CN209989647U - Single-box double-chamber overhead magnetic suspension traffic structure with closed web plates - Google Patents
Single-box double-chamber overhead magnetic suspension traffic structure with closed web plates Download PDFInfo
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- CN209989647U CN209989647U CN201821253631.4U CN201821253631U CN209989647U CN 209989647 U CN209989647 U CN 209989647U CN 201821253631 U CN201821253631 U CN 201821253631U CN 209989647 U CN209989647 U CN 209989647U
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Abstract
The patent discloses a single case double-chamber overhead magnetic levitation traffic structure of web obturator belongs to the magnetic levitation traffic field. This patent is placed maglev train, track roof beam, track board, guide rail inside the closed roof beam, and maglev train passes through the guide rail and moves in the closed roof beam, makes maglev train move under comparatively confined environment, very easily receives external conditions such as ice and snow and hail and the problem of stopping transport when overcoming present stage maglev train operation, has increased the rigidity of box roof beam simultaneously, more is favorable to ride comfort and the security of operation.
Description
Technical Field
The patent relates to a single-box double-chamber overhead magnetic levitation traffic structure with closed web holes, which is applied to the field of magnetic levitation traffic.
Background
The existing magnetic levitation track beam mainly adopts a track form of a railway box beam, and a magnetic levitation train runs on the top of the box beam. The train can be influenced by external conditions such as ice, snow or hail during operation, and the requirement of all-weather operation cannot be met.
The guard rails are additionally arranged when the existing railway lines are laid on the bridge, so that the train is prevented from rolling out along the bridge, and serious accidents caused by the fact that the train deviates sideways to impact the bridge or falls down from the bridge are avoided. The existing magnetic suspension traffic is elevated track traffic but the possibility of the derailment of the magnetic suspension train is not considered, and the magnetic suspension train can have very serious consequences once derailed.
Patent No. CN103298675A discloses a vacuum tube transportation system, the pipeline adopted by the system is a closed and continuous pipe with infinite length, the structure can be seen as an infinite continuous beam structure, as shown in fig. 16, the pipe is greatly affected by temperature force, because the pipe is vacuumized, the pipe needs to have good sealing performance, has strict requirements on the quality and processing of materials, and is not suitable for long-distance rail transportation.
The top stress structure system of the traditional magnetic suspension track box-shaped beam is a top plate stress structure system, and the stress form of a web plate of the magnetic suspension track box-shaped beam is a shear force tau of the web plate1And compressive stress sigmacThe closed beam is in a compression-shear state, the 'bending-torsion effect' is easily generated to cause structural instability, the transverse influence of the train operation in a curve section on the closed beam body is increased, and the closed beam generates the hazards of beam body rollover and the like under special conditions.
The distance between the top plate and the bottom plate of the traditional magnetic levitation track box-shaped beam is short, and according to the stress characteristic of the beam, as shown in figure 13, the top of the box-shaped beam is stressed by pressure F1The bottom of the box beam being subjected to a tensile force F2The overall tension and pressure of the box beam section are balanced with each other, namely:
ΣF1＝ΣF2
the rigidity EI of the section of the box-shaped beam is in direct proportion to the third power of the height H of the section of the beam, and the larger the height difference between the top surface and the bottom surface of the box-shaped beam is, the more obvious the rigidity of the section of the box-shaped beam is increased. The maximum shear strength formula of concrete without considering the influence of steel bars is as follows:
Vc＝0.7ftbh0
it can be seen that the effective height h of the box girder is constant in the transverse dimension b of the box girder0The higher the shear strength of the box beam. Made of rectangular concrete without taking into account the influence of reinforcing barsThe formula of the torsional section coefficient of (1):
Wt＝βh3
in the above formula, the ratio of β to the cross-sectional dimension is related to the torsional cross-sectional coefficient W of the box beam as the height h of the box beam increases when the transverse dimension b of the box beam is constanttThe larger, i.e. the stronger the torsion resistance of the box beam.
Aiming at the problems, the practical situation of magnetic suspension traffic is combined, and a lot of research is carried out by a patentee through analysis and according to the existing theory and practical experience and from the aspect of improving the stress principle and the effect of the track beam, and finally the patent is provided.
SUMMERY OF THE UTILITY MODEL
The technical problem that this patent will be solved is: the utility model provides a single case double-chamber overhead maglev traffic structure of web obturator, place maglev train, track roof beam, track board, guide rail inside the beam of obturator, make maglev train move under a comparatively confined environment, overcome the problem that external conditions such as very easily receive ice and snow and hail and shut down when present stage maglev train operation, increased the rigidity of box roof beam simultaneously, more be favorable to the ride comfort and the security of operation.
The technical scheme adopted by the patent for solving the technical problem is as follows:
a single case double chamber overhead magnetic levitation traffic structure of web obturator, including overhead pier, track roof beam, track board and guide rail, its characterized in that: a single-box double-chamber elevated magnetic suspension traffic structure with a closed web plate is formed by adopting a closed beam, an elevated pier, a track beam, a track plate and a guide rail; the closed beam is connected with the viaduct pier through a support, the track beam is connected with the track plate through a cast-in-place concrete cushion layer, and the guide rail is connected with the track plate through a fastener.
The single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is characterized in that: the single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is a single closed beam structure or a structure formed by assembling two closed beams.
The single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is characterized in that: the closed beam is a concrete box body which is integrally prefabricated, and the top plate of the closed beam is arc-shaped.
The single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is characterized in that: the plane linear structure of the closed beam is a linear structure or a curve linear structure.
The single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is characterized in that: the track beam positioned in the closed beam is a structure which is poured together with the closed beam at the same time or a prefabricated assembly structure which is poured with the closed beam at different times.
Compared with the prior art, the beneficial effect of this patent is:
this patent is through having designed the single case double-chamber overhead maglev traffic structure of a web obturator, adopts the form of a beam of remaining silent, places maglev train, track roof beam, track board, guide rail inside a beam of remaining silent, makes maglev train move under a comparatively confined environment, very easily receives the influence of external conditions such as ice and snow and hail and the problem of stopping transport when having overcome present stage maglev train operation, more is favorable to ride comfort and the security of operation.
This patent is through having designed the single case two room overhead maglev traffic structures of a web obturator, and with the outside driving system of existing maglev traffic move into the inside of the beam that closes, the web of the beam that closes after the maglev train derails can play the effect of guardrail in the railway, prevents that the maglev train from rolling out along the bridge to other skew striking bridge or from the bridge weight down cause the serious accident.
This patent is through having designed the single case double-chamber overhead magnetic levitation traffic structure of a web obturator, and the beam of remaining silent is the simple structure of no negative pressure, as shown in figure 17, and this system construction is easy, and the atress is simple, need not consider the influence of temperature-force.
This patent is through having designed the single case double-chamber overhead magnetic levitation traffic structure of a web obturator, after adopting the beam of remaining silent, because the needs of driving, has increased the size of the beam of remaining silent to the bending resistance, the shearing and the torsional resistance of the beam of remaining silent have been improved greatly.
Drawings
FIG. 1 is a front view of a magnetic levitation integral prefabricated track beam straight-line segment structure
FIG. 2 is a schematic view of a magnetic levitation integrally prefabricated track beam straight-line segment structure
FIG. 3 is a front view of a magnetic levitation non-integral prefabricated track beam straight-line segment structure
FIG. 4 is a schematic view of a magnetic levitation non-integral prefabricated track beam straight-line segment structure
FIG. 5 is a schematic view of a curved section of a magnetic levitation integrally prefabricated track beam
FIG. 6 is a schematic view of a curved section of a magnetic levitation non-integral prefabricated track beam
Figure 7 front view of magnetic levitation integral assembling type track beam straight-line segment structure
Figure 8 schematic diagram of magnetic levitation integral assembling type track beam straight-line segment structure
FIG. 9 is a front view of a magnetic levitation non-integral assembly type track beam straight-line segment structure
FIG. 10 schematic diagram of magnetic levitation non-integral assembly type track beam straight-line segment structure
Figure 11 schematic diagram of curve section structure of magnetic suspension integral assembled track beam
FIG. 12 is a schematic view of a curved section of a magnetic levitation non-integral assembly type track beam
Figure 13 existing magnetic suspension track box beam stress analysis chart
FIG. 14 schematic cross-sectional view of box-shaped beam of existing magnetic levitation track
FIG. 15 is a schematic cross-sectional view of an overhead closed magnetic levitation track beam
FIG. 16 schematic view of a vacuum pipe transport system pedestal
FIG. 17 schematic view of a closed beam mount
Features indicated by the numerals in the figures will be readily apparent to those skilled in the art in view of the following embodiments and will not be described in detail.
Detailed Description
Description of the patent principles
The function principle of the single-box double-chamber overhead magnetic levitation transportation structure with the closed web plates is further described with reference to fig. 13, 14 and 15. It should be noted here that the embodiments described by way of figures are only illustrated schematically and should not be understood as limiting the patent.
1) The closed beam is a bottom plate stress structure
This patent provides a single case two room overhead magnetic levitation traffic structure of web obturator moves into the inside of the beam that closes a mouthful with the outside driving system of existing magnetic levitation traffic, changes original box girder top stress structure system that is the roof stress structure system into the inside stress structure system that closes a mouthful roof beam that is bottom plate stress structure system, and box girder web atress form receives shear force tau for the web in original box girder top stress structure system1And compressive stress sigmacUnder the condition of pressure shear, the stress form of the web plate in the stress system in the closed beam is the shear force tau applied to the web plate2And tensile stress sigmatThe closed beam is not easy to generate hazards such as side turning of the beam body under special conditions.
2) The closed beam improves the mechanical property of the existing magnetic suspension box beam
From atress and function, this patent provides a single case two rooms overhead magnetic levitation traffic structure of web obturator, has changed existing box girder atress form, becomes the bottom plate atress by the roof atress, greatly increased the roof beam height, is directly proportional with the cubic of the cross-sectional height h of box girder by the rigidity EI of concrete box girder cross-section, because h is directly proportional2>>h1Therefore, the rigidity of the section of the closed beam is far greater than that of the section of the existing magnetic suspension track beam. Maximum shear strength V of concrete without considering the influence of reinforcing barsc＝0.7ftbh0It can be known that the effective height h of the concrete box beam is constant under the condition that the transverse dimension b of the concrete box beam is constant0The higher the shear strength of the concrete box beam, because of h2>>h1Therefore, the effective height of the closed beam is far greater than that of the existing magnetic floating track beam, and the maximum shear strength of the closed beam is far greater than that of the existing magnetic floating track beam. Torsional section coefficient W of concrete box girder without considering influence of steel bart＝βh3It can be seen that the higher the height h of the concrete box girder, the larger the coefficient of torsional section of the concrete box girder, given the transverse dimension b of the concrete box girder, because h2>>h1Therefore, the torsional section coefficient of the closed beam is far larger than that of the existing magnetic levitation track beam, and the torsional resistance of the closed beam is far larger than that of the existing magnetic levitation track beam.
The action principle and the function corresponding to the single-box double-chamber overhead magnetic levitation transportation structure with the closed web plates are explained in detail. It should be noted that this principle is also applicable to the single-line magnetic levitation track beam straight-line segment, the dual-line magnetic levitation track beam straight-line segment, the single-line magnetic levitation track beam curved-line segment, and the dual-line magnetic levitation track beam curved-line segment, and the above operation principle will not be described in detail in the following embodiments.
This patent is further illustrated with reference to examples.
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining figures 1 and 2. The structure is formed by matching a linear closed beam 1 for a linear line, a linear track beam 2a, a linear track beam 2b, a support 3, a pier 4, a linear track plate 5a, a linear track plate 5b, a linear guide rail 6a and a linear guide rail 6 b. The linear closed beam 1, the linear track beam 2a and the linear track beam 2b are prefabricated and molded at the same time, the linear closed beam 1, the linear track beam 2a and the linear track beam 2b are erected on a pier 4 through a support 3 after being prefabricated, a linear track plate 5a is laid on the linear track beam 2a through a cast-in-place concrete cushion layer 8a, a linear track plate 5b is laid on the linear track beam 2b through a cast-in-place concrete cushion layer 8b, a linear guide rail 6a is connected with the linear track plate 5a through a fastener 7a, and a linear guide rail 6b is connected with the linear track plate 5b through a fastener 7 b.
Embodiment 2 magnetic levitation non-integral prefabricated track beam straight-line segment structure
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining figures 3 and 4. The structure is formed by matching a linear closed beam 9a, a linear closed beam 9b, a linear track beam 10a, a linear track beam 10b, a support 11a, a support 11b, a pier 12, a linear track plate 13a, a linear track plate 13b, a linear guide rail 14a and a linear guide rail 14b which are used for a linear line. The linear closed beam 9a and the linear track beam 10a are prefabricated and formed at the same time, the linear closed beam 9b and the linear track beam 10b are prefabricated and formed at the same time, the linear closed beam 9a and the linear track beam 10a are prefabricated and erected on a pier 12 through a support 11a, the linear closed beam 9b and the linear track beam 10b are prefabricated and erected on the pier 12 through a support 11b, the linear closed beam 9a and the linear closed beam 9b are connected through a wet joint 16, the linear track plate 13a is laid on the linear track beam 10a through a concrete cushion 17a poured on site, the linear track plate 13b is laid on the linear track beam 10b through a concrete cushion 17b poured on the site, the linear guide rail 14a is connected with the linear track plate 13b through a fastener 15a, and the linear guide rail 14b is connected with the linear track plate 13b through a fastener 15 b.
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining with figure 5. The structure is formed by matching a curve closed beam 18 for a curve line, a curve track beam 19a, a curve track beam 19b, a support 20, a pier 21, a curve track plate 22a, a curve track plate 22b, a curve guide rail 23a and a curve guide rail 23 b. The curve closed beam 18, the curve track beam 19a and the curve track beam 19b are prefabricated and molded at the same time, the curve closed beam 18a and the curve track beam 19a are prefabricated and erected on a pier 21 through a support 20, the curve closed beam 18b and the curve track beam 19b are prefabricated and erected on the pier 21 through the support 20, a curve track plate 22a is laid on the curve track beam 19a through a cast-in-place concrete cushion layer 25a, a curve track plate 22b is laid on the curve track beam 19b through a cast-in-place concrete cushion layer 25b, a curve guide rail 23a is connected with the curve track plate 22a through a fastener 24a, and a curve guide rail 23b is connected with the curve track plate 22b through a fastener 24 b.
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining with figure 6. The structure is formed by matching a curved closed beam 26a, a curved closed beam 26b, a curved track beam 27a, a curved track beam 27b, a support 28a, a support 28b, a pier 29, a curved track plate 30a, a curved track plate 30b, a curved guide rail 31a and a curved guide rail 31b for a curved line. The curved closed beam 26a and the curved track beam 27a are prefabricated and formed at the same time, the curved closed beam 26b and the curved track beam 27b are prefabricated and formed at the same time, the curved closed beam 26a and the curved track beam 27a are prefabricated and erected on a pier 29 through a support 28a, the curved closed beam 26b and the curved track beam 27b are prefabricated and erected on the pier 29 through a support 28b, the curved closed beam 26a and the curved closed beam 26b are connected through a wet joint 33, the curved track plate 30a is laid on the curved track beam 27a through a concrete cushion 34a poured on site, the curved track plate 30b is laid on the curved track beam 27b through a concrete cushion 34b poured on site, the curved track 31a is connected with the curved track plate 30a through a fastener 32a, and the curved track 31b is connected with the curved track plate 30b through a fastener 32 b.
Embodiment 5 magnetic levitation integral assembling type track beam straight-line segment structure
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining figures 7 and 8. The structure is formed by matching a linear closed beam 35, a linear track beam 36a, a linear track beam 36b, a support 37, a pier 38, a linear track plate 39a, a linear track plate 39b, a linear guide rail 40a and a linear guide rail 40b which are used for a linear line. The straight closed beam 35 is erected on a pier 38 through a support 37 after being prefabricated, the straight track beam 36a is assembled in the straight closed beam 35 after being prefabricated, the straight track beam 36b is assembled in the straight closed beam 35 after being prefabricated, the straight track plate 39a is laid on the straight track beam 36a through a cast-in-place concrete cushion 42a, the straight track plate 39b is laid on the straight track beam 36b through a cast-in-place concrete cushion 42b, the straight track 40a is connected with the straight track plate 39a through a fastener 41a, and the straight track 40b is connected with the straight track plate 39b through a fastener 41 b.
Embodiment 6 magnetic levitation non-integral assembling type track beam straight-line segment structure
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining figures 9 and 10. The structure is formed by matching a linear closed beam 43a, a linear closed beam 43b, a linear track beam 44a, a linear track beam 44b, a support 45a, a support 45b, a pier 46, a linear track plate 47a, a linear track plate 47b, a linear guide rail 48a and a linear guide rail 48b which are used for a linear line. The prefabricated linear closed beam 43a is erected on a pier 46 through a support 45a, the prefabricated linear closed beam 43b is erected on the pier 46 through a support 45b, the prefabricated linear closed beam 43a and the prefabricated linear closed beam 43b are connected through a wet joint 50, the prefabricated linear track beam 36a is assembled in the linear closed beam 35a, the prefabricated linear track beam 36b is assembled in the linear closed beam 35b, the prefabricated linear track plate 47a is laid on the linear track beam 44a through a cast-in-place concrete cushion layer 51a, the prefabricated linear track plate 47b is laid on the linear track beam 44b through a cast-in-place concrete cushion layer 51b, the prefabricated linear guide rail 48a is connected with the prefabricated linear track plate 47b through a fastener 49a, and the prefabricated linear guide rail 48b is connected with the prefabricated track plate 47b through a fastener 49 b.
Embodiment 7 magnetic levitation integral assembling type track beam curve segment structure
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated with reference to FIG. 11. The structure is formed by matching a curved closed beam 52 for a curved line, a curved track beam 53a, a curved track beam 53b, a support 54, a pier 55, a curved track plate 56a, a curved track plate 56b, a curved guide rail 57a and a curved guide rail 57 b. The curve closed beam 52 is erected on a pier 55 through a support 54 after being prefabricated, the curve track beam 53a is assembled in the curve closed beam 52 after being prefabricated, the curve track beam 53b is assembled in the curve closed beam 52 after being prefabricated, the curve track plate 56a is laid on the curve track beam 53a through a cast-in-place concrete cushion 59a, the curve track plate 56b is laid on the curve track beam 53b through a cast-in-place concrete cushion 59b, the curve track 57a is connected with the curve track plate 56a through a fastener 58a, and the curve track 57b is connected with the curve track plate 56b through a fastener 58 b.
Embodiment 8 magnetic levitation non-integral assembling type track beam curve segment structure
A single-box double-chamber overhead magnetic suspension traffic structure with closed web holes based on the patent is demonstrated by combining with figure 6. The structure is formed by matching a curved closed beam 60a, a curved closed beam 60b, a curved track beam 61a, a curved track beam 61b, a support 62a, a support 62b, a pier 63, a curved track plate 64a, a curved track plate 64b, a curved guide rail 65a and a curved guide rail 65b which are used for a curved line. The curve closed beam 60a is erected on a pier 63 through a support 62a after being prefabricated, the curve closed beam 60b is erected on the pier 63 through a support 62b after being prefabricated, the curve closed beam 60a and the curve closed beam 60b are connected through a wet joint 67, the curve track beam 61a is assembled on the curve closed beam 60a after being prefabricated, the curve track beam 61b is assembled on the curve closed beam 60b after being prefabricated, the curve track plate 64a is laid on the curve track beam 61a through a concrete cushion 68a poured in place, the curve track plate 64b is laid on the curve track beam 61b through a concrete cushion 68b poured in place, the curve track 65a is connected with the curve track plate 64a through a fastener 66a, and the curve track 65b is connected with the curve track plate 64b through a fastener 66 b.
The above-mentioned specific implementation methods are illustrative of the objects, technical solutions and advantageous effects of the present patent. It should be emphasized that the above-described embodiments are merely examples of the present patent application and are not intended to limit the scope of the patent application. Any modification, equivalent replacement or improvement made within the spirit and principle of this patent shall be included in the protection scope of this patent.
Claims (5)
1. The utility model provides a single case double chamber overhead magnetic levitation traffic structure of web obturator, includes overhead pier, track roof beam, track board and guide rail, its characterized in that: a single-box double-chamber elevated magnetic suspension traffic structure with a closed web plate is formed by adopting a closed beam, an elevated pier, a track beam, a track plate and a guide rail; the closed beam is connected with the viaduct pier through a support, the track beam is connected with the track plate through a cast-in-place concrete cushion layer, and the guide rail is connected with the track plate through a fastener.
2. The single-box double-chamber overhead magnetic levitation transportation structure with the closed web plates as claimed in claim 1, wherein: the single-box double-chamber overhead magnetic suspension traffic structure with the closed web plates is a single closed beam structure or a structure formed by assembling two closed beams.
3. The single-box double-chamber overhead magnetic levitation transportation structure with the web closed cells as claimed in claim 1 or claim 2, wherein: the closed beam is a concrete box body which is integrally prefabricated, and the top plate of the closed beam is arc-shaped.
4. The single-box double-chamber overhead magnetic levitation transportation structure with the closed web plates as claimed in claim 1, wherein: the plane linear structure of the closed beam is a linear structure or a curve linear structure.
5. The single-box double-chamber overhead magnetic levitation transportation structure with the closed web plates as claimed in claim 1, wherein: the track beam positioned in the closed beam is a structure which is poured together with the closed beam at the same time or a prefabricated assembly structure which is poured with the closed beam at different times.
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| CN201821253631.4U CN209989647U (en) | 2018-08-06 | 2018-08-06 | Single-box double-chamber overhead magnetic suspension traffic structure with closed web plates |
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