Shock absorption and isolation floating slab track
阅读说明:本技术 减隔震浮置板轨道 (Shock absorption and isolation floating slab track ) 是由 周锐 汪小渝 任伟新 杜彦良 于 2020-06-04 设计创作,主要内容包括:本发明涉及一种减隔震浮置板轨道,包括:道床;轨道板,设于道床;减振件,设于道床及轨道板之间,减振件包括多个第一减振垫及多个第二减振垫,第一减振垫及第二减振垫的耐久性及减振性能不同,多个第一减振垫及多个第二减振垫呈阵列结构连接于轨道板外侧;钢轨,连接于轨道板;以及扣件,将钢轨扣紧于轨道板。上述减隔震浮置板轨道,使减振件分散为多个独立的减振垫以起到支撑及减隔振作用,减少减振垫的材料使用,也利于减振垫的安装、调节及更换;通过设置两种耐久性及减振性能不同的减振垫,能够合理排列组合两种减振垫以同时满足列车荷载作用下的隔振和地震荷载作用下隔震的需求。(The invention relates to a shock absorption and isolation floating slab track, which comprises: a ballast bed; the track plate is arranged on the track bed; the vibration damping piece is arranged between the track bed and the track slab and comprises a plurality of first vibration damping pads and a plurality of second vibration damping pads, the durability and the vibration damping performance of the first vibration damping pads are different from those of the second vibration damping pads, and the first vibration damping pads and the second vibration damping pads are connected to the outer side of the track slab in an array structure; a rail connected to the rail plate; and a fastener fastening the rail to the rail plate. According to the shock absorption and isolation floating slab track, the shock absorption pieces are dispersed into the plurality of independent shock absorption pads to play a role in supporting, shock absorption and isolation, the use of materials of the shock absorption pads is reduced, and the mounting, adjustment and replacement of the shock absorption pads are facilitated; through setting up two kinds of durability and the damping pad that damping performance is different, can rationally arrange the demand that makes up two kinds of damping pads in order to satisfy vibration isolation under the train load effect simultaneously and the shock insulation under the earthquake load effect.)
1. The utility model provides an subtract shock insulation floating slab track which characterized in that includes:
a ballast bed;
the track slab is arranged on the track bed;
the vibration damping piece is arranged between the ballast bed and the track slab and comprises a plurality of first vibration damping pads and a plurality of second vibration damping pads, the durability and the vibration damping performance of the first vibration damping pads are different from those of the second vibration damping pads, and the first vibration damping pads and the second vibration damping pads are connected to the outer side of the track slab in an array structure;
a rail connected to the rail plate; and
and the fastener fastens the steel rail to the rail plate.
2. The seismic isolation and reduction floating slab track according to claim 1, wherein the first and second damping pads are each in a point-like, block-like or linear configuration such that the plurality of first and second damping pads are in any one of a point-like array, a block-like array and a linear array.
3. The seismic isolation and reduction floating slab track according to claim 1, wherein the first and second damping pads are in any two of a point-like, block-like or linear structure, so that the plurality of first damping pads and the plurality of second damping pads are arranged in any two of a point-like array, a block-like array and a linear array.
4. The seismic isolation and reduction floating slab track according to claim 1, wherein the first and second damping pads are further adhered together and form an intermediate member, the intermediate member is a double-layered stacked structure, and a plurality of intermediate members are connected to the outside of the track slab in an array structure.
5. The seismic isolation and reduction floating slab track according to claim 4, wherein the track slab comprises a top surface, a bottom surface, a first side surface and a second side surface, the bottom surface, the first side surface and the second side surface are abutted to the track bed through the damping members, the intermediate members are arranged on the top surface and the bottom surface, and the first damping pad and/or the second damping pad are arranged on the first side surface and the second side surface.
6. The seismic isolation and reduction floating slab track according to claim 1, wherein the first damping pad is made of rubber, and the second damping pad is made of polyurethane.
7. The seismic isolation and reduction floating slab track according to claim 1, further comprising a first damping member, wherein the first damping member is arranged between the track slab and the track bed and/or in the track bed.
8. The seismic isolation and reduction floating slab track according to claim 1, further comprising a second damping member, wherein the second damping member is hung on the steel rail.
9. The seismic isolation and reduction floating slab track according to claim 1, further comprising a buffering assembly, wherein the track slab comprises a plurality of sub-track slabs, the sub-track slabs are arranged side by side at intervals, and the buffering assembly is arranged at a gap between two adjacent sub-track slabs.
10. The seismic isolation and reduction floating slab track according to claim 9, wherein the buffer assembly comprises a shape memory buffer pad and a third damping member, the shape memory buffer pad and the third damping member are both arranged at a gap between two adjacent sub-track slabs, and the shape memory pad and the third damping member are arranged side by side.
Technical Field
The invention relates to the technical field of rail transit, in particular to a shock absorption and isolation floating slab rail.
Background
In the existing floating slab track structure, a damping pad is arranged between a track bed and a track slab, the damping pad is mostly attached to the outer side of the track slab in a single layer and is positioned between the track bed and the track slab, the rubber damping pad is easy to age, the damping pad needs to be integrally replaced after being damaged or aged, the service cycle of the damping pad is limited, and the anti-seismic performance of the floating slab under the action of strong shock needs to be enhanced.
Disclosure of Invention
Therefore, it is necessary to provide a shock absorption and isolation floating slab track with easy replacement of a shock absorption pad and good shock absorption and isolation/isolation effects.
An isolation-reducing floating slab track comprising:
a ballast bed;
the track slab is arranged on the track bed;
the vibration damping piece is arranged between the track bed and the track slab and comprises a plurality of first vibration damping pads and a plurality of second vibration damping pads, the ageing resistance and the vibration damping performance of the first vibration damping pads are different from those of the second vibration damping pads, and the plurality of first vibration damping pads and the plurality of second vibration damping pads are connected to the outer side of the track slab in an array structure;
a rail connected to the rail plate; and
and the fastener fastens the steel rail to the rail plate.
According to the shock absorption and isolation floating slab track, the plurality of first shock absorption pads and the plurality of second shock absorption pads are arranged between the track bed and the track slab in an array structure, so that the shock absorption pieces are dispersed into the plurality of independent shock absorption pads to play a role in supporting, shock absorption and isolation, the integral sheet type installation mode of the shock absorption pieces in the traditional structure is improved, the use of materials of the shock absorption pads is reduced, and the installation, adjustment and replacement of the shock absorption pads are facilitated; through setting up the different damping pad of two kinds of durability and damping performance, can rationally arrange the demand that makes up two kinds of damping pads in order to satisfy vibration isolation under the train load effect simultaneously and the shock insulation under the earthquake load effect, application scope is wider, and does benefit to the saving cost.
In one embodiment, the first and second damping pads are in a dot, block or linear structure, so that the first and second damping pads are in any one of a dot array, a block array and a linear array.
In one embodiment, the first vibration reduction pads and the second vibration reduction pads are in any two of a point-shaped structure, a block-shaped structure or a linear structure, so that the first vibration reduction pads and the second vibration reduction pads are arranged in any two of a point-shaped array, a block-shaped array and a linear array.
In one embodiment, the first and second damping pads may be further adhered together to form an intermediate member, the intermediate member may have a double-layered stacked structure, and a plurality of intermediate members may be connected to the outer side of the track plate in an array structure.
In one embodiment, the track slab includes a top surface, a bottom surface, a first side surface and a second side surface, the bottom surface, the first side surface and the second side surface are abutted to the track bed through the damping member, the intermediate member is disposed on the top surface and the bottom surface, and the first side surface and the second side surface are provided with the first damping pad and/or the second damping pad.
In one embodiment, the first damping pad is made of rubber, and the second damping pad is made of polyurethane.
In one embodiment, the track further comprises a first damping member, and the first damping member is arranged between the track slab and the track bed and/or in the track bed.
In one embodiment, the damping device further comprises a second damping piece, and the second damping piece is hung on the steel rail.
In one embodiment, the track plate further comprises a buffer assembly, the track plate comprises a plurality of sub-track plates, the plurality of sub-track plates are arranged side by side at intervals, and the buffer assembly is arranged at a gap between two adjacent sub-track plates.
In one embodiment, the buffering assembly includes a shape memory buffer pad and a third damping member, the shape memory buffer pad and the third damping member are both disposed at a gap between two adjacent sub-track plates, and the shape memory buffer pad and the third damping member are disposed side by side.
Drawings
FIG. 1 is a schematic view of a partial structure of a seismic isolation and reduction floating slab track in an embodiment;
FIG. 2 is a schematic view of the combination of the vibration damping member, the sub-track plate, the buffering assembly and the steel rail in the vibration damping and isolating floating slab track shown in FIG. 1;
FIG. 3 is a perspective view of the vibration damping member and the track plate according to an embodiment;
fig. 4 is a combined isometric view of a damping member and a track plate in another embodiment.
Reference numerals: 100. a ballast bed; 200. a track plate; 201. a sub-track plate; 210. a top surface; 220. a bottom surface; 230. a first side surface; 240. a second side surface; 300. a vibration damping member; 301. a middleware; 310. a first vibration damping pad; 320. a second vibration damping pad; 400. a steel rail; 500. a fastener; 501. a first damping member; 600. a second damping member; 800. a buffer assembly; 810. a shape memory cushioning pad; 820. and a third damping member.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 3, an embodiment of a seismic isolation and reduction floating slab track includes a track bed 100, a
The
Through arranging a plurality of first damping
Referring to fig. 3 and 4, the first damping
Specifically, in some embodiments, the first damping
It should be noted that the dot-shaped structures and the block-shaped structures herein are only different in size, that is, the block size is slightly larger than the dot-shaped size, and the dot-shaped structures and the block-shaped structures include circular, oval, rectangular, square, or other irregular shapes, and the dot-shaped structures and the block-shaped structures are not limited in shape herein. The linear structure includes a long linear shape or a long wave shape.
Here, the array structure may be a circular array, a rectangular array, or other irregular array. The array structure may be formed by alternately arranging a plurality of rows of the first damping
In other embodiments, the first damping
For example, referring to fig. 4, the first damping
In other embodiments, the first damping
It can be understood that the double-layered structure can have a better vibration damping effect since the double-layered structure has a greater thickness than the single-layered structure. In a specific embodiment, a reinforcing fiber layer may be further disposed between the first damping
For example, referring to fig. 2 and 4, the
In a specific embodiment, first damping
Referring to fig. 1, the seismic isolation and reduction floating slab track further includes a first damping member 501, and the first damping member is disposed between the
Specifically, the first damping member 501 is one of a particle damper, a friction damper, a viscous damper or an eddy current damper, and the like, and the first damping member 501 can dissipate vibration energy generated under the action of train load or vertical seismic load so as to improve the vibration attenuation/damping capacity of the overall track structure in the vertical direction.
Referring to fig. 1, the seismic isolation and reduction floating slab track further includes a second damping
Specifically, the second damping
In a specific embodiment, the second damping
Further, referring to fig. 2, the shock absorption and isolation floating slab track further includes a
Specifically, the
It can be understood that, under the action of strong earthquake, the combination of the
It should be noted that
In particular embodiments, the third damping
In a specific embodiment, the shape
Above-mentioned subtract shock insulation floating slab track is array structure arrangement between railway roadbed 100 and
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
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