CN210481914U - Novel suspension type single-rail track beam structure - Google Patents
Novel suspension type single-rail track beam structure Download PDFInfo
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- CN210481914U CN210481914U CN201920500586.6U CN201920500586U CN210481914U CN 210481914 U CN210481914 U CN 210481914U CN 201920500586 U CN201920500586 U CN 201920500586U CN 210481914 U CN210481914 U CN 210481914U
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Abstract
A novel suspension type air rail beam structure is provided to effectively improve the overall rigidity and fatigue resistance of a rail beam, simplify the structure, shorten the construction period and improve the maintainability. The thin-wall steel box girder structure comprises a box body, a left bottom plate and a right bottom plate which are used as walking surfaces, a box body stiffening structure arranged on the box body, and bottom plate stiffening structures arranged on the left bottom plate and the right bottom plate. The box is an integral box side plate with an inverted U-shaped section, and the top of the box is arc-shaped and protrudes upwards. And the left side bottom plate and the right side bottom plate are respectively welded and fixed at the lower ends of the two sides of the side plate of the box body.
Description
Technical Field
The utility model relates to a track traffic, in particular to suspension type single track rail beam structure.
Background
The suspension type monorail track beam is a thin-wall steel box beam with an opening at the lower part, the train runs below the track beam in a suspension mode, and the bogie is positioned inside the box body. The track beam provides bearing and guiding functions for the train, is a carrier of a traction power supply system, integrates various engineering functions into a whole, and therefore needs certain strength, rigidity and stability technically.
Due to the carrier's particularity, the construction of the track beam is complex. Firstly, the structural limitation of the clear width and the clear height of the inner space of the rail beam meets the requirement of the stability of the whole structure of the rail beam. The side wall, the running surface and the reinforcing plate of the track beam are all made of steel thin walls, and the thickness of the side wall, the running surface and the reinforcing plate is very small compared with the height and the longitudinal span of the side wall, the running surface and the reinforcing plate, and the side wall, the running surface and the reinforcing plate are typical thin-wall structures. The track beam bears the vertical load generated by the train running and simultaneously bears larger transverse load and torque. Secondly, the spatial dimensions of the track beam need to meet vehicle and building clearance requirements.
The main body of the existing track beam is formed by welding a left web, a right web, a top plate, a left bottom plate and a right bottom plate which are made of steel, the left web and the right web are transversely and alternately welded on the bottom surface of the top plate, the lower ends of the left web and the right web are respectively welded with the left bottom plate and the right bottom plate, and an opening below the thin-wall steel box beam is formed between the opposite end surfaces of the left bottom plate and the right bottom plate. Longitudinal stiffening ribs are welded on the bottom surfaces of the left bottom plate and the right bottom plate. The track beam structure can basically meet the use requirements, but has certain defects which are mainly shown in that: 1. the top plate is horizontal and is not easy to drain; 2. the top plate and the web plate are connected by adopting bilateral fillet welds, and the penetration welds are only formed by forming grooves near the beam ends, so that the fatigue allowable stress of the whole track beam is smaller, and meanwhile, the machining difficulty of the whole track beam is increased due to the longer weld; 3. the transverse stiffening ribs of the bottom plate are large in number, the processing difficulty and the processing period of the whole track beam are increased, and the transverse stiffening ribs are difficult to maintain.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel suspension type air rail track roof beam structure is provided to effectively improve the bulk rigidity and the fatigue resistance ability of track roof beam, simplify the structure and shorten construction cycle, improve the maintainability.
The utility model provides a technical scheme that its technical problem adopted as follows:
the utility model discloses a novel single track roof beam structure of suspension type, include by the box and as walking the thin wall steel box girder structure that left side bottom plate, the right side bottom plate of line face constitute to and set up box stiffening structure on the box and set up the bottom plate stiffening structure on left side bottom plate, right side bottom plate, characterized by: the box body is an integral box body side plate with an inverted U-shaped section, and the top of the box body is upwards convex in an arc shape; and the left side bottom plate and the right side bottom plate are respectively welded and fixed at the lower ends of the two sides of the side plate of the box body.
The box stiffening structure is integral diaphragm plates which are longitudinally arranged at intervals, and the integral diaphragm plates are welded with the outer wall of the side plate of the integral box body and the top surfaces of the overhanging sections of the left bottom plate and the right bottom plate.
The bottom plate stiffening structure is an integral bottom plate longitudinal stiffening rib extending along the longitudinal full length of the left bottom plate and the right bottom plate, the section of the integral bottom plate longitudinal stiffening rib is in a concave arc shape, and the transverse two ends of the integral bottom plate longitudinal stiffening rib are welded with the bottom surfaces of the left bottom plate and the right bottom plate.
The utility model has the advantages that the box body is an integral box body side plate with the inverted U-shaped section, the original track beam top plate is cancelled, the welding seam between the top plate and the web plate is removed, the fatigue performance of the structure is improved, and the construction procedures are reduced; the top of the integral box body side plate is convex upwards in an arc shape, so that the bending rigidity of the whole and the top of the box body structure is enhanced, and the box body structure has a drainage function; the box body stiffening structure is an integral diaphragm plate which is longitudinally arranged at intervals, so that the overall performance of the diaphragm plate is improved; the bottom plate stiffening structure is an integral bottom plate longitudinal stiffening rib which extends along the longitudinal full length of the left bottom plate and the right bottom plate and has a concave arc-shaped section, so that the longitudinal and transverse bending rigidity of the bottom plate is enhanced; the adoption of the integral box body side plate, the integral diaphragm plate and the integral bottom plate longitudinal stiffening rib effectively improves the integral rigidity and the fatigue resistance of the track beam, greatly reduces the length of a welding seam, simplifies the structure, shortens the construction period, is very convenient to maintain, and simultaneously also enhances the landscape effect of the suspension type monorail track beam.
Drawings
The specification includes the following two figures:
fig. 1 is a sectional view of a novel suspended monorail track beam structure of the present invention, showing the components and corresponding markings: the side plate of the integral box body 10, the left bottom plate 21, the right bottom plate 22, the integral diaphragm plate 30 and the integral bottom plate longitudinal stiffening rib 40;
fig. 2 is a cross-sectional view of a prior art suspended monorail track beam construction showing the components and corresponding references: the structure comprises a top plate 11, a left web plate 12, a right web plate 13, a left bottom plate 21, a right bottom plate 22, a top plate diaphragm plate 31, a left web plate diaphragm plate 32, a right web plate diaphragm plate 33, a bottom plate longitudinal stiffening rib 41 and a bottom plate diaphragm plate 42.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Fig. 2 is a cross-sectional view showing a conventional suspended monorail track beam structure, in which a left web 12 and a right web 13 are welded upright to the bottom surface of a top plate 11, a left bottom plate 21 is welded to the lower end of the left web 12, and a right bottom plate 22 is welded to the lower end of the right web 13. The box stiffening structure comprises a top plate diaphragm plate 31, a left web diaphragm plate 32 and a right web diaphragm plate 33 which are arranged at intervals longitudinally, the top plate diaphragm plate 31 is welded on the top surface of the top plate 11, the left web diaphragm plate 32 is welded with the outer wall of the left web 12, the top plate 11 extends out of the bottom surface and the left bottom plate 21 extends out of the top surface, and the right web diaphragm plate 33 is welded with the outer wall of the right web 13, the top plate 11 extends out of the bottom surface and the left bottom plate 21 extends out of the top surface. The bottom plate stiffening structure is composed of bottom plate diaphragm plates 42 arranged at intervals along the longitudinal direction and bottom plate longitudinal stiffening ribs 41 extending along the longitudinal full length, the bottom plate longitudinal stiffening ribs 41 are vertically welded on the bottom surfaces of the left bottom plate 21 and the right bottom plate 22, and the bottom plate diaphragm plates 42 are welded with the bottom plate longitudinal stiffening ribs 41 and the bottom surfaces of the left bottom plate 21 and the right bottom plate 22. The disadvantages are that the top plate 11 is horizontal and is not easy to drain; the top plate 11 is connected with the left web 12 and the right web 13 by adopting double-corner welding seams, and only a groove is formed near the beam end for penetration welding, so that the fatigue allowable stress of the whole track beam is smaller, and the processing difficulty of the whole track beam is increased due to longer welding seams; the number of the bottom plate stiffening structures is large, the processing difficulty and the processing period of the whole track beam are increased, and the track beam is difficult to maintain.
Referring to fig. 1, the utility model discloses a novel single track roof beam structure of suspension type, include by the box with as walk the thin-walled steel case girder construction that left side bottom plate 21, right side bottom plate 22 of running the face constitute to and set up box stiffening structure on the box and set up the bottom plate stiffening structure on left side bottom plate 21, right side bottom plate 22. The box body is an integral box body side plate 10 with an inverted U-shaped section, and the top of the box body is arc-shaped and protrudes upwards. The left bottom plate 21 and the right bottom plate 22 are respectively welded and fixed at the lower ends of the two sides of the box body side plate 10. The original track beam top plate is eliminated, the welding seam between the top plate and the web plate is removed, the fatigue performance of the structure is improved, and the construction procedures are reduced; the top of the integral box body side plate is arc-shaped and protrudes upwards, so that the bending rigidity of the whole and the top of the box body structure is enhanced, and the box body structure has a drainage function.
Referring to fig. 1, the box body stiffening structure is integral diaphragm plates 30 arranged at intervals longitudinally, and each integral diaphragm plate 30 is welded with the outer wall of the integral box body side plate 10 and the top surfaces of the overhanging sections of the left side bottom plate 21 and the right side bottom plate 22, so that the integral performance of the diaphragm plate is improved. The bottom plate stiffening structure is an integral bottom plate longitudinal stiffening rib 40 extending along the longitudinal full length of the left bottom plate 21 and the right bottom plate 22, the section of the integral bottom plate longitudinal stiffening rib 40 is in a concave arc shape, and the transverse two ends of the integral bottom plate longitudinal stiffening rib are welded with the bottom surfaces of the left bottom plate 21 and the right bottom plate 22, so that the longitudinal and transverse bending rigidity of the bottom plate is enhanced.
Referring to fig. 1, the utility model discloses synthesize and adopt integral box sideboard, integral cross slab and integral bottom plate vertical stiffening rib, effectively improve the bulk rigidity and the fatigue resistance ability of track roof beam, the welding seam length that has significantly reduced simplifies the structure and shortens construction cycle, and maintains very conveniently, has also strengthened the view effect of suspension type single track roof beam simultaneously.
The above description is only used for illustrating some principles of the novel suspension type single rail beam structure of the present invention, and it is not intended to limit the present invention to the specific structure and application range shown and described, so all the corresponding modifications and equivalents that may be utilized all belong to the claims of the present invention.
Claims (3)
1. The utility model provides a novel suspension type single track roof beam structure, includes by the box and as walking the thin-walled steel case girder construction that left side bottom plate (21), right side bottom plate (22) of face constitute to and set up box stiffening structure on the box and set up the bottom plate stiffening structure on left side bottom plate (21), right side bottom plate (22), characterized by: the box body is an integral box body side plate (10) with an inverted U-shaped section, and the top of the box body is upwards protruded in an arc shape; the left side bottom plate (21) and the right side bottom plate (22) are respectively welded and fixed at the lower ends of the two sides of the box body side plate (10).
2. A novel suspended monorail track beam structure as defined in claim 1, wherein: the box body stiffening structure is integral diaphragm plates (30) which are longitudinally arranged at intervals, and the integral diaphragm plates (30) are welded with the outer wall of the integral box body side plate (10), the top surfaces of the extending sections of the left side bottom plate (21) and the right side bottom plate (22).
3. A novel suspended monorail track beam structure as defined in claim 1, wherein: the bottom plate stiffening structure is an integral bottom plate longitudinal stiffening rib (40) extending along the longitudinal full length of the left bottom plate (21) and the right bottom plate (22), the section of the integral bottom plate longitudinal stiffening rib (40) is in a concave arc shape, and the transverse two ends of the integral bottom plate longitudinal stiffening rib are welded with the bottom surfaces of the left bottom plate (21) and the right bottom plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920500586.6U CN210481914U (en) | 2019-04-12 | 2019-04-12 | Novel suspension type single-rail track beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920500586.6U CN210481914U (en) | 2019-04-12 | 2019-04-12 | Novel suspension type single-rail track beam structure |
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| Publication Number | Publication Date |
|---|---|
| CN210481914U true CN210481914U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920500586.6U Active CN210481914U (en) | 2019-04-12 | 2019-04-12 | Novel suspension type single-rail track beam structure |
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| CN (1) | CN210481914U (en) |
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- 2019-04-12 CN CN201920500586.6U patent/CN210481914U/en active Active
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