CN210826953U - Superposed track beam for magnetic suspension line - Google Patents
Superposed track beam for magnetic suspension line Download PDFInfo
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- CN210826953U CN210826953U CN201920996663.1U CN201920996663U CN210826953U CN 210826953 U CN210826953 U CN 210826953U CN 201920996663 U CN201920996663 U CN 201920996663U CN 210826953 U CN210826953 U CN 210826953U
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Abstract
The utility model provides a superimposed track roof beam for magnetic suspension circuit, belongs to magnetic suspension traffic technical field, the track roof beam includes upper steel structure track board, lower floor's spandrel girder and coupling mechanism between the two, upper steel structure track board cross-section is type T type structure, and upper portion covers there is steel structure track board top sliding plate, and inside is hollow structure, and below both sides portion is inside sunken arc, and the inside functional area that is equipped with in both sides is equipped with in the width direction, and it is inside to be equipped with horizontal, vertical stiffening rib, be equipped with the coupling mechanism of adjustable two relative displacement between upper steel structure track board and the lower floor's spandrel girder. This track roof beam includes that upper steel structure track board links to each other through adjustable coupling mechanism between upper strata spandrel girder, and upper steel structure track board is inside to be equipped with horizontal, vertical stiffening rib, realizes that the construction position is adjustable between upper steel structure track board and the lower floor spandrel girder, guarantees under the prerequisite of requirement, reduces the purpose of cross-sectional area and dead weight.
Description
Technical Field
The utility model belongs to the technical field of the magnetic suspension traffic, especially, relate to a superimposed track roof beam for magnetic suspension circuit.
Background
Magnetic suspension traffic is the fastest rail traffic mode in the world at present, and has the advantages of high speed, energy conservation, low vibration noise and the like. On the basis of introducing the absorption Germany technology, China establishes a plurality of magnetic suspension test lines through independent innovation. At present, no high-speed magnetic suspension traffic engineering exists in the world, a track technology matched with a high-speed system is also lacked, and in order to further explore the speed advantages and develop a high-speed magnetic suspension traffic mode, China is exploring high-speed magnetic suspension traffic. Compared with the prior art, the speed of the railway vehicle is greatly improved, and brand new requirements with higher difficulty are provided for the vehicle and the railway. The track structure is one of the most important subsystems of the whole magnetic suspension traffic system, and the development of the track structure matched with the speed is particularly necessary.
Through researching the dynamic interaction of the rail under the high-speed condition, relevant necessary research and reasonable analysis of structure model selection, rail deformation, dynamic characteristics and the like are carried out, the technical scheme of the rail suitable for high-speed magnetic levitation is provided, and the key technical problems of construction, large transportation, on-site fine adjustment and positioning and the like of the rail beam in application are solved conveniently. The biggest problem of the existing composite beam is that the weight is too large, long-distance transportation cannot be realized, and a beam yard needs to be built along the line.
Disclosure of Invention
The utility model provides a superimposed track roof beam for magnetic suspension circuit, this track roof beam include upper steel construction track board and lower floor spandrel girder, link to each other through adjustable coupling mechanism between the two. The upper steel structure track plate is internally provided with transverse and longitudinal stiffening ribs, so that the construction position between the upper steel structure track plate and the lower bearing beam can be adjusted, and the purposes of reducing the cross section area and the dead weight are achieved on the premise of ensuring the precision requirement.
The utility model provides a pair of be applied to high-speed magnetic levitation line's superimposed track roof beam mainly comprises the triplex: the upper layer steel structure track slab with the functional area, the lower layer bearing beam and a connecting mechanism between the upper layer steel structure track slab and the lower layer bearing beam. The upper layer steel structure track slab takes a certain modulus as a system unit, and the steel is manufactured in a factory and machined; the lower bearing beam adopts a prestressed concrete box girder which can adopt a simple support structure or a continuous structure; the connecting mechanism is used for connecting the upper steel structure track plate and the lower bearing beam.
The upper steel structure track slab directly bears train load, adopts an integral all-steel structure and mainly comprises a steel structure slab surface, stiffening ribs and function keys. The sliding plate at the top of the steel structure track plate, the lateral guide plates of the steel structure track plates at two side edges, the dovetail grooves at two lower edges, the functional area bottom plate, the arc-shaped bottom plate and the bottom steel structure track plate jointly enclose the outer contour of the steel structure track plate. The lower end of the lateral guide plate of the steel structure track plate is sequentially and symmetrically connected with the functional area bottom plate, the dovetail groove and the arc bottom plate from outside to inside, and the lower part of the arc bottom plate is connected with the steel structure track plate bottom plate. And a middle longitudinal stiffening rib is arranged in the middle of the steel structure track slab along the whole length of the track slab, two side longitudinal stiffening ribs are respectively arranged at the functional areas at two sides along the whole length of the track slab, and the whole length of each longitudinal stiffening rib is parallel to the lateral guide plate of the steel structure track slab. Multiple rows of transverse stiffening ribs are uniformly distributed in the direction perpendicular to the longitudinal stiffening ribs. Two middle transverse stiffening ribs are arranged in the middle track slab main body; the functional areas on two sides are respectively provided with a functional area transverse stiffening rib, and the four stiffening ribs are distributed on the same straight line.
The sliding plate at the top of the steel structure track plate covers the whole track plate at the topmost end of the track plate, two sides of the sliding plate are connected with the plate-side guide plate in a welding mode, and the bottom face of the sliding plate is connected with the stiffening rib inside the track plate in a welding mode.
The upper, middle and lower parts of the lateral guide plates of the steel structure track plates on the two sides are respectively connected with the sliding plate at the top of the steel structure track plate, the transverse stiffening rib of the functional area and the bottom plate of the functional area in a welding mode.
The bottom plate of the steel structure track plate is at the lowest part of the track plate, has the same length and a little narrower than the sliding plate at the top of the steel structure track plate, and is parallel to the sliding plate. A square shear key reserved hole is formed in each transverse stiffening rib in the middle of the upper edge of the lower edge.
The middle transverse stiffening rib is closely welded with the peripheral middle longitudinal stiffening rib, the edge longitudinal stiffening rib, the steel structure track plate bottom plate, the sliding plate at the top of the steel structure track plate, the arc-shaped bottom plate and the dovetail groove.
The lower bearing beam can adopt a simply supported or continuous beam structure, adopts a prestressed concrete box beam and consists of a bearing beam main body with a square upper part and a bearing beam bottom plate with a wider lower part. The middle part of the main body of the bearing beam is hollowed. The upper surface of the flange of the bearing beam bottom plate is provided with a certain gradient.
The connecting mechanism adopts an anti-pulling bolt and a shear key. The anti-pulling bolts are arranged at two ends of the steel structure track slab and arranged outside the middle transverse stiffening rib at the outermost sides of the two sides. The shear key is arranged at the bottom of the middle transverse stiffening rib at the middle part of the steel structure track slab. The front and rear ends of the steel structure track plate and the lower bearing beam are fixedly connected through anti-pulling bolts, and the lower part of the middle transverse stiffening rib at the bottom of the steel structure track plate is connected with the lower bearing beam (2) through shear keys
The shear key of the square steel pipe consists of a shear pin of the square steel pipe and a cubic base. The steel pipe shear pin consists of a shear pin bottom plate and a square cylinder, the cubic base is a square uncovered cubic rigid box, and the lower part of the cubic rigid box is provided with a concrete grouting pipe. The size of the shear pin bottom plate is slightly smaller than the inner diameter of the cubic base, the shear pin bottom plate can move left and right in the cubic base for precision adjustment, and the shear pin bottom plate is reserved at the upper end of the square cylinder and used for placing a rib plate groove hole at the lower end of the middle transverse stiffening rib.
The cross-shaped steel shear key consists of a cross-shaped shear pin and a cubic base. The cross shear pin consists of a shear pin bottom plate, a shear pin main plate and two shear pin side plates, wherein the shear pin main plate is vertically welded with the two shear pin side plates and is jointly welded and connected with the shear pin bottom plate. Concave holes are reserved at the upper part and the lower part of the joint of the shear pin side plate and the shear pin main plate to form welding processing holes. The cubic base is a square uncovered cubic rigid box, and the lower part of the cubic base is provided with a concrete grouting pipe. The size of the shear pin bottom plate is slightly smaller than the inner diameter of the cubic base.
The utility model has the advantages and the effect:
the utility model discloses the superimposed beam detachable is prefabricated, and the field assembly makes things convenient for the transportation, greatly reduces the cost of transportation, has reduced single assembly unit dead weight, and convenient assembly has greatly improved the practicality. The utility model discloses adopt adjustable connecting piece between upper steel construction track board and the spandrel girder of lower floor, it is adjustable to guarantee the hookup location between upper steel construction track board and the spandrel girder of lower floor. The utility model discloses all satisfy under the requirement prerequisite at intensity, rigidity, deformation etc. and verify through the experiment that dynamic performance is superior, the sectional area is little, practices thrift the cost.
The utility model discloses the track can provide sufficient rigidity, and the effective control vibrations reduce the bridge deformation that the maglev vehicle of high-speed operation brought. The technical scheme of the high-speed magnetic levitation track has the advantages of reasonable structure, clear force transmission, novel design, material saving, high installation precision, small vibration deformation, light dead weight, convenience in processing, transportation and hoisting, good rigidity and ductility and the like. The track technology absorbs practical engineering experience, reasonably selects types, analyzes at multiple angles, can provide enough rigidity, effectively controls vibration, and reduces bridge deformation caused by the magnetic suspension vehicle running at high speed. The technical scheme of the high-speed magnetic levitation track has the advantages of reasonable structure, clear force transmission, novel design, material saving, high installation precision, small vibration deformation, light dead weight, convenience in processing, transportation and hoisting, good rigidity and ductility and the like.
Drawings
FIG. 1 is a schematic view of a superposed track beam of the present invention;
fig. 2 is a front view of the folding track beam of the present invention;
FIG. 3 is an internal structural view of the steel structure track slab of the present invention;
FIG. 4 is a partial drawing of the steel structure track slab of the present invention;
FIG. 5 is a schematic view of the load beam of the present invention;
FIG. 6 is a schematic view of shear keys of square steel pipes according to the present invention;
fig. 7 is a schematic view of a cross-shaped shear key according to the present invention.
The components in the figure: 1-upper steel structure track plate, 2-lower bearing beam, 3-connecting mechanism, 4-steel structure track plate top sliding plate, 5-steel structure track plate lateral guide plate, 6-steel structure track plate bottom plate, 7-dovetail groove, 8-middle transverse stiffening rib, 9-functional area transverse stiffening rib, 10-middle longitudinal stiffening rib, 11-edge longitudinal stiffening rib, 12-arc bottom plate, 13-functional area bottom plate, 14-shear key reserved hole, 15-anti-pulling key reserved hole, 16-rib plate processing hole, 17-bearing beam main body, 18-bearing beam bottom plate, 19-cubic base, 20-square steel pipe shear pin, 21-cross shear pin, 22-shear pin bottom plate, 23-square cylinder, 24-rib plate slotted hole, 25-shear pin main plate, 26-shear pin side plate, 27-concrete grouting pipe, and 28-welding processing hole.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
The superposed track beam mainly comprises three parts: the track slab comprises an upper-layer steel structure track slab 1 with a functional area, a lower-layer bearing beam 2 and a connecting mechanism 3 between the upper-layer steel structure track slab and the lower-layer bearing beam. The upper layer steel structure track slab 1 takes 3.096 meters or other moduli as a system unit, and is manufactured in a factory by steel and machined; the prestressed concrete box girder 2 adopted by the lower bearing beam can adopt a simple support structure or a continuous structure. And (3) transporting the steel structure track slab prefabricated in a factory to the site, and connecting the steel structure track slab with the constructed lower bearing beam together through a connecting mechanism 3 to form a superposed track beam structure.
The upper steel structure track slab provides three functional surfaces and a functional area of the functional area, directly bears train load, and transmits the train load to the bearing beam through the connecting mechanism. The steel structure track slab adopts an integral all-steel structure, is divided into a middle track slab main body and two functional area beam parts, and mainly comprises a steel structure slab surface, stiffening ribs and functional keys. Wherein the function key can be installed in later stage and also can be integrally machined with the steel structure plate surface, the precision is high, and the later stage installation procedure is saved. The top sliding plate 4 of the top steel structure track plate, the lateral guide plates 5 of the two side steel structure track plates, the dovetail grooves 7 at the two lower edges, the functional area bottom plate 13, the arc-shaped bottom plate 12 and the bottom steel structure track plate bottom plate 6 jointly enclose the outer contour of the steel structure track plate 1. Inside the steel structure track plate 1, a middle longitudinal stiffening rib 10 is arranged in the middle along the whole length of the track plate, two side longitudinal stiffening ribs 11 are respectively arranged at the functional areas at two sides along the whole length of the track plate, and the middle longitudinal stiffening rib 10 and the side longitudinal stiffening ribs 11 are arranged in parallel with the lateral guide plate 5 of the steel structure track plate. In the direction perpendicular to the longitudinal stiffening ribs, a plurality of rows of transverse stiffening ribs, namely a middle transverse stiffening rib 8 and a functional area transverse stiffening rib 9, are uniformly distributed. Two middle transverse stiffening ribs 8 are arranged on the same horizontal line in the middle track slab main body; the functional areas on two sides are respectively provided with a functional area transverse stiffening rib 9, and the four stiffening ribs are on the same straight line.
The top sliding plate 4 of the steel structure track plate covers the whole track plate at the topmost end of the track plate, two sides of the sliding plate are connected with the plate side guide plate 5 in a welding mode, and the bottom surface of the sliding plate is connected with a stiffening rib inside the track plate in a welding mode.
The upper, middle and lower parts of the lateral guide plates 5 of the steel structure track plate at the two sides are respectively welded with the sliding plate 4 at the top of the steel structure track plate, the transverse stiffening rib 9 of the functional area and the bottom plate 13 of the functional area, thereby playing a role in guiding the magnetic suspension vehicle.
The steel structure track plate bottom plate 6 is arranged at the lowest part of the track plate. Is longer and slightly narrower than the sliding plate 4 on the top of the steel structure track plate and is parallel to the sliding plate. And a square shear key reserved hole 14 is formed in each transverse stiffening rib 8 in the middle of the upper edge, and anti-pulling key reserved holes are formed outside the transverse stiffening ribs 8 at the outermost sides of the two ends.
The middle transverse stiffening rib 8 is tightly welded with the peripheral middle longitudinal stiffening rib 10, the edge longitudinal stiffening rib 11, the steel structure track plate bottom plate 6, the steel structure track plate top sliding plate 4, the arc-shaped bottom plate 12 and the dovetail groove 7.
The lower edge part of the transverse stiffening rib 9 of the functional area is contacted with the bottom plate 13 of the functional area to form a rib plate processing hole 16, which is convenient for the construction operations such as welding and the like. The other edges are respectively welded with the track slab lateral guide plate 5, the steel structure track slab top sliding plate 4 and the longitudinal stiffening rib 11.
The bearing beam 2 can adopt a simple or continuous beam structure, can be prefabricated in a factory or on site, and can also be cast in situ on site. The prestressed concrete box girder is composed of a bearing girder main body 17 with a square upper part and a bearing girder bottom plate 18 with a wider lower part. The bearing beam main body 17 is hollow in the middle, so that the self weight of the structure can be reduced. The upper surface of the flange of the bearing beam bottom plate 18 is provided with a certain gradient, so that drainage and garbage cleaning are facilitated.
The connecting mechanism 3 of the superposed track beam is used for connecting the bearing beam 2 and the steel structure track slab 1, so that the bearing beam and the steel structure track slab are tightly connected and integrally stressed. The connecting mechanisms 3 are divided into two types, one type is an anti-pulling key arranged at two ends of the steel structure track plate 1, and anti-pulling bolts can be adopted to prevent the bearing beam 2 and the steel structure track plate 1 from generating relative displacement in the vertical direction. The other type is a shear key arranged at the bottom of a transverse stiffening rib 8 in the middle of the middle part of the steel structure track plate 1, and the shear key prevents the bearing beam 2 and the steel structure track plate 1 from generating relative displacement in the horizontal direction.
To the superimposed track roof beam the utility model provides a shear key with adjustable two kinds of high accuracy is square steel pipe shear key and cross shaped steel shear key respectively. Not only can meet the requirement of fine adjustment during installation, but also can be locked and fixedly connected with the supporting beam after the adjustment is finished.
The shear key is arranged on the part of the concrete bearing beam and is pre-embedded after being machined, and the caliber of the sealing part of the pre-embedded part is slightly smaller than that of the inner wall, so that the grouting is facilitated. The bottom shape of the shear key of the square steel pipe or the cross-shaped steel is smaller than the caliber of the embedded part, so that the horizontal displacement and the vertical height can be conveniently adjusted. And grouting from a grouting pipe reserved in the embedded part after the adjustment is finished. The shear key can be positioned when being embedded, namely primary precision adjustment is carried out; meanwhile, during construction, the upper connection part and the lower connection part can be adjusted to adapt to uncontrollable errors of concrete pouring and realize high precision, and the requirement that the two-stage adjustment of the line is realized due to sedimentation and deformation accumulation in the use and operation stage is met.
The shear key of the square steel pipe consists of a steel pipe shear pin 20 and a cubic base 19. The steel pipe shear pin 20 consists of a shear pin bottom plate 22 and a square cylinder 23, the cubic base 19 is a square uncovered cubic rigid box, and a concrete grouting pipe 27 is vertically arranged at the lower part of the cubic rigid box. The size of the shear pin bottom plate 22 is slightly smaller than the inner diameter of the cubic base 19, the shear pin bottom plate can move left and right in the cubic base to adjust the precision, and a ribbed plate groove hole 24 is reserved at the upper end of the square barrel 23 and used for placing the lower end of the middle transverse stiffening rib 8. The lower end of the cubic base 19 is embedded and poured on the top surface of the bearing beam 2 according to the corresponding position. The lower part of which is provided with a concrete grouting pipe 27 facing the outer side of the bearing beam 2 and exposing the pipe orifice. The steel pipe shear pin 20 is inserted into the shear key reserved hole 14 of the steel structure track slab bottom plate 6, so that the lower end of the middle transverse stiffening rib 8 is clamped into a rib plate slot hole 24 of the steel pipe shear pin 20. The lower end of the steel pipe shear pin 20 is placed in the cubic base 19 at the corresponding position, after the position in the plane is finely adjusted, concrete is poured from the concrete grouting pipe 27 of the cubic base 19, and the whole gap between the cubic base 19 and the steel pipe shear pin 20 is filled. When the concrete is hardened, the shear pin can enable the bearing beam 2 and the steel structure track plate 1 to work together to resist lateral displacement.
The cross-shaped steel shear key consists of a cross-shaped shear pin 21 and a cubic base 19. The cross shear pin 21 is composed of a shear pin bottom plate 22, a shear pin main plate 25 and two shear pin side plates 26, wherein the shear pin main plate 25 and the two shear pin side plates 26 are vertically welded and connected, and are jointly welded and connected to the shear pin bottom plate 22. Concave holes are reserved at the joint of the shear pin side plate 26 and the shear pin main plate 25 to form welding processing holes 28, so that welding operation is facilitated. The cubic base 19 is a square uncovered cubic steel box, and a concrete grouting pipe 27 is vertically arranged at the lower part of the cubic steel box. The size of the shear pin bottom plate 22 is slightly smaller than the inner diameter of the cubic base 19, and the shear pin bottom plate can move left and right in the cubic base to perform precision adjustment. The lower end of the cubic base 19 is embedded and poured on the top surface of the bearing beam 2 according to the corresponding position. The lower part of which is provided with a concrete grouting pipe 27 facing the outer side of the bearing beam 2 and exposing the pipe orifice. The cross shear pin 21 is inserted into the shear key reserved hole 14 of the steel structure track slab bottom plate 6, so that the lower end of the middle transverse stiffening rib 8 is aligned with the upper end of the shear pin main plate 25 and then is welded and connected. The lower end of the cross shear pin 21 is placed in the cubic base 19 at the corresponding position, after the position in the plane is finely adjusted, concrete is poured from the concrete grouting pipe 27 of the cubic base 19, and the whole gap between the cubic base 19 and the cross shear pin 21 is filled. When the concrete is hardened, the shear pin can enable the bearing beam 2 and the steel structure track plate 1 to work together to resist lateral displacement.
The bearing beam 2 and the steel structure track plate 1 can be assembled in a factory, then are transported to the site in a unified way, and then are hoisted, installed and positioned; also can separately transport to the scene with spandrel girder 2 and steel construction track board 1, hoist respectively, treat the spandrel girder after the primary positioning is accomplished, build temporary scaffolding beside the track, hoist steel construction track board 1 to the spandrel girder on, connect, install accurate positioning both again.
The bearing beam 2 is connected with the steel structure track plate 1 through an anti-pulling key and an anti-shearing key, and after the steel track plate and the bearing beam are positioned, grouting is carried out in a reserved grouting hole to be solidified, so that the whole bearing beam is stressed.
Claims (10)
1. A superposed track beam for a magnetic suspension circuit is characterized in that the track beam comprises an upper layer steel structure track plate (1), a lower layer bearing beam (2) and a connecting mechanism (3) between the upper layer steel structure track plate and the lower layer bearing beam, the cross section of the upper layer steel structure track plate (1) is of a T-shaped structure, the upper part of the upper layer steel structure track plate is covered with a sliding plate (4) at the top of the steel structure track plate, the inner part of the upper layer steel structure track plate is of a hollow structure, the two side parts below the upper layer steel structure track plate are of inwards concave arcs, functional areas are arranged inside the two sides in the width direction, the inner part of the bearing beam is provided with transverse and longitudinal stiffening ribs, the lower bearing beam (2) is a prestressed concrete box beam, a connecting mechanism (3) capable of adjusting the relative displacement between the upper steel structure track slab (1) and the lower bearing beam (2), the upper layer steel structure track plate (1) takes a certain modulus as a system unit, and the steel is manufactured and machined in a factory.
2. The superposed track beam for the magnetic suspension circuit according to claim 1, wherein the steel structure track slab (1) on the upper layer is paved with a steel structure track slab top sliding slab (4) for the top, two side edges of the steel structure track slab top sliding slab (4) are vertically downwards provided with steel structure track slab lateral guide slabs (5), the lower end of the steel structure track slab lateral guide slabs (5) is sequentially and symmetrically connected with a functional area bottom plate (13), a dovetail groove (7) and an arc-shaped bottom plate (12) from outside to inside, and the lower part of the arc-shaped bottom plate (12) is connected with the steel structure track slab bottom plate (6).
3. The laminated track beam for the magnetic suspension circuit as claimed in claim 2, wherein a middle longitudinal stiffening rib (10) is arranged at the longitudinal middle position inside the steel structure track slab (1), edge longitudinal stiffening ribs (11) are arranged at both sides of the steel structure track slab, the longitudinal stiffening ribs (10) and the longitudinal stiffening ribs (11) are arranged in the middle and parallel to the lateral guide plates (5) of the steel structure track slab, a functional area is formed between the longitudinal stiffening rib (11) at the edge and the lateral guide plates (5) of the steel structure track slab, transverse stiffening ribs are uniformly distributed in the steel structure track slab (1) in the transverse direction, the transverse stiffening ribs and the longitudinal stiffening ribs are arranged in the perpendicular cross mode, and the shape of the transverse stiffening ribs is matched with the internal structure of the steel structure track slab (1).
4. A laminated track beam for magnetic levitation lines as claimed in claim 3, characterised in that the edge longitudinal stiffeners (11) are arranged in the centre of the dovetail grooves (7); the transverse stiffening ribs comprise a middle transverse stiffening rib (8) and a functional area transverse stiffening rib (9); two middle transverse stiffening ribs (8) are arranged in the middle track slab main body; the functional areas on two sides are respectively provided with a transverse stiffening rib (9) of the functional area, and the four stiffening ribs are distributed on the same straight line.
5. The laminated track beam for magnetic suspension lines as claimed in claim 3, wherein the steel structure track slab bottom plate (6) is provided with a square shear key reservation hole (14) along each middle transverse stiffening rib (8) in the middle, and anti-pulling key reservation holes (15) are provided outside the middle transverse stiffening ribs (8) at the outermost sides of the two ends.
6. The laminated track beam for magnetic levitation lines as recited in claim 1, wherein the lower layer bearing beam (2) is composed of an upper square bearing beam main body (17) and a lower bearing beam bottom plate (18), the bearing beam main body (17) is hollowed out in the middle, and the upper surface of the flange of the bearing beam bottom plate (18) is provided with a certain gradient.
7. The laminated track beam for the magnetic suspension line as claimed in claim 5, wherein the connecting mechanism (3) is a pulling-resistant bolt and a shear key, the steel-structure track plate (1) is fixedly connected with the front end and the rear end of the lower bearing beam (2) through the pulling-resistant bolt, and the lower part of the middle transverse stiffening rib (8) at the bottom of the steel-structure track plate (1) is connected with the lower bearing beam (2) through the shear key.
8. The laminated track beam for the magnetic suspension line as claimed in claim 7, wherein the shear key is a square steel tube shear key, and comprises a square steel tube shear pin (20) and a cubic base (19), the bottom of the square steel tube shear pin (20) is connected with a shear pin base plate (22), the square steel tube shear pin (20) and the shear pin base plate (22) are integrally arranged in the cubic base (19), the size of the shear pin base plate (22) is smaller than the inner diameter of the cubic base (19) and can move inside the cubic base (19), a rib plate slot hole (24) matched with the middle transverse stiffening rib (8) is formed at the upper end of a square tube (23) of the square steel tube shear pin (20), and a concrete grouting pipe (27) is arranged at the lower part of the cubic base (19).
9. The laminated track beam for the magnetic suspension line as claimed in claim 7, wherein the shear key is a cross-shaped steel shear key, and comprises a cross-shaped shear pin (21) and a cubic base (19), the cross-shaped shear pin (21) is formed by vertically welding a shear pin main plate (25) and a shear pin side plate (26) to form a cross shape, a shear pin bottom plate (22) is welded at the bottom of the cross-shaped shear pin (21), the shear pin bottom plate (22) is arranged in the cubic base (19), the size of the shear pin bottom plate (22) is smaller than the inner diameter of the cubic base (19), and a concrete grouting pipe (27) is arranged at the lower part of the cubic base (19).
10. The laminated track beam for magnetic levitation lines as recited in claim 9, wherein the shear pin side plate (26) is recessed from the shear pin main plate (25) to form a weld hole (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996663.1U CN210826953U (en) | 2019-06-28 | 2019-06-28 | Superposed track beam for magnetic suspension line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996663.1U CN210826953U (en) | 2019-06-28 | 2019-06-28 | Superposed track beam for magnetic suspension line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210826953U true CN210826953U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920996663.1U Expired - Fee Related CN210826953U (en) | 2019-06-28 | 2019-06-28 | Superposed track beam for magnetic suspension line |
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| Country | Link |
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| CN (1) | CN210826953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195385A (en) * | 2019-06-28 | 2019-09-03 | 上海交通大学 | A kind of staked type track girder for magnetic suspension route |
| CN114352038A (en) * | 2021-12-30 | 2022-04-15 | 中国建筑第八工程局有限公司 | Steel structure transportation equipment and construction method thereof |
-
2019
- 2019-06-28 CN CN201920996663.1U patent/CN210826953U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195385A (en) * | 2019-06-28 | 2019-09-03 | 上海交通大学 | A kind of staked type track girder for magnetic suspension route |
| CN114352038A (en) * | 2021-12-30 | 2022-04-15 | 中国建筑第八工程局有限公司 | Steel structure transportation equipment and construction method thereof |
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