CN104631317A - Hollow plate girder bridge structure and construction process thereof - Google Patents
Hollow plate girder bridge structure and construction process thereof Download PDFInfo
- Publication number
- CN104631317A CN104631317A CN201510057610.XA CN201510057610A CN104631317A CN 104631317 A CN104631317 A CN 104631317A CN 201510057610 A CN201510057610 A CN 201510057610A CN 104631317 A CN104631317 A CN 104631317A
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- Prior art keywords
- hollow slab
- slab beam
- rectangular body
- hollow plate
- cast
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Classifications
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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
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Abstract
The invention discloses a hollow plate girder bridge structure. The hollow plate girder bridge structure comprises a plurality of hollow plate girders which are spliced together, wherein each hollow plate girder comprises a rectangular body; the top of each rectangular body extends towards the two side edges to form small cantilever arm steel bars respectively; the ends of the rectangular bodies are provided with cross beam steel bars; after the small cantilever arm steel bars of the adjacent hollow plate girders are connected, concrete is filled up, bridge deck cast-in-place joints are formed, and the adjacent hollow plate girders are connected together; after the cross beam steel bars of the adjacent hollow plate girders are connected, concrete is filled up, cast-in-place cross beam joints are formed, and the adjacent hollow plate girders are connected together. The invention further discloses a construction process of the hollow plate girder bridge structure. The hollow plate girder bridge structure is good in overall stress performance, reliably guarantees the durability of a bridge, and can be applied to a new project and used for replacing an existing hinged hollow plate girder bridge on the basis of reserving original capping beams, stand columns and other substructures.
Description
Technical field
The present invention relates to technical field of bridge engineering, be specifically related to a kind of hollow slab beam bridge construction and construction technology thereof.
Background technology
The features such as the prefabricated assembled hollowcore slab of pre-tensioning system (beam) has that structure height is low, batch production degree is high, transporting and hoisting is convenient, speed of application is fast and construction costs is low, in bridge engineering, are especially widely used in cross a river Material bridge engineering.
Prefabricated assembled hollowcore slab (beam) of the prior art, as shown in Figures 1 and 2, between beam, laterally the general hinge seam 1 ' that adopts connects (i.e. hinged hollow slab beam), connect, and precast beam generally adopts uniform section aerated capsule 2 ' to make between beam without crossbeam.
Hinged hollow slab beam stitches lateral connection poor-performing owing to cutting with scissors, under Heavy Traffic repeated action, after structure presents the first damage inactivation of hinge seam connection, and the stressed feature causing structural deterioration of single-beam; Because beam-ends does not arrange crossbeam, single-beam four fulcrum seat empty exacerbates lateral connection and destroys, and easily causes stretching device premature breakdown; Uniform beam body structure is stressed also relatively weak.
The structure such as prefabricated assembled small box girder and T beam is adopted in cross a river Material bridge structure.Prefabricated assembled small box girder and T beam adopt bridge deck and multiple tracks crossbeam just to connect in succession, holistic resistant behavior is better, but it generally adopts mold technique in post-stressed and steel, structure height is relatively large, processing and fabricating and transporting and hoisting convenience, and the aspect such as construction costs is compared hollow slab beam and is not had advantage.In cross a river Material bridge engineering, the general shallow girder that adopts reduces by two side joint slope height, and therefore prefabricated assembled small box girder and T beam exist drawback.
Summary of the invention
The object of the present invention is to provide a kind of hollow slab beam bridge construction and construction technology thereof, holistic resistant behavior is good, the endurance quality of bridge has Reliable guarantee, hollow slab beam adopts mold forming in pre-tensioning system manufacture craft, variable cross-section capsule, while the advantage such as have that structure height is low, batch production degree is high, transporting and hoisting is convenient, speed of application is fast and construction costs is low, stress performance and endurance quality improve all greatly, not only can be used for new construction, and the replacing to existing hinged Hollow Slab Beam Bridge can be realized on the basis retaining the substructures such as original bent cap, column.
In order to achieve the above object, the present invention is achieved through the following technical solutions: a kind of hollow slab beam bridge construction, is characterized in, comprises: several hollow slab beams be stitched together, and wherein said hollow slab beam comprises rectangular body;
The top of rectangular body is extended with respectively to dual-side and littlely chooses arm reinforcing bar;
The end of rectangular body is provided with crossbeam reinforcing bar;
Described adjacent hollow slab beam little chooses fill concrete after arm bar connecting, forms the cast-in-place seam of bridge deck, is linked together by adjacent hollow slab beam;
Fill concrete after the crossbeam bar connecting of described adjacent hollow slab beam, forms cast-in-place crossbeam seam, is linked together by adjacent hollow slab beam.
The rectangular body of described hollow slab beam also comprises the inner chamber of a variable cross-section, and described inner chamber runs through described rectangular body, and parallels with the length direction of described rectangular body.
Described hollow slab beam also comprises prestressed strand, is arranged on the below of described inner chamber, is positioned at the bottom of rectangular body, and parallels with the length direction of described rectangular body.
Mold forming in the aerated capsule of described inner chamber employing variable cross-section.
The size of described cavity ends is less than the size of inner chamber middle part.
The length direction of described crossbeam reinforcing bar and described rectangular body is that predetermined angle is arranged.
Described hollow slab beam adopts pretensioned prestressing manufacture craft processing preparation.
The thickness of the cast-in-place seam of described bridge deck is less than the thickness of described rectangular body.
The thickness of described cast-in-place crossbeam seam is identical with the thickness of described rectangular body.
A construction technology for hollow slab beam bridge construction, is characterized in, comprises following steps:
Several hollow slab beams are lifted successively to permanent bearing, completes hollow slab beam erection;
To connect between adjacent hollow plate-girder little chooses arm reinforcing bar, fluid concrete, forms the cast-in-place seam of bridge deck;
Connect the crossbeam reinforcing bar between adjacent hollow plate-girder, fluid concrete, forms cast-in-place crossbeam seam;
After leaving standstill health, bridge deck accessory structure is installed, completes Hollow Slab Beam Bridge structure construction.
A kind of hollow slab beam bridge construction of the present invention and construction technology thereof compared with prior art have the following advantages: structure is connected by bridge deck lateral stiffness, meet firm fishplate bar beam method load relieving system design conditions, structural entity stress performance and excellent in durability; Hollow slab beam adopts pretensioned prestressing and aerated capsule internal mold manufacture craft, has that structure height is low, batch production degree is high, processing and fabricating and an advantage such as transporting and hoisting is convenient, construction costs is low; Hollow plate beam internal model adopts variable cross-section aerated capsule, and hollow slab beam longitudinally forms Varying-thickness web, substantially improves the structure tension performance in cross section near bearing; The cast-in-place crossbeam seam in vibrational power flow end, holistic resistant behavior is good, can solve the stressed problem after seat empty, and is beneficial to stretching device installation; On the top that end cast-in-place crossbeam seam utilizes precast beam end cross-sectional to thicken, base plate, overhanging transverse reinforcement realizes, simple structure, easy construction; Structure height equidimension and the hinged hollowcore slab of tradition close, not only can be used for a large amount of new construction such as cross a river Material bridge, and can realize the replacing to existing hinged Hollow Slab Beam Bridge on the basis retaining the substructures such as original bent cap, column, application prospect is extensive.
Accompanying drawing explanation
Fig. 1 is the structural representation of prefabricated assembled hollow slab beam in prior art;
Fig. 2 is the structural representation of the prefabricated assembled hollow slab beam of another form in prior art;
Fig. 3 is the schematic cross-sectional view of a kind of hollow slab beam bridge construction of the present invention;
Fig. 4 is end face schematic diagram of the present invention;
Fig. 5 is the schematic diagram of hollow slab beam;
Fig. 6 is the side schematic view of hollow slab beam.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
A hollow slab beam bridge construction as shown in figures 3 to 6, comprises: the hollow slab beam 100 that several are stitched together, and wherein said hollow slab beam 100 comprises rectangular body 101; The top of rectangular body 101 is extended with respectively to dual-side and littlely chooses arm reinforcing bar 1011; The end of rectangular body 101 is provided with crossbeam reinforcing bar 102; The little arm reinforcing bar 1011 of choosing of described adjacent hollow slab beam 100 has just connect rear fill concrete, and form the cast-in-place seam 200 of bridge deck, linked together by adjacent hollow slab beam 100, the thickness of the cast-in-place seam of bridge deck 200 is less than the thickness of described rectangular body 101; The crossbeam reinforcing bar 102 of described adjacent hollow slab beam 100 has just connect rear fill concrete, form cast-in-place crossbeam seam 300, adjacent hollow slab beam 100 is linked together, the thickness of cast-in-place crossbeam seam 300 is substantially identical with the thickness of described rectangular body 101, arranges anticollision barrier 400 in the both sides of bridge deck.
The rectangular body 101 of hollow slab beam 100 also comprises the inner chamber 103 of a variable cross-section, and described inner chamber 103 runs through described rectangular body 101, and parallels with the length direction of described rectangular body 101.
Hollow slab beam 100 also comprises prestressed strand 104, is arranged on the below of described inner chamber 103, is positioned at the bottom of rectangular body 101, and parallels with the length direction of described rectangular body 101.
Mold forming in the aerated capsule that inner chamber 103 adopts variable cross-section, namely the size of inner chamber 103 end is less than the size of inner chamber 103 middle part, particularly, near bearing inner chamber 103 sectional dimension comparatively span centre reduce 5 ~ 20cm, make bearing cross section web thickness and top, the corresponding increasing 5 ~ 20cm of base plate thickness, structure longitudinally forms Varying-thickness web, and also namely inner chamber 103 two is thin, middle thick structure.
The length direction of described crossbeam reinforcing bar and described rectangular body is that predetermined angle is arranged.
Hollow slab beam adopts pretensioned prestressing manufacture craft processing preparation.Comprise particularly:
Prestressed strand is placed on pedestal, carries out after stretch-draw and assembling reinforcement;
Be placed into above prestressed strand after being inflated by aerated capsule internal mold, wherein said aerated capsule is the aerated capsule of variable cross-section;
Arrange crossbeam reinforcing bar, littlely choose fluid concrete after arm reinforcing bar and external mold, the length direction of wherein said crossbeam reinforcing bar and described rectangular body is that predetermined angle is arranged;
Extract out after the venting of aerated capsule internal mold after leaving standstill health prefixed time interval;
After being put by prestressed strand, prepared by hollow slab beam.
The present invention also discloses a kind of construction technology of hollow slab beam bridge construction, comprises following steps:
Lift by crane after head plate is placed respectively in the both ends of the inner chamber 103 of several hollow slab beams 100, handling, to permanent bearing, completes hollow slab beam erection;
To connect between adjacent hollow plate-girder little chooses arm reinforcing bar, fluid concrete, forms the cast-in-place seam of bridge deck;
Connect the crossbeam reinforcing bar between adjacent hollow plate-girder, fluid concrete, forms cast-in-place crossbeam seam;
Bridge deck accessory structure is installed, such as anticollision barrier after leaving standstill health, completes Hollow Slab Beam Bridge structure construction.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a hollow slab beam bridge construction, is characterized in that, comprises: several hollow slab beams be stitched together, and wherein said hollow slab beam comprises rectangular body;
The top of rectangular body is extended with respectively to dual-side and littlely chooses arm reinforcing bar;
The end of rectangular body is provided with crossbeam reinforcing bar;
Described adjacent hollow slab beam little chooses fill concrete after arm bar connecting, forms the cast-in-place seam of bridge deck, is linked together by adjacent hollow slab beam;
Fill concrete after the crossbeam bar connecting of described adjacent hollow slab beam, forms cast-in-place crossbeam seam, is linked together by adjacent hollow slab beam.
2. hollow slab beam bridge construction as claimed in claim 1, it is characterized in that, the rectangular body of described hollow slab beam also comprises the inner chamber of a variable cross-section, and described inner chamber runs through described rectangular body, and parallels with the length direction of described rectangular body.
3. hollow slab beam bridge construction as claimed in claim 2, it is characterized in that, described hollow slab beam also comprises prestressed strand, is arranged on the below of described inner chamber, is positioned at the bottom of rectangular body, and parallels with the length direction of described rectangular body.
4. hollow slab beam bridge construction as claimed in claim 2, is characterized in that, mold forming in the aerated capsule of described inner chamber employing variable cross-section.
5. hollow slab beam bridge construction as claimed in claim 2, it is characterized in that, the size of described cavity ends is less than the size of inner chamber middle part.
6. hollow slab beam as claimed in claim 1, it is characterized in that, the length direction of described crossbeam reinforcing bar and described rectangular body is that predetermined angle is arranged.
7. hollow slab beam as claimed in claim 1, is characterized in that, described hollow slab beam adopts pretensioned prestressing manufacture craft processing preparation.
8. hollow slab beam bridge construction as claimed in claim 1, it is characterized in that, the thickness of the cast-in-place seam of described bridge deck is less than the thickness of described rectangular body.
9. hollow slab beam bridge construction as claimed in claim 1, it is characterized in that, the thickness of described cast-in-place crossbeam seam is identical with the thickness of described rectangular body.
10. a construction technology for hollow slab beam bridge construction, is characterized in that, comprises following steps:
Several hollow slab beams are lifted successively to permanent bearing, completes hollow slab beam erection;
To connect between adjacent hollow plate-girder little chooses arm reinforcing bar, fluid concrete, forms the cast-in-place seam of bridge deck;
Connect the crossbeam reinforcing bar between adjacent hollow plate-girder, fluid concrete, forms cast-in-place crossbeam seam;
After leaving standstill health, bridge deck accessory structure is installed, completes Hollow Slab Beam Bridge structure construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057610.XA CN104631317B (en) | 2015-02-04 | 2015-02-04 | Hollow plate girder bridge structure and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057610.XA CN104631317B (en) | 2015-02-04 | 2015-02-04 | Hollow plate girder bridge structure and construction process thereof |
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| CN104631317A true CN104631317A (en) | 2015-05-20 |
| CN104631317B CN104631317B (en) | 2017-04-26 |
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| CN201510057610.XA Active CN104631317B (en) | 2015-02-04 | 2015-02-04 | Hollow plate girder bridge structure and construction process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401514A (en) * | 2015-10-20 | 2016-03-16 | 同济大学 | Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge |
| CN113981794A (en) * | 2021-10-22 | 2022-01-28 | 中冶南方城市建设工程技术有限公司 | Combined prefabricated assembled hollow slab beam and construction method thereof |
| CN114150586A (en) * | 2021-12-14 | 2022-03-08 | 中国铁建大桥工程局集团有限公司 | Wave-shaped steel web continuous box girder bridge segment suspension casting asynchronous construction method |
| CN114164747A (en) * | 2021-12-21 | 2022-03-11 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure collaborative stress structure for bridge widening |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401514A (en) * | 2015-10-20 | 2016-03-16 | 同济大学 | Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge |
| CN113981794A (en) * | 2021-10-22 | 2022-01-28 | 中冶南方城市建设工程技术有限公司 | Combined prefabricated assembled hollow slab beam and construction method thereof |
| CN114150586A (en) * | 2021-12-14 | 2022-03-08 | 中国铁建大桥工程局集团有限公司 | Wave-shaped steel web continuous box girder bridge segment suspension casting asynchronous construction method |
| CN114164747A (en) * | 2021-12-21 | 2022-03-11 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure collaborative stress structure for bridge widening |
| CN114164747B (en) * | 2021-12-21 | 2023-11-03 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure cooperative stress structure for bridge widening |
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| Publication number | Publication date |
|---|---|
| CN104631317B (en) | 2017-04-26 |
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