CN218147854U - Rigid frame bridge closure pushing modular reaction frame structure - Google Patents
Rigid frame bridge closure pushing modular reaction frame structure Download PDFInfo
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- CN218147854U CN218147854U CN202222554988.9U CN202222554988U CN218147854U CN 218147854 U CN218147854 U CN 218147854U CN 202222554988 U CN202222554988 U CN 202222554988U CN 218147854 U CN218147854 U CN 218147854U
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Abstract
The utility model discloses a rigid frame bridge closure pushing modular reaction frame structure, which comprises a plurality of reaction frame structural units distributed in an array, wherein each reaction frame structural unit comprises a steel box girder sleeve, a pushing end seat plate is fixedly installed at the front end of the steel box girder sleeve, a pushing jack is fixedly installed at the front end surface of the pushing end seat plate, and the telescopic end of the pushing jack and the rear end of the steel box girder sleeve are respectively fixedly butted with corresponding pre-buried seat plates; in the vertical plane, at least one group of vertical hydraulic telescopic rods which are arranged in a crossed manner is arranged between the upper steel box girder sleeve and the lower steel box girder sleeve; in the horizontal plane, at least one group of transverse hydraulic telescopic rods which are arranged in a cross mode are arranged between the adjacent steel box girder sleeves. The utility model is of modular design, convenient installation and good adaptability to different bridges; the stability of the whole structure can be effectively ensured; after the pushing of the counterforce frame is finished, the counterforce frame can be conveniently detached, so that different bridges can be repeatedly used.
Description
Technical Field
The utility model relates to a bridge construction technical field specifically is a rigid frame bridge closes dragon and pushes away modularization reaction frame structure.
Background
Traditional top pushes away the counterforce frame and closes a mouthful center and will counter force frame symmetry and divide two halves processing, has increased the degree of difficulty of installation jack, and the counter force frame transversely produces deformation displacement easily when pushing away, and counter force frame lateral stability is poor, and the jack is very difficult to be controlled on a line during the top pushes away, pushes away that the effect is poor and safe risk is high. In order to solve the problems, the Chinese utility model patent (grant publication No. CN 205975381U, grant publication No. 2017.02.22) discloses a pushing reaction frame structure for connecting the closure section of a rigid frame bridge.
However, the above solutions have some structural defects, and the adaptability of the solutions to pushing construction of different bridges is relatively poor, and particularly in the pushing construction of a curved bridge, it is difficult to well offset the component force of the pushing reaction force in the radial direction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rigid frame bridge closes to dragon and pushes away modularization reaction frame structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a rigid frame bridge closure pushing modular reaction frame structure comprises a plurality of reaction frame structural units distributed in an array mode, wherein each reaction frame structural unit comprises a steel box girder sleeve, a pushing end seat plate is fixedly installed at the front end of each steel box girder sleeve, a pushing jack is fixedly installed on the front end face of each pushing end seat plate, and the telescopic end of each pushing jack and the rear end of each steel box girder sleeve are fixedly butted with corresponding embedded seat plates respectively;
in a vertical plane, at least one group of vertical hydraulic telescopic rods which are arranged in a crossed manner is arranged between the upper steel box girder sleeve and the lower steel box girder sleeve, and two ends of each vertical hydraulic telescopic rod are respectively connected with the outer side wall of the corresponding steel box girder sleeve in a rotating fit manner;
in a horizontal plane, at least one group of transverse hydraulic telescopic rods which are in cross arrangement is arranged between adjacent steel box girder sleeves, and two ends of each transverse hydraulic telescopic rod are respectively connected with the outer side wall of the corresponding steel box girder sleeve in a rotating fit manner.
Each reaction frame structure unit is butted by a vertical hydraulic telescopic rod and a horizontal hydraulic telescopic rod, so that the stability of the whole structure is ensured; in specific application, the vertical hydraulic telescopic rod applies thrust which has a stretching trend, so that the gravity of the upper reaction frame structure unit is offset.
Preferably, the steel box beam sleeve comprises a steel box beam outer sleeve and a steel box beam inner sleeve, the steel box beam inner sleeve is inserted into the front end of the steel box beam outer sleeve, and the steel box beam outer sleeve and the steel box beam inner sleeve are fixedly connected through a plurality of fasteners;
the pushing end seat plate is fixedly arranged at the front end of the inner sleeve of the steel box girder. Structural design like this, before locking is fixed, steel box girder inner skleeve activity cartridge is in steel box girder outer skleeve, conveniently adjusts the telescopic length of steel box girder to adapt to the closure mouth of different length.
Preferably, an end stiffening plate is welded and fixed between the pushing end seat plate and the outer side wall of the steel box girder inner sleeve;
an end stiffening plate is also fixedly welded between the outer side wall of the rear end of the steel box girder outer sleeve and the embedded base plate.
Preferably, the embedded base plate is fixedly connected with an end embedded anchoring steel bar embedded in the segment box girder.
Preferably, the outer side walls of the peripheries of the outer sleeves of the steel box girders, which are close to the end parts, are uniformly distributed and fixed with first lug plate seats, and the outer side walls of the peripheries of the inner sleeves of the steel box girders, which are close to the front ends, are uniformly distributed and fixed with second lug plate seats;
the two groups of vertical hydraulic telescopic rods are arranged, the end part of one group of vertical hydraulic telescopic rods is in rotating fit connection with the first lug plate seat at the front end, and the other end of the group of vertical hydraulic telescopic rods is in rotating fit connection with the first lug plate seat at the corresponding position at the rear end;
the end part of the other group of vertical hydraulic telescopic rods is connected with the first lug plate seat at the front end in a rotating fit mode, and the other end of the group of vertical hydraulic telescopic rods is connected with the second lug plate seat at the corresponding position in a rotating fit mode.
Preferably, the transverse hydraulic telescopic rod is provided with a group, the end part of the transverse hydraulic telescopic rod is connected with the first ear plate seat at the rear end in a rotating matching mode, and the other end of the transverse hydraulic telescopic rod is connected with the second ear plate seat at the corresponding position in a rotating matching mode.
Preferably, the jacking jack is of the hydraulic type.
Preferably, the rear end of the steel box girder sleeve and the telescopic end of the pushing jack can be fixedly butted with the corresponding embedded seat plate through spherical supports.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is of modular design, convenient installation and good adaptability to different bridges; each reaction frame structure unit is butted by adopting a vertical hydraulic telescopic rod and a transverse hydraulic telescopic rod, so that the stability of the whole structure is effectively ensured; after the pushing of the counterforce frame is finished, the counterforce frame can be conveniently detached, so that different bridges can be repeatedly used.
Drawings
FIG. 1 is a schematic side view of a rigid frame bridge closure pushing modular reaction frame structure;
FIG. 2 is a schematic top view of a rigid frame bridge closure pushing modular reaction frame structure;
FIG. 3 isbase:Sub>A structural schematic diagram ofbase:Sub>A section A-A ofbase:Sub>A rigid frame bridge closure pushing modular reaction frame structure;
fig. 4 is a schematic view of a rigid frame bridge closure pushing modular reaction frame structure applied to a curved bridge in a top view.
In the figure: 100-reaction frame structural unit, 200-segment box girder, 201-embedded base plate, 202-end embedded anchoring steel bar, 300-fastener, 400-end stiffening plate, 1-steel box girder outer sleeve, 11-first ear plate seat, 2-steel box girder inner sleeve, 21-second ear plate seat, 3-pushing end base plate, 4-pushing jack, 5-vertical hydraulic telescopic rod and 6-transverse hydraulic telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-2, a rigid frame bridge closure pushing modular reaction frame structure comprises a plurality of reaction frame structure units 100 distributed in an array manner, wherein each reaction frame structure unit 100 comprises a steel box girder sleeve, a pushing end seat plate 3 is fixedly mounted at the front end of each steel box girder sleeve, a pushing jack 4 is fixedly mounted at the front end surface of each pushing end seat plate 3, and the telescopic end of each pushing jack 4 and the rear end of each steel box girder sleeve are respectively fixedly butted with corresponding embedded seat plates 201; the embedded base plates 201 are fixedly installed on the end surfaces of the corresponding segment box girders 200.
In a vertical plane, at least one group of vertical hydraulic telescopic rods 5 which are arranged in a crossed manner is arranged between the upper steel box girder sleeve and the lower steel box girder sleeve, and two ends of each vertical hydraulic telescopic rod 5 are respectively connected with the outer side wall of the corresponding steel box girder sleeve in a rotating fit manner;
in the horizontal plane, be provided with at least a set of horizontal hydraulic telescoping rod 6 that is cross arrangement between the adjacent steel box girder sleeve, the both ends of horizontal hydraulic telescoping rod 6 are connected with the steel box girder sleeve lateral wall normal running fit that corresponds respectively.
The utility model discloses a theory of operation is: the reaction frame structure unit 100 takes a customized steel box girder sleeve as a main body, the rear end of the steel box girder sleeve is fixed with an embedded seat plate 201 on a segment box girder 200, the front end of the steel box girder sleeve is fixedly connected with a pushing end seat plate 3 and a pushing jack 4 in sequence, the telescopic end of the pushing jack 4 is fixed with the embedded seat plate 201 on another segment box girder 200, and pushing operation at a closure opening is realized under the driving of the pushing jack 4;
after the pushing is finished, a rigid framework is adopted to lock the closure opening, then the reaction frame structure unit 100 and the transverse hydraulic telescopic rod 6 on the upper layer are dismantled, then the vertical hydraulic telescopic rod 5 is dismantled, and then the reaction frame structure unit 100 and the transverse hydraulic telescopic rod 6 on the lower layer are dismantled;
and finally, carrying out cast-in-place construction of the closure opening.
As a further specific scheme, the steel box beam sleeve comprises a steel box beam outer sleeve 1 and a steel box beam inner sleeve 2, the steel box beam inner sleeve 2 is inserted into the front end of the steel box beam outer sleeve 1, and the steel box beam outer sleeve 1 and the steel box beam inner sleeve 2 are fixedly connected through a plurality of fasteners 300; the pushing end seat plate 3 is fixedly arranged at the front end of the steel box girder inner sleeve 2.
Structural design like this, before the locking is fixed, steel box girder inner skleeve 2 activity cartridge is in steel box girder outer skleeve 1, conveniently adjusts the telescopic length of steel box girder to adapt to the mouth that closes of different length.
Wherein, an end stiffening plate 400 is welded and fixed between the pushing end seat plate 3 and the outer side wall of the steel box girder inner sleeve 2; an end stiffening plate 400 is also welded and fixed between the outer side wall of the rear end of the steel box girder outer sleeve 1 and the embedded base plate 201. The structural stability of the reaction frame structural unit 100 is further ensured.
The embedded base plate 201 is fixedly connected with an end embedded anchor steel bar 202 embedded in the segment box girder 200.
Specifically, the outer side walls of the peripheries of the outer sleeves 1 of the steel box girders, which are close to the end parts, are respectively and fixedly provided with a first lug plate seat 11, and the outer side walls of the peripheries of the inner sleeves 2 of the steel box girders, which are close to the front ends, are respectively and fixedly provided with a second lug plate seat 21;
two groups of vertical hydraulic telescopic rods 5 are arranged, wherein the end part of one group of vertical hydraulic telescopic rods 5 is in rotating fit connection with the first lug plate seat 11 at the front end, and the other end of the group of vertical hydraulic telescopic rods 5 is in rotating fit connection with the first lug plate seat 11 at the corresponding position at the rear end;
the end part of the other group of vertical hydraulic telescopic rods 5 is connected with the first ear plate seat 11 at the front end in a rotating fit manner, and the other end of the group of vertical hydraulic telescopic rods 5 is connected with the second ear plate seat 21 at the corresponding position in a rotating fit manner.
Wherein, horizontal hydraulic telescoping rod 6 is provided with a set ofly, and the tip of horizontal hydraulic telescoping rod 6 is connected with the 11 normal running fit of first otic placode seats of rear end, and the other end of horizontal hydraulic telescoping rod 6 is connected with the second otic placode seat 21 normal running fit that corresponds the position. The jacking jack 4 may be in particular of the hydraulic type.
Each reaction frame structure unit 100 is butted by a vertical hydraulic telescopic rod 5 and a horizontal hydraulic telescopic rod 6, so that the stability of the whole structure is ensured; in the specific application, the vertical hydraulic telescopic rods 5 exert a thrust force, which has a tendency to stretch, so as to counteract the gravity of the upper reaction frame structural unit 100.
As another embodiment, the difference from the previous embodiment is that the rear end of the steel box girder sleeve and the telescopic end of the jacking jack 4 can be fixed in a butt joint with the corresponding embedded seat plate 201 through a spherical support. The embodiment is suitable for pushing construction of the curved bridge.
Referring to fig. 3, in the forward direction, the horizontal hydraulic telescopic rod 6 can provide stretching drive or contracting drive in the curved bridge closure pushing construction, while the vertical hydraulic telescopic rod 5 applies thrust with a stretching tendency, so as to counteract the gravity of the upper reaction frame structure unit 100.
Referring to fig. 4, in the pushing construction of the curved bridge, the reaction frame at the inner side of the curve will be subjected to eccentric pushing reaction force, so that the transverse hydraulic telescopic rod 6 is required to apply thrust force to offset the component force of the pushing reaction force along the radial direction, thereby ensuring the overall stability of the structure; the reaction frame outside the curve needs to apply pulling force to the transverse hydraulic telescopic rod 6 in the same way so as to offset the component force of the pushing reaction force along the radial direction.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for the convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
Claims (8)
1. The utility model provides a rigid frame bridge closes a dragon and pushes away modularization reaction frame structure, includes a plurality of reaction frame constitutional unit (100) that are array distribution, its characterized in that: the reaction frame structural unit (100) comprises a steel box girder sleeve, a pushing end seat plate (3) is fixedly mounted at the front end of the steel box girder sleeve, a pushing jack (4) is fixedly mounted on the front end face of the pushing end seat plate (3), and the telescopic end of the pushing jack (4) and the rear end of the steel box girder sleeve are respectively fixedly butted with corresponding embedded seat plates (201);
in a vertical plane, at least one group of vertical hydraulic telescopic rods (5) which are arranged in a crossed manner is arranged between the upper steel box girder sleeve and the lower steel box girder sleeve, and two ends of each vertical hydraulic telescopic rod (5) are respectively connected with the outer side wall of the corresponding steel box girder sleeve in a rotating fit manner;
in a horizontal plane, at least one group of transverse hydraulic telescopic rods (6) which are arranged in a cross mode are arranged between adjacent steel box girder sleeves, and two ends of each transverse hydraulic telescopic rod (6) are connected with the outer side wall of the corresponding steel box girder sleeve in a rotating fit mode.
2. The rigid frame bridge closure pushing modular reaction frame structure of claim 1, wherein: the steel box girder sleeve comprises a steel box girder outer sleeve (1) and a steel box girder inner sleeve (2), the steel box girder inner sleeve (2) is inserted at the front end of the steel box girder outer sleeve (1), and the steel box girder outer sleeve (1) and the steel box girder inner sleeve (2) are fixedly connected through a plurality of fasteners (300);
the pushing end seat plate (3) is fixedly arranged at the front end of the steel box girder inner sleeve (2).
3. The rigid frame bridge closure pushing modular reaction frame structure of claim 2, wherein: an end stiffening plate (400) is fixedly welded between the pushing end seat plate (3) and the outer side wall of the steel box girder inner sleeve (2);
an end stiffening plate (400) is also welded and fixed between the outer side wall of the rear end of the steel box girder outer sleeve (1) and the embedded seat plate (201).
4. The rigid frame bridge closure pushing modular reaction frame structure of claim 3, wherein: the embedded base plate (201) is fixedly connected with an end embedded anchoring steel bar (202) embedded in the segment box girder (200).
5. The rigid frame bridge closure pushing modular reaction frame structure of claim 2, wherein: the outer side walls of the peripheries, close to the end parts, of the outer sleeves (1) of the steel box girders are respectively and fixedly provided with a first lug plate seat (11), and the outer side walls of the peripheries, close to the front ends, of the inner sleeves (2) of the steel box girders are respectively and fixedly provided with a second lug plate seat (21);
the two groups of vertical hydraulic telescopic rods (5) are arranged, the end part of one group of vertical hydraulic telescopic rods (5) is in rotating fit connection with the first ear plate seat (11) at the front end, and the other end of the group of vertical hydraulic telescopic rods (5) is in rotating fit connection with the first ear plate seat (11) at the corresponding position at the rear end;
the end part of another group of vertical hydraulic telescopic rods (5) is connected with the first ear plate seat (11) at the front end in a rotating fit manner, and the other end of the group of vertical hydraulic telescopic rods (5) is connected with the second ear plate seat (21) at the corresponding position in a rotating fit manner.
6. The rigid frame bridge closure pushing modular reaction frame structure of claim 5, wherein: the transverse hydraulic telescopic rod (6) is provided with a group, the end part of the transverse hydraulic telescopic rod (6) is connected with the first lug plate seat (11) at the rear end in a rotating fit manner, and the other end of the transverse hydraulic telescopic rod (6) is connected with the second lug plate seat (21) at the corresponding position in a rotating fit manner.
7. The steel frame bridge closure pushing modular reaction frame structure according to any one of claims 1 to 6, wherein: the pushing jack (4) is a hydraulic type piercing jack.
8. The rigid frame bridge closure pushing modular reaction frame structure according to any one of claims 1 to 6, wherein: the rear end of the steel box girder sleeve and the telescopic end of the pushing jack (4) can be fixedly butted with the corresponding embedded seat plate (201) through the spherical support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222554988.9U CN218147854U (en) | 2022-09-26 | 2022-09-26 | Rigid frame bridge closure pushing modular reaction frame structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222554988.9U CN218147854U (en) | 2022-09-26 | 2022-09-26 | Rigid frame bridge closure pushing modular reaction frame structure |
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| Publication Number | Publication Date |
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| CN218147854U true CN218147854U (en) | 2022-12-27 |
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| CN202222554988.9U Active CN218147854U (en) | 2022-09-26 | 2022-09-26 | Rigid frame bridge closure pushing modular reaction frame structure |
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- 2022-09-26 CN CN202222554988.9U patent/CN218147854U/en active Active
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