CN202831378U - Lightweight concrete combined member for FRP (fiber reinforce plastic) pipe - Google Patents
Lightweight concrete combined member for FRP (fiber reinforce plastic) pipe Download PDFInfo
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- CN202831378U CN202831378U CN 201220052860 CN201220052860U CN202831378U CN 202831378 U CN202831378 U CN 202831378U CN 201220052860 CN201220052860 CN 201220052860 CN 201220052860 U CN201220052860 U CN 201220052860U CN 202831378 U CN202831378 U CN 202831378U
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- frp pipe
- frp
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- pipe
- concrete construction
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Abstract
The utility model relates to a lightweight concrete combined member for an FRP (fiber reinforce plastic) pipe. The combined member comprises lightweight concrete, an FRP pipe arranged outside the lightweight concrete, a concrete mortar layer which is coated the outside surface of the FRP pipe, and a transverse rebar which penetrates the cross section of the mechanism or an FRP stiffing rib which is convexly arranged on the inner surface of the FRP pipe to form an integrated structure with the FRP pipe. The lightweight concrete combined member for FRP pipe can effectively reduce the self weight of the mechanism, wherein the restraining effect of the FRP pipe on the concrete can effectively improve the compressive strength of the lightweight concrete inside, and the transverse rebar which penetrates the cross section of the mechanism or the stiffing rib can ensure the interoperability between the lightweight concrete and the FRP pipe, thereby reinforcing the mechanical performance of the FRP pipe. Besides, the concrete mortar layer spayed outside the FRP pipe improves the fire-resistant performance of the FPR. The lightweight concrete combined member for an FRP pipe has a good anti-seismic performance and can be used not only for building structures, but also for long-span structures such as bridges.
Description
Technical field
The utility model relates to a kind of concrete structure of civil engineering structure technical field, particularly relates to a kind of FRP pipe light weight concrete construction combined member.
Background technology
Traditional encased structures, have the advantages such as easy construction, energy-dissipating property is good, rigidity is large, the concrete of its core is under the constraint of steel pipe, supporting capacity and deformability are greatly improved, especially it has good ductility, is widely used in high level, strides and bridge construction greatly.But, because the plastic-elastic stress-strain stress relation of steel will be limited to definite value in case steel pipe is surrendered its restraint forces, concrete binding effect is also no longer increased.Therefore, for the large-scale concrete structure that bears high axle power, must adopt thick walled steel tube, steel using amount is large.In addition, steel pipe also is easy to occur corrosion, and durability is relatively poor.
FRP (fibre reinforced composites) is widely applied in the field in civil engineering structures seismic hardening, reinforcement owing to have lightweight, high-strength, corrosion resistant good characteristic.Consider the application advantage of FRP in particular surroundings, the FRP pipe concrete has wide application space as the load-carrying member of newly building bridge, building.Because the FRP pipe has higher intensity mass ratio, rigidity mass ratio and good decay resistance, is specially adapted to the residing complex environment of coastal bridge; In addition, the non-dismantling formwork when the FRP pipe can be construction is again the protecting sheathing of core concrete whole service life simultaneously, the cycle that can also accelerate construction; Because the high-strength and linear elasticity characteristic of FRP, the FRP pipe concrete of amount of restraint abundance shows as the stress-strain relation of bilinearity enhanced type, so FRP can provide powerful constraint for core concrete, ductility and the bearing capacity of increase structural element; In addition, the FRP pipe can keep the concrete restrained condition of total cross-section under macroseism, avoids concrete and comes off, and improves the anti-seismic performance of structural element; Compare with encased structures, the FRP tube coupling has also been economized steel pipe has been carried out at the needs of using as a servant maintenance.
Light weight concrete construction has from heavy and light, durability is strong, anti-seismic performance is excellent characteristic.Its density rating is generally 300-1800kg/m
3, lighter by 25%～30% than the ordinary concrete of same intensity grade.Because from heavy and light, light weight concrete construction can effectively alleviate deadweight and reduce structural internal force for longspan structure.For the works of earthquake zone, because geological process and dead load are directly proportional, adopt light weight concrete construction can significantly reduce geological process.And use light weight concrete construction can also effectively avoid concrete alkali-aggregate reaction, the application life of extending structure.In addition, the hypotonicity that light weight concrete construction has and freezing-thawing resistance can also effectively reduce the appearance in crack in the structure, improve the durability of member, in the application life of member for prolonging, reduce the maintenance cost after structure is built up operation.Because the modulus of elasticity of light weight concrete construction is lower, it can make member have good deformability, thereby seismic load is had better energy dissipation capacity simultaneously.
This shows that above-mentioned existing concrete structure obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, finished by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of FRP pipe light weight concrete construction combined member of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing concrete structure exists, and the FRP that a kind of new structure is provided manages the light weight concrete construction combined member, technical problem to be solved is can be under the effect of seismic load and judder load, guarantee that structure has the ability of enough bearing capacity deposits, ductility and good absorption vibrating load energy, good anti-seismic performance under the implementation structure rarely occurred earthquake is very suitable for practicality.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of FRP pipe light weight concrete construction combined member that the utility model proposes, it comprises: light weight concrete construction and the FRP pipe that is arranged at the described light weight concrete construction outside.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid FRP pipe light weight concrete construction combined member, wherein said FPR pipe is round tube or box section.
Aforesaid FRP pipe light weight concrete construction combined member, wherein said light weight concrete construction is full of the hollow region in the described FRP pipe.
Aforesaid FRP pipe light weight concrete construction combined member wherein is coated with one deck cement sand bed on the surface in the described FRP pipe outside.
Aforesaid FRP pipe light weight concrete construction combined member wherein be provided with transverse reinforcement in the cross section of described member, and described transverse reinforcement is that the cross section of running through described member is fixedly arranged on the described FRP pipe.
Aforesaid FRP pipe light weight concrete construction combined member, wherein said transverse reinforcement are to be fixed on the described FRP pipe by a nut that is arranged at respectively its two ends in the described FRP pipe outside.
Aforesaid FRP pipe light weight concrete construction combined member is wherein managed the stiffening rib that inboard surface is provided with protrusion at described FRP.
Aforesaid FRP pipe light weight concrete construction combined member, wherein said stiffening rib is the FRP stiffening rib that is structure as a whole with described FRP pipe.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of FRP pipe of the utility model light weight concrete construction combined member has following advantages and beneficial effect at least:
1, light weight concrete construction of the present utility model can effectively reduce dead load.
2, FRP pipe of the present utility model is to concrete effect of contraction, can Effective Raise the compressive strength of inner light weight concrete construction, and the FRP stiffening rib that the transverse reinforcement that the member cross section arranges or FRP pipe internal surface are convexly equipped with can guarantee the ability of collaborative work between light weight concrete construction and FRP pipe, strengthens the stress performance of FRP pipe.
3, the utility model can improve the fire resistance of FRP material at the outer cement sand bed that sprays of FRP pipe.
4, anti-seismic performance of the present utility model is good, not only can be used for building structure, more can be used in the large-span structures such as bridge.
In sum, the utility model relates to a kind of FRP pipe light weight concrete construction combined member, and it comprises: light weight concrete construction, be arranged at the light weight concrete construction outside the FRP pipe, be covered in the cement sand bed of FRP pipe outer surface and run through the transverse reinforcement that the cross section of member arranges or the FRP stiffening rib that is convexly set in FRP pipe inner surface that is structure as a whole with the FRP pipe.Light weight concrete construction of the present utility model can effectively reduce the deadweight of member; Wherein the FRP pipe to concrete effect of contraction can Effective Raise the compressive strength of inner light weight concrete construction, and the transverse reinforcement that the member cross section arranges or FRP stiffening rib can guarantee the collaborative work ability between light weight concrete construction and FRP pipe, strengthen the stress performance of FRP pipe; In addition, FRP manages the cement sand bed of outer spraying, has improved the fire resistance of FRP material; And anti-seismic performance of the present utility model is good, not only can be used for building structure, more can be used in the large-span structures such as bridge.The utility model has significant progress technically, and has obvious good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of manual, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the schematic diagram of the FRP pipe light weight concrete construction combined member of the utility model one preferred embodiment.
Fig. 2 is the schematic diagram of the FRP square tube light weight concrete construction combined member of the utility model one preferred embodiment.
Fig. 3 is the schematic diagram of the FRP square tube light weight concrete construction combined member of another preferred embodiment of the utility model.
The specific embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its specific embodiment of FRP pipe light weight concrete construction combined member, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by the specific embodiment, should be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, the utility model is limited.
See also Fig. 1 to shown in Figure 3, Fig. 1 is the schematic diagram of the FRP pipe light weight concrete construction combined member of the utility model one preferred embodiment.Fig. 2 is the schematic diagram of the FRP square tube light weight concrete construction combined member of the utility model one preferred embodiment.Fig. 3 is the schematic diagram of the FRP square tube light weight concrete construction combined member of another preferred embodiment of the utility model.FRP pipe light weight concrete construction combined member of the present utility model comprises: light weight concrete construction 1, FRP pipe 2 and cement sand bed 3.Wherein FRP pipe 2 is arranged at the outside of light weight concrete construction 1, and cement sand bed 3 is covered on the surface that FRP manages 2 outsides.
FRP pipe light weight concrete construction combined member of the present utility model is solid construction, and light weight concrete construction 1 is the hollow region that is full of in the FRP pipe 2.As shown in Figure 1 to Figure 3, FRP pipe 2 of the present utility model can be round tube or box section.In the utility model, be sprayed on the fire resistance that cement sand bed 3 that FRP manages 2 outsides can reinforcement.
According to the actual loading situation, the utility model can arrange in the cross section of member transverse reinforcement 4, to strengthen the collaborative work ability of 2 of light weight concrete construction 1 and FRP pipes, strengthens the stress performance of FRP pipe.To shown in Figure 2, transverse reinforcement 4 is that the cross section of running through member is fixedly arranged on the FRP pipe 2 such as Fig. 1.Preferably, transverse reinforcement 4 can be to be fixed on the FRP pipe 2 by a bolt 5 of managing 2 outsides at FRP and be arranged at respectively its two ends.
As shown in Figure 3, the utility model also can not arrange transverse reinforcement 4, and the stiffening rib of protrusion is set by the surface of managing 2 inboards at FRP, strengthen the local stability of FRP pipe 2, and the contact area of increase FRP pipe 2 and inner light weight concrete construction 1, thereby strengthen the collaborative work ability of 1 of FRP pipe 2 and light weight concrete construction, guarantee the stress performance of FRP pipe 2.Wherein stiffening rib can be and the FRP pipe 2 FRP stiffening ribs 6 that are structure as a whole.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art are not within breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. a FRP pipe light weight concrete construction combined member is characterized in that it comprises: light weight concrete construction and the FRP pipe that is arranged at the described light weight concrete construction outside.
2. FRP pipe light weight concrete construction combined member according to claim 1 is characterized in that wherein said FPR pipe is round tube or box section.
3. FRP pipe light weight concrete construction combined member according to claim 1 is characterized in that wherein said light weight concrete construction is full of the hollow region in the described FRP pipe.
4. FRP pipe light weight concrete construction combined member according to claim 1 is characterized in that wherein being coated with one deck cement sand bed on the surface in the described FRP pipe outside.
5. the described FRP pipe of arbitrary claim light weight concrete construction combined member in 4 according to claim 1, it is characterized in that wherein being provided with transverse reinforcement in the cross section of described member, and described transverse reinforcement is that the cross section of running through described member is fixedly arranged on the described FRP pipe.
6. FRP pipe light weight concrete construction combined member according to claim 5 is characterized in that wherein said transverse reinforcement is to be fixed on the described FRP pipe by a nut that is arranged at respectively its two ends in the described FRP pipe outside.
7. the described FRP pipe of arbitrary claim light weight concrete construction combined member in 4 according to claim 1 is characterized in that wherein being provided with on the inboard surface of described FRP pipe the stiffening rib of protrusion.
8. FRP pipe light weight concrete construction combined member according to claim 7 is characterized in that wherein said stiffening rib is the FRP stiffening rib that is structure as a whole with described FRP pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220052860 CN202831378U (en) | 2012-02-17 | 2012-02-17 | Lightweight concrete combined member for FRP (fiber reinforce plastic) pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220052860 CN202831378U (en) | 2012-02-17 | 2012-02-17 | Lightweight concrete combined member for FRP (fiber reinforce plastic) pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202831378U true CN202831378U (en) | 2013-03-27 |
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ID=47943122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220052860 Expired - Fee Related CN202831378U (en) | 2012-02-17 | 2012-02-17 | Lightweight concrete combined member for FRP (fiber reinforce plastic) pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202831378U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453092A (en) * | 2014-12-02 | 2015-03-25 | 深圳大学 | Novel FRP pipe-lightweight concrete-structural steel combined member |
| CN104912259A (en) * | 2015-06-23 | 2015-09-16 | 湖南科技大学 | FRP pipe with ribs and component |
| CN108331257A (en) * | 2018-01-19 | 2018-07-27 | 淮阴工学院 | A kind of FRP pipe concrete coupled columns and preparation method thereof with reinforcing rib |
-
2012
- 2012-02-17 CN CN 201220052860 patent/CN202831378U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453092A (en) * | 2014-12-02 | 2015-03-25 | 深圳大学 | Novel FRP pipe-lightweight concrete-structural steel combined member |
| CN104912259A (en) * | 2015-06-23 | 2015-09-16 | 湖南科技大学 | FRP pipe with ribs and component |
| CN104912259B (en) * | 2015-06-23 | 2017-03-22 | 湖南科技大学 | FRP pipe with ribs and component |
| CN108331257A (en) * | 2018-01-19 | 2018-07-27 | 淮阴工学院 | A kind of FRP pipe concrete coupled columns and preparation method thereof with reinforcing rib |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150217 |
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| EXPY | Termination of patent right or utility model |