CN103898841A - Hollow slab bridge reinforcing method - Google Patents
Hollow slab bridge reinforcing method Download PDFInfo
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- CN103898841A CN103898841A CN201410164542.2A CN201410164542A CN103898841A CN 103898841 A CN103898841 A CN 103898841A CN 201410164542 A CN201410164542 A CN 201410164542A CN 103898841 A CN103898841 A CN 103898841A
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Abstract
A hollow slab bridge reinforcing method is characterized by comprising the following steps that a, a pavement and a hinge joint of a bridge are cleared; b, a steel board is inserted into the hinge joint, and steel components which are fixedly connected to the top of the steel board and horizontally extend towards two sides are fixedly connected with exposed ends of reinforcing steel bars or screws embedded in bridge hollowing boards on two sides of the hinge joint; c, the exposed end of the steel board extending to the lower end of the hinge joint of the bridge hollow boards is fixedly connected with connection steel boards on the bottom surfaces of the bridge hollow boards on two sides of the hinge joint; d, fine grain grouting materials or other crack pouring materials are pressed or poured into a crack between the hinge joint and the steel board; e, the bridge deck pavement and the road surface structure are restored, and structural reinforcing is completed.
Description
Technical field
The present invention relates to building, field of traffic, relate to specifically a kind of blank board bridge reinforcement means.
Background technology
In bridge construction, precast hollow slab bridge, because batch production degree is high, is easy to the features such as standardized construction and is used widely.But the horizontal continuous damage of destruction, especially blank board bridge that easily causes hollowcore slab due to reasons such as overload or beam slab self design drag deficiencies and form veneer stressed after, the destruction of more easily causing single hollowcore slab.Owing to there being sufficient construction operation space, the disease that base plate bending resistance deficiency tensile failure causes, can realize reinforcing easily.But the destruction that web shearing resistance deficiency causes, due to the feature of assembled Hollow Slab Beam Bridge self, except the convenient reinforcing in side plate web crack, between bridge hollow board, the crack of web is owing to being subject to the restriction of operating space, do not have at present effective reinforcement means and means to repair hollowcore slab web fail in shear crack, for the yet method of not good raising integral anti-shearing intensity of the not enough blank board bridge of shearing resistance.
Crack between two hollowcore slabs of blank board bridge is called " hinge seam ", conventionally only has 1-1.5cm.The conventional particulate formula Concrete Filled in space in the time of bridge construction between hinge seam, this just causes hollowcore slab web to occur that crack cannot find and reinforcement in time.The destruction of hollowcore slab web could be found to base plate by web crack progressing often.Now the destruction of hollowcore slab web has substantially been run through whole beam height, directly causes whole bridge shear strength deficiency.Because hinge seam is very narrow, make affixing steel plate, traditional reinforcement mode such as affixing carbon fabric cannot be implemented.By measures such as stretch-draw prestressing force steel strand or reinforcing bars in hinge seam, because stretch-draw length is shorter, reinforcing bar creep makes pretension reduce gradually or disappear, and cannot obtain stable shear resistance to promote, and often causes reinforcement measure to lose efficacy.
Summary of the invention
Object of the present invention is just in order to provide a kind of for effectively solving blank board bridge shear strength deficiency, and shearing crack reinforces the bridge hollow board reinforcement means that lacks operating space---inlay steel plate reinforcement method (being called for short embedding steel method).
Object of the present invention can realize by following technique measures:
Bridge hollow board reinforcement means of the present invention is realized by following step:
A, cleaning the mating formation and cut with scissors seam of bridge;
B, steel plate is inserted in hinge seam, and the steel member that the level that is fixed in steel plate top is extended to both sides be implanted in reinforcing bar in the bridge hollow board of hinge seam both sides or the exposed junction Joint of screw mandrel;
C, the plate exposure end that extends to bridge hollow board hinge seam lower end is carried out affixed with the junction steel plate that is fixed in hinge seam bridge hollow board bottom surface, both sides;
D, in the gap between hinge seam and steel plate, press or insert particulate grouting material or other gap-grouting materials;
E, recovery deck paving and road structure, complete structural strengthening.
The level that is fixed in steel plate top in the b of step described in the present invention is to be made up of the steel frange plate that is welded on steel plate top to the steel member of both sides extension, described steel frange plate be implanted in screw mandrel in the bridge hollow board of hinge seam both sides or the exposed junction Joint of reinforcing bar, also can between steel frange plate and bridge hollow board, adopt structure glue to carry out bonding simultaneously; And reserved mud jacking hole on described steel frange plate; Grouting method in described steps d is in the gap between hinge seam and steel plate, to be pressed into particulate grouting material or other gap-grouting materials by mud jacking hole reserved on steel frange plate.
The b of step described in the present invention also can adopt following method to realize: the steel member that the described level that is fixed in steel plate top is extended to both sides is to be made up of the anchor pole or the reinforcing bar that are installed in the reserved hole in steel plate top, and described anchor pole or reinforcing bar firmly connect into a stressed entirety with the exposed junction that is implanted in hinge and stitches the reinforcing bar in both sides bridge hollow boards by the mode of welding or colligation or bolt; Grouting method in described steps d is in the gap between hinge seam and steel plate, to be pressed into particulate grouting material or other gap-grouting materials by mud jacking mode.
The steel plate inserting in the b of step described in the present invention in hinge seam is the monoblock steel plate that length is greater than the hollowcore slab reinforcing area length that needs reinforcement.
Mode and the junction steel plate that is fixed in hinge seam bridge hollow board bottom surface, both sides that the plate exposure end that extends to bridge hollow board hinge seam lower end described in the c of step described in the present invention adopts structure glue or bolt or structure glue to be combined with bolt carry out affixed; Between described junction steel plate and bridge hollow board bottom surface, adopt structure glue or be implanted in the screw mandrel of bridge hollow board bottom surface or reinforcing steel bars exposed end carries out affixed or structure glue screw mandrel or reinforcing steel bars exposed end carries out the affixed mode that both are combined with.
Beneficial effect of the present invention is as follows:
The present invention utilizes fine shearing resistance that steel plate has and the premium properties of tensile strength, fill particulate formula grouting material (or other gap-grouting materials) by hinge seam narrow between bridge hollow board steel plate both sides are formed to constraint, make it to be not easy unstability, simultaneously large by steel plate and hollowcore slab are firmly connected to make full use of steel plate shearing resistance tensile strength, the little advantage in cross section realizes supplements or replaces hollowcore slab shear strength, also bridge flexural strength is to a certain degree supplemented simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the invention.
Fig. 2 is Fig. 1 light plate upper end annexation partial enlarged drawing.
Fig. 3 is Fig. 1 light plate lower end annexation partial enlarged drawing.
Fig. 4 is the structural representation of second embodiment of the invention.
Fig. 5 is Fig. 4 light plate upper end annexation partial enlarged drawing.
Fig. 6 is Fig. 4 light plate lower end annexation partial enlarged drawing.
Sequence number in figure: 1, hollowcore slab top board, 2, steel frange plate, 3, screw mandrel (reinforcing bar), 4, structure glue, 5, particulate grouting material, 6, steel plate, 7, bolt, 8, hollowcore slab web, 9, hollowcore slab hollows out district, 10, hollowcore slab base plate, 11, junction steel plate, 12, the ribs of junction steel plate, 13, the preformed hole on steel plate top, 14, implant reinforcing bar, 15, anchor pole.
Detailed description of the invention
The present invention is further described below with reference to embodiment (accompanying drawing):
Embodiment 1
As shown in Figure 1, 2, 3:
A, removing damage mating formation and cutting with scissors seam of bridge;
B, the monoblock steel plate 6 that length is greater than to the hollowcore slab reinforcing area length that needs reinforcement insert in hinge seam, and the level that is welded on steel plate top is passed through to nut Joint to the steel frange plate 2 of both sides extension with the exposed junction that is implanted in the screw mandrel 3 in the bridge hollow board of hinge seam both sides, and it is bonding between steel frange plate and bridge hollow board, to adopt structure glue 4 to carry out; And reserved mud jacking hole on described steel frange plate;
C, adopt structure glue 4 and bolt 7 that the plate exposure end that extends to bridge hollow board hinge seam lower end is carried out affixed with the junction steel plate 11 that is fixed in hinge seam bridge hollow board bottom surface, both sides; The screw mandrel 3 that adopts structure glue between described junction steel plate 11 and bridge hollow board bottom surface and be implanted in bridge hollow board bottom surface carries out affixed;
D, in the gap between hinge seam and steel plate, be pressed into concrete particulate grouting material 5 or other gap-grouting materials by mud jacking hole reserved on steel frange plate, as particulate formula concrete, strength cement-based grouting material etc.;
E, recovery deck paving and road structure, complete structural strengthening.
As shown in Figure 4,5, 6:
A, removing damage mating formation and cutting with scissors seam of bridge;
B, the monoblock steel plate 6 that length is greater than to the hollowcore slab reinforcing area length that needs reinforcement insert in hinge seam, and penetrate anchor pole 15 in reserved hole 13, steel plate top, and anchor pole 15 and the exposed junction that is implanted in the implantation reinforcing bar 14 in the bridge hollow board of hinge seam both sides are firmly connected into a stressed entirety;
C, adopt structure glue 4 and bolt 7 that the plate exposure end that extends to bridge hollow board hinge seam lower end is carried out affixed with the junction steel plate 11 that is fixed in hinge seam bridge hollow board bottom surface, both sides; The screw mandrel 3 that adopts structure glue 4 between described junction steel plate 11 and bridge hollow board bottom surface and be implanted in bridge hollow board bottom surface carries out affixed;
D, in the gap between hinge seam and steel plate, be pressed into concrete particulate grouting material 5 or other gap-grouting materials by mud jacking mode, as particulate formula concrete, strength cement-based grouting material etc.;
E, recovery deck paving and road structure, complete structural strengthening.
Claims (5)
1. a blank board bridge reinforcement means, is characterized in that: described method comprises the steps:
A, cleaning the mating formation and cut with scissors seam of bridge;
B, steel plate is inserted in hinge seam, and the steel member that the level that is fixed in steel plate top is extended to both sides be implanted in reinforcing bar in the bridge hollow board of hinge seam both sides or the exposed junction Joint of screw mandrel;
C, the plate exposure end that extends to bridge hollow board hinge seam lower end is carried out affixed with the junction steel plate that is fixed in hinge seam bridge hollow board bottom surface, both sides;
D, in the gap between hinge seam and steel plate, press or insert particulate grouting material or other gap-grouting materials;
E, recovery deck paving and road structure, complete structural strengthening.
2. bridge hollow board reinforcement means according to claim 1, it is characterized in that: the level that is fixed in steel plate top in described step b is to be made up of the steel frange plate that is welded on steel plate top to the steel member of both sides extension, described steel frange plate be implanted in screw mandrel in the bridge hollow board of hinge seam both sides or the exposed junction Joint of reinforcing bar, also can between steel frange plate and bridge hollow board, adopt structure glue to carry out bonding simultaneously; And reserved mud jacking hole on described steel frange plate; Grouting method in described steps d is in the gap between hinge seam and steel plate, to be pressed into particulate grouting material or other gap-grouting materials by mud jacking hole reserved on steel frange plate.
3. bridge hollow board reinforcement means according to claim 1, it is characterized in that: the steel member that the level that is fixed in steel plate top in described step b is extended to both sides is to be made up of the anchor pole or the reinforcing bar that are installed in the reserved hole in steel plate top, described anchor pole or reinforcing bar firmly connect into a stressed entirety with the exposed junction that is implanted in hinge and stitches the reinforcing bar in the bridge hollow board of both sides by the mode of welding or colligation or bolt; Grouting method in described steps d is in the gap between hinge seam and steel plate, to be pressed into particulate grouting material or other gap-grouting materials by mud jacking mode.
4. bridge hollow board reinforcement means according to claim 1, is characterized in that: the steel plate inserting in described step b in hinge seam is the monoblock steel plate that length is greater than the hollowcore slab reinforcing area length that needs reinforcement.
5. bridge hollow board reinforcement means according to claim 1, is characterized in that: mode and the junction steel plate that is fixed in hinge seam bridge hollow board bottom surface, both sides that the plate exposure end that extends to bridge hollow board hinge seam lower end described in described step c adopts structure glue or bolt or structure glue to be combined with bolt carry out affixed; Between described junction steel plate and bridge hollow board bottom surface, adopt structure glue or be implanted in the screw mandrel of bridge hollow board bottom surface or reinforcing steel bars exposed end carries out affixed or structure glue screw mandrel or reinforcing steel bars exposed end carries out the affixed mode that both are combined with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164542.2A CN103898841B (en) | 2014-04-23 | 2014-04-23 | A kind of blank board bridge reinforcement means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164542.2A CN103898841B (en) | 2014-04-23 | 2014-04-23 | A kind of blank board bridge reinforcement means |
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| CN103898841A true CN103898841A (en) | 2014-07-02 |
| CN103898841B CN103898841B (en) | 2015-08-19 |
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Cited By (12)
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|---|---|---|---|---|
| CN104074131A (en) * | 2014-07-19 | 2014-10-01 | 福州大学 | Assembled inverted T-shaped slab bridge structure and construction method thereof |
| CN104594189A (en) * | 2015-01-21 | 2015-05-06 | 何小兵 | Hinge joint structure with composite shear keys and precast slab bridge thereof |
| CN106223212A (en) * | 2016-08-11 | 2016-12-14 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means suffering fired damage bridge |
| CN108103959A (en) * | 2017-11-10 | 2018-06-01 | 南京市交通工程质量监督站 | A kind of hollow slab girder shear-carrying capacity method for improving |
| CN108103963A (en) * | 2017-12-27 | 2018-06-01 | 沈阳建筑大学 | A kind of reinforcement means of Hollow Slab Beam Bridge |
| CN108330849A (en) * | 2018-04-28 | 2018-07-27 | 洛阳理工学院 | A kind of road and bridge crack ruggedized construction device |
| CN108625278A (en) * | 2018-05-22 | 2018-10-09 | 信阳师范学院 | A kind of hollow slab bridge hinge seam connector and its stress checking calculation method |
| CN109594484A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | Bridge strengthening device, ruggedized construction, reinforced construction method and reinforcement and repair method |
| CN109629463A (en) * | 2019-01-23 | 2019-04-16 | 平顶山市公路交通勘察设计院 | A kind of bridge end ruggedized construction and bridge plate end crack treatment technique |
| CN109989359A (en) * | 2019-03-08 | 2019-07-09 | 苏交科集团股份有限公司 | A kind of hollow slab girder reinforcement means and structure |
| CN111206498A (en) * | 2020-01-16 | 2020-05-29 | 姜江 | Road bridge construction prefabricated plate connection structure |
| CN111335163A (en) * | 2020-04-07 | 2020-06-26 | 华汇工程设计集团股份有限公司 | Transverse connection method for hollow slab beam by steel insertion method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074131B (en) * | 2014-07-19 | 2016-05-04 | 福州大学 | A kind of assembled inverted T-shaped slab bridge structure and construction method thereof |
| CN104074131A (en) * | 2014-07-19 | 2014-10-01 | 福州大学 | Assembled inverted T-shaped slab bridge structure and construction method thereof |
| CN104594189A (en) * | 2015-01-21 | 2015-05-06 | 何小兵 | Hinge joint structure with composite shear keys and precast slab bridge thereof |
| CN106223212A (en) * | 2016-08-11 | 2016-12-14 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means suffering fired damage bridge |
| CN106223212B (en) * | 2016-08-11 | 2017-12-15 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means by fired damage bridge |
| CN109594484A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | Bridge strengthening device, ruggedized construction, reinforced construction method and reinforcement and repair method |
| CN108103959B (en) * | 2017-11-10 | 2024-04-16 | 南京市交通运输综合行政执法监督局 | Method for improving shear bearing capacity of hollow slab beam |
| CN108103959A (en) * | 2017-11-10 | 2018-06-01 | 南京市交通工程质量监督站 | A kind of hollow slab girder shear-carrying capacity method for improving |
| CN108103963A (en) * | 2017-12-27 | 2018-06-01 | 沈阳建筑大学 | A kind of reinforcement means of Hollow Slab Beam Bridge |
| CN108330849A (en) * | 2018-04-28 | 2018-07-27 | 洛阳理工学院 | A kind of road and bridge crack ruggedized construction device |
| CN108625278A (en) * | 2018-05-22 | 2018-10-09 | 信阳师范学院 | A kind of hollow slab bridge hinge seam connector and its stress checking calculation method |
| CN108625278B (en) * | 2018-05-22 | 2023-10-31 | 信阳师范学院 | Hollow slab bridge hinge joint connecting piece and stress checking calculation method thereof |
| CN109629463B (en) * | 2019-01-23 | 2023-12-08 | 河南中平交科研究设计院有限公司 | Bridge end reinforcing structure and bridge plate end crack treatment process |
| CN109629463A (en) * | 2019-01-23 | 2019-04-16 | 平顶山市公路交通勘察设计院 | A kind of bridge end ruggedized construction and bridge plate end crack treatment technique |
| CN109989359A (en) * | 2019-03-08 | 2019-07-09 | 苏交科集团股份有限公司 | A kind of hollow slab girder reinforcement means and structure |
| CN111206498A (en) * | 2020-01-16 | 2020-05-29 | 姜江 | Road bridge construction prefabricated plate connection structure |
| CN111335163A (en) * | 2020-04-07 | 2020-06-26 | 华汇工程设计集团股份有限公司 | Transverse connection method for hollow slab beam by steel insertion method |
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| CN103898841B (en) | 2015-08-19 |
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