and is formed by cementing a plurality of arranged bamboo fiber bundles;
the steel plate is a rectangular plate body, the volume of the steel plate is smaller than that of the recombined bamboo beam body, the steel plate is vertically embedded in the recombined bamboo beam body, and the steel plate is glued with the recombined bamboo beam body and is formed by hot pressing.
According to the technical scheme, compared with the prior art, the built-in vertical steel plate reinforced recombined bamboo beam is provided, the built-in vertical steel plate is directly formed by gluing and hot pressing in the recombined bamboo beam processing engineering, grooving is not needed, and secondary processing is not needed, so that the integrity of the beam can be ensured. The steel plates are vertically arranged, so that the rigidity of the beam can be effectively improved, and the problem that the recombined bamboo beam is too large in bending deformation as a flexural member is solved.
Furthermore, a plurality of through holes are formed in the steel plate and are perpendicular to the length direction of the steel plate, bamboo fibers are filled in the through holes, and the bamboo fibers are glued with the bamboo fiber bundles; the steel plate is provided with the through holes, so that the purpose of saving steel is achieved and the economic benefit is improved on the premise of little influence on the rigidity; the steel plate is uniformly arranged in the steel plate, but does not need to be arranged at a position close to the upper edge and the lower edge of the steel plate, so that the operation is convenient; meanwhile, the through holes are filled with bamboo fibers, and the bamboo fibers are glued with the bamboo fiber bundles of the recombined bamboo beam body, so that the bonding effect between the steel plate and the recombined bamboo can be enhanced, and the bonding capability of the steel plate and the recombined bamboo is improved. The vertical steel plate is placed in the recombined bamboo beam to improve the rigidity of the recombined bamboo beam, the reinforcing mode is convenient and effective, meanwhile, the corrosion of the steel plate can be avoided, and the safety and the durability of the component are enhanced.
The invention also aims to provide a preparation method of the built-in vertical steel plate reinforced recombined bamboo beam, which comprises the following steps: splitting the bamboo tube into strips, pressing the split bamboo strips into bamboo splits and binding the bamboo splits into bamboo fiber bundles, and then dipping the bamboo fiber bundles for later use; designing steel plates according to the using condition, and determining the positions and the number of the steel plates in the recombined bamboo beam body; winding the bamboo fiber on the steel plate, dipping the steel plate in glue and drying the steel plate for later use; and then, molding, namely vertically placing a steel plate in the mold, laying the impregnated bamboo fiber bundle, and performing hot press molding on the impregnated bamboo fiber bundle and the impregnated and dried steel plate.
According to the technical scheme, compared with the prior art, the method for manufacturing the built-in vertical steel plate reinforced recombined bamboo beam is characterized in that the steel plate is vertically arranged inside the recombined bamboo beam body, the bamboo fiber and glue water are subjected to hot press forming, the forming is convenient, grooving or secondary processing is not needed, the integrity of the beam body is ensured, the rigidity of the beam body is enhanced, and the problem that the recombined bamboo beam serving as a flexural member is too large in flexural deformation is solved. The steel plate is arranged in the recombined bamboo beam body, so that the corrosion of the steel plate can be avoided, and the safety and the durability of the component are enhanced.
Further, the steel sheet is the cuboid, has seted up a plurality of through-holes perpendicular to its length direction, and the through-hole intussuseption is filled with bamboo fibre. The steel plate is provided with the through holes, so that the purpose of saving steel is achieved and the economic benefit is improved on the premise of little influence on the rigidity; the steel plate is uniformly arranged in the steel plate, but does not need to be arranged at a position close to the upper edge and the lower edge of the steel plate, so that the operation is convenient; meanwhile, the through holes are filled with bamboo fibers, and the bamboo fibers are glued with the bamboo fiber bundles of the recombined bamboo beam body, so that the bonding effect between the steel plate and the recombined bamboo can be enhanced, and the bonding capability of the steel plate and the recombined bamboo is improved.
The function of the through hole in the invention is as follows: firstly, the use amount of steel is reduced, and the economic benefit is improved; and secondly, the bamboo fibers can be filled in the through holes, and the bamboo fibers and the bamboo fiber bundles of the recombined bamboo beam body are bonded through glue, so that the bonding effect is enhanced, and the bonding capability of the bamboo fibers and the bamboo fiber bundles is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a built-in vertical steel plate reinforced recombined bamboo beam provided by the invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 the accompanying drawings show a side view of FIG. 1;
FIG. 4 the accompanying drawings show a side view of another embodiment;
in the figure: 100-restructuring a bamboo beam body, 200-a steel plate and 201-a through hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the existing recombined bamboo beam, although the recombined bamboo inherits the characteristics of green and natural bamboo and good toughness, and successfully overcomes the defects of large discreteness of mechanical properties, easiness in being damaged by worms, poor durability and the like, as a main bending member in the structure, the elasticity modulus of the recombined bamboo beam is low, and when the recombined bamboo beam is designed, the rigidity is often controlled, and the strength of the recombined bamboo is not fully exerted. Therefore, when the bearing capacity of the recombined bamboo beam is checked, a larger section size is often needed to meet the rigidity requirement, which causes material waste and increases the weight of the structure.
Therefore, the built-in vertical steel plate reinforced recombined bamboo beam provided by the invention has the advantages that when recombined bamboo is processed, the steel plate is directly built in the recombined bamboo beam body, and the beam can be effectively ensured to be integrated without grooving and secondary processing. The recombined bamboo beam is reinforced by the built-in vertical steel plates, which is equivalent to increase of the effective width of the recombined bamboo, so that the elastic modulus of the recombined bamboo beam can be effectively improved, the section rigidity of the combined beam is increased, and good effects of reducing the section size, improving the bearing capacity of the component and enhancing the bending performance of the recombined bamboo beam are achieved.
In one embodiment of the present invention, referring to FIGS. 1-3, comprising: the recombined bamboo beam body 100 is a cuboid, the height is 150mm, the width is 100mm, the length is 6000mm, the total width of the steel plate is 2mm, the height is 130mm, the length is 5800mm, and the recombined bamboo beam body 100 is formed by gluing a plurality of bamboo fiber bundles; the steel plate 200 is vertically embedded in the recombined bamboo beam body 100, and is cemented with the recombined bamboo beam body 100 and hot-pressed to form.
Referring to fig. 4, in another embodiment of the present invention, comprises: the recombined bamboo beam body 100 is a cuboid, the height is 150mm, the width is 100mm, the length is 6000mm, the total width of a steel plate is 2mm, the height is 130mm, the length is 5800mm, and the recombined bamboo beam body 100 is formed by gluing a plurality of bamboo fiber bundles; the two steel plates 200 are vertically embedded in the recombined bamboo beam body 100, are arranged at positions 20mm close to the outer wall of the recombined bamboo beam body 100, are cemented with the recombined bamboo beam body 100 and are formed by hot pressing.
Advantageously, in the two embodiments, the steel plate 200 is provided with a plurality of through holes 201 perpendicular to the length direction thereof, the through holes 201 are filled with bamboo fibers, the bamboo fibers are glued with the bamboo fiber bundles, and the through holes arranged on the steel plate achieve the purpose of saving steel materials and improving economic benefits on the premise of having little influence on rigidity; the steel plate is uniformly arranged in the steel plate, but does not need to be arranged at a position close to the upper edge and the lower edge of the steel plate, so that the operation is convenient; meanwhile, the through holes are filled with bamboo fibers, and the bamboo fibers are glued with the bamboo fiber bundles of the recombined bamboo beam body, so that the bonding effect between the steel plate and the recombined bamboo can be enhanced, and the bonding capability of the steel plate and the recombined bamboo is improved.
The invention also provides a preparation method of the built-in vertical steel plate reinforced recombined bamboo beam, which comprises the following steps: splitting the bamboo tube into strips, pressing the split bamboo strips into bamboo splits and binding the bamboo splits into bamboo fiber bundles, and then dipping the bamboo fiber bundles for later use; determining steel plates in the inner part according to the use condition, wherein the steel plates comprise the specification, the shape and the number of through holes; determining the positions and the number (single plate, double plates and thickness) of the steel plates in the recombined bamboo beam body to ensure that the beam has enough rigidity; the steel plate is dipped and dried for standby after being wound with bamboo fibers, so that a better bonding effect is obtained between the steel plate and the recombined bamboo; and then, molding, namely vertically placing a steel plate in the mold, laying the impregnated bamboo fiber bundle, and performing hot press molding on the impregnated bamboo fiber bundle and the impregnated and dried steel plate.
Therefore, the built-in vertical steel plate is directly formed by cementing and hot pressing in the recombined bamboo beam processing engineering, and does not need to be grooved or processed for the second time, so that the integrity of the beam can be ensured. The steel plates are vertically arranged, so that the rigidity of the beam can be effectively improved, and the problem that the recombined bamboo beam is too large in bending deformation as a flexural member is solved. The through holes are uniformly arranged in the steel plate, but do not need to be arranged at a position close to the upper edge and the lower edge of the steel plate, so that the operation is convenient; meanwhile, the holes in the steel plate can enhance the bonding effect between the steel plate and the recombined bamboo, so that the bonding capability of the steel plate and the recombined bamboo is improved, the purpose of saving steel is achieved on the premise of not affecting the rigidity greatly, and the economic benefit is improved. The vertical steel plate is placed in the recombined bamboo beam to improve the rigidity of the recombined bamboo beam, the reinforcing mode is convenient and effective, meanwhile, the corrosion of the steel plate can be avoided, and the safety and the durability of the component are enhanced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
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| CN202110193186.7A CN112832457B (en) | 2021-02-20 | 2021-02-20 | Built-in vertical steel plate reinforced recombined bamboo beam and preparation method thereof |
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| CN202110193186.7A CN112832457B (en) | 2021-02-20 | 2021-02-20 | Built-in vertical steel plate reinforced recombined bamboo beam and preparation method thereof |
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| CN112832457B CN112832457B (en) | 2024-08-27 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202247672U (en) * | 2011-10-13 | 2012-05-30 | 南京林业大学 | A reinforced composite bamboo component |
| CN108952144A (en) * | 2018-08-21 | 2018-12-07 | 南京林业大学 | A kind of bamboo and wood-stainless steel double shuttering and its manufacturing method |
| CN208415694U (en) * | 2018-06-15 | 2019-01-22 | 上海市建筑科学研究院 | A kind of imitative bamboo Recombined bamboo column |
| US20190119913A1 (en) * | 2015-01-28 | 2019-04-25 | Kaltia Consultoria Y Proyectos, S.A. De C.V. | Prefabricated structural bamboo system for slabs and roofs |
| CN110029726A (en) * | 2019-05-15 | 2019-07-19 | 南京林业大学 | A kind of assembled steel bamboo and wood combined structure system of suitable multi-rise building |
| US20200040564A1 (en) * | 2016-10-17 | 2020-02-06 | South China University Of Technology | Reinforced compound concrete beam-column joint containing demolished concrete lumps and a construction method |
| CN210257531U (en) * | 2019-03-25 | 2020-04-07 | 福建省和普新材料有限公司 | Novel composite bottom plate of container |
| CN214941637U (en) * | 2021-02-20 | 2021-11-30 | 东北林业大学 | Built-in vertical steel plate reinforcing reorganization bamboo roof beam |
-
2021
- 2021-02-20 CN CN202110193186.7A patent/CN112832457B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202247672U (en) * | 2011-10-13 | 2012-05-30 | 南京林业大学 | A reinforced composite bamboo component |
| US20190119913A1 (en) * | 2015-01-28 | 2019-04-25 | Kaltia Consultoria Y Proyectos, S.A. De C.V. | Prefabricated structural bamboo system for slabs and roofs |
| US20200040564A1 (en) * | 2016-10-17 | 2020-02-06 | South China University Of Technology | Reinforced compound concrete beam-column joint containing demolished concrete lumps and a construction method |
| CN208415694U (en) * | 2018-06-15 | 2019-01-22 | 上海市建筑科学研究院 | A kind of imitative bamboo Recombined bamboo column |
| CN108952144A (en) * | 2018-08-21 | 2018-12-07 | 南京林业大学 | A kind of bamboo and wood-stainless steel double shuttering and its manufacturing method |
| CN210257531U (en) * | 2019-03-25 | 2020-04-07 | 福建省和普新材料有限公司 | Novel composite bottom plate of container |
| CN110029726A (en) * | 2019-05-15 | 2019-07-19 | 南京林业大学 | A kind of assembled steel bamboo and wood combined structure system of suitable multi-rise building |
| CN214941637U (en) * | 2021-02-20 | 2021-11-30 | 东北林业大学 | Built-in vertical steel plate reinforcing reorganization bamboo roof beam |
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Inventor after: Li Ling Inventor after: Guo Nan Inventor after: Yang Chao Inventor after: Mei Lidan Inventor after: Wu Mingtao Inventor after: Zhao Yan Inventor after: Liu Pijin Inventor before: Guo Nan Inventor before: Yang Chao Inventor before: Mei Lidan Inventor before: Wu Mingtao Inventor before: Li Ling Inventor before: Zhao Yan Inventor before: Liu Pijin |
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