CN108277733A - The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted - Google Patents
The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted Download PDFInfo
- Publication number
- CN108277733A CN108277733A CN201810094121.5A CN201810094121A CN108277733A CN 108277733 A CN108277733 A CN 108277733A CN 201810094121 A CN201810094121 A CN 201810094121A CN 108277733 A CN108277733 A CN 108277733A
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- Prior art keywords
- box girder
- small
- section
- small box
- girder bridge
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
Abstract
The present invention proposes a kind of small fabricated box girder bridge and preparation method thereof that can be resisted hinge seam deterioration and influence, and innovation is：Web beam is set in the middle part of the axial direction of small fabricated box girder bridge, and for web beam by multiple small box girder lateral direction penetratings, the corresponding region in single small box girder chamber is reinforced crossbeam filling；Be provided with multiple mounting holes in web beam, the axial direction of mounting hole and small box girder it is horizontally-parallel, steel beam mounting hole penetrates through web beam；It is provided with bellows in mounting hole, prestressed strand is provided in bellows, the end of prestressed strand is fixed on the side wall of small fabricated box girder bridge.The method have the benefit that：A kind of small fabricated box girder bridge and preparation method thereof that can be resisted hinge seam deterioration and influence is provided, the program can greatly improve the holistic resistant behavior and durability of small fabricated box girder bridge.
Description
Technical field
The present invention relates to a kind of small fabricated box girder bridge structure technologies more particularly to a kind of hinge seam that can resist to deteriorate influence
Small fabricated box girder bridge and preparation method thereof.
Background technology
Small fabricated box girder bridge is a kind of common bridge type, and the superstructure of this kind of bridge is generally by multiple prefabricated
Small box girder is horizontally-spliced to be formed；To ensure that there is reliable lateral connection rigidity between each small box girder, make bridge superstructure
Under outer load action can whole stress, and the distribution of force on each small box girder is made to be more uniformly distributed, prevents a certain small case
Beam stress is excessive, generates excessive vertical displacement, jeopardizes the safety and military service performance of bridge superstructure, needs in each small case
Reliable lateral ties construction is set between beam.
In the prior art, lateral ties construction above-mentioned is most commonly seen with middle diaphragm, such as《Highway reinforced concrete and pre-
Prestressed concrete bridges and culverts design specification》Regulation in (D62-2004 JTG), box section beam bridge must be provided with end diaphragm, curved
Intermediate diaphragm (span centre diaphragm) should be arranged in box girder bridge；Existing span centre diaphragm is interior in small box girder chamber (namely inner cavity) to be
It interrupts, is equivalent to diaphragm plate that only connect adjacent small box girder, discrete, force modes are not by curved beam, and tradition
Span centre tabula cantilever thickness be usually no more than 20cm, using constructional reinforcement, the reinforcing bar of cast-in-place wet seam crossing is often simply taken
Connect, continuous stress cannot be formed, be easy to cause small fabricated box girder bridge occur hinge seam longitudinal cracking disease, moreover, it is traditional across
Middle diaphragm construction does not have apparent restrictive function to hinge seam longitudinal cracking, causes the cracking of diaphragm itself instead；Hinge seam is vertical
Appearance to crack can not only reduce girder lateral stiffness, weaken lateral ties, also result in some durabilities such as steel bar corrosion
Problem, even resulting in prefabricated assembled small box girder bridge, laterally entirety is destroyed, and forms the extreme danger situation of single-beam stress.Cause
This, is for this endurance issues, a kind of small fabricated box girder bridge span centre lateral ties resisted hinge seam deterioration and influenced of research and development
Enhancing construction is very necessary, and durability and military service performance to this kind of bridge, which have, to be obviously improved and improvement result, and weight is generated
The social and economic benefit wanted.
Invention content
For the problems in background technology, the present invention proposes a kind of assembled small box girder that can be resisted hinge seam deterioration and influence
Bridge, the small fabricated box girder bridge are spliced by multiple small box girders, and innovation is：The axial direction of the small fabricated box girder bridge
Middle part is provided with web beam, and the web beam is by multiple small box girder lateral direction penetratings, the respective area in single small box girder chamber
Domain is reinforced crossbeam filling；Multiple mounting holes, the axial direction of mounting hole and horizontally-parallel, the steel of small box girder are provided in web beam
Beam mounting hole penetrates through web beam；It is provided with bellows in mounting hole, prestressed strand, prestress steel are provided in bellows
The end of beam is fixed on the side wall of small fabricated box girder bridge.
The principle of aforementioned structure is：Existing span centre diaphragm is to interrupt (namely small box girder in the chamber of small box girder
Chamber be hollow state), span centre diaphragm just corresponds to be the diaphragm plate for connect adjacent small box girder, to the whole cross of small box girder bridge
Booster action to rigidity is extremely limited；And the web beam of the present invention is by multiple small box girder lateral direction penetratings, in small box girder chamber
Corresponding region be also reinforced crossbeam filling, web beam is the equal of the continuous beam of multiple spot elastic bearing, can be greatly improved
The structural integrity of small box girder bridge；In addition, existing span centre diaphragm is normally only built by common steel bar stress, and the present invention
Inside web beam other than being provided with steel bar stress, it is also provided with prestressed strand, prestressed strand is to inhibiting to cut with scissors seam longitudinal direction
Cracking disease have the function of it is fairly obvious, experimental study show even if hinge seam completely destruction in the case of, each small box girder
It remains to keep good holistic resistant behavior, can effectively avoid the extreme case for single slab bearing occur, this kind of bridge can be made
Holistic resistant behavior and durability are greatly improved.
Preferably, the quantity of the mounting hole is two, two both sides up and down for being located at web beam.
Preferably, thickness of the web beam in small box girder axial direction is greater than or equal to 28cm.
Based on aforementioned structure scheme, the invention also provides a kind of production method of small fabricated box girder bridge, the assembly
Formula small box girder bridge is spliced by multiple small box girders, and innovation is：The method includes：
1) prefabricated multiple small box girders：In multiple small box girders of identical span, the small box girder positioned at outside is denoted as outer beam,
Small box girder positioned at middle part is denoted as inner beam；The side of the outer beam is provided with the first linkage section, be provided in the chamber of outer beam with
Corresponding region in outer spar-box room is stuffed entirely with by corresponding first filled section of the first connection fragment position, the first filled section, and first
Reserved steel bar head is provided on the outer end face of linkage section；The both sides of the inner beam are each provided with one second linkage section, the case of inner beam
The second filled section corresponding with the second connection fragment position is provided in room, the second filled section is complete by the corresponding region in inner beam chamber
Portion is filled, and reserved steel bar head is provided on the outer end face of the second linkage section；It is made of the first linkage section and the first filled section
Structure is denoted as the first strengthening segment, and multiple through-holes are provided in the first strengthening segment, and the axial direction of through-hole is horizontally-parallel with outer beam, leads to
Hole penetrates through the first strengthening segment, and bellows is provided in through-hole；The structure note being made of the second linkage section and the second filled section
For the second strengthening segment, it is provided with multiple through-holes in the second strengthening segment, horizontally-parallel, the through-hole perforation the of the axial direction of through-hole and inner beam
Two strengthening segments are provided with bellows in through-hole；The lead to the hole site one on lead to the hole site and the second strengthening segment in first strengthening segment
One corresponds to；
2) after bridge pier is set, will positioned at multiple small box girders of identical span lift in place, between adjacent small box girder there are
Gap；The first linkage section on outer beam is towards inner beam；
3) the reserved steel bar head binding on adjacent small box girder is integrated with connection reinforcing bar, then casting concrete, by phase
Gap filling between adjacent small box girder；The reinforced concrete structure body poured out between adjacent small box girder is denoted as seam section；It pours
When, the matched bellows in position on adjacent small box girder is interconnected by the pre-buried connection bellows in seam section, connection bellows；
After seam section solidification, the knot that is made of seam section, the first linkage section, the second linkage section, the first filled section and the second filled section
Structure body, that is, form web beam；
4) it is inserted in prestressed strand in bellows, tensioning is carried out to prestressed strand, after tensioning is good, by prestressed strand
End anchorage on the side wall of small fabricated box girder bridge.
The method have the benefit that：Provide it is a kind of can resist hinge seam deterioration influence small fabricated box girder bridge and
Its production method, the program can greatly improve the holistic resistant behavior and durability of small fabricated box girder bridge.
Description of the drawings
The end structure illustration of Fig. 1, small box girder bridge of the invention；
The diagrammatic cross-section of Fig. 2, small box girder bridge at web beam position；
Fig. 3, outer girder construction schematic diagram；
Fig. 4, inner beam structural schematic diagram；
The connected mode schematic diagram of Fig. 5, outer beam and inner beam；
Title in figure corresponding to each label is respectively：Small box girder 1, linkage section 1-1, filled section 1-2, web beam 2,
Prestressed strand 3, seam section 4.
Specific implementation mode
A kind of small fabricated box girder bridge that can be resisted hinge seam deterioration and influence, the small fabricated box girder bridge is by multiple small box girders
1 is spliced, and innovation is：The axial middle part of the small fabricated box girder bridge is provided with web beam 2, the web beam
2 by 1 lateral direction penetrating of multiple small box girders, and the corresponding region in 1 chamber of single small box girder is reinforced the filling of crossbeam 2；In web beam 2
It is provided with multiple mounting holes, the axial direction of mounting hole is horizontally-parallel with small box girder 1, and steel beam mounting hole penetrates through web beam 2；Peace
Dress is provided with bellows in hole, is provided with prestressed strand 3 in bellows, and it is small that the end of prestressed strand 3 is fixed on assembled
On the side wall of box girder bridge.
Further, the quantity of the mounting hole is two, two both sides up and down for being located at web beam 2.
Further, thickness of the web beam 2 in 1 axial direction of small box girder is greater than or equal to 28cm.
A kind of production method of small fabricated box girder bridge, the small fabricated box girder bridge are spliced by multiple small box girders 1,
Its innovation is：The method includes：
1) prefabricated multiple small box girders 1：In multiple small box girders 1 of identical span, the small box girder 1 positioned at outside is denoted as outer
Beam, the small box girder 1 positioned at middle part are denoted as inner beam；The side of the outer beam is provided with the first linkage section 1-1, is set in the chamber of outer beam
It is equipped with first filled section 1-2 corresponding with the first positions linkage section 1-1, the first filled section 1-2 is by the respective area in outer spar-box room
Domain is stuffed entirely with, and reserved steel bar head is provided on the outer end face of the first linkage section 1-1；The both sides of the inner beam are each provided with one
Two linkage section 1-1 are provided with second filled section 1-2 corresponding with the second positions linkage section 1-1, the second filling in the chamber of inner beam
Corresponding region in inner beam chamber is stuffed entirely with by section 1-2, and reserved steel bar head is provided on the outer end face of the second linkage section 1-1；
The structure being made of the first linkage section 1-1 and the first filled section 1-2 is denoted as the first strengthening segment, is provided in the first strengthening segment
Multiple through-holes, the axial direction of through-hole is horizontally-parallel with outer beam, and through-hole penetrates through the first strengthening segment, and bellows is provided in through-hole；By
The structure that second linkage section 1-1 and the second filled section 1-2 are formed is denoted as the second strengthening segment, is provided in the second strengthening segment more
A through-hole, the axial direction of through-hole and inner beam it is horizontally-parallel, through-hole penetrates through the second strengthening segment, and bellows is provided in through-hole；First
Lead to the hole site on lead to the hole site and the second strengthening segment in strengthening segment corresponds；
2) it after bridge pier is set, in place, will be stayed between adjacent small box girder 1 positioned at the lifting of multiple small box girders 1 of identical span
There is gap；The first linkage section 1-1 on outer beam is towards inner beam；
3) the reserved steel bar head binding on adjacent small box girder 1 is integrated with connection reinforcing bar, then casting concrete, by phase
Gap filling between adjacent small box girder 1；The reinforced concrete structure body poured out between adjacent small box girder 1 is denoted as seam section；It pours
When building, the pre-buried connection bellows in seam section, connection bellows mutually interconnects the matched bellows in position on adjacent small box girder 1
It is logical；After seam section solidification, by seam section, the first linkage section 1-1, the second linkage section 1-1, the fillings of the first filled section 1-2 and second
The structure that section 1-2 is formed, that is, form web beam 2；
4) it is inserted in prestressed strand 3 in bellows, tensioning is carried out to prestressed strand 3, after tensioning is good, by prestress steel
The end anchorage of beam 3 is on the side wall of small fabricated box girder bridge.
Further, thickness of the web beam 2 in 1 axial direction of small box girder is greater than or equal to 28cm.
Core of the invention innovative point is to be arranged web beam 2 and prestressed strand 3, thus the solution of the present invention only just with
Innovative point of the present invention is associated with content the most close and is described, other various aspects being related to during bridge construction are asked
Topic, those skilled in the art reference should also be made to correlation theory and design specification in the prior art.
Claims (5)
1. a kind of small fabricated box girder bridge that can be resisted hinge seam deterioration and influence, the small fabricated box girder bridge is by multiple small box girders
(1) it is spliced, it is characterised in that：The axial middle part of the small fabricated box girder bridge is provided with web beam (2), the reinforcement
By multiple small box girders (1) lateral direction penetrating, the corresponding region in single small box girder (1) chamber is reinforced crossbeam (2) and fills out crossbeam (2)
It fills；It is provided with multiple mounting holes, the axial direction of mounting hole and horizontally-parallel, the steel beam mounting hole of small box girder (1) in web beam (2)
Web beam (2) are penetrated through；It is provided with bellows in mounting hole, prestressed strand (3), prestressed strand are provided in bellows
(3) end is fixed on the side wall of small fabricated box girder bridge.
2. the small fabricated box girder bridge according to claim 1 that hinge seam deterioration can be resisted and influenced, it is characterised in that：The peace
The quantity for filling hole is two, two both sides up and down for being located at web beam (2).
3. the small fabricated box girder bridge according to claim 1 or 2 that hinge seam deterioration can be resisted and influenced, it is characterised in that：Institute
It states thickness of the web beam (2) in small box girder (1) axial direction and is greater than or equal to 28cm.
4. a kind of production method of small fabricated box girder bridge, the small fabricated box girder bridge is spliced by multiple small box girders (1),
It is characterized in that：The method includes：
1) prefabricated multiple small box girders (1)：In multiple small box girders (1) of identical span, the small box girder (1) for being located at outside is denoted as
Outer beam, the small box girder (1) for being located at middle part are denoted as inner beam；The side of the outer beam is provided with the first linkage section (1-1), the case of outer beam
It is provided with the first filled section (1-2) corresponding with the first linkage section position (1-1) in room, the first filled section (1-2) is by outer spar-box
Corresponding region in room is stuffed entirely with, and reserved steel bar head is provided on the outer end face of the first linkage section (1-1)；The two of the inner beam
Side is each provided with one second linkage section (1-1), and corresponding with the second linkage section position (1-1) second is provided in the chamber of inner beam
Corresponding region in inner beam chamber is stuffed entirely with by filled section (1-2), the second filled section (1-2), outside the second linkage section (1-1)
Reserved steel bar head is provided on end face；The structure being made of the first linkage section (1-1) and the first filled section (1-2) is denoted as
One strengthening segment is provided with multiple through-holes in the first strengthening segment, and the axial direction of through-hole is horizontally-parallel with outer beam, through-hole perforation first plus
Strong section is provided with bellows in through-hole；The structure being made of the second linkage section (1-1) and the second filled section (1-2) is denoted as
Second strengthening segment is provided with multiple through-holes, the axial direction of through-hole and horizontally-parallel, the through-hole perforation second of inner beam in the second strengthening segment
Strengthening segment is provided with bellows in through-hole；The lead to the hole site on lead to the hole site and the second strengthening segment in first strengthening segment is one by one
It is corresponding；
2) it after bridge pier is set, in place, will be stayed between adjacent small box girder (1) positioned at the lifting of multiple small box girders (1) of identical span
There is gap；The first linkage section (1-1) on outer beam is towards inner beam；
3) the reserved steel bar head binding on adjacent small box girder (1) is integrated with connection reinforcing bar, then casting concrete, it will be adjacent
Gap filling between small box girder (1)；The reinforced concrete structure body poured out between adjacent small box girder (1) is denoted as seam section；
When pouring, the pre-buried connection bellows in seam section connects bellows by the matched bellows phase in position on adjacent small box girder (1)
It is intercommunicated；After seam section solidification, by seam section, the first linkage section (1-1), the second linkage section (1-1), the first filled section (1-2)
The structure formed with the second filled section (1-2) forms web beam (2)；
4) it is inserted in prestressed strand (3) in bellows, tensioning is carried out to prestressed strand (3), after tensioning is good, by prestress steel
The end anchorage of beam (3) is on the side wall of small fabricated box girder bridge.
5. the production method of small fabricated box girder bridge according to claim 4, it is characterised in that：The web beam (2)
Thickness in small box girder (1) axial direction is greater than or equal to 28cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094121.5A CN108277733A (en) | 2018-01-31 | 2018-01-31 | The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094121.5A CN108277733A (en) | 2018-01-31 | 2018-01-31 | The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted |
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| CN108277733A true CN108277733A (en) | 2018-07-13 |
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| CN201810094121.5A Pending CN108277733A (en) | 2018-01-31 | 2018-01-31 | The small fabricated box girder bridge and preparation method thereof that hinge seam deterioration influences can be resisted |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403202A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | A kind of more block bent caps and its construction method |
| CN109403200A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | The construction method and its small box girder bridge of the small box girder bridge poured after a kind of partition |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001329510A (en) * | 2000-05-22 | 2001-11-30 | Sumitomo Constr Co Ltd | Precast segment and forming method for bridge girder using it |
| CN200974956Y (en) * | 2006-12-11 | 2007-11-14 | 毛旭秋 | Prestressed concrete box girder |
| CN201567530U (en) * | 2009-12-25 | 2010-09-01 | 万水 | Assembly-type combined box girder and component unit body |
| CN202298438U (en) * | 2011-11-11 | 2012-07-04 | 浙江大学 | Bidirectional pre-bent multi-beam type structure of small steel-concrete box girder bridge |
| CN204491397U (en) * | 2014-12-30 | 2015-07-22 | 上海浦东建筑设计研究院有限公司 | A kind of Mid and minor spans pretensioned prestressing steel bar concrete has just connect small box girder structure |
| CN107288024A (en) * | 2017-07-25 | 2017-10-24 | 武汉理工大学 | Assembled beam body and its construction method |
| CN206916603U (en) * | 2017-07-06 | 2018-01-23 | 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 |
-
2018
- 2018-01-31 CN CN201810094121.5A patent/CN108277733A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001329510A (en) * | 2000-05-22 | 2001-11-30 | Sumitomo Constr Co Ltd | Precast segment and forming method for bridge girder using it |
| CN200974956Y (en) * | 2006-12-11 | 2007-11-14 | 毛旭秋 | Prestressed concrete box girder |
| CN201567530U (en) * | 2009-12-25 | 2010-09-01 | 万水 | Assembly-type combined box girder and component unit body |
| CN202298438U (en) * | 2011-11-11 | 2012-07-04 | 浙江大学 | Bidirectional pre-bent multi-beam type structure of small steel-concrete box girder bridge |
| CN204491397U (en) * | 2014-12-30 | 2015-07-22 | 上海浦东建筑设计研究院有限公司 | A kind of Mid and minor spans pretensioned prestressing steel bar concrete has just connect small box girder structure |
| CN206916603U (en) * | 2017-07-06 | 2018-01-23 | 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 |
| CN107288024A (en) * | 2017-07-25 | 2017-10-24 | 武汉理工大学 | Assembled beam body and its construction method |
Non-Patent Citations (3)
| Title |
|---|
| 卜浩然等: "横向预应力对装配式梁桥刚度影响研究", 《低温建筑技术》 * |
| 沈项斌等: "提高连续小箱梁横向刚度加固方案研究", 《工程与建设》 * |
| 赵巧燕: "预制拼装小箱梁结构横隔板设置的影响分析", 《公路交通科技(应用技术版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403202A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | A kind of more block bent caps and its construction method |
| CN109403200A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | The construction method and its small box girder bridge of the small box girder bridge poured after a kind of partition |
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