CN202689337U - FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam - Google Patents
FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam Download PDFInfo
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- CN202689337U CN202689337U CN 201220178111 CN201220178111U CN202689337U CN 202689337 U CN202689337 U CN 202689337U CN 201220178111 CN201220178111 CN 201220178111 CN 201220178111 U CN201220178111 U CN 201220178111U CN 202689337 U CN202689337 U CN 202689337U
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Abstract
The utility model discloses an FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam. The beam comprises an FRP rectangular pipe (2), concrete (1) and a hollow raw bamboo tube (3), wherein the hollow raw bamboo tube (3) is arranged at the bottom of the beam. Agricultural and forestal biomass resources with rich reserves in our nation are applied to civil construction structure members by making full use of the characteristics of three materials (or four materials). The beam has the advantages of light self weight, large rigidity, good ductility, strong self-recovery capability, good economic performance, superior shock absorption performance and the like, is simple in construction process and can be applied to the bending members in the field of civil construction structures.
Description
Technical field
The utility model relates to, 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 preferably elasticity and toughness, and deformability is strong.Build the house with all or part of replacement concrete of bamboo wood, steel or loam brick etc., meet significant task---the fundamental requirement of " Green Development; build a resource-conserving and environment-friendly society " that " 12 " planning is disposed, also meet major fields and the preferential theme of saving energy and reduce the cost, develop the agricultural-forestry biomass resource that " National Program for Medium-to Long-term Scientific and Technological Development (2006-2020) " determines.
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 larger 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 more widely Box section beam 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 large, steel quantity consumption and consumption amount of concrete are all larger; 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 that is formed by the concrete of FRP outer tube, steel inner tube and filling between the two).These schemes all are take the mineral matter energy resource as main, and the mineral matter energy resource is limited on the earth.
Existing scheme all is the flexural members that become take the mineral matter resource as dominant shape, and some scheme working procedure trouble, the purpose of this utility model 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).
The utility model content
Technical problem to be solved in the utility model is to provide a kind of FRP, concrete, hollow former bamboo rectangular beam for the deficiencies in the prior art.
The technical solution of the utility model is as follows:
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 utility model takes full advantage 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.The advantages such as this kind beam has from heavy and light, rigidity is large, 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 utility model is elaborated.
With reference to figure 1, Fig. 2, Fig. 3, in the utility model, 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 bear the actual conditions of load suitably at concrete the inside layout FRP muscle 4 (or reinforcing bars) according to structure in addition.
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 its Main Function 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 for the outer tube of making this class A of geometric unitA than carbon fibre reinforced composite (Carbon FRP).
The number of hollow former thick bamboo tube 3 can be according to actual conditions adjustment (seeing Fig. 1 or Fig. 2).The FRP cylinder also can make other section form into.
All material and relative dimensions all need be calculated according to the needs of Practical Project and choose.Select beam section size (size is determined with the ordinary concrete beam) according to the span of beam and the load of bearing, then determine the rectangular tube size according to the beam section size, according to the concrete engineering force analysis, calculate what and size of required former thick bamboo tube, if need configuration FRP muscle or reinforcing bar, can be by calculative determination, method is all with the ordinary concrete beam.
The purpose of this utility model provides a kind of FRP-concrete that can be widely used in the civil construction field-hollow former bamboo rectangular beam, it is all large or expend the shortcomings such as the mineral matter energy resource is larger from great, operation trouble, steel quantity consumption and consumption amount of concrete to overcome the prior art scheme, is used for the flexural member of each class formation such as bridge, building.
The major advantage of such new structural members comprises: 1. the agricultural-forestry biomass resource that China's reserves are abundant 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 new structural members 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 saved the template used expense of casting concrete; For solid reinforced concrete member, more saved the concrete of boring part.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
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, also arrange FRP muscle or reinforcing bar in concrete (1) the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178111 CN202689337U (en) | 2012-04-25 | 2012-04-25 | FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178111 CN202689337U (en) | 2012-04-25 | 2012-04-25 | FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689337U true CN202689337U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220178111 Expired - Fee Related CN202689337U (en) | 2012-04-25 | 2012-04-25 | FRP (Fiber Reinforced Plastic), concrete and hollow raw bamboo rectangular beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635200A (en) * | 2012-04-25 | 2012-08-15 | 南京林业大学 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
-
2012
- 2012-04-25 CN CN 201220178111 patent/CN202689337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635200A (en) * | 2012-04-25 | 2012-08-15 | 南京林业大学 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140425 |