CN112144328B - Rail support assembly, method of assembling the same, and rail transit system - Google Patents
Rail support assembly, method of assembling the same, and rail transit system Download PDFInfo
- Publication number
- CN112144328B CN112144328B CN201910574280.XA CN201910574280A CN112144328B CN 112144328 B CN112144328 B CN 112144328B CN 201910574280 A CN201910574280 A CN 201910574280A CN 112144328 B CN112144328 B CN 112144328B
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- China
- Prior art keywords
- mortise
- prefabricated
- tenon
- pier stud
- cavity
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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
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
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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
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
- E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
Abstract
The invention discloses a track support assembly and an assembly method thereof, and a track traffic system, wherein the track support assembly comprises: prefabricated cushion cap and prefabricated pier stud, prefabricated cushion cap is including sinking chamber and mortise part, the top in sinking chamber is opened, mortise part includes mortise chamber and mortise piece, the mortise chamber with it is in to sink the chamber intercommunication, the mortise piece is located the top in mortise chamber, prefabricated pier stud includes pier stud and tenon portion, tenon portion with the pier stud links to each other, prefabricated pier stud be suitable for pre-join in marriage in sinking chamber and for mortise part motion, so that at least part of tenon portion passes through the sinking chamber gets into mortise chamber and backstop is in the below of mortise piece, so as to realize tenon portion with mortise cooperation of mortise part. The track supporting component provided by the invention has the advantages of high structural strength and high construction speed.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a rail support assembly, an assembly method thereof, a rail and a rail transit system.
Background
In the related art, the assembly of the pier stud and the bearing platform in the track supporting assembly usually adopts the modes of 'socket joint type wet joint connection', 'grouting sleeve connection', 'on-site post-tensioning prestress connection', and the like, so that the on-site implementation is complex, the construction difficulty is high, the precision requirement is high, the period is long, and the implementation is not facilitated.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention aims to provide the track supporting assembly which has high structural strength and high construction speed.
The invention further provides an assembly method of the track supporting assembly.
The invention also provides a track with the track supporting assembly.
The invention further provides a rail transit system with the rail.
The track support assembly according to the first aspect of the invention comprises: the prefabricated bearing platform comprises a sinking cavity and a mortise part, wherein the top of the sinking cavity is open, the mortise part comprises a mortise cavity and a mortise block, the mortise cavity is communicated with the sinking cavity, and the mortise block is positioned above the mortise cavity; the prefabricated pier stud comprises a pier stud and a tenon portion, the tenon portion is connected with the pier stud, the prefabricated pier stud is suitable for being pre-matched with the sinking cavity and moves relative to the mortise portion, so that at least part of the tenon portion enters the mortise cavity through the sinking cavity and stops below the mortise block to achieve tenon-mortise matching of the tenon portion and the mortise portion.
The track supporting component provided by the invention has the advantages of high structural strength and high construction speed.
In some embodiments, the track support assembly further comprises: and the limiting block is arranged in the vacant space of the sinking cavity to limit after the tenon part and the mortise part are matched in place.
In some embodiments, the track support assembly further comprises: and the filling part is used for filling the fit clearance between the prefabricated bearing platform, the prefabricated pier stud and the limiting block.
In some embodiments, the filling portion is formed by pressure grouting.
In some embodiments, the track support assembly further comprises: the locking piece is vertically locked with the mortise block and the tenon part in mortise and tenon matching.
In some embodiments, the dovetail is rigidly connected to the pier stud.
In some embodiments, the bottom surface of the tenon portion is flush with the bottom surface of the pier stud and is a horizontal plane, and the bottom wall of the sinking cavity is flush with the bottom wall of the mortise cavity and is a horizontal plane.
In some embodiments, the prefabricated pier stud translates relative to the mortise portion such that the at least a portion of the tenon portion moves into the mortise cavity through the countersink and stops under the mortise block to achieve a mortise-tenon fit of the tenon portion and the mortise portion.
In some embodiments, the sinking chamber comprises an upstream chamber and a downstream chamber, the downstream chamber and the mortise are both disposed downstream of the upstream chamber in a direction in which the pier translates from the sinking chamber to the mortise, the prefabricated pier is pre-assembled to the upstream chamber, the prefabricated pier translates relative to the mortise such that a portion of the pier translates from the upstream chamber into the downstream chamber, and the at least a portion of the tenon translates from the upstream chamber into the mortise.
In some embodiments, the two mortise portions are respectively located at two sides of the downstream cavity in a first direction, and the first direction is perpendicular to a translation direction of the abutment and perpendicular to a vertical direction.
In some embodiments, the tenon portions are two and are respectively located at two sides of the pier stud, and the two tenon portions and the two mortise portions are respectively matched with the mortise and tenon.
In some embodiments, the two tenon portions have the same structure and the prefabricated pier stud has a central symmetrical structure, and the two mortise portions have the same structure and are symmetrically arranged about a central axis of the downstream cavity.
In some embodiments, the direction in which the abutment translates from the upstream cavity to the downstream cavity is defined as a back-to-front direction, the front surface of the dovetail is flush with the front surface of the abutment, and the rear surface of the dovetail is flush with the rear surface of the abutment.
In some embodiments, the length of extension of the downstream cavity in the front-rear direction is equal to or greater than the length of extension of the abutment in the front-rear direction, and the length of extension of the mortise cavity in the front-rear direction is equal to or greater than the length of extension of the tenon portion in the front-rear direction.
In some embodiments, the pier stud is a square stud and the dovetail is a square block.
In some embodiments, the prefabricated abutment has a support structure thereon for supporting and providing a reaction force to a pushing mechanism for driving the prefabricated abutment to translate.
In some embodiments, the support structure is a recess and is formed within the settling chamber and is open at the top.
The track according to the second aspect of the invention comprises: a track beam and a track support assembly according to the first aspect of the invention, the track beam being mounted on the pier stud.
The track disclosed by the invention has the advantages of high structural strength and high construction speed.
The rail transit system according to the third aspect of the present invention comprises: a train and a track according to the second aspect of the invention, the train travelling along the track.
The rail transit system provided by the invention has the advantages of high construction speed and high traffic safety.
A method of assembling a track support assembly according to a fourth aspect of the present invention, the track support assembly being a track support assembly according to some embodiments of the first aspect of the present invention, and the track support assembly including a stopper, the method of assembling comprising the steps of: landing the prefabricated pier stud, so that the prefabricated pier stud is sunk into the sinking cavity; pushing the prefabricated pier stud to translate, so that the tenon part translates to the mortise cavity until the tenon part and the mortise part are matched in place; and filling the limiting block into the vacant space of the sinking cavity.
According to the assembly method of the track support assembly, the construction difficulty is low, and the construction speed is high.
In some embodiments, after the space left by the sinking cavity is filled with the limiting block, pressure grouting and caulking are performed, so that the fit gaps among the prefabricated bearing platform, the prefabricated pier stud and the limiting block form a filling part.
In some embodiments, pushing the prefabricated pier stud to translate causes the tenon portion to translate toward the mortise cavity until the tenon portion and the mortise portion are mortise-tenon fitted in place, further comprising: and performing pressure grouting and caulking to form a filling part between the mortise part and the tenon part.
In some embodiments, before pushing the prefabricated pier column to translate, a beam support is installed on the pier column, a beam with a guide wheel is installed on the beam support, a first jack is arranged between the beam and the upper surface of the prefabricated bearing platform, the first jack is used for supporting the beam to lift the prefabricated pier column, the installation height of the guide wheel on the beam is reduced, the prefabricated pier column is lowered through the first jack until the guide wheel is supported on the top surface of the prefabricated bearing platform, and a second jack is used for pushing the prefabricated pier column to translate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is an exploded view of a track support assembly according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of the prefabricated platform shown in FIG. 1;
FIG. 3 is an assembly process diagram of the track support assembly shown in FIG. 1;
FIG. 4 is an assembly view of the track support assembly shown in FIG. 1;
FIG. 5 is a cross-sectional view of the track support assembly shown in FIG. 4;
FIG. 6 is another assembly process diagram of the track support assembly shown in FIG. 1;
FIG. 7 is an exploded view of a track support assembly according to another embodiment of the present invention;
FIG. 8 is an exploded view of a track support assembly according to another embodiment of the present invention;
FIG. 9 is an exploded view of a track support assembly according to another embodiment of the present invention;
FIG. 10 is an exploded view of a track support assembly according to another embodiment of the present invention;
FIG. 11 is a cross-sectional view of the prefabricated platform shown in FIG. 10;
fig. 12 is a schematic diagram of a rail transit system in accordance with an embodiment of the present invention.
Reference numerals:
a rail transit system 10000;
a track 1000; train 2000; a track support assembly 100; a track beam 200;
prefabricating a bearing platform 1; a sinking cavity 11; an upstream chamber 111; a downstream chamber 112;
a central cavity 113; a peripheral cavity 114;
mortise part 12; mortise 121; mortise block 122; a support structure 13;
prefabricating pier studs 2; pier column 21; a tenon portion 22;
a limiting block 3; a locking piece 4; a filling part 5;
a beam holder 6; a cross beam 7; a guide wheel 71;
a first jack 81; a pushing mechanism 82; a second jack 820;
and a hoisting device 9.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.
Next, a track support assembly 100 according to an embodiment of the first aspect of the present invention is described.
As shown in fig. 1 and 2, a track support assembly 100 according to an embodiment of the first aspect of the present invention may include prefabricated deck 1 and prefabricated pier stud 2. Wherein, prefabricated cushion cap 1 includes heavy chamber 11 and fourth of twelve earthly branches portion 12, and the top in heavy chamber 11 is opened, and fourth of twelve earthly branches portion 12 includes fourth of twelve earthly branches chamber 121 and fourth of twelve earthly branches piece 122, fourth of twelve earthly branches chamber 121 and heavy chamber 11 intercommunication, fourth of twelve earthly branches piece 122 is located the top in fourth of twelve earthly branches chamber 121.
As shown in fig. 1, the prefabricated pier stud 2 includes a pier stud 21 and a tenon portion 22, the tenon portion 22 is connected with the pier stud 21, and the prefabricated pier stud 2 is adapted to be pre-assembled in the countersink 11 and move relative to the mortise portion, so that at least part of the tenon portion 22 enters the mortise cavity 121 through the countersink 11 and stops under the mortise block 122 to implement mortise-tenon fit of the tenon portion 22 and the mortise portion 12. For example, in connection with fig. 3, when the prefabricated pier stud 2 is assembled, the prefabricated pier stud 2 is pre-assembled in the sinking cavity 11, and at least part (i.e., a part or all) of the tenon portion 22 enters the mortise cavity 121 through the sinking cavity 11 and stops under the mortise block 122 during the movement (e.g., rotation or movement) of the prefabricated pier stud 2, so as to implement mortise-tenon engagement of the tenon portion 22 and the mortise portion 12 (e.g., the state shown in fig. 4 and 5).
That is, when the prefabricated abutment 1 and the prefabricated abutment 2 are assembled, the prefabricated abutment 2 is first sunk into the sunk cavity 11, and then the prefabricated abutment 2 is driven to move (e.g. rotate or move) so that at least part of the tenon portion 22 enters the mortise cavity 121 through the sunk cavity 11, and the tenon portion 22 can not move upwards due to the fact that the mortise block 122 is arranged above the mortise cavity 121, so that the tenon portion 22 is prevented from being separated upwards from the mortise cavity 121, and tenon and mortise joints of the tenon portion 22 and the mortise portion 12 are matched in place, and the prefabricated abutment 2 and the prefabricated abutment 1 are connected by tenon and mortise joints. It will be appreciated that when mortise and tenon portions 22 and 12 are mated in place, although block 122 is stopped above mortise and tenon portion 22, a gap (i.e., no contact) may be provided between the bottom surface of block 122 and the top surface of mortise and tenon portion 22, so that mortise and tenon portion 22 may smoothly enter mortise cavity 121.
Therefore, according to the track supporting assembly 100 of the embodiment of the invention, as the prefabricated bearing platform 1 and the prefabricated pier stud 2 can be factory prefabricated members, and the prefabricated bearing platform 1 and the prefabricated pier stud 2 can be assembled in a mortise-tenon fit mode, the site construction time is greatly shortened, and the overall structural strength of the track supporting assembly 100 is improved.
In some embodiments of the present invention, as shown in fig. 1 and 4, the track support assembly 100 may further include: and the limiting block 3 is arranged in the vacant space (combining with fig. 4) of the sinking cavity 11 to limit after the tenon and mortise parts 22 and the mortise parts 12 are matched in place. That is, after the tenon portion 22 and the mortise portion 12 are in mortise-tenon fit, that is, after the above-mentioned at least part of the tenon portion 22 leaves the sinking cavity 11 and enters the mortise cavity 121, there is always a free space in the sinking cavity 11, and at this time, the free space in the sinking cavity 11 can be filled with the stopper 3 (but not required to be filled, of course, the filling is also required), so as to play a limiting role on the prefabricated pier 2, and avoid the movement of the prefabricated pier 2 to cause the separation of the tenon portion 22 and the mortise portion 12. Therefore, the limiting block 3 can be a factory prefabricated member, so that the site construction time is further shortened. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the rail supporting assembly 100 may not include the stopper 3, and at this time, the empty space in the sinking cavity 11 may be filled by grouting or the like.
In some embodiments of the present invention, as shown in fig. 5, the track support assembly 100 may further include: and the filling part 5 is used for filling the fit gaps of the prefabricated bearing platform 1, the prefabricated pier stud 2 and the limiting block 3. That is, after the mortise and tenon joint of the tenon portion 22 and the mortise and tenon portion 12 is completed and after the stopper 3 is filled, the pressure grouting operation may be performed so that the gap space that is not filled forms the filling portion 5, so that the connection reliability of the prefabricated cap 1 and the prefabricated pier stud 2 may be further improved, thereby improving the overall structural reliability of the rail supporting assembly 100. For example, in some specific examples, the filling portion 5 may be formed by pressure grouting, so as to facilitate processing, and of course, the present invention is not limited thereto, and filling may be implemented by other methods, which will not be described herein.
In some embodiments of the present invention, as shown in fig. 6, the track support assembly 100 may further include: the locking piece 4, the mortise block 122 and the tenon part 22 which are matched with each other in a mortise and tenon mode are vertically locked by the locking piece 4. It will be appreciated that, after the above-mentioned at least part of the tenon portion 22 enters the mortise cavity 121, it may be located below the mortise block 122 above the mortise cavity 121, at this time, the locking piece 4 may be utilized to penetrate the mortise block 122 and the tenon portion 22 located below the mortise block 122 from top to bottom, so as to define the relative positions of the mortise portion 12 and the tenon portion 22, and avoid the above-mentioned at least part of the tenon portion 22 from exiting from the mortise cavity 121, thereby improving the reliability of mortise-tenon matching of the prefabricated pile cap 1 and the prefabricated pier stud 2, and facilitating the reliable proceeding of the subsequent other construction operations.
In some embodiments of the present invention, the dovetail 22 is rigidly connected to the pier stud 21, that is, the dovetail 22 is relatively stationary with respect to the pier stud 21, and the prefabricated pier stud 2 is a factory prefabricated component, rather than a cast-in-place component at the construction site. Thus, on one hand, the prefabrication processing of the prefabrication pier stud 2 is facilitated, and on the other hand, when the pier stud 21 is driven to move, the tenon portion 22 can reliably follow the pier stud 21 to move, so that the assembly reliability is improved. For example, in some specific examples of the present invention, a plurality of tenon portions 22 may be overhanging at the lower end of the pier stud 21 in the main stress direction, and the longitudinal ribs of the pier stud 21 are horizontally bent into the stress main ribs of the tenon portions 22 or the longitudinal ribs of the tenon portions 22 are anchored into the pier stud 21. For example, in some embodiments of the present invention, the abutment 21 and the dovetail 22 may be integrally formed, further improving the reliability of the assembly.
Of course, the present invention is not limited thereto, for example, in other embodiments of the present invention, the tenon 22 and the pier stud 21 may be movably connected, for example, the tenon 22 may be rotatably and/or movably connected to the pier stud 21, so that the relative positions of the tenon 22 and the pier stud 21 may be adjusted during the assembly process, thereby meeting the assembly requirements of prefabricated abutment 1 with different structural shapes.
In some embodiments of the present invention, as shown in fig. 5, the bottom surface of tenon 22 and the bottom surface of pier stud 21 may be flush and all horizontal, and the bottom wall of countersunk cavity 11 and the bottom wall of mortise cavity 121 are flush and all horizontal. Therefore, the tenon portion 22 can easily enter the mortise cavity 121 from the sinking cavity 11 during assembly, so that the assembly difficulty is reduced, and the assembly efficiency is improved.
Of course, the present invention is not limited thereto, and in other embodiments of the present invention, for example, as shown in fig. 7, the bottom surface of the tenon portion 22 and the bottom surface of the pier stud 21 may not be flush, and the bottom wall of the setting chamber 11 and the bottom wall of the mortise chamber 121 may not be flush. In addition, when the tenon portion 22 is movably connected to the pier stud 21, "the bottom surface of the tenon portion 22 is flush with the bottom surface of the pier stud 21" means that: at least one time that the dovetail 22 moves relative to the pier stud 21, the bottom surface of the dovetail 22 is flush with the bottom surface of the pier stud 21.
Here, it should be noted that there are many ways to make at least part (i.e., part or all) of the tenon portion 22 enter the mortise cavity 121, for example, the tenon portion 22 may be engaged with the mortise portion 12 by driving the prefabricated abutment 2 to translate (for example, in the following embodiment one); for another example, the tenon portion 22 may be engaged with the mortise portion 12 by driving the prefabricated abutment 2 to rotate (for example, the second embodiment below); for another example, the tenon portion 22 may be engaged with the mortise portion 12 by driving the prefabricated pier stud 2 to move along a curve; for another example, mortise part 22 may be engaged with mortise part 12 by driving prefabricated abutment 2 to translate and then rotate (or rotate and then translate), and so on.
For simplicity of description, only two specific embodiments are described below for illustration, and after a person skilled in the art reads the following technical solutions, other driving solutions will be obvious to understand, so that no description is given for other solutions.
Example 1
In the first embodiment, the prefabricated pier stud translates relative to the mortise part, so that at least part of the mortise part 22 moves into the mortise cavity 121 through the countersink 11 and stops under the mortise block 122 to realize mortise-tenon fit of the mortise part 22 and the mortise part 12. For example, as shown in fig. 1 and 3, prefabricated abutment 2 is configured such that during translation of abutment 21, at least a portion of tenon portion 22 is translated into mortise cavity 121 by countersink 11 and stopped under mortise block 122 to achieve a mortise and tenon engagement of tenon portion 22 and mortise portion 12. It will be appreciated that during the translation of the prefabricated pier stud 2, the pier stud 21 and the tenon 22 translate synchronously, so that the prefabricated pier stud 2 is configured to drive the tenon 22 to translate into the mortise 121 at least partially through the translation of the pier stud 21, or, by driving the translation of the pier stud 21, the pier stud 21 drives the tenon 22 to translate, and during the translation of the tenon 22, the prefabricated pier stud can enter the mortise 121 from the countersink 11. Therefore, the assembly can be simply and effectively realized, the assembly difficulty is reduced, and the assembly efficiency is improved.
In the first embodiment, as shown in fig. 1, the setting chamber 11 may include an upstream chamber 111 and a downstream chamber 112, where in the direction in which the abutment 21 translates from the setting chamber 11 to the mortise chamber 121 (in the back-to-front direction as shown in fig. 1), the downstream chamber 112 and the mortise part 12 are both provided downstream of the upstream chamber 111 (in the front side as shown in fig. 1, the downstream side is the upstream), and the prefabricated abutment translates relative to the mortise part so that a portion of the abutment 21 translates from the upstream chamber 111 into the downstream chamber 112 and at least a portion of the tenon 22 translates from the upstream chamber 111 into the mortise chamber 121. For example, with reference to fig. 3-4, prefabricated pier stud 2 is pre-assembled in upstream cavity 111, and during translation of prefabricated pier stud 2, a portion of pier stud 21 (i.e., at least a portion of the lower end) translates from upstream cavity 111 into downstream cavity 112, and at least a portion of tongue 22 (i.e., a portion or all) translates from upstream cavity 111 into mortise cavity 121. From this, can realize prefabricated pier stud 2's miniaturization, convenient processing and transportation, convenient assembly moreover.
Of course, the present invention is not limited thereto, and in other specific examples of the first embodiment, for example, as shown in fig. 8, the sinking chamber 11 may not include the downstream chamber 112, for example, as shown in fig. 8, the abutment 21 may be always located in the upstream chamber 111 during the translation process, that is, during the translation process of the abutment 21 in the upstream chamber 111, the at least part of the tenon portion 22 may be translated from the upstream chamber 111 into the mortise chamber 121. Thus, different practical requirements can be met.
In the first embodiment, as shown in fig. 1, there may be two mortise portions 12, and in the first direction, the two mortise portions 12 are respectively located at two sides of the downstream cavity 112, wherein the first direction is perpendicular to the translation direction of the abutment 21 and perpendicular to the vertical direction (e.g. the left-right direction shown in fig. 1). Thus, by increasing the number of mortise portions 12, the degree of flexibility in assembly can be increased, for example, when the mortise portion 22 is provided on the left or right side of the abutment 21, mortise-tenon engagement between the mortise portions 12 and the mortise portion 22 can be achieved.
Moreover, in this example, as shown in fig. 1, two tenon portions 22 may be respectively located at two sides of the pier stud 21, and the two tenon portions 22 and the two mortise portions 12 may be respectively corresponding to the mortise and tenon joint, for example, when the left tenon portion 22 may be matched with the left mortise portion 12 and the right tenon portion 22 may be matched with the right mortise portion 12, the number of tenon portions 22 and mortise portions 12 of the mortise and tenon joint may be increased, so that the reliability of the mortise and tenon joint of the prefabricated pile cap 1 and the prefabricated pier stud 2 may be improved, and the overall structural reliability of the track supporting assembly 100 may be improved.
In some specific examples, as shown in fig. 1-2, two mortise portions 22 are identical in structure and prefabricated pier stud 2 is a centrally symmetrical structure, and two mortise portions 12 are identical in structure and are axially symmetrically disposed about a center line L of downstream cavity 112. Therefore, the prefabricated pier stud 2 is convenient to process and manufacture, and can be of a central symmetrical structure, so that the prefabricated pier stud 2 can be quickly adjusted to an assembly direction, the assembly difficulty is reduced, and the assembly efficiency is improved. I.e. the fool-proof effect is realized, so that the prefabricated pier stud 2 can be assembled without reverse direction.
Of course, the present invention is not limited thereto, and for example, in other embodiments of the present invention, the number of mortise portions 12, and the relative positional relationship of the mortise portions 12 and the downstream cavity 112 may also be selected according to actual requirements, for example, in the example shown in fig. 9, the mortise portions 12 may also be only one and located on one side of the downstream cavity 112.
As shown in fig. 1, defining the direction of translation of abutment 21 from upstream cavity 111 to downstream cavity 112 as a back-to-front direction, the front surface of dovetail 22 may be flush with the front surface of abutment 21 and the rear surface of dovetail 22 may be flush with the rear surface of abutment 21. From this, pier stud 21's simple structure, the processing of being convenient for, and can further realize prefabricated pier stud 2's miniaturization, convenient processing and transportation, convenient assembly moreover, and behind pier stud 21 translation, the great gap can not appear in mortise and tenon joint department to on the one hand can improve mortise and tenon joint's reliability, on the other hand can reduce follow-up pressure grouting materials and the time spent of air-drying of caulking.
In addition, as shown in fig. 1, the pier stud 21 has a simple structure, and can be a square column (i.e., the cross section of the pier stud 21 is rectangular), and the tenon portion 22 has a simple structure, and can be a square block (i.e., the cross section of the tenon portion 22 is rectangular), so that the processing and the assembly are convenient, and after the pier stud 21 translates, a large gap cannot appear at the tenon-mortise matching position, so that on one hand, the reliability of tenon-mortise matching can be improved, and on the other hand, the grouting material for subsequent pressure caulking and the air drying time can be reduced.
Further, the front and rear surfaces of the pier stud 21 may each extend in the right-left direction and be parallel, and the front and rear surfaces of the tenon portion 22 may each extend in the right-left direction and be parallel. The left and right surfaces of the pier stud 21 may each extend in the front-rear direction and may be parallel, and the left and right surfaces of the left and right tongue portions 22 may each extend in the front-rear direction and may be parallel.
As shown in fig. 5, the bottom surface of the pier stud 21 may be a horizontal surface, and the top surface and the bottom surface of the tenon portion 22 may be both horizontal surfaces. From this, pier stud 21's simple structure, the processing of being convenient for, convenient assembly, and behind pier stud 21 translation, the great gap can not appear in mortise and tenon joint department to on the one hand can improve mortise and tenon joint's reliability, on the other hand can reduce follow-up pressure grouting materials and the air-drying time of filling.
As shown in fig. 1, the length of extension of downstream cavity 112 in the front-rear direction may be equal to or greater than the length of extension of abutment 21 in the front-rear direction, and the length of extension of mortise cavity 121 in the front-rear direction may be equal to or greater than the length of extension of tenon portion 22 in the front-rear direction. Thus, dovetail 22 may translate entirely into mortise cavity 121, and abutment 21 may translate entirely into downstream cavity 112. Thereby, the processing and the assembly of the limiting block 3 are facilitated. Of course, the present invention is not limited thereto, and the prefabricated pier stud 2 may be processed into other shapes as required, and will not be described here.
Of course, the present invention is not limited thereto, and in other specific examples of the present embodiment, pier stud 21 may not be a square stud (e.g., as shown in fig. 8), tenon portion 22 may not be a square block (e.g., as shown in fig. 8), and pier stud 21 may be a circular stud, an elliptical stud, an irregular stud, or the like, in which case, in the design process, it is only necessary to ensure that the space of setting chamber 11 and mortise chamber 121 is enough for prefabricated pier stud 2 to translate.
In the first embodiment, as shown in fig. 3, the prefabricated pier stud 2 may be driven to translate by a pushing mechanism 82 (such as a second jack 820, etc.), the prefabricated platform 1 has a supporting structure 13 thereon, the supporting structure 13 is a groove or a bracket, the pushing mechanism 82 is supported on the supporting structure 13, and the supporting structure 13 is used for supporting the pushing mechanism 82 to provide a reaction force to the pushing mechanism 82. Therefore, the support pieces except the prefabricated bearing platform 1 are not required to apply reaction force, so that construction is convenient, and construction difficulty and construction cost are reduced.
For example, in the specific example shown in fig. 3, the support structure 13 may be a groove and formed within the settling chamber 11 with an open top. Therefore, the device is convenient to process, and the distance between the supporting structure 13 and the prefabricated pier stud 2 can be shortened, so that the force application of the pushing mechanism 82 is facilitated, and the construction difficulty and the construction cost are reduced. In addition, it should be noted that, in this embodiment, when the track support assembly 100 includes the stopper 3, the stopper 3 may also be configured to be a special-shaped structure that can collectively fill the grooves, so that the construction speed may be further increased, and the overall structural reliability of the track support assembly 100 may be improved.
Next, an assembling method of the rail supporting assembly 100 of the first embodiment is described.
As shown in fig. 3, the assembly method may include the steps of: lowering the prefabricated pier stud 2 to enable the prefabricated pier stud 2 to sink into the sinking cavity 11 (namely hoisting the prefabricated pier stud 2 into the initial position in the reserved hole of the prefabricated bearing platform 1); pushing prefabricated pier stud 2 to translate, so that tenon portion 22 translates toward mortise 121 until tenon portion 22 and mortise portion 12 are matched in place (i.e. prefabricated pier stud 2 is moved to the design position in a horizontal pushing manner). Then, the empty space of the sinking chamber 11 is filled with the limiting block 3 (i.e. the limiting block 3 is then lifted into the initial position for filling). Therefore, the assembly precision requirement is low, the assembly method is simple, and the construction speed is high.
In addition, after the tenon portion 22 and the mortise portion 12 are matched in place, the first pressure grouting caulking can be performed, and after the space left by the sinking cavity 11 is filled with the stopper 3, the second pressure grouting caulking can be performed, so that the matched gaps of the prefabricated pile cap 1, the prefabricated pile cap 2 and the stopper 3 form the filling portion 5 (namely, after the stopper 3 is in place, the matched gaps among the prefabricated pile cap 2, the prefabricated pile cap 1 and the stopper 3 are closed by pressure grouting).
Therefore, when the first pressure grouting caulking is performed, the stopper 3 is not filled yet, so that an observation space is provided, the effect of the first pressure grouting caulking is facilitated to be observed, namely, the caulking quality of the first pressure grouting caulking can be observed in the upstream cavity 111 (namely, the initial position where the prefabricated pier stud 2 is located) of the sinking cavity 11, the caulking is ensured to be filled with the pressure grouting material, and the structural strength of the track supporting assembly 100 is improved.
Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the step of the first pressure grouting caulking may be omitted, that is, there may be only the step of the second pressure grouting caulking. Alternatively, the steps of the first pressure grouting caulking and the second pressure grouting caulking may be omitted.
Referring to fig. 3, the assembly method may further include the steps of: before the prefabricated pier column 2 is pushed to translate (i.e., after the prefabricated pier column 2 is lifted into the initial position in the reserved hole of the prefabricated bearing platform 1), the beam support 6 is mounted on the pier column 21 (i.e., the reusable bracket for mounting, for example, the beam support 6 can be connected to the reserved bolt hole on the pier column 21 by bolts, but the invention is not limited thereto).
Thereafter, the cross beam 7 having the guide wheel 71 is mounted to the beam support 6 (for example, bolting may be adopted), at this time, the guide wheel 71 on the cross beam 7 is positioned at a high hole position with respect to the cross beam 7, then, a first jack 81 is provided between the cross beam 7 and the upper surface of the prefabricated support platform 1, the prefabricated pier 2 is lifted up by the support cross beam 7 using the first jack 81 (that is, the mounting cross beam 7 is lifted up to the designed elevation by the first jack 81), then, the mounting height of the guide wheel 71 on the cross beam 7 may be lowered so that the guide wheel 71 on the cross beam 7 is lowered to a low hole position with respect to the cross beam 7, the prefabricated pier 2 is lowered by the first jack 81 (that is, the first jack 81 is, the oil is released) until the guide wheel 71 is supported on the upper surface of the prefabricated support platform 1 (that is, the bottom of the guide wheel 71 is forced to contact the top surface of the prefabricated support platform 1, and the weight of the prefabricated pier 2 is supported).
Thereafter, the prefabricated pier stud 2 is pushed to translate by the second jack 820. Here, it should be noted that, if a firm horizontal counterforce device is provided on the site, the prefabricated pier stud 2 can be pushed to the design position of mortise-tenon fit by directly using the device and the second jack 820; if there is no firm horizontal reaction device on site, the support structure 13 may be provided (for example, the support structure 13 may be a groove structure widened by about 100mm along the translation direction of the prefabricated pier 2, and the groove structure is suitable for accommodating an ultrathin jack for pushing, namely, the second jack 820), the second jack 820 is mounted on the support structure 13, and the second jack 820 pushes the prefabricated pier 2 to translate by using a reaction force provided by the support structure 13 (namely, a reaction force provided by the prefabricated bearing platform 1).
After the grouting material of the first pressure grouting joint filling is solidified to reach the design strength, the beam brackets 6 and the cross beams 7 for installation can be removed, and the hoisting device for hoisting can be removed (of course, the hoisting device can be removed earlier, for example, after the first jack 81 is supported, the hoisting device can be optionally removed). In addition, if the load is larger, the locking piece 4 can be additionally arranged, so that the connection rigidity between the prefabricated bearing platform 1 and the prefabricated pier column 2 is increased.
Therefore, compared with the wet joint connection in the related art, the track support assembly 100 according to the embodiment of the invention basically realizes the dry joint connection, has simple construction process and small amount of joint filling material of the filling part, can form strength and restore traffic within 6 hours (namely, the total time of the whole process of the assembly method of the track support assembly 100 can be less than 6 hours) by adopting the early-strength high-performance grouting material, improves the construction speed, avoids the defects of long-term traffic occupation caused by the long maintenance period of the traditional wet joint process, large influence of climate, large noise amount, unstable quality and the like of cast-in-place concrete, and improves the environmental protection level.
In addition, because the prefabricated bearing platform 1 and the prefabricated pier column 2 can be factory prefabricated members, the full assembly type of the whole structural system is realized, the industrialization degree is high, the production quality of the components is controllable and reliable, the compressive strength of concrete materials can be fully utilized, the bending tensile strength of the prefabricated bearing platform 1 and the prefabricated pier column 2 is fully exerted, and the bearing capacity of the structural materials is fully embodied.
Example two
In the second embodiment, as shown in fig. 10-11, the prefabricated abutment 2 is configured such that at least part of the tenon portion 22 is turned into the mortise cavity 121 through the countersink 11 and stopped under the mortise block 122 during rotation of the abutment 2, so as to achieve mortise-tenon engagement of the tenon portion 22 and the mortise portion 12. That is, when the prefabricated pile cap 1 and the prefabricated pile cap 2 are assembled, the prefabricated pile cap 2 is first sunk into the sinking cavity 11, and then the prefabricated pile cap 2 is driven to rotate, so that at least part of the tenon portion 22 enters the mortise cavity 121 through the sinking cavity 11, and the mortise block 122 is arranged above the mortise cavity 121, so that the tenon portion 22 can not move upwards due to the stop of the mortise block 122, the tenon portion 22 is prevented from being separated upwards from the mortise cavity 121, and the mortise and tenon of the tenon portion 22 and the mortise portion 12 are matched in place, so that the tenon and mortise joint between the prefabricated pile cap 2 and the prefabricated pile cap 1 is realized.
Therefore, according to the track supporting assembly 100 of the embodiment of the invention, as the prefabricated bearing platform 1 and the prefabricated pier stud 2 can be factory prefabricated members, and the prefabricated bearing platform 1 and the prefabricated pier stud 2 can be assembled in a mortise-tenon fit mode, the site construction time is greatly shortened, and the overall structural strength of the track supporting assembly 100 is improved.
It should be noted that, during the rotation of the prefabricated abutment 2, the abutment 21 and the tenon portion 22 rotate synchronously about the same pivot axis (for example, the central axis of the abutment 21 may be), so that when the abutment 21 is driven to rotate, the abutment 21 drives the tenon portion 22 to rotate synchronously, so that at least part of the tenon portion 22 rotates into the mortise cavity 121. Therefore, the assembly can be simply and effectively realized, the assembly difficulty is reduced, and the assembly efficiency is improved.
In this embodiment, as shown in fig. 10 to 11, the sinking chamber 11 may include a central chamber 113 and a peripheral chamber 114, the peripheral chamber 114 and the mortise part 12 are all disposed around the central chamber 113, the abutment 21 is fitted in the central chamber 113 and rotates around a pivot axis vertically penetrating the abutment 21, and the mortise part 22 is turned from the peripheral chamber 114 into the mortise chamber 121 and is stopped under the mortise block 122. Therefore, the movement space of the prefabricated pier stud 2 can be reduced, the size of the sinking cavity 11 can be smaller, the subsequent filling operation is convenient, and the construction time is shortened. Of course, the present invention is not limited thereto, and in other specific examples of the first embodiment, the settling chamber 11 may be configured in other shapes, and the pivot axis of the prefabricated pier 2 may not penetrate the pier 21, thereby satisfying different practical requirements.
Next, a track 1000 according to an embodiment of the second aspect of the present invention is described.
As shown in fig. 12, a rail 1000 according to an embodiment of the second aspect of the present invention may include a rail beam 200 and a rail support assembly 100 according to an embodiment of the first aspect of the present invention, the rail beam 200 being erected on an abutment 21 to support the rail beam 200 by the rail support assembly 100. Wherein, because the structural strength of the rail supporting assembly 100 is good, the overall structural reliability of the rail 1000 can be improved, and because the construction speed of the rail supporting assembly 100 is fast, the rapid laying of the rail 1000 can be realized.
Next, a rail transit system 10000 according to an embodiment of the third aspect of the present invention is described.
As shown in fig. 12, a rail transit system 10000 according to an embodiment of the third aspect of the present invention may include a train 2000 and a rail 1000 according to an embodiment of the second aspect of the present invention, the train 2000 running along the rail 1000. The structural strength of the track 1000 is good, so that the running safety of the train 2000 can be improved, and the track 1000 is fast to lay, so that the rapid train passing and traffic recovery can be realized.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A method of assembling a track support assembly (100), the track support assembly (100) comprising:
the prefabricated bearing platform (1), the prefabricated bearing platform (1) comprises a sinking cavity (11) and a mortise part (12), the top of the sinking cavity (11) is open, the mortise part (12) comprises a mortise cavity (121) and a mortise block (122), the mortise cavity (121) is communicated with the sinking cavity (11), and the mortise block (122) is located above the mortise cavity (121);
-a prefabricated pier stud (2), the prefabricated pier stud (2) comprising a pier stud (21) and a tenon portion (22), the tenon portion (22) being connected to the pier stud (21), the prefabricated pier stud (2) being adapted to be pre-fitted to the countersink (11) and to move relative to the mortise portion so that at least part of the tenon portion (22) enters the mortise cavity (121) through the countersink (11) and stops under the mortise block (122) to achieve mortise-tenon fit of the tenon portion (22) and the mortise portion (12), the prefabricated pier stud (2) being translatable relative to the mortise portion (12) so that the at least part of the tenon portion (22) moves into the mortise cavity (121) through the countersink (11) and stops under the mortise block (122) to achieve mortise-tenon fit of the tenon portion (22) and the mortise portion (12);
the limiting block (3) is arranged in the free space of the sinking cavity (11) to limit after the tenon part (22) and the mortise part (12) are matched in place;
the filling part (5), the filling part (5) fills the fit gap of the prefabricated bearing platform (1), the prefabricated pier column (2) and the limiting block (3), the filling part (5) is formed in a pressure grouting mode, the filling part (5) comprises a first filling part and a second filling part, wherein after the tenon part (22) and the mortise part (12) are in place in a tenon-and-mortise fit mode, first pressure grouting caulking is carried out, and the first filling part is formed between the mortise part (12) and the tenon part (22); filling the empty space of the sinking cavity (11) with the limiting block (3) and then performing second pressure grouting joint filling to form a second filling part in the fit clearance among the prefabricated bearing platform (1), the prefabricated pier column (2) and the limiting block (3);
the assembly method comprises the following steps:
the prefabricated pier stud (2) is descended, so that the prefabricated pier stud (2) is sunk into the sinking cavity (11);
pushing the prefabricated pier stud (2) to translate, enabling the tenon part (22) to translate towards the mortise cavity (121) until the tenon part (22) and the mortise part (12) are matched in place, and then performing first pressure grouting and caulking to enable the first filling part to be formed between the mortise part (12) and the tenon part (22);
filling the free space of the sinking cavity (11) with the limiting block (3), and then performing second pressure grouting and gap filling to form a second filling part in the fit clearance among the prefabricated bearing platform (1), the prefabricated pier column (2) and the limiting block (3), wherein the first filling part and the second filling part form the filling part (5);
before pushing prefabricated pier stud (2) translation, install beam support (6) on pier stud (21), to beam support (6) installation has crossbeam (7) of leading wheel (71) crossbeam (7) with set up first jack (81) between the upper surface of prefabricated cushion cap (1), utilize first jack (81) support crossbeam (7) lifts prefabricated pier stud (2), reduces leading wheel (71) are in installation height on crossbeam (7), make through first jack (81) prefabricated pier stud (2) decline, until leading wheel (71) support in the top surface of prefabricated cushion cap (1), adopt second jack (820) to promote prefabricated pier stud (2) translation.
2. A track support assembly (100) formed by the track (1000) assembly method of claim 1.
3. The track support assembly (100) of claim 2, further comprising:
a locking piece (4), the locking piece (4) vertically locks the mortise block (122) and the tenon part (22) which are matched with each other in mortise and tenon mode.
4. The track support assembly (100) of claim 2, wherein the dovetail (22) is rigidly connected with the pier stud (21).
5. The track support assembly (100) of claim 2, wherein the bottom surface of the tenon portion (22) is flush with the bottom surface of the pier stud (21) and is a horizontal plane, and the bottom wall of the countersink (11) is flush with the bottom wall of the mortise cavity (121) and is a horizontal plane.
6. The track support assembly (100) of claim 2, wherein the setting chamber (11) comprises an upstream chamber (111) and a downstream chamber (112), the downstream chamber (112) and the mortise (12) are both provided downstream of the upstream chamber (111) in a direction in which the abutment (21) translates from the setting chamber (11) to the mortise (121), the prefabricated abutment (2) being pre-fitted to the upstream chamber (111), the prefabricated abutment translating relative to the mortise such that a portion of the abutment (21) translates from the upstream chamber (111) into the downstream chamber (112), the at least a portion of the tenon (22) translating from the upstream chamber (111) into the mortise (121).
7. The track support assembly (100) of claim 6, wherein there are two mortise portions (12), and in a first direction, the two mortise portions (12) are located on both sides of the downstream cavity (112), respectively, the first direction being perpendicular to a translation direction of the abutment (21) and perpendicular to a vertical direction.
8. The track support assembly (100) of claim 7, wherein two of the tenon portions (22) are respectively located at two sides of the pier stud (21), and the two tenon portions (22) and the two mortise portions (12) are respectively matched with mortise and tenon joints.
9. The track support assembly (100) of claim 8, wherein the two tongue portions (22) are identical in structure and the prefabricated pier stud (2) is of a centrosymmetric structure, and the two tongue portions (12) are identical in structure and are arranged axisymmetrically with respect to a centerline (L) of the downstream cavity (112).
10. The track support assembly (100) of claim 9, wherein the direction of translation of the abutment (21) from the upstream cavity (111) to the downstream cavity (112) is defined as a back-to-front direction, the front surface of the dovetail (22) being flush with the front surface of the abutment (21), the rear surface of the dovetail (22) being flush with the rear surface of the abutment (21).
11. The track support assembly (100) of claim 10, wherein the extension length of the downstream cavity (112) in the front-rear direction is equal to or greater than the extension length of the abutment (21) in the front-rear direction, and the extension length of the mortise cavity (121) in the front-rear direction is equal to or greater than the extension length of the tenon portion (22) in the front-rear direction.
12. The track support assembly (100) of claim 10, wherein the pier stud (21) is a square stud and the dovetail (22) is a square block.
13. The track support assembly (100) according to claim 2, wherein the prefabricated abutment (1) has a support structure (13) thereon, the support structure (13) being adapted to support a pushing mechanism (82) and to provide a reaction force to the pushing mechanism (82), the pushing mechanism (82) being adapted to drive the prefabricated abutment (2) in translation.
14. The track support assembly (100) of claim 13, wherein the support structure (13) is a recess and is formed within the sink (11) with an open top.
15. A track (1000), comprising: track beam (200) and track support assembly (100) according to any of claims 2-14, the track beam (200) being erected on the pier stud (21).
16. A rail transit system (10000), characterized by comprising: train (2000) and a track (1000) according to claim 15, the train (2000) running along the track (1000).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574280.XA CN112144328B (en) | 2019-06-28 | 2019-06-28 | Rail support assembly, method of assembling the same, and rail transit system |
| PCT/CN2020/098150 WO2020259597A1 (en) | 2019-06-28 | 2020-06-24 | Rail support assembly and assembly method therefor, and rail and rail transit system |
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| CN201910574280.XA CN112144328B (en) | 2019-06-28 | 2019-06-28 | Rail support assembly, method of assembling the same, and rail transit system |
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| CN112144328B true CN112144328B (en) | 2023-09-05 |
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| WO (1) | WO2020259597A1 (en) |
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| CN113732626B (en) * | 2021-08-19 | 2024-03-15 | 上海建工（江苏）钢结构有限公司 | Manufacturing method of X-shaped waist cylindrical structure |
| CN114517535B (en) * | 2022-01-18 | 2022-09-06 | 中交第四公路工程局有限公司 | Assembled column base node quick-connection structure |
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| CN112144328A (en) | 2020-12-29 |
| WO2020259597A1 (en) | 2020-12-30 |
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