CN207079808U - A kind of bamboo wood steel pipe - Google Patents

A kind of bamboo wood steel pipe Download PDF

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Publication number
CN207079808U
CN207079808U CN201720674076.1U CN201720674076U CN207079808U CN 207079808 U CN207079808 U CN 207079808U CN 201720674076 U CN201720674076 U CN 201720674076U CN 207079808 U CN207079808 U CN 207079808U
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China
Prior art keywords
bamboo
steel pipe
strip band
bamboo strip
band
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CN201720674076.1U
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Chinese (zh)
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程勋煜
魏洋
李国芬
端茂军
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Nanjing Forestry University
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Nanjing Forestry University
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Abstract

A kind of bamboo wood steel pipe, it is characterized in that the structure includes the compound core pipe of bamboo (1), steel pipe (2), the compound outer tube of bamboo (3), external protection coating (4), wherein, the surfaces externally and internally that the compound core pipe of bamboo (1) is pasted on steel pipe (2) with the compound outer tube of bamboo (3) by longitudinal bamboo strip band (A) and horizontal bamboo strip band (B) by resin glue layering continuous uniform winding is formed, longitudinal bamboo strip band A and horizontal bamboo strip band B slight overlap joint using bamboo, suture or be woven on lining cloth, per 0.3~1.5mm of thickness degree, the width of bamboo strip band is 20~200mm, external protection coating (4) directly coating is solidificated in the outer surface of the compound outer tube of bamboo (3).The utility model overcomes the deficiency present in known steel pipe composite construction, delays, postpones the local buckling of steel pipe, improve structural bearing capacity and non-deformability, good endurance, meanwhile cost is low, green, resource is renewable, effects of energy saving and emission reduction is notable, economic benefits.

Description

A kind of bamboo wood-steel pipe
Technical field
The utility model belongs to civil engineering structure technical field, and in particular to a kind of composite pipe, especially a kind of bamboo Material-steel pipe.
Background technology
Domestic and foreign scholars have carried out substantial amounts of research and application, the bearing capacity of steel pipe to steel pipe composite construction for many years High, easy processing, when steel pipe load is larger, member section still can be bigger, now need the thicker steel pipe of wall thickness with Improve bearing capacity.Therefore, steel using amount is still bigger than normal, and the supply channel of major diameter, thick walled steel tube is few, if using double-deck Steel pipe, then difficulty of construction is larger, if higher using high strength steel pipe, cost.In addition, steel pipe is chronically exposed to acid rain, seawater With easy corrosion in the Korrosionsmedium such as salt-soda soil, durability reduces, and causes steel-tube construction bearing capacity to be remarkably decreased.Meanwhile steel Tubular construction in use, inevitably produces local buckling inwardly or outwardly, so as to play steel well The material property of material.
For above structure, researcher also continually develop new structure type, make every effort to overcome steel pipe the shortcomings that with deficiency. Such as Chinese Patent No. " 201120333896.7 " number, a kind of " a kind of FRP material composite stainless steel pipe " is disclosed, but in the structure Used FRP is fiberglass reinforced plastics, carbon fibre reinforced plastic, Basalt fiber reinforced plastic, aramid fiber enhancing One kind in plastics or four kinds of fiber hybrid reinforced plastics, these reinforcing materials are the fibre reinforced plastics of high energy consumption, are consumed A large amount of valuable petroleum resources, product and waste material be not recyclable.
The utility model provides a kind of bamboo wood-steel pipe, to overcome defect present in prior art, meets engineering Using needs.
The content of the invention
The purpose of this utility model is to provide a kind of bamboo wood-steel pipe, delays or prevents the office of steel pipe inwardly or outwardly Portion's flexing, the performance of steel-tube construction is lifted, improve the stress performance and anti-seismic performance of structure, in the severe ring such as humidity, salt-soda soil There is good durability in border, meanwhile, this structure takes full advantage of China's bamboo resource, and low-carbon environment-friendly, resource can Regeneration, promote sustainable development.This structure is applied to skyscraper, science of bridge building, underground engineering and harbour under adverse circumstances In the structures such as engineering.
Therefore, the utility model provides a kind of bamboo wood-steel pipe, it is characterised in that the structure include the compound core pipe of bamboo, The compound outer tube of steel pipe, bamboo, external protection coating, wherein, the compound core pipe of bamboo is with the compound outer tube of bamboo by longitudinal bamboo strip band and horizontal bamboo Slight band and continuous uniform winding is layered by resin glue is pasted on the surfaces externally and internally of steel pipe and formed;External protection coating directly coats solidification In the outer surface of the compound outer tube of bamboo.
Described longitudinal bamboo strip band and the winding number of plies of horizontal bamboo strip band are unrestricted, can be 0 layer, 1 layer or 1 layer More than, the axis direction of the axis direction of longitudinal bamboo strip band along bamboo wood-steel pipe, the axis direction of horizontal bamboo strip band Angle between the axis vertical direction of bamboo wood-steel pipe is between -45 ° to 45 °, the axis of each layer transverse direction bamboo strip band Direction can be with identical or different, and longitudinal bamboo strip band provides longitudinal anti-bending bearing capacity for structure, and horizontal bamboo strip band carries for steel pipe Constrained for enhancing, delay, postpone the local buckling of steel pipe.
Described longitudinal bamboo strip band and horizontal bamboo strip band slight overlap joint using bamboo, suture or be woven on lining cloth, every layer 0.3~1.5mm of thickness, the width of bamboo strip band is 20~200mm.
Described external protection coating can use the materials such as epoxy resin, unsaturated polyester resin or pitch, and add anti-old Change filler.
Described resin glue is one kind in epoxy resin, vinylite, polyurethane resin.
The utility model overcomes the deficiency present in known steel-tube construction, delays, postpones the local buckling of steel pipe, carry High structural bearing capacity and non-deformability, good endurance, meanwhile, cost is low, green, resource is renewable, energy-saving and emission-reduction Significant effect, economic benefits.Specifically have the beneficial effect that:
(1) combining structure that the structure is made up of bamboo wood, steel pipe different materials, it is respective can to give full play to constituent material Characteristic:The hoop constraint effect lasting to steel pipe of bamboo wood multiple tube;The elastoplasticity of steel pipe makes structure have good axle calenderability.
(2) bamboo wood has excellent tensile property, winds bamboo wood in steel pipe surfaces externally and internally, can not only reduce the use of steel pipe Steel amount, steel pipe caused local buckling during axle pressure can also be suppressed, while can be improved again as the protective layer of steel pipe The durability of structure.
(3) bamboo wood-steel pipe has larger axial rigidity, can be used directly as template, save template Manufacturing cost, shorten the completion time of project.
(4) traditional material is taken full advantage of --- bamboo, bamboo have matter as a kind of reproducible, environmentally friendly resource Gently, high intensity, high rigidity, it is corrosion-resistant, cheap the characteristics of, the present invention plays bamboo wood good toughness to greatest extent, longitudinal direction is drawn Stretch that intensity is high, corrosion resistant material sexual clorminance.
In structure of the present utility model, bamboo multiple tube is using continuous thin bamboo strips used for weaving curtain or bamboo fibre as stock, with tree Fat is adhesive, is processed into using advanced horizontal and vertical lamination winding process.Play to greatest extent bamboo wood good toughness, Longitudinal tensile strength is high, corrosion-resistant material performance advantage;And process power consumption is low, pollution is small, and obsolete material is recyclable, Low-carbon environment-friendly, the energy is saved, energy-saving and emission-reduction, is greatly expanded the scope and sphere of bamboo products application.The utility model structure, The advantageous feature of steel pipe, bamboo wood is taken full advantage of, achieves preferable combination property, is built suitable for the high level under adverse circumstances Build, the post in the structure such as science of bridge building, underground engineering and port engineering, bridge pier, pile foundation, truss member etc..
Brief description of the drawings:
Fig. 1 is a kind of circular cross-sectional configuration schematic diagram of bamboo wood-steel pipe;
Fig. 2 is a kind of oval cross section structural representation of bamboo wood-steel pipe;
Fig. 3 is a kind of angular cross-sectional structure schematic diagram of the rounding of bamboo wood-steel pipe;
Fig. 4 is longitudinal bamboo strip band schematic diagram in a kind of bamboo wood-steel pipe;
Fig. 5 is horizontal bamboo strip band schematic diagram in a kind of bamboo wood-steel pipe;
In 1~accompanying drawing of accompanying drawing 5,1 be the compound core pipe of bamboo, 2 be steel pipe, 3 be the compound outer tube of bamboo, 4 be external protection coating, A be Longitudinal bamboo strip band, B are horizontal bamboo strip band.
Embodiment:
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, now control illustrates The embodiment of the present invention.The utility model provides a kind of bamboo wood-steel pipe, and the structure includes the compound core pipe 1 of bamboo, steel The compound outer tube 3 of pipe 2, bamboo, external protection coating 4, wherein, the compound core pipe 1 of bamboo is with the compound outer tube 3 of bamboo by longitudinal bamboo strip band A and horizontal stroke The surfaces externally and internally for being pasted on steel pipe 2 by resin glue layering continuous uniform winding with B to bamboo strip is formed;External protection coating 4 is direct Coating is solidificated in the outer surface of the compound outer tube 3 of bamboo, and external protection coating 4 can use epoxy resin, unsaturated polyester resin or pitch Deng material, and add anti-aging filler.
Described longitudinal bamboo strip band A and horizontal bamboo strip band B slights overlap joint using bamboo, sutures or be woven on lining cloth, often Thickness 0.3~1.5mm of degree, the width of bamboo strip band is 20~200mm.Longitudinal bamboo strip is with the winding of A and horizontal bamboo strip with B The number of plies is unrestricted, can be 0 layer, 1 layer or more than 1 layer, axis direction of longitudinal bamboo strip with A is along bamboo wood-steel pipe Axis direction, angle between axis direction of the horizontal bamboo strip with B and the axis vertical direction of bamboo wood-steel pipe- Between 45 ° to 45 °, each axis direction of the layer transverse direction bamboo strip with B can be with identical or different.
Described resin glue is one kind in epoxy resin, vinylite, polyurethane resin.
The preparation method of bamboo multiple tube:
(1) mao bamboon is split into bamboo to slight, degreasing, cleaning, drying simultaneously control moisture content, slight bamboo connect into one with lining cloth afterwards The continuous bamboo strip band of bar, 0.3~1.5mm of thickness, bamboo strip 20~200mm of bandwidth, connected mode can be bonding, seam Close, weave etc.;
(2) by above-mentioned bamboo strip band rolled, referring to accompanying drawing 4, it is coiled after bamboo strip band in cylinder, bamboo strip band Bamboo slights bamboo fibre direction to roll direction;
(3) bamboo of bamboo strip band is slightd into axis direction of the bamboo fibre direction along bamboo wood-steel pipe to lay, ring winding Paste and wind longitudinal bamboo strip band A;
(4) bamboo of bamboo strip band is slightd into the angle between bamboo fibre direction and the axis vertical direction of bamboo wood-steel pipe Wound between -45 ° to 45 °, that is, wind horizontal bamboo strip band B;
(5) longitudinal bamboo strip is unrestricted with the winding number of plies of A and horizontal bamboo strip with B, can be 0 layer, 1 layer or 1 layer More than;
(6) resin glue is added in winding, resin glue is by one kind in epoxy resin, vinylite, polyurethane resin Composition, and so on, is wound to design thickness;
(7) solidify by solidification equipment, the body being cured is subjected to surface polishing and finishing.
Embodiment one:
Such as the circular cross-sectional configuration schematic diagram of Fig. 1, the utility model a kind of bamboo wood-steel pipe provided, the structure Including the compound core pipe 1 of bamboo, steel pipe 2, the compound outer tube 3 of bamboo, external protection coating 4, wherein, the compound core pipe 1 of bamboo and the compound outer tube 3 of bamboo by Longitudinal bamboo strip is pasted on the surfaces externally and internally shape of steel pipe 2 with A and horizontal bamboo strip with B by resin glue layering continuous uniform winding Into;Thin bamboo strips used for weaving band is wound using longitudinal bamboo strip with A and horizontal bamboo strip with the combined canoes of B, is first indulged To winding of the bamboo strip with A, one layer is wound, then carries out winding of the horizontal bamboo strip with B, the winding number of plies is one layer, horizontal bamboo The angle between band B axis direction and the axis vertical direction of bamboo wood-steel pipe is slightd between -45 ° to 45 °, finally, In the compound outer surface of the outer tube 3 coating external protection coating 4 of bamboo.
Embodiment two:
Such as the oval cross section structural representation of Fig. 2, the utility model a kind of bamboo wood-steel pipe provided, it has Body preparation method is the same as embodiment one.
Embodiment three:
Such as the angular cross-sectional structure schematic diagram of rounding of Fig. 3, the utility model a kind of bamboo wood-steel pipe provided, its Preparation method is the same as embodiment one.
The utility model while structural behaviour is improved, makes full use of compared with existing steel pipe, FRP- steel pipes The bamboo resource in China, it is high, corrosion-resistant that bamboo wood internal pressure specific strength height, good toughness, longitudinal tensile strength are played to greatest extent Deng material sexual clorminance, manufacturing process links are " greens ", environment amenable, promote sustainable development, meet constructions and " provide The national policy requirement of source economizing type ", " environmentally friendly ".

Claims (5)

1. a kind of bamboo wood-steel pipe, common by the compound core pipe of bamboo (1), steel pipe (2), the compound outer tube of bamboo (3), external protection coating (4) Form, wherein, the compound core pipe of bamboo (1) is logical by longitudinal bamboo strip band (A) and horizontal bamboo strip band (B) with the compound outer tube of bamboo (3) Cross resin glue layering continuous uniform winding and be pasted on the surfaces externally and internally of steel pipe (2) and formed, external protection coating (4) directly coating is solidificated in The outer surface of the compound outer tube of bamboo (3).
2. a kind of bamboo wood-steel pipe according to claim 1, it is characterised in that longitudinal bamboo strip band (A) and horizontal bamboo It is unrestricted to slight the winding number of plies of band (B), can be 0 layer, 1 layer or more than 1 layer, the axis direction of longitudinal bamboo strip band (A) Along the axis direction of bamboo wood-steel pipe, the axis of the axis direction and bamboo wood-steel pipe of horizontal bamboo strip band (B) hangs down For angle of the Nogata between -45 ° to 45 °, the axis direction of each layer transverse direction bamboo strip band (B) can be with identical or different.
3. a kind of bamboo wood-steel pipe according to claim 1, it is characterised in that longitudinal bamboo strip band (A) and horizontal bamboo Slight band (B) to slight overlap joint using bamboo, suture or be woven on lining cloth, per thickness 0.3~1.5mm of degree, the width of bamboo strip band is 20~200mm.
4. a kind of bamboo wood-steel pipe according to claim 1, it is characterised in that external protection coating (4) can use asphalt mixtures modified by epoxy resin Fat, unsaturated polyester resin or asphalt material, and add anti-aging filler.
5. a kind of bamboo wood-steel pipe according to claim 1, it is characterised in that resin glue is epoxy resin, vinyl One kind in resin, polyurethane resin.
CN201720674076.1U 2017-06-08 2017-06-08 A kind of bamboo wood steel pipe Active CN207079808U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720674076.1U CN207079808U (en) 2017-06-08 2017-06-08 A kind of bamboo wood steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720674076.1U CN207079808U (en) 2017-06-08 2017-06-08 A kind of bamboo wood steel pipe

Publications (1)

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CN207079808U true CN207079808U (en) 2018-03-09

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CN (1) CN207079808U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067256A (en) * 2019-05-05 2019-07-30 南京林业大学 A kind of constraint reinforcing type bamboo steel pipe structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067256A (en) * 2019-05-05 2019-07-30 南京林业大学 A kind of constraint reinforcing type bamboo steel pipe structure

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Assignee: Zhenjiang Heng An Civil Technology Co., Ltd.

Assignor: Nanjing Forestry University

Contract record no.: 2018320000206

Denomination of utility model: Bamboo-steel composite pipe concrete combination structure

Granted publication date: 20180309

License type: Common License

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Assignee: Hefei Shuang Dao run Highway Engineering Co., Ltd.

Assignor: Nanjing Forestry University

Contract record no.: 2018320000292

Denomination of utility model: Bamboo-steel composite pipe concrete combination structure

Granted publication date: 20180309

License type: Common License

Record date: 20181102

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Assignee: Limited by Share Ltd Beijing nine road detection technology

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Contract record no.: X2019320000056

Denomination of utility model: Bamboo-steel composite pipe concrete combination structure

Granted publication date: 20180309

License type: Common License

Record date: 20190912

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