CN113356095A - Transverse reinforcing device for T-beam bridge and construction process - Google Patents
Transverse reinforcing device for T-beam bridge and construction process Download PDFInfo
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- CN113356095A CN113356095A CN202110796087.8A CN202110796087A CN113356095A CN 113356095 A CN113356095 A CN 113356095A CN 202110796087 A CN202110796087 A CN 202110796087A CN 113356095 A CN113356095 A CN 113356095A
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- bridge
- joist
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 13
- 239000011148 porous material Substances 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a transverse reinforcing device and a construction process for a T-beam bridge, which are used for the T-beam bridge and comprise a transverse joist and a longitudinal beam; the transverse joists are arranged at the top end and the bottom end of end transverse clapboards at two ends of the T-beam bridge, and the top end and the bottom end of first transverse clapboards and the bottom surface of the flange plate are arranged in the transverse clapboards at the two ends at equal intervals; the transverse joists and the longitudinal beams are provided with a plurality of strips, and the adjacent transverse joists are fixedly connected through the longitudinal beams; the longitudinal beam is arranged below the wet joint of the T-beam bridge; the wet seam is arranged at the joint of the two flange plates. The invention realizes the secondary utilization of the damaged bridge in engineering by recovering the transverse connection of the damaged bridge, not only saves the cost, but also realizes the environmental protection by reducing the material usage, and effectively reduces the time cost and the economic cost.
Description
Technical Field
The invention relates to the technical field of bridge design and construction, in particular to a transverse reinforcing device and a construction process for a T-beam bridge.
Background
After the T-shaped beam bridge is put into use for a long time, under the action of vehicle load, wet joints of bridge decks are often damaged, and therefore the road surfaces are damaged due to pits, cracks and other diseases. The conventional treatment scheme at present is to thoroughly break the bridge deck concrete at the wet joint part and pour new concrete again. This method is inefficient, requires a lot of labor and time, is difficult to control the crushing range when crushing concrete, and may cause the surrounding concrete to be also damaged. It is therefore desirable to solve the problem of wet joint failure common in older bridges by other construction methods.
In a bridge disaster, the bridge pier is often damaged, the upper structure of the bridge is intact, and the bridge can be transformed and reused. In the original bridge dismantling process, the whole bridge deck cannot be directly lifted, so wet joints for transverse connection can be cut, and the bridge deck loses transverse connection.
Disclosure of Invention
The invention aims to provide a transverse reinforcing device of a T-beam bridge and a construction process, which are used for solving the problems in the prior art, realizing convenient construction and effectively reducing time cost and economic cost.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a transverse reinforcing device for a T-beam bridge, which is used for the T-beam bridge and comprises a transverse joist and a longitudinal beam; the transverse joists are arranged at the top end and the bottom end of end transverse clapboards at two ends of the T-beam bridge, and the top end and the bottom end of first transverse clapboards and the bottom surface of the flange plate are arranged in the two end transverse clapboards at equal intervals; the transverse joists and the longitudinal beams are provided with a plurality of strips, and the adjacent transverse joists are fixedly connected through the longitudinal beams;
the longitudinal beam is arranged below the wet joint of the T-shaped beam bridge; the wet joint is arranged at the joint of the two flange plates.
Reserved holes are formed in the transverse joist; and the internal thread of the reserved hole channel is provided with prestressed steel.
A wet joint pore channel is vertically formed in the center of the wet joint; the flange plates on the two sides of the wet joint pore passage are provided with a flange plate pore passage; the wet joint pore canal is arranged at the center of the connecting line of the pore canals of the two flange plates; reinforcing steel bars are vertically arranged in the wet joint pore channel and the flange plate pore channel; and the transverse joist is connected with the T-shaped girder bridge through the reinforcing steel bars.
The bridge deck of the T-beam bridge is also provided with a pouring hole; the pouring holes are arranged in the middle of the top surface of the longitudinal beam in an opposite mode.
The prestressed steel is finish-rolled deformed steel bar.
The height of the transverse supporting beam is 28cm-32cm, and the width of the transverse supporting beam is 18cm-22 cm.
A construction process of a transverse reinforcing device of a T-beam bridge comprises the following steps:
positioning and mounting the transverse joist;
vertically placing the reinforcing steel bars in the wet joint pore channel and the flange plate pore channel, and pouring concrete to the transverse joist on the bottom surface of the flange plate and the transverse joists at the top ends of the end diaphragm plate and the first diaphragm plate through the wet joint pore channel and the flange plate pore channel;
pouring concrete to the longitudinal beam through the pouring hole;
anchoring the prestressed steel in the transverse joist;
and reinforcing the end diaphragm plate.
And the end diaphragm plate and the transverse joist at the bottom end of the first diaphragm plate are directly cast with concrete through a machine.
The side wall of the end diaphragm plate is also provided with a reinforcing hole, and a tie bar penetrates through the reinforcing hole; and reinforcing is realized by pouring concrete through binding steel bars on two sides of the end diaphragm plate.
The prestressed steel penetrates through the reserved hole channel; stretching the prestressed steel, and fixing two ends of the prestressed steel at two ends of the transverse joist through bolts; and injecting cement slurry into the reserved hole channel.
The invention discloses the following technical effects: the invention realizes the secondary utilization of the damaged bridge in engineering by recovering the transverse connection of the damaged bridge, not only saves the cost, but also realizes the environmental protection by reducing the material usage, and effectively reduces the time cost and the economic cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of a half elevation of a longitudinal inner beam of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a longitudinal semi-plan view of the present invention;
fig. 4 is a cross-sectional view of a transverse joist in accordance with the present invention.
Wherein, 1, end diaphragm plate; 2. a first diaphragm plate; 3. a transverse joist; 4, transverse joist and prestressed steel; 5. a stringer; 6. wet seaming; 7. tying the reinforcing steel bars; 8. a wet seam channel; 9. a flange plate aperture; 10. reinforcing steel bars; 11. and (6) pouring a hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a transverse reinforcing device for a T-beam bridge, which is used for the T-beam bridge and comprises a transverse joist 3 and a longitudinal beam 5; the transverse joists 3 are arranged at the top end and the bottom end of the end transverse partition plate 1 at the two ends of the T-beam bridge, and the top end and the bottom end of the first transverse partition plate 2 and the bottom surface of the flange plate are arranged in the end transverse partition plates 1 at the two ends at equal intervals; the transverse joists 3 and the longitudinal beams 5 are provided with a plurality of strips, and the adjacent transverse joists 3 are fixedly connected through the longitudinal beams 5;
the longitudinal beam 5 is arranged below the wet joint 6 of the T-beam bridge; a wet seam 6 is provided at the junction of the two flange plates.
Reserved holes are formed in the transverse joist 3; and the internal thread of the reserved hole channel is provided with prestressed steel 4.
A wet joint pore channel 8 is vertically arranged in the center of the wet joint 6; the flange plates on two sides of the wet joint pore canal 8 are provided with a flange plate pore canal 9; the center of the connecting line of the two flange plate pore passages 9 is a wet joint pore passage 8; reinforcing steel bars 10 are vertically arranged in the wet joint pore channel 8 and the flange plate pore channel 9; the transverse joist 3 is connected with the T-beam bridge through a steel bar 10.
The bridge deck of the T-beam bridge is also provided with a pouring hole 11; the pouring holes 11 are arranged in the middle of the top surface of the longitudinal beam 5 in a butt-joint mode.
The prestressed steel 4 is finish-rolled deformed steel bar.
The height of the transverse joist 3 is 28cm-32cm, and the width is 18cm-22 cm.
A construction process of a transverse reinforcing device of a T-beam bridge comprises the following steps:
positioning and mounting the transverse joist 3;
vertically placing reinforcing steel bars 10 in a wet joint pore channel 8 and a flange plate pore channel 9, and pouring concrete into a transverse joist 3 at the bottom surface of a flange plate and a transverse joist 3 at the top ends of an end transverse clapboard 1 and a first transverse clapboard 2 through the wet joint pore channel 8 and the flange plate pore channel 9;
pouring concrete into the longitudinal beam 5 through the pouring hole 11;
anchoring the prestressed steel 4 in the transverse joist 3;
and reinforcing the end diaphragm plate 1.
The concrete is directly poured into the transverse joists 3 at the bottom ends of the end diaphragm plate 1 and the first diaphragm plate 2 through a machine.
The side wall of the end diaphragm plate 1 is also provided with a reinforcing hole, and a tie bar 7 penetrates through the reinforcing hole; the two sides of the end diaphragm plate 1 are reinforced by pouring concrete through binding steel bars.
The prestressed steel 4 is arranged in the reserved hole channel in a penetrating mode; stretching the prestressed steel 4, and fixing two ends of the prestressed steel 4 at two ends of the transverse joist 3 through bolts; and injecting cement slurry into the reserved hole channel.
In one embodiment of the invention, as shown in fig. 2, the transverse rigidity of the T-beam bridge is improved by additionally arranging the transverse joists 3, and the longitudinal rigidity of the T-beam bridge is improved by connecting the transverse joists 3 through the longitudinal beams 5.
Furthermore, the transverse joist 3 at each position adds prestress to the prestress steel through bolts, and further ensures the transverse connection of the T-beam bridge.
Furthermore, besides the transverse joists 3 are added at the end diaphragm plates 1, special treatment is required to be carried out at the end diaphragm plates 1, and concrete is added or poured again to improve the bearing capacity of the end diaphragm plates.
The transverse joist 3 with prestress is arranged above the end diaphragm plate 1, holes penetrating through the end diaphragm plate 1 are drilled according to a certain distance in the lower reinforcing measure, tie bars 7 are arranged in the holes, and the concrete reinforcing end diaphragm plate 1 with a certain thickness is poured on two sides of the original end diaphragm plate 1.
According to the invention, on one hand, the transverse beam is additionally arranged between the transverse partition plates to strengthen the transverse rigidity, and on the other hand, the pouring concrete is poured again or added to strengthen the strength of the end transverse partition plates. Through the two construction technologies, the time-consuming and labor-consuming process of crushing the original concrete is avoided, and the aims of pursuing cost reduction and convenient construction in engineering are achieved.
In one embodiment of the present invention, the T-beam bridge refers to a railroad bridge, a highway bridge, an urban overpass, or the like.
In one embodiment of the invention, the pore size of the infusion orifice 11 is the same as the pore size of the wet joint duct 8; and are all larger than the pore diameter of the flange plate pore passage 9.
In one embodiment of the invention, the bottom of the T-beam bridge is also provided with a reinforcing beam through bolts; the stiffening beam can also be arranged below the flange plate, and the flange plate between the T-beam bridges is connected in a reinforcing way through the stiffening beam.
In one embodiment of the present invention, as shown in fig. 1, after determining the positions of all the transverse joists 3, the formworks are erected, the reinforcing steel bars required for casting concrete on the transverse joists 3 and the connecting reinforcing steel bars adjacent to the longitudinal beams 5 for a certain distance are arranged, wet joint holes 8 are drilled at the wet joints 6, and flange holes 9 are drilled on the two side flanges and vertical reinforcing steel bars 10 are respectively arranged. After the arrangement of the reinforcing steel bars 10 is finished, concrete is poured into the transverse joist 3 at the top of the T-shaped girder bridge through two channels, the transverse joist 3 at the bottom of the T-shaped girder bridge is simultaneously poured through an on-site machine, and a prestressed tendon channel is reserved before the transverse joist 3 is poured. The longitudinal beam is poured through the pouring hole 11. And after the strength of the concrete meets the requirement, penetrating the finish-rolled deformed steel bar into a reserved hole channel, tensioning and enabling the finish-rolled deformed steel bar to reach a controlled tension, anchoring the finish-rolled deformed steel bar on the transverse joist 3 by using a bolt, and then injecting cement paste into the reserved hole channel under pressure, so that the reinforcement measures of other parts of the T-shaped girder bridge except the end transverse clapboard 1 are completed. When the end diaphragm plate 1 is reinforced, holes are drilled at two sides of the diaphragm plate 1, the number of the holes is determined according to the height of the diaphragm plate, tie bars 7 are arranged after the holes are drilled, and then the arranged transverse joist 3 steel bars are combined to pour the concrete reinforced end diaphragm plate. And finally, applying prestress to all the prestressed tendons through bolts to finish the reinforcement of the whole T-shaped beam bridge.
The invention realizes the secondary utilization of the damaged bridge in engineering by recovering the transverse connection of the damaged bridge, not only saves the cost, but also realizes the environmental protection by reducing the material usage, and effectively reduces the time cost and the economic cost.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A T-beam bridge transverse reinforcement device for a T-beam bridge, comprising: a transverse joist (3) and a longitudinal beam (5); the transverse joists (3) are arranged at the top ends and the bottom ends of end transverse clapboards (1) at two ends of the T-beam bridge, and the top ends and the bottom ends of first transverse clapboards (2) and the bottom surfaces of the flange plates are arranged in the two end transverse clapboards (1) at equal intervals; the transverse joists (3) and the longitudinal beams (5) are respectively provided with a plurality of strips, and the adjacent transverse joists (3) are fixedly connected through the longitudinal beams (5);
the longitudinal beam (5) is arranged below a wet joint (6) of the T-beam bridge; the wet joint (6) is arranged at the joint of the two flange plates.
2. A T-beam bridge transverse reinforcing apparatus according to claim 1, wherein: reserved holes are formed in the transverse joist (3); and the internal thread of the reserved hole channel is provided with prestressed steel (4).
3. A T-beam bridge transverse reinforcing apparatus according to claim 1, wherein: a wet joint pore channel (8) is vertically formed in the center of the wet joint (6); the flange plates on the two sides of the wet joint pore channel (8) are respectively provided with a flange plate pore channel (9); the center of the connecting line of the two flange plate pore passages (9) is the wet joint pore passage (8); reinforcing steel bars (10) are vertically arranged in the wet joint pore channel (8) and the flange plate pore channel (9); the transverse joist (3) is connected with the T-shaped girder bridge through the steel bars (10).
4. A T-beam bridge transverse reinforcing apparatus according to claim 1, wherein: the bridge deck of the T-shaped beam bridge is also provided with a pouring hole (11); the pouring holes (11) are arranged in the middle of the top surface of the longitudinal beam (5) in an opposite mode.
5. A T-beam bridge transverse reinforcing apparatus according to claim 2, wherein: the prestress steel (4) is finish-rolled deformed steel bar.
6. A T-beam bridge transverse reinforcing apparatus according to claim 1, wherein: the height of the transverse joist (3) is 28-32 cm, and the width of the transverse joist is 18-22 cm.
7. A T-beam bridge transverse reinforcing device construction process, which comprises the T-beam bridge transverse reinforcing device of claims 1-5, and is characterized by comprising the following steps:
positioning and mounting the transverse joist (3);
vertically placing the reinforcing steel bars (10) in the wet joint pore canal (8) and the flange plate pore canal (9), and pouring concrete to the transverse joist (3) on the bottom surface of the flange plate and the transverse joists (3) on the top ends of the end diaphragm plate (1) and the first diaphragm plate (2) through the wet joint pore canal (8) and the flange plate pore canal (9);
pouring concrete on the longitudinal beam (5) through the pouring hole (11);
anchoring the prestressed steel (4) in the transverse joist (3);
and reinforcing the end diaphragm plate (1).
8. The construction process of the transverse T-beam bridge reinforcing device as claimed in claim 7, wherein: and concrete is directly poured into the transverse joist (3) at the bottom ends of the end diaphragm plate (1) and the first diaphragm plate (2) through a machine.
9. The construction process of the transverse T-beam bridge reinforcing device as claimed in claim 7, wherein: the side wall of the end diaphragm plate (1) is also provided with a reinforcing hole, and a tie bar (7) penetrates through the reinforcing hole; and reinforcing is realized by binding reinforcing steel bars and pouring concrete on two sides of the end transverse partition plate (1).
10. The construction process of the transverse T-beam bridge reinforcing device as claimed in claim 7, wherein: the prestress steel (4) penetrates through the reserved hole channel; stretching the prestressed steel (4), and fixing two ends of the prestressed steel (4) at two ends of the transverse joist (3) through bolts; and injecting cement slurry into the reserved hole channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796087.8A CN113356095A (en) | 2021-07-14 | 2021-07-14 | Transverse reinforcing device for T-beam bridge and construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796087.8A CN113356095A (en) | 2021-07-14 | 2021-07-14 | Transverse reinforcing device for T-beam bridge and construction process |
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| Publication Number | Publication Date |
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| CN113356095A true CN113356095A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110796087.8A Pending CN113356095A (en) | 2021-07-14 | 2021-07-14 | Transverse reinforcing device for T-beam bridge and construction process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121288A (en) * | 2006-11-13 | 2008-05-29 | Fuji Ps Corp | Continuous steel plate web bridge and method of constructing continuous steel plate web bridge |
| CN101570960A (en) * | 2009-05-08 | 2009-11-04 | 北京市市政专业设计院有限责任公司 | Fastening method of T-shaped beam bridge |
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN207484261U (en) * | 2017-10-23 | 2018-06-12 | 内蒙古自治区交通建设工程质量监督局 | A kind of T-shaped bridge structure of pipe stiffener |
| CN108867310A (en) * | 2018-07-12 | 2018-11-23 | 浙江省交通规划设计研究院有限公司 | The short rib T beam bridge of pretensioning prestressed concrete and its construction method |
| CN111042010A (en) * | 2019-12-27 | 2020-04-21 | 湖北建科国际工程有限公司 | T-beam bridge widening structure and construction method |
| CN215629484U (en) * | 2021-07-14 | 2022-01-25 | 中铁十二局集团海南工程有限公司 | Transverse reinforcing device for T-shaped beam bridge |
-
2021
- 2021-07-14 CN CN202110796087.8A patent/CN113356095A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121288A (en) * | 2006-11-13 | 2008-05-29 | Fuji Ps Corp | Continuous steel plate web bridge and method of constructing continuous steel plate web bridge |
| CN101570960A (en) * | 2009-05-08 | 2009-11-04 | 北京市市政专业设计院有限责任公司 | Fastening method of T-shaped beam bridge |
| CN107142829A (en) * | 2017-07-06 | 2017-09-08 | 内蒙古综合交通科学研究院有限责任公司 | A kind of transverse prestress I-shaped box-beam structure |
| CN207484261U (en) * | 2017-10-23 | 2018-06-12 | 内蒙古自治区交通建设工程质量监督局 | A kind of T-shaped bridge structure of pipe stiffener |
| CN108867310A (en) * | 2018-07-12 | 2018-11-23 | 浙江省交通规划设计研究院有限公司 | The short rib T beam bridge of pretensioning prestressed concrete and its construction method |
| CN111042010A (en) * | 2019-12-27 | 2020-04-21 | 湖北建科国际工程有限公司 | T-beam bridge widening structure and construction method |
| CN215629484U (en) * | 2021-07-14 | 2022-01-25 | 中铁十二局集团海南工程有限公司 | Transverse reinforcing device for T-shaped beam bridge |
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