CN102635200A - FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam - Google Patents
FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam Download PDFInfo
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- CN102635200A CN102635200A CN2012101227070A CN201210122707A CN102635200A CN 102635200 A CN102635200 A CN 102635200A CN 2012101227070 A CN2012101227070 A CN 2012101227070A CN 201210122707 A CN201210122707 A CN 201210122707A CN 102635200 A CN102635200 A CN 102635200A
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Abstract
The invention discloses an FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam, comprising an FRP rectangular pipe (2), concrete (1) and a hollow original bamboo tube (3), wherein the hollow original bamboo tube (3) is arranged at the bottom of the beam. According to the beam, the characteristics of 3 types of materials (or 4 types) are fully utilized to apply agricultural and forest biomass resources which are abundant in our country to structural components in civil construction. The beam disclosed by the invention has the advantages of small weight, large rigidity, good ductility, excellent self-restoration capability, excellent economic performance, superior earthquake resistance, simple construction procedures and the like, and can be applied to bent components in the field of civil construction structures.
Description
Technical field
The present invention relates in particular a kind of FRP, concrete, hollow former bamboo rectangular beam.
Background technology
China abounds with bamboo, and owning amount and quality all occupy first place in the world.Renewable, the degradable of bamboo, general 3-5 can be become a useful person.The tensile strength of bamboo wood is about 2 times of timber, and compressive strength is about 1.5 times of timber, and the specific strength of bamboo wood is higher than common wood, structural steel, aluminium alloys, concrete etc.Bamboo wood has elasticity and toughness preferably, and deformability is strong.Build the house with all or part of replacement concrete of bamboo wood, steel or loam brick etc.; Meet great task---the fundamental requirement of " Green Development; build a resource-conserving and environment-friendly society " that " 12 " planning is disposed, also meet the major fields and the preferential theme of saving energy and reduce the cost, developing the agricultural-forestry biomass resource that " National Program for Medium-to Long-term Scientific and Technological Development (2006-2020) " confirms.
Existing main technical schemes be with embedded steel in concrete, form steel concrete solid beam or I-shaped cross-section beam.The conventional concrete beam is all bigger from great, steel quantity consumption and consumption amount of concrete; Formwork and form removal are wanted in construction, the operation trouble.Be exactly to use box-type section beam more widely in the bridge in addition.
The tradition Reinforced Concrete Members with Flexure be with embedded steel in concrete, form steel concrete solid beam or I-shaped cross-section beam.Such member dead weight is big, steel quantity consumption and consumption amount of concrete are all bigger; Formwork and form removal are wanted in construction, the operation trouble.Also there is the problem of a working procedure trouble in box beam.Also there are other scholars to propose two steel tubular beam, two FRP pipe beam and FRP-concrete-steel combining double-wall hollow beam (a kind of combined member of forming by the concrete of pipe in FRP outer tube, the steel and filling between the two).These schemes all are to be main with the mineral matter energy resource, and the mineral matter energy resource is limited on the earth.
Existing scheme all is to be the flexural member of dominant shape one-tenth with the mineral matter resource, and some scheme working procedure trouble, and the object of the invention is exactly the shortcoming that will overcome the prior art scheme, and the biomass resource that China's reserves are abundant applies in the flexural member system.
FRP is fibre reinforced composites, and commonly used have glass fibre reinforced composion (Glass FRP) and a carbon fibre reinforced composite (Carbon FRP).
Summary of the invention
Technical problem to be solved by this invention is that the deficiency that is directed against prior art provides a kind of FRP, concrete, hollow former bamboo rectangular beam.
Technical scheme of the present invention is following:
A kind of FRP, concrete, hollow former bamboo rectangular beam comprise FRP rectangular tube (2), concrete (1) and hollow former thick bamboo tube (3), and the former thick bamboo tube of its hollow core (3) is arranged at the bottom of the beam.
Described FRP, concrete, hollow former bamboo rectangular beam are born the actual conditions of load and are suitably arranged FRP muscle or reinforcing bar in concrete (1) the inside according to structure.
The present invention has made full use of the characteristics of 3 kinds of materials (or 4 kinds), and the agricultural-forestry biomass resource that China's reserves are abundant is applied in the civil engineering structure member.Advantages such as this kind beam has from heavy and light, rigidity is big, ductility good, automatic recovery ability is strong, economic performance is good, anti-seismic performance is superior, and working procedure is simple, can be applicable to the flexural member in the civil engineering structure field.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are respectively FRP, concrete, the hollow former bamboo rectangular beam sectional view of three kinds of different structures;
1 is concrete, and 2 is the FRP rectangular tube, and 3 is hollow former thick bamboo tube, and 4 is FRP muscle (or reinforcing bar).
The specific embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
With reference to figure 1, Fig. 2, Fig. 3, in the present invention, FRP, concrete, hollow former bamboo rectangular beam comprise FRP rectangular tube 2, concrete 1 and hollow former thick bamboo tube 3, and the former thick bamboo tube 3 of its hollow core is arranged at the bottom of the beam.Can suitably arrange FRP muscle 4 (or reinforcing bars) according to the actual conditions that structure is born load in addition in the concrete the inside.
The outer tube of this kind new type of component is for mainly comprising hoop or near the FRP rectangular tube 2 of hoop fiber, longitudinal rigidity is very little, and it mainly acts on is confined concrete and improves shear-carrying capacity; Concrete 1 and the main longitudinal stress material of 3 conducts of hollow former thick bamboo tube, and the concrete the inside also can be arranged FRP muscle 4 (or reinforcing bar) when needed.Because characteristics such as the lower and deformability of its price are better, glass fibre reinforced composion (Glass FRP) is more suitable for being used to make the outer tube of this class A of geometric unitA than carbon fibre reinforced composite (Carbon FRP).
The number of hollow former thick bamboo tube 3 can be adjusted (seeing Fig. 1 or Fig. 2) according to actual conditions.The FRP tube also can make other section form into.
All material and relative dimensions all need be calculated according to the needs of actual engineering and choose.Span according to beam is selected beam section size (size is confirmed with the ordinary concrete beam) with the load size of bearing; Confirm the rectangular tube size according to the beam section size then; According to concrete engineering force analysis, calculate what and size of required former thick bamboo tube, dispose FRP muscle or reinforcing bar if desired; Can confirm that method is all with the ordinary concrete beam by calculating.
The purpose of this invention is to provide a kind of FRP-concrete-hollow former bamboo rectangular beam that can be widely used in the civil construction field; Overcome the prior art scheme all greatly or expend shortcomings such as the mineral matter energy resource is bigger, be used for the flexural member of each class formation such as bridge, building from great, operation trouble, steel quantity consumption and consumption amount of concrete.
The major advantage of such novel combination member comprises: 1. that China's reserves are abundant agricultural-forestry biomass resource is applied in the flexural member, saves the mineral matter energy resource; 2. deadweight is lighter: the space of component inside has effectively alleviated dead load; 3. easy construction: FRP rectangular tube and hollow former thick bamboo tube can be used as the template of casting concrete when constructing, thereby have avoided the operation of conventional concrete structure fabrication and stripping; 4. corrosion resistance and good: FRP rectangular tube corrosion resistance is strong, if dispose an amount of reinforcing bar, reinforcing bar by FRP rectangular tube and the protection of thick layer of concrete interior; 5. ductility and anti-seismic performance are good: FRP rectangular tube and hollow former thick bamboo tube provide constraint to concrete, thereby improve the ductility of member.There is not buckling problem in the hoop rigidity of FRP rectangular tube much larger than its longitudinal rigidity, and the outside bending deformation of hollow former thick bamboo tube is then limited by concrete.Even be also pointed out that from initial cost, such novel combination member also is a kind of component form of economy: bamboo wood intensity is high, can save the consumption of steel; And than the ordinary reinforced concrete hollow unit, this kind new type of component has been practiced thrift the template used expense of casting concrete; For solid reinforced concrete member, more practiced thrift the concrete of boring part.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (2)
1. a FRP, concrete, hollow former bamboo rectangular beam is characterized in that comprise FRP rectangular tube (2), concrete (1) and hollow former thick bamboo tube (3), the former thick bamboo tube of its hollow core (3) is arranged at the bottom of the beam.
2. FRP according to claim 1, concrete, hollow former bamboo rectangular beam is characterized in that, bear the actual conditions of load according to structure and suitably arrange FRP muscle or reinforcing bar in concrete (1) the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101227070A CN102635200A (en) | 2012-04-25 | 2012-04-25 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101227070A CN102635200A (en) | 2012-04-25 | 2012-04-25 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
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| CN102635200A true CN102635200A (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101227070A Pending CN102635200A (en) | 2012-04-25 | 2012-04-25 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306427A (en) * | 2013-06-20 | 2013-09-18 | 南京林业大学 | Hollow original bamboo steel fiber concrete beam or column member |
| CN104612326A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | Porous composite bamboo or FRP biomass circular component and preparation method thereof |
| CN104612327A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | FRP (steel) reinforced biological matrix plastic circular hollow component and preparation method |
| CN104612328A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | Porous bamboo composite material rectangular structural component and preparation method thereof |
| CN106192764A (en) * | 2016-08-22 | 2016-12-07 | 广东工业大学 | A kind of pre-stress FRP concrete box type girder and production technology |
| CN109057134A (en) * | 2018-10-06 | 2018-12-21 | 曹昌仪 | A kind of hollow brick of bamboo emptying aperture |
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| JPH05113006A (en) * | 1991-10-24 | 1993-05-07 | Hazama Gumi Ltd | Structure of arrangement of reinforcement for reinforced concrete beam |
| CN101177966A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Hollow double-layer FRP pipe concrete combination structure |
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| CN101575895A (en) * | 2009-05-27 | 2009-11-11 | 清华大学 | High-durability fiber-reinforced composite reinforced concrete combined component |
| CN101942885A (en) * | 2010-09-16 | 2011-01-12 | 南京林业大学 | A kind of FRP-bamboo-concrete combination beam |
| CN102261164A (en) * | 2010-05-24 | 2011-11-30 | 香港理工大学 | FRP (fibre-reinforced polymer)-concrete-steel double-wall combined tubular beam and beam-slab combined structure adopting same |
| CN202689337U (en) * | 2012-04-25 | 2013-01-23 | 南京林业大学 | FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam |
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2012
- 2012-04-25 CN CN2012101227070A patent/CN102635200A/en active Pending
Patent Citations (7)
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| JPH05113006A (en) * | 1991-10-24 | 1993-05-07 | Hazama Gumi Ltd | Structure of arrangement of reinforcement for reinforced concrete beam |
| CN101177966A (en) * | 2007-12-06 | 2008-05-14 | 合肥工业大学 | Hollow double-layer FRP pipe concrete combination structure |
| CN201169843Y (en) * | 2008-03-13 | 2008-12-24 | 杨小平 | Cast-in-situ light inner partition |
| CN101575895A (en) * | 2009-05-27 | 2009-11-11 | 清华大学 | High-durability fiber-reinforced composite reinforced concrete combined component |
| CN102261164A (en) * | 2010-05-24 | 2011-11-30 | 香港理工大学 | FRP (fibre-reinforced polymer)-concrete-steel double-wall combined tubular beam and beam-slab combined structure adopting same |
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| CN202689337U (en) * | 2012-04-25 | 2013-01-23 | 南京林业大学 | FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306427A (en) * | 2013-06-20 | 2013-09-18 | 南京林业大学 | Hollow original bamboo steel fiber concrete beam or column member |
| CN104612326A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | Porous composite bamboo or FRP biomass circular component and preparation method thereof |
| CN104612327A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | FRP (steel) reinforced biological matrix plastic circular hollow component and preparation method |
| CN104612328A (en) * | 2014-12-30 | 2015-05-13 | 南京林业大学 | Porous bamboo composite material rectangular structural component and preparation method thereof |
| CN104612326B (en) * | 2014-12-30 | 2016-08-17 | 南京林业大学 | Porous compound bamboo or FRP biomass round member and preparation method |
| CN104612327B (en) * | 2014-12-30 | 2016-08-17 | 南京林业大学 | FRP muscle or reinforcing bar strengthen bio-matrix plastic circular hollow unit and preparation method |
| CN106192764A (en) * | 2016-08-22 | 2016-12-07 | 广东工业大学 | A kind of pre-stress FRP concrete box type girder and production technology |
| CN109057134A (en) * | 2018-10-06 | 2018-12-21 | 曹昌仪 | A kind of hollow brick of bamboo emptying aperture |
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Application publication date: 20120815 |