CN110761223A - Rapid construction method of reinforced intelligent anti-collision guardrail for highway - Google Patents
Rapid construction method of reinforced intelligent anti-collision guardrail for highway Download PDFInfo
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- CN110761223A CN110761223A CN201911092807.1A CN201911092807A CN110761223A CN 110761223 A CN110761223 A CN 110761223A CN 201911092807 A CN201911092807 A CN 201911092807A CN 110761223 A CN110761223 A CN 110761223A
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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
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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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
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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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a rapid construction method of an enhanced intelligent anti-collision guardrail for a highway, which comprises the following steps: step 1, setting a concrete structure of the anti-collision guardrail, then setting a template, and prefabricating the anti-collision guardrail; step 2, installing the template, wherein a plurality of through holes are formed in the side edge of the template, so that a box body with a hollow structure and an open top end is formed; step 3, filling rubber pads in the concave parts of the corrugated steel plates, arranging a support at the bottom end, penetrating through the stainless steel pipe and placing the stainless steel pipe in the box body; the convex surface of the corrugated steel plate faces the front-end main template; and 4, pouring concrete into the box body, dismantling the template after pouring is finished to obtain the prefabricated anti-collision guardrail, conveying the prefabricated anti-collision guardrail to a construction installation point for installation, butting adjacent stainless steel pipes, and arranging an impact alarm sensing module at the rear end of the anti-collision guardrail at a certain distance, so that the intelligent anti-collision guardrail is obtained.
Description
Technical Field
The invention relates to the field of guardrail construction, in particular to a rapid construction method of a reinforced intelligent anti-collision guardrail for a highway.
Background
The construction technical field at highway anticollision barrier, the point that conventional construction mode was generally established the guardrail earlier at the side of highway is fixed a position, control reinforcing bar interval and linear through the control method of acting as go-between, but the process is comparatively loaded down with trivial details, and the control method of acting as go-between still receives the wind-force influence easily and leads to fixing a position inaccurate, delay whole construction period, the later stage is setting up the template according to the difference in highway section, concrete placement carries out, the installation of template also need install fixed dismouting at the setpoint, relate to the anticollision barrier of bridge section, the fixed mounting of exterior sheathing is then trouble very, construction cycle has been prolonged greatly.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a rapid construction method of the reinforced intelligent highway crash barrier, which effectively improves the construction speed and simultaneously enhances the crash resistance and the energy absorption of the crash barrier.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a method for quickly constructing a reinforced intelligent crash barrier for highways, comprising the steps of:
And 2, fixing the bottom template, respectively installing the side templates, arranging a plurality of through holes longitudinally arranged along the side templates at the butt joint of the sub templates, and respectively installing main templates on two sides of the side templates to form the box body with a hollow structure with an opening at the top end.
Step 3, selecting a corrugated steel plate with the length matched with that of the box body in the step 2, filling rubber pads in the concave positions of the corrugated steel plate, arranging a support at the bottom end of the corrugated steel plate, arranging through holes matched with the through holes in the positions, opposite to the through holes, of the corrugated steel plate and the rubber filling positions, and transversely arranging the processed corrugated steel plate in the box body; inserting a stainless steel pipe into the through hole and the through hole which are matched with the stainless steel pipe, and penetrating the stainless steel pipe through the box body; and the convex surface of the corrugated steel plate faces the front end of the main template.
And 4, pouring concrete into the box body, dismantling the template after pouring is finished to obtain the prefabricated anti-collision guardrail, conveying the prefabricated anti-collision guardrail to a construction installation point for installation, butting the adjacent stainless steel pipes, and arranging an impact alarm induction module at the rear end of the anti-collision guardrail at a certain distance so as to obtain the intelligent anti-collision guardrail.
Preferably, the main template is arranged in an L shape, an included angle of 15-20 degrees is formed between one horizontal end of the main template and the ground, a connecting plate is arranged between the main template and the bottom template, and the width of the connecting plate is 3-5 cm; and a convex block close to the top end of the main template is arranged at the vertical end of the main template at the rear end.
Preferably, the connection structure of the sub-templates is as follows: the split die plates are respectively a main split die plate and a sub split die plate, a cavity is arranged at the joint of the main split die plate and the sub split die plate, and an inserting plate matched with the cavity is arranged at the position, opposite to the cavity, of the sub split die plate.
Preferably, the concrete structure of the crash barrier installation in step 4 is: the anti-collision guardrail comprises a main template, a connecting plate and a cavity formed by bottom templates, wherein the cavity is formed by the main template, the cavity is formed by the bottom templates, a fixing plate is arranged on the installation base, the fixing plate is matched with the installation base in a stepped mode and is arranged on the installation base, a plurality of first installation holes are formed in the installation base, a second installation hole matched with the first installation hole is formed in the fixing plate and penetrates through the first installation hole and the second installation hole through bolts to fix the anti-collision guardrail, and reinforcing ribs for connecting stepped ends are arranged between the second installation holes.
Preferably, the crash barrier transversely sets up many crash pads towards one side of highway, set up a plurality of elastic bulge on the crash pad.
Preferably, the specific structure of the scaffold in step 3 is as follows:
a plurality of chassis: the underframe is U-shaped and is transversely arranged at the bottom end of the corrugated steel plate;
the connecting rod, it sets up to cross type pole, the first end of connecting rod runs through the bottom of chassis, the second end of connecting rod is fixed on the wave form steel sheet, and is adjacent the second end crisscross setting of connecting rod is in the both sides of wave form steel sheet.
Preferably, the collision warning sensing module in step 4 is arranged in a groove at the rear end of the collision guardrail opposite to the bump, 5-8 collision guardrails are provided with one collision warning sensing module, the collision warning sensing module is connected to a traffic management platform, and the collision warning sensing module is used for sensing and positioning the collision force applied to the collision guardrail 5-10 meters around and sending the force applied to the collision force and the positioning of the force-applying point to the traffic management platform.
The invention at least comprises the following beneficial effects:
the size of the guardrail is determined, and the guardrail is prefabricated by means of template assembly and concrete pouring, so that the mass production of the guardrail is facilitated, the installation progress in the same time is ensured, and the overall construction progress is improved; the template passes through the master template, the mode of combination is assembled to side form board and die block board, be favorable to pouring the quick formation of cavity, through filling the rubber pad in corrugated steel plate depressed place, do benefit to the buffering dynamics to the vehicle when improving the whole atress of corrugated steel plate, through inserting a plurality of nonrust steel pipes respectively the through-hole, in the through-hole, make from the top down a plurality of nonrust steel pipes that set up constitute integratively with whole pouring type behind concrete placement, be convenient for hoist prefabricated anticollision barrier through nonrust steel pipe, the butt joint through nonrust steel pipe makes adjacent anticollision barrier connect simultaneously, it is more convenient laborsaving. Set up striking warning response module through every anticollision barrier's in the determining deviation rear end, be convenient for and the butt joint of traffic management platform, thereby quick effectual processing traffic accident, hoist and mount after through prefabricating earlier, and set up the wave form steel sheet after handling in prefabricated anticollision barrier, make whole anticollision barrier's construction cycle not only shorten greatly, construction speed has effectively been improved, anticollision barrier crashworthiness can be strengthened simultaneously and the effect of absorbed energy, neither easily by crashing, simultaneously can play fine guard action to vehicle and driver and crew again.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the fixed structure of the crash barrier of the present invention;
FIG. 2 is a schematic structural view of the template of the present invention;
FIG. 3 is a plan view of the corrugated steel plate according to the present invention;
FIG. 4 is a schematic structural diagram of the daughter board of the present invention;
fig. 5 is a schematic structural view of the stent of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-3, the invention provides a rapid construction method of a reinforced intelligent anti-collision guardrail for a road, which comprises the following steps:
And 2, fixing the bottom template 10, respectively installing the side templates 12, arranging a plurality of through holes 13 longitudinally arranged along the side templates 12 at the joint of the sub templates, and respectively installing the main templates 11 on two sides of the side templates 12, thereby forming the box body with a hollow structure with an opening at the top end.
Step 3, selecting a corrugated steel plate 14 matched with the box body in the step 2 in length, filling rubber pads 15 in the concave positions of the corrugated steel plate 14, arranging a support 16 at the bottom end of the corrugated steel plate 14, arranging through holes matched with the through holes 13 in the positions, opposite to the through holes 13, of the corrugated steel plate 14 and the rubber filling positions, and then transversely arranging the processed corrugated steel plate 14 in the box body; inserting a stainless steel pipe 17 into the through hole 13 and the through hole which are matched with the stainless steel pipe 17, and penetrating the box body; wherein the convex side of the corrugated steel plate 14 faces the front end of the main template 11.
And 4, pouring concrete into the box body, dismantling the template 1 after pouring is finished, obtaining the prefabricated anti-collision guardrail 100, conveying the prefabricated anti-collision guardrail 100 to a construction installation point for installation, butting the adjacent stainless steel pipes 17, and arranging an impact alarm sensing module at the rear end of the anti-collision guardrail 100 at a certain distance, so that the intelligent anti-collision guardrail 100 is obtained.
In the scheme, the size of the guardrail is determined firstly, and the guardrail is prefabricated in a form of template 1 assembling and concrete pouring, so that the mass production of the guardrail is facilitated, the installation progress in the same time is ensured, and the overall construction progress is further improved; template 1 is through master template 11, the mode of combination is assembled to side form 12 and die block board 10, be favorable to pouring the quick formation of cavity, through filling rubber pad 15 in corrugated steel plate 14 depressed place, do benefit to the buffering dynamics to the vehicle when improving the whole atress of corrugated steel plate 14, through inserting a plurality of stainless steel pipes 17 respectively through-hole 13, in the through-hole, make a plurality of stainless steel pipes 17 that set up from top to bottom constitute integratively with whole pouring type behind concrete placement, be convenient for hoist prefabricated crash barrier 100 through stainless steel pipe 17, make adjacent crash barrier 100 connect through stainless steel pipe 17's butt joint simultaneously, it is more convenient laborsaving. Set up striking warning response module through every anticollision barrier 100's rear end in the determining deviation, be convenient for dock with traffic management platform, thereby quick effectual processing traffic accident, hoist and mount after through prefabricating earlier, and set up the wave form steel sheet 14 after handling in prefabricated anticollision barrier 100, make whole anticollision barrier 100's construction cycle not only shorten greatly, construction speed has effectively been improved, anticollision barrier 100 resistant crashworthiness can and the effect of absorbed energy have been strengthened simultaneously, neither easily by crashing, can play fine guard action to vehicle and driver and crew simultaneously again.
In a preferable scheme, the main template 11 is arranged in an L shape, an included angle of 15-20 degrees is formed between one horizontal end of the main template 11 and the ground, a connecting plate 18 is arranged between the main template 11 and the bottom template 10, and the width of the connecting plate 18 is set to be 3-5 cm; and a convex block close to the top end of the main template 11 is arranged at the vertical end of the main template 11 at the rear end.
In the above scheme, the main template 11 is set to be of an L-shaped structure, so that the horizontal end of the main template and the bottom template 10 form a cavity, thereby facilitating the formation of the base of the crash barrier 100, and the bending part of the main template 11 is set to be in round corner transition so as to reduce the concentrated stress. Through the width that sets up connecting plate 18, and then confirm the height of anticollision barrier 100 base to guarantee the base to the stable importance of anticollision barrier 100, the setting of lug is located the box, thereby does benefit to one side that anticollision barrier 100 deviates from the highway and forms the recess, thereby is convenient for place striking warning response module.
In a preferred scheme, the connection structure of the sub-templates is as follows: the split templates are respectively a main split template 1211 and a sub split template 1221, a cavity 123 is arranged at the joint of the main split template 1211 and the sub split template 1221, and an inserting plate 124 matched with the cavity 123 is arranged at the position of the sub split template 1221 opposite to the cavity 123.
In the above scheme, as shown in fig. 4, the split templates are arranged as two spliced and spliced character templates 1, so that the stainless steel pipe 17 can be conveniently mounted and the templates 1 can be conveniently dismounted, the main split template 1211 and the sub split template 1221 can be butted by inserting the split templates into the cavity 123, the mounting structure is simple and convenient, and the dismounting and the assembling are facilitated.
In a preferred embodiment, the specific structure for installing the crash barrier 100 in step 4 is: the utility model discloses an anticollision barrier 100, including the die block board 11, connecting plate 18 and the cavity that the die block board 10 constitutes the installation base 19 of anticollision barrier 100, set up fixed plate 20 on the installation base 19, fixed plate 20 be with the notch cuttype lock of installation base 19 adaptation is in on the installation base 19, set up a plurality of first mounting holes on the installation base 19, set up on the fixed plate 20 with the second mounting hole of first mounting hole adaptation runs through the bolt first mounting hole and second mounting hole, with fixed anticollision barrier 100, the outside of fixed plate 20 is located adjacently set up the strengthening rib 21 of connecting the ladder end between the second mounting hole.
In the above solution, the connection between the main template 11 and the bottom template 10 through the connecting plate 18 creates a cavity between the bottom of the main template 11 and the bottom template 10, thereby forming a base of the crash barrier 100, facilitating the fixation of the crash barrier 100 through the base, by arranging the fixing plate 20 adapted to the base on the base formed by concrete in the cavity, the bending of the fixing plate 20 is at the height of the base, thereby making one end of the fixing plate 20 attached to the top end of the base, the other end of the fixing plate 20 attached to the ground, and penetrating through the first mounting hole and the second mounting hole through bolts or other fixing devices, and the second mounting hole and the ground, thereby firmly fixing the crash barrier 100 at the side of the road, so as to ensure the usability of the crash barrier 100, by obliquely arranging the reinforcing rib 21 connected to the step end of the fixing plate 20 at one side of the fixing plate 20 attached to the ground, thereby ensuring stability of the crash barrier 100 when subjected to an impact.
In a preferred embodiment, a plurality of crash pads 22 are transversely disposed on one side of the crash barrier 100 facing the road, and a plurality of elastic protrusions 23 are disposed on the crash pads 22.
In the above-mentioned scheme, through set up the crash pad 22 in the outside of crash barrier 100, prevent that the vehicle direct contact is hard concrete, play the guard action to the automobile body of vehicle through the setting of crash pad 22 to through the combination of the setting of elastic bulge 23 and crash pad 22, the cushioning effect that has to the vehicle impact, reduce the severity of vehicle.
In a preferred embodiment, the specific structure of the stent 16 in step 3 is as follows:
a plurality of chassis 160: the bottom frame 160 is arranged in a U shape and is transversely arranged at the bottom end of the corrugated steel plate 14;
the connecting rod 161 is a cross-shaped rod, a first end of the connecting rod 161 penetrates through the bottom end of the base frame 160, a second end of the connecting rod 161 is fixed on the corrugated steel plate 14, and second ends of the adjacent connecting rods 161 are arranged on two sides of the corrugated steel plate 14 in a staggered mode.
In the above scheme, as shown in fig. 5, through will the chassis 160 sets up to the U type structure, more does benefit to the steady support wave form steel plate 14 does benefit to wave form steel plate 14 when concrete placement shaping, guarantees the position settlement of wave form steel plate 14, connecting rod 161 is the cross setting, and the connecting rod 161 stable connection of being convenient for is at the top of U type chassis 160, and adjacent crisscross connected mode for connecting rod 161 is more stable to wave form steel plate 14's joint support, and whole support 16 connection structure is simple.
In a preferable scheme, the collision warning sensing module in step 4 is disposed in a groove at the rear end of the crash barrier 100 opposite to the bump, 5-8 crash barriers 100 are provided with one collision warning sensing module, the collision warning sensing module is connected to a traffic management platform, and the collision warning sensing module is configured to sense and locate collision force applied to the crash barrier 100 of 5-10 meters around, and send the force applied to the collision force and the location of the force applied point to the traffic management platform.
In the scheme, the collision alarm sensing module is arranged at the position of the central anti-collision guardrail 100 within the adjacent range of 5-10 meters, the collision alarm sensing module can be used for sensing and monitoring the stress and positioning information of the stress point, so that the traffic part can be helped to quickly position the place where the traffic accident happens and the degree of the traffic accident, and the traffic management platform can make simple prejudgment after receiving the information, thereby being convenient for taking effective countermeasures in the shortest time.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. A rapid construction method of an enhanced intelligent anti-collision guardrail for a highway comprises the following steps:
step 1, firstly, setting the height and the specific structure of an anti-collision guardrail according to a pre-judged road condition, and manufacturing a template according to the set anti-collision guardrail; the template comprises a bottom template, a main template and a side template; the side templates are symmetrically arranged on two sides of the bottom template, the main template is symmetrically arranged on two sides of the side templates, and each side template consists of two sub templates;
step 2, fixing the bottom template, respectively installing the side templates, arranging a plurality of through holes longitudinally arranged along the side templates at the butt joint of the sub templates, and respectively installing main templates on two sides of the side templates to form a box body with a hollow structure and an opening at the top end;
step 3, selecting a corrugated steel plate with the length matched with that of the box body in the step 2, filling rubber pads in the concave positions of the corrugated steel plate, arranging a support at the bottom end of the corrugated steel plate, arranging through holes matched with the through holes in the positions, opposite to the through holes, of the corrugated steel plate and the rubber filling positions, and transversely arranging the processed corrugated steel plate in the box body; inserting a stainless steel pipe into the through hole and the through hole which are matched with the stainless steel pipe, and penetrating the stainless steel pipe through the box body; the convex surface of the corrugated steel plate faces the front end of the main template;
and 4, pouring concrete into the box body, dismantling the template after pouring is finished to obtain the prefabricated anti-collision guardrail, conveying the prefabricated anti-collision guardrail to a construction installation point for installation, butting the adjacent stainless steel pipes, and arranging an impact alarm induction module at the rear end of the anti-collision guardrail at a certain distance so as to obtain the intelligent anti-collision guardrail.
2. The rapid construction method of the reinforced intelligent crash barrier for the highway according to claim 1, wherein the main templates are arranged in an L shape, the horizontal end of the main templates forms an included angle of 15-20 degrees with the ground, a connecting plate is arranged between the main templates and the bottom template, and the width of the connecting plate is 3-5 cm; and a convex block close to the top end of the main template is arranged at the vertical end of the main template at the rear end.
3. The rapid construction method of the reinforced road intelligent anti-collision guardrail of claim 1, wherein the concrete structure of the connection of the sub-formworks is as follows: the split die plates are respectively a main split die plate and a sub split die plate, a cavity is arranged at the joint of the main split die plate and the sub split die plate, and an inserting plate matched with the cavity is arranged at the position, opposite to the cavity, of the sub split die plate.
4. The rapid construction method of the reinforced road intelligent anti-collision guardrail of claim 1, wherein the concrete structure of the step 4 is as follows: the anti-collision guardrail comprises a main template, a connecting plate and a cavity formed by bottom templates, wherein the cavity is formed by the main template, the cavity is formed by the bottom templates, a fixing plate is arranged on the installation base, the fixing plate is matched with the installation base in a stepped mode and is arranged on the installation base, a plurality of first installation holes are formed in the installation base, a second installation hole matched with the first installation hole is formed in the fixing plate and penetrates through the first installation hole and the second installation hole through bolts to fix the anti-collision guardrail, and reinforcing ribs for connecting stepped ends are arranged between the second installation holes.
5. The rapid construction method of the reinforced road intelligent crash barrier according to claim 2, wherein a plurality of crash pads are transversely arranged on one side of the crash barrier facing the road, and a plurality of elastic protrusions are arranged on the crash pads.
6. The rapid construction method of the reinforced road intelligent anti-collision guardrail of claim 1, wherein the specific structure of the bracket in the step 3 is as follows:
a plurality of chassis: the underframe is U-shaped and is transversely arranged at the bottom end of the corrugated steel plate;
the connecting rod, it sets up to cross type pole, the first end of connecting rod runs through the bottom of chassis, the second end of connecting rod is fixed on the wave form steel sheet, and is adjacent the second end crisscross setting of connecting rod is in the both sides of wave form steel sheet.
7. The rapid construction method of the reinforced intelligent anti-collision guardrail of claim 2, wherein the collision warning sensing module in step 4 is arranged in a groove at the rear end of the anti-collision guardrail opposite to the bump, and 5-8 anti-collision guardrails are provided with one collision warning sensing module, the collision warning sensing module is connected to a traffic management platform and is used for sensing and positioning the collision force applied to the 5-10 m surrounding anti-collision guardrails and sending the force magnitude of the collision force and the positioning of the force point to the traffic management platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092807.1A CN110761223B (en) | 2019-11-11 | 2019-11-11 | Rapid construction method of reinforced intelligent anti-collision guardrail for highway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092807.1A CN110761223B (en) | 2019-11-11 | 2019-11-11 | Rapid construction method of reinforced intelligent anti-collision guardrail for highway |
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| CN110761223A true CN110761223A (en) | 2020-02-07 |
| CN110761223B CN110761223B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911092807.1A Active CN110761223B (en) | 2019-11-11 | 2019-11-11 | Rapid construction method of reinforced intelligent anti-collision guardrail for highway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411370A (en) * | 2020-11-20 | 2021-02-26 | 上海市政工程设计研究总院（集团）有限公司 | Bridge anti-collision guardrail connecting device and bridge |
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| CN204174555U (en) * | 2014-10-31 | 2015-02-25 | 安徽达尔智能控制系统有限公司 | A kind of intelligent-induction location highway barrier |
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| CN112411370A (en) * | 2020-11-20 | 2021-02-26 | 上海市政工程设计研究总院（集团）有限公司 | Bridge anti-collision guardrail connecting device and bridge |
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| Publication number | Publication date |
|---|---|
| CN110761223B (en) | 2022-03-18 |
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