CN109208483B - Bridge assembled closure section rigid connection assembly capable of being recycled - Google Patents
Bridge assembled closure section rigid connection assembly capable of being recycled Download PDFInfo
- Publication number
- CN109208483B CN109208483B CN201811172260.1A CN201811172260A CN109208483B CN 109208483 B CN109208483 B CN 109208483B CN 201811172260 A CN201811172260 A CN 201811172260A CN 109208483 B CN109208483 B CN 109208483B
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- bridge
- rigid connection
- steel
- steel plate
- section
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 116
- 239000010959 steel Substances 0.000 claims abstract description 116
- 238000004873 anchoring Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 9
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000007306 turnover Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a reusable bridge assembly type closure section rigid connection assembly, which comprises a main structure, an anchoring structure for fixing the end part of the main structure and an embedded steel pipe matched with the anchoring structure, wherein the anchoring structure comprises an upper leveling steel plate welded with the lower bottom surface of one end of the main structure and the upper bottom surface of a bridge roof/bottom plate, a lower leveling steel plate connected with the lower bottom surface of the bridge roof/bottom plate and a fastening bolt for fastening, and the fastening bolt passes through the embedded steel pipe to fasten the lower leveling steel plate, the bridge roof/bottom plate and the upper leveling steel plate together; the embedded steel pipes are arranged in the bridge roof/floor; and two ends of the main structure are respectively connected with one end of the bridge roof/bottom plate. The invention can realize quick disassembly and assembly, has higher recycling rate, is beneficial to saving materials and has stronger adaptability.
Description
Technical Field
The invention relates to a rigid connection structure for a bridge, in particular to a reusable bridge assembly type closure section rigid connection assembly.
Background
With the deep popularization of concepts such as green bridges and circular economy, the steel structure is widely applied to the field of bridge construction, in particular to a temporary structure in bridge construction, and standardized detachable components are often adopted so as to reuse the steel structure to the greatest extent.
In order to ensure smooth construction of the closure section of the concrete bridge so as to achieve the design line shape of the bridge, rigid connection is usually adopted to temporarily and rigidly connect the two side beam sections of the closure section through proper means, then the closure section concrete is poured or the closure section is hoisted, the rigid connection assembly is removed after the closure section concrete reaches the design strength, and then the closure section steel beam is tensioned to complete the construction of the closure section.
The conventional closure section rigid connection assembly generally adopts the steps that anchoring steel bars or section steel are embedded in the top and bottom plates of the bridge box girder, steel plates are welded at the top, and when the outside air temperature reaches the design closure temperature, the section steel is welded on the embedded steel plates to form a whole, so that the purpose of temporary rigid connection of the girder sections at the two sides of the closure section is achieved. This approach has the following problems: 1. the pre-buried section steel and reinforcing steel bars cannot be removed and reused, and the material consumption is large; 2. the difficulty in dismantling the rigid connecting member is high, and the appearance is affected by the exposure of part of the steel structure after dismantling; 3. in the area with thinner top and bottom plates, the top and bottom plates are required to be thickened locally due to embedded bars and the like, so that a great amount of concrete, bars and other materials are wasted; 4. the rigid connection steel member cannot be reused after being dismantled, and can only be recycled; 5. the length of the rigid connection steel member cannot be adjusted once the steel member is fed, and the steel member can be only suitable for a closure section with a certain specific length; 6. when the outside air temperature reaches the design closure temperature, the welding time of the on-site steel structure is longer, and the optimal closure time is difficult to control.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a reusable bridge assembly type closure section rigid connection assembly which can be quickly disassembled and assembled, has higher recycling rate, is favorable for saving materials and has stronger adaptability.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a bridge assembled closure section rigid connection subassembly that can recycle, includes main structure, is used for fixing the anchor structure of main structure tip and with the supporting pre-buried steel pipe that uses of anchor structure, anchor structure include with main structure one end lower floor and bridge roof/bottom plate upper and lower leveling steel sheet that bottom surface welded respectively, with bridge roof/bottom plate lower floor connection's lower leveling steel sheet and be used for fastening bolt, fastening bolt passes pre-buried steel pipe and fastens lower leveling steel sheet, bridge roof/bottom plate, upper leveling steel sheet together; the embedded steel pipes are arranged in the bridge roof/floor; and two ends of the main structure are respectively connected with one end of the bridge roof/bottom plate.
As a further improvement of the above technical scheme: the main structure comprises two standard sections and an adjusting section, wherein the two standard sections are positioned at the end parts, the adjusting section is positioned between the two standard sections, connecting steel plates with reserved bolt holes are welded at the connecting ends of the standard sections and the adjusting section, connecting steel plates with reserved bolt holes are vertically welded at the two ends of the adjusting section respectively, and the standard sections are connected with the adjusting section through connecting bolts.
Further, the number of the adjusting sections is 0-2, and when the number of the adjusting sections is 0, the main structure only comprises standard sections of the integral structure, and does not comprise the adjusting sections and connecting steel plates for connection; the setting of adjusting section is in order to be convenient through changing major structure adjusting section length or adjusting section number in order to realize the adaptability to different length closure sections, and the quantity of adjusting section also can be more than 2, and the construction is inconvenient when quantity exceeds 2, therefore the quantity of adjusting section is 0-2 of preference.
Furthermore, the standard section and the adjusting section are composed of a plurality of double-row or three-row section steel with the same model, steel batten plates with the thickness of 6-30 mm are welded at the top and the bottom of the section steel, and a plurality of rows of section steel are transversely welded into a whole.
Further, the welding connection between the standard section and the upper leveling steel plate and between the standard section and the connecting steel plate can be completed in a factory, the welding connection between the adjusting section and the connecting steel plate can be completed in the factory, the installation and the construction are convenient and quick, the field welding operation is omitted, and the construction quality is easy to guarantee.
Further, the center thickness of the upper leveling steel plate is 10-80mm, and the center thickness of the lower leveling steel plate is 10-80mm.
Further, the wall thickness of the embedded steel pipe is 1-5mm, the embedded steel pipe is guaranteed not to deform, meanwhile, excessive thick waste materials are avoided, the pipe diameter of the embedded steel pipe is 2-20mm larger than the diameter of the fastening bolt, the diameter of the embedded steel pipe is larger than the diameter of the fastening bolt by a certain size so as to adapt to the embedded precision error, the bolt can be installed smoothly, and the length of the embedded steel pipe is the same as the thickness of the bridge roof/bottom plate.
Further, the lower leveling steel plate is composed of two transverse split structures, the steel consumption can be reduced by dividing the lower leveling steel plate into two transverse split structures, meanwhile, the weight of the leveling steel plate is reduced, the lower leveling steel plate is convenient to manually install under the condition that mechanical lifting cannot be performed below a bridge deck, the lower leveling steel plate can be well adapted to the situation that the lower edge of the top and bottom plates of the box girder is provided with a chamfer, and the condition that the integral leveling steel plate is too thick is avoided.
Further, the performance level of the fastening bolt is not lower than 4.8.
Furthermore, the number of the main structures at the closure section of each bridge roof/bottom plate is not less than two, so that the structural reliability and stability of the connection position are ensured to be higher.
Further, the number of the embedded steel pipes at the joint of one end of each main structure and the bridge roof/bottom plate is not less than four, the distance between two adjacent embedded steel pipes is 60-300mm, and the structural reliability and stability of the joint of the main structure and the bridge roof/bottom plate are ensured to be higher.
Compared with the prior art, the invention has the advantages that:
1. the rigid connection assembly is convenient and quick to install and construct, no welding operation is performed on site, the construction quality is easy to guarantee, the required amount of construction tools is small, and the rigid connection can be completed only by a plurality of sets of fastening bolt screwing tools; the rapid construction characteristic is beneficial to the control of engineers on the closure temperature and time of the bridge, so that the bridge structure reaches an optimal stress state after closure;
2. the rigid connecting components are connected (detachably connected) by bolts when being assembled and installed on site, and can be conveniently and rapidly disassembled and recycled after one-time use without reducing the functions of the conventional closure section rigid connecting components, so that the rigid connecting components are convenient for next use, and no obvious trace is left on the bridge deck after the disassembly is completed;
3. the steel member of the rigid connection assembly has high recycling rate, only the embedded steel pipe is an embedded part and can not be recycled, and other members can be recycled and can be put into use again after being checked;
4. the main structure of the rigid connection assembly is provided with the adjusting section, so that the rigid connection assembly can adapt to rigid connection of closure section construction with different lengths, the adaptability of the rigid connection assembly is improved, and the turnover rate of the steel member is further improved.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is an enlarged cross-sectional view of A-A of FIG. 1;
FIG. 3 is an enlarged sectional view of B-B of FIG. 1;
FIG. 4 is an enlarged cross-sectional view of C-C of FIG. 1;
FIG. 5 is an enlarged sectional view of D-D of FIG. 1;
FIG. 6 is a schematic structural view of embodiment 2 of the present invention;
fig. 7 is a schematic structural view of embodiment 3 of the present invention.
Legend description:
1. a main structure; 11. a standard section; 12. a regulating section; 13. connecting steel plates; 14. a connecting bolt; 15. section steel; 16. a steel lacing plate; 2. an anchor structure; 21. a leveling steel plate is arranged on the upper part; 22. a lower leveling steel plate; 23. a fastening bolt; 3. embedding a steel pipe; 4. bridge roof/floor.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Example 1:
as shown in fig. 1 to 5, a reusable bridge fitting type closure section rigid connection assembly comprises a main structure 1, an anchoring structure 2 for fixing the end part of the main structure 1 and an embedded steel pipe 3 matched with the anchoring structure 2, wherein the anchoring structure 2 comprises an upper leveling steel plate 21 welded with the lower bottom surface of one end of the main structure 1 and the upper bottom surface of a bridge roof/bottom plate 4 respectively, a lower leveling steel plate 22 connected with the lower bottom surface of the bridge roof/bottom plate 4 and a fastening bolt 23 for fastening, and the high-strength fastening bolt 23 penetrates through the embedded steel pipe 3 to fasten the lower leveling steel plate 22, the bridge roof/bottom plate 4 and the upper leveling steel plate 21 together; the embedded steel pipe 3 is arranged in the bridge roof/bottom plate 4; the two ends of the main structure 1 are respectively connected with one end of the bridge roof/bottom plate 4.
The reusable bridge assembly type closure section rigid connecting component of the embodiment adopts a bolted anchoring structure, has the advantages of convenient and quick assembly and disassembly construction, high recycling rate and the like, and in the assembly type closure section rigid connecting component of the embodiment, other components can be recycled for a plurality of times except that the embedded steel pipe 3 with extremely low weight ratio cannot be recycled, and the recycling rate of the steel structure is up to 96.25%.
In this embodiment, the main structure 1 includes two standard sections 11 and regulating section 12, two standard sections 11 are in the tip, regulating section 12 is in between two standard sections 11, the connecting steel sheet 13 of reserved bolt hole has been welded to the connecting end of standard section 11 and regulating section 12, the vertical welding of both ends of regulating section 12 has the connecting steel sheet 13 of reserved bolt hole respectively, standard section 11 is connected through connecting bolt 14 with regulating section 12, can realize the length variation of main structure 1 through changing the length of regulating section 12, thereby realize the rigid connection of different length bridge closure sections, greatly improved rigid connection assembly's adaptability, and then improve the turnover rate of steel member.
In this embodiment, the number of the adjustment sections 12 is one.
In the embodiment, the standard section 11 and the adjusting section 12 are composed of a plurality of double-row or three-row section steel 15 with the same model, and the top and the bottom of the section steel 15 are welded with the intermittent steel lacing plates 16 with the thickness of 6-30 mm to transversely weld the plurality of rows of section steel 15 into a whole, so that the stability and the stress reliability of the main structure 1 are improved.
In this embodiment, the welded connection between the standard segment 11 and the upper leveling steel plate 21 and the welded connection between the standard segment 12 and the connecting steel plate 13 can be completed in a factory, and the welded connection between the standard segment and the connecting steel plate 13 can be completed in a factory.
In this embodiment, the center thickness of the upper leveling steel plate 21 is 50mm, and the center thickness of the lower leveling steel plate 22 is 60mm.
In this embodiment, the wall thickness of the embedded steel pipe 3 is 3mm, the pipe diameter of the embedded steel pipe 3 is larger than the diameter of the fastening bolt 23 by 15mm, and the length of the embedded steel pipe 3 is the same as the thickness of the bridge roof/floor 4.
In this embodiment, the lower leveling steel plate 22 is composed of a transverse two-piece split structure.
In the present embodiment, the performance level of the fastening bolt 23 is not lower than 4.8.
In this embodiment, the number of main structures 1 at the closure section of each bridge roof/floor 4 is not less than two.
In this embodiment, the number of the embedded steel pipes 3 at the joint between one end of each main structure 1 and the bridge roof/floor 4 is not less than four, and the distance between two adjacent embedded steel pipes 3 is 200mm.
Except that adopting mill welded connection, the assembled closure section rigid connection assembly of this embodiment all adopts bolted connection, and after rigid connection assembly use was accomplished, only need loosen fastening bolt 23, can accomplish rigid connection assembly's demolishment, and the bridge floor does not have obvious vestige after demolishing, does not influence the clean and tidy pleasing to the eye of building site to realize civilized construction.
Example 2:
as shown in fig. 6, this embodiment differs from embodiment 1 in that: the number of the adjusting sections 12 is zero, the main structure only comprises the standard sections 11, and the two standard sections 11 are of an integral structure, so that the connecting steel plates 13 are not included in the embodiment, and the rest of the structure and the corresponding arrangement are the same as those of the embodiment 1.
Example 3:
as shown in fig. 7, this embodiment differs from embodiment 1 in that: the number of the adjustment sections 12 is two, and the rest of the structure and the corresponding arrangement are the same as those of embodiment 1.
Claims (9)
1. Reusable bridge assembly type closure section rigid connection assembly is characterized in that: the device comprises a main structure (1), an anchoring structure (2) for fixing the end part of the main structure (1) and an embedded steel pipe (3) matched with the anchoring structure (2), wherein the anchoring structure (2) comprises an upper leveling steel plate (21) welded with the lower bottom surface of one end of the main structure (1) and the upper bottom surface of a bridge roof/bottom plate (4), a lower leveling steel plate (22) connected with the lower bottom surface of the bridge roof/bottom plate (4) and a fastening bolt (23) for fastening, and the fastening bolt (23) penetrates through the embedded steel pipe (3) to fasten the lower leveling steel plate (22), the bridge roof/bottom plate (4) and the upper leveling steel plate (21) together; the embedded steel pipe (3) is arranged in the bridge roof/bottom plate (4); two ends of the main structure (1) are respectively connected with one end of the bridge roof/bottom plate (4);
the main structure (1) comprises two standard sections (11) and an adjusting section (12), wherein the two standard sections (11) are arranged at the end parts, the adjusting section (12) is arranged between the two standard sections (11), a connecting steel plate (13) with reserved bolt holes is welded at the connecting end of the standard sections (11) and the connecting end of the adjusting section (12), connecting steel plates (13) with reserved bolt holes are respectively welded at the two ends of the adjusting section (12) vertically, and the standard sections (11) are connected with the adjusting section (12) through connecting bolts (14).
2. The reusable bridge fitting rigid connection assembly of claim 1, wherein: the number of the adjusting sections (12) is 1-2.
3. The reusable bridge fitting rigid connection assembly of claim 1, wherein: the standard section (11) and the adjusting section (12) are composed of a plurality of double-row or three-row profile steel (15) with the same model, steel lacing plates (16) with the thickness of 6-30 mm are welded at the top and the bottom of the profile steel (15), and the multi-row profile steel (15) is transversely welded into a whole.
4. The reusable bridge fitting rigid connection assembly of claim 1, wherein: the welding connection between the standard section (11) and the upper leveling steel plate (21) and the welding connection between the standard section and the connecting steel plate (13) are completed in a factory, and the welding connection between the adjusting section (12) and the connecting steel plate (13) is completed in the factory.
5. The reusable bridge fitting rigid connection assembly of any of claims 1-4, wherein: the center thickness of the upper leveling steel plate (21) is 10-80mm, and the center thickness of the lower leveling steel plate (22) is 10-80mm.
6. The reusable bridge fitting rigid connection assembly of any of claims 1-4, wherein: the wall thickness of the embedded steel pipe (3) is 1-5mm, the pipe diameter of the embedded steel pipe (3) is 2-20mm larger than the diameter of the fastening bolt (23), and the length of the embedded steel pipe (3) is the same as the thickness of the bridge roof/bottom plate (4).
7. The reusable bridge fitting rigid connection assembly of any of claims 1-4, wherein: the lower leveling steel plate (22) is composed of a transverse split structure.
8. The reusable bridge fitting rigid connection assembly of any of claims 1-4, wherein: the performance level of the fastening bolt (23) is not lower than 4.8.
9. The reusable bridge fitting rigid connection assembly of any of claims 1-4, wherein: the number of the main structures (1) at the closure section of each bridge roof/floor (4) is not less than two; the number of the embedded steel pipes (3) at the joint of one end of each main structure (1) and the bridge roof/bottom plate (4) is not less than four, and the distance between two adjacent embedded steel pipes (3) is 60-300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172260.1A CN109208483B (en) | 2018-10-09 | 2018-10-09 | Bridge assembled closure section rigid connection assembly capable of being recycled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172260.1A CN109208483B (en) | 2018-10-09 | 2018-10-09 | Bridge assembled closure section rigid connection assembly capable of being recycled |
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| Publication Number | Publication Date |
|---|---|
| CN109208483A CN109208483A (en) | 2019-01-15 |
| CN109208483B true CN109208483B (en) | 2024-01-30 |
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| CN201811172260.1A Active CN109208483B (en) | 2018-10-09 | 2018-10-09 | Bridge assembled closure section rigid connection assembly capable of being recycled |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184943B (en) * | 2019-07-02 | 2020-09-29 | 中铁七局集团有限公司 | Multi-span continuous beam prestressed concrete bridge closure construction method |
| CN113529558A (en) * | 2020-04-13 | 2021-10-22 | 广西泰屹重工机械有限公司 | Swivel bridge closed steel shell |
| CN111893900B (en) * | 2020-08-06 | 2021-08-17 | 华东交通大学 | Assembled bridge of turning |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1244324A1 (en) * | 1984-07-20 | 1986-07-15 | Трест "Донецкшахтпроходка" | Method of mounting buntons |
| JP2013174076A (en) * | 2012-02-24 | 2013-09-05 | Nippon Steel & Sumikin Engineering Co Ltd | Slab bridge using square steel tube and construction method of the slab bridge |
| CN106087713A (en) * | 2016-08-25 | 2016-11-09 | 中铁五局集团路桥工程有限责任公司 | Stiff skeleton is locked outside a kind of assembled closure section |
| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN209099196U (en) * | 2018-10-09 | 2019-07-12 | 湖南省交通规划勘察设计院有限公司 | A kind of reusable bridge assembled closure section rigid connection component |
-
2018
- 2018-10-09 CN CN201811172260.1A patent/CN109208483B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1244324A1 (en) * | 1984-07-20 | 1986-07-15 | Трест "Донецкшахтпроходка" | Method of mounting buntons |
| JP2013174076A (en) * | 2012-02-24 | 2013-09-05 | Nippon Steel & Sumikin Engineering Co Ltd | Slab bridge using square steel tube and construction method of the slab bridge |
| CN106087713A (en) * | 2016-08-25 | 2016-11-09 | 中铁五局集团路桥工程有限责任公司 | Stiff skeleton is locked outside a kind of assembled closure section |
| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN209099196U (en) * | 2018-10-09 | 2019-07-12 | 湖南省交通规划勘察设计院有限公司 | A kind of reusable bridge assembled closure section rigid connection component |
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