CN113957797B - Assembled overhead road edge concrete rail guard construction steel mould - Google Patents
Assembled overhead road edge concrete rail guard construction steel mould Download PDFInfo
- Publication number
- CN113957797B CN113957797B CN202111237690.9A CN202111237690A CN113957797B CN 113957797 B CN113957797 B CN 113957797B CN 202111237690 A CN202111237690 A CN 202111237690A CN 113957797 B CN113957797 B CN 113957797B
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- Prior art keywords
- metal frame
- frame body
- stabilizing
- support
- supporting
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an assembled overhead road edge concrete guard rail construction steel mould, which comprises: a stabilizing seat; the metal frame body is arranged outside the stabilizing seat and is used for integrally constructing and supporting; the stabilizing component is arranged inside the metal frame body; the first connecting assembly is arranged outside the metal frame body; wherein, the stabilizing assembly includes: the first support component is arranged inside the metal frame body; the second supporting component is connected with the first supporting component and is used for being matched with the first supporting component to carry out internal stable support, the device is matched with the second supporting component through the internal first supporting component, a plurality of groups of stable structures are formed inside the device, the stable support of the whole structure is realized, meanwhile, the external first connecting component is matched with the second connecting component, and the stable connection and fixation of a plurality of groups of steel mould components are realized.
Description
Technical Field
The invention relates to the road construction industry, in particular to an assembled overhead road edge concrete guard rail construction steel mould.
Background
The overhead road is an urban space road composed of a series of bridges above the ground by more than 6m (net height plus bridge structure height), and compared with the underground road, the overhead road can bear passenger and cargo transportation and can be connected with the ground road, but the construction cost is cheaper than that of an underground railway. In contrast, the elevated road has wide vision, fresh air and comfortable driving.
In order to prevent the overhead road from rushing out when the accident happens to the vehicle, a concrete guard rail is arranged on the outer side of the overhead road, and when the conventional overhead road edge concrete guard rail is constructed, a simple device is mostly adopted for temporary construction and fixation, so that the stability is poor, and therefore, in order to solve the problem, the development of an assembled overhead road edge concrete guard rail construction steel mould is needed.
Disclosure of Invention
The invention aims to provide an assembled overhead road edge concrete guard rail construction steel die for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an assembled overhead road edge concrete rail guard construction steel form, the assembled overhead road edge concrete rail guard construction steel form includes:
a stabilizing seat;
the metal frame body is arranged outside the stabilizing seat and is used for integrally constructing and supporting;
the stabilizing component is arranged inside the metal frame body and used for supporting the inside of the metal frame body;
the first connecting assembly is arranged outside the metal frame body and used for fixedly connecting and combining a plurality of groups of metal frame bodies;
wherein, the stabilizing assembly includes:
the first support component is arranged inside the metal frame body;
and the second supporting component is connected with the first supporting component and is used for being matched with the first supporting component to carry out internal stable support.
Compared with the prior art, the invention has the beneficial effects that: this device reasonable in design, through inside first supporting component and second supporting component cooperation, the inside multiunit stable structure of constituteing realizes overall structure's stable support, simultaneously, outside first coupling assembling and second coupling assembling cooperation realize that multiunit steel mould component's stable connection is fixed, improved the not enough of current device, have higher practicality and market prospect, be fit for using widely on a large scale.
Drawings
Fig. 1 is a schematic diagram of the internal structure of an assembled elevated road edge concrete guard rail construction steel die.
Fig. 2 is a schematic view of the outer left side structure of an assembled elevated road edge concrete guard rail construction steel mold.
Fig. 3 is a schematic view of the outer right side structure of an assembled elevated road edge concrete guard rail construction steel form.
Fig. 4 is a schematic diagram of the back structure of an assembled overhead road edge concrete guard rail construction steel form.
Fig. 5 is a schematic structural view of a cushioning device in an assembled overhead road edge concrete guard rail construction steel mould.
In the figure: 1-stabilizing seat, 2-metal frame, 3-stabilizing component, 4-first supporting component, 5-second supporting component, 6-cushioning device, 7-first connecting component, 8-second connecting component, 9-filling port, 201-arc impact area, 202-tail support, 401-fixing frame, 402-first stabilizing plate, 403-second stabilizing plate, 404-reinforcing frame, 501-bracket plate, 502-connecting seat, 503-reinforcing strut, 504-third stabilizing plate, 505-fourth stabilizing plate, 601-base, 602-expansion frame, 603-chassis, 604-first buffer plate, 605-second buffer plate, 606-third buffer plate, 607-spring piece, 701-connecting slot bin, 702-magnetic slot, 703-inserting plate, 704-magnetic block, 705-stabilizing ring frame, 706-supporting frame, 707-reinforcing plate, 708-reinforcing beam, 709-reinforcing strut, 801-first groove, 802-second groove, 803-first bump, 804-second bump.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one embodiment of the present invention, an assembled elevated road edge concrete guard rail construction steel form includes: a stabilizing seat 1; the metal frame body 2 is arranged outside the stabilizing seat 1 and is used for integrally constructing and supporting; the metal frame body 2 is hollow; a stabilizing assembly 3, wherein the stabilizing assembly 3 is arranged inside the metal frame 2 and is used for supporting the inside of the metal frame 2; the first connecting assembly 4 is arranged outside the metal frame body 2 and is used for fixedly connecting and combining a plurality of groups of metal frame bodies 2; wherein the stabilizing assembly 3 comprises: a first support member 4, the first support member 4 being disposed inside the metal frame 2; and the second support assembly 5 is connected with the first support assembly 4 and is used for being matched with the first support assembly 4 to carry out internal stable support.
In one embodiment of the invention:
the first support assembly 4 includes: at least two holders 401, the holders 401 being disposed inside the metal frame 1; the first stabilizing plates 402 are arranged in the middle of the fixing frames 401 at two sides and are used for longitudinally supporting the inside of the metal frame body 2; a connecting slot (not shown) is also provided inside the first stabilising plate 402; at least two second stabilizing plates 403, the second stabilizing plates 403 also being connected to the mount 401; a plurality of reinforcement frames 404, wherein the reinforcement frames 404 are arranged outside the second stabilizing plate 403 and are used for supporting and reinforcing the outer part of the second stabilizing plate 403;
inside vertical first stabilizer 402 that sets up and the inside upper and lower both sides contact of metal framework 2, carry out vertical steady support, and second stabilizer 403 and a plurality of reinforcement frame 404 cooperate in step, carry out the connection support to outside first supporting component 4, reinforcement frame 404 and the second stabilizer 403 that the slope set up form triangle-shaped stable structure, further improve reinforcement stability.
In one embodiment of the invention:
the second support assembly 5 includes: at least three sets of bracket plates 501, the three sets of bracket plates 501 being disposed outside the first stabilizing plate 402 for outer side support of the metal frame 2; the three groups of the bracket plates 501 are obliquely arranged, and the lengths of the three groups of the bracket plates 501 are gradually increased from top to bottom; a connection seat 502 positioned outside the bracket plate 501 and used for stably connecting the bracket plate 501 with the metal frame body 2; a reinforcing strut 503, wherein the reinforcing strut 503 is arranged outside the adjacent connecting seat 502 and is used for stably fixing the adjacent connecting seat 502; at least two sets of third stabilizing plates 504, the third stabilizing plates 504 being connected to the second stabilizing plates 403 for longitudinal support of the inboard reinforcing struts 503; the third stabilizing plate 504 is connected to the outer reinforcing strut 503 through a connecting slot (not shown) on the inner side of the first stabilizing plate 402; a fourth stabilizing plate 505, wherein the fourth stabilizing plate 505 is connected with the third stabilizing plates 504 at two sides, and is used for connecting and supporting the third stabilizing plates 504;
the second supporting component 5 may be an outer inclined surface of the metal frame 2 for supporting, the three inner groups of bracket plates 501 and the first stabilizing plate 402 form a plurality of groups of triangular stabilizing structures, meanwhile, the reinforcing support rods 503 and the connecting seats 502 stably support the bracket plates 501, the third stabilizing plate 504 and the fourth stabilizing plate 505 stably support the reinforcing support rods 503, and the plurality of groups of stabilizing structures are matched;
in addition, the supporting rods fixedly arranged can replace the stabilizing assemblies 3, and multiple groups of components in the stabilizing assemblies 3 are matched to form a multiple group triangular stabilizing structure, so that the internal supporting effect is further improved.
In one embodiment of the invention:
the damping device 6 includes: a base 601, the base 601 being connected to the first stabilising plate 402; at least two telescoping racks 602 for cushioning support of the external components; a chassis 603 located outside the base 601; a first buffer plate 604, wherein the first buffer plate 604 is connected with the two side telescopic frames 602; a second buffer plate 605 and a third buffer plate 606 located outside the first buffer plate 604; at least four spring pieces 607, the spring pieces 607 being disposed in the middle of the first buffer plate 604, the second buffer plate 605 and the third buffer plate 606;
the damping device 6 is transversely arranged inside the metal frame body 2 and used for stabilizing and buffering and supporting when an external vehicle collides, the four spring pieces 607 are matched with the telescopic frames 602 at two sides to compensate elasticity when the impact is carried out, the first buffer plate 604, the second buffer plate 605 and the third buffer plate 606 are matched with the underframe 603, so that supporting and reinforcing when the impact is carried out are realized, and the integral breaking of the guard rail is prevented;
in addition, the cushioning device 6 can be replaced by increasing the concrete filling amount, and the cushioning device 6 can perform elastic compensation to prevent the whole protective fence from being damaged.
In one embodiment of the invention:
the first connection assembly 7 includes: at least two groups of connecting groove cabins 701, wherein the first connecting groove cabins 701 are arranged outside the metal frame body 2; a magnetic suction groove 702 positioned in the connecting groove bin 701 and used for magnetic suction connection of external components; the inserting plate 703 is also arranged outside the metal frame body 2 and is used for connecting and fixing a plurality of groups of components by matching with the connecting groove bin 701; the magnetic attraction block 704 is positioned in the inserting plate 703 and is used for being matched with the magnetic attraction groove 702 to carry out magnetic attraction fixation; a stabilizing ring frame 705, wherein the stabilizing ring frame 705 is arranged outside the metal frame body 2; at least two support frames 706, the support frames 706 being arranged inside the stabilizing ring frame 705 for connection support of external components; a reinforcement plate 707 located outside the stability ring frame 705; at least two reinforcing beams 708, the reinforcing beams 708 being disposed outside the metal frame 2; at least two reinforcement columns 709, the reinforcement columns 709 being connected to the reinforcement beams 708 for reinforcement longitudinal support of the external assembly in cooperation with the reinforcement tray 707;
when a plurality of groups of components are connected, the two groups of inserting plates 703 are correspondingly inserted into the outer side connecting groove cabins 701, the inner magnetic attraction blocks 704 and the inner parts of the magnetic attraction grooves 702 are in magnetic attraction fixation, the outer side connecting groove cabins 701 and the inserting plates 703 are transversely reinforced and fixed by the support frames 706 which are arranged in a staggered mode, and the outer side reinforcing plates 707, the reinforcing beams 408 and the reinforcing columns 709 are matched to longitudinally support and fix the support frames 706;
in addition, the first connecting component 7 can be replaced by the connecting pieces which are arranged in a matching way, and the outside of the first connecting component 7 is transversely and longitudinally supported in all directions, so that the stability of the connecting of a plurality of groups of components is further improved.
In one embodiment of the invention:
the assembled overhead road edge concrete rail guard construction steel mould still includes: an arc-shaped collision area 201 located outside the metal frame 2; a tail support 202 positioned outside the metal frame 2 for supporting the outside of the metal frame 2; the filling opening 9 is arranged outside the metal frame body 2 and is used for filling and guiding the concrete of the interlayer inside the metal frame body 2; the second connecting assembly 8 is arranged outside the metal frame body 2 and is used for connecting and fixing a plurality of groups of components by matching with the first connecting assembly 8;
the metal frame body 2 is internally provided with a hollow structure, after the fixation of a plurality of groups of components is completed, concrete filling can be carried out on an interlayer inside the metal frame body 2 through the filling opening 9, the overall quality is further increased, and the consumption of a steel structure is reduced.
In one embodiment of the invention:
the second connection assembly 8 includes: a first groove 801 and at least three second grooves 802, the first groove 801 and the three second grooves 802 being provided on an outer side of the metal frame 2; a first bump 803 and at least three second bumps 803, the first bump 803 and the at least three second bumps 803 being disposed on the other side of the exterior of the metal frame 2;
after the multiple groups of components are connected and fixed through the first connecting assembly 7, the grooves and the convex blocks on the two sides are matched, embedded and connected, so that the connection stability of the multiple groups of components is further improved.
To sum up, this device cooperates with second supporting component 5 through inside first supporting component 4, and the inside multiunit stable structure of constituteing realizes overall structure's stable support, simultaneously, outside first coupling assembling 7 cooperates with second coupling assembling 8, realizes the stable connection of multiunit steel mould component and fixes.
The working principle of the invention is as follows: the first stabilizing plate 402 vertically arranged inside is in contact with the upper side and the lower side of the inside of the metal frame body 2 to perform longitudinal stabilizing support, the second stabilizing plate 403 is synchronously matched with the plurality of reinforcing frames 404 to perform connecting support on the first supporting component 4 at the outer side, the reinforcing frames 404 obliquely arranged form a triangular stabilizing structure with the second stabilizing plate 403 to further improve the reinforcing stability, the second supporting component 5 can support the inclined surface outside the metal frame body 2, the three groups of inner supporting arm plates 501 and the first stabilizing plate 402 form a plurality of groups of triangular stabilizing structures, meanwhile, the reinforcing supporting rods 503 and the connecting seat 502 perform stabilizing support on the supporting arm plates 501, the third stabilizing plate 504 and the fourth stabilizing plate 505 form stabilizing support on the reinforcing supporting rods 503, the supporting rods fixedly arranged can replace the stabilizing component 3, the plurality of groups of components in the stabilizing component 3 are matched to form a plurality of triangular stabilizing structures, the inner supporting effect is further improved, the buffer device 6 is transversely arranged inside the metal frame body 2 and used for stabilizing and buffering support when an external vehicle is bumped, the four spring pieces are matched with the two side telescopic frames 602 to perform elastic compensation when the two side telescopic frames 602, the first buffer plate 604 and the whole buffer device 605 and the second buffer device can be used for preventing the buffer device from being broken and the whole frame 6 from being filled with the impact, and the buffer device is prevented from being damaged, and the buffer device is filled with the whole is capable of the buffer 6 is prevented from being broken;
when the multiunit component is connected, two sets of inserting plates 703 are correspondingly inserted into the inside of the outside connecting groove warehouse 701, the inside magnetic attraction blocks 704 and the inside of the magnetic attraction grooves 702 are magnetically attracted and fixed, the outside staggered supporting frame 706 is used for transversely reinforcing and fixing the two side connecting groove warehouses 701 and the inserting plates 703, the outside reinforcing plates 707, reinforcing beams 408 and reinforcing columns 709 are matched, the supporting frame 706 is longitudinally supported and fixed, the connecting piece which is arranged in a matching mode replaces the first connecting component 7, the outside of the first connecting component 7 is transversely and longitudinally supported in an omnibearing mode, stability of the multiunit component is further improved, after the multiunit component is fixedly connected through the first connecting component 7, grooves on two sides are matched and embedded with bumps, connection stability of the multiunit component is further improved, the inside of the metal frame 2 is hollow, after the multiunit component is fixedly arranged, concrete filling can be carried out to an inner interlayer of the metal frame 2 through the filling opening 9, the whole quality is further increased, and meanwhile, the steel structure consumption is reduced.
Claims (1)
1. The utility model provides an assembled overhead road edge concrete rail guard construction steel mould, its characterized in that, assembled overhead road edge concrete rail guard construction steel mould includes:
a stabilizing seat;
the metal frame body is arranged outside the stabilizing seat and is used for integrally constructing and supporting;
the stabilizing component is arranged inside the metal frame body and used for supporting the inside of the metal frame body;
the first connecting assembly is arranged outside the metal frame body and used for fixedly connecting and combining a plurality of groups of metal frame bodies;
wherein, the stabilizing assembly includes:
the first support component is arranged inside the metal frame body;
the second support component is connected with the first support component and is used for being matched with the first support component to carry out internal stable support;
the first support assembly includes:
the fixing frames are arranged in the metal frame body;
the first stabilizing plates are arranged in the middle of the fixing frames at two sides and used for longitudinally supporting the inside of the metal frame body;
at least two second stabilizing plates, which are also connected with the fixing frame;
the reinforcing frames are arranged outside the second stabilizing plate and used for supporting and reinforcing the outer part of the second stabilizing plate;
the second support assembly includes:
at least three groups of bracket plates, which are arranged outside the first stabilizing plate and used for supporting the outer side of the metal frame body;
the connecting seat is positioned outside the bracket plate and is used for stably connecting the bracket plate with the metal frame body;
the reinforcing support rod is arranged outside the adjacent connecting seat and used for stably fixing the adjacent connecting seat;
at least two groups of third stabilizing plates connected with the second stabilizing plates and used for longitudinally supporting the inner reinforcing support rods;
the fourth stabilizing plate is connected with the third stabilizing plates at the two sides and is used for connecting and supporting the third stabilizing plates;
the cushioning device includes:
the base is connected with the first stabilizing plate;
at least two telescopic frames for buffer support of the external assembly;
a chassis located outside the base;
the first buffer plate is connected with the telescopic frames at the two sides;
a second buffer plate and a third buffer plate positioned outside the first buffer plate;
the spring pieces are arranged in the middle of the first buffer plate, the second buffer plate and the third buffer plate;
the first connection assembly includes:
at least two groups of connecting groove bins, wherein the first connecting groove bin is arranged outside the metal frame body;
the magnetic attraction groove is positioned in the connecting groove bin and used for magnetic attraction connection of the external component;
the inserting plate is also arranged outside the metal frame body and is used for connecting and fixing a plurality of groups of components by matching with the connecting groove bin;
the magnetic attraction block is positioned in the inserting plate and is used for being matched with the magnetic attraction groove to carry out magnetic attraction fixation;
the stabilizing ring frame is arranged outside the metal frame body;
the support frames are arranged inside the stabilizing ring frame and used for connecting and supporting external components;
a reinforcing disc positioned outside the stabilizing ring frame;
the at least two reinforcing beams are arranged outside the metal frame body;
the at least two reinforcing columns are connected with the reinforcing beam and are used for being matched with the reinforcing disc to carry out reinforcing longitudinal support of the external assembly;
the assembled overhead road edge concrete rail guard construction steel mould still includes:
an arc collision area outside the metal frame body;
the tail support is positioned outside the metal frame body and used for supporting the metal frame body;
the filling opening is arranged outside the metal frame body and used for filling and guiding in the concrete of the interlayer in the metal frame body;
the second connecting assembly is arranged outside the metal frame body and is used for connecting and fixing a plurality of groups of components by matching with the first connecting assembly;
the second connection assembly includes:
the first grooves and the at least three second grooves are arranged on one side outside the metal frame body;
the first lug and the at least three second lugs are arranged on the other side outside the metal frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237690.9A CN113957797B (en) | 2021-10-22 | 2021-10-22 | Assembled overhead road edge concrete rail guard construction steel mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237690.9A CN113957797B (en) | 2021-10-22 | 2021-10-22 | Assembled overhead road edge concrete rail guard construction steel mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113957797A CN113957797A (en) | 2022-01-21 |
| CN113957797B true CN113957797B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111237690.9A Active CN113957797B (en) | 2021-10-22 | 2021-10-22 | Assembled overhead road edge concrete rail guard construction steel mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113957797B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213510A (en) * | 2014-09-29 | 2014-12-17 | 中建八局第三建设有限公司 | Combined steel formwork fixing structure and method for ramp bridge anti-collision wall construction |
| JP2017172144A (en) * | 2016-03-22 | 2017-09-28 | 株式会社高速道路総合技術研究所 | Junction structure and junction method between road floor slab and pca wall balustrade |
| CN107237272A (en) * | 2017-07-24 | 2017-10-10 | 中交二航局南方工程有限公司 | Crash barrier template structure and anticollision barrier casting system |
| CN207958988U (en) * | 2018-01-11 | 2018-10-12 | 青海第六路桥建设有限公司 | A kind of bridge steel guard rail |
| CN110565514A (en) * | 2019-08-22 | 2019-12-13 | 南昌大学 | novel anti-collision guardrail applied to prestressed concrete bridge and installation method |
| CN211849165U (en) * | 2019-12-03 | 2020-11-03 | 徐州市云天市政建设工程有限公司 | Novel construction guardrail of town road construction |
| CN111996954A (en) * | 2020-08-11 | 2020-11-27 | 王仁强 | Road and bridge avris rail guard for safety protection |
| CN212200051U (en) * | 2020-01-22 | 2020-12-22 | 华南理工大学 | Assembled reinforced concrete side anti-collision guardrail for connecting bridge |
-
2021
- 2021-10-22 CN CN202111237690.9A patent/CN113957797B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213510A (en) * | 2014-09-29 | 2014-12-17 | 中建八局第三建设有限公司 | Combined steel formwork fixing structure and method for ramp bridge anti-collision wall construction |
| JP2017172144A (en) * | 2016-03-22 | 2017-09-28 | 株式会社高速道路総合技術研究所 | Junction structure and junction method between road floor slab and pca wall balustrade |
| CN107237272A (en) * | 2017-07-24 | 2017-10-10 | 中交二航局南方工程有限公司 | Crash barrier template structure and anticollision barrier casting system |
| CN207958988U (en) * | 2018-01-11 | 2018-10-12 | 青海第六路桥建设有限公司 | A kind of bridge steel guard rail |
| CN110565514A (en) * | 2019-08-22 | 2019-12-13 | 南昌大学 | novel anti-collision guardrail applied to prestressed concrete bridge and installation method |
| CN211849165U (en) * | 2019-12-03 | 2020-11-03 | 徐州市云天市政建设工程有限公司 | Novel construction guardrail of town road construction |
| CN212200051U (en) * | 2020-01-22 | 2020-12-22 | 华南理工大学 | Assembled reinforced concrete side anti-collision guardrail for connecting bridge |
| CN111996954A (en) * | 2020-08-11 | 2020-11-27 | 王仁强 | Road and bridge avris rail guard for safety protection |
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| Publication number | Publication date |
|---|---|
| CN113957797A (en) | 2022-01-21 |
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