CN102425081A - Span beam seam slip damping ballastless slab - Google Patents

Span beam seam slip damping ballastless slab Download PDF

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Publication number
CN102425081A
CN102425081A CN2011104131022A CN201110413102A CN102425081A CN 102425081 A CN102425081 A CN 102425081A CN 2011104131022 A CN2011104131022 A CN 2011104131022A CN 201110413102 A CN201110413102 A CN 201110413102A CN 102425081 A CN102425081 A CN 102425081A
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CN
China
Prior art keywords
bed board
slab
road bed
beam seam
ballastless
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Pending
Application number
CN2011104131022A
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Chinese (zh)
Inventor
畅德师
沈东升
魏周春
徐娟娟
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China Railway First Survey and Design Institute Group Ltd
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China Railway First Survey and Design Institute Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by China Railway First Survey and Design Institute Group Ltd filed Critical China Railway First Survey and Design Institute Group Ltd
Priority to CN2011104131022A priority Critical patent/CN102425081A/en
Publication of CN102425081A publication Critical patent/CN102425081A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a span beam seam slip damping ballastless slab. In the design of a curved large-span continuous beam ballastless track for a passenger special line, a rail overlapping device is not allowed to be used even though the temperature span length surpasses a certain standard. The span beam seam slip damping ballastless slab is provided with a slab body, wherein the bottom of the slab body is provided with a longitudinal limiting groove; a two-cloth one-film sliding layer is formed between the lower side of the slab body and a bridge surface; and liquid dampers are symmetrically arranged on the left and right sides of the two ends of the slab body respectively, and are connected with a sliding slab body and a fixed slab on the bridge surface through a head part joint bearing and a tail part joint bearing on both sides respectively. By adopting the span beam seam slip damping ballastless slab, the temperature additional force value of a seamless line track on a bridge and the temperature deformation value of a large beam seam can be lowered, and the arrangement of the rail overlapping device is avoided; the slab can slide longitudinally on the bridge and has enough length, so that the rail temperature additional force on expansion joints at the two ends is not overlapped; and the dampers can adapt to slow temperature expansion deformation on a slab seam to resist sudden track longitudinal force during train braking.

Description

Stride beam seam slip damp type and do not have tiny fragments of stone, coal, etc. road bed board
Technical field
The present invention relates to a kind of plate knot of ballast bed structure, being specifically related to a kind of beam seam slip damp type of striding does not have tiny fragments of stone, coal, etc. road bed board.
Background technology
In recent years, the special line for passenger trains construction has obtained huge achievement, because Line for Passenger Transportation makes that to the dependence of the linear ride comfort of circuit the use of curve continuous beam is more and more frequent, uses radius also more and more widely.In the big span continuous beam non-fragment orbit design of Line for Passenger Transportation shaped form, the regulation according to the tentative original text of high ferro standard even the temperature span length exceeds standard, does not allow to use rail overlapping device yet, makes the design difficulty of curve continuous beam increase greatly.
Summary of the invention
The purpose of this invention is to provide a kind of avoid in the design of the big span continuous beam of shaped form, using rail overlapping device, and effectively the beam seam slip damp type of striding of security system route shape ride comfort do not have tiny fragments of stone, coal, etc. road bed board.
The technical scheme that the present invention adopted is:
A kind of beam seam slip damp type of striding does not have tiny fragments of stone, coal, etc. road bed board, is provided with the bed board body, it is characterized in that:
The bottom of described road bed board body is provided with the longitudinal spacing groove consistent with the track circuit direction, and limited impression is corresponding with the shape of the positive stop lug boss that the bridge floor end face is provided with;
Be provided with two cloth, one film sliding layer between the boss that is provided with on the below of described road bed board body and bridge floor and the bridge floor;
Bed board body two ends, described road each side be symmetrically arranged with liquid condenser.
Described road bed board body is the armored concrete slab of the continuous reinforcement of cast in situs, and the embedding sleeper in plate top adopts general concrete double-block type pillow, bolster or short bolster.
Described two cloth, one film sliding layer is followed successively by upper strata geotextiles, geomembrane and lower floor's geotextiles from top to bottom.
The joint of head bearing of described liquid condenser through both sides and caudal articular process bearing respectively with sliding channel bed board body and bridge floor on fixedly the road bed board be connected.
The present invention has the following advantages:
The present invention can effectively reduce temperature additional force value and crossbeam seam place's temperature deformation value of jointless track on the bridge, thereby avoids being provided with the rail temperature expansion and cotraction regulator; The road bed board can be on bridge longitudinal sliding motion and have enough length, make the rail temperature additional force at place, shrinkage joint, two ends not superpose; Damper can adapt to the temperature dilatation at railway roadbed seam place slowly, the track longitudinal force that happens suddenly in the time of resisting owing to train braking simultaneously.
Description of drawings
Fig. 1 is a structure chart of the present invention.
Fig. 2 is a straight line location cross-sectional drawing of the present invention.
Fig. 3 is a curve of the present invention location cross-sectional drawing.
Fig. 4 is damper structure figure.
Among the figure, 1-joint of head bearing, 2-piston rod, 3-hydraulic cylinder; The 4-oil storage cylinder, 5-damping control valve, 6-stroke indicating graduation, 7-caudal articular process bearing; The 8-liquid condenser, 9-two cloth one film sliding layer, 10-positive stop lug boss, 11-road bed board body; The 12-bridge floor, the 13-sleeper, the 14-bridge floor is the road bed board fixedly.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is carried out detailed explanation.
A kind of beam seam slip damp type of striding of the present invention does not have tiny fragments of stone, coal, etc. road bed board; Be laid on the bridge floor top; The bridge floor end face is provided with the positive stop lug boss consistent with the track circuit direction 10, and its cross section perpendicular to orbital direction is a rectangle, and the present invention is provided with bed board body 11; Be the armored concrete slab of the continuous reinforcement of cast in situs, the embedding sleeper 13 in plate top adopts general concrete double-block type pillow, bolster or short bolster.The bottom of road bed board body 11 is provided with and the corresponding longitudinal spacing groove of positive stop lug boss 10 shapes, the corresponding lateral stability that can guarantee bed board that is provided with of positive stop lug boss 10 and limited impression.Be provided with two cloth, one film sliding layer 9 between the below of road bed board body 11 and the bridge floor 12; Two cloth, one film sliding layer 9 is followed successively by upper strata geotextiles, geomembrane and lower floor's geotextiles from top to bottom; The thickness of upper strata geotextiles is 2mm; The thickness of geomembrane is 1mm, and the thickness of lower floor's geotextiles is 3mm, and the bed board that is arranged so that of two cloth, one film sliding layer 9 can have certain move place on bridge floor 12.Bed board body 11 two ends, road each side be symmetrically arranged with liquid condenser 8.
Liquid condenser 8 is provided with by the cylindrical sleeve of two one-sided sealings and inserts the sealing shell that forms.The end that is positioned at inboard cylinder, be provided with hydraulic cylinder 3, and the outer setting of hydraulic cylinder 3 has oil storage cylinder 4, and hydraulic cylinder 3 is interconnected with oil storage cylinder 4, and hydraulic cylinder 3 bottoms are provided with damping control valve 5.The end that is positioned at the cylinder in the outside, be provided with piston rod 2, and piston rod 2 stretches into hydraulic cylinder 3, and the external diameter of the piston head that piston rod 2 ends are provided with is consistent with the internal diameter of hydraulic cylinder 3, and piston head is provided with the piston aperture.The outer wall that is positioned at inboard cylinder is provided with stroke indicating graduation 6.The joint of head bearing 1 of liquid condenser 8 through both sides and caudal articular process bearing 7 respectively with sliding channel bed board body 11 and bridge floor fixedly road bed board 14 be connected.Be full of the liquid thing in the hydraulic cylinder 3, when the relative distance between two sections road bed boards changed, two parts cylinder of forming liquid condenser 8 shells was drawn back; Piston head slowly moves; Liquid flows through the piston aperture, and at this moment liquid condenser 8 does not have resistance, has only very little frictional force; When the piston fast moving, the little bore closure of piston, liquid condenser 8 produces resistance, thus the motion of limited piston head.The distortion of liquid condenser 8 allowable temperatures can overcome braking force of train.The unexpected displacement that track took place when damper did not allow owing to train braking, but the distortion more slowly that the temperature ascending, descending of permission bridge and track structure produces does not have the longitudinal stability of tiny fragments of stone, coal, etc. road bed board to guarantee slidingtype.
The major parameter of liquid condenser 8 is following:
1, damper is out of shape (tension and compression) ≦ 2 ~ 5mm suddenly;
2, the unexpected distortion of single damper should provide anti-Li ≧ 250kN; (the sliding panel two ends respectively are provided with two dampers)
3, the slow rate of strain 2 ~ 6mm/ of damper normality hour, damper should not provide counter-force or have only very little resistance under this slow deformation state;
4, the stroke of damper is not less than ± 100mm under the slow deformation state of normality.

Claims (4)

1. stride beam seam slip damp type and do not have tiny fragments of stone, coal, etc. road bed board for one kind, be provided with bed board body (11), it is characterized in that:
The bottom of described road bed board body (11) is provided with the longitudinal spacing groove consistent with the track circuit direction, and limited impression is corresponding with the shape of the positive stop lug boss (10) that bridge floor (12) end face is provided with;
Be provided with two cloth, one film sliding layer (9) between the boss (10) that is provided with on the below of described road bed board body (11) and bridge floor (12) and the bridge floor;
Described road bed board body (11) two ends each side be symmetrically arranged with liquid condenser (8).
2. the beam seam slip damp type of striding according to claim 1 does not have tiny fragments of stone, coal, etc. road bed board, it is characterized in that:
Described road bed board body (11) is the armored concrete slab of the continuous reinforcement of cast in situs, and the embedding sleeper (13) in plate top adopts general concrete double-block type pillow, bolster or short bolster.
3. the beam seam slip damp type of striding according to claim 1 and 2 does not have tiny fragments of stone, coal, etc. road bed board, it is characterized in that:
Described two cloth, one film sliding layer (9) is followed successively by upper strata geotextiles, geomembrane and lower floor's geotextiles from top to bottom.
4. the beam seam slip damp type of striding according to claim 3 does not have tiny fragments of stone, coal, etc. road bed board, it is characterized in that:
The joint of head bearing (1) of described liquid condenser (8) through both sides and caudal articular process bearing (7) respectively with sliding channel bed board body (11) and bridge floor on fixedly the road bed board be connected.
CN2011104131022A 2011-12-10 2011-12-10 Span beam seam slip damping ballastless slab Pending CN102425081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104131022A CN102425081A (en) 2011-12-10 2011-12-10 Span beam seam slip damping ballastless slab

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Application Number Priority Date Filing Date Title
CN2011104131022A CN102425081A (en) 2011-12-10 2011-12-10 Span beam seam slip damping ballastless slab

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CN102425081A true CN102425081A (en) 2012-04-25

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343065A (en) * 2013-07-23 2015-02-11 深圳市地铁集团有限公司 Bridge track and constructing method thereof
CN105155412A (en) * 2015-10-20 2015-12-16 成都市新筑路桥机械股份有限公司 Embedded rail structure suitable for bridges, and construction method of embedded rail structure
CN106012695A (en) * 2016-06-24 2016-10-12 北京交通大学 Prefabricated elastic track bed structure with capacity of energy absorption
CN109235151A (en) * 2018-09-13 2019-01-18 中铁二院工程集团有限责任公司 Elastic long sleeper buried-type ballastless track structure on a kind of Railway Steel Truss Girder Bridges

Citations (9)

* Cited by examiner, † Cited by third party
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EP1258563B1 (en) * 2001-05-15 2005-01-12 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Ballastless railway track with elastically supported sound absorber elements
CN1916288A (en) * 2006-09-05 2007-02-21 武汉理工大学 Hybrid system for controlling longitudinal vibration reaction of girder of cable stayed bridge in float type
JP3984433B2 (en) * 2001-05-08 2007-10-03 財団法人鉄道総合技術研究所 Rail bearing support structure and vehicle track
CN101270568A (en) * 2007-11-06 2008-09-24 铁道第四勘察设计院 Rail plate technique for resolving rail bridge connection of crossbeam seam section
CN102121215A (en) * 2011-03-29 2011-07-13 中交第四公路工程局有限公司 Pre-tension paving method for slide layer of high-speed railway ballastless track
CN102141105A (en) * 2010-01-25 2011-08-03 康尼有限公司 Stiff damper
CN102182119A (en) * 2011-03-31 2011-09-14 中铁第四勘察设计院集团有限公司 Railway ballastless track spanning offline structural joint structure
CN202055116U (en) * 2011-03-31 2011-11-30 中铁第四勘察设计院集团有限公司 Prefabricated slab type ballastless track structure
CN202401347U (en) * 2011-12-10 2012-08-29 中铁第一勘察设计院集团有限公司 Girder-sew-striding sliding-damping-type ballastless track bed plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3984433B2 (en) * 2001-05-08 2007-10-03 財団法人鉄道総合技術研究所 Rail bearing support structure and vehicle track
EP1258563B1 (en) * 2001-05-15 2005-01-12 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Ballastless railway track with elastically supported sound absorber elements
CN1916288A (en) * 2006-09-05 2007-02-21 武汉理工大学 Hybrid system for controlling longitudinal vibration reaction of girder of cable stayed bridge in float type
CN101270568A (en) * 2007-11-06 2008-09-24 铁道第四勘察设计院 Rail plate technique for resolving rail bridge connection of crossbeam seam section
CN102141105A (en) * 2010-01-25 2011-08-03 康尼有限公司 Stiff damper
CN102121215A (en) * 2011-03-29 2011-07-13 中交第四公路工程局有限公司 Pre-tension paving method for slide layer of high-speed railway ballastless track
CN102182119A (en) * 2011-03-31 2011-09-14 中铁第四勘察设计院集团有限公司 Railway ballastless track spanning offline structural joint structure
CN202055116U (en) * 2011-03-31 2011-11-30 中铁第四勘察设计院集团有限公司 Prefabricated slab type ballastless track structure
CN202401347U (en) * 2011-12-10 2012-08-29 中铁第一勘察设计院集团有限公司 Girder-sew-striding sliding-damping-type ballastless track bed plate

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杨明辉，汪盈盈，熊维，徐振龙: "武广客运专线白家塱2号大桥桥上岔区无砟轨道结构设计及施工技术", 《高速铁路技术》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343065A (en) * 2013-07-23 2015-02-11 深圳市地铁集团有限公司 Bridge track and constructing method thereof
CN105155412A (en) * 2015-10-20 2015-12-16 成都市新筑路桥机械股份有限公司 Embedded rail structure suitable for bridges, and construction method of embedded rail structure
CN106012695A (en) * 2016-06-24 2016-10-12 北京交通大学 Prefabricated elastic track bed structure with capacity of energy absorption
CN109235151A (en) * 2018-09-13 2019-01-18 中铁二院工程集团有限责任公司 Elastic long sleeper buried-type ballastless track structure on a kind of Railway Steel Truss Girder Bridges

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SE01 Entry into force of request for substantive examination
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Wang Zhengming

Inventor after: Chang Deshi

Inventor after: Peng Wensheng

Inventor after: Shen Dongsheng

Inventor after: Wei Zhouchun

Inventor after: Xu Juanjuan

Inventor before: Chang Deshi

Inventor before: Shen Dongsheng

Inventor before: Wei Zhouchun

Inventor before: Xu Juanjuan

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: CHANG DESHI SHEN DONGSHENG WEI ZHOUCHUN XU JUANJUAN TO: WANG ZHENGMING CHANG DESHI PENG WENSHENG SHEN DONGSHENG WEI ZHOUCHUN XU JUANJUAN

C12 Rejection of a patent application after its publication
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Application publication date: 20120425