CN111139755A - Assembled corrugated steel arch shed tunnel structure - Google Patents
Assembled corrugated steel arch shed tunnel structure Download PDFInfo
- Publication number
- CN111139755A CN111139755A CN201911393747.7A CN201911393747A CN111139755A CN 111139755 A CN111139755 A CN 111139755A CN 201911393747 A CN201911393747 A CN 201911393747A CN 111139755 A CN111139755 A CN 111139755A
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- corrugated steel
- arch
- shed tunnel
- assembled
- steel
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of highway engineering and structural engineering, and discloses an assembled corrugated steel arch shed tunnel structure which comprises shed tunnel side walls, corrugated steel arches, high-strength bolts, arch foot flange plates (or channel steel) and a zinc coating. The corrugated steel is prefabricated into sheets, the sheets are assembled after being transported to the site, the sheets are connected and anchored through high-strength bolts to form an arch structure, and the arch structure is fixed and connected with the side wall through flange plates. The corrugated steel is subjected to anti-corrosion treatment by adopting galvanization, the corrugated steel sheets are connected in an annular and longitudinal mode through lap joints, the lap joints are screwed down by adopting high-strength bolts, and the arch springing adopts a flange plate (or channel steel) as a connection foundation, so that the structural stability can be improved, and the corrugated steel can also be connected with the top of a side wall of a shed tunnel. The invention has novel structure, convenient assembly and simple construction, can replace the conventional reinforced concrete shed tunnel frame structure, has strong safety, high efficiency, material saving, low cost and obvious benefits; the safety protection device is suitable for the safety protection of the snow-proof road section and the debris flow road section in the side slope rockfall and heavy snow areas, and the like.
Description
Technical Field
The invention relates to the technical field of highway engineering, in particular to an assembled corrugated steel arch shed tunnel structure.
Background
With the urgent need and rapid development of the infrastructure of China, the quantity, scale and speed of the engineering construction of roads, bridges, tunnels, municipal works and the like are in the top of the world. As southwest of China belongs to mountain ridge heavy hill areas, the tunnel ratio of a highway bridge reaches 60-80%, and a highway high side slope and a rockfall prevention and snow prevention safety risk avoiding structure become a serious difficulty for highway construction. The conventional reinforced concrete shed tunnel is formed by a foundation and a reinforced concrete full-section frame structure, and the supporting mode has the disadvantages of complex working procedures, high material consumption, high cost and long construction period; particularly, for roads in operation, the influence of the frame building cast-in-place construction on traffic is great, the potential safety hazard is serious, and the construction progress of the engineering is greatly restricted.
Disclosure of Invention
The invention aims to provide an assembled corrugated steel arch shed tunnel structure aiming at the defects and shortcomings of the existing reinforced concrete shed tunnel construction technology, the corrugated steel wave shape and the steel plate thickness are adjusted, the connection mode between corrugated steel and a side wall foundation is optimized, the span of the corrugated steel arch structure can reach 10-15 meters, the conventional reinforced concrete shed tunnel structure is effectively replaced, the construction time is shortened to two thirds of the original construction time, the construction cost is saved by about 30% per linear meter, and the construction efficiency of the shed tunnel structure is greatly improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
the height and the width of the shed tunnel side wall foundation are determined according to the requirements of projects on net height and net width, and the side wall is built on a road shoulder and usually consists of a reinforced concrete structure. The construction of the side wall does not influence traffic operation.
An assembled corrugated steel arch shed tunnel structure comprises corrugated steel, connecting bolts, arch foot flange plates and a zinc coating. The corrugated steel is prefabricated into sheets, the sheets are assembled after being transported to the site, the sheets are connected and anchored through high-strength bolts to form an arch structure, and the arch structure is fixed and connected with the top of the side wall through a flange plate.
Furthermore, the corrugated steel is processed from Q235 or Q345 plates, the wave pitch-wave crest-plate thickness (mm) is determined according to the structural requirements, the wave shape of 200-55-5-380-140-5 is generally adopted, and the plate thickness is 3-10 mm. The arc length of each corrugated steel sheet is 1.0-5.0 m, the width of each corrugated steel sheet is 0.6-1.9 m, each ring arch is formed by assembling a plurality of corrugated steel sheets, and the arch foot is vertically welded or anchored with the corrugated steel sheet by adopting a flange plate.
Furthermore, adjacent corrugated steel plates are connected in a wave crest and wave trough overlapping mode and are fixedly connected through bolts.
Furthermore, according to the requirement, the corrugated steel can be provided with a vent hole and a light-transmitting window.
Furthermore, the corrugated steel arch springing adopts a flange plate as a foundation to be fixed and connected with the top of the side wall or other foundations.
Furthermore, the inner side and the outer side of the corrugated steel are subjected to corrosion prevention and corrosion prevention by adopting a zinc coating.
In summary, compared with the prior art, the invention has at least one of the following beneficial effects:
1. the conventional reinforced concrete frame type shed tunnel structure is replaced, so that the construction is more convenient and safer, the labor cost and the material cost are saved, the construction progress is accelerated, and the safety risk is reduced; particularly, the advantages of the operation road reconstruction project are more prominent.
2. By adjusting the waveform and the plate thickness of the corrugated steel, the purpose of adjusting the stress performance and the arch span of the corrugated steel is achieved according to different net width and net height requirements or other similar structural requirements, and the effective utilization rate of the arch structure of the corrugated steel is greatly improved.
3. Through the lapped mode, rather than the riveting of the flange plates, the quick connection between the steel plates is realized, and the structure is lighter.
4. The service life of the corrugated steel can reach 80-100 years after the galvanization treatment, and the applicable life of the conventional structure is greatly prolonged.
Drawings
FIG. 1 is a schematic view of an assembled corrugated steel arch shed tunnel structure;
FIG. 2 is a schematic view of the corrugated steel plate being divided and overlapped;
FIG. 3 is a large view of the axial overlapping of corrugated steel plates;
FIG. 4 is a circumferential lapping outline of a corrugated steel plate;
FIG. 5 is a schematic view of the abutment flange connection;
the labels in the figure are: 1-corrugated steel, 2-high-strength bolts, 3-flange plates (or channel steel), 4-zinc coating, 5-ventilation or light transmission holes, 6-gaskets, 7-sealing adhesive tapes, 8-connecting holes and 9-side walls.
Claims (7)
1. The utility model provides an assembled corrugated steel arch shed tunnel structure which characterized in that: the steel arch spring is formed by splicing a plurality of pieces of corrugated steel (1), the corrugated steel is connected in an overlapping mode in the circumferential direction and the longitudinal direction, bolts (2) are used in the overlapping position, a flange plate (3) is used in an arch foot foundation, and the corrugated steel is subjected to anti-corrosion treatment through galvanizing (4).
2. An assembled corrugated steel arch shed tunnel structure as in claim 1, wherein: the corrugated steel (1) is processed by adopting a Q235 plate or Q345, the waveform and the plate thickness of the corrugated steel can be adjusted according to the structural characteristics and requirements, the corrugated steel is generally in a waveform of 200-55-5-380-140-5, the plate thickness is 3-10 mm, the arc length of each corrugated steel is 1.0-5.0 m, the width of each corrugated steel is 0.6-1.9 m, each ring arch is formed by assembling a plurality of corrugated steels, and the arch foot is vertically welded or anchored with the corrugated steel plate (1) by adopting a flange (3).
3. An assembled corrugated steel arch shed tunnel structure as in claim 2, wherein: the corrugated steel is adjusted in waveform and plate thickness, the purpose of adjusting the stress performance and the arch span of the corrugated steel is achieved according to different net width and net height requirements or other similar structural requirements, and the effective utilization rate of the arch structure of the corrugated steel is greatly improved.
4. An assembled corrugated steel arch shed tunnel structure as in claim 2, wherein: the periphery of the corrugated steel plate (1) is provided with overlapping holes, adjacent plates are connected in an overlapping mode and are fixedly connected by high-strength bolts (2), ventilation or light transmission holes (5) can be formed in the middle of the plates as required, and the corrugated steel at the arch springing position is provided with connecting holes (8).
5. An assembled corrugated steel arch shed tunnel structure as in claim 3, wherein: through the lapped mode, rather than the riveting of the flange plates, the quick connection between the steel plates is realized, and the structure is lighter.
6. An assembled corrugated steel arch shed tunnel structure as in claim 2, wherein: the flange plate (3) of the arch foot foundation is made of L-shaped steel.
7. An assembled corrugated steel arch shed tunnel structure as in claim 1, wherein: the corrugated steel is subjected to anti-corrosion treatment by adopting the zinc plating (4), the service life of the structure can reach 80-100 years, and the applicable life of the conventional structure is greatly prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393747.7A CN111139755A (en) | 2019-12-30 | 2019-12-30 | Assembled corrugated steel arch shed tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393747.7A CN111139755A (en) | 2019-12-30 | 2019-12-30 | Assembled corrugated steel arch shed tunnel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111139755A true CN111139755A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911393747.7A Pending CN111139755A (en) | 2019-12-30 | 2019-12-30 | Assembled corrugated steel arch shed tunnel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111139755A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322844A (en) * | 2021-05-07 | 2021-08-31 | 交通运输部公路科学研究所 | Avalanche impact resistant shed tunnel with prefabricated retaining wall and assembled arch structure and construction method |
-
2019
- 2019-12-30 CN CN201911393747.7A patent/CN111139755A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322844A (en) * | 2021-05-07 | 2021-08-31 | 交通运输部公路科学研究所 | Avalanche impact resistant shed tunnel with prefabricated retaining wall and assembled arch structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200512 |