CN109811606B - Ramp reconstruction method for overhead expressway of assembled up-down ramp - Google Patents
Ramp reconstruction method for overhead expressway of assembled up-down ramp Download PDFInfo
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- CN109811606B CN109811606B CN201910232908.8A CN201910232908A CN109811606B CN 109811606 B CN109811606 B CN 109811606B CN 201910232908 A CN201910232908 A CN 201910232908A CN 109811606 B CN109811606 B CN 109811606B
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- ramp
- main road
- overhead
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- reinforced concrete
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000004873 anchoring Methods 0.000 claims abstract description 9
- 230000001133 acceleration Effects 0.000 claims description 9
- 239000004567 concrete Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a ramp reconstruction method of an elevated expressway of an assembled up-down ramp, wherein the elevated expressway is provided with a plurality of anti-collision walls, and comprises a main road elevated frame and a plurality of ramps connected with the main road elevated frame; each anti-collision wall is detachably connected with the elevated expressway; the main road overhead is connected with each ramp by a lap joint structure; a main road overhead reinforced concrete slab and a ramp reinforced concrete slab are respectively arranged on the main road overhead and on each ramp; the main road overhead reinforced concrete slab and the ramp reinforced concrete slab are connected by an anchoring steel rope; the small steel box girders of the main road overhead, the small steel box girders of the ramp and the bridge piers of the overground part of the overhead expressway all adopt prefabricated structures. When the ramp is rebuilt, the ramp can be quickly and completely dismounted and mounted by dismounting the lap joint structure and the anchoring steel rope. The invention can greatly shorten the construction time, reduce the construction cost and achieve the purposes of intensive, green and high efficiency.
Description
Technical Field
The invention relates to the technical field of overhead road construction, in particular to a ramp reconstruction method of an overhead expressway of an assembled up-down ramp.
Background
The existing up-down ramp bears the important function of traffic conversion between the urban elevated expressway and the ground auxiliary road. In the design stage, the up-down ramp is strictly set according to the standard requirements and the traffic flow.
However, factors such as urban expansion, land property change, urban road network structure adjustment and the like can directly influence traffic flow change, so that after the road is built for a plurality of years, the service function and the service area of the expressway are often changed greatly, the positions of the upper ramp and the lower ramp need to be correspondingly adjusted (abandoned and newly built), and a plurality of problems such as repeated construction, resource waste, road blockage and the like are caused.
Therefore, the existing construction technology of the elevated fast on-road and off-road needs to be improved, and the defects of the prior art are overcome.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the present invention provides a ramp reconstruction method for an elevated expressway of an assembled up-down ramp, which can greatly shorten the construction time, avoid the abandonment of the built ramp, reduce the construction cost, and achieve the purposes of intensive, green and high efficiency.
In order to achieve the above purpose, the invention discloses a ramp reconstruction method of an elevated expressway of an assembled up-down ramp, wherein the elevated expressway is provided with a plurality of anti-collision walls, and comprises a main road elevated frame and a plurality of ramps connected with the main road elevated frame.
Wherein, each anti-collision wall is detachably connected with the elevated expressway;
the main road overhead is connected with each ramp through a lap joint structure;
the main road overhead and each ramp are respectively provided with a main road overhead reinforced concrete slab and a ramp reinforced concrete slab;
the main road overhead reinforced concrete slab and the ramp reinforced concrete slab are connected by an anchor steel cable;
the small steel box girder of the main road overhead, the small steel box girder of the ramp and the bridge pier of the overground part of the overhead expressway all adopt prefabricated structures;
the ramp reinforced concrete slab and one end of the lap joint structure, which is positioned on the ramp, are fixed with the small steel box girder of the ramp;
the main road overhead and the main road overhead reinforced concrete slab and the main road overhead and the lap joint structure are respectively connected by a main road concrete slab bolt structure and a main road lap joint part bolt structure;
the ramp is connected with the ramp reinforced concrete slab and the ramp is connected with the lap joint structure through a ramp concrete slab bolt structure and a ramp lap joint part bolt structure respectively;
the ramp reconstruction method comprises the following steps:
a. newly building a bridge pile foundation at the new ramp position according to the design;
b. removing the anti-collision wall of the acceleration/deceleration lane section of the main road overhead where the new ramp is located;
c. removing the lap joint structure and the anchoring steel cable between the existing ramp and the main road overhead, and separating the lap joint structure and the anchoring steel cable from the main road overhead;
d. transporting the existing ramp to the new ramp position, reassembling, and reconnecting with the acceleration/deceleration lane section of the main road overhead through the lap joint structure and the anchor steel cable;
e. the anti-collision wall is newly installed at the existing acceleration/deceleration lane position of the ramp;
f. and (5) reconstruction construction is completed.
Preferably, each anti-collision wall is connected with the elevated expressway by adopting a detachable bolt structure.
Preferably, the main road overhead reinforced concrete slab and the lap joint structure are positioned at one end of the main road overhead and are fixed with the small steel box girder of the main road overhead.
More preferably, the main road overhead reinforced concrete slab and the ramp reinforced concrete slab are prefabricated members, the thickness is not less than 8 cm, the length and the width are respectively consistent with those of the corresponding main road overhead small steel box girders or the ramp small steel box girders, and the steel bundles are transversely adopted for anchoring.
The invention has the beneficial effects that:
the invention is applied to urban elevated expressways, and aims to solve a plurality of problems caused by ramp position change through modularized and assembled up-down ramp design and construction.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
Fig. 1 is a schematic view showing a structure between an anti-collision wall and an elevated expressway according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a structure between a main road overhead and a ramp in an embodiment of the present invention.
Fig. 3 is a schematic diagram showing a state of the ramp reconstruction method in step a according to an embodiment of the invention.
Fig. 4 is a schematic diagram showing a state of the ramp reconstruction method in step c according to an embodiment of the invention.
Fig. 5 is a schematic diagram showing a state of the ramp reconstruction method in step e according to an embodiment of the invention.
Detailed Description
Examples
As shown in fig. 1 and 2, an elevated expressway of an assembled up-down ramp is provided with a plurality of anti-collision walls 2, and the elevated expressway 1 comprises a main road elevated 3 and a plurality of ramps 4 connected with the main road elevated 3.
Wherein, each anti-collision wall 2 is detachably connected with the elevated expressway 1;
the main road overhead 3 is connected with each ramp 4 by a lap joint structure 6;
a main road overhead reinforced concrete slab 31 and a ramp reinforced concrete slab 41 are respectively arranged on the main road overhead 3 and each ramp 4;
the main road overhead reinforced concrete slab 31 and the ramp reinforced concrete slab 41 are connected by means of the anchor rope 5;
the small steel box girder of the main road overhead 3, the small steel box girder of the ramp 4 and the bridge pier of the overground part of the overhead expressway 1 all adopt prefabricated structures.
The principle of the invention is that the invention solves a plurality of problems caused by the position change of the ramp 4 through the design and construction of the modularized and spliced ramp 4, and by adopting the method, the construction time can be greatly shortened, the abandonment of the built ramp is avoided, the construction cost is reduced, and the purposes of being intensive, green and efficient are achieved.
In some embodiments, each of the crash walls 2 is connected to the elevated highway 1 using a removable peg structure 21.
In some embodiments, the main road overhead reinforced concrete slab 31, and the end of the overlap structure 6 at the main road overhead 3 are fixed with the small steel box girder of the main road overhead 3;
the ramp reinforced concrete slab 41 and one end of the lap joint structure 6, which is positioned on the ramp 4, are fixed with the small steel box girder of the ramp 4.
In some embodiments, the main road elevation 3 and the main road elevated reinforced concrete slab 31, and the main road elevation 3 and the overlap structure 6 are connected by a main road concrete slab-tie structure 32 and a main road overlap-tie structure 33, respectively;
the ramp 4 is connected with the ramp reinforced concrete slab 41 and the ramp 4 is connected with the lap joint structure 6 by the ramp concrete slab bolt structure 42 and the ramp lap joint part bolt structure 43 respectively.
In some embodiments, the main road overhead reinforced concrete slab 31 and the ramp reinforced concrete slab 41 are prefabricated, the thickness is not less than 8 cm, the length and the width are respectively consistent with those of the corresponding small steel box girders of the main road overhead 3 or the small steel box girders of the ramp 4, and the steel bundles are transversely adopted for anchoring.
As shown in fig. 3 to 4, the invention further provides a ramp reconstruction method for an elevated expressway of an assembled up-down ramp, which comprises the following steps:
a. newly building a bridge pile foundation at the position of the new ramp 4 according to the design;
b. removing the anti-collision wall 2 of the acceleration/deceleration lane section of the main road overhead 3 where the new ramp 4 is located;
c. removing the lap joint structure 6 and the anchoring steel cable 5 between the existing ramp 4 and the main road overhead 3, and separating the lap joint structure and the anchoring steel cable from the main road overhead 3;
d. the existing ramp 4 is transported to the position of the new ramp 4, reassembled and reconnected with the acceleration/deceleration lane section of the main road overhead 3 through the lap joint structure 6 and the anchor steel rope 5;
e. the anti-collision wall 2 is newly arranged at the acceleration/deceleration lane position of the existing ramp 4;
f. and (5) reconstruction construction is completed.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (3)
1. The ramp reconstruction method of an elevated expressway of an assembled up-down ramp, wherein a plurality of anti-collision walls (2) are arranged on the elevated expressway (1), and the elevated expressway (1) comprises a main road elevated frame (3) and a plurality of ramps (4) connected with the main road elevated frame (3); the method is characterized in that:
each anti-collision wall (2) is detachably connected with the elevated expressway (1);
the main road overhead (3) is connected with each ramp (4) through a lap joint structure (6);
the main road overhead (3) and each ramp (4) are respectively provided with a main road overhead reinforced concrete slab (31) and a ramp reinforced concrete slab (41);
the main road overhead reinforced concrete slab (31) and the ramp reinforced concrete slab (41) are connected by an anchoring steel rope (5);
the small steel box girder of the main road overhead (3), the small steel box girder of the ramp (4) and the bridge pier of the overground part of the overhead expressway (1) all adopt prefabricated structures;
the main road overhead reinforced concrete slab (31) and one end of the lap joint structure (6) positioned on the main road overhead (3) are fixed with the small steel box girder of the main road overhead (3);
the ramp reinforced concrete slab (41) and one end of the lap joint structure (6) positioned on the ramp (4) are fixed with a small steel box girder of the ramp (4);
the main road overhead (3) and the main road overhead reinforced concrete slab (31) and the main road overhead (3) and the lap joint structure (6) are respectively connected by a main road concrete slab bolt structure (32) and a main road lap joint part bolt structure (33);
the ramp (4) is connected with the ramp reinforced concrete slab (41) and the ramp (4) is connected with the lap joint structure (6) respectively by a ramp concrete slab bolt structure (42) and a ramp lap joint part bolt structure (43);
the ramp reconstruction method comprises the following steps:
a. newly building a bridge pile foundation at the new ramp (4) position according to the design;
b. removing the anti-collision wall (2) of the acceleration/deceleration lane section of the main road overhead (3) where the new ramp (4) is located;
c. -dismantling the lap joint structure (6) and the anchor wire rope (5) existing between the ramp (4) and the main road overhead (3), separated from the main road overhead (3);
d. transporting the existing ramp (4) to a new ramp (4) position, and reassembling the ramp, wherein the ramp is connected with the acceleration/deceleration lane section of the main road overhead (3) again through the lap joint structure (6) and the anchor steel rope (5);
e. the anti-collision wall (2) is newly arranged at the existing acceleration/deceleration lane position of the ramp (4);
and (5) reconstruction construction is completed.
2. The ramp reconstruction method of an elevated expressway with assembled up-down ramps according to claim 1, wherein each anti-collision wall (2) is connected with the elevated expressway (1) by adopting a detachable bolt structure (21).
3. The method for reconstructing the ramp of the overhead expressway of the assembled type up-down ramp according to claim 1, wherein the main-way overhead reinforced concrete slab (31) and the ramp reinforced concrete slab (41) are prefabricated members, the thickness is not less than 8 cm, the length and the width are respectively consistent with the corresponding small steel box girders of the main-way overhead (3) or the corresponding small steel box girders of the ramp (4), and the main-way overhead reinforced concrete slab and the ramp reinforced concrete slab are transversely anchored by steel bundles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232908.8A CN109811606B (en) | 2019-03-26 | 2019-03-26 | Ramp reconstruction method for overhead expressway of assembled up-down ramp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232908.8A CN109811606B (en) | 2019-03-26 | 2019-03-26 | Ramp reconstruction method for overhead expressway of assembled up-down ramp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109811606A CN109811606A (en) | 2019-05-28 |
| CN109811606B true CN109811606B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910232908.8A Active CN109811606B (en) | 2019-03-26 | 2019-03-26 | Ramp reconstruction method for overhead expressway of assembled up-down ramp |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115450079B (en) * | 2022-10-18 | 2023-05-09 | 成都市市政工程设计研究院有限公司 | Connecting structure of environment-friendly steel structure cantilever pedestrian bridge and main beam and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257038A (en) * | 2003-02-25 | 2004-09-16 | Sho Bond Constr Co Ltd | Structure of bridge expansion joint |
| CN201648959U (en) * | 2009-12-04 | 2010-11-24 | 上海市政工程设计研究总院 | Replaceable connecting device for new and old bridge main beams |
| CN203284731U (en) * | 2013-06-07 | 2013-11-13 | 上海市城市建设设计研究总院 | Fully-prefabricated anti-collision guardrail capable of being rapidly assembled |
| CN205934722U (en) * | 2016-08-12 | 2017-02-08 | 长安大学 | Seam bolted connection precast concrete decking |
| CN207973983U (en) * | 2018-02-08 | 2018-10-16 | 湖南工业大学 | It can rapidly-assembled precast bridge |
| CN210013073U (en) * | 2019-03-26 | 2020-02-04 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled elevated expressway for loading and unloading ramps |
-
2019
- 2019-03-26 CN CN201910232908.8A patent/CN109811606B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257038A (en) * | 2003-02-25 | 2004-09-16 | Sho Bond Constr Co Ltd | Structure of bridge expansion joint |
| CN201648959U (en) * | 2009-12-04 | 2010-11-24 | 上海市政工程设计研究总院 | Replaceable connecting device for new and old bridge main beams |
| CN203284731U (en) * | 2013-06-07 | 2013-11-13 | 上海市城市建设设计研究总院 | Fully-prefabricated anti-collision guardrail capable of being rapidly assembled |
| CN205934722U (en) * | 2016-08-12 | 2017-02-08 | 长安大学 | Seam bolted connection precast concrete decking |
| CN207973983U (en) * | 2018-02-08 | 2018-10-16 | 湖南工业大学 | It can rapidly-assembled precast bridge |
| CN210013073U (en) * | 2019-03-26 | 2020-02-04 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled elevated expressway for loading and unloading ramps |
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| CN109811606A (en) | 2019-05-28 |
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