CN209292796U - A kind of beam-rail integration medium-and low-speed maglev track girder - Google Patents

Abstract

The utility model discloses a kind of beam-rail integration medium-and low-speed maglev track girders, including the attachment device between beams of concrete (1), F rail (2) and the F rail (2) and beams of concrete (1), the attachment device includes bolt (3) and pre-buried rigid sleeve (4), is equipped with height adjusting cushion plate (5) between the F rail (2) and beams of concrete (1).The beam of the utility model-rail integration medium-and low-speed maglev track girder, eliminate the structures such as gooseneck, fastener, plummer and the support of existing medium-and low-speed maglev track girder, greatly reduce the height of entire track beam structure, the load such as the body movement that F rail bearing is received directly pass through beam-rail integral structure transmitting, furthermore, lateral shear active force caused by directly bearing to tilt as track in superrelation on curve Duan Liang-rail integral structure, the transmission efficiency of power between rail-beam is not only increased, and effectively prevent load effect to lead to structure failure between rail-beam.

Description

A kind of beam-rail integration medium-and low-speed maglev track girder

Technical field

The utility model belongs to magnetic levitation track technical field of transportation, more particularly, to low speed in a kind of beam-rail integration Magnetic levitation track girder.

Background technique

Medium-and low-speed maglev traffic is after traditional railway technology develops more than 100 years, and optimization creates on its basis Novel rail mode.Medium-and low-speed maglev traffic has that low noise, low vibration, Low emissivity, low cost, climbing capacity are strong, turn The advantages such as curved radius is small, have not only saved a large amount of land resource, but also provide securely and reliably for the development of urban transportation It is the new developing direction of field of urban traffic with energy-saving and environment-friendly new selection.In recent years, it is managed both at home and abroad in medium-and low-speed maglev traffic By huge achievement is achieved in research and engineer application, to push the application of medium-and low-speed maglev traffic to provide important technology branch Support.

Magnetic suspension traffic system is a kind of new terrestrial timetable planning, is with traditional wheel track traffic system significant difference It is suspended in car body above track by suspending power, running part is not contacted with track.It is pushed away by what line inductance electromotor generated It moves ahead in orbit into power.Medium-and low-speed maglev rail traffic uses the attractive suspension of normal conducting magnetic iron and guiding technique, passes through vehicle The electromagnetic attraction between U-shaped electromagnet and F shaped steel rail on suspension rack, realizes the suspension and guiding of vehicle.It is low at present Fast magnetic pontoon bridge girder construction and track structure are divided into two parts, and track structure is layed in the top of concrete-bridge, first construction bridges Structure, track structure of then constructing on bridge.

Medium-and low-speed maglev track girder includes bridge structure and track structure two parts, as depicted in figs. 1 and 2, F rail 2 at present Be mounted on gooseneck 10 by fastener, gooseneck 10 is connect by support with plummer 10, and plummer 10 again with concrete Beam 1 connects, to form magnetic levitation track girder construction.There are problems: (1) track structure for the low speed magnetic floating bridge of the prior art It is highly larger, increase structure height on bridge and roadbed, tunnel cross-section then increased in tunnel, increase track with Load operating distance between beam, especially in superrelation on curve as shown in Figure 2, seat structure in addition to transmitting by vehicle and Outside the gravitational load of track itself, also undertake lateral shearing force, be easy between gooseneck and plummer and F rail with Failure is generated between fastener, influences the safety and reliability of track beam structure；(2) track structure construction is complicated, contains F Rail, gooseneck, fastener, track and its mechanical connecting device, not only installation difficulty is big, and cost is high；(3) track structure two Phase load is larger, causes bridge structure project amount also larger；(4) when bridge structure design, typically no consideration track structure is mentioned The stiffness and strength of confession, waste material；(5) F rail, which is located at, is spaced in biggish gooseneck support, under Vehicle Load, F Continuously vertical bending deformation occurs for rail, causes the Short wave irregularity of rail level.

Utility model content

Aiming at the above defects or improvement requirements of the prior art, the utility model provides low speed in a kind of beam-rail integration Magnetic levitation track girder, it is intended that cancelling gooseneck, fastener, plummer and the support etc. of existing medium-and low-speed maglev track girder Structure, reduces the height of entire track beam structure, and the load such as body movement that F rail bearing is received directly pass through beam-rail integral structure Transmitting, in addition, lateral shear caused by directly bearing to be tilted as track in superrelation on curve Duan Liang-rail integral structure is acted on Power, not only increases the transmission efficiency of power between rail-beam, and effectively prevent load effect lead to structure failure between rail-beam.

To achieve the goals above, the utility model provides a kind of beam-rail integration medium-and low-speed maglev track girder, including mixed Attachment device between solidifying Tu Liang, F rail and the F rail and beams of concrete, the attachment device includes bolt and pre-buried rigid set Cylinder；Wherein,

The beams of concrete is the biggish flange structural of width, and top is equipped with the built-in steel sleeve, is exposed described mixed The top or concordant with the top of the beams of concrete of solidifying Tu Liang, and the length of the built-in steel sleeve and diameter and the spiral shell The length of bolt and diameter match and according to stress it needs to be determined that；

Height adjusting cushion plate is equipped between the F rail and beams of concrete, the height adjusting cushion plate is different-thickness to adapt to adjustment rail The needs of face elevation, the F rail and height adjusting cushion plate are equipped with bolt hole, the bolt hole and in the beams of concrete Built-in steel sleeve is corresponding, the F rail and height adjusting cushion plate by the bolt be screwed into the built-in steel sleeve make the F rail with it is described Built-in steel sleeve and built-in steel sleeve are fixedly connected with the beams of concrete to be linked together, and forms beam-rail integral structure.

Further, the top of the beams of concrete is straight line plane, and the built-in steel sleeve and bolt are according to stress need To be evenly arranged along the beams of concrete or at interval of certain distance centralized arrangement several.

Further, the top of the beams of concrete be inclined-plane, the F rail by the built-in steel sleeve always with coagulation Native beam chamfered surface fits closely, and forms beam-rail integral structure by the bolt and pre-buried rigid sleeve.

Further, " shoulder structure " is arranged in the inside top of the beams of concrete, to reduce the height of the inside F rail " bulge-structure " is arranged in degree, outside, and to raise the height of the outside F rail, and the inside " shoulder structure " and outside are " convex Play structure " match, to realize requirement of the curved section track girder for superelevation.

Further, steel bushing mounting plate is equipped between the height adjusting cushion plate and beams of concrete.

Further, the steel bushing mounting plate is rectangular parallelepiped structure, and width is according to the quantity of the built-in steel sleeve And arrangement is determined as~m, length is determined as~m according to construction length, and thickness is~mm according to stress condition.

Further, the position array that the built-in steel sleeve is corresponded on the steel bushing mounting plate is equipped with through-hole, described The shape of through-hole is round or kidney ellipsoid, has a diameter larger than the diameter of the built-in steel sleeve.

Further, the position that the steel bushing mounting plate corresponds to the bolt offers bolt hole.

Further, the bolt hole is round or oblong, and the diameter of bolt described in aperture ratio is big, to adjust State the gauge of F rail.

Further, the section of the beams of concrete is Back Word type, I-shaped, T shape or trapezoidal.

In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art, Column the utility model has the advantages that

(1) beam of the utility model-rail integration medium-and low-speed maglev track girder, eliminates existing medium-and low-speed maglev track girder The structures such as gooseneck, fastener, plummer and support, greatly reduce the height of entire track beam structure, the vehicle that F rail bearing is received The load such as body movement directly pass through beam-rail integral structure transmitting, in addition, direct in superrelation on curve Duan Liang-rail integral structure The lateral shear active force as caused by track inclination is born, not only increases the transmission efficiency of power between rail-beam, and effectively keep away Having exempted from load effect leads to structure failure between rail-beam.

(2) beam of the utility model-rail integration medium-and low-speed maglev track girder, F rail pass through the steel knot that is embedded in bridge Structure semi-girder is directly linked together with bridge structure, forms steel-concrete combined structure, and bridge is linked together with track, combine by Power, structure tension performance are more preferable；, while F rail anchor bolt can also undertake bigger horizontal shear, orbital forcing is more preferable.

(3) beam of the utility model-rail integration medium-and low-speed maglev track girder, is equipped between height adjusting cushion plate and beams of concrete Steel bushing mounting plate can disposably realize positioning and Embedment Construction to multiple pre-buried rigid sleeves, not only positioning and pre- buried depth Degree is accurate, and construction efficiency is high, good with the amalgamation of concrete, and the positioning and supporting role to corresponding steel plate are more preferable, more steady It is fixed.

(4) beam of the utility model-rail integration medium-and low-speed maglev track girder designs on steel bushing mounting plate corresponding pre- It buries the location information of rigid sleeve and processes the through-hole for obtaining and being used for pre-buried WELDING STUDS, the shape of the through-hole can be round, oval Shape or other structures form have a diameter larger than the diameter of pre-buried rigid sleeve, in order to determine in work progress pre-buried rigid sleeve Position is finely adjusted, to adapt to rush requirement of the low speed magnetic floating track girder to ride comfort.

(5) beam of the utility model-rail integration medium-and low-speed maglev track girder, the back of beams of concrete are inclined-plane, inclined-plane Can be arranged to the left to be arranged to the right, and F rail is fitted closely with beams of concrete chamfered surface always by built-in steel sleeve, And beam-rail integration track beam structure is formed by bolt and pre-buried rigid sleeve.

(6) beam of the utility model-rail integration medium-and low-speed maglev track girder, the back of beams of concrete are not designed to tilt Inclined-plane, and different composite structures is designed in two sides at the top of it, and " shoulder structure " is arranged on one side on the inside of middle orbit, in reducing The height of side F rail, and on the outside of track on one side, it is arranged " bulge-structure ", to raise the height of outside F rail, passes through inside " shoulder Requirement of the curved section track girder for superelevation is realized in the matching of structure " and outside " bulge-structure ".

(7) beam of the utility model-rail integration medium-and low-speed maglev track girder, it is only necessary to beams of concrete is laid out and changed Into saving material utilization amount, easy construction reduces construction investment, specific biggish engineering application value.

Detailed description of the invention

Fig. 1 is that medium-and low-speed maglev plane and straight line section bridge in the prior art and track arrange cross-sectional view；

Fig. 2 is that medium-and low-speed maglev superrelation on curve section bridge in the prior art and track arrange cross-sectional view；

Fig. 3 is 1 plane and straight line Duan Liang of the utility model embodiment-rail integration medium-and low-speed maglev track girder cross-sectional view；

Fig. 4 is 2 superrelation on curve Duan Liang of the utility model embodiment-rail integration medium-and low-speed maglev track girder cross-sectional view；

Fig. 5 is 2 superrelation on curve Duan Liang of the utility model embodiment-rail integration medium-and low-speed maglev track girder cross-sectional view；

Fig. 6 is the a-quadrant part drawing in Fig. 3；

Fig. 7 is the diagrammatic cross-section in Fig. 6 along 2-2 section part.

In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1- beams of concrete, 2-F Rail, 3- bolt, 4- built-in steel sleeve, 5- height adjusting cushion plate, 10- plummer, 11- gooseneck, 12- steel bushing mounting plate.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.In addition, involved in the various embodiments of the present invention described below And to technical characteristic can be combined with each other as long as they do not conflict with each other.

For a series of problems existing for prior art medium-and low-speed maglev track beam structure, the utility model provides a kind of tool There is beam-rail integration medium-and low-speed maglev track girder, is symmetrical arranged beam-rail integral structure at the top of beams of concrete.The beam- Rail integral structure includes beams of concrete, F rail and attachment device, wherein attachment device can be varied, for example passes through setting It is parallel at the top of beams of concrete and perpendicular to the bi-directional member at the top of beams of concrete or the pre-buried structure at the top of beams of concrete Part, the component or other class connection structures that setting matches in F rail side.F rail is realized by attachment device and beams of concrete Connection, to form the integrated medium-and low-speed maglev track girder of beam-.By this beam-rail integral structure, eliminate in existing The structures such as gooseneck, fastener, plummer and the support of low speed magnetic floating track girder greatly reduce the height of entire track beam structure Degree, the load such as body movement that F rail bearing is received directly pass through beam-rail integral structure transmitting, in addition, in superrelation on curve Duan Liang-rail Integral structure directly bears lateral shear active force caused by tilting as track, not only increases the transmitting of power between rail-beam Efficiency, and effectively prevent load effect lead to structure failure between rail-beam.In addition, compared with prior art, eliminating steel cross The components such as beam, fastener, plummer and support keep structure construction simpler, effectively reduce the structure from rail level to bridge floor Highly, working procedure is less, and without reserving track reinforcing bar in bridge top plate, construction technology is simpler, while but also engineering Cost is lower.

Specifically, the utility model provides two kinds of Common examples to illustrate the technical solution of the utility model.Fig. 3 is The beam of the utility model embodiment 1-rail one bridge structure cross-sectional view；Fig. 6 is the a-quadrant part drawing in Fig. 3.In conjunction with Fig. 3 and Fig. 6 is it is found that beam-rail integration medium-and low-speed maglev track girder includes beams of concrete 1, F rail 2 and attachment device, wherein even Connection device includes bolt 3 and built-in steel sleeve 4.1 upper beam of beams of concrete is designed as the biggish flange structural of width, it is contemplated that coagulation The native flange structural of beam 1 itself provides support, therefore does not need setting support construction.It is arranged between 1 upper beam of F rail 2 and beams of concrete Height adjusting cushion plate 5, beams of concrete 1 is interior to be arranged built-in steel sleeve 4, i.e. pre-buried during 1 casting and constructing of beams of concrete, built-in steel sleeve 4 expose the top or concordant with the top of beams of concrete 1 of beams of concrete 1.In addition, in order to guarantee F rail 2 and beams of concrete 1 it Between active force effective transmitting, F rail 2 uses special designing, as shown in fig. 6, the side that F rail 2 is connect with beams of concrete 1 is according to load Lotus Demand Design is larger size structure, and width and thickness increased compared with the side of conventional F rail, to guarantee structure Safety and validity.Bolt hole is set on F rail 2 and height adjusting cushion plate 5, with the pre-embedded steel sleeve being set in beams of concrete 1 Cylinder 4 is corresponding, and F rail 2 and height adjusting cushion plate 5 are screwed into built-in steel sleeve 4 by bolt 3 and make F rail 2 and beams of concrete 1 and pre-embedded steel sleeve Cylinder 4 is fixedly connected with beams of concrete 1, is linked together, and beam-rail integral structure bridge structure is formed.It is existing skill compared to Fig. 2 Medium-and low-speed maglev bridge and track in art are arranged, track 10, gooseneck 11 and other section of track fasteners are equally eliminated And support, keep structure construction simpler, reduces the project amount of installation difficulty and structure.F rail 2 is by being embedded in bridge Steel construction semi-girder is directly linked together with bridge structure, forms steel-concrete combined structure, and bridge is linked together with track, group Stress is closed, structure tension performance is more preferable；

Further, Fig. 7 is the diagrammatic cross-section in Fig. 6 along 2-2 section part, in conjunction with Fig. 7, bolt 3 and pre-embedded steel sleeve Cylinder 4 according to stress needs be evenly arranged along 1 upper beam of beams of concrete or at interval of certain distance centralized arrangement several.In addition, Fig. 1 The rail of F in the prior art 2 be located at and be spaced on biggish gooseneck 11, under Vehicle Load, F rail 2 occurs continuously Vertical bending deformation be easy to cause the Short wave irregularity of rail level, and the F rail 2 of the utility model is continuously supported in beams of concrete 1 On, the vertical deformation that F rail 2 generates under Vehicle Load is smaller, while 2 anchor bolt of F rail can also undertake bigger water Straight snips power, orbital forcing are more preferable.

In addition, primary length of constructing is therefore, pre-buried up to 50~100 meters in magnetic levitation track traffic track beam work progress The quantity of steel bushing 4 is more, needs to be embedded into concrete after the completion of beams of concrete 1 pours simultaneously, due to the solidification of concrete Time is short, and the positioning of built-in steel sleeve 4, pre-buried time are very short, therefore, during practice of construction be easy to appear positioning it is inaccurate or The problems such as the pre-buried depth of person is inadequate or too deep, causing subsequent bolt 3 to occur with pre-buried rigid sleeve 4, positioning is inaccurate to be pacified Dress, built-in steel sleeve 4 be pre-buried shallowly need excessively secondary cut process and built-in steel sleeve 4 it is pre-buried it is too deep be difficult to form F rail 2 it is solid Surely a series of problems, such as connecting.For this purpose, the another aspect as the utility model is improved, as shown in Fig. 3~Fig. 6, padded being turned up Steel bushing mounting plate 12 is equipped between plate 5 and beams of concrete 1.Wherein, steel bushing mounting plate 12 is preferably rectangular parallelepiped structure, wide Degree determines that for example 3~8m, length is determined according to construction length according to the quantity and arrangement of corresponding built-in steel sleeve 4, for example 50 ~100m, thickness is determined according to stress condition, can be made of 4~8mm steel material.It is designed on steel bushing mounting plate 12 in advance The location information of built-in steel sleeve 4 is corresponded to well and processes the through-hole for obtaining and being used for built-in steel sleeve 4.It, can be with by above structure The disposable positioning and Embedment Construction realized to multiple built-in steel sleeves 4, not only positioning and pre-buried depth are accurate, but also effect of constructing Rate is high, and good with the amalgamation of concrete, the positioning and supporting role to corresponding steel plate are more preferable, more stable.Preferably, the through-hole Shape can be round, kidney ellipsoid or other structures form, the diameter of built-in steel sleeve 4 be had a diameter larger than, in order to construct The positioning of built-in steel sleeve 4 is finely adjusted in journey, to adapt to rush requirement of the low speed magnetic floating track girder to ride comfort.Preferably, Built-in steel sleeve 4 can be processed as in advance overall structure with steel bushing mounting plate 12, then carry out Embedment Construction again, further mention High construction efficiency and quality.

Preferably, bolt hole is offered on F rail 2, height adjusting cushion plate 5 and steel bushing mounting plate 12, bolt hole can be circle Shape is also possible to oblong, and the diameter of bolt hole aperture ratio bolt 3 is slightly larger, can carry out the adjustment of F gauge.

Preferably, the section of beams of concrete 1 is not limited to the section form in attached drawing, is also possible to i shaped cross section, T shape Other sections such as section, trapezoid cross section.

In order to adapt to the variation of medium-and low-speed maglev track girder bend, track girder needs design curve superelevation, at superrelation on curve end, Track is typically designed as high outside and low outside structure type, floating to the component of curve inner side as magnetic using the self weight by magnetic-levitation train Train passes through centripetal force when bend, guarantees train safety turning.Preferably, implement as shown in Figure 4 and Figure 5 for the utility model The superrelation on curve Duan Liang of example 2-rail integration medium-and low-speed maglev track girder cross-sectional view, as shown in figure 4, the beam of beams of concrete 1 Top is inclined-plane, and inclined-plane can be arranged to the left and can also be arranged to the right, F rail 2 by built-in steel sleeve 4 always with beams of concrete 1 Chamfered surface fits closely, and forms beam-rail integration track beam structure by bolt 3 and pre-buried rigid sleeve 4.

As shown in figure 5, the superrelation on curve design in order to realize track girder, can also use Curve guide impeller as shown in Figure 5 The back of scheme, i.e. beams of concrete 1 is not designed to inclined ramp, and different composite structures is designed in two sides at the top of it, wherein " shoulder structure " is set on one side on the inside of track, to reduce the height of inside F rail, is then realized by pre-buried rigid sleeve 4 and bolt 3 Being fixedly connected between F rail 2 and beams of concrete 1；And on the outside of track on one side, it is arranged " bulge-structure ", to raise outside F rail Highly, by the matching of inside " shoulder structure " and outside " bulge-structure ", requirement of the curved section track girder for superelevation is realized. This structure type, it is only necessary to improvement is laid out to beams of concrete 1, save material utilization amount, easy construction reduces engineering throwing Money, specific biggish engineering application value.

As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not For limiting the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change Into etc., it should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of beam-rail integration medium-and low-speed maglev track girder, which is characterized in that including beams of concrete (1), F rail (2) and institute The attachment device between F rail (2) and beams of concrete (1) is stated, the attachment device includes bolt (3) and built-in steel sleeve (4)；Its In,

The beams of concrete (1) is flange structural, and top is equipped with the built-in steel sleeve (4), exposes the beams of concrete (1) Top or concordant with the top of the beams of concrete (1), and the length of the built-in steel sleeve (4) and diameter and the spiral shell The length of bolt (3) and diameter match and according to stress it needs to be determined that；

Height adjusting cushion plate (5) are equipped between the F rail (2) and beams of concrete (1), the height adjusting cushion plate (5) is different-thickness with suitable The needs of height above rail surface, the F rail (2) and height adjusting cushion plate (5) should be adjusted equipped with bolt hole, the bolt hole and set on institute The built-in steel sleeve (4) stated in beams of concrete (1) is corresponding, and the F rail (2) and height adjusting cushion plate (5) are screwed by the bolt (3) The built-in steel sleeve (4) makes the F rail (2) and the built-in steel sleeve (4) and built-in steel sleeve (4) and the concrete Beam (1), which is fixedly connected, to be linked together, and forms beam-rail integral structure.

2. a kind of beam according to claim 1-rail integration medium-and low-speed maglev track girder, which is characterized in that the coagulation The top of Tu Liang (1) is that straight line plane, the built-in steel sleeve (4) and bolt (3) are needed according to stress along the beams of concrete (1) be evenly arranged or at interval of certain distance centralized arrangement several.

3. a kind of beam according to claim 1-rail integration medium-and low-speed maglev track girder, which is characterized in that the coagulation The top of Tu Liang (1) be inclined-plane, the F rail (2) by the built-in steel sleeve (4) always with beams of concrete (1) chamfered surface It fits closely, and forms beam-rail integral structure by the bolt (3) and built-in steel sleeve (4).

4. a kind of beam according to claim 1-rail integration medium-and low-speed maglev track girder, which is characterized in that the coagulation " shoulder structure " is arranged in the inside top of Tu Liang (1), to reduce the height of the inside F rail (2), outside setting " protrusion knot Structure ", to raise the height of the outside F rail (2), and the inside " shoulder structure " matches with outside " bulge-structure ", with Realize requirement of the curved section track girder for superelevation.

5. a kind of beam-rail integration medium-and low-speed maglev track girder, feature described in any one of -4 exist according to claim 1 In equipped with steel bushing mounting plate (12) between the height adjusting cushion plate (5) and beams of concrete (1).

6. a kind of beam according to claim 5-rail integration medium-and low-speed maglev track girder, which is characterized in that the steel bushing Cylinder mounting plate (12) is rectangular parallelepiped structure, and width is determined as 3~8m according to the quantity and arrangement of the built-in steel sleeve (4), Its length is determined as 50~100m according to construction length, and thickness is 4~8mm according to stress condition.

7. a kind of beam according to claim 5-rail integration medium-and low-speed maglev track girder, which is characterized in that the steel bushing The position array for correspond to built-in steel sleeve (4) on cylinder mounting plate (12) is equipped with through-hole, the shape of the through-hole be circle or Kidney ellipsoid has a diameter larger than the diameter of the built-in steel sleeve (4).

8. a kind of beam according to claim 6 or 7-rail integration medium-and low-speed maglev track girder, which is characterized in that the steel The position of the corresponding bolt (3) of sleeve mounting plate (12) offers bolt hole.

9. a kind of beam-rail integration medium-and low-speed maglev track girder, feature described in any one of -4 exist according to claim 1 In the bolt hole is round or oblong, and the diameter of bolt (3) described in aperture ratio is big, to adjust the F rail (2) Gauge.

10. a kind of beam-rail integration medium-and low-speed maglev track girder, feature described in any one of -4 exist according to claim 1 In the section of the beams of concrete (1) is Back Word type, I-shaped, T shape or trapezoidal.