CN113512974A - Guardrail with buffer device and installation method - Google Patents
Guardrail with buffer device and installation method Download PDFInfo
- Publication number
- CN113512974A CN113512974A CN202111029449.7A CN202111029449A CN113512974A CN 113512974 A CN113512974 A CN 113512974A CN 202111029449 A CN202111029449 A CN 202111029449A CN 113512974 A CN113512974 A CN 113512974A
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- Prior art keywords
- base
- guardrail
- top plate
- buttress
- vertical arm
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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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
-
- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
-
- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0476—Foundations
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides a guardrail with a buffer device and an installation method, belongs to the field of road and bridge engineering, and particularly relates to a guardrail capable of buffering automobile impact force. The curb of mainly solving current bridge or road retaining wall embankment exposes highly unsatisfied new standard requirement, installs the problem that the guardrail has the defect additional. The device mainly comprises a base, a vertical arm and a cross beam, wherein the base is arranged at the position close to a roadway on the side of a sidewalk, the base is provided with a buffer device, and the vertical arm is elastically connected with the base. When the crossbeam receives the vehicle impact, drive the roof through standing the arm and rotate around the hinge, roof compression spring cushions the impact of vehicle. The guardrail installation does not occupy the effective width of roadway, and the impact of vehicle can be cushioned in the elastic coupling, alleviates the damage of vehicle and guardrail.
Description
Technical Field
The invention relates to a guardrail with a buffer device and an installation method, belongs to the field of road and bridge engineering, and particularly relates to a guardrail capable of buffering automobile impact force.
Background
The curb stone arranged between a motor vehicle lane and a human road of an urban road is generally 15-20 cm in height, a sidewalk is arranged on the outer side of an urban bridge generally, the rule in the design Specification of urban bridges (CJJ 11-2011) is that the curb stone is preferably 25-40 m higher than the road surface of the vehicle lane, the rule adopts 'suitable' and non-mandatory requirements, the height of the curb stone of the road is 15-20 cm, the height of the curb stone of the bridge is 25-40 cm, a transition section with a certain length is required at the joint of the road and the bridge, the larger the height difference is, the longer the transition section is, the larger the exposed height of the curb stone is, the attractiveness is avoided, therefore, designers generally adopt the lower limit of the specification of 25cm, namely, the specification requirement is met, and the transition and attractiveness problems are solved well. In 2018, after a Chongqing bus fell into the river after 10 months, related departments attach attention, in 2019, a housing and urban and rural construction department partially revise the specification, and design a city main road or a secondary main road with the speed of more than or equal to 50 km/h; the height of the temporary space is more than 3.0m and less than 6.0m or the water depth is more than 2.0m and less than 5.0m, an anti-collision guardrail is suitable to be arranged outside the roadway, when only the curb stone is separated from the sidewalk, the height of the curb stone is not less than 40cm, the specification of the curb stone is not less than 40cm, the design is strictly executed, and the design is executed according to the specification in the actual road design work for the sidewalk in the form of a retaining wall embankment with the temporary space height of more than 3.0 m.
The newly-built bridge is not designed according to the height of 40cm, but a certain bridge is not connected with a road for enough length, for example, the bridge head of the bridge is immediately followed by a small intersection, the height of a connection section is changed too fast, the bridge is not attractive and safe, and people with the exposed height of 40cm of the kerbstone walk on the edge of the bridge with a psychological burden. The general curb of current bridge exposes highly 25cm, changes 40cm high curb and reforms transform the pavement, and the pavement railing height just can not satisfy 1.1m minimum height that the specification required, and the railing also needs to be changed together, and this change that just causes bridge structures big needs carry out structural load checking calculation. The common practice of current bridge is to install the guardrail on the roadway near curb, and circular or square stand adopts expansion bolts to fix on the roadway, and horizontal wave form breast board (the other commonly used of highway) is installed to stand upper portion, and this kind of method meets the standard requirement from the form, but has some defects: the guardrail upright post arranged on the side of the roadway is generally fixed on the pavement of the roadway by adopting a flange plate and expansion bolts, the holding and wrapping force of a bridge deck pavement layer is poor, particularly the pulling resistance of the expansion bolts is low, the vehicle can not provide enough resistance when impacting the guardrail, and even the expansion bolts can not be loosened after daily vehicle wiping and impacting the guardrail for a long time. Secondly, the upright columns are arranged at the sides of the roadway, the guardrail occupies the effective width of the roadway, and if the width of the roadway on the bridge floor is designed according to the standard lane width, no margin is reserved (generally designed according to the specified width), and the guardrail cannot occupy the lane width well. And thirdly, the barrier plate of the guardrail is of a rigid structure, so that the guardrail and the vehicle can be greatly damaged when the vehicle collides.
Disclosure of Invention
The purpose of the invention is: the utility model provides a take buffer's guardrail, the curb of mainly solving current bridge or road retaining wall embankment exposes highly unsatisfied new standard requirement, installs the problem that the guardrail has the defect additional. The device mainly comprises a base, a vertical arm and a cross beam, wherein the base is arranged at the position close to a roadway on the side of a sidewalk, the base is provided with a buffer device, and the vertical arm is elastically connected with the base. The beneficial effects are that: the guardrail does not occupy the effective width of roadway, and the impact of vehicle can be cushioned in the elastic connection, alleviates the damage of vehicle and guardrail.
The invention is realized by the following technologies: take buffer's guardrail, the position that is close to the roadway in bridge pavement sets up the guardrail, the guardrail mainly by base 1, found arm 2, crossbeam 3 and constitute, base 1 is the box form of cuboid, base 1 is including establishing lateral wall 4 all around, establishing bottom plate 5 in the bottom, establish roof 6 at the top, establish spring 7 in the box, be equipped with axle bed 8 on a lateral wall 4, roof 6 is equipped with joint tongue 9, joint tongue 9 adopts hinge 10 articulated with the combination of axle bed 8, roof 6 can rotate on base 1 around hinge 10. The vertical arm 2 is fixed on the top surface of the top plate 6, the cross beam 3 is arranged at the upper end of the vertical arm 2, when the cross beam 3 is impacted by a vehicle, the vertical arm 2 drives the top plate 6 to rotate around the hinge shaft 8, and the top plate 6 compresses the spring 7 to buffer the impact force of the vehicle.
The base 1 is installed on one side, close to a sidewalk, of the edge of a curb 10, a mortar layer 12 is arranged between the bottom surface of the base 1 and the base 11, the height of the base 1 is adjusted through a wedge-shaped cushion block 13, the top surface of a top plate 6 is flush with the top surface of the curb 10, a fixing bump 14 is arranged on the outer edge of a bottom plate 5 of the base 1, a mounting hole is formed in the fixing bump 14, and the fixing bump is fixed with the base 11 through a fixing bolt 15.
The foundation comprises a foundation base 1, and is characterized in that a buttress 16 is arranged around the foundation base 1, the buttress 16 is cast-in-place concrete, and buttress steel bars 17 of the buttress 16 are welded and anchored with steel bars in a foundation 11.
The top of the vertical arm 2 is provided with a vertical arm ring 18, and the cross beam 3 penetrates into the ring and is fixed by a fastening screw 19.
The base 1 set up one every 1~3 meters, crossbeam 3 series connection base 1, crossbeam 3 breaks at bridge expansion joint department, two bases 1 are set up side by side in the department of breaking.
A rubber ring 20 is arranged in a gap between the base 1 and the top plate 6, and a sealing rubber layer 21 is arranged at the outer edge of the gap.
The base 1 is a steel finished product manufactured in a factory, and the cross beam 3 is a steel pipe.
The invention provides a guardrail with a buffer device and an installation method, wherein the installation steps are as follows:
a. accurately paying off the position where the guardrail is ready to be installed, determining the position of the base 1 and accurately determining the hole position of the fixed bump 14;
b. drilling a mounting and fixing bump 14 hole on the substrate 11 by using an electric drill, and inserting a fixing bolt 15;
c. binding buttress steel bars 17 on the periphery of the base 1, and welding and anchoring the buttress steel bars and the steel bars in the base 11;
d. placing a wedge-shaped cushion block 13 at the position of the prepared installation base 1, and paving mortar of a base mortar layer 12;
e. sleeving a mounting hole of a fixing lug 14 of the base 1 on a fixing bolt 15, and adjusting a wedge-shaped cushion block 13 to enable the top surface of the top plate 6 to be flush with the top surface of the curb 10;
f. tightening the nut of the fixing bolt 15 to fix the base 1;
g. erecting a buttress 16 template, and pouring buttress 16 concrete;
h. a sealing glue layer 21 is filled in a gap between the base 1 and the top plate 6;
i. the beam 3 is penetrated into the vertical arm ring 18, and the position is adjusted to fix the beam 3 by adopting a fastening screw 19;
j. and (4) brushing anti-rust primer and decorative finish.
Drawings
FIG. 1 is a schematic view of the present invention in use on a bridge;
FIG. 2 is a schematic view of the present invention used in a retaining wall embankment;
FIG. 3 is a top plan view of the present invention;
FIG. 4 is a cross-sectional view of the present invention (section A-A of FIG. 3);
FIG. 5 is a longitudinal sectional view of the present invention (section B-B in FIG. 3);
FIG. 6 is a bottom plan view of the present invention;
figure 7 is a longitudinal cross-sectional view of a break in the guardrail.
In the figure: 1-base, 2-vertical arm, 3-cross beam, 4-side wall, 5-bottom plate, 6-top plate, 7-spring, 8-axle seat, 9-hinge shaft, 10-curb stone, 11-base, 12-mortar layer, 13-wedge-shaped cushion block, 14-fixing lug, 15-fixing bolt, 16-buttress, 17-buttress steel bar, 18-vertical arm ring, 19-fastening screw, 20-rubber ring and 21-sealant layer.
Detailed Description
In order to better understand the present invention for those skilled in the art, the present invention will be further described with reference to fig. 1 to 7, and the contents of the embodiments are not intended to limit the present invention.
The invention is used for additionally arranging a guardrail between a roadway and a sidewalk of the existing bridge, solves the problem that the existing curb cannot meet the requirements of new specifications, and can also be used between the sidewalk and the roadway of a embankment with larger height difference outside a road retaining wall. The guardrail is installed on a sidewalk near a roadway, fig. 1 is a schematic view of the guardrail used for a bridge, and fig. 2 is a schematic view of the guardrail used for a retaining wall embankment. The guardrail provided by the invention is provided with a buffer device and mainly comprises a base 1, a vertical arm 2 and a cross beam 3, wherein the base 1 is in a cuboid box shape, the base 1 comprises side walls 4 arranged on the periphery, a bottom plate 5 arranged at the bottom, a top plate 6 arranged at the top and a spring 7 arranged in the box, a shaft seat 8 is arranged on one side wall 4, a connecting tenon 9 is arranged on the top plate 6, the connecting tenon 9 and the shaft seat 8 are combined and hinged by a hinge shaft 10, and the top plate 6 can rotate on the base 1 around the hinge shaft 10. The vertical arm 2 is fixed on the top surface of the top plate 6, the cross beam 3 is arranged at the upper end of the vertical arm 2, when the cross beam 3 is impacted by a vehicle, the vertical arm 2 drives the top plate 6 to rotate around the hinge shaft 8, and the top plate 6 compresses the spring 7 to buffer the impact force of the vehicle. FIG. 3 is a top plan view of the present invention, FIG. 3 is a top plan view looking down from above the guardrail in the base position; the cross-sectional view is shown in fig. 4, fig. 4 is a section a-a of fig. 3, and fig. 4 is a section taken in a direction perpendicular to the vehicle traveling direction; FIG. 5 is a longitudinal sectional view, FIG. 5 is a section B-B of FIG. 3, and FIG. 5 is a section parallel to the direction of travel; the bottom plan view of the invention is shown in fig. 6, fig. 6 being a horizontal sectional plan view looking down from the lower part of the top plate 6, showing the internal and external reinforcement structure of the foundation 1.
Base 1 is the steel finished product of mill's preparation, base 1's lateral wall 4, bottom plate 5 adopts the steel sheet preparation, have axle bed 8's lateral wall 4, will process out with the hole of the 9 complex grooves of joint tongue of roof 6 and installation hinge 10, roof 6 adopts the steel, roof 6 has the joint tongue 9 with the axle bed 8 articulated of base 1, found arm 2 and adopted the steel sheet preparation, the welding is at roof 6, the mounting height of guardrail has been decided to the height of standing arm 2, the guardrail mounting height uses 3 tops of crossbeam to be suitable for apart from the height 40~90cm of roadway, height according to base 1, adjustment clearance is reserved to base 1, the height of standing arm 2 is confirmed to the diameter of crossbeam 3. All steel parts are processed and then subjected to hot galvanizing treatment. The spring 7 is fixed on the bottom plate 5 of the base 1, the top plate 6 is combined with the base 1, and the hinge shaft 9 is inserted into the shaft seat 8, as shown in fig. 4, 5 and 6. The elasticity of the spring 7 is determined according to the anti-collision grade of the guardrail, the impact force corresponding to the driving speed can be designed according to the design specifications of road traffic safety facilities, and the elasticity of the spring 7 can be calculated according to the height of the guardrail. The base 1 has specifications of different heights so as to adapt to different installation heights on site. The beam 3 is a steel pipe, if the steel pipe needs to be lengthened, a sleeve pipe which is 10cm long and has an outer diameter slightly smaller than the inner diameter of the steel pipe of the beam 3 is sleeved in the steel pipe, and the sleeve pipe and the steel of the beam 3 are firmly welded.
The base 1 is installed at the edge of the kerbstone 10 and is close to one side of a sidewalk, and because the heights of different bridge kerbstones are different, the manufactured base 1 has specifications with different heights, and the specification that the base 1 is 10-20 mm lower than the actual height is selected during field installation. A base slurry layer 12 is arranged between the bottom surface of a base 1 and a base 11, the base slurry layer 12 is made of 1:2 cement mortar, when the base 1 is installed, a wedge-shaped cushion block 13 is adopted to adjust the height of the base 1, so that the top surface of a top plate 6 is flush with the top surface of a curb 10, a fixing bump 14 is arranged on the outer edge of a bottom plate 5 of the base 1, a mounting hole is formed in the fixing bump 14, the fixing bolt 15 is fixed with the base 11 through a fixing bolt 15, and the fixing bolt 15 is an expansion bolt with the diameter of M10-M14 and the length of 100-150 mm.
In order to ensure the stability of the guard rail, reinforced concrete is adopted to reinforce the periphery of the base 1, and the reinforced concrete is shown in figures 4, 5 and 6. The support pier 16 is arranged around the base 1, the support pier 16 is cast-in-place concrete, the concrete adopts C30, and the support pier steel bars 17 of the support pier 16 are welded and anchored with the steel bars in the base 11. If the bridge is the existing bridge, the buttress steel bars 17 cannot be pre-buried in the foundation 11, the surface layer concrete of the foundation 11 concrete of the bridge deck pavement can be chiseled, the buttress steel bars 17 and the steel bars of the pavement layer are welded together, the buttress steel bars 17 and the expansion bolts can be firmly welded on the foundation 11 concrete in an anchoring mode.
The beam 3 and the vertical arm 2 are assembled on the connecting site, the top of the vertical arm 2 is provided with a vertical arm ring 18, the vertical arm ring 18 is made of steel, and the vertical arm 2 is welded during factory manufacturing. After the on-site base 1 is installed, the cross beam 3 penetrates into the ring and is fixed by the fastening screw 19.
The base 1 is the part that supports whole guardrail, and base 1 sets up one every 1~3 meters, and crossbeam 3 establishes ties base 1, and crossbeam 3 breaks at the bridge expansion joint department, and two bases 1 are set up side by side in the department of breaking, see fig. 7. The guardrail is generally about 20m and is a first gear, and the double bases 1 are arranged at the disconnected position according to the method.
In order to prevent rainwater from entering the base 1, a rubber ring 20 is arranged in a gap between the base 1 and the top plate 6, the rubber ring 20 is embedded in the inner side of the side wall 4, the rubber ring 20 is tightly squeezed and sealed after the top plate 6 is in place, a sealing adhesive layer 21 is arranged on the outer edge of the gap, the sealing adhesive layer 21 is manually filled after the base 1 is installed, and the sealing adhesive layer 21 is made of polyurethane sealant.
The guardrail mounting method comprises the following mounting steps:
a. accurately paying off the position where the guardrail is ready to be installed, determining the position of the base 1 and accurately determining the hole position of the fixed bump 14, and if the existing bridge needs to firstly dismantle the sidewalk slab;
b. drilling a mounting and fixing bump 14 hole on the substrate 11 by using an electric drill, and inserting a fixing bolt 15;
c. binding buttress steel bars 17 on the periphery of the base 1, and firmly welding the buttress steel bars 17 with the reserved steel bars of the base 11, if the existing bridge is adopted, the buttress steel bars 17 cannot be pre-embedded in the base 11, chiseling surface layer concrete of the base 11 concrete of bridge deck pavement, welding the buttress steel bars 17 with the steel bars of the pavement layer, or anchoring the concrete of the base 11 by adopting expansion bolts, and then firmly welding the buttress steel bars 17 with the expansion bolts;
d. placing a wedge-shaped cushion block 13 at the position of a prepared installation base 1, paving mortar of a base mortar layer 12, and slightly lowering the base 1 when placing;
e. sleeving a mounting hole of a fixing bump 14 of the base 1 on a fixing bolt 15, adjusting a wedge-shaped cushion block 13, knocking the wedge-shaped cushion block 13 from the side surface, and gradually jacking the base 1 to enable the top surface of the top plate 6 to be flush with the top surface of the curb 10;
f. tightening the nut of the fixing bolt 15 to fix the base 1;
g. erecting a buttress 16 template, pouring buttress 16 concrete, and vibrating the concrete tightly by adopting a vibrating plate;
h. filling a sealing glue layer 21 in a gap between the base 1 and the top plate 6, and scraping the top surface of the glue;
i. the beam 3 is penetrated into the vertical arm ring 18, and the position is adjusted to fix the beam 3 by adopting a fastening screw 19;
j. and (4) brushing anti-rust primer and decorative finish.
While the specification and drawings set forth herein are directed to particular embodiments, this disclosure is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
Claims (8)
1. The utility model provides a take buffer's guardrail sets up guardrail, characterized by in the position that bridge pavement is close to the roadway: the guardrail mainly comprises a base (1), vertical arms (2) and a cross beam (3), wherein the base (1) is in the shape of a cuboid box, the base (1) comprises side walls (4) arranged on the periphery, a bottom plate (5) arranged at the bottom, a top plate (6) arranged at the top and a spring (7) arranged in the box, one side wall (4) is provided with a shaft seat (8), the top plate (6) is provided with a connecting tenon (9), the connecting tenon (9) and the shaft seat (8) are combined and hinged through a hinge shaft (10), and the top plate (6) can rotate on the base (1) around the hinge shaft (10); the vertical arm (2) is fixed on the top surface of the top plate (6), the cross beam (3) is arranged at the upper end of the vertical arm (2), when the cross beam (3) is impacted by a vehicle, the vertical arm (2) drives the top plate (6) to rotate around the hinge shaft (8), and the top plate (6) compresses the spring (7) to buffer the impact force of the vehicle.
2. The guardrail with a buffering device as set forth in claim 1, wherein: base (1) install the curb edge near the one side of pavement, set up seat thick liquid layer (12) between the bottom surface of base (1) and basement (11), adopt wedge form cushion (13) adjustment base (1) the height, make roof (6) top surface and curb (10) top surface parallel and level, bottom plate (5) outer fringe of base (1) is equipped with fixed lug (14), have the mounting hole on fixed lug (14), adopt fixing bolt (15) and basement (11) fixed.
3. The guardrail with a buffering device as set forth in claim 1, wherein: the foundation comprises a foundation base (1), and is characterized in that a buttress (16) is arranged around the foundation base (1), the buttress (16) is cast-in-place concrete, and buttress steel bars (17) of the buttress (16) are welded and anchored with steel bars of a foundation (11).
4. The guardrail with a buffering device as set forth in claim 1, wherein: the top of the vertical arm (2) is provided with a vertical arm ring (18), and the cross beam (3) penetrates into the ring and is fixed by a fastening screw (19).
5. The guardrail with a buffering device as set forth in claim 1, wherein: the base (1) set up one every 1~3 meters, crossbeam (3) series connection base (1), crossbeam (3) are in bridge expansion joint department disconnection, disconnection department sets up two bases (1) side by side.
6. The guardrail with a buffering device as set forth in claim 1, wherein: a rubber ring (20) is arranged in a gap between the base (1) and the top plate (6), and a sealing rubber layer (21) is arranged at the outer edge of the gap.
7. The guardrail with a buffering device as set forth in claim 1, wherein: the base (1) is a steel finished product manufactured in a factory, and the cross beam (3) is a steel pipe.
8. A method of installing a guard rail with a buffering means as claimed in claim 1, wherein: the guardrail mounting steps are as follows:
a. accurately paying off the position where the guardrail is ready to be installed, determining the position of the base (1) and accurately determining the hole position of the fixed bump (14);
b. drilling a mounting and fixing bump (14) hole on the substrate (11) by using an electric drill, and inserting a fixing bolt (15);
c. binding buttress steel bars (17) at the periphery of the base (1), and firmly welding the buttress steel bars with the reserved steel bars of the base (11);
d. placing a wedge-shaped cushion block (13) at the position of the prepared installation base (1), and paving mortar of a base mortar layer (12);
e. sleeving a mounting hole of a fixing lug (14) of the base (1) on a fixing bolt (15), and adjusting a wedge-shaped cushion block (13) to enable the top surface of the top plate (6) to be flush with the top surface of the curb stone (10);
f. screwing down the nut of the fixing bolt (15) to fix the base (1);
g. erecting a buttress (16) template, and pouring buttress (16) concrete;
h. a sealing glue layer (21) is filled in a gap between the base (1) and the top plate (6);
i. the cross beam (3) penetrates into the vertical arm ring (18), and the position is adjusted by adopting a fastening screw (19) to fix the cross beam (3);
j. and (4) brushing anti-rust primer and decorative finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111029449.7A CN113512974A (en) | 2021-09-03 | 2021-09-03 | Guardrail with buffer device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111029449.7A CN113512974A (en) | 2021-09-03 | 2021-09-03 | Guardrail with buffer device and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113512974A true CN113512974A (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111029449.7A Pending CN113512974A (en) | 2021-09-03 | 2021-09-03 | Guardrail with buffer device and installation method |
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| Country | Link |
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| CN (1) | CN113512974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846557A (en) * | 2021-11-15 | 2021-12-28 | 重庆交通大学 | Bridge floor dual energy dissipation protective guard and installation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB294849A (en) * | 1928-01-24 | 1928-08-02 | Joseph Henry Ramsey | Safety guard rail supports |
| CN203904833U (en) * | 2014-04-27 | 2014-10-29 | 浙江益安建设有限公司 | Impact-proof bridge guardrail |
| CN206090298U (en) * | 2016-08-31 | 2017-04-12 | 浙江南湖建设有限公司 | Bridge safety guardrail |
| CN206438397U (en) * | 2017-01-17 | 2017-08-25 | 石伟 | A kind of Collison fence for bridge |
| CN207846208U (en) * | 2017-12-06 | 2018-09-11 | 刘平 | Collison fence for bridge device |
| CN208594476U (en) * | 2018-05-11 | 2019-03-12 | 薛宏霞 | A kind of new road Bridge guardrail clamp device |
| CN208633020U (en) * | 2018-06-29 | 2019-03-22 | 广西远长公路桥梁工程有限公司 | A kind of road traffic guardrail for capableing of snubber shock |
| CN212505849U (en) * | 2020-07-20 | 2021-02-09 | 辽宁忠旺铝合金精深加工有限公司 | A beam-column aluminum alloy highway bridge guardrail |
-
2021
- 2021-09-03 CN CN202111029449.7A patent/CN113512974A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB294849A (en) * | 1928-01-24 | 1928-08-02 | Joseph Henry Ramsey | Safety guard rail supports |
| CN203904833U (en) * | 2014-04-27 | 2014-10-29 | 浙江益安建设有限公司 | Impact-proof bridge guardrail |
| CN206090298U (en) * | 2016-08-31 | 2017-04-12 | 浙江南湖建设有限公司 | Bridge safety guardrail |
| CN206438397U (en) * | 2017-01-17 | 2017-08-25 | 石伟 | A kind of Collison fence for bridge |
| CN207846208U (en) * | 2017-12-06 | 2018-09-11 | 刘平 | Collison fence for bridge device |
| CN208594476U (en) * | 2018-05-11 | 2019-03-12 | 薛宏霞 | A kind of new road Bridge guardrail clamp device |
| CN208633020U (en) * | 2018-06-29 | 2019-03-22 | 广西远长公路桥梁工程有限公司 | A kind of road traffic guardrail for capableing of snubber shock |
| CN212505849U (en) * | 2020-07-20 | 2021-02-09 | 辽宁忠旺铝合金精深加工有限公司 | A beam-column aluminum alloy highway bridge guardrail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846557A (en) * | 2021-11-15 | 2021-12-28 | 重庆交通大学 | Bridge floor dual energy dissipation protective guard and installation method |
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Application publication date: 20211019 |