CN113668366A - Arc-shaped truss snow-resisting net for protecting bridge from blowing snow - Google Patents
Arc-shaped truss snow-resisting net for protecting bridge from blowing snow Download PDFInfo
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- CN113668366A CN113668366A CN202110995595.9A CN202110995595A CN113668366A CN 113668366 A CN113668366 A CN 113668366A CN 202110995595 A CN202110995595 A CN 202110995595A CN 113668366 A CN113668366 A CN 113668366A
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- 238000007664 blowing Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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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
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
- E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances
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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 discloses an arc-shaped truss snow-blocking net for wind-blowing snow protection of a bridge, which comprises an arc-shaped snow-blocking net, wherein a first snow-blocking plate bracket is arranged at the upper part of the back surface of the arc-shaped snow-blocking net, a second snow-blocking plate bracket and a third snow-blocking plate bracket are arranged at the lower part of the back surface of the arc-shaped snow-blocking net, the first snow-blocking plate bracket and the second snow-blocking plate bracket are hinged on a support, the third snow-blocking plate bracket is hinged on a vertical bracket, and the vertical bracket is fixed on a bridge abutment. This product adopts the truss-like structure, installs in the bridge railing outside, make full use of the original facility of bridge and do the support, when the original bridge facility of few disturbances, set up the vortex region of enough distance to reach the bridge crosswind that the stream guidance, board back weak wind descend before the snowboard and blow snow prevention purpose.
Description
Technical Field
The invention relates to the technical field of road and bridge snow protection engineering, in particular to an arc-shaped truss snow-resisting net for wind-blowing snow protection of a bridge.
Background
At present, most snow-proof projects used on domestic highways comprise snow-proof boards, snow-proof walls, snow-proof nets and the like. For example, the snow protection net structure is formed by vertically installing the snow protection net on a road section needing protection in a fixing mode of anchor rods, anchor ropes, upright columns, fixed pressing plates and the like, so as to form a fence type flexible protection system for intercepting blown snow.
By integrating the existing products in the current market, most of the products have the following defects:
(1) the structure is not suitable for preventing and controlling the wind and snow blowing of the bridge. At home and abroad, snow protection projects mostly adopt truss vertical type and cable vertical type, and support rods are inclined and are influenced by the structure of the truss vertical type and cable vertical type, and generally only are suitable for wind-blown snow protection of a roadbed, and generally need to be arranged at a certain distance from the roadbed, and in addition, the overall structure is thick and heavy, so that the truss vertical type and cable vertical type snow protection bridge cannot be installed on a bridge and is not suitable for wind-blown snow prevention and control of the bridge.
(2) Snow protection efficiency is low. Snow protection projects at home and abroad generally adopt only the principle of stopping snow or only guiding snow, and the snow protection efficiency is not high.
Therefore, the development of a snow protection facility suitable for the wind-blowing snow protection of bridges is one of the problems to be solved in the field.
Disclosure of Invention
The invention aims to provide an arc-shaped truss snow-blocking net for wind-blowing snow protection of a bridge, which solves the problem of road surface snow resistance caused by bridge steel guardrails and concrete guardrails in wind-blowing snow affected areas on the background that road side safety facility indexes are not reduced. The main principle is that the snow blowing net frame is adopted to restrain and guide the snow blowing before the snow blowing reaches the bridge guardrail, so that the snow blowing is guided downwards in front of the restraining net or is settled behind the restraining net, the snow blowing amount in the range of the guardrail to be passed is reduced, the aim of reducing the snow resistance behind the guardrail is achieved, the road smoothness of the road section is guaranteed, and the traffic safety of the road is maintained.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an arc truss hinders snow net for protection that bridge wind blows snow, hinders snow net including the arc, the arc hinders the upper portion at the snow net back and is equipped with the first snow board support that hinders, the arc hinders the lower part at the snow net back and is equipped with the second and hinders snow board support and third and hinder snow board support, the first snow board support that hinders and second hinder snow board support and articulate on the support, the third hinders snow board support and articulates on vertical support, vertical support fixes on the abutment.
The arc-shaped snow-resisting net is composed of an arc-shaped snow-resisting net base and a double-layer staggered steel plate net arranged on the arc-shaped snow-resisting net base.
Wherein the concave surface of the arc-shaped snow blocking net faces the incoming direction of the wind and snow flow, and the upper part of the concave surface inclines forwards.
The second snow blocking plate support and the third snow blocking plate support are hinged with each other.
Wherein, the support is fixed on the upper part of the outer side of the upright post.
Wherein the lower part of the upright post is fixed on the bridge abutment.
Wherein, a plurality of parallel and horizontally arranged guardrails are fixed on the inner side of the upright post.
The arc-shaped truss snow-blocking net is mainly arranged at the side of a highway bridge influenced by wind blowing snow; the method can also be applied to railway bridges by additionally arranging the stand columns.
Compared with the prior art, the invention has the outstanding effects that:
(1) the product of the invention is a special snow protection project for preventing and controlling wind blowing snow of bridges, has stable structure and high snow protection efficiency, can not change the original road scheme, and can be adopted in the stages of new construction, reconstruction, extension and major and middle repair.
(2) This product adopts the truss-like structure, installs in the bridge railing outside, make full use of the original facility of bridge and do the support, when the original bridge facility of few disturbances, set up the vortex region of enough distance to reach the bridge crosswind that the stream guidance, board back weak wind descend before the snowboard and blow snow prevention purpose.
(3) The snow-proof efficiency of the product is higher than that of the common snow-proof engineering. The large-radius double-layer arc-shaped snow protection net is used as a snow blocking main body, and two mechanisms of diversion and retardation in wind blowing snow prevention and control are comprehensively applied. Under the condition of medium and low speed wind and snow flows, the arc-shaped plate surface forms a flow guiding flow field in front of the plate, and the wind and snow flows which are to approach the outer side of the guardrail are guided into the lower part of the bridge; under the condition of medium and high speed wind and snow flows, vortex can be formed after the arc-shaped plate surface is provided with double layers of staggered steel plates, and the snow flow passing through the plate surface due to strong wind can settle after the speed of the plate rear weak wind area is reduced, so that a flow field blocking the snow flow is formed behind the front plate of the plate, the snow blowing amount passing through the guardrail is reduced, and the function of preventing and controlling the snow blown by wind of a bridge is achieved.
(4) The construction cost is low, and the construction is simple and convenient. The supporting structure and the board surface structure adopted by the product are standard parts, so that the product is convenient to purchase in the market and relatively low in price. The whole structure basically adopts bolt connection, and the construction is simple and convenient.
(5) The product is flexible and changeable, and has multiple applicable scenes. In terms of industry, the product is suitable for industries such as highways, railways, municipal administration and the like; from the wind snow prevention and control condition, aiming at the wind snow blowing of different wind directions and wind forces, the mode of changing the radian of the snow guard plate surface and adjusting the transmittance of the net surface can be adopted for accurate adjustment, the use efficiency is improved, and the product pertinence is enhanced.
The invention further discloses an arc truss snow-resisting net for wind-blowing snow protection of a bridge, which is described in the following by combining the description of the attached drawings and specific embodiments.
Drawings
FIG. 1 is a schematic side view of an arcuate truss snow blocking net of the present invention;
fig. 2 is a front view of the arc-shaped snow-blocking net of the present invention.
The snow protection device comprises a 1-arc snow protection net, a 2-first snow protection plate support, a 3-second snow protection plate support, a 4-third snow protection plate support, a 5-vertical support, a 6-bridge abutment, a 7-upright post, an 8-guardrail, a 9-support and a 10-arc snow protection net base.
Detailed Description
As shown in fig. 1-2, an arc-shaped truss snow-blocking net for protecting a bridge from wind and snow comprises an arc-shaped snow-blocking net 1, wherein a first snow-blocking plate support 1 is arranged on the upper portion of the back of the arc-shaped snow-blocking net 1, a second snow-blocking plate support 2 and a third snow-blocking plate support 4 are arranged on the lower portion of the back of the arc-shaped snow-blocking net 1, the first snow-blocking plate support 1 and the second snow-blocking plate support 2 are hinged to a support 9, the third snow-blocking plate support 4 is hinged to a vertical support 5, and the vertical support 5 is fixed to a bridge abutment 6. The second hinders snowboard support 2 and hinders snowboard support 4 articulated each other with the third, and its pin joint is located the arc and hinders the snow net 1 back.
The length of the first snow-proof plate bracket 1 is 3.144m, the length of the second snow-proof plate bracket 2 is 2.811m, the length of the third snow-proof plate bracket 4 is 2.494m, and the height of the vertical bracket 5 is 1.255 m.
The height from the connecting point of the first snow-resisting plate bracket 1 and the arc-shaped snow-resisting net 1 to the upper edge of the arc-shaped snow-resisting net 1 is 21.2 cm. The height of the hinge point of the second snow resisting plate bracket 2 and the third snow resisting plate bracket 4 from the lower edge of the arc-shaped snow resisting net 1 is 50cm, and the horizontal distance between the hinge point and the upright post 7 is 2.346 m.
The arc-shaped snow-resisting net 1 consists of an arc-shaped snow-resisting net base 10 and a double-layer staggered steel plate net arranged on the arc-shaped snow-resisting net base 10. The concave surface of the arc-shaped snow-blocking net 1 faces the incoming direction of wind and snow flow, and the upper part of the concave surface inclines forwards. The arc radius of the arc snow-resisting net 1 is 3.5 m. The length of the single arc snow-resisting net is 3m, and the height of the single arc snow-resisting net is 2.2 m. Three horizontal and parallel ribs are uniformly distributed in the arc-shaped snow blocking net base 10, the height of each rib is 8cm, the distance between every two adjacent ribs is 43cm, and the double-layer staggered steel plate net is fixed between every two adjacent ribs.
The support 9 is fixed to the upper part of the outer side of the upright 7. The lower part of the upright post 7 is fixed on the abutment 6. The inner side of the upright post 7 is fixed with 4 parallel and horizontally arranged guardrails 8. The guardrail 8 is a steel guardrail, and the distance between two adjacent steel guardrails is 43.5 cm.
This support system that arc truss hinders snow net adopts T shaped steel truss structure, and upper portion two supports are articulated with bridge railing stand upper end, and the lower extreme just connects T shaped steel main tributary to support through the pre-buried flange mode in abutment edge, and main tributary is articulated with the bottom sprag (concrete barrier is also suitable for). The product is mainly arranged at the side of a highway bridge affected by wind and snow blowing, and can also be applied to a railway bridge in a mode of additionally arranging the stand columns.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. The utility model provides an arc truss that is used for bridge wind to blow snow protection hinders snow net which characterized in that: including the arc hinder snow net (1), the arc hinders the upper portion at the snow net (1) back and is equipped with first snow board support (1) that hinders, the arc hinders the lower part at the snow net (1) back and is equipped with the second and hinders snow board support (2) and third and hinders snow board support (4), first snow board support (1) that hinders and second hinder snow board support (2) and articulate on support (9), the third hinders snow board support (4) and articulates on vertical support (5), vertical support (5) are fixed on abutment (6).
2. The arc-shaped truss snow-resisting net for wind-blowing snow protection of bridges as claimed in claim 1, wherein: the arc-shaped snow-resisting net (1) consists of an arc-shaped snow-resisting net base (10) and a double-layer staggered steel plate net arranged on the arc-shaped snow-resisting net base (10).
3. The arc-shaped truss snow-resisting net for wind-blowing snow protection of bridges as claimed in claim 2, wherein: the concave surface of the arc-shaped snow blocking net (1) faces the incoming direction of wind and snow flow, and the upper part of the concave surface inclines forwards.
4. The arc-shaped truss snow-resisting net for bridge wind snow blowing protection as claimed in claim 3, is characterized in that: the second snow-resisting plate bracket (2) and the third snow-resisting plate bracket (4) are hinged with each other.
5. The arc-shaped truss snow-resisting net for wind-blowing snow protection of bridges as claimed in claim 4, wherein: the support (9) is fixed on the upper part of the outer side of the upright post (7).
6. The arc-shaped truss snow-resisting net for wind-blowing snow protection of bridges as claimed in claim 5, wherein: the lower part of the upright post (7) is fixed on the bridge abutment (6).
7. The arc-shaped truss snow-resisting net for wind-blowing snow protection of bridges as claimed in claim 6, wherein: a plurality of parallel and horizontally arranged guardrails (8) are fixed on the inner side of the upright post (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995595.9A CN113668366A (en) | 2021-08-27 | 2021-08-27 | Arc-shaped truss snow-resisting net for protecting bridge from blowing snow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995595.9A CN113668366A (en) | 2021-08-27 | 2021-08-27 | Arc-shaped truss snow-resisting net for protecting bridge from blowing snow |
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| Publication Number | Publication Date |
|---|---|
| CN113668366A true CN113668366A (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995595.9A Pending CN113668366A (en) | 2021-08-27 | 2021-08-27 | Arc-shaped truss snow-resisting net for protecting bridge from blowing snow |
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| Country | Link |
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| CN (1) | CN113668366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846230A (en) * | 2024-03-07 | 2024-04-09 | 廊坊康平空调制造有限公司 | Large roof sweeping and snow removing system and application method thereof |
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| JP2001248116A (en) * | 2000-03-03 | 2001-09-14 | Nippon Parts Center:Kk | Preventing fence against flying snow or the like |
| JP2006177142A (en) * | 2005-11-11 | 2006-07-06 | Nippon Parts Center:Kk | Highly efficient fence for preventing snow from scattering |
| CN203320430U (en) * | 2013-05-13 | 2013-12-04 | 新疆交通科学研究院 | Wavy snow blocking device |
| CN208830180U (en) * | 2018-07-17 | 2019-05-07 | 中铁西北科学研究院有限公司 | A kind of adjustable-angle formula snow wall |
| CN209368707U (en) * | 2018-11-01 | 2019-09-10 | 郑洪华 | A kind of highway bridge paravent |
| CN112030790A (en) * | 2020-07-20 | 2020-12-04 | 中国科学院西北生态环境资源研究院 | Wind and sand prevention device with curved surface net blocking structure and roadbed wind and sand protection system |
| CN216040623U (en) * | 2021-08-27 | 2022-03-15 | 新疆交通科学研究院 | Arc-shaped truss snow-resisting net for protecting bridge from blowing snow |
-
2021
- 2021-08-27 CN CN202110995595.9A patent/CN113668366A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248116A (en) * | 2000-03-03 | 2001-09-14 | Nippon Parts Center:Kk | Preventing fence against flying snow or the like |
| JP2006177142A (en) * | 2005-11-11 | 2006-07-06 | Nippon Parts Center:Kk | Highly efficient fence for preventing snow from scattering |
| CN203320430U (en) * | 2013-05-13 | 2013-12-04 | 新疆交通科学研究院 | Wavy snow blocking device |
| CN208830180U (en) * | 2018-07-17 | 2019-05-07 | 中铁西北科学研究院有限公司 | A kind of adjustable-angle formula snow wall |
| CN209368707U (en) * | 2018-11-01 | 2019-09-10 | 郑洪华 | A kind of highway bridge paravent |
| CN112030790A (en) * | 2020-07-20 | 2020-12-04 | 中国科学院西北生态环境资源研究院 | Wind and sand prevention device with curved surface net blocking structure and roadbed wind and sand protection system |
| CN216040623U (en) * | 2021-08-27 | 2022-03-15 | 新疆交通科学研究院 | Arc-shaped truss snow-resisting net for protecting bridge from blowing snow |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846230A (en) * | 2024-03-07 | 2024-04-09 | 廊坊康平空调制造有限公司 | Large roof sweeping and snow removing system and application method thereof |
| CN117846230B (en) * | 2024-03-07 | 2024-05-10 | 廊坊康平空调制造有限公司 | Large roof sweeping and snow removing system and application method thereof |
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