CN202849926U - Assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure - Google Patents
Assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure Download PDFInfo
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- CN202849926U CN202849926U CN 201220402614 CN201220402614U CN202849926U CN 202849926 U CN202849926 U CN 202849926U CN 201220402614 CN201220402614 CN 201220402614 CN 201220402614 U CN201220402614 U CN 201220402614U CN 202849926 U CN202849926 U CN 202849926U
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- concrete
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- steel tube
- assembly type
- steel tubes
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Abstract
The utility model discloses an assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure and belongs to the technical field of bridge construction structure. According to the structure, assembly type steel tubes are arranged outside a prior steel rib concrete structure. Sections of each assembly type steel tube are connected as a whole through flanges connected with bolts to form outer packing steel tubes. Concrete is filled in the steel tubes. FRP clothes are coated outside the steel tubes. Due to the fact that the assembly type steel tubes and concrete are used as a main structure for reinforcement, the section form is stretched and integrality of the structure is strong. Under the condition that the bearing capacity and rigidity of the prior section is guaranteed, usage of the concrete is reduced obviously and the self weight of a component is reduced. The structure is simple and reliable in process and capable of accelerating construction speed, reducing construction time and recovering a structure using function as soon as possible. In addition, according to the fact that the FRP clothes coated outside the steel tubes are good in decay resistance performance, decay resistance of the structure can be achieved thoroughly, maintaining cost is reduced and service life of the structure is prolonged.
Description
Technical field
The utility model belongs to the bridge engineering technical field of structures, is specifically related to a kind of assembling outsourcing FRP-steel tube-concrete ruggedized construction.
Background technology
Under natural environment, because the factors such as carbonization, Chloride Attack, alkali-aggregate reaction, erosion can occur in reinforced concrete surface, thereby weaken its structural section, this problem seems more outstanding for the hollow thin-wall reinforced concrete structure, therefore need to reinforce the old reinforced concrete structure that weathers.When said structure is reinforced reparation, except the requirement that guarantees original bearing capacity and stiffness, also must satisfy the requirement of rapid construction; And the structure of reinforcing after repairing also will reach corrosion resistant requirement.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of assembling outsourcing FRP-steel tube-concrete ruggedized construction.
A kind of assembling outsourcing FRP-steel tube-concrete ruggedized construction, this ruggedized construction is for to reinforce reparation to old reinforced concrete structure, and it comprises assembled steel tube 5, concrete eight and FRP cloth 9; At old reinforced concrete structure outsourcing assembled steel tube 5, by bolt 7 mounting flanges 6 that every joint assembled steel tube 5 connections are in aggregates, form outside steel pipe; Then fill concrete 8 in steel pipe is at last at steel pipe outer wrapping FRP cloth 9.
Described assembled steel tube is welded steel pipe, seamless steel pipe or cold-bent pipe.
Described steel pipe concrete filled is high-strength concrete or self-compacting concrete.
The beneficial effects of the utility model are: with the agent structure of bag assembly concrete-filled steel tube as reinforcing, its section form is carried out, and structural integrity is strong, can be in the situation that guarantees original section bearing capacity and rigidity, reduce significantly concrete consumption, alleviate member dead weight; Moreover the bag assembly concrete-filled steel tube is simple and reliable process not only, and can accelerate speed of application, the reduction of erection time, recovers as early as possible structure and uses function.In addition, wrap up in FRP cloth outward owing to its good decay resistance, can thoroughly solve the anticorrosive problem of structure, reduce maintenance cost, improve the service life of structure.
Description of drawings
Fig. 1 is the elevation that needs the reinforced concrete hollow thin wall construction of reinforcing;
Fig. 2 is the sectional drawing of A-A section among Fig. 1;
Fig. 3 is the elevation of ruggedized construction;
Fig. 4 is the sectional drawing of A-A section among Fig. 3;
Fig. 5 is the sectional drawing of B-B section among Fig. 3;
More than among each figure: the reinforced concrete hollow thin wall construction that 1-need reinforce, the former concrete of 2-, 3-longitudinal reinforcement, 4-stirrup, 5-assembled steel tube, 6-flange, 7-bolt, 8-concrete, 9-FRP cloth.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, 2,1 for needing the reinforced concrete hollow thin wall construction of reinforcing, and 2 is old former concrete, and 3 is old longitudinal reinforcement, and 4 is old stirrup.
When reinforcing, the reinforced concrete hollow thin wall construction 1 outsourcing assembled steel tube 5 of at first reinforcing at need, by bolt 7 mounting flanges 6 that every joint assembled steel tube 5 connections are in aggregates, form outside steel pipe; Then fill concrete 8 in steel pipe is at last at steel pipe outer wrapping FRP cloth 9, shown in Fig. 3-5.
Claims (3)
1. assembling outsourcing FRP-steel tube-concrete ruggedized construction, this ruggedized construction is characterized in that for old reinforced concrete structure is reinforced reparation it comprises assembled steel tube (5), concrete (8) and FRP cloth (9); At old reinforced concrete structure outsourcing assembled steel tube (5), by bolt (7) mounting flange (6) that every joint assembled steel tube (5) connection is in aggregates, form outside steel pipe; Then fill concrete (8) in steel pipe is at last at steel pipe outer wrapping FRP cloth (9).
2. a kind of assembling outsourcing FRP-steel tube-concrete ruggedized construction shown in according to claim 1 is characterized in that described assembled steel tube is welded steel pipe, seamless steel pipe or cold-bent pipe.
3. a kind of assembling outsourcing FRP-steel tube-concrete ruggedized construction shown in according to claim 1 is characterized in that described steel pipe concrete filled is high-strength concrete or self-compacting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402614 CN202849926U (en) | 2012-08-14 | 2012-08-14 | Assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402614 CN202849926U (en) | 2012-08-14 | 2012-08-14 | Assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202849926U true CN202849926U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402614 Expired - Lifetime CN202849926U (en) | 2012-08-14 | 2012-08-14 | Assembly type outer packing fiber reinforce plastic (FRP)-steel tube-concrete reinforced structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202849926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808384A (en) * | 2012-08-14 | 2012-12-05 | 清华大学 | Concrete reinforced structure adopting assembled FRP (Fiber Reinforced Plastic)-wrapped steel pipe |
| CN112554045A (en) * | 2020-12-22 | 2021-03-26 | 沈阳建筑大学 | Novel corrosion-resistant FRP (fiber reinforced plastic) -steel pipe concrete combined pier applied to offshore building |
-
2012
- 2012-08-14 CN CN 201220402614 patent/CN202849926U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808384A (en) * | 2012-08-14 | 2012-12-05 | 清华大学 | Concrete reinforced structure adopting assembled FRP (Fiber Reinforced Plastic)-wrapped steel pipe |
| CN112554045A (en) * | 2020-12-22 | 2021-03-26 | 沈阳建筑大学 | Novel corrosion-resistant FRP (fiber reinforced plastic) -steel pipe concrete combined pier applied to offshore building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |