CN204418017U - Highway bridge deck paving ultrathin overlay repair structure - Google Patents
Highway bridge deck paving ultrathin overlay repair structure Download PDFInfo
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- CN204418017U CN204418017U CN201420803153.5U CN201420803153U CN204418017U CN 204418017 U CN204418017 U CN 204418017U CN 201420803153 U CN201420803153 U CN 201420803153U CN 204418017 U CN204418017 U CN 204418017U
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Abstract
The utility model relates to a kind of highway bridge deck paving ultrathin overlay repair structure, it is characterized in that, original deck expansion joint shaped steel is welded with angle steel, and between two angle steel filled bitumen sand, the original bridge deck surfaces of original deck expansion joint shaped steel side is implanted with perpendicular muscle, between angle steel and perpendicular muscle, be welded with steel bar, the original bridge deck surfaces of described steel bar side is laid with thin reinforced mesh, the thick superthin concrete layer of 3cm all built by described steel mesh reinforcement and steel bar.The utility model, in original bridge floor bar planting, ensure that the globality of new bridge floor and original bridge floor; It carries out reequiping the new stretching device of formation in contracting place of original bridge floor, and new bridge floor and original bridge floor are jointly stretched under variations in temperature; It overlays lightweight aggregate haydite fibrous concrete on original bridge floor, effectively controls the increase of bridge dead load, and mixing of fiber improves concrete performance; It, at shrinkage joint and Abutment making high tenacity concrete, effectively can resist the larger impact force that these region vehicular loads cause, and improves the life-span of deck paving.This novel deck paving ultrathin overlay repair structure effectively improves load carrying capacity of bridge and rigidity under the reparation of middle-small span beam bridge floor does not increase excessive dead load situation.
Description
Technical field
The utility model relates to a kind of deck paving and overlays reconstruction technology, especially a kind of highway bridge deck paving ultrathin overlay repair structure.
Background technology
Deck paving refers to the overcoat of making on bridge deck, is the important component part of bridge construction, its role is to prevent wheel from directly wearing away carriageway plate, and protection girder from the erosion of rainwater and other hazardous substances, and plays the effect of diffusion load.The quality of deck paving quality and useful life longevity will directly have influence on ride quality and the useful life longevity of automobile.
In recent years, along with the increase, particularly overloading of the traffic volume and heavy vehicle are serious, there is some comparatively general diseases in deck paving, and the principal mode of concrete bridge deck pavement layer infringement has Crack failure, deformed damaged, Seam failure etc.And the common road paving bridge floor built in early days, be subject to this type of infringement comparatively serious, some has had influence on the normal use of bridge, compromises the application life of bridge, increases the fund of bridge input by maintenance, maintenance; In addition, the destroying infection of deck paving has arrived its planeness, and then exacerbates the destruction of other ancillary facilities of floor system, as aggravated the destruction of bridge expanssion joint.This type of is mated formation, must process in time.
The existing processing mode for the heavy damage of common road bridge pave-load layer generally has two kinds:
(1) rebuild
Mated formation by former bridge and girder is all changed, this kind mode construction period is longer, cost is large, suspends traffic in addition, directly affect transport services quality because of the reconstruction of bridge;
(2) reconstruction is overlayed
The material that existing pave-load layer overlays has bituminous concrete, SMA or pouring asphalt.Paving Bituminous Concrete, increases the dead load of pave-load layer, and for the early stage bridge built, its girder is through use for many years, and the dead load that can bear is limited, and it is logical that this kind of mode may not be gone; And SMA and pouring asphalt cost are comparatively greatly, higher to construction process requirement, be not easy in the area that Mechanization Level is low use.
By seeing above, no matter be that reconstruction or existing bridge floor overlay reconstruction mode have its drawback.In addition, the mode more than by overlaying reconstruction may not necessarily significantly improve the quality of deck paving, extends its application life.
Utility model content
In order to the common road bridge serious for deck paving disease carries out cost-effective reconstruction, technical problem to be solved in the utility model is to provide a kind of common road beam bridge deck paving ultra-thin overlay reconstruction structure, the problem suspended traffic when solving reconstruction deck paving, effectively control reconstruction cost, and by this kind of structure to prolong pave-load layer application life.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
The utility model highway bridge deck paving ultrathin overlay repair structure, it is characterized in that, original deck expansion joint steel plate is welded with angle steel, filled bitumen sand between two angle steel, the original bridge deck surfaces of original deck expansion joint steel plate side is implanted with perpendicular muscle, between angle steel and perpendicular muscle, be welded with steel bar, the original bridge deck surfaces of described steel bar side is laid with thin reinforced mesh, the thick superthin concrete layer of 3cm all built by described steel mesh reinforcement and steel bar.
Further, in the asphalt material of filling, tagger is provided with.
Further, namely the steel bar between angle steel and perpendicular muscle is welded with one every 0.3m, is fixed angle steel with this.
Further, described thin reinforced mesh is of a size of 10cm × 10cm, is fixed on the high cushion block of 1cm, makes its mesh sheet apart from original bridge floor 1cm.
Further, in the thick superthin concrete layer of the 3cm built, being positioned at shrinkage joint and abutment, other to open 1m long be high tenacity concrete, and what all the other were built is lightweight aggregate haydite fibrous concrete.
Further, described lightweight aggregate haydite fibrous concrete is only made up of fines, and is mixed with vinal.
Further, described haydite concrete apparent density is 1800kg/m
3.
The construction sequence that the utility model highway bridge deck paving ultrathin overlay is repaired: (1) carries out roughening, bar planting to original bridge floor; (2) repacking of original deck expansion joint, forms new stretching device; (3) on original bridge floor, thin reinforced mesh is arranged; (4) the deck paving overlay that 3cm is thick is built; (5) after deck paving overlay has been built, adopt warm water health, reduce bridge floor warping stress.
Further, in step (2), on original deck expansion joint shaped steel, each welding angle steel, forms overlay shrinkage joint.
Further, be filled with bituminous mixture in described overlay shrinkage joint, and fix with tagger.
Further, described angle steel is by being fixed with the mode of welding steel bar between bar planting.
Further, described steel bar is of a size of 40cm × 1.5cm × 0.5cm, welds one along angle steel every 0.3m.
Further, in step (3), arrange that the high cushion block of 1cm is on original bridge floor, and the thin reinforced mesh of prefabricated 10cm × 10cm is placed on cushion block.
Further, in step (4), respectively build the high tenacity concrete pavement that 1m is long at shrinkage joint place and Abutment, all the other are built lightweight aggregate haydite fibrous concrete and mat formation.
Compared with prior art, the utility model has following beneficial effect: this beam bridge class deck paving ultra-thin overlay reconstruction construction technology is simple, and its bar planting on original bridge floor, ensure that the globality of new bridge floor and original bridge floor; It carries out reequiping the new stretching device of formation to original deck expansion joint, and new bridge floor and original bridge floor are jointly stretched under variations in temperature; It overlays lightweight aggregate haydite fibrous concrete on original bridge floor, effectively controls the increase of bridge dead load, and improves concrete performance with fiber; It, at shrinkage joint and Abutment making high tenacity concrete, effectively can resist the larger impact force that these region vehicular loads cause, and improves the life-span of deck paving, and also effectively improves load carrying capacity of bridge and rigidity for Short/Medium Span Bridge.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the utility model bridge deck structure longitudinal plan;
Fig. 2 is the utility model bridge deck structure plan view;
In figure: 1-ultra-thin haydite fibrous concrete pave-load layer, the ultra-thin high tenacity concrete pavement layer of 2-, 3-pitch or bituminous mixture, 4-angle steel, 5-steel bar, 6-erects muscle, the original deck expansion joint shaped steel of 7-, the original deck paving of 8-.
Detailed description of the invention
The utility model highway bridge deck paving ultrathin overlay repair structure, original deck expansion joint steel plate 7 is welded with angle steel 4, at the back side filled bitumen sand 3 of two angle steel 4, the original bridge deck surfaces of original deck expansion joint steel plate side is implanted with perpendicular muscle 6, steel bar 5 is welded with between angle steel 4 and perpendicular muscle 6, the original bridge deck surfaces of described steel bar side is laid with thin reinforced mesh, the thick superthin concrete layer of 3cm all built by described steel mesh reinforcement and steel bar, 3cm thick superthin concrete layer includes ultra-thin haydite fibrous concrete pave-load layer 1 and ultra-thin high tenacity concrete pavement layer 2.
Tagger is provided with in the asphalt material of filling, namely steel bar between angle steel and perpendicular muscle is welded with one every 0.3m, is fixed angle steel with this, and described thin reinforced mesh is of a size of 10cm × 10cm, be fixed on the high cushion block of 1cm, make its mesh sheet apart from original bridge floor 1cm; Described lightweight aggregate haydite fibrous concrete is only made up of fines, and is mixed with vinal.
Pitch used is modification high-viscosity high-elasticity asphalt, bituminous mixture has good water proofing property and anti-fatigue performance, effectively can prevent rainwater from infiltrating the original bridge floor of corrosion or girder by shrinkage joint and bearing the repeated action of vehicular load, improve the durability at shrinkage joint.
Ultra-thin haydite fibrous concrete pave-load layer 1 is only made up of fines, and is mixed with PVA fiber (vinal).In length of time morning, due to mixing of fiber, reduce the crack of material internal, slow down scattering and disappearing of moisture, reduce shrinkage strain; Phase under arms, its shock resistance can resist the larger vehicular impact effect be subject to around shrinkage joint.
Haydite concrete apparent density is 1800kg/m
3left and right, effectively can control the increase of bridge floor dead load, and in addition, haydite concrete also has impervious and abrasion resistance preferably, and mixing by PVA fiber, improve its early stage tensile strength and cracking resistance.
As shown in Figure 1 and 2, a kind of common road beam bridge deck paving overlays reconstruction structure, comprises the following steps: (1) carries out roughening to former bridge floor, original bridge floor 8 carries out bar planting by certain way; (2) by welding angle steel 4 on original deck expansion joint shaped steel 7, forming new stretching device, filled bitumen compound 3 in shrinkage joint, welding steel bar 5 at new leg steel 4 with between bar planting 6, fixed angle steel 4; (3) on original bridge floor 8, thin reinforced mesh is arranged; (4) bridge pier and Abutment build ultra-thin high tenacity concrete pavement layer 2, and all the other places build ultra-thin lightweight aggregate haydite fibrous concrete overlay 1; (5) watering health, reduces the early stage warping stress of deck paving.
In the present embodiment, deck paving reconstruction is half range construction, to ensure the current of vehicle, in step (1), the bar planting of both sides, shrinkage joint is arranged by the mode apart from the distance of shrinkage joint 0.3m along direction across bridge every 0.3m bar planting, remainder bar planting is arranged every the mode of 0.5m to, direction across bridge by along vertical bridge, and described bar planting top should exceed original bridge floor 2cm.In step (2), form new shrinkage joint by welding angle steel on original deck expansion joint steel plate, and weld a steel bar along angle steel every 0.3m, described steel bar opposite side welds with the bar planting of both sides, shrinkage joint, with fixing new leg steel, whole process should ensure welding quality.In step (2), steel bar is of a size of 40cm × 1.5cm × 0.5cm, and during described steel bar welding, top is concordant with bar planting top.In step (3), thin reinforced mesh is of a size of 10cm × 10cm, and described thin reinforced mesh is fixed on the cushion block of high 1cm.In step (4), the ultra-thin high tenacity concrete pavement layer 2 of overlay is 3cm with the thickness of ultra-thin lightweight aggregate haydite fibrous concrete pave-load layer 1, and described overlay should vibrate fully after making.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (7)
1. a highway bridge deck paving ultrathin overlay repair structure, it is characterized in that, original deck expansion joint shaped steel is welded with angle steel, filled bitumen sand between two angle steel, the original bridge deck surfaces of original deck expansion joint steel plate side is implanted with perpendicular muscle, between angle steel and perpendicular muscle, be welded with steel bar, the original bridge deck surfaces of described steel bar side is laid with thin reinforced mesh, the thick superthin concrete layer of 3cm all built by described steel mesh reinforcement and steel bar.
2. highway bridge deck paving ultrathin overlay repair structure according to claim 1, is characterized in that, in the asphalt material of filling, be provided with tagger.
3. highway bridge deck paving ultrathin overlay repair structure according to claim 1, it is characterized in that, namely the steel bar between angle steel and perpendicular muscle is welded with one every 0.3m, is fixed angle steel with this.
4. highway bridge deck paving ultrathin overlay repair structure according to claim 1, it is characterized in that, described thin reinforced mesh is of a size of 10cm × 10cm, is fixed on the high cushion block of 1cm, makes its mesh sheet apart from original bridge floor 1cm.
5. highway bridge deck paving ultrathin overlay repair structure according to claim 1, it is characterized in that: in the thick superthin concrete layer of the 3cm built, being positioned at shrinkage joint and abutment, other to open 1m long be high tenacity concrete, and what all the other were built is lightweight aggregate haydite fibrous concrete.
6. highway bridge deck paving ultrathin overlay repair structure according to claim 1, is characterized in that: described lightweight aggregate haydite fibrous concrete is only made up of fines, and is mixed with vinal.
7. highway bridge deck paving ultrathin overlay repair structure according to claim 1, is characterized in that: described haydite concrete apparent density is 1800kg/m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803153.5U CN204418017U (en) | 2014-12-18 | 2014-12-18 | Highway bridge deck paving ultrathin overlay repair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803153.5U CN204418017U (en) | 2014-12-18 | 2014-12-18 | Highway bridge deck paving ultrathin overlay repair structure |
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|---|---|
| CN204418017U true CN204418017U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420803153.5U Expired - Fee Related CN204418017U (en) | 2014-12-18 | 2014-12-18 | Highway bridge deck paving ultrathin overlay repair structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638289A (en) * | 2016-10-26 | 2017-05-10 | 上海市政工程设计研究总院（集团）有限公司 | Steel bridge deck expansion joint concrete paving structure and construction method thereof |
| CN109468943A (en) * | 2018-10-17 | 2019-03-15 | 华南理工大学 | The anti-ejection system of vertical prestressed reinforcement and its construction method with function of seismic resistance |
| CN113622293A (en) * | 2021-07-30 | 2021-11-09 | 中铁十九局集团第五工程有限公司 | Bridge expansion joint drainage system and installation method thereof |
-
2014
- 2014-12-18 CN CN201420803153.5U patent/CN204418017U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638289A (en) * | 2016-10-26 | 2017-05-10 | 上海市政工程设计研究总院（集团）有限公司 | Steel bridge deck expansion joint concrete paving structure and construction method thereof |
| CN109468943A (en) * | 2018-10-17 | 2019-03-15 | 华南理工大学 | The anti-ejection system of vertical prestressed reinforcement and its construction method with function of seismic resistance |
| CN113622293A (en) * | 2021-07-30 | 2021-11-09 | 中铁十九局集团第五工程有限公司 | Bridge expansion joint drainage system and installation method thereof |
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| 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: 20150624 Termination date: 20151218 |
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| EXPY | Termination of patent right or utility model |