CN211848647U - Column type combined track structure for track traffic inspection pit section - Google Patents
Column type combined track structure for track traffic inspection pit section Download PDFInfo
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- CN211848647U CN211848647U CN202020341370.2U CN202020341370U CN211848647U CN 211848647 U CN211848647 U CN 211848647U CN 202020341370 U CN202020341370 U CN 202020341370U CN 211848647 U CN211848647 U CN 211848647U
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Abstract
A column type combined track structure for a track traffic inspection pit section sequentially comprises a filling adjusting layer, a prefabricated plate, a connecting part and a steel column from bottom to top, wherein two parallel steel rails are arranged on the steel column, the steel rails are fixed on the steel column through a plurality of fasteners respectively, the connecting part fixes the steel column to the prefabricated plate, and the filling adjusting layer is positioned on a concrete foundation of special construction of civil engineering at the lower part; from this, the utility model has the advantages of construction speed is fast, the construction precision is high, low in labor strength, the aesthetic property is good, the maintenance is maintained conveniently and the operation environment is good, can overcome that cast in situ concrete stand and basis exist intensity of labour big, the efficiency of construction is low, the construction link is many, the construction precision is poor, the aesthetic property is poor, the operation environment is poor and the inconvenient scheduling problem of maintenance.
Description
Technical Field
The utility model relates to a track traffic's track structure technical field especially relates to a track traffic inspection pit is column combination track structure for section.
Background
In the current urban rail transit engineering, the upright column structure and the upright column connecting structure foundation of the upright column type inspection pit section in the vehicle base and the parking garage mostly adopt the cast-in-place concrete form. Such cast-in-place concrete stand and cast-in-place stand basis have a lot of problems, mainly include:
(1) the construction labor intensity is high, the construction efficiency is low, and the construction mold is complex. The cast-in-place column type inspection pit track and substructure foundation can not avoid the disadvantages of cast-in-place concrete structure, such as the problems of multiple types and large quantity of on-site erecting moulds, large using amount of reinforcing steel bars, large binding workload, large on-site concrete pouring workload, large concrete curing workload and the like. And mainly rely on manual work to lay, and the unit is laid the required work shift more under the length, and the construction progress is slow.
(2) The construction precision is poor. The track structure has extremely strict requirements on construction errors, the precision guarantee of the track structure depends on the construction quality of the stand column and the lower foundation, the number of the cast-in-place concrete stand column structure molds is large, the accumulated error is large, and the track precision requirement is difficult to achieve. In addition, the cast-in-place concrete upright posts mainly adopt manual operation, and the construction quality is greatly influenced by individual factors of operation workers.
(3) The aesthetic property is poor. The cast-in-place workload is large in the construction process, and the track parts such as steel rails and fasteners are dirty and inconvenient to clean. And the poor quality of concrete pouring construction in the construction process can cause the conditions of die running, corner falling, honeycomb pitted surface and the like. The adoption of the sectional construction of the stand column can cause the conditions of dislocation of the stand column and the like due to poor construction control, thereby causing the problem of poor integrity and aesthetic property of the stand column.
(4) Maintenance and repair are inconvenient. Traditional concrete stand and foundation structure once only pour the shaping, if take place during the condition such as stand damage, fracture after the operation, stand maintenance is very inconvenient. And as the operation time increases, the line state such as the track gauge and the track direction deformation are larger and exceed the adjustment capability range of the fastener, and the line state cannot be recovered.
(5) The working environment is poor. Traditional cast in situ concrete stand and stand basis are mainly in the cast in situ completion, can cause great dust pollution, and construction operation personnel operational environment is difficult to guarantee, easily influences the operation personnel health.
Therefore, in view of the above-mentioned defects, the designer of the utility model researches and designs a column type combined track structure for track traffic inspection pit section through careful design, theoretical research and a large amount of experiments to overcome many defects existing in the prior cast-in-place concrete column.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a track traffic inspection pit is column combination track structure for district, have that construction speed is fast, construction precision is high, low in labor strength, aesthetic property are good, the maintenance is maintained advantages such as convenient and operation environment is good, can overcome the problem that cast in situ concrete stand inspection pit structure exists.
In order to achieve the above object, the utility model discloses a track traffic inspection pit column combination track structure for section, follow supreme filling adjustment layer, prefabricated plate, adapting unit and the prefabricated steel stand of containing in proper order down, its characterized in that:
the filling adjustment layer is a cast-in-place structure which is continuously poured along the direction of the steel rail, the width of the filling adjustment layer is not less than that of the precast slab, expansion joints are arranged at certain intervals and are filled, and a reinforcing mesh is arranged in the filling adjustment layer; the prefabricated steel upright is fixed to the prefabricated slab by the connecting component, and the filling adjusting layer is positioned on a concrete foundation of the lower civil engineering professional construction; the prefabricated steel upright is provided with two parallel steel rails, and the steel rails are fixed on the prefabricated steel upright through a plurality of fasteners respectively;
the prefabricated steel stand column comprises an upper steel plate, a steel pipe and a lower steel plate, wherein the upper end of the steel pipe is provided with the upper steel plate, the lower end of the steel pipe is provided with the lower steel plate, and the steel pipe, the upper steel plate and the lower steel plate are welded or integrally cast into a whole.
Wherein: the upper steel plate is provided with more than 2 upper through holes, the upper through holes are circular or oval, and the upper through holes of the upper steel plate are used for bolts in the fasteners to penetrate through the holes.
Wherein: when the rail transit system is used for the contact rail power supply system, the prefabricated steel stand column is further provided with the contact rail, the prefabricated steel stand column is further provided with a contact rail mounting support, one side of the upper steel plate perpendicular to the direction of the steel rail is extended outwards, and the contact rail mounting support is fixed on one side of the upper steel plate in an extending mode through a plurality of mounting through holes in the extended position.
Wherein: the upper ribbed plate (1 or more) is additionally arranged between the upper steel plate and the middle steel pipe, the upper ribbed plate, the steel pipe and the steel plate are connected into a whole through welding or integral casting so as to enhance the integral rigidity of the prefabricated steel upright, and the integral installation of the contact rail and the steel rail on the prefabricated steel upright is realized.
Wherein: the lower steel plate is provided with 4 lower through holes which are round or oval and used for the connecting piece to pass through.
Wherein: 4 pieces or more of lower ribbed plates are arranged between the lower steel plate and the middle steel pipe, and the lower ribbed plates are fixed with the steel pipe and the lower steel plate through welding to enhance the rigidity.
Wherein: the steel pipe is polygonal, circular, oval or quadrilateral, the steel pipe is a seamed or seamless steel pipe, the steel pipe is internally ribbed or hollow, the upper steel plate is rectangular, circular or oval, and the lower steel plate is rectangular, circular or oval.
Wherein: the plane of the prefabricated plate is H-shaped, rectangular or frame-shaped, and the section of the prefabricated plate is quadrilateral or concave-convex.
Wherein: the filling adjusting layer is made of fine aggregate concrete, self-compacting concrete or self-leveling mortar.
Wherein: the connecting part is provided with an insulating buffer base plate, the insulating buffer base plate is arranged between the prefabricated plate and the prefabricated steel upright post, the connecting part comprises a bolt and a spring washer, and the bolt penetrates through the through hole of the lower steel plate and is spirally meshed on the prefabricated plate.
As can be seen from the above, the column type combined track structure for track traffic inspection pit section of the present invention has the following effects:
1. by adopting the filling adjusting layer, the prefabricated plate, the connecting component and the steel upright post structure to assemble and combine, the track structure has the advantages of reducing the on-site operation pouring links, reducing the labor intensity, improving the construction precision, accelerating the construction progress and having good aesthetic property.
2. The rail structure has strong feasibility of implementation, and is convenient for maintenance and repair of the column type inspection pit structure after operation.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows a schematic diagram of the column type combined track structure for track traffic inspection pit section of the present invention.
Fig. 2 shows a schematic view of another embodiment of the present invention.
Fig. 3 shows a plan view of the prefabricated panel of the present invention.
Fig. 4 shows a side view of the prefabricated panel of the present invention.
Fig. 5A and 5B show top views of two embodiments of the middle upper steel plate of the present invention.
Fig. 6 shows a top view of the middle and lower steel plates of the present invention.
Detailed Description
Referring to fig. 1 and 2, the utility model discloses a rail transit inspection pit is column combination track structure for section.
The column type combined track structure for the track traffic inspection pit section sequentially comprises a filling adjusting layer 1, a precast slab 2, a connecting part 3 and a steel upright column 4 from bottom to top, wherein two parallel steel rails 6 are arranged on the steel upright column 4, the steel rails 6 are respectively fixed on the steel upright column 4 through a plurality of fasteners 5, the connecting part 3 fixes the steel upright column 4 to the precast slab 2, and the filling adjusting layer 1 is positioned on a concrete foundation 9 of lower civil engineering professional construction.
In another embodiment shown in fig. 2, a contact rail is further arranged on the steel upright 4, and a contact rail mounting bracket 7 is further mounted on the steel upright 4.
The filling adjustment layer 1 is of a cast-in-place structure, the width of the filling adjustment layer is not smaller than that of the precast slab 2, the cast-in-place structure is continuously poured along the direction of the steel rail, expansion joints are arranged at certain intervals and filled, and a reinforcing mesh is preferably configured in the filling adjustment layer 1.
Referring to fig. 3 and 4, the steel column mounting connecting part 21 is embedded in the upper surface of the precast slab 2, and the support tool mounting part 22 is embedded in the side edge, so that the support tool can be mounted in the embedded steel column mounting connecting part 21 or the support tool mounting part 22 when the precast slab 2 is laid, and the precast slab can be erected and adjusted.
In the illustrated embodiment, the steel column 4 may include three parts, i.e., an upper steel plate 41, a steel pipe 42 and a lower steel plate 43, wherein the upper end of the steel pipe 42 is provided with the upper steel plate 41, and the lower end is provided with the lower steel plate 43. In order to effectively increase the overall rigidity of the steel upright 4, the steel tube 42 and the lower steel plate 43 are provided with lower rib plates 44. An upper rib plate 45 is arranged between the steel pipe 42 and the upper steel plate 41.
Referring to fig. 5A, the upper steel plate 41 may be a quadrilateral, and 2 upper through holes 46 are provided at both sides, the upper through holes 46 of the upper steel plate 41 are used for bolts in fasteners to pass through, so that the fasteners are fixed on the upper steel plate 41, and the upper through holes 41 are preferably circular holes.
Referring to fig. 5B, in another embodiment, since the busbar mounting bracket 7 needs to be mounted, one side of the upper steel plate 41 perpendicular to the direction of the steel rail is extended outward, and 4 mounting through holes 47 are provided for mounting the busbar mounting bracket 7 at the extended position, and the mounting through holes 47 are elliptical holes, so that the busbar mounting bracket 7 is fixed to the extended side of the upper steel plate 41, and the busbar 8 and the steel rail 6 are integrally mounted on the steel column 4 through the busbar mounting bracket 7.
Referring to fig. 2, 1 or more upper rib plates 45 are additionally arranged between the upper steel plate 41 and the steel pipe 42 in the middle, and the upper rib plates 45 are fixed with the steel pipe 42 and the upper steel plate 41 by welding to enhance the overall rigidity of the steel column 4.
Referring to fig. 5, the lower steel plate 43 is a quadrilateral, and has 4 lower through holes 48 at four corners, the lower through holes 48 are oval, so that the steel upright 4 has a certain amount of lateral displacement adjustment, and the lower through holes 48 are penetrated by connecting members, so that the steel upright 4 and the prefabricated plate 2 are connected into a whole.
4 pieces of or more than 4 lower rib plates 44 are arranged between the lower steel plate 43 and the middle steel pipe 42, and the lower rib plates 44, the steel pipe 42 and the lower steel plate 43 are fixed by welding to enhance the integral rigidity of the steel upright 4.
The steel tube 42 is positioned in the middle of the steel upright 4, can be polygonal, circular, oval and the like, is preferably in a four-sided shape, can be a seam or seamless steel tube, is preferably a seamless steel tube to improve the stress performance of the steel tube, and can be in a ribbed or hollow form.
The upper steel plate 41 may have a rectangular shape, a circular shape, an oval shape, etc., and the lower steel plate 43 may have a rectangular shape, a circular shape, an oval shape, etc.
The prefabricated panel 2 can be designed to be H-shaped, rectangular, frame-shaped and the like in a plane, and the cross section can be designed to be quadrangular or concave-convex.
The prefabricated slab is internally embedded with components connected with the steel upright posts, and the components can be designed into embedded sleeves, bolts, channels and the like. When the sleeve is pre-embedded, the spiral spike penetrates through the through hole of the steel plate below the steel upright, and then the bolt is screwed into the pre-embedded sleeve in the prefabricated plate, so that the prefabricated plate and the steel upright are connected into a whole. When the channel is pre-buried, the T-shaped bolt head can be adopted to penetrate into the channel, the bolt penetrates through the through hole of the steel plate under the steel upright post, and finally the prefabricated plate and the steel upright post are connected into a whole through the nut. When the bolts are embedded (the threads expose the plate surface), the exposed bolts can penetrate through the mounting holes of the steel plate under the steel upright, and then the prefabricated plate and the steel upright are connected into a whole through the nuts. And 1-2 pairs of steel stand columns are arranged on one prefabricated plate.
Wherein, referring to fig. 1 and 2, the connecting member 3 is provided with an insulating buffer pad 33, and the insulating buffer pad 33 is arranged between the prefabricated slab 2 and the steel upright 4, and plays a role of buffering, preventing the prefabricated slab 2 and the steel upright 4 from being in hard contact, and in addition, provides a certain insulating property. The insulating buffer backing plate 33 has high rigidity, and displacement and rotation of the steel upright post cannot occur in the using process. The insulating buffer backing plate 33 is provided with 4 through holes corresponding to the positions and the sizes of the lower through holes 48 of the lower steel plate 43, and the through holes are in a circular hole form. The size of the insulating buffer backing plate 33 is slightly larger than that of the lower steel plate 43, and the shape of the insulating buffer backing plate is the same as that of the lower steel plate 43 of the steel upright post.
The connecting part 3 comprises a bolt 31 and a spring washer 32, the bolt 31 penetrates through the lower through hole of the lower steel plate and is spirally meshed in the prefabricated plate 2 to play a role in fastening the steel upright, so that the prefabricated plate 2 and the steel upright 4 are connected into a whole, and the spring washer 32 plays a role in preventing looseness of the bolt 31 in the use process.
The filling adjusting layer is made of fine aggregate concrete, self-compacting concrete or self-leveling mortar with good fluidity, and has the functions of filling adjustment and limiting of the precast slabs.
Wherein, the utility model discloses a track traffic inspection pit is column combination track structure's for section construction method mainly contains following two kinds:
the construction method comprises the following steps:
the method comprises the following steps: and (5) binding the steel bars in the filling adjustment layer 1.
Step two: and hoisting the precast slab 2 to a specified position, installing a tool on the top surface or the side of the slab, and supporting and adjusting the precast slab 2 by using the tool to finish the rough paving of the precast slab 2.
Step three: and installing a steel upright post lower buffer backing plate 33.
Step four: and (4) installing the steel upright post 4.
Step five: the template filled with the adjustment layer 1 stands.
Step six: and the combined structure of the precast slab 2 and the steel upright 4 is finely adjusted, so that the elevation and the transverse deviation of the top surface 41 of the steel upright meet the precision requirement.
Step seven: filling and curing the filling adjustment layer 1.
Step eight: and (4) removing the filling adjustment layer 1 template.
Step nine: and installing a steel rail 6 and a fastener 5.
Step ten: fine adjustment of the steel rail 6.
Step eleven: and a contact rail bracket 7 (a contact rail power supply system rail transit system) is installed.
Step twelve: a contact rail 8 (a rail transit system of a contact rail power supply system) is installed.
The second construction method comprises the following steps:
the method comprises the following steps: and (5) binding the steel bars in the filling adjustment layer 1.
Step two: and hoisting the precast slab 2 to a specified position, installing an adjusting tool on the top surface or the side of the slab, and supporting and adjusting the precast slab 2 by using the tool to finish the rough paving of the precast slab 2.
Step three: the template filled with the adjustment layer 1 stands.
Step four: and finely adjusting the precast slab 2 to ensure that the elevation, the transverse deviation and the flatness of the top surface of the precast slab 2 meet the precision requirement.
Step five: filling and curing the filling adjustment layer 1.
Step six: and (4) removing the filling adjustment layer 1 template.
Step seven: and installing a steel upright post lower buffer backing plate 33.
Step eight: and mounting a steel upright post 4 on the precast slab 2.
Step nine: and finely adjusting the steel upright post 4 to ensure that the elevation, the transverse deviation and the verticality of the top surface 41 of the steel upright post meet the precision requirement.
Step ten: and installing a steel rail 6 and a fastener 5.
Step eleven: fine adjustment of the steel rail 6.
Step twelve: and a contact rail bracket 7 (a contact rail power supply system rail transit system) is installed.
Step thirteen: a contact rail 8 (a rail transit system of a contact rail power supply system) is installed.
Therefore, the utility model has the advantages that:
1. by adopting the filling adjusting layer, the prefabricated plate, the connecting component and the steel upright post structure to assemble and combine, the track structure has the advantages of reducing the on-site operation pouring links, reducing the labor intensity, improving the construction precision, accelerating the construction progress and having good aesthetic property.
2. The rail structure has strong feasibility of implementation, and is convenient for maintenance and repair of the column type inspection pit structure after operation.
It is to be understood that the above description and illustrations are exemplary only and are not intended to limit the present disclosure, application, or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention is intended to include any embodiments that fall within the foregoing description and the appended claims.
Claims (10)
1. The utility model provides a track traffic inspection pit column combination track structure for section, supreme filling adjustment layer, prefabricated plate, adapting unit and the prefabricated steel stand of containing in proper order down, its characterized in that:
the filling adjustment layer is a cast-in-place structure which is continuously poured along the direction of the steel rail, the width of the filling adjustment layer is not less than that of the precast slab, expansion joints are arranged at certain intervals and are filled, and a reinforcing mesh is arranged in the filling adjustment layer; the prefabricated steel upright is fixed to the prefabricated slab by the connecting component, and the filling adjusting layer is positioned on a concrete foundation of the lower civil engineering professional construction; the prefabricated steel upright is provided with two parallel steel rails, and the steel rails are fixed on the prefabricated steel upright through a plurality of fasteners respectively;
the prefabricated steel stand column comprises an upper steel plate, a steel pipe and a lower steel plate, wherein the upper end of the steel pipe is provided with the upper steel plate, the lower end of the steel pipe is provided with the lower steel plate, and the steel pipe, the upper steel plate and the lower steel plate are welded or integrally cast into a whole.
2. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the upper steel plate is provided with more than 2 upper through holes, the upper through holes are circular or oval, and the upper through holes of the upper steel plate are used for bolts in the fasteners to penetrate through the holes.
3. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: when the rail transit system is used for the contact rail power supply system, the prefabricated steel stand column is further provided with the contact rail, the prefabricated steel stand column is further provided with a contact rail mounting support, one side of the upper steel plate perpendicular to the direction of the steel rail is extended outwards, and the contact rail mounting support is fixed on one side of the upper steel plate in an extending mode through a plurality of mounting through holes in the extended position.
4. The column type combined track structure for the track traffic inspection pit section according to claim 3, wherein: the upper ribbed plate (1 or more) is additionally arranged between the upper steel plate and the middle steel pipe, the upper ribbed plate, the steel pipe and the steel plate are connected into a whole through welding or integral casting so as to enhance the integral rigidity of the prefabricated steel upright, and the integral installation of the contact rail and the steel rail on the prefabricated steel upright is realized.
5. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the lower steel plate is provided with 4 lower through holes which are round or oval and used for the connecting piece to pass through.
6. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: 4 pieces or more of lower ribbed plates are arranged between the lower steel plate and the middle steel pipe, and the lower ribbed plates are fixed with the steel pipe and the lower steel plate through welding to enhance the rigidity.
7. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the steel pipe is polygonal, circular, oval or quadrilateral, the steel pipe is a seamed or seamless steel pipe, the steel pipe is internally ribbed or hollow, the upper steel plate is rectangular, circular or oval, and the lower steel plate is rectangular, circular or oval.
8. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the plane of the prefabricated plate is H-shaped, rectangular or frame-shaped, and the section of the prefabricated plate is quadrilateral or concave-convex.
9. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the filling adjusting layer is made of fine aggregate concrete, self-compacting concrete or self-leveling mortar.
10. The column type combined track structure for the track traffic inspection pit section according to claim 1, characterized in that: the connecting part is provided with an insulating buffer base plate, the insulating buffer base plate is arranged between the prefabricated plate and the prefabricated steel upright post, the connecting part comprises a bolt and a spring washer, and the bolt penetrates through the through hole of the lower steel plate and is spirally meshed on the prefabricated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020341370.2U CN211848647U (en) | 2020-03-18 | 2020-03-18 | Column type combined track structure for track traffic inspection pit section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020341370.2U CN211848647U (en) | 2020-03-18 | 2020-03-18 | Column type combined track structure for track traffic inspection pit section |
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| CN211848647U true CN211848647U (en) | 2020-11-03 |
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| CN202020341370.2U Active CN211848647U (en) | 2020-03-18 | 2020-03-18 | Column type combined track structure for track traffic inspection pit section |
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