CN110158462B - Reinforcing structure for local part of concrete bridge, concrete bridge and construction method - Google Patents
Reinforcing structure for local part of concrete bridge, concrete bridge and construction method Download PDFInfo
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- CN110158462B CN110158462B CN201910386054.9A CN201910386054A CN110158462B CN 110158462 B CN110158462 B CN 110158462B CN 201910386054 A CN201910386054 A CN 201910386054A CN 110158462 B CN110158462 B CN 110158462B
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- 239000004567 concrete Substances 0.000 title claims abstract description 155
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 43
- 230000002787 reinforcement Effects 0.000 claims description 41
- 239000010426 asphalt Substances 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000004593 Epoxy Substances 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a reinforcing structure for a local part of a concrete bridge, the concrete bridge and a construction method, and relates to the technical field of bridge construction.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a reinforcing structure for a local part of a concrete bridge, the concrete bridge and a construction method.
Background
In the multi-span simply supported system bridge, the continuous parts of adjacent bridge spans are obviously deformed, the stress condition is complex, the bridge deck continuous structure is weaker in rigidity and strength compared with the bridge span structure, the construction quality is difficult to ensure, and the increasing traffic demand causes diseases such as crack of a paving layer, crack of concrete at a beam end and the like at the continuous seam of the built bridge deck. In the existing concrete bridge, the problems of serious bridge deck concrete damage and the like of the concrete bridge caused by insufficient performances such as rigidity and the like are endlessly solved.
In the prior art, for weak parts which are easy to cause problems of pavement cracking, beam end concrete cracking, serious concrete damage and the like, grouting repair is usually carried out after the damage, but the repair method can not improve the stress condition of the damaged parts, so that the damage phenomenon still occurs due to the conditions of complex stress, insufficient rigidity and the like after the repair.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a reinforcing structure for a local part of a concrete bridge, the concrete bridge and a construction method, which can improve the tensile capacity and crack control capacity of a weak part of the concrete bridge and reduce the situations of cracking of a paving layer, cracking of concrete at a beam end or serious damage of the concrete.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a reinforcing structure for a concrete bridge, the concrete bridge including an asphalt layer, a concrete beam, and a bridge deck waterproof concrete pavement layer, the reinforcing structure being disposed through the bridge deck waterproof concrete pavement layer, the reinforcing structure comprising:
the ultra-high performance concrete layer is arranged between the asphalt layer and the concrete beam, and is connected with the concrete beam into a whole, and a reinforcement cage is arranged in the ultra-high performance concrete layer;
the connecting plate, the connecting plate includes relative first connecting plate and the second connecting plate that sets up from top to bottom, first connecting plate with framework of steel upper portion is connected, the second connecting plate with framework of steel lower part is connected.
On the basis of the technical scheme, the steel reinforcement framework comprises an upper layer steel reinforcement net, a lower layer steel reinforcement net and a plurality of vertical planting bars, wherein one ends of the vertical planting bars are fixed with the concrete beam, the other ends of the vertical planting bars are fixed with the upper layer steel reinforcement net, the lower layer steel reinforcement net is fixed between the upper layer steel reinforcement net and the concrete beam, one side, close to the asphalt layer, of the upper layer steel reinforcement net is fixed with the first connecting plate, and one side, close to the concrete beam, of the lower layer steel reinforcement net is fixed with the second connecting plate.
On the basis of the technical scheme, the second connecting plate is provided with a plurality of through holes for the vertical planting bars to pass through.
On the basis of the technical scheme, the second connecting plate is attached to the concrete beam.
On the basis of the technical scheme, a rapid hardening mortar layer is arranged between the second connecting plate and the concrete beam.
On the basis of the technical scheme, an epoxy waterproof layer is arranged between the reinforcing structure and the asphalt layer.
On the basis of the technical scheme, the epoxy waterproof layer is an epoxy resin adhesive.
In a second aspect, the invention also provides a concrete bridge provided with a reinforcing construction for a concrete bridge part as described above, comprising:
a concrete beam;
the asphalt layer is arranged above the concrete beam;
the bridge deck waterproof concrete pavement layer is arranged between the concrete beam and the asphalt layer, and the reinforcing structure is arranged in the bridge deck waterproof concrete pavement layer at the weak part of the concrete bridge.
In a third aspect, the present invention also provides a construction method of the concrete bridge, including the following steps:
carrying out the concrete beam joint filling and/or bridge deck waterproof concrete pavement layer cutting treatment on the weak part of the concrete bridge;
installing the second connecting plate above the weak part of the concrete bridge;
installing a reinforcement cage above the second connecting plate and the first connecting plate;
pouring the ultra-high performance concrete layer;
and paving an asphalt layer on the concrete bridge.
On the basis of the technical scheme, when the asphalt layer is paved, the asphalt layer joint and the ultra-high performance concrete layer joint are arranged in a staggered mode.
Compared with the prior art, the invention has the advantages that:
according to the reinforcing structure for the local part of the concrete bridge, the connecting plate is arranged at the weak part of the concrete bridge, so that the bending and stretching stress of the weak part can be reduced, the cracking resistance of the weak part is enhanced, meanwhile, the ultra-high-performance concrete layer is arranged at the weak part, and the tensile resistance and the crack control capability of the weak part of the concrete bridge can be correspondingly improved through the combination of the connecting plate and the ultra-high-performance concrete layer due to the characteristics of high tensile strength, high compressive strength, high elastic modulus, high ductility, high toughness and high durability of the ultra-high-performance concrete layer, so that the situations of cracking of a paving layer, cracking of concrete at the beam end or serious concrete breakage of the concrete bridge are reduced.
Drawings
FIG. 1 is a schematic elevation view of a concrete bridge provided with a reinforcing structure in an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a concrete bridge provided with a reinforcing structure in an embodiment of the invention;
fig. 3 is an enlarged schematic view of a portion of a concrete bridge provided with a reinforcing structure in an embodiment of the present invention.
In the figure: the concrete comprises the following components of a 1-ultra-high-performance concrete layer, a 11-reinforcement cage, a 12-upper reinforcement cage, a 13-lower reinforcement cage, 14-vertical embedded bars, 2-connecting plates, 21-first connecting plates, 22-second connecting plates, a 3-asphalt layer, 4-concrete beams, a 5-bridge deck waterproof concrete pavement layer, a 6-quick setting mortar layer, a 7-epoxy waterproof layer and 8-pouring holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, an embodiment of the invention provides a reinforcing structure for a local part of a concrete bridge, the concrete bridge comprises an asphalt layer 3, a concrete beam 4 and a bridge deck waterproof concrete pavement layer 5, the reinforcing structure is arranged in the bridge deck waterproof concrete pavement layer 5 in a penetrating manner, the reinforcing structure comprises an ultra-high performance concrete layer 1 and a connecting plate 2, the ultra-high performance concrete layer 1 is arranged between the asphalt layer 3 and the concrete beam 4, the ultra-high performance concrete layer 1 and the concrete beam 4 are connected into a whole, a reinforcement cage 11 is arranged in the ultra-high performance concrete layer 1, the connecting plate 2 comprises a first connecting plate 21 and a second connecting plate 22 which are arranged up and down oppositely, the first connecting plate 21 is connected with the upper part of the reinforcement cage 11, the second connecting plate 22 is connected with the lower part of the reinforcement cage 11, and the second connecting plate 22 is attached to the concrete beam 4.
The connecting plate 2 is arranged at the weak part of the concrete bridge, the bending tensile stress of the weak part can be reduced, the cracking resistance of the concrete bridge is enhanced, the first connecting plate 21 and the second connecting plate 22 which are arranged up and down relatively are arranged, the tensile stress of the top surface and the bottom surface of the concrete of the weak part can be resisted, wherein the weak part is a part where the problems of pavement layer cracking, beam end concrete cracking or serious concrete breakage and the like are easy to occur, meanwhile, the ultra-high performance concrete layer 1 is arranged at the weak part, and because the ultra-high performance concrete layer 1 is ultra-high performance concrete, the ultra-high performance concrete layer 1 has the characteristics of high tensile strength and compressive strength, high elastic modulus, high ductility, high toughness and high durability, the tensile capacity and the cracking resistance of the weak part can be further improved, the tensile capacity and the crack control capacity of the weak part of the concrete bridge can be correspondingly improved through the combination of the connecting plate 2 and the ultra-high performance concrete layer 1, the pavement layer cracking, beam end concrete cracking or serious concrete breakage and the like are further reduced, the maintenance cost is prolonged, and the service life is also convenient to construct is also provided.
As shown in fig. 2 and 3, further, the tensile capacity of the ultra-high performance concrete layer 1 can be further improved through the arranged reinforcement cage 11, namely, the tensile capacity and the crack resistance of the weak part of the concrete bridge are correspondingly increased, wherein the ultra-high performance concrete layer 1 meets the index requirements that the standard value of the compressive strength is greater than or equal to 120MPa and the flexural strength is greater than or equal to 22 MPa;
referring to fig. 1 and 3, preferably, the reinforcement cage 11 includes an upper reinforcement cage 12, a lower reinforcement cage 13 and a plurality of vertical planting bars 14, one end of each vertical planting bar 14 is fixed with the concrete beam 4, the upper reinforcement cage 12 is fixed at the other end of each vertical planting bar 14, the lower reinforcement cage 13 is fixed between the upper reinforcement cage 12 and the concrete beam 4, one side of the upper reinforcement cage 12, which is close to the asphalt layer 3, is fixed with the first connecting plate 21, one side of the lower reinforcement cage 13, which is close to the concrete beam 4, is fixed with the second connecting plate 22, the first connecting plate 21 and the second connecting plate 22 are respectively fixedly connected with the upper reinforcement cage 12 and the lower reinforcement cage 13, and the vertical planting bars 14 are fixed with the upper reinforcement cage 12 and the lower reinforcement cage 13, so that the required shearing resistance and the pushing resistance between the ultra-high performance concrete layer 1 and the connecting plate 2 are guaranteed, and the bending tensile stress of the bottom surface of the ultra-high-performance concrete layer 1 is effectively reduced, thereby the whole tensile resistance and crack resistance are improved, and the crack resistance performance of the bridge is improved, and the concrete bridge is broken and the whole has a better service life performance of the bridge is improved by fixing one end of the planting bars 14 and the vertical planting bars 4 with the concrete beam 4 to the concrete bridge.
Referring to fig. 1, a plurality of pouring holes 8 are formed in a first connecting plate 21, so that after the first connecting plate 21 is fixed with an upper reinforcing mesh 12, an ultra-high performance concrete layer 1 is poured in a region below the first connecting plate 21 through the pouring holes 8, so that the compactness of the ultra-high performance concrete layer 1 is ensured, the overall performance of the ultra-high performance concrete layer 1 is further enhanced, and the tensile capacity and the crack resistance of the reinforced structure are ensured; the second connecting plate 22 is provided with a plurality of through holes for the vertical bar planting 14 to pass through, and the vertical bar planting 14 can be arranged in the area where the second connecting plate 22 is arranged, so that the overall strength between the first connecting plate 21 and the second connecting plate 22 is ensured.
Referring to fig. 3, the second connecting plate (22) is attached to the concrete beam (4), preferably, a quick setting mortar layer 6 is disposed between the second connecting plate 22 and the concrete beam 4, so that the second connecting plate 22 and the concrete beam 4 can be tightly attached to each other, flatness of the second connecting plate is guaranteed, and force transmission reliability between the concrete beam 4 and the second connecting plate 22 is facilitated.
An epoxy waterproof layer 7 is provided between the reinforcing structure and the asphalt layer 3, and preferably, the epoxy waterproof layer 7 is an epoxy resin adhesive, so that the adhesion between the reinforcing structure and the asphalt layer 3 can be improved, and at the same time, when the epoxy waterproof layer 7 is laid, roughening treatment is performed on the upper surface of the reinforcing structure, so that the adhesion between the reinforcing structure and the asphalt layer 3 can be further improved.
Referring to fig. 1 to 3, the present embodiment further provides a concrete bridge provided with the above reinforcing structure for a concrete bridge portion, comprising:
a concrete beam 4;
the asphalt layer 3 is arranged above the concrete beam 4;
the bridge deck waterproof concrete pavement layer 5 is arranged between the concrete beam 4 and the asphalt layer 3, and the bridge deck waterproof concrete pavement layer 5 at the weak part of the concrete bridge beam is provided with a reinforcing structure.
The weak position of this concrete bridge sets up reinforced structure, reinforced structure includes connecting plate 2, can reduce the flexural tensile stress at weak position, and strengthen its crack resistance, wherein, weak position is the position that easily appears the pavement fracture, beam-end concrete is cracked or the serious scheduling problem of concrete breakage, simultaneously, reinforced structure still includes ultra-high performance concrete layer 1, because ultra-high performance concrete layer 1 is ultra-high performance concrete, it has high tensile and compressive strength, high modulus of elasticity, high ductility, high toughness and high durability's characteristics, set up the tensile ability and the crack resistance of this position of ability further improvement, reinforced structure through connecting plate 2 and ultra-high performance concrete layer 1 combine formation can cooperate each other and act on in order to improve the tensile ability and the crack control ability at the weak position of concrete bridge, and then reduce the pavement fracture, beam-end concrete fracture or the serious circumstances of concrete breakage appear in concrete bridge, reduce maintenance cost, improve bridge life, and still have the characteristics of being convenient for construction.
Referring to fig. 1 to 3, the present embodiment further provides a construction method of the concrete bridge, including the following steps:
manufacturing a connecting plate 2 in a factory;
carrying out joint filling of the concrete beam 4 and/or cutting treatment of the bridge deck waterproof concrete pavement layer 5 on the weak part of the concrete bridge;
installing a second connecting plate 22 above the weak part of the concrete bridge;
installing the reinforcement cage 11 and the first connecting plate 21 above the second connecting plate 22;
pouring an ultra-high performance concrete layer 1;
and paving an asphalt layer 3 on the concrete bridge.
When the concrete bridge is a forward building bridge, the weak part of the concrete bridge is subjected to joint filling treatment of the concrete beam 4, so that the leakage condition during concrete pouring is avoided;
the construction of pouring the reinforced bars and the concrete of the bridge deck waterproof concrete pavement layer 5 at the non-weak part is completed, and meanwhile, the reinforced bars at two sides of the bridge deck waterproof concrete pavement layer 5 extend out by a reasonable length towards the weak part with the reinforcing structure;
the second connecting plate 22 and the top of the concrete beam 4 at the weak part are positioned and drilled;
vertical planting bars 14 are arranged on the top of the concrete beam 4 at the weak part;
paving a quick setting mortar layer 6 at the position of the concrete beam 4 where the second connecting plate 22 is arranged, and arranging the second connecting plate 22 on the quick setting mortar layer 6;
the lower layer reinforcing steel bar net 13 and the upper layer reinforcing steel bar net 12 are arranged at the weak part, the lower layer reinforcing steel bar net 13 is welded with the overhanging reinforcing steel bars of the bridge deck waterproof concrete pavement layer 5 and the upper surface of the second connecting plate 22, and the upper layer reinforcing steel bar net 12 is welded with the vertical reinforcing steel bar 14;
positioning, leveling and installing a first connecting plate 21, and welding and fixing the first connecting plate 21 and the upper reinforcing mesh 12;
pouring an ultra-high performance concrete layer 1 at the weak part, and curing the ultra-high performance concrete layer until the strength meets the requirement;
timely roughening the upper surface of the ultra-high performance concrete layer 1 and paving an epoxy waterproof layer 7;
and after the epoxy waterproof layer 7 is paved, paving the asphalt layer 3 immediately to finish the construction of the bridge.
When the concrete bridge is a built bridge with cracking or breakage, the asphalt layer 3 at the weak part or the cracking part of the concrete bridge and the waterproof concrete pavement layer 5 of the bridge deck are cut, and when the concrete beam 4 at the cut part is provided with a seam, the seam is required to be subjected to seam filling treatment;
positioning and drilling the second connecting plate 22 and the top of the concrete beam 4;
vertical planting bars 14 are arranged on the top of the concrete beam 4 at the weak part;
paving a quick setting mortar layer 6 at the position of the concrete beam 4 where the second connecting plate 22 is arranged, and arranging the second connecting plate 22 on the quick setting mortar layer 6;
the lower layer reinforcing steel bar net 13 and the upper layer reinforcing steel bar net 12 are arranged at the weak part, the lower layer reinforcing steel bar net 13 is welded with the overhanging reinforcing steel bars of the bridge deck waterproof concrete pavement layer 5 and the upper surface of the second connecting plate 22, and the upper layer reinforcing steel bar net 12 is welded with the vertical reinforcing steel bar 14;
positioning, leveling and installing a first connecting plate 21, and welding and fixing the first connecting plate 21 and the upper reinforcing mesh 12;
pouring an ultra-high performance concrete layer 1 at the weak part, and curing the ultra-high performance concrete layer until the strength meets the requirement;
timely roughening the upper surface of the ultra-high performance concrete layer 1 and paving an epoxy waterproof layer 7;
after the epoxy waterproof layer 7 is paved, the asphalt layer 3 is paved immediately, so that maintenance or maintenance construction of the bridge is completed.
When laying asphalt layer 3, asphalt layer 3 seam and ultra-high performance concrete layer 1 seam carry out dislocation set, can avoid asphalt layer 3 seam and ultra-high performance concrete layer 1 seam because when being located the coplanar, lead to the condition that cracking and damage appear in this department easily, can reduce the influence of seam to tensile ability and crack resistance through dislocation set promptly.
The invention is not limited to the embodiments described above, but a number of modifications and adaptations can be made by a person skilled in the art without departing from the principle of the invention, which modifications and adaptations are also considered to be within the scope of the invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (8)
1. A strengthen structure for concrete bridge part, concrete bridge includes asphalt layer (3), concrete beam (4) and bridge floor waterproof concrete pavement layer (5), strengthen structure wears to locate in bridge floor waterproof concrete pavement layer (5), its characterized in that, strengthen structure includes:
the ultra-high performance concrete layer (1), the ultra-high performance concrete layer (1) is arranged between the asphalt layer (3) and the concrete beam (4), the ultra-high performance concrete layer (1) and the concrete beam (4) are connected into a whole, and a reinforcement cage (11) is arranged in the ultra-high performance concrete layer (1);
the connecting plate (2), the connecting plate (2) comprises a first connecting plate (21) and a second connecting plate (22) which are oppositely arranged up and down, the first connecting plate (21) is connected with the upper part of the steel reinforcement framework (11), and the second connecting plate (22) is connected with the lower part of the steel reinforcement framework (11);
the steel reinforcement framework (11) comprises an upper layer steel reinforcement net (12), a lower layer steel reinforcement net (13) and a plurality of vertical planting bars (14), wherein one end of each vertical planting bar (14) is fixed with the concrete beam (4), the other end of each vertical planting bar is fixed with the upper layer steel reinforcement net (12), the lower layer steel reinforcement net (13) is fixed between the upper layer steel reinforcement net (12) and the concrete beam (4), one side, close to the asphalt layer (3), of the upper layer steel reinforcement net (12) is fixed with the first connecting plate (21), and one side, close to the concrete beam (4), of the lower layer steel reinforcement net (13) is fixed with the second connecting plate (22);
the second connecting plate (22) is attached to the concrete beam (4).
2. A reinforcing structure for a concrete bridge segment as set forth in claim 1, wherein: the second connecting plate (22) is provided with a plurality of through holes for the vertical planting bars (14) to pass through.
3. A reinforcing structure for a concrete bridge segment as set forth in claim 1, wherein: a rapid hardening mortar layer (6) is arranged between the second connecting plate (22) and the concrete beam (4).
4. A reinforcing structure for a concrete bridge segment as set forth in claim 1, wherein: an epoxy waterproof layer (7) is arranged between the reinforcing structure and the asphalt layer (3).
5. A reinforcing structure for a concrete bridge segment as set forth in claim 4, wherein: the epoxy waterproof layer (7) is an epoxy resin adhesive.
6. A concrete bridge provided with the reinforcing structure for a concrete bridge part according to claim 1, comprising:
a concrete beam (4);
the asphalt layer (3), the asphalt layer (3) is arranged above the concrete beam (4);
the bridge deck waterproof concrete pavement layer (5), the bridge deck waterproof concrete pavement layer (5) is arranged between the concrete beam (4) and the asphalt layer (3), and the bridge deck waterproof concrete pavement layer (5) at the weak part of the concrete bridge is internally provided with the reinforcing structure.
7. A method of constructing a concrete bridge as claimed in claim 6, comprising the steps of:
carrying out joint filling treatment on the concrete beam (4) and/or cutting treatment on the bridge deck waterproof concrete pavement layer (5) on the weak part of the concrete bridge;
-mounting the second connection plate (22) above the weak point of the concrete bridge;
installing a reinforcement cage (11) and a first connecting plate (21) above the second connecting plate (22);
pouring the ultra-high performance concrete layer (1);
and paving an asphalt layer (3) on the concrete bridge.
8. The construction method according to claim 7, wherein: when the asphalt layer (3) is paved, the joint of the asphalt layer (3) and the joint of the ultra-high performance concrete layer (1) are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910386054.9A CN110158462B (en) | 2019-05-09 | 2019-05-09 | Reinforcing structure for local part of concrete bridge, concrete bridge and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386054.9A CN110158462B (en) | 2019-05-09 | 2019-05-09 | Reinforcing structure for local part of concrete bridge, concrete bridge and construction method |
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| CN110158462A CN110158462A (en) | 2019-08-23 |
| CN110158462B true CN110158462B (en) | 2024-04-02 |
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|---|---|---|---|---|
| CN102943436A (en) * | 2012-12-07 | 2013-02-27 | 湖南大学 | Steel-ultra-high performance concrete combined bridge deck structure with shearing resisting structure and construction method thereof |
| CN104674647A (en) * | 2015-02-05 | 2015-06-03 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Steel-concrete combination structure for hybrid girder bridge |
| CN105178165A (en) * | 2015-10-09 | 2015-12-23 | 西藏自治区交通勘察设计研究院 | Tension face layer compound-reinforced reinforced concrete continuous rigid frame bridge and construction method thereof |
| CN107090783A (en) * | 2017-06-29 | 2017-08-25 | 上海罗洋新材料科技有限公司 | Hollow Slab Beam Bridge structure and its reinforcement means that a kind of ultra-high performance concrete is reinforced |
| CN210368633U (en) * | 2019-05-09 | 2020-04-21 | 中铁大桥科学研究院有限公司 | A strengthen structure and concrete bridge for concrete bridge is local |
-
2019
- 2019-05-09 CN CN201910386054.9A patent/CN110158462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943436A (en) * | 2012-12-07 | 2013-02-27 | 湖南大学 | Steel-ultra-high performance concrete combined bridge deck structure with shearing resisting structure and construction method thereof |
| CN104674647A (en) * | 2015-02-05 | 2015-06-03 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Steel-concrete combination structure for hybrid girder bridge |
| CN105178165A (en) * | 2015-10-09 | 2015-12-23 | 西藏自治区交通勘察设计研究院 | Tension face layer compound-reinforced reinforced concrete continuous rigid frame bridge and construction method thereof |
| CN107090783A (en) * | 2017-06-29 | 2017-08-25 | 上海罗洋新材料科技有限公司 | Hollow Slab Beam Bridge structure and its reinforcement means that a kind of ultra-high performance concrete is reinforced |
| CN210368633U (en) * | 2019-05-09 | 2020-04-21 | 中铁大桥科学研究院有限公司 | A strengthen structure and concrete bridge for concrete bridge is local |
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