CN109025056A - A kind of raw bamboo confined concrete composite structure - Google Patents
A kind of raw bamboo confined concrete composite structure Download PDFInfo
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- CN109025056A CN109025056A CN201811007098.8A CN201811007098A CN109025056A CN 109025056 A CN109025056 A CN 109025056A CN 201811007098 A CN201811007098 A CN 201811007098A CN 109025056 A CN109025056 A CN 109025056A
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- bamboo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
A kind of raw bamboo confined concrete composite structure, the structure includes core concrete (1), hollow raw bamboo (2), bamboo wood enhancement layer (3), inside diaphragm plate gets through the inner cavity (4) to form continuous connection at its ring (21), bamboo wood enhancement layer (3) tight is in the lateral surface of hollow raw bamboo (2), bamboo wood enhancement layer (3) using one layer or more of bamboo cane band is continuous or apart windings in hollow raw bamboo (2) outer surface and using adhesive dipping bonding, bamboo cane band is bamboo rattan, one of raw bamboo cutting band or compound bamboo chip, core concrete (1) fills and riddles the inner cavity (4) of raw bamboo (2).The present invention is using hollow raw bamboo as the formwork for placing of concrete, and concrete lateral displacement further is limited using bamboo wood enhancement layer, inhibit hollow raw bamboo resistance to compression unstability On The Yielding, play the advantage of bamboo wood, the disadvantage for making up concrete, the vertical and horizontal force component that can be used in the works such as bridge, building.
Description
Technical field
The present invention relates to a kind of composite structure, especially a kind of raw bamboo confined concrete composite structure belongs to civil construction
Technical field of structures.
Background technique
In face of increasingly serious environmental problem, expanding economy needs to consider the theory of low-carbon.Bamboo is important forest
One of resource.Although China's forest reserves are relatively poor, bamboo resource very abundant.Bamboo is high with intensity, elasticity is good, property
It can stablize, the advantages that density is small, specific strength and specific stiffness are higher than timber and common steel, can be widely used in civil engineering.
As construction material, bamboo wood has very big Carbon stock during the growth process, and energy consumption is less than other common building materials in process
Material, the growth cycle for comparing timber is much shorter, and discarded rear degradable, the environmental performance based on life cycle management evaluation bamboo wood
It is optimal.Furthermore bamboo wood also has good heat insulation.Therefore, bamboo wood is a kind of good green structural material.
It is that one kind existing for nature is typical, the biological material with excellent mechanical performances as the raw bamboo grown naturally
Material.Bamboo fiber material intensity is high, elasticity is good and density is small, and specific strength is 3 times~4 times of steel, tensile strength with higher
And compression strength；Bamboo section is ring-shaped, by bending when load outer bent face tension and interior bent face is pressurized, bending resistance with higher
Rigidity；External hoop and internal diaphragm plate at ring can increase loaded area, while can also improve the lateral bearing energy of bamboo
Power.But the area of section of raw bamboo is limited, and bearing capacity and stiffness is limited, the application which limit it in engineering structure.
Concrete is durable, fire resistance is excellent because its materials is easy, and compressive property is prominent and is widely used；But its own
There is also from great, cracking resistance, the disadvantages of tensile property is poor.Concrete is used as component, and additional mould is needed when usually pouring
Plate, the production of template and material generate greatly waste.
The present invention provides a kind of raw bamboo confined concrete composite structure, and both raw bamboo and core concrete are combined,
And apply additional restraint and enhancing, to overcome defect existing in the prior art, meet engineering applies needs.
Summary of the invention
It is an object of the invention to provide a kind of raw bamboo confined concrete composite structures, by core concrete, hollow raw bamboo, bamboo wood
Enhancement layer is combined into one, and bamboo wood enhancement layer is continuous using one layer or more of bamboo cane band or apart windings are in the appearance of hollow raw bamboo
Simultaneously using adhesive dipping bonding, close between each ring or interval is connected in face, can limit concrete lateral displacement, and can inhibit
Empty raw bamboo resistance to compression unstability On The Yielding, rigidity and bearing capacity at low cost and that can greatly improve raw bamboo, takes full advantage of
China's bamboo resource, low-carbon environment-friendly, resource is renewable, pushes sustainable development.
For this purpose, the present invention provides a kind of raw bamboo confined concrete composite structure, which includes core concrete, hollow original
Bamboo, bamboo wood enhancement layer, hollow raw bamboo are the age > 4 years primary bamboo woods production of nature growth, inside diaphragm plate at ring
The inner cavity to form continuous connection is got through, bamboo wood enhancement layer tight uses one in the lateral surface of hollow raw bamboo, bamboo wood enhancement layer
Layer or more bamboo cane band is continuous or apart windings in hollow raw bamboo outer surface and using adhesive dipping bonding, it is tight between each ring
Close or interval is connected, and bamboo cane band is one of bamboo rattan, raw bamboo cutting band or compound bamboo chip, winding angle and structure normal section
In -30 °~30 °, the inner cavity of raw bamboo is filled and riddled to core concrete, and core concrete is self-compaction slightly expanded concrete,
Its 14 days limited expansion rates are not less than 0.00015.
Local strengthening cuff, part is arranged along the longitudinal gap of hollow raw bamboo in the external surrounding of the bamboo wood enhancement layer
Reinforce cuff and production is wound using one layer or more of bamboo cane band.
The thickness in monolayer of the compound bamboo chip is 0.1~0.5mm.
1 or more longitudinal reinforcement, the axis longitudinally along hollow raw bamboo of longitudinal reinforcement is arranged in the core concrete
Direction.
The 1/3 of coarse aggregate size≤31.5mm of the core concrete and hollow raw bamboo internal diameter, as a preference,
It is the mortar without coarse aggregate that core concrete, which is degenerated,.
The adhesive is one of epoxy resin, vinylite, polyurethane resin.
The present invention takes full advantage of the bamboo resource of China's sustainable development, utilizes hollow raw bamboo pouring as concrete
Template, and concrete lateral displacement further is limited using bamboo wood enhancement layer, inhibit hollow raw bamboo resistance to compression unstability On The Yielding, most
Play to limits the material sexual clorminance that bamboo wood good toughness, ductility are good, longitudinal tensile strength is high, compensate for concrete structure be easy it is crisp
Property the disadvantage destroyed, manufacturing process low-carbon environment-friendly, energy-saving and emission-reduction are greatly expanded the scope and sphere of bamboo products application.Tool
Body beneficial effect is analyzed as follows:
(1) structure is the composite structure being made of three kinds of core concrete, hollow raw bamboo, bamboo cane band different materials, can be with
Give full play to the respective characteristic of constituent material: bamboo wood enhancement layer provides hoop constraint effect to raw bamboo and core concrete, inhibits
The surrender of raw bamboo resistance to compression unstability；Core concrete is under the collective effect of hollow raw bamboo, bamboo wood enhancement layer and local strengthening cuff, place
Under three-way axis compressive stress state, bearing capacity and ductility are greatly improved；The elasticity of raw bamboo rolls structure with good axis
Property.Three component parts mutually compensate for mutual weakness, have given full play to respective strong point, to keep structure with higher
Bearing capacity.
(2) hollow raw bamboo can factory process, hollow raw bamboo provides lateral natural mould for core concrete cast in situs
Plate, assembling degree is high, greatly improves construction efficiency.
(3) bamboo wood enhancement layer is compound in raw bamboo surrounding, while inhibiting raw bamboo axis pressure local buckling, corrosion-resistance treatment
Bamboo wood enhancement layer can be used as the protective layer of raw bamboo again, improve the durability of raw bamboo structure.
(4) local strengthening cuff further forms local strengthening to hollow raw bamboo, further promotes the carrying of its lateral buckling
Power.
(5) hollow raw bamboo can play the feature that bamboo wood good toughness, ductility are good, longitudinal tensile strength is high, bamboo wood instead of
Traditional steel, with the advantage that low-carbon, environmental protection, energy conservation, resource are renewable etc..
Structure of the invention takes full advantage of the advantageous feature of the materials such as core concrete, hollow raw bamboo, bamboo cane band, obtains
Preferable comprehensive performance, the vertical and horizontal force component that can be used in the works such as bridge, building.
Detailed description of the invention:
Fig. 1 is a kind of raw bamboo confined concrete composite structure (no local strengthening cuff and longitudinal reinforcement) stereoscopic schematic diagram；
Fig. 2 is a kind of signal of raw bamboo confined concrete composite structure (no local strengthening cuff and longitudinal reinforcement) vertical section
Figure；
Fig. 3 is that (bamboo cane band continuous winding has local strengthening cuff and longitudinal steel to a kind of raw bamboo confined concrete composite structure
Muscle) stereoscopic schematic diagram；
Fig. 4 is that (the spaced winding of bamboo cane has local strengthening cuff, without longitudinal direction to a kind of raw bamboo confined concrete composite structure
Reinforcing bar) stereoscopic schematic diagram；
Fig. 5 is a kind of signal of raw bamboo confined concrete composite structure (no local strengthening cuff has longitudinal reinforcement) cross section
Figure；
Fig. 6 is a kind of signal of raw bamboo confined concrete composite structure (no local strengthening cuff has longitudinal reinforcement) cross section
Figure；
Fig. 7 is a kind of signal of raw bamboo confined concrete composite structure (having local strengthening cuff, without longitudinal reinforcement) cross section
Figure；
In the accompanying drawings, 1 is core concrete, and 2 be hollow raw bamboo, and 21 be ring, and 3 be bamboo wood enhancement layer, and 31 add for part
Strong cuff, 4 be inner cavity, and 5 be longitudinal reinforcement.
Specific embodiment:
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.
Such as attached drawing, a kind of raw bamboo confined concrete composite structure, including the enhancing of core concrete 1, hollow raw bamboo 2, bamboo wood
Layer 3, hollow raw bamboo 2 are the age > 4 years primary bamboo woods production of nature growth, and inside diaphragm plate is got through to be formed at ring 21
The inner cavity 4 of continuous connection, 3 tight of bamboo wood enhancement layer in the lateral surface of hollow raw bamboo 2, bamboo wood enhancement layer 3 use one layer with
On bamboo cane band is continuous or apart windings in hollow raw bamboo 2 outer surface and using adhesive dipping bonding, it is close between each ring
Or interval is connected, bamboo cane band is one of bamboo rattan, raw bamboo cutting band or compound bamboo chip, and winding angle is in structure normal section
- 30 °~30 °, the inner cavity 4 of raw bamboo 2 is filled and riddled to core concrete 1, and core concrete 1 is self-compaction microdilatancy coagulation
Soil, limited expansion rate is not less than 0.00015 within 14 days.
Local strengthening cuff 31 is arranged along the longitudinal gap of hollow raw bamboo 2 in the external surrounding of the bamboo wood enhancement layer 3,
Local strengthening cuff 31 winds production using one layer or more of bamboo cane band.
The thickness in monolayer of the compound bamboo chip is 0.1~0.5mm.
The primary bamboo wood moisture content that the hollow raw bamboo 2 uses is 10%~15%.
The core concrete 1 is arranged 1 or more longitudinal reinforcement 5, longitudinal reinforcement 5 longitudinally along hollow raw bamboo 2
Axis direction.
The 1/3 of 2 internal diameter of coarse aggregate size≤31.5mm and hollow raw bamboo of the core concrete 1, as a kind of excellent
Choosing, it is the mortar without coarse aggregate that core concrete 1, which is degenerated,.
The adhesive is one of epoxy resin, vinylite, polyurethane resin.
The present invention improves the comprehensive performance of raw bamboo structure compared with existing raw bamboo structure, and further utilizes bamboo wood
Enhancement layer promotes carrying and the effect of contraction of raw bamboo structure, and local strengthening cuff further forms local strengthening to hollow raw bamboo,
Bamboo wood and Combined concrete, bearing capacity, rigidity are substantially improved, and the cost of structure is low, convenient construction, have broader answer
Use field.
Claims (7)
1. a kind of raw bamboo confined concrete composite structure, it is characterised in that the structure includes core concrete (1), hollow raw bamboo
(2), bamboo wood enhancement layer (3), hollow raw bamboo (2) is that age > 4 years primary bamboo woods of nature growth make, at ring (21)
Internal diaphragm plate gets through the inner cavity (4) to form continuous connection, and bamboo wood enhancement layer (3) tight is in the outside of hollow raw bamboo (2)
Face, bamboo wood enhancement layer (3) is using the outer surface and use that one layer or more of bamboo cane band is continuous or apart windings are in hollow raw bamboo (2)
Adhesive dipping bonds, and close between each ring or interval is connected, and bamboo cane band is in bamboo rattan, raw bamboo cutting band or compound bamboo chip
One kind, winding angle and structure normal section are in -30 °~30 °, and core concrete (1) fills and riddles the inner cavity of raw bamboo (2)
(4), core concrete (1) is self-compaction slightly expanded concrete, and limited expansion rate is not less than 0.00015 within 14 days.
2. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the bamboo wood enhancing
Local strengthening cuff (31) are arranged along the longitudinal gap of hollow raw bamboo (2) in the external surrounding of layer (3), local strengthening cuff (31)
Production is wound using one layer or more of bamboo cane band.
3. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the compound bamboo chip
Thickness in monolayer be 0.1~0.5mm.
4. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the hollow raw bamboo
(2) the primary bamboo wood moisture content used is 10%~15%.
5. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the core coagulation
1 or more longitudinal reinforcement (5), the axis direction longitudinally along hollow raw bamboo (2) of longitudinal reinforcement (5) is arranged in native (1).
6. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the core coagulation
The 1/3 of the coarse aggregate size≤31.5mm of native (1) and hollow raw bamboo (2) internal diameter, as a preference, core concrete (1) moves back
Turn to the mortar without coarse aggregate.
7. a kind of raw bamboo confined concrete composite structure according to claim 1, it is characterised in that the adhesive is
One of epoxy resin, vinylite, polyurethane resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007098.8A CN109025056A (en) | 2018-08-28 | 2018-08-28 | A kind of raw bamboo confined concrete composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007098.8A CN109025056A (en) | 2018-08-28 | 2018-08-28 | A kind of raw bamboo confined concrete composite structure |
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| CN109025056A true CN109025056A (en) | 2018-12-18 |
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| CN201811007098.8A Pending CN109025056A (en) | 2018-08-28 | 2018-08-28 | A kind of raw bamboo confined concrete composite structure |
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Cited By (4)
| 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 |
| CN111287385A (en) * | 2020-03-31 | 2020-06-16 | 北京林业大学 | Original bamboo structure component locally reinforced by FRP (fiber reinforced Plastic) and manufacturing method thereof |
| CN111287489A (en) * | 2020-03-31 | 2020-06-16 | 北京林业大学 | Reinforced cracking raw bamboo and reinforcing method thereof |
| CN111395300A (en) * | 2020-03-23 | 2020-07-10 | 南京林业大学 | Method for reinforcing soft soil foundation structure by using original bamboo grouting piles |
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| CN101793056A (en) * | 2010-01-01 | 2010-08-04 | 罗轶 | Foam cement composite bamboo |
| CN203236778U (en) * | 2013-04-28 | 2013-10-16 | 朱红军 | Polyurethane composite material rod piece with original bamboo reinforced inner container |
| CN203256963U (en) * | 2013-05-24 | 2013-10-30 | 重庆交通大学 | Stirrup reinforced bamboo column |
| CN104389438A (en) * | 2014-12-10 | 2015-03-04 | 华北水利水电大学 | Aseismic strengthening structure and method for concrete column |
| CN104863291A (en) * | 2015-06-19 | 2015-08-26 | 四川九鼎智远知识产权运营有限公司 | Manufacturing method for light weight wall |
| CN106760211A (en) * | 2017-01-17 | 2017-05-31 | 南京林业大学 | A kind of bamboo wood-steel pipe concrete combined structure |
| CN108277925A (en) * | 2018-01-26 | 2018-07-13 | 广东工业大学 | A kind of steel core concrete column and its manufacturing method |
| CN208844789U (en) * | 2018-08-28 | 2019-05-10 | 南京林业大学 | A kind of Concrete Filled raw bamboo composite structure |
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2018
- 2018-08-28 CN CN201811007098.8A patent/CN109025056A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793056A (en) * | 2010-01-01 | 2010-08-04 | 罗轶 | Foam cement composite bamboo |
| CN203236778U (en) * | 2013-04-28 | 2013-10-16 | 朱红军 | Polyurethane composite material rod piece with original bamboo reinforced inner container |
| CN203256963U (en) * | 2013-05-24 | 2013-10-30 | 重庆交通大学 | Stirrup reinforced bamboo column |
| CN104389438A (en) * | 2014-12-10 | 2015-03-04 | 华北水利水电大学 | Aseismic strengthening structure and method for concrete column |
| CN104863291A (en) * | 2015-06-19 | 2015-08-26 | 四川九鼎智远知识产权运营有限公司 | Manufacturing method for light weight wall |
| CN106760211A (en) * | 2017-01-17 | 2017-05-31 | 南京林业大学 | A kind of bamboo wood-steel pipe concrete combined structure |
| CN108277925A (en) * | 2018-01-26 | 2018-07-13 | 广东工业大学 | A kind of steel core concrete column and its manufacturing method |
| CN208844789U (en) * | 2018-08-28 | 2019-05-10 | 南京林业大学 | A kind of Concrete Filled raw bamboo composite structure |
Cited By (4)
| 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 |
| CN111395300A (en) * | 2020-03-23 | 2020-07-10 | 南京林业大学 | Method for reinforcing soft soil foundation structure by using original bamboo grouting piles |
| CN111287385A (en) * | 2020-03-31 | 2020-06-16 | 北京林业大学 | Original bamboo structure component locally reinforced by FRP (fiber reinforced Plastic) and manufacturing method thereof |
| CN111287489A (en) * | 2020-03-31 | 2020-06-16 | 北京林业大学 | Reinforced cracking raw bamboo and reinforcing method thereof |
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