CN105401514B - Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge - Google Patents
Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge Download PDFInfo
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- CN105401514B CN105401514B CN201510683831.8A CN201510683831A CN105401514B CN 105401514 B CN105401514 B CN 105401514B CN 201510683831 A CN201510683831 A CN 201510683831A CN 105401514 B CN105401514 B CN 105401514B
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- prismatoid
- hollow
- beam bridge
- plate
- slab
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Abstract
The invention relates to an upper portion structure of a prefabricated trapezoidal three-support hollow board beam bridge. The upper portion structure of the beam bridge comprises the trapezoidal hollow board (1) formed by alternatively splicing a plurality of long bottom sides and short bottom sides, and the trapezoidal hollow board (1) is arranged on a lower portion structure of the beam bridge through two supports (2) arranged on the long bottom side of the bottom face and a support (2) arranged on the short bottom side of the bottom face. Compared with the prior art, the upper portion structure of the prefabricated trapezoidal three-support hollow board beam bridge has the beneficial effects that the support disengaging phenomenon is avoided, a trapezoidal hollow board is simply prefabricated, the beam bridge construction efficiency is high, and economy, durability and driving comfort are excellent.
Description
Technical field
The present invention relates to science of bridge building field, especially relate to a kind of prefabrication and assembly construction trapezoidal three abutments Hollow Slab Beam Bridge top
Structure.
Background technology
Seat empty, Bearing Seat Force be uneven and be the FAQs of Hollow Slab Beam Bridge the problems such as prefabricated panel vibration, these
Problem all not only can affect the casting quality of shear connector mortar, also can accelerate the cracking of shear connector.Miller's (1998) is complete
Bridge test show the cracking of shear connector first from the beginning of near bearing (miller, r.a., g.m.hlavacs, t.w long,
“testing of full scale prestressed beams to evaluate shear key performance,”
report#fhwa/oh-98/019state job#14578(0).).
The precoated plate of the Hollow Slab Beam Bridge of China adopts rectangle hollow precast plate girder at present, using sheet-type support four-point supporting
Mode, this mode often due to construction in various errors make seat empty, lead to precoated plate " three lower limb stress ",
So that construction and operation in Bearing Seat Force with design when inconsistent.This seat empty not only results in precoated plate and is installing
During vibrate, and then affect hinge seam concrete pouring quality, also can aggravate simultaneously operation during hollow slab girder
The vibration of bridge, thus accelerate the destruction of laterally wet seam.
Chinese patent 201510057610.x discloses a kind of hollow slab girder bridge construction, comprises: several are stitched together
Hollow slab girder, wherein said hollow slab girder comprises rectangular body；The top of rectangular body has each extended over little choosing to two sides
Arm reinforcing bar；The end of rectangular body is provided with crossbeam reinforcing bar；The little of described adjacent hollow slab girder chooses filling after arm bar connecting
Concrete, forms the cast-in-place seam of floorings, adjacent hollow slab girder is linked together；The crossbeam of described adjacent hollow slab girder
Fill concrete after bar connecting, forms cast-in-place crossbeam seam, adjacent hollow slab girder is linked together.This patent is by bridge
Overall uniform force is scattered in each hollow slab girder although the overall stress performance of bridge can preferably be ensured, but for single
Hollow slab girder for, again without solving the problems, such as that rectangle plate-girder is easily caused seat empty.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide a kind of prefabrication and assembly construction trapezoidal
Three abutments Hollow Slab Beam Bridge superstructure.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction, this beam bridge superstructure includes multiple long bottoms
Side, short base replace assembled prismatoid cored slab, and described prismatoid cored slab is by being arranged at the long base in its bottom surface
A bearing at two bearings, short base is arranged on beam bridge substructure.
Described prismatoid cored slab includes prismatoid plate main body, and the minor face sealing prismatoid plate main body two ends respectively
Head plate and long banding head plate, by upper plate, lower shoe and two blocks of webs are prefabricated is integrally formed for this prismatoid plate main body, and internal
Hollow forms inner chamber.
Described prismatoid cored slab includes being arranged on the side plate in beam bridge two outside and the middle plate being arranged between two side plates,
Described side plate is corresponding with beam bridge species and assembled with middle plate prismatoid plate, and described middle plate is that isosceles trapezoid body is hollow
Plate, when bridge is for right bridge, side plate is rectangular prismatoid cored slab, when bridge is for skew bridge, side plate can flexibly adopt etc.
Waist prismatoid cored slab or general prismatoid cored slab.
Pass through between two adjacent prismatoid cored slabs laterally just to have connect or be laterally hinged with assembly, preferably steel is added by wet seam
The form of muscle is attached.
Described prismatoid cored slab is prepared from by long line prefabrication, and this long line prefabrication comprises the following steps:
A () presses the construction laying template of prismatoid cored slab, form hollow template die, multiple hollow template dies are using laterally " short
Base Lin Chang base ", the mode on longitudinal " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, by placed longitudinally phase
Prestress wire in adjacent two hollow template dies forms broken line in hollow template die end by steering gear, trapezoidal to hollow template die
Phosphor bodies part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle, then pour into a mould minor face head plate and long banding again
Head plate, to be formed after obtain required prismatoid cored slab.
Described prismatoid cored slab is prepared from by circular prefabricated place, including following preparation process:
A () presses the construction laying template of prismatoid cored slab, form hollow template die, multiple hollow template dies are in circular precasting yard
The interior mode using " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, the ladder to hollow template die
Body main part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle, pour into a mould minor face head plate and long banding head plate, treat
Required prismatoid cored slab is obtained after molding.
Two kinds of preparation methoies of above-mentioned prismatoid cored slab, especially circular prefabricated place preparation method, can sufficiently utilize
Prefabricated place, treatment in accordance with local conditions, quickly prefabricated obtains prismatoid cored slab.
The present invention makes beam bridge by the prismatoid cored slab assembly of the three abutments using prefabrication and assembly construction, empty compared to rectangle
Heart precoated plate, it is a statically determinate structure that prismatoid cored slab adopts the cored slab of supported at three point, and Bearing Seat Force is not subject to construction error
Impact, can make the stress of bearing definitely, be not in the phenomenon of seat empty simultaneously, and rectangle hollow precoated plate is four
A point-supported redundant structure, when using laminated rubber bearing, because bearing cannot provide pulling force, misses when construction
When difference or precoated plate deformation, seat empty phenomenon will occur, be further applied load at the bearing coming to nothing and will necessarily cause precoated plate
Rigid Body in Rotation With, is unfavorable for stablizing of beam bridge.Further, since using the plane form of prismatoid, can effectively reduce prismatoid
The end reaction of short brink single support is thus reduce the area of bearing, and then reduces in the seating plane producing because beam body is reversed
Non-homogeneous stress.
Additionally, for the prismatoid cored slab of the present invention, arranging double support at long base, prismatoid can be improved
The anti-twisting property of cored slab, is therefore constructing and is runing the torsion angle very little producing under load, width=corner × radius can by turning
Know in the case of corner very little, even if the radius of gyration increased, turning width also can very little.Although and at minor face anti-twisting property
Weaker, but due to length of side very little, the torsional moment also very little that external load produces, thus corner also can very little, at minor face
Radius of gyration very little, therefore elastic rotation amplitude also can very little.The trapezoidal three abutments cored slab of the present invention not only eliminates tradition
The Rigid Body in Rotation With of cored slab, and reduce elastic rotation amplitude, such that it is able to reduce the vibration of precoated plate to greatest extent.
Compared with prior art, the prismatoid three abutments Hollow Slab Beam Bridge superstructure of the present invention can prevent out in operation
The seat empty disease of existing traditional four bearing rectangle hollow plate girder bridges, prevents beam bridge because of seat empty generation beam bridge vibration to beam
The connection of bridge body causes damage, and prismatoid cored slab can adopt the construction method of " prefabrication, assembled in situ ", efficiency of construction
Height, place needed for prefabrication is less, low cost, thus it is comfortable to improve the economy of Hollow Slab Beam Bridge, durability and driving
Property.
Brief description
Fig. 1 is the structural representation of the orthogonal Hollow Slab Beam Bridge superstructure in embodiments of the invention 1；
Fig. 2 is the structural representation of the Skewed Hollow Slab Beam Bridge superstructure in embodiments of the invention 2；
Fig. 3 is the structural representation of the isosceles trapezoid body cored slab of the present invention；
Fig. 4 is the section structure schematic diagram of the isosceles trapezoid body cored slab of the present invention；
Fig. 5 is the structural representation of the rectangular prismatoid cored slab of the present invention；
Fig. 6 is the section structure schematic diagram of the rectangular prismatoid cored slab of the present invention；
Fig. 7 is the construction schematic diagram of the long line prefabrication of the present invention；
Fig. 8 is the prefabricated construction schematic diagram in the prefabricated place of circle of the present invention；
In figure, 1- prismatoid cored slab, 2- bearing, the wet seam of 3-, 4- inner chamber, 5- web, 6- minor face head plate, the long side of 7-
Head plate, 8- upper plate, 9- lower shoe, 10- steering gear, 11- prestressed strand.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction, its structure is as shown in figure 1, this beam bridge top knot
Structure includes eight long bases, short base and replaces assembled prismatoid cored slab 1, and prismatoid cored slab 1 is by being arranged on its bottom surface
It is provided with two bearings 2 at upper bottom edge, be provided with a bearing 2 at bottom and be arranged on substructure of beam bridge, prismatoid is hollow
Plate 1 includes being arranged on two pieces outside the beam bridge rectangular prismatoid cored slabs as side plate, its structure as shown in Figure 5 and Figure 6, with
And be arranged on six pieces of isosceles trapezoid body cored slabs between two rectangular prismatoid cored slabs, its structure as shown in Figure 3 and Figure 4, ladder
Body cored slab 1 includes prismatoid plate main body, this prismatoid plate main body by minor face head plate 6, long banding head plate 7, upper plate 8,
Lower shoe 9 and two blocks of webs 5 are prefabricated is integrally formed, and inner hollow forms trapezoidal intracoelomic cavity 4, adjacent two prismatoid cored slabs
Connected by wet seam 3 between 1.
Prismatoid cored slab 1 is prepared from by long line prefabrication, as shown in fig. 7, this long line prefabrication includes following step
Rapid:
A () presses the construction laying template of prismatoid cored slab, form hollow template die, multiple hollow template dies are using laterally " short
Base Lin Chang base ", the mode on longitudinal " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, by placed longitudinally phase
Prestress wire in adjacent two hollow template dies forms broken line, the ladder to hollow template die in hollow template die end by steering gear 10
Body main part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle 11, then pour into a mould minor face head plate and long side again
Head plate, to be formed after obtain required prismatoid cored slab.
Embodiment 2
A kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction, its structure is as shown in Fig. 2 this beam bridge top knot
Structure includes six long bases, short base and replaces assembled prismatoid cored slab 1, and prismatoid cored slab 1 is by being arranged on its bottom surface
It is provided with two bearings 2 at upper bottom edge, be provided with a bearing 2 at bottom and be arranged on substructure of beam bridge, prismatoid is hollow
Plate 1 includes being arranged on two pieces of isosceles trapezoid body cored slabs as side plate outside beam bridge two, its structure referring to shown in Fig. 3 and Fig. 4,
And be arranged between two side plates four pieces as in plate isosceles trapezoid body cored slab, prismatoid cored slab 1 includes prismatoid
Plate main body, this prismatoid plate main body is prefabricated by minor face head plate 6, long banding head plate 7, upper plate 8, lower shoe 9 and two blocks of webs 5
It is integrally formed, and inner hollow forms trapezoidal intracoelomic cavity 4, is connected by wet seam 3 between two adjacent prismatoid cored slabs 1.
Described prismatoid cored slab is prepared from by circular prefabricated place, as shown in figure 8, including following preparation step
Rapid:
A () presses the construction laying template of prismatoid cored slab, form hollow template die, multiple hollow template dies are in circular precasting yard
The interior mode using " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, the ladder to hollow template die
Body main part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle 11, pour into a mould minor face head plate and long banding head plate,
Required prismatoid cored slab is obtained after to be formed.
Embodiment 3
A kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction, this beam bridge superstructure includes six long bottoms
Side, short base replace assembled prismatoid cored slab 1, and prismatoid cored slab 1 is provided with two by being arranged at its bottom surface upper bottom edge
Individual bearing 2, is provided with a bearing 2 and is arranged on substructure of beam bridge, prismatoid cored slab 1 includes being arranged on beam at bottom
As two pieces of general prismatoid cored slabs of side plate outside bridge two, and be arranged between two side plates four pieces as in plate etc.
Waist prismatoid cored slab, prismatoid cored slab 1 includes prismatoid plate main body, and this prismatoid plate main body is by minor face head plate 6, long side
Head plate 7, upper plate 8, lower shoe 9 and two blocks of webs 5 are prefabricated is integrally formed, and inner hollow forms trapezoidal intracoelomic cavity 4, adjacent
Two prismatoid cored slabs 1 between connected by wet seam 3.
Described prismatoid cored slab is prepared from by circular prefabricated place, including following preparation process:
A () presses the construction laying template of prismatoid cored slab, form hollow template die, multiple hollow template dies are in circular precasting yard
The interior mode using " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, the ladder to hollow template die
Body main part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle 11, pour into a mould minor face head plate and long banding head plate,
Required prismatoid cored slab is obtained after to be formed.
The above-mentioned description to embodiment is to be understood that and use invention for ease of those skilled in the art.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
, according to the announcement of the present invention, the improvement made without departing from scope and modification all should be the present invention's for field technique personnel
Within protection domain.
Claims (6)
1. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction is it is characterised in that this beam bridge superstructure includes
Multiple long bases, short base replace assembled prismatoid cored slab (1), and described prismatoid cored slab (1) is by being arranged on it
A bearing (2) at two bearings (2) at the long base in bottom surface, short base is arranged on beam bridge substructure.
2. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction according to claim 1 it is characterised in that
Described prismatoid cored slab (1) includes prismatoid plate main body, and the minor face end socket sealing prismatoid plate main body two ends respectively
Plate (6) and long banding head plate (7), this prismatoid plate main body is by upper plate (8), lower shoe (9) and the prefabricated one of two pieces of webs (5)
Molding, and inner hollow forms inner chamber (4).
3. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction according to claim 1 it is characterised in that
Described prismatoid cored slab (1) includes being arranged on the side plate in beam bridge two outside and the middle plate being arranged between two side plates, described
Side plate be corresponding with beam bridge species and assembled with middle plate prismatoid plate, described middle plate is isosceles trapezoid body cored slab.
4. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction according to claim 1 it is characterised in that
Connected by wet seam (3) between two adjacent prismatoid cored slabs (1).
5. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction according to claim 2 it is characterised in that
Described prismatoid cored slab (1) is prepared from by long line prefabrication, and this long line prefabrication comprises the following steps:
A () presses the construction laying template of prismatoid cored slab (1), form hollow template die, multiple hollow template dies are using horizontal " short bottom
Side Lin Chang base ", the mode on longitudinal " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, by placed longitudinally adjacent two
Prestress wire in hollow template die forms broken line in hollow template die end by steering gear (10), trapezoidal to hollow template die
Phosphor bodies part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle (11), then pour into a mould minor face head plate (6) and long side again
Head plate (7), to be formed after obtain required prismatoid cored slab (1).
6. a kind of trapezoidal three abutments Hollow Slab Beam Bridge superstructure of prefabrication and assembly construction according to claim 2 it is characterised in that
Described prismatoid cored slab (1) is prepared from by circular prefabricated place, including following preparation process:
A () presses the construction laying template of prismatoid cored slab (1), form hollow template die, multiple hollow template dies are in circular precasting yard
The interior mode using " short base Lin Duan base, long base Lin Chang base " is placed；
B () assembling reinforcement on request in hollow template die, re-lays prestress wire tensioning, the prismatoid to hollow template die
Main part cast concrete maintenance；
After the completion of (c) maintenance, form removal, and put tension prestress steel bundle (11), pour into a mould minor face head plate (6) and long banding head plate
(7) obtain required prismatoid cored slab (1) after, to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683831.8A CN105401514B (en) | 2015-10-20 | 2015-10-20 | Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683831.8A CN105401514B (en) | 2015-10-20 | 2015-10-20 | Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105401514A CN105401514A (en) | 2016-03-16 |
| CN105401514B true CN105401514B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510683831.8A Expired - Fee Related CN105401514B (en) | 2015-10-20 | 2015-10-20 | Upper portion structure of prefabricated trapezoidal three-support hollow board beam bridge |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869007A (en) * | 2017-04-07 | 2017-06-20 | 中国矿业大学 | A kind of single span simply supported girder bridge structure suitable for the sinking land in coalmining areas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100563718B1 (en) * | 2003-06-11 | 2006-03-28 | 주식회사 국민씨아이 | Installation Method of Deck for Girder Bridges Using Precast Panel of Trapezoidal Hollow Section Made with Glass Fiber Reinforced Composites |
| CN1566535A (en) * | 2003-06-12 | 2005-01-19 | 北京建达道桥咨询有限公司 | Wide breadth hollow slab and method for using the same |
| CN201865037U (en) * | 2010-09-29 | 2011-06-15 | 郑州大学 | Assembly type hollow slab bridge transferring force by adopting bracket instead of ribbet |
| CN202031041U (en) * | 2011-03-31 | 2011-11-09 | 刘山健 | Oblique-crossing precast assembled reinforced concrete culvert |
| KR101582611B1 (en) * | 2013-12-12 | 2016-01-19 | 한국건설기술연구원 | Slab gap adjustment apparatus with longitudinal moving and bridge construction method therewith |
| CN104233942B (en) * | 2014-09-28 | 2017-01-18 | 浙江大学 | Method for enhancing overall stress on assembled type heterotropic pre-stress hollow slab beam bridge |
| CN104631317B (en) * | 2015-02-04 | 2017-04-26 | 上海市政工程设计研究总院（集团）有限公司 | Hollow plate girder bridge structure and construction process thereof |
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