CN218562100U - Double-layer highway-railway dual-purpose approach bridge cast-in-place box girder assembling support - Google Patents
Double-layer highway-railway dual-purpose approach bridge cast-in-place box girder assembling support Download PDFInfo
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- CN218562100U CN218562100U CN202222771010.8U CN202222771010U CN218562100U CN 218562100 U CN218562100 U CN 218562100U CN 202222771010 U CN202222771010 U CN 202222771010U CN 218562100 U CN218562100 U CN 218562100U
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Abstract
The utility model discloses a dual-purpose approach bridge cast-in-place case roof beam prefabricated support of double-deck highway railway, its vertical erect in the highway roof beam template that is located the top and be located between the railway roof beam of below, the prefabricated support includes: the upright post frames are erected below the highway beam template at intervals along the length direction of the railway beam and positioned between two adjacent highway frame piers, and any upright post frame comprises a plurality of upright posts which are connected in a parallel mode to form a frame structure; any upright post adjacent to the highway frame pier is fixedly connected with the railway beam through an embedded part, and the rest upright posts are placed on the railway beam through connecting pieces. The utility model discloses only set up the built-in fitting in the position of highway frame mound, pass through the built-in fitting with the other stand of highway frame mound and be connected with the railway roof beam, all the other stands pass through the connecting piece and rest in on the railway roof beam, the built-in fitting quantity on the railway roof beam that has significantly reduced reduces, reduces the risk that built-in fitting and railway roof beam have the reinforcing bar conflict certainly, has reduced follow-up work of demolising simultaneously.
Description
Technical Field
The utility model relates to a cast-in-place case roof beam of dual-purpose approach bridge of double-deck highway railway builds technical field. More specifically speaking, the utility model relates to a two-purpose approach bridge cast-in-place box girder prefabricated support of double-deck highway railway.
Background
Along with the large-scale development of the construction of domestic highway and railway dual-purpose bridges, the form of a double-layer approach bridge structure is more and more, the lower layer of the approach bridge structure is a railway beam, the upper layer of the approach bridge structure is a highway beam, and the construction of the highway beam is completed after the construction of the railway beam, so that a support structure needs to be arranged on the railway beam in a cast-in-place mode, and an embedded part is usually required to be arranged on the railway beam in the support structure, so that the support upright posts can conveniently take root, and the integral stability of the support structure is ensured; however, the number of embedded parts of the stand columns of the support is large, embedded steel bars are complex and easily conflict with steel bars of a railway beam structure, the railway beam structure is affected, meanwhile, the embedding workload is large, the phenomena of mistaken embedding, missing embedding and the like are easy to occur, and in addition, a large amount of dismantling work is carried out in the later period, so that the construction progress is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses still another purpose provides a cast-in-place box girder prefabricated support of dual-purpose approach of double-deck highway-railway to solve the prior art support and set up the in-process and appear that the built-in fitting is in large quantity, influence railway girder structure, embedding work load is big, influences the technical problem of construction progress.
In order to realize the basis of these objects and other advantages of the utility model provides a cast-in-place case roof beam prefabricated support of dual-purpose approach bridge of double-deck highway railway, its vertical erect be located the highway roof beam template of top and be located between the railway roof beam of below, the prefabricated support includes:
the upright post frames are erected below the highway beam template at intervals along the length direction of the railway beam and are positioned between two adjacent highway frame piers, any upright post frame comprises a plurality of upright posts which are connected in a parallel connection mode to form a frame structure, any upright post is vertically arranged, and the top of the upright post is in contact with the bottom surface of the highway beam template through a support frame;
the bottom of any upright column adjacent to the highway frame pier is fixedly connected with the railway beam through an embedded part, and the rest upright columns are placed on the top surface of the railway beam through connecting pieces.
Preferably, the support frame comprises:
a plurality of distribution beams arranged at intervals along the length direction of the railway beam, wherein any distribution beam is horizontally arranged below the highway beam template along the width direction of the railway beam and is contacted with the bottom surface of the highway beam template;
the Bailey beams are distributed below the distribution beams and are in contact with the distribution beams, and the Bailey beams horizontally cover the bottom surface of the highway beam template;
the main cross beams are arranged at intervals along the length direction of the railway beam, any main cross beam is horizontally arranged along the width direction of the railway beam, the top surface of any main cross beam is in contact with the Bailey beam, and the bottom surface of any main cross beam is in contact with the top of the upright column positioned right below the Bailey beam.
Preferably, any upright post fixedly connected with the railway beam through the embedded part is also detachably connected with the adjacent road frame pier through the wall connecting part.
Preferably, the connecting piece includes a plurality of pad beams, and it sets up along the length direction interval of railway roof beam, arbitrary pad beam along the width direction level setting of railway roof beam, the top surface of arbitrary pad beam and the bottom contact of the stand that is located directly over it, the bottom surface level of pad beam is equipped with the backing plate, be equipped with concrete layer between backing plate and the railway roof beam.
Preferably, the upper surface of the concrete layer is provided with notches.
Preferably, the two sides of the backing plate horizontally extend out of the outside of the backing beam, a plurality of stop blocks are arranged in the area, located outside the backing beam, of the backing plate, the bottom of any stop block is fixedly connected with the backing plate, and the inner side wall of the stop block is fixedly connected with the outer side wall of the backing beam.
Preferably, the outside of any stand still is equipped with the bracing, the one end of bracing can be dismantled with the lateral wall of the stand that corresponds and be connected, and the other end slant is upwards dismantled with the bottom of adjacent main beam and is connected.
Preferably, the lower end of any one of the columns is in a tree root shape.
The utility model discloses at least, include following beneficial effect:
1. the utility model discloses only set up the built-in fitting in the position of highway frame mound, connect the stand by highway frame mound with the railway roof beam through the built-in fitting, the rest stands are laid on the railway roof beam through the connecting piece, have greatly reduced the built-in fitting quantity on the railway roof beam, reduce the risk that built-in fitting and railway roof beam have the reinforcing bar conflict by oneself, reduced the follow-up work of demolising simultaneously, cost reduction and benefit increase achievement is showing;
2. the utility model arranges the support frame between the highway beam template and the upright post frame, which can improve the rigidity of the support frame and simultaneously share the downward load of the highway beam, thereby ensuring the stability of the whole support frame;
3. the utility model discloses a link wall spare and connect column frame and highway frame mound and form wholly, further improved the holistic steadiness of support.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic side structural view of a double-deck highway-railway dual-purpose approach bridge cast-in-place box girder fabricated support according to an embodiment of the present invention;
FIG. 2 is a schematic front view of the assembled bracket of the above embodiment;
fig. 3 is a schematic structural diagram of the connecting piece in the above embodiment.
The specification reference numbers indicate:
1. the system comprises upright columns, 2, parallel connection, 3, embedded parts, 4, cushion beams, 5, wall connecting parts, 6, inclined struts, 7, highway frame piers, 8, cushion plates, 9, stop blocks, 10, highway beam templates, 11, railway beams, 12, main beams, 13, distribution beams, 14 and Bailey beams.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, the utility model provides a cast-in-place case roof beam prefabricated support of dual-purpose approach bridge of double-deck highway railway, its vertical erect be located the highway roof beam template 10 of top and be located between the railway roof beam 11 of below, the prefabricated support includes:
the upright post frames are erected below the highway beam template 10 at intervals along the length direction of the railway beam 11 and are positioned between two adjacent highway frame piers 7, any upright post frame comprises a plurality of upright posts 1 which are connected into a frame structure through parallel links 2, any upright post 1 is vertically arranged, and the top of the upright post 1 is in contact with the bottom surface of the highway beam template 10 through a support frame;
the bottom of any upright post 1 adjacent to the highway frame pier 7 is fixedly connected with the railway beam 11 through an embedded part 3, and the rest upright posts 1 are placed on the top surface of the railway beam 11 through connecting pieces.
In the above technical solution, as shown in fig. 1, the upright 1 and the parallel 2 are detachably connected, the upright frame can be assembled on the post-processing site and then transported to the railway beam 11, and the upright frame is erected at intervals along the length direction of the railway beam 11, and the length dimensions of the plurality of upright frames can be the same or different; after the erection of the upright post frame is finished, connecting an upright post 1 adjacent to a highway frame pier 7 on the upright post frame with an embedded part 3 on a railway beam 11, wherein the embedded part 3 consists of a steel plate and a bolt, the bolt is embedded on the railway beam 11 in advance, the steel plate is welded with the bottom of the upright post 1, bolt holes are formed in the periphery of the steel plate, the steel plate is connected with the bolt through a nut, and the embedded part 3 is used for preliminarily fixing the position of the upright post frame; other upright columns 1 are directly placed on the top surface of a railway beam 11 through connecting pieces to reduce pre-embedding work, then a support frame is installed at the top of an upright column frame, a highway beam template 10 is laid on the support frame, the highway beam template 10 is connected with a highway frame pier 7 after being laid, the upright column frame and the support frame are clamped between the highway beam template 10 and the railway beam 11 to ensure the stability of the support frame during erection, meanwhile, the support frame can also share the downward load of the highway beam template 10, and the stability of the support frame is further ensured; the adjacent upright posts 1 are connected into a whole through the parallel connection 2, so that the stability of the support during erection is improved, and a plurality of parallel connections 2 are arranged at intervals along the height direction of the upright posts 1 for further improving the stability; the utility model discloses only set up built-in fitting 3 in the position of highway frame mound 7, connect the stand 1 by highway frame mound 7 with railway roof beam 11 through built-in fitting 3, the rest stands 1 are put on railway roof beam 11 through the connecting piece, have greatly reduced the quantity of built-in fitting 3 on the railway roof beam 11, reduce built-in fitting 3 and railway roof beam 11 and have the risk of reinforcing bar conflict by oneself, reduced the follow-up work of demolising simultaneously, cost reduction and benefit increase achievement are showing; assembled support can be according to on-the-spot actual construction demand, set up a plurality ofly along the length direction of railway roof beam.
In another aspect, the support frame comprises:
a plurality of distribution beams 13 arranged at intervals along the length direction of the railway beam 11, any one of the distribution beams 13 being horizontally arranged below the highway beam formwork 10 along the width direction of the railway beam 11 and contacting the bottom surface of the highway beam formwork 10;
and the main cross beams 12 are arranged at intervals along the length direction of the railway beam 11, any main cross beam 12 is horizontally arranged along the width direction of the railway beam 11, the top surface of any main cross beam 12 is in contact with the Bailey beam 14, and the bottom surface of any main cross beam is in contact with the top of the upright post 1 positioned right below the Bailey beam.
In the technical scheme, the distribution beam 13, the Bailey beam 14 and the main cross beam 12 are sequentially arranged between the highway beam template 10 and the upright post frame from top to bottom, so that on one hand, the rigidity of the assembled support can be improved, on the other hand, when the highway beam is poured, the support frame can disperse the downward load of the highway beam, and the integral stability of the assembled support is ensured.
In another technical scheme, any upright post 1 fixedly connected with a railway beam 11 through an embedded part 3 is also detachably connected with an adjacent road frame pier 7 through a wall connecting part 5.
In this technical scheme, the stand 1 that is located the stand outside is connected with highway frame mound 7 through linking wall spare 5 to be connected the stand and form wholly with highway frame mound 7, further improve the holistic steadiness of stand.
In another technical solution, as shown in fig. 3, the connecting member includes a plurality of pad beams 4, which are arranged at intervals along the length direction of the railway beam 11, any pad beam 4 is horizontally arranged along the width direction of the railway beam 11, the top surface of any pad beam 4 contacts with the bottom of the upright post 1 directly above the top surface, a pad plate 8 is horizontally arranged on the bottom surface of the pad beam 4, and a concrete layer is arranged between the pad plate 8 and the railway beam 11.
In the technical scheme, the upright post 1 is placed on the top surface of the railway beam 11 through the pad beam 4, so that the contact area between the upright post 1 and the railway beam 11 can be increased, the lower part of the pad beam 4 is leveled through the pad plate 8 and a concrete layer, the levelness of the pad beam 4 is ensured, and the stability of the erection of the upright post frame is improved.
In another technical scheme, the upper surface of the concrete layer is provided with notches. In this technical scheme, the carving groove is used for increasing the coefficient of friction between backing plate 8 and the concrete layer, makes the sufficient support horizontal force that resists the wind load and arouse of frictional force, guarantees the steadiness of stand 1.
In another technical scheme, two sides of the backing plate 8 horizontally extend out of the backing beam 4, a plurality of stop blocks 9 are arranged in the area, located outside the backing beam 4, of the backing plate 8, the bottom of any stop block 9 is fixedly connected with the backing plate 8, and the inner side wall of the backing plate is abutted to the backing beam 4. In the technical scheme, a stop block 9 is welded between the pad beam 4 and the pad plate 8 and used for increasing horizontal limiting measures and ensuring the horizontal constraint of the upright post 1.
In another technical scheme, the outside of any upright post 1 is further provided with an inclined strut 6, one end of the inclined strut 6 is detachably connected with the outer side wall of the corresponding upright post 1, and the other end of the inclined strut is obliquely and upwardly detachably connected with the bottom of the adjacent main cross beam 12.
In the technical scheme, the inclined strut 6 is arranged outside the upright post 1 and connected with the main cross beam 12, so that the overall stability of the support can be improved, the support can be conveniently mounted and dismounted due to the detachable connection, the turnover utilization rate of the support is improved, and the material cost of the support is reduced; and inclined struts 6 can be arranged between two parallel links 2 between adjacent upright posts 1 so as to further improve the overall stability of the upright post frame.
In another technical scheme, the lower end of any upright post 1 is in a tree root shape. In this technical scheme, the lower extreme of stand 1 is the root form, and firm effect is better.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cast-in-place case roof beam prefabricated support of dual-purpose approach bridge of double-deck highway railway, its vertical frame is located between the highway roof beam template of top and the railway roof beam that is located the below, its characterized in that, the prefabricated support includes:
the upright post frames are erected below the highway beam template at intervals along the length direction of the railway beam and are positioned between two adjacent highway frame piers, any upright post frame comprises a plurality of upright posts which are connected into a frame structure in a parallel mode, any upright post is vertically arranged, and the top of the upright post is in contact with the bottom surface of the highway beam template through a support frame;
the bottom of any upright column adjacent to the highway frame pier is fixedly connected with the railway beam through an embedded part, and the rest upright columns are placed on the top surface of the railway beam through connecting pieces.
2. The fabricated support for the cast-in-place box girder of the double-deck highway and railway dual-purpose approach bridge of claim 1, wherein the support frame comprises:
a plurality of distribution beams arranged at intervals along the length direction of the railway beam, wherein any distribution beam is horizontally arranged below the highway beam template along the width direction of the railway beam and is contacted with the bottom surface of the highway beam template;
the Bailey beams are distributed below the distribution beams and are in contact with the distribution beams, and the Bailey beams horizontally cover the bottom surface of the highway beam template;
the main cross beams are arranged at intervals along the length direction of the railway beam, any main cross beam is horizontally arranged along the width direction of the railway beam, the top surface of any main cross beam is in contact with the Bailey beam, and the bottom surface of any main cross beam is in contact with the top of the stand column positioned right below the Bailey beam.
3. The assembly support for the cast-in-place box girder of the double-layer highway-railway dual-purpose approach bridge as claimed in claim 1, wherein any upright post fixedly connected with a railway girder through an embedded part is also detachably connected with an adjacent highway frame pier through a wall connecting part.
4. The assembly bracket for the cast-in-place box girder of the double-deck highway and railway dual-purpose approach bridge as claimed in claim 1, wherein the connecting member comprises a plurality of pad beams which are arranged at intervals along the length direction of the railway beam, any pad beam is horizontally arranged along the width direction of the railway beam, the top surface of any pad beam is in contact with the bottom of the upright column positioned right above the pad beam, a pad plate is horizontally arranged on the bottom surface of the pad beam, and a concrete layer is arranged between the pad plate and the railway beam.
5. The fabricated bracket for the cast-in-place box girder of the double-deck highway and railway dual-purpose approach bridge of claim 4, wherein the upper surface of the concrete layer is provided with notches.
6. The assembly bracket for the cast-in-place box girder of the double-deck highway and railway dual-purpose approach bridge as claimed in claim 4, wherein two sides of the backing plate horizontally extend out of the outside of the pad beam, a plurality of stoppers are arranged on the area of the backing plate outside the pad beam, the bottom of any stopper is fixedly connected with the backing plate, and the inner side wall is fixedly connected with the outer side wall of the pad beam.
7. The assembly support for the cast-in-place box girder of the double-deck highway and railway dual-purpose approach bridge as claimed in claim 2, wherein an inclined strut is further arranged outside any upright post, one end of the inclined strut is detachably connected with the outer side wall of the corresponding upright post, and the other end of the inclined strut is obliquely and upwardly detachably connected with the bottom of the adjacent main cross beam.
8. The fabricated support for the cast-in-place box girder of the double-layer highway and railway dual-purpose approach bridge as recited in claim 1, wherein the lower end of any upright post is in a tree root shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771010.8U CN218562100U (en) | 2022-10-21 | 2022-10-21 | Double-layer highway-railway dual-purpose approach bridge cast-in-place box girder assembling support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222771010.8U CN218562100U (en) | 2022-10-21 | 2022-10-21 | Double-layer highway-railway dual-purpose approach bridge cast-in-place box girder assembling support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218562100U true CN218562100U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222771010.8U Active CN218562100U (en) | 2022-10-21 | 2022-10-21 | Double-layer highway-railway dual-purpose approach bridge cast-in-place box girder assembling support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218562100U (en) |
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2022
- 2022-10-21 CN CN202222771010.8U patent/CN218562100U/en active Active
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