CN111155363A - Floating unit plate - Google Patents
Floating unit plate Download PDFInfo
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- CN111155363A CN111155363A CN202010065441.5A CN202010065441A CN111155363A CN 111155363 A CN111155363 A CN 111155363A CN 202010065441 A CN202010065441 A CN 202010065441A CN 111155363 A CN111155363 A CN 111155363A
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- 238000009434 installation Methods 0.000 claims description 50
- 238000005452 bending Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 13
- 238000010276 construction Methods 0.000 description 12
- 230000009467 reduction Effects 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2201/00—Fastening or restraining methods
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a floating unit plate, comprising: the floating plate comprises a plurality of floating plate unit blocks and a connecting assembly, wherein the floating plate unit blocks are sequentially arranged along the extending direction of the track line and are connected in a splicing manner, and the connecting assembly is used for connecting the floating plate unit blocks to form a floating unit plate. The floating plate unit block is provided with a first splicing surface and a second splicing surface which are arranged oppositely, the first splicing surface and the second splicing surface are arranged along the width direction of the floating plate unit block, the first splicing surface and two adjacent side surfaces are obliquely arranged to form an inclined plane, and the second splicing surface and the two adjacent side surfaces are perpendicularly arranged to form a vertical plane or the second splicing surface and the first splicing surface are symmetrically arranged along the centerline plane of the floating plate unit block. The first splicing surfaces of the floating plate unit blocks are spliced and connected with the first splicing surfaces of the adjacent floating plate unit blocks to form a linear floating unit plate; and/or the first splicing surfaces of the floating plate unit blocks and the second splicing surfaces of the adjacent floating plate unit blocks are spliced and connected to form the curved floating unit plate.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a floating unit plate.
Background
The floating slab track bed is the most effective structure for reducing the vibration and noise of the rail transit at present, and has the remarkable advantages of good vibration reduction effect, low later-stage operation and maintenance cost, long service life and the like compared with other vibration reduction rails. The floating slab track bed generally adopts a construction mode of cast-in-place or prefabricated installation, but the cast-in-place floating slab has complex structure, the quality of cast-in-place construction is not easy to guarantee, and the problems of poor appearance, exposed reinforcing steel bars, surface cracking, large deviation of geometric dimension precision of a track and the like are easy to occur.
Although the common prefabricated floating slab is suitable for mass production in factories and has high construction speed, the section of a tunnel construction site is small and is limited by construction space and transportation and hoisting, the length of a single block of the common prefabricated floating slab is generally 3.6-8 m and cannot reach 25-30 m of the cast-in-place floating slab, and the shorter length and the smaller mass reduce the vibration reduction effect of the common prefabricated floating slab. Due to the limitation of the length of the plate body, the floating plate track structure formed by common prefabricated floating plates inevitably has discontinuous conditions at the plate ends of the adjacent floating plates, the discontinuous conditions are more, the vibration response generated when a train passes through the plate ends of the floating plates is much larger than the vibration response generated when the train passes through the plates, the driving safety is reduced, and the service life is reduced due to the poor stress condition of the track parts at the plate ends; although the shear hinges are adopted to connect adjacent common prefabricated floating plates in the actual engineering, the problem of influencing the stable structure and safe use of the track of the floating plate caused by the discontinuity of the plate ends still cannot be effectively solved.
Disclosure of Invention
The invention provides a floating unit plate, which aims to solve the technical problems of construction space and transportation and hoisting limitation, poor driving safety, poor vibration damping effect and high maintenance cost of the conventional common prefabricated plate.
The technical scheme adopted by the invention is as follows:
a floating cell plate, comprising: the floating plate comprises a plurality of floating plate unit blocks and a connecting assembly, wherein the floating plate unit blocks are sequentially arranged along the extension direction of a track line and are spliced and connected with each other, and the connecting assembly is used for connecting the floating plate unit blocks to form a floating unit plate; the floating plate unit block is provided with a first splicing surface and a second splicing surface which are oppositely arranged, the first splicing surface and the second splicing surface are arranged along the width direction of the floating plate unit block, the first splicing surface and two adjacent side surfaces are obliquely arranged to form an inclined surface, the second splicing surface and two adjacent side surfaces are vertically arranged to form a vertical surface, or the second splicing surface and the first splicing surface are symmetrically arranged along the centerline plane of the floating plate unit block; the first splicing surfaces of the floating plate unit blocks are spliced and connected with the first splicing surfaces of the adjacent floating plate unit blocks to form a linear floating unit plate extending along a straight line; and/or the first splicing surfaces of the floating plate unit blocks and the second splicing surfaces of the adjacent floating plate unit blocks are spliced and connected to form the curved floating unit plate with the bending curvature.
Furthermore, the floating plate unit block comprises a prefabricated plate body and a rail bearing table group; the first splicing surface and the second splicing surface are oppositely arranged on the prefabricated plate body, the outer end surface and the inner end surface which are oppositely arranged are respectively connected between the first splicing surface and the second splicing surface, the first splicing surface, the outer end surface, the second splicing surface and the inner end surface form the peripheral side surfaces of the prefabricated plate body, and the prefabricated plate body further comprises an upper surface used as a supporting platform; the rail bearing table group is connected to the upper surface of the prefabricated plate body and used for installing the rail part.
Furthermore, the section of the prefabricated plate body along the horizontal direction is in a right trapezoid shape; the first splicing surface forms the inclined edge of a right trapezoid; the second splicing surfaces form right-angle sides of a right-angle trapezoid; the outer end surface and the inner end surface respectively form the upper top edge and the lower bottom edge of the right trapezoid.
Furthermore, the section of the prefabricated plate body along the horizontal direction is in an isosceles trapezoid shape; the first splicing surface and the second splicing surface respectively form two equal waist edges of an isosceles trapezoid; the inner end surface forms the upper top edge of the isosceles trapezoid; the outer end face forms the lower bottom edge of the isosceles trapezoid.
Further, the upper surface of the prefabricated plate body is a parallel surface horizontally arranged, or the upper surface is an inclined surface gradually inclined towards the upper side from the inner end surface to the outer end surface.
Furthermore, an installation reserved hole group which is perpendicular to the upper surface and penetrates through the prefabricated plate body is further arranged on the upper surface of the prefabricated plate body, and the installation reserved hole group is used for installing the vibration isolator.
Furthermore, the rail bearing table groups are in one group and are arranged at the longitudinal middle position of the prefabricated plate body, each rail bearing table group comprises two rail bearing tables, and the two rail bearing tables are arranged at intervals along the transverse direction of the prefabricated plate body; the number of the installation reserved hole groups is one group, each installation reserved hole group comprises two installation reserved holes, and the two installation reserved holes are respectively arranged at two ends of the rail bearing platform group and are respectively close to the inner end face and the outer end face.
Furthermore, the number of the rail bearing table groups is multiple, the multiple rail bearing table groups are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body, each rail bearing table group comprises two rail bearing tables, and the two rail bearing tables are arranged along the transverse interval of the prefabricated plate body; the mounting reserved hole groups and the rail bearing table groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes, and the two mounting reserved holes are respectively arranged at two ends of the correspondingly arranged rail bearing table group and are respectively close to the inner end face and the outer end face; or the rail bearing table groups are even groups, the number of the installation reserved hole groups is half of that of the rail bearing table groups, the installation reserved hole groups are arranged between every two adjacent rail bearing table groups, each installation reserved hole group comprises two installation reserved holes, the two installation reserved holes are arranged at intervals along the transverse direction of the prefabricated plate body, and the two installation reserved holes are respectively close to the inner end face and the outer end face which are correspondingly arranged.
Furthermore, the connecting assembly also comprises an upper shear hinge, each vertex angle of the upper surface of the prefabricated slab body is respectively provided with a first concave shear hinge mounting hole, and the first shear hinge mounting hole is used for being matched with the first shear hinge mounting hole on the adjacent prefabricated slab body to mount the upper shear hinge; and/or the connecting assembly further comprises side-mounted shear hinges, wherein concave second shear hinge mounting holes are formed in two ends of the inner end face and the outer end face of each prefabricated plate body respectively, and the second shear hinge mounting holes are used for being matched with second shear hinge mounting holes in adjacent prefabricated plate bodies to mount the side-mounted shear hinges.
Further, the connecting assembly further comprises a connecting rod group; assembly preformed holes are respectively formed in the two ends of the first splicing surface, the assembly preformed holes are perpendicular to the first splicing surface and penetrate through the prefabricated plate body to be connected with the second splicing surface, and the assembly preformed holes are used for the corresponding connecting rod groups to penetrate through; the outer end face is also provided with an inwards concave limiting device preformed hole which is used for being abutted against a limiting device arranged on the outer side of the floating unit plate and used for resisting the transverse vibration response of the floating unit plate in a curve section caused by the centrifugal force generated by the running of the train.
The invention has the following beneficial effects:
compared with the common prefabricated floating plate in the prior art, the floating unit plate is formed by sequentially arranging and splicing a plurality of floating plate unit blocks along the extension direction of a track line through the connecting assembly, so that on one hand, compared with the common prefabricated floating plate, the floating plate unit blocks with smaller volume and weight are not limited by construction space and transportation and hoisting, and can be transported and hoisted more conveniently and more labor-saving; on the other hand, the floating unit plate is formed by sequentially splicing and connecting a plurality of floating plate unit blocks, so that compared with the existing common prefabricated floating plate, the prefabricated floating unit plate is generally 3.6-8 m, the prefabricated floating unit plate can be connected to form the floating unit plate with any length according to the length of an actual track line, the use flexibility is very high, and the prefabricated floating unit plate is formed by sequentially splicing and connecting a plurality of floating plate unit blocks, so that a connecting gap is not formed between the adjacent floating plate unit blocks, the traveling safety is high, and the vibration reduction effect is good; when the floating unit plates are connected to form the floating slab track bed section, compared with the existing common prefabricated floating slab connected to form the floating slab track bed section, the floating unit plates can be connected by the floating slab unit blocks to form any length, so that the discontinuous occurrence frequency of the medium plate end of the floating slab track bed section can be greatly reduced, the driving safety and the vibration reduction effect are further greatly improved, the service life of a track structure is prolonged, the required maintenance frequency and the maintenance difficulty are reduced, and the maintenance efficiency and the use efficiency of the floating slab track bed section are improved; the floating unit plate can be formed by connecting the floating plate unit blocks to form a linear floating unit plate extending along a straight line or a curved floating unit plate with bending curvature, has high use flexibility, and is suitable for various construction sites and construction environments.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an expanded view of a first prefabricated panel body of a preferred embodiment of the present invention having a right trapezoid cross-section;
FIG. 2 is an expanded view of a second prefabricated panel body of a preferred embodiment of the present invention having a right trapezoid cross section;
FIG. 3 is a straight floating unit plate formed by connecting prefabricated plate bodies with right trapezoid cross sections;
FIG. 4 is a curved floating unit plate formed by connecting prefabricated plate bodies with right-angled trapezoids in section;
FIG. 5 is a schematic view of the spatial structure of a third prefabricated panel body with a right trapezoid cross section;
fig. 6 is a schematic spatial structure diagram of a fourth prefabricated plate body with a right trapezoid cross section;
fig. 7 is a schematic spatial structure diagram of a fifth prefabricated plate body with a right-angled trapezoid cross section;
FIG. 8 is an expanded view of a first prefabricated panel body of a preferred embodiment of the present invention, having an isosceles trapezoid cross-section;
FIG. 9 is an expanded view of a second panel body of the preferred embodiment of the present invention having an isosceles trapezoid cross-section;
FIG. 10 is a linear floating unit plate formed by connecting prefabricated plate bodies with isosceles trapezoid cross sections;
FIG. 11 is a curved floating unit plate formed by connecting prefabricated plate bodies with isosceles trapezoid cross sections;
fig. 12 is a schematic view of the spatial structure of a third prefabricated plate body with an isosceles trapezoid cross section.
Description of the figures
10. A floating plate unit block; 101. a first splicing surface; 102. a second splicing surface; 103. an outer end face; 104. an inner end surface; 105. an upper surface; 107. mounting a preformed hole; 108. a first shear hinge mounting hole; 109. a second shear hinge mounting hole; 110. assembling the prepared hole; 111. reserving a hole in the limiting device; 11. prefabricating a plate body; 12. a rail bearing platform; 20. a connecting assembly; 21. an overhead shear hinge; 22. side shear hinge.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
Referring to fig. 1 to 12, a preferred embodiment of the present invention provides a floating unit plate including: the floating plate comprises a plurality of floating plate unit blocks 10 and a connecting assembly 20, wherein the floating plate unit blocks 10 are sequentially arranged along the extending direction of a track and are connected in a splicing mode, and the connecting assembly 20 is used for connecting the floating plate unit blocks 10 to form a floating unit plate. The floating plate unit block 10 is provided with a first splicing surface 101 and a second splicing surface 102 which are oppositely arranged, the first splicing surface 101 and the second splicing surface 102 are arranged along the width direction of the floating plate unit block, the first splicing surface 101 and two adjacent side surfaces are obliquely arranged to form an inclined plane, and the second splicing surface 102 and the two adjacent side surfaces are perpendicularly arranged to form a vertical plane or the second splicing surface 102 and the first splicing surface 101 are symmetrically arranged along the centerline plane of the floating plate unit block 10. The first splicing surfaces 101 of the floating plate unit blocks 10 are spliced and connected with the first splicing surfaces 101 of the adjacent floating plate unit blocks 10 to form a linear floating unit plate extending along a straight line; and/or the first splicing surface 101 of the floating plate unit block 10 is spliced and connected with the second splicing surface 102 of the adjacent floating plate unit block 10 to form the curved floating unit plate with the bending curvature.
Compared with the common prefabricated floating plate in the prior art, the floating unit plate is formed by connecting a plurality of floating plate unit blocks 10 which are sequentially distributed along the extension direction of a track and spliced and connected through a connecting assembly 20, so that on one hand, compared with the common prefabricated floating plate, the floating plate unit blocks 10 with smaller volume and weight are not limited by construction space and transportation hoisting, and can be transported and hoisted more conveniently and more laborsavingly; on the other hand, the floating unit plate is formed by sequentially splicing and connecting a plurality of floating plate unit blocks 10, so that compared with the existing common prefabricated floating plate, the prefabricated floating plate is generally 3.6-8 m, the prefabricated floating plate can be connected to form the floating unit plate with any length according to the length of an actual track line, the flexibility in use is very high, and the prefabricated floating plate is formed by sequentially splicing and connecting a plurality of floating plate unit blocks 10, so that a connecting gap is not formed between the adjacent floating plate unit blocks 10, the traveling safety is high, and the vibration reduction effect is good; when the floating unit plates are connected to form the floating slab track bed section, compared with the existing common prefabricated floating slab connected to form the floating slab track bed section, the floating unit plates can be connected by the floating slab unit blocks 10 to form any length, so that the discontinuous occurrence frequency of the medium plate end of the floating slab track bed section can be greatly reduced, the driving safety and the vibration reduction effect are further greatly improved, the service life of a track structure is prolonged, the required maintenance frequency and the maintenance difficulty are reduced, and the maintenance efficiency and the use efficiency of the floating slab track bed section are improved; as shown in fig. 3, 4, 10 and 11, the floating unit plates of the present invention may be connected by the floating plate unit blocks 10 to form a linear type floating unit plate extending along a straight line or a curved type floating unit plate having a curvature, and the floating unit plates have high flexibility of use and are applicable to various construction sites and construction environments.
Alternatively, as shown in fig. 3 to 7 and 10 to 12, the floating plate unit block 10 includes a prefabricated plate body 11 and a rail set. The first splicing surface 101 and the second splicing surface 102 are oppositely arranged on the prefabricated plate body 11, an outer end surface 103 and an inner end surface 104 which are oppositely arranged are respectively connected between the first splicing surface 101 and the second splicing surface 102, the first splicing surface 101, the outer end surface 103, the second splicing surface 102 and the inner end surface 104 form the peripheral side surfaces of the prefabricated plate body 11, and the prefabricated plate body 11 further comprises an upper surface 105 which is used as a supporting platform. A set of track blocks for mounting track components is attached to the upper surface 105 of the prefabricated panel body 11. Specifically, the prefabricated slab body 11 has a plurality of rows of reinforcing cages therein for supporting an upper load and resisting stress generated by shrinkage deformation of concrete due to temperature change. The rail bearing table group is used for installing rail parts such as fasteners, steel rails and the like.
Alternatively, in the first embodiment of the present invention, as shown in fig. 1 and 2, the prefabricated plate body 11 has a right-angled trapezoidal cross section in the horizontal direction. The first splicing face 101 constitutes the hypotenuse of the right trapezoid. The second splicing surface 102 forms the legs of a right-angled trapezoid. The outer end surface 103 and the inner end surface 104 form the upper top and lower bottom edges of a right trapezoid, respectively. In the first embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated board body 11 is spliced with the first splicing surface 101 of the second prefabricated board body 11, a linear floating unit plate extending along a straight line can be formed, as shown in fig. 3, and the end of the linear floating unit plate can be a right angle, so that the floating unit plate is connected with the adjacent floating unit plate in an assembling manner; in the first embodiment of the present invention, when the first splicing surface 101 of the first prefabricated plate body 11 and the second splicing surface 102 of the second prefabricated plate body 11 are spliced together, a curved floating unit plate with a curvature may be formed, as shown in fig. 4, by setting an oblique crossing angle between the first splicing surface 101 and the two adjacent side surfaces, the curvature of the curved floating unit plate may be changed to adapt to a floating slab track bed section with any turning radius.
In the first embodiment of the present invention, for a floating unit slab in a curved section, when the height of the track foundation for installing and supporting the floating unit slab on the outer side of the curve is not enough, the prefabricated slab body 11 may be further optimally designed to meet the requirement of the height, that is, the upper surface 105 of the prefabricated slab body 11 is a horizontally arranged parallel surface, or the upper surface 105 is an inclined surface gradually inclined towards the upper side from the inner end surface 104 to the outer end surface 103, as shown in fig. 2, the requirement of any curved height can be met by flexibly changing the inclination of the upper surface 105 of the prefabricated slab body 11 in the transverse direction, and the adjustment is flexible and reliable.
Further, in the first embodiment of the present invention, the prefabricated plate body 11 is further provided with a set of mounting holes perpendicular to the upper surface 105 and penetrating through the prefabricated plate body 11 on the upper surface 105. The reserved hole group is used for installing a vibration isolator for vibration isolation and noise reduction.
Preferably, in the second embodiment of the first embodiment of the present invention, as shown in fig. 5, the rail bearing platform group is a group and is disposed at a middle position in the longitudinal direction of the precast slab body 11, the rail bearing platform group includes two rail bearing platforms 12, and the two rail bearing platforms 12 are disposed at intervals along the transverse direction of the precast slab body 11. The number of the installation reserved hole groups is one group, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are respectively arranged at two ends of each rail bearing platform group and are respectively close to the inner end face 104 and the outer end face 103, namely the two installation reserved holes 107 are respectively arranged at the outer sides of the two rail bearing platforms 12 of the corresponding rail bearing platform group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is shorter along the longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively one group, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and the driving stability are enhanced, and the vibration damping effect and the service life of the prefabricated plate body are improved. Further, for the prefabricated unit plate formed by the prefabricated plate unit blocks, the number and the arrangement of the groups of the installation reserved holes meet the following requirements: after assembly, the rail bearing platforms and the mounting preformed holes in the longitudinal direction of the rail are uniformly and equidistantly arranged.
Preferably, in a third specific embodiment of the first embodiment of the present invention, as shown in fig. 6, the number of the rail bearing table sets is multiple, the multiple rail bearing table sets are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body 11, each rail bearing table set includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged along the transverse direction of the prefabricated plate body 11 at intervals. The mounting reserved hole groups and the rail bearing table groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes 107, the two mounting reserved holes 107 are respectively arranged at two ends of the corresponding rail bearing table group and are respectively arranged close to the inner end face 104 and the outer end face 103, namely the two mounting reserved holes 107 are respectively arranged at the outer sides of the two rail bearing tables 12 of the corresponding rail bearing table group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed and the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.
Preferably, in a fourth embodiment of the first embodiment of the present invention, as shown in fig. 7, the number of the rail bearing table sets is multiple and even, the multiple rail bearing table sets are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body 11, each rail bearing table set includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated plate body 11. The number of the installation reserved hole groups is half of the number of the rail bearing table groups, the installation reserved hole groups are arranged between every two adjacent rail bearing table groups, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are arranged at intervals along the transverse direction of the prefabricated plate body 11, and the two installation reserved holes 107 are respectively close to the inner end face 104 and the outer end face 103 which are correspondingly arranged. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups and even numbers, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced. Compared with the fourth embodiment of the first embodiment of the present invention, when the number of sets of track-bearing platform sets is the same, the number of sets of installation reserved hole sets in the third embodiment is greater than that in the fourth embodiment, so as to form an encrypted slab, and the application environment is on the transition section from the common ballastless track to the floating slab track.
Alternatively, in a second embodiment of the present invention, as shown in fig. 8 and 9, the section of the prefabricated plate body 11 in the horizontal direction is in the shape of an isosceles trapezoid. The first splicing surface 101 and the second splicing surface 102 respectively form two equal waist edges of an isosceles trapezoid. The inner end surface 104 forms the upper top edge of an isosceles trapezoid. The outer end surface 103 constitutes the lower base of the isosceles trapezoid. In the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated board body 11 is spliced with the first splicing surface 101 of the second prefabricated board body 11, a linear floating unit plate extending along a straight line can be formed, as shown in fig. 10, and the end of the linear floating unit plate can be a right angle, so that the floating unit plate is connected with the adjacent floating unit plate in an assembling manner; in the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated plate body 11 is spliced and connected with the second splicing surface 102 of the second prefabricated plate body 11, a curved floating unit plate with a bending curvature may be formed, as shown in fig. 11, by setting an included angle between the first splicing surface 101 and the floating unit plate in the transverse direction, the bending radian of the curved floating unit plate may be changed to adapt to a floating plate way bed section with any turning radius.
In the first embodiment of the second embodiment of the present invention, for a floating unit slab in a curved section, when the height of the track foundation for installing and supporting the floating unit slab outside the curve is not enough, the prefabricated slab 11 may be further optimally designed to meet the requirement of the height, that is, the upper surface 105 of the prefabricated slab 11 is a horizontally arranged parallel surface, or the upper surface 105 is an inclined surface gradually inclined towards the upper side from the inner end surface 104 to the outer end surface 103, as shown in fig. 2, the requirement of any curved height can be met by flexibly changing the inclination of the upper surface 105 of the prefabricated slab 11 in the transverse direction, and the adjustment is flexible and reliable.
Furthermore, in the second embodiment of the present invention, the prefabricated plate body 11 is further provided with a set of mounting holes formed on the upper surface 105 thereof and penetrating through the prefabricated plate body 11 and perpendicular to the upper surface 105. The reserved hole group is used for installing a vibration isolator for vibration isolation and noise reduction.
Preferably, in the second embodiment of the present invention, not shown, the number of the rail bearing platform sets is one, and the rail bearing platform sets are arranged at the longitudinal middle position of the precast slab body 11, each rail bearing platform set includes two rail bearing platforms 12, and the two rail bearing platforms 12 are arranged at intervals along the transverse direction of the precast slab body 11. The number of the installation reserved hole groups is one group, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are respectively arranged at two ends of each rail bearing platform group and are respectively close to the inner end face 104 and the outer end face 103, namely the two installation reserved holes 107 are respectively arranged at the outer sides of the two rail bearing platforms 12 of the corresponding rail bearing platform group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is short along the longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively one group, and the group number of the rail bearing table groups, the number of each group, the group number of the mounting reserved hole groups and the number of each group are all used for forming uniform and symmetrical structural arrangement on the prefabricated plate body 11 as far as possible, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are further enhanced, and the vibration damping effect is improved.
Preferably, in a third specific embodiment of the second embodiment of the present invention, as shown in fig. 12, the number of the rail bearing table sets is multiple, the multiple rail bearing table sets are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body 11, each rail bearing table set includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged along the transverse direction of the prefabricated plate body 11 at intervals. The mounting reserved hole groups and the rail bearing table groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes 107, the two mounting reserved holes 107 are respectively arranged at two ends of the corresponding rail bearing table group and are respectively close to the inner end face 104 and the outer end face 103, namely the two mounting reserved holes 107 are respectively arranged at the outer sides of the two rail bearing tables 12 of the corresponding rail bearing table group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed and the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.
Preferably, in a fourth embodiment of the second embodiment of the present invention, not shown in the drawings, the number of the rail bearing table sets is multiple and even, the multiple rail bearing table sets are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body 11, each rail bearing table set includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated plate body 11. The number of the installation reserved hole groups is half of the number of the rail bearing table groups, the installation reserved hole groups are arranged between every two adjacent rail bearing table groups, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are arranged at intervals along the transverse direction of the prefabricated plate body 11, and the two installation reserved holes 107 are respectively close to the inner end face 104 and the outer end face 103 which are correspondingly arranged. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups and even numbers, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced. Compared with the fourth embodiment of the second embodiment of the present invention, when the number of sets of track-supporting platform sets is the same, the number of sets of installation reserved holes in the third embodiment is greater than that in the fourth embodiment, so as to form an encrypted plate type, and enhance the rigidity of the track to improve the driving safety and stability.
Alternatively, in the first and second embodiments of the present invention, as shown in fig. 3-7 and 10-12, the connecting assembly 20 further includes an overhead shear hinge 21. Each top corner of the upper surface 105 of the prefabricated slab body 11 is provided with a concave first shear hinge mounting hole 108, and the first shear hinge mounting hole 108 is used for being matched with the first shear hinge mounting hole 108 on the adjacent prefabricated slab body 11 to mount an overhead shear hinge. And/or the connecting assembly 20 further comprises a side shear hinge 22, wherein both ends of the inner end surface 104 and the outer end surface 103 of the prefabricated plate body 11 are respectively provided with a second concave shear hinge mounting hole 109, and the second shear hinge mounting hole 109 is used for being matched with the second shear hinge mounting hole 109 on the adjacent prefabricated plate body 11 to mount the side shear hinge 22. The adjacent prefabricated plate bodies 11 are connected through the overhead shear hinges 21 and/or the side shear hinges 22, so that a plurality of floating plate unit blocks 10 can be detachably connected to form the floating unit plate, and the connection mode is simple and easy to implement. Specifically, the overhead shear hinge 21 and the side shear hinge 22 are conventional shear hinges commonly used in the engineering field.
Further, in the first and second embodiments of the present invention, as shown in fig. 5-7 and 12, the connecting assembly 20 further includes a connecting rod set (not shown). The two ends of the first splicing surface 101 are respectively provided with an assembly prepared hole 110, the assembly prepared hole 110 is perpendicular to the first splicing surface 101 and penetrates through the prefabricated plate body 11 to be connected with the second splicing surface 102, and the assembly prepared hole 110 is used for the corresponding connecting rod set to penetrate through. The connecting rod sets are sequentially arranged in the assembly preformed holes 110 of the floating plate unit blocks 10 in a penetrating mode, so that the floating plate unit blocks 10 are detachably connected to form the floating unit plates, the connection strength between the floating plate unit blocks 10 is further enhanced, and the stability of the floating unit plate structure and the support is further enhanced.
Preferably, in the first embodiment and the second embodiment of the present invention, as shown in fig. 5 to 7 and 12, the outer end surface 103 is further provided with an inward concave limiting device preformed hole 111, the limiting device preformed hole 111 is used for abutting against a limiting device (not shown) arranged on the outer side of the floating unit plate, so as to resist the transverse vibration response of the floating unit plate in the curve section generated by the centrifugal force generated by the train operation, so as to improve the driving safety of the floating unit plate in the curve section, further, in order to make the curve track structure more stable, the inner end surface is also provided with the limiting device preformed hole 111, and the limiting device preformed hole 111 on the inner end surface abuts against the limiting device arranged on the inner side.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A floating cell plate, comprising:
the floating plate comprises a plurality of floating plate unit blocks (10) and a connecting assembly (20), wherein the floating plate unit blocks (10) are sequentially arranged along the extension direction of a track and are spliced and connected, and the connecting assembly (20) is used for connecting the floating plate unit blocks (10) to form the floating plate;
the floating plate unit block (10) is provided with a first splicing surface (101) and a second splicing surface (102) which are oppositely arranged, the first splicing surface (101) and the second splicing surface (102) are arranged along the width direction of the floating plate unit, the first splicing surface (101) and two adjacent side surfaces are obliquely arranged to form an inclined surface, the second splicing surface (102) and the two adjacent side surfaces are vertically arranged to form a vertical surface, or the second splicing surface (102) and the first splicing surface (101) are symmetrically arranged along the centerline plane of the floating plate unit block (10);
the first splicing surfaces (101) of the floating plate unit blocks (10) are spliced and connected with the first splicing surfaces (101) of the adjacent floating plate unit blocks (10) to form a linear floating unit plate extending along a straight line; and/or
The first splicing surfaces (101) of the floating plate unit blocks (10) are spliced and connected with the second splicing surfaces (102) of the adjacent floating plate unit blocks (10) to form the curved floating unit plate with bending curvature.
2. The floating cell plate of claim 1,
the floating plate unit block (10) comprises a prefabricated plate body (11) and a rail bearing table group;
the first splicing surface (101) and the second splicing surface (102) are oppositely arranged on the prefabricated plate body (11), an outer end surface (103) and an inner end surface (104) which are oppositely arranged are respectively connected between the first splicing surface (101) and the second splicing surface (102), the first splicing surface (101), the outer end surface (103), the second splicing surface (102) and the inner end surface (104) form the peripheral side surfaces of the prefabricated plate body (11), and the prefabricated plate body (11) further comprises an upper surface (105) which is used as a supporting platform;
the rail bearing table set is connected to the upper surface (105) of the prefabricated plate body (11) and used for installing rail parts.
3. The floating cell plate of claim 2,
the section of the prefabricated plate body (11) along the horizontal direction is in a right trapezoid shape;
the first splicing surface (101) forms the hypotenuse of the right trapezoid;
the second splicing surfaces (102) form right-angle sides of the right-angle trapezoid;
the outer end surface (103) and the inner end surface (104) respectively form the upper top edge and the lower bottom edge of the right trapezoid.
4. The floating cell plate of claim 2,
the section of the prefabricated plate body (11) along the horizontal direction is in an isosceles trapezoid shape;
the first splicing surface (101) and the second splicing surface (102) respectively form two equal waist edges of the isosceles trapezoid;
the inner end surface (104) forms the upper top edge of the isosceles trapezoid;
the outer end face (103) forms the lower base of the isosceles trapezoid.
5. The floating cell plate of claim 2,
the upper surface (105) of the prefabricated plate body (11) is a parallel surface which is horizontally arranged, or the upper surface (105) is an inclined surface which is gradually inclined towards the upper side from the direction from the inner end surface (104) to the direction from the outer end surface (103).
6. The floating cell plate of claim 2,
still be equipped with the perpendicular on the upper surface (105) of prefabricated plate body (11) upper surface (105) just run through the punch combination is reserved in the installation of prefabricated plate body (11), the punch combination is reserved in the installation and is used for installing the isolator.
7. The floating cell plate of claim 6,
the track bearing table groups are one group and are arranged in the longitudinal middle position of the prefabricated plate body (11), each track bearing table group comprises two track bearing tables (12), and the two track bearing tables (12) are arranged at intervals along the transverse direction of the prefabricated plate body (11);
the quantity of installation preformed hole group is a set of, the installation preformed hole group includes two installation preformed holes (107), two installation preformed holes (107) are located separately the both ends of support rail platform group just are close to respectively inner terminal surface (104) with outer terminal surface (103) are laid.
8. The floating cell plate of claim 6,
the number of the rail bearing table groups is multiple, the multiple rail bearing table groups are sequentially arranged at intervals along the longitudinal direction of the prefabricated plate body (11), each rail bearing table group comprises two rail bearing tables (12), and the two rail bearing tables (12) are arranged along the transverse distance of the prefabricated plate body (11);
the mounting reserved hole groups and the rail bearing platform groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes (107), and the two mounting reserved holes (107) are respectively arranged at two ends of the rail bearing platform group which is correspondingly arranged and are respectively close to the inner end surface (104) and the outer end surface (103); or
The track supporting table group is an even group, the number of the installation reserved hole groups is half of that of the track supporting table group, the installation reserved hole groups are respectively arranged between every two adjacent groups of the track supporting table groups, each installation reserved hole group comprises two installation reserved holes (107), the two installation reserved holes (107) are arranged along the transverse interval of the prefabricated plate body (11), and the two installation reserved holes (107) are respectively close to the inner end face (104) and the outer end face (103) which are correspondingly arranged.
9. The floating cell plate of claim 2,
the connecting assembly (20) further comprises an overhead shear hinge (21), each vertex angle of the upper surface (105) of the prefabricated plate body (11) is respectively provided with a first concave shear hinge mounting hole (108), and the first shear hinge mounting hole (108) is used for being matched with the first shear hinge mounting hole (108) on the adjacent prefabricated plate body (11) to mount the overhead shear hinge; and/or
The connecting assembly (20) further comprises side shear hinges (22), two ends of the inner end face (104) and the outer end face (103) of the prefabricated plate body (11) are respectively provided with a second concave shear hinge mounting hole (109), and the second shear hinge mounting hole (109) is used for being matched with the second shear hinge mounting hole (109) on the adjacent prefabricated plate body (11) to mount the side shear hinges (22).
10. The floating cell plate of claim 2,
the connection assembly (20) further comprises a set of connection rods;
assembly preformed holes (110) are respectively formed in two ends of the first splicing surface (101), the assembly preformed holes (110) are perpendicular to the first splicing surface (101) and penetrate through the prefabricated plate body (11) to be connected with the second splicing surface (102), and the assembly preformed holes (110) are used for the correspondingly arranged connecting rod groups to penetrate through;
the outer end face (103) is further provided with an inwards concave limiting device preformed hole (111), and the limiting device preformed hole (111) is used for being abutted to a limiting device arranged on the outer side of the floating unit plate and used for resisting the transverse vibration response of the floating unit plate in a curve section due to the centrifugal force generated by the running of a train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065441.5A CN111155363B (en) | 2020-01-20 | 2020-01-20 | Floating unit plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065441.5A CN111155363B (en) | 2020-01-20 | 2020-01-20 | Floating unit plate |
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| Publication Number | Publication Date |
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| CN111155363A true CN111155363A (en) | 2020-05-15 |
| CN111155363B CN111155363B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010065441.5A Active CN111155363B (en) | 2020-01-20 | 2020-01-20 | Floating unit plate |
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| CN (1) | CN111155363B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112523012A (en) * | 2020-12-29 | 2021-03-19 | 北京九州一轨环境科技股份有限公司 | Prefabricated vibration-damping ballast bed |
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| JPH07216802A (en) * | 1994-01-28 | 1995-08-15 | Toshiba Corp | Ground coil fixing method |
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| CN111155363B (en) | 2024-04-12 |
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