CN107988857A - A kind of semifixed continuous beam of straddle-type monorail - Google Patents
A kind of semifixed continuous beam of straddle-type monorail Download PDFInfo
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- CN107988857A CN107988857A CN201711215212.1A CN201711215212A CN107988857A CN 107988857 A CN107988857 A CN 107988857A CN 201711215212 A CN201711215212 A CN 201711215212A CN 107988857 A CN107988857 A CN 107988857A
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- seat board
- track girder
- straddle
- bridge pier
- semifixed
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of semifixed continuous beam of straddle-type monorail, including track girder (1), bridge pier (2), basic (3) and cast-in-site stripe (7), a beam section is connected into by the cast-in-site stripe (7) between some adjacent orbit beams (1), beam seam (4) is equipped between the track girder (1) and adjacent track girder (1) at the beam section both ends, and separately it is fixed on the bridge pier (2), described beam section one end has movable bearing support (5), the other end is equipped with hold-down support (6), hold-down support (6) is set under the track girder (1) among the beam section, it is equipped with the movable bearing support (5) and the hold-down support (6) and heightens stud (508).The semifixed continuous beam of straddle-type monorail of the present invention, movable bearing support add the linear controllability of track girder, and hold-down support adds track rigidity, and that heightens stud causes longitudinal continuously adjustable.
Description
Technical field
It is semifixed more particularly, to a kind of straddle-type monorail the invention belongs to rail traffic bridge technical field of structures
Continuous beam.
Background technology
Straddle-type monorail, refers to by single rail to support, stablizes and is oriented to, car body straddles the iron run on track girder
Road.Straddle-type monorail feature is adaptable, noise is low, radius of turn is small, climbing capacity is very strong.
The structural system that straddle type monorail rail tracks use mainly has：Three kinds of simply supported beam, continuous beam and continuous rigid frame.Freely-supported
Beam is statically determinate structure, referring to Fig. 1, stress it is simple and it is linear can according to circumstances be adjusted, there is no Cast-in-Situ Segment to reduce in structure existing
Field workload；Continuous beam is redundant structure, and referring to Fig. 2, overall stiffness is larger, and across can be strong compared with simply supported beam, structural joint be few, OK
Car comfort is preferable；Continuous rigid frame abutment pier also has Cast-in-Situ Segment, and overall stiffness is bigger than continuous beam, referring to Fig. 3.
But above-mentioned three kinds of structural system all existing defects：Simply supported beam rigidity is small, globality and span ability are poor, structure
Stitch it is more cause road-ability to be reported to the leadship after accomplishing a task, bearing is more, and LFM signal is complicated, and maintenance workload is larger；Although continuous beam
Pier top Cast-in-Situ Segment is added, but structure overall stiffness is poor compared with continuous rigid frame, and fixed abutment bears one longitudinal force, bridge pier structure
Size is larger；Pier stud is rigidly connected with track girder in continuous rigid frame, and force majeure factor then bridge is such as run into during operation
Sedimentation etc. deformation, can not adjust it is linear, replace track girder cost it is big, time-consuming.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, it is semifixed continuous that the present invention provides a kind of straddle-type monorail
Beam, part beam are equipped with cast-in-site stripe in stitching, and reduce the quantity of beam seam, and train driving comfort is improved；Semifixed continuous beam
Cast-in-site stripe lower end is set to hold-down support, which overcomes the problem of bridge pier size needed for continuous beam hold-down support lower end is big；
By setting movable bearing support spaced apart, the shortcoming that continuous rigid frame can not adjust during operation is overcome.Movable bearing support
Stud is heightened with being used in hold-down support, not only so that bearing longitudinal stress is more uniform, while can realize track girder
Vertical height continuously adjusts.
To achieve these goals, the present invention provides a kind of semifixed continuous beam of straddle-type monorail, including track girder, bridge
Pier, basis and cast-in-site stripe, it is characterised in that the bridge pier is arranged on the basis, and the track girder segmentation is arranged on the bridge
On pier, a beam section is connected into by the cast-in-site stripe between some adjacent orbit beams；
Beam is equipped between the track girder and adjacent track girder at the beam section both ends to stitch, and is separately fixed on the bridge pier
On, described beam section one end has movable bearing support, and for increasing the linear adjustability of track girder, the other end is equipped with hold-down support, institute
State and be set to hold-down support under the track girder among beam section, for making the bridge pier uniform force, to reduce the ruler of bridge pier
It is very little；
Lower seat board and bottom plate are equipped with the movable bearing support and the hold-down support, the lower end of the lower seat board is equipped with circle
Cylindrical hole, the cylindrical hole inner wall are equipped with helicitic texture, and on the bottom plate, the upper end is arranged on for the stud lower end of heightening
It is whole to improve bearing for the power above track girder to be evenly transferred to bridge pier by heightening stud in the cylindrical hole
Body uniform force, is connected by the stud of heightening with the thread fitting of the cylindrical hole inner wall, for rotating the tune
High stud realizes step-less adjustment of the track in longitudinal height.
Further, the movable bearing support and the hold-down support further include upper base plate, middle seat board and seat board, the seat of honour
Plate bottom is equipped with opening, and the middle seat board is arranged in the opening, and the middle seat board has lower seat board, the lower seat board upper end
It is buckled in the opening of the upper base plate, one end of the middle seat board is horizontal structure, and the other end is protruding cylinder surface structure, described
The lower seat board one side adjacent with the middle seat board is equipped with fluted column face structure, and the horizontal structure on the inside of the upper base plate with being all provided with
There is plane sliding block, be used for realization the horizontal slip of beam body, be equipped with the protruding cylinder surface structure and fluted column face structure
Cylinder sliding block.
Further, buckle structure is equipped between the lower seat board and the upper base plate, is equipped with and turns in the buckle structure
Movable slider.
Further, limited block is equipped with the hold-down support, the limited block is located on the lower seat board.
Further, the upper surface of the bottom plate is equipped with inclination-proof device, and the inclination-proof device bottom is fixed on the bottom plate
Surface on, the inclination prevention structure top be arranged on the lower seat board in.
Further, the stud of heightening is equipped with driving hole.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
(1) the semifixed continuous beam of straddle-type monorail of the present invention, part beam are equipped with cast-in-site stripe in stitching, and reduce the number of beam seam
Amount, train driving comfort are improved；Semifixed continuous beam cast-in-site stripe lower end is set to hold-down support, which overcomes company
The problem of bridge pier size needed for continuous beam hold-down support lower end is big；By setting movable bearing support spaced apart, overcome continuous
The shortcoming that firm structure can not adjust during operation.
(2) used in the semifixed continuous beam of straddle-type monorail of the present invention, movable bearing support and hold-down support and heighten stud,
Not only so that bearing longitudinal stress is more uniform, while it can realize continuously adjusting for track girder vertical height.
(3) horizontal slider cylinder is used in the semifixed continuous beam of straddle-type monorail of the present invention, movable bearing support and hold-down support
It is more smooth that sliding block and turning block make it that horizontal level is adjusted, and the plane on the plane sliding block and horizontal structure on upper base plate is slided
Block forms flat frictional pair together, realizes the horizontal sliding of beam body.
Brief description of the drawings
Fig. 1 is three across simple beam structure schematic diagram in the prior art；
Fig. 2 is the prior art three across a beam structure schematic diagram；
Fig. 3 is the prior art three across a continuous steel frame structure diagram；
Fig. 4 is a kind of semifixed beam structure schematic diagram of straddle-type monorail of the embodiment of the present invention；
Fig. 5 is the front view of movable bearing support；
Fig. 6 is the side view of movable bearing support；
Fig. 7 is the front view of hold-down support；
Fig. 8 is the side view of hold-down support.
In all attached drawings, the identical structure of same reference numeral expression and part, wherein：1- track girders, 2- bridge piers, 3-
Basis, 4- beams seam, 5- movable bearing supports, 6- hold-down supports, 7- cast-in-site stripes, 8- movable bearing supports, 9 hold-down supports；
Seat under seat board, 504- cylinders sliding block, 505- turning blocks, 506- in 501- upper base plates, 502- planes sliding block, 503-
Plate, 507- inclination-proof devices, 508- heighten stud, 509- bottom plates, 510- positioning gasket, 511- base boards, 512- tension crab-bolts；
613- limited blocks.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below that
Not forming conflict between this can be mutually combined.
Fig. 4 is a kind of semifixed beam structure schematic diagram of straddle-type monorail of the embodiment of the present invention.With three across one one
Illustrated exemplified by unit, the semifixed continuous beam of the straddle-type monorail includes track girder 1, bridge pier 2, basis 3, beam seam 4, activity branch
Seat 5, hold-down support 6 and cast-in-site stripe 7, are equipped with basis 3, basis 3 is equipped with bridge pier 2, and bridge pier 2 is equipped with interval of identical distance
Track girder 1, the longitudinal force that bridge pier 2 is used to bear track girder 1 plays the role of supporting track beam 1, between two adjacent orbit beams 1
Equipped with beam seam 4, bearing is equipped between track girder 1 and bridge pier 2, bearing includes movable bearing support 5 and hold-down support 6.Three across one, i.e.,
Two beams are equipped between three adjacent track girders and stitch 4, wherein filled with cast-in-site stripe 7, for the track girder 1 of three disconnections to be connected
A beam section is connected into, strengthens overall rigidity and integrality；Three across a both ends track girder and adjacent orbit beam it is separated,
And be fixedly connected on respectively by different bearings on same bridge pier, three pass through with four bridge piers successively across a binding beam from one end
Bearing is fixedly connected, and is respectively the first bearing, the second bearing, three abutments and the 4th bearing, and the first bearing is movable bearing support 5,
Be located at the adjacent orbit beam 1 on same bridge pier with it to be fixed on bridge pier 2 by hold-down support 6, the second bearing, three abutments and
4th bearing is hold-down support 6, and the second bearing and three abutments are each provided at the track girder junction equipped with cast-in-site stripe 7, with
The adjacent orbit beam 1 that four bearings are located on same bridge pier is fixed on bridge pier 2 by movable bearing support 5, and three bridge piers are born jointly
Longitudinal horizontal force, the longitudinal direction of structure and horizontal overall stiffness are improved, and the size on bridge pier and basis is small compared with simply supported beam.
Movable bearing support 5 adds the adjustability of track girder, and movable bearing support 5 is relative to work of the prior art in the present invention
Dynamic bearing 8 has done larger improvement, realizes the continuity of movable bearing support longitudinally adjust.Fig. 5 is the front view of movable bearing support.Figure
6 be the side view of movable bearing support.As shown in Figure 5 and Figure 6, which includes upper base plate 501, plane sliding block 502, middle seat board
503rd, cylinder sliding block 504, turning block 505, lower seat board 506, inclination-proof device 507, heighten stud 508, bottom plate 509, positioning pad
Piece 510, base board 511 and tension crab-bolt 512.Holder top is equipped with some embedded bars, and the embedded bar of holder top is used
It is connected in track, track is fixed on bearing, tension crab-bolt 512 is equipped with every embedded bar, tension crab-bolt 512 is solid
The upper surface of upper base plate 501 is scheduled on, 501 lower part of upper base plate is equipped with opening, and middle seat board 503 is arranged in the opening, middle seat board 503 1
It is protruding cylinder surface structure to hold as horizontal structure, the other end, and horizontal structure is opposite with 501 upper end inner surface of upper base plate, the horizontal junction
Structure is equipped with plane sliding block 502, and 501 upper end inner surface of upper base plate is equipped with plane sliding block 502, the plane sliding block on upper base plate 501
502 and horizontal structure on plane sliding block 502 form flat frictional pair together, realize the horizontal sliding of beam body.
Middle seat board 503 has lower seat board 506, and lower seat board 506 one side adjacent with middle seat board 503 is equipped with and protruding cylinder surface
The fluted column face structure that structure matches, the protruding cylinder surface structure are equipped with cylinder slide plate 504, which is equipped with
Cylinder slide plate 504, the cylinder slide plate 504 on cylinder slide plate 504 and fluted column face structure in protruding cylinder surface structure are formed together
Sphere friction is secondary, realizes the rotation of beam body.
The upper end of lower seat board 506 is arranged in the opening of upper base plate 501, and lower 506 both sides of seat board are buckled in upper base plate 501 and are open
It is interior, turning block 505 is equipped with the bayonet of both sides, the setting of the turning block 505 can coordinate the cylinder in protruding cylinder surface structure
Cylinder slide plate 504 on slide plate 504 and fluted column face structure forms sphere friction pair and realizes the smooth of beam body and upper base plate together
Rotate.
The lower lower section of seat board 506 is equipped with bottom plate 509, and the longitudinal profile of bottom plate 509 is inverted T-shaped, lower seat board 506 and bottom plate 509
Between separate and set, the upper surface of bottom plate 509 is equipped with inclination-proof device 507, which is fixed on bottom plate 509
On upper surface, the top of the inclination prevention structure 507 is arranged within lower seat board 506, and the setting of inclination prevention structure 507 can effectively prevent track
Tilt with bearing, so that stably track is located on the bridge pier of lower part.
Bottom plate 509 is equipped with cylindrical hole, which is helicitic texture, and lower seat board 506 corresponds to bottom plate 509
On cylindrical hole at be again provided with the cylindrical hole that inner wall is helicitic texture, heighten stud 508 for cylindrical structural, heighten spiral shell
The diameter of column 508 and the diameter of cylindrical hole match, which is helicitic texture, this heightens stud 508
One end is arranged in the cylindrical hole of bottom plate 509, and the other end is arranged in the cylindrical hole of lower seat board 506, and is heightened stud 508 and be located at
Position between lower seat board 506 and bottom plate 509 at partition is equipped with spanner jack, enables to adjusting to heighten by the effect of spanner
Stud 508 rotates so as to adjust the vertical height of bearing, realizes that the stepless continuous of vertical height is adjusted.Heighten stud 508
Tension and compression load can be transmitted, the non-uniform problem of existing cast steel pulling force bearing power transmission is overcome, improves the equal of bearing entirety stress
Even property.
The lower section of bottom plate 509 is equipped with base board 511, and the lower section of base board 511 is equipped with some tension crab-bolts 512, every tension anchor
Embedded bar is equipped with bolt 512, which is used to be connected with lower part bridge pier, so that bearing is fixed on lower part bridge pier
On.
Hold-down support 6 constrains length travel, lateral displacement, horizontal corner, only discharges longitudinal corner.Hold-down support 6 is opposite
It make a big improvement in hold-down support 9 of the prior art.Fig. 7 is the front view of hold-down support.Fig. 8 is the side view of hold-down support
Figure.As shown in Figure 7 and Figure 8, hold-down support also include upper base plate 501, plane sliding block 502, middle seat board 503, cylinder sliding block 504,
Turning block 505, lower seat board 506, inclination-proof device 507, heighten stud 508, bottom plate 509, positioning gasket 510,511 and of base board
Tension crab-bolt 512, and structure is identical with movable bearing support 5 with function, hold-down support 6 and movable bearing support 5 difference lies in, Gu
Determine bearing 6 and limited block 613 is equipped with lower seat board 506, for limiting cylinder slide plate 504 and fluted column in protruding cylinder surface structure
Cylinder slide plate 504 in the structure of face forms the secondary rotation of sphere friction, and 502 He of plane sliding block on upper base plate 501 together
Plane sliding block 502 on horizontal structure forms the horizontal slip of flat frictional pair, limitation lateral displacement and horizontal corner together.It is vertical
It is fixed to displacement by heightening stud 508.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of semifixed continuous beam of straddle-type monorail, including track girder (1), bridge pier (2), basic (3) and cast-in-site stripe (7), its
It is characterized in that, the bridge pier (2) is arranged on basic (3), and track girder (1) segmentation is arranged on the bridge pier (1),
A beam section is connected into by the cast-in-site stripe (7) between some adjacent orbit beams (1)；
Beam seam (4) is equipped between the track girder (1) and adjacent track girder (1) at the beam section both ends, and is separately fixed on described
On bridge pier (2), described beam section one end has movable bearing support (5), and for increasing the linear adjustability of track girder, the other end is equipped with solid
Determine bearing (6), hold-down support (6) be set under the track girder (1) among the beam section, for make the bridge pier (2) by
Power is uniform, to reduce the size of bridge pier；
Lower seat board (506) and bottom plate (509), the lower seat board are equipped with the movable bearing support (5) and the hold-down support (6)
(506) lower end is equipped with cylindrical hole, and the cylindrical hole inner wall is equipped with helicitic texture, and described stud (508) lower end of heightening is set
In on the bottom plate (509), the upper end is arranged in the cylindrical hole, for the power above track girder is equal by heightening stud
It is even to be delivered on bridge pier, to improve bearing entirety uniform force, heightened by described in stud (508) and the cylindrical hole
The thread fitting connection of wall, described heighten stud (508) and realizes step-less adjustment of the track in longitudinal height for rotating.
A kind of 2. semifixed continuous beam of straddle-type monorail according to claim 1, it is characterised in that the movable bearing support
(5) and the hold-down support (6) further includes upper base plate (501), middle seat board (503) and seat board (511)；
Upper base plate (501) bottom is equipped with opening, and the middle seat board (503) is arranged in the opening, the middle seat board (503)
Lower seat board (5056) is had, lower seat board (506) upper end is buckled in the opening of the upper base plate (501), the middle seat
One end of plate (503) is horizontal structure, and the other end is protruding cylinder surface structure, the lower seat board (506) and the middle seat board (503)
Adjacent one side is equipped with fluted column face structure, and the horizontal structure on the inside of the upper base plate (501) with being equipped with plane sliding block
(502), the horizontal slip of beam body is used for realization, cylinder cunning is equipped with the protruding cylinder surface structure and fluted column face structure
Block (504).
A kind of 3. semifixed continuous beam of straddle-type monorail according to claim 2, it is characterised in that the lower seat board (6)
Buckle structure is equipped between the upper base plate (1), turning block (5) is equipped with the buckle structure.
A kind of 4. semifixed continuous beam of straddle-type monorail according to claim 1 or 2, it is characterised in that the fixed branch
Limited block (613) is equipped with seat (6), the limited block (613) is located on the lower seat board (506).
5. the semifixed continuous beam of a kind of straddle-type monorail according to claim 1, it is characterised in that the bottom plate (9)
Upper surface is equipped with inclination-proof device (7), and inclination-proof device (7) bottom is fixed on the surface of the bottom plate (9), the anti-dumping knot
Structure (7) top is arranged in the lower seat board (6).
A kind of 6. mode tensile supporting seat for straddle-type monorail track step-less adjustment according to claim 1, it is characterised in that
The stud (8) of heightening is equipped with driving hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215212.1A CN107988857B (en) | 2017-11-28 | 2017-11-28 | Straddle type monorail semi-fixed continuous beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215212.1A CN107988857B (en) | 2017-11-28 | 2017-11-28 | Straddle type monorail semi-fixed continuous beam |
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| Publication Number | Publication Date |
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| CN107988857A true CN107988857A (en) | 2018-05-04 |
| CN107988857B CN107988857B (en) | 2023-08-25 |
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| CN201711215212.1A Active CN107988857B (en) | 2017-11-28 | 2017-11-28 | Straddle type monorail semi-fixed continuous beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109750592A (en) * | 2018-09-26 | 2019-05-14 | 中铁十八局集团第二工程有限公司 | The connection structure of bridge pier and bridge at bridge expanssion joint |
| CN109853357A (en) * | 2018-12-26 | 2019-06-07 | 广州地铁设计研究院股份有限公司 | A kind of scalable half freely-supported is semicontinuous can spliced girder |
| WO2022045987A1 (en) * | 2020-08-27 | 2022-03-03 | Sino-Thai Engineering & Construction Public Company Limited | Continuous beam monorail structure and installation method |
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| CN109853357A (en) * | 2018-12-26 | 2019-06-07 | 广州地铁设计研究院股份有限公司 | A kind of scalable half freely-supported is semicontinuous can spliced girder |
| WO2022045987A1 (en) * | 2020-08-27 | 2022-03-03 | Sino-Thai Engineering & Construction Public Company Limited | Continuous beam monorail structure and installation method |
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|---|---|
| CN107988857B (en) | 2023-08-25 |
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