CN204174544U - A kind of bridge strengthening structure based on FRP material - Google Patents
A kind of bridge strengthening structure based on FRP material Download PDFInfo
- Publication number
- CN204174544U CN204174544U CN201420637574.5U CN201420637574U CN204174544U CN 204174544 U CN204174544 U CN 204174544U CN 201420637574 U CN201420637574 U CN 201420637574U CN 204174544 U CN204174544 U CN 204174544U
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- China
- Prior art keywords
- frp
- bridge
- panel
- structure based
- strengthening structure
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- 238000005728 strengthening Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 title claims description 16
- 210000003205 muscle Anatomy 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 11
- 238000007596 consolidation process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a kind of bridge strengthening structure, its offering groove across set direction and being embedded with FRP muscle at bridge panel, the FRP sheet of strip is adhesive with in the longitudinal direction (with across the crossing direction of set direction) of bridge panel, ruggedized construction of the present utility model adopts twocouese reinforcing mode, matching panel structure is two-way by curved or the shear behavior, improves consolidation effect.In addition, adopt FRP muscle as girth member at bridge panel across set direction, FRP muscle can be fixed with adjacent structure (brace summer) easily, be conducive to the stability and the height that improve ruggedized construction, and the FRP sheet of strip is adopted at horizontal direction, then can avoid fluting demand, avoid the problem of transversal slotting.
Description
Technical field
The utility model relates to Technology Bridge Strengthening field, particularly a kind of bridge strengthening structure based on FRP material.
Background technology
In bridge engineering construction, no matter be concrete structure, steel work or steel-concrete combined structure, bridge panel is generally reinforced concrete slab structure.In the past in 20 years, these bridges all expose some problems, most serious of all the corrosion of reinforcing bar or steel and the structure premature degradation caused or insufficiency of function.Bridge panel is because protective layer thickness is less, deicer salts directly acts on its surface and easily causes the reasons such as cracking because bearing traffic loading for a long time, and corrosion of steel bar problem is particularly serious.Therefore need to carry out structural strengthening reinforcement to the bridge panel of structure function deficiency.
In recent years, FRP(Fiber Reinforced Plastics, fibre-reinforced plastics) material owing to having corrosion resistant, lightweight, high-strength, the feature such as convenient of constructing be widely used in concrete structure and other structural strengthening fields.At present, the research of FRP reinforced steel concrete structure is mainly concentrated on to the reinforcing technique of externally bonded FRP reinforcement sheet material, various countries have also released one after another corresponding specification.In FRP reinforced concrete structure, FRP-concrete binding interface is a weak link, interface binding intensity often determines effective stress when bearing capacity (structure reach capacity the FRP stress that reaches) of FRP, thus determines the efficiency that FRP reinforces and economy.By pasting the analysis of reinforced concrete bridge deck project situation outward to FRP in the past, there is following problem in this reinforcing technique in the impaired bridge deck structure of reinforcement:
(1) along with day by day heavy communications and transportation load, the damaged area of reinforced concrete bridge deck plate is comparatively large, and traditional FRP pastes reinforcing mode outward and result in higher construction and Master Cost, constrains this and has applying of increased durability energy material;
(2) externally bonded FRP reinforcement sheet material reinforcing technique is when bridge floor is applied, and be easily worn and the unexpected load such as shock, result in the secondary reinforcing position impaired, thus second consolidation takes place frequently;
(3) externally bonded FRP reinforcement sheet material is not easy to and adjacent members anchoring, is difficult to the stability and the rigidity that improve reinforcing.
(4) if adopt embedded reinforcement when reinforcing impaired panel, carry out panel construction longitudinal direction (direction vertical with span direction) reinforce owing to needing slot and not being suitable for;
(5) due to panel construction (as tyre load) when bearing Local Loads, panel construction is generally two-way and is subject to curved or is cut, and current reinforcing mode is all unidirectional reinforcing, is difficult to satisfy the demands.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of bridge that can mate two-way by feature that is curved or that cut, thus improves the bridge strengthening structure of consolidation effect.
The purpose of this utility model is achieved through the following technical solutions:
Provide a kind of bridge strengthening structure based on FRP material, comprise brace summer and be located at the bridge panel to be reinforced between brace summer, the bottom surface of described bridge panel offers groove along bridge panel across set direction, be embedded with FRP muscle in described groove, the bottom surface of described bridge panel is adhesive with the FRP sheet of strip along the direction crossing with described groove.
Preferably, described FRP sheet and described texturearunaperpendicular are arranged.
Preferably, the end anchorage of described FRP muscle is in described brace summer.
Preferably, be also filled with fixing glue in described groove to be fixed in groove to make described FRP muscle.
Preferably, the degree of depth of described groove and width are 1.5 times of the diameter of described FRP muscle.
The beneficial effects of the utility model: the utility model provides a kind of bridge strengthening structure, its offering groove across set direction and being embedded with FRP muscle at bridge panel, the FRP sheet of strip is adhesive with in the longitudinal direction (with across the crossing direction of set direction) of bridge panel, ruggedized construction of the present utility model adopts twocouese reinforcing mode, matching panel structure is two-way by curved or the shear behavior, improves consolidation effect.In addition, adopt FRP muscle as girth member at bridge panel across set direction, FRP muscle can be fixed with adjacent structure (brace summer) easily, be conducive to the stability and the height that improve ruggedized construction, and the FRP sheet of strip is adopted at horizontal direction, then can avoid fluting demand, avoid the problem of transversal slotting.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of a kind of bridge strengthening structure based on FRP material of the utility model.
Fig. 2 is the arrangement schematic diagram of FRP muscle of the present utility model and FRP sheet.
Include in FIG:
1---brace summer, 2---bridge panel, 3---groove, 4---FRP muscle, 5---fixing glue, 6---FRP sheet.
Detailed description of the invention
With the following Examples the utility model is further described.
The detailed description of the invention of a kind of bridge strengthening structure based on FRP material of the utility model, as depicted in figs. 1 and 2, comprise brace summer 1 and be located at the bridge panel 2 to be reinforced between brace summer 1, the bottom surface of bridge panel 2 along bridge panel 2 across set direction (Fig. 1, transversely direction in Fig. 2) offer groove 3, FRP muscle 4 is embedded with in groove 3, the degree of depth of groove 3 and width are 1.5 times of the diameter of described FRP muscle 4, also being filled with fixing glue 5 in groove 3 is fixed in groove 3 to make described FRP muscle 4, the end anchorage of FRP muscle 4 is in described brace summer 1, the bottom surface of bridge panel 2 along the longitudinal direction (with across the crossing direction of set direction, with drawing vertical direction in Fig. 1, along the longitudinal direction of drawing in Fig. 2) be also adhesive with the FRP sheet 6 of strip.
Above-mentioned bridge strengthening structure offering groove 3 across set direction and being embedded with FRP muscle 4 at bridge panel 2, the FRP sheet 6 of strip is adhesive with in the longitudinal direction (with across the crossing direction of set direction) of bridge panel 2, ruggedized construction of the present utility model adopts twocouese reinforcing mode, matching panel structure is two-way by curved or the shear behavior, improves consolidation effect.In addition, adopt FRP muscle 4 as girth member at bridge panel 2 across set direction, FRP muscle 4 can be fixed with adjacent structure (brace summer 1) easily, be conducive to the stability and the height that improve ruggedized construction, and the FRP sheet 6 of strip is adopted at horizontal direction, then can avoid fluting demand, avoid the problem of transversal slotting.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection domain; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (5)
1. the bridge strengthening structure based on FRP material, comprise brace summer and be located at the bridge panel to be reinforced between brace summer, it is characterized in that: the bottom surface of described bridge panel offers groove along bridge panel across set direction, be embedded with FRP muscle in described groove, the bottom surface of described bridge panel is adhesive with the FRP sheet of strip along the direction crossing with described groove.
2. a kind of bridge strengthening structure based on FRP material as claimed in claim 1, is characterized in that: described FRP sheet and described texturearunaperpendicular are arranged.
3. a kind of bridge strengthening structure based on FRP material as claimed in claim 1, is characterized in that: the end anchorage of described FRP muscle is in described brace summer.
4. a kind of bridge strengthening structure based on FRP material as claimed in claim 1, is characterized in that: be also filled with fixing glue in described groove and be fixed in groove to make described FRP muscle.
5. a kind of bridge strengthening structure based on FRP material as claimed in claim 1, is characterized in that: the degree of depth of described groove and width are 1.5 times of the diameter of described FRP muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637574.5U CN204174544U (en) | 2014-10-30 | 2014-10-30 | A kind of bridge strengthening structure based on FRP material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637574.5U CN204174544U (en) | 2014-10-30 | 2014-10-30 | A kind of bridge strengthening structure based on FRP material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204174544U true CN204174544U (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420637574.5U Expired - Lifetime CN204174544U (en) | 2014-10-30 | 2014-10-30 | A kind of bridge strengthening structure based on FRP material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204174544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041983A (en) * | 2019-12-19 | 2020-04-21 | 广东工业大学 | Composite rib-composite material grid seawater sea sand bridge deck |
-
2014
- 2014-10-30 CN CN201420637574.5U patent/CN204174544U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041983A (en) * | 2019-12-19 | 2020-04-21 | 广东工业大学 | Composite rib-composite material grid seawater sea sand bridge deck |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |