CN205295908U - Urban rail transit is with continuous U roof beam - Google Patents

Abstract

The utility model discloses an urban rail transit is with continuous U roof beam, this U roof beam are continuous structure, comprise the end bay and the middle one or more midspan at both ends, and end bay and midspan fuse, and the outer tip of two end bays is supported by side block, the junction of end bay and midspan, and the junction of two adjacent midspans is supported by well mound, the roof beam body of U roof beam comprises bottom plate, the web of bilateral symmetry setting and the upper limb listrium at web top, is connected with double -line or unilinear rail bearing platform on the bottom plate, is fixed with power supply unit, draws along the beam length orientation to become and power cable supporter, communication and pilot light cable supporter. The utility model discloses a U beam construction utilizes floor support track and train in succession, reduced the whole height of on bridge track elevation and circuit, and it is good to have the noise resistance ability, and is little to the influence in all ring edge borders, and the bridge security is good, advantages such as the attached structure of bridge floor can be done simultaneously to the structure to prevent falling the train, and the beam length can reach more than the 300m simultaneously, can satisfy the requirement that the expansion joint was not established to the switch area.

Description

Continuous U beam for urban track traffic

Technical field

The utility model relates to a kind of elevated bridge Oil pipeline for supporting track, is specifically related to a kind of city railContinuous U beam for traffic.

Background technology

Traditional city track traffic U type beam is freely supported structure, and its shortcoming is the circuit feelings that are not suitable for small curve radiusCondition, and length is shorter, is generally below 30m, cannot adapt to switch area and not establish the requirement at expansion joint. If adopt the case beam of deck typeCross section or T-shaped cross section, although go for switch area and small curve radius situation, its structure height is large, space utilizationRate is low, and view is poor, there is no noise reduction capability, needs to arrange higher sound barrier, and if derail, train is easily gone out bridgeBeam, forms security risk.

Utility model content

The utility model, for the particular limitations existing in prior art, provides a kind of urban track traffic two-wire to connectContinuous U beam.

The utility model for addressing this problem taked technical scheme is:

A kind of continuous U beam urban track traffic for, this U beam is continuous structure, by the end bay at two ends and centre one orIn multiple, across composition, end bay and middle bridging are integral, and the outer end of two end bays is supported by abutment pier; End bay and in across connectionPlace, and in adjacent two across junction supported by middle pier; Web and web that the beam body of U beam is arranged by base plate, bilateral symmetryThe top flange plate composition at top is connected with the track of single line or two-wire on base plate, along beam length direction be fixed with electric supply installation,Traction becomes and power cable supporter, communication and flashlight cable support body, and traction becomes and power cable supporter is placed in webInner side cable bearer on or be placed on base plate, communication and flashlight cable support body are placed on base plate or are placed in the inner side of webOn cable bearer; Top flange plate top is fixed with sound barrier or pedestrian guardrail.

Described end bay and in across span all between 15 ~ 40 meters.

Described power supply unit is the three rail power supply units that are fixed on base plate, or is arranged on the contact on top flange plateNet.

The width of described top flange plate is 0.5 ~ 1.5 meter.

Advantage and the good effect that the utlity model has are:

Continuous U beam for urban track traffic of the present utility model, adopts continuous U beam construction, utilize backplanes support track andTrain, reduced bridge get on the right track absolute altitude and circuit whole height, and it is good to have anti-acoustic capability, has reduced the shadow to surrounding enviromentRing, anti-train falls, and bridge security is good, structure can doublely be done the advantages such as the attached structure of bridge floor, more than beam length can reach 300m simultaneously, and canMeet switch area and do not establish the requirement at expansion joint, be applicable to the Continuous Bridge of 15 ~ 40 meters of left and right of urban track traffic, particularly circuitWhile being positioned at small curve radius or on bridge, have the situation of track switch, and comprehensive economy is good, practical, has before more wide applicationScape.

Brief description of the drawings

Fig. 1 is the cross-sectional configuration schematic diagram of the continuous U beam of urban track traffic of the present utility model single line;

Fig. 2 is the cross-sectional configuration schematic diagram of the continuous U beam of urban track traffic of the present utility model two-wire;

Fig. 3 is the vertical structure schematic diagram of urban track traffic of the present utility model single line or the continuous U beam of two-wire.

Critical piece symbol description in accompanying drawing:

1: electric supply installation 2: top flange plate

3: traction becomes and power cable supporter

4: optical cable supporter 5: base plate

6: track 7: train

8: web 9: pedestrian guardrail

10: end bay 11: in across

12: abutment pier 13: middle pier.

Detailed description of the invention

Referring to accompanying drawing, urban track traffic of the present utility model is described in detail with the continuous U beam of two-wire.

Fig. 1 is the cross-sectional configuration schematic diagram of the continuous U beam of urban track traffic of the present utility model single line; Fig. 2 is thisThe cross-sectional configuration schematic diagram of the continuous U beam of two-wire for the urban track traffic of utility model; As depicted in figs. 1 and 2, this practicality is newThe continuous U beam of two-wire for the urban track traffic of type, the web 8 that beam body is arranged by base plate 5, bilateral symmetry and web 8 tops upperFlange plate 2 forms. Base plate and two coxostermums are armored concrete or prestressed reinforced concrete construction. On base plate 5, be provided with support railPlatform 6, train 7 passes through on track 6. When two-wire, track 6 is right for uplink and downlink two, and two-wire track traffic shares a beamBody, when single line, track 6 is one group.

Beam body inside is fixed with electric supply installation 1, traction change and power cable supporter 3 and communicates by letter and signal along beam length directionOptical cable supporter 4. Power supply unit 1 is three rail power supply units fixing on base plate 5, also can adopt contact net power supply, contact netPillar stands on top flange plate 2. Traction becomes and power cable supporter 3 is placed on the inner side cable bearer of web 8 or is placed at the endOn plate 5, communication and flashlight cable support body 4 are placed on base plate 5 or are placed on the inner side cable bearer of web 8.

The top of top flange plate 2 and adjacent simply supported beam fire escape top are contour, can be used as fire escape and access path. ?Platform place, top and the platform floor of top flange plate 2 are contour, facilitate passenger getting on/off.

The width of top flange plate 2 is 0.5 ~ 1.5 meter, and top flange plate 2 tops are fixed with sound barrier or pedestrian guardrail 9.

Fig. 3 is the vertical structure schematic diagram of the continuous U beam of urban track traffic of the present utility model two-wire. As shown in Figure 3,The continuous U beam of two-wire for urban track traffic of the present utility model, longitudinally upper is continuous structure, by the end bay 10 at two ends and middleIn one or more across 11 compositions, end bay 10 and in be integrally formed across 11, end bay 10 and in all can be 15 ~ 40 across 11 spanRice, concrete ratio between side span and main span can be adjusted as the case may be. The outer end of two end bays 10 is supported by abutment pier 12. End bay 10 and in across11 junction, and in adjacent two, the junction across 11 is supported by middle pier 13. End bay 10 be generally 2 across, in across 11 can be 0 ~10 across, specifically can adjust as required, the number of middle pier 13 is corresponding adjustment also.

The continuous U beam of two-wire for urban track traffic of the present utility model, noise reduction is good, utilize backplanes support track and rowCar, has reduced bridge get on the right track absolute altitude and circuit whole height, has reduced the impact on surrounding enviroment, can prevent derail simultaneouslyAfter go out bridge, be applicable to the Continuous Bridge of 15 ~ 40 meters of left and right of urban track traffic, when particularly circuit is positioned at small curve radiusOr on bridge, there is a situation of track switch.

The utility model adopts continuous U beam construction, has that common freely-supported U beam building height is low, good, the anti-train of noise abatement performanceFalling, bridge security is good, structure can doublely be done the advantages such as the attached structure of bridge floor, more than beam length can reach 300m simultaneously, can meet switch areaDo not establish the requirement at expansion joint, be also applicable to the circuit situation of small curve radius, and comprehensive economy is good, practical, hasWide application prospect.

Claims (4)

1. a continuous U beam for urban track traffic, is characterized in that: this U beam is continuous structure, by the end bay (10) at two ends andMiddle one or more in across (11) composition, end bay (10) and in be connected across (11), the outer end of two end bays (10)Supported by abutment pier (12); End bay (10) and in across the junction of (11), and in adjacent two across the junction of (11) by middle pier(13) support; The web (8) that the beam body of U beam is arranged by base plate (5), bilateral symmetry and the top flange plate (2) at web top form,On base plate (5), be connected with the track (6) of two-wire or single line, be fixed with electric supply installation (1), traction change and electricity along beam length directionPower cable support body (3), communication and flashlight cable support body (4), traction becomes and power cable supporter (3) is placed in web(8) on inner side cable bearer or to be placed in base plate (5) upper, it is upper or put that communication and flashlight cable support body (4) are placed in base plate (5)On the inner side cable bearer of web (8); Top flange plate (2) top is fixed with sound barrier or pedestrian guardrail (9); Top flange plate(2) top and adjacent simply supported beam fire escape top are contour, can be used as fire escape and access path; In platform place, top flangeTop and the platform floor of plate (2) are contour, facilitate passenger getting on/off.

2. continuous U beam for urban track traffic according to claim 1, is characterized in that: end bay (10) and in across (11)Span all between 15 ~ 40 meters.

3. continuous U beam for urban track traffic according to claim 1, is characterized in that: electric supply installation (1) is to be fixed onThree rail power supply units on base plate, or be arranged on the contact net on top flange plate (2).

4. continuous U beam for urban track traffic according to claim 1, is characterized in that: the width of top flange plate (2) is0.5 ~ 1.5 meter.