CN115030079A - Prefabricated concrete guardrail for expressway and manufacturing method - Google Patents
Prefabricated concrete guardrail for expressway and manufacturing method Download PDFInfo
- Publication number
- CN115030079A CN115030079A CN202210759393.9A CN202210759393A CN115030079A CN 115030079 A CN115030079 A CN 115030079A CN 202210759393 A CN202210759393 A CN 202210759393A CN 115030079 A CN115030079 A CN 115030079A
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- base
- solidification
- guardrail
- shell
- concrete layer
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000004567 concrete Substances 0.000 title claims description 50
- 238000007711 solidification Methods 0.000 claims abstract description 20
- 230000008023 solidification Effects 0.000 claims abstract description 20
- 239000011178 precast concrete Substances 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims abstract description 3
- 239000004575 stone Substances 0.000 claims description 42
- 239000011083 cement mortar Substances 0.000 claims description 21
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000011440 grout Substances 0.000 claims 5
- 238000000034 method Methods 0.000 claims 3
- 230000003139 buffering effect Effects 0.000 description 7
- 239000011435 rock Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- 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
- E01F15/003—Individual devices arranged in spaced relationship, e.g. buffer bollards
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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 relates to the technical field of highway guardrails, in particular to a precast concrete guardrail for a highway and a manufacturing method thereof. It includes highway guardrail, and highway guardrail includes base, solidification fence and overcoat, and the outer surface cladding of solidification fence has the overcoat, and the solidification column is in the base top, and the solidification fence includes solidification structure and sets up in the buffer structure of solidification structure both sides, solidification structure bottom and base top middle part fixed connection, and buffer structure is located base top both sides. The road guardrail provided by the invention has the advantages that the resistance-increasing grooves are formed, so that the surface of one side, away from the clamping plate, of the panel is uneven, the friction force generated when a vehicle contacts the panel can be increased, the clamping plate and the damping grooves of the inner plate are rubbed, the kinetic energy is converted into internal energy, namely heat is released, and therefore the kinetic energy generated when the vehicle collides is absorbed, and the vehicle is conveniently buffered.
Description
Technical Field
The invention relates to the technical field of highway guardrails, in particular to a prefabricated concrete guardrail for a highway and a manufacturing method thereof.
Background
The guardrail is mainly used for protecting and protecting personal safety and equipment and facilities in occasions such as houses, highways, commercial districts, public places and the like, and the highway guardrail is mainly used for separating vehicles running in different directions, standardizing the running direction order of the vehicles and avoiding traffic accidents caused by various vehicles running in the wrong direction. Meanwhile, the guardrail can also play a role in preventing non-motor vehicles and pedestrians from crossing and crossing roads at will, ensuring good traffic order and preventing accidents.
Concrete barrier compares in other types of guardrail like wooden guardrail, metal guardrail etc. has sturdy and durable, non-deformable, difficult fracture, unique advantage such as difficult corruption, nevertheless because concrete barrier self's rigidity, vehicle speed is very fast on the highway in addition, the vehicle takes place secondary collision with the guardrail and can lead to the serious deformation of automobile body when bumping, is unfavorable for personnel's escaping, and cast-in-place concrete barrier is consuming time longer, consequently needs a highway precast concrete guardrail and manufacturing method.
Disclosure of Invention
The invention aims to provide a prefabricated concrete guardrail for an expressway and a manufacturing method thereof, and aims to solve the problems in the background art.
In order to achieve the above object, the present invention provides a precast concrete guardrail for a highway, including a highway guardrail, wherein the highway guardrail includes a base, a curing fence and an outer cover, the outer cover is covered on the outer surface of the curing fence, the curing fence is located above the base, the curing fence includes a curing structure and buffer structures arranged on two sides of the curing structure, the bottom of the curing structure is fixedly connected with the middle part of the top of the base, the buffer structures are located on two sides of the top of the base, and when the buffer structures are impacted, the buffer structures are used for absorbing kinetic energy generated by the impact.
As a further improvement of the technical scheme, the base comprises a stone seat and a base shell arranged around the stone seat, the stone seat is of an inverted T-shaped square column structure, the base shell is made of rubber, and openings penetrating through the surface of the base shell are symmetrically formed in the two sides of the base shell.
As a further improvement of the technical scheme, the curing structure comprises a concrete layer and a reinforcing steel pipe arranged in the concrete layer, the bottom of the reinforcing steel pipe is connected with the middle of the surface of the top of the stone seat, the concrete layer is of an H-shaped structure, the length of a long edge of the concrete layer is consistent with the length of a long edge of the upper surface of the top of the stone seat, and the length of a short edge of the concrete layer is smaller than the length of a short edge of the upper surface of the top of the stone seat.
As a further improvement of this technical scheme, buffer structure is including being located the inner panel of concrete layer both sides, the inner panel is kept away from a concrete layer side surface has seted up the damping groove, the inner panel is kept away from concrete layer one end is equipped with splint, splint one end is located the damping inslot, splint are kept away from inner panel one side is equipped with the panel, the panel is close to a splint side surface is equipped with the spring, the panel through the spring that sets up with splint surface connection, the panel is kept away from splint side surface has seted up and has increased the resistance groove.
As a further improvement of the technical scheme, the outer sleeve comprises a shell coated on the outer surface of the curing fence, the shell is a plastic shell, a clamping groove is formed in the surface of the shell, buckles are arranged at the four corners of the surface of one side, far away from the inner plate, of the clamping plate, and the buckles are in clamping fit with the clamping groove.
As a further improvement of the technical scheme, grouting ports are symmetrically formed in the top surface of the stone seat close to the edges, grouting grooves are formed in the side surfaces of two ends of the bottom of the stone seat, the top of each grouting groove is communicated with the bottom of each grouting port, and movable plates are matched in the grouting grooves in an inserted mode.
As a further improvement of the technical scheme, the two side surfaces of the concrete layer are symmetrically provided with connecting grooves, the connecting grooves are in threaded connection with connecting bolts, and the tail ends of the connecting bolts are in threaded connection with the buffer structure.
A manufacturing method for a prefabricated concrete guardrail for a highway comprises the following steps:
s1, downwards sleeving the base shell from the top of the stone seat to enable the stone seat to be sleeved in the base shell and keep the bottom of the stone seat flush with the bottom of the base shell;
s2, pouring cement mortar into the grouting opening, so that the cement mortar pushes the movable plate to move outwards in the grouting groove until the movable plate contacts the inner wall of the base shell and then waits for the cement mortar to solidify;
s3, clamping the buffer structure into two sides of the concrete layer, penetrating the connecting bolt through the connecting groove and screwing the tail end of the connecting bolt into the inner plate, keeping the rigid connection between the concrete layer and the inner plate, downwards sleeving the shell on the surface of the curing fence, and enabling the buckle to be positioned in the clamping groove;
and S4, after the stone seat and the bottom surface of the base shell are contacted with the surface of the road, penetrating the through hole by using a bolt and screwing the bottom of the bolt into the road surface by using a thread, thereby completing the installation of the guardrail.
As a further improvement of the technical scheme, in S2, when cement mortar is poured into the grouting opening, the cement mortar in the grouting opening is stirred by the stirring rod until the cement mortar pushes the movable plate to contact with the inner wall of the base shell.
Compared with the prior art, the invention has the beneficial effects that:
1. in this highway precast concrete guardrail and preparation method, through being equipped with the stone seat and through its square column structure of falling T, increase the area of stone seat bottom to improve highway guardrail's stability, and through having seted up the opening, pass the opening with the bolt and screw in ground, can ensure the stable connection on base ground, through establishing the opening into the rubber material in addition, can provide the buffering effect and avoid the flat tire of vehicle when vehicle tire and opening contact.
2. In the precast concrete guardrail for the highway and the manufacturing method, the surface of one side of the panel, away from the clamping plate, is uneven by arranging the resistance-increasing grooves, so that the friction force when the vehicle contacts the panel can be increased, the clamping plate rubs with the damping grooves of the inner plate, the kinetic energy is converted into internal energy, namely, heat is released, the kinetic energy when the vehicle collides is absorbed, and the vehicle is conveniently buffered.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic overall cross-sectional structure of the present invention;
FIG. 3 is a cross-sectional view of the base of the present invention;
FIG. 4 is a schematic structural view of a curing column according to the present invention;
FIG. 5 is a schematic view of a cured structure of the present invention;
FIG. 6 is a schematic view of a buffer structure according to the present invention;
FIG. 7 is a cross-sectional structural view of the jacket of the present invention;
FIG. 8 is a flow chart of a manufacturing method of the present invention.
The various reference numbers in the figures mean:
1. a road guardrail; 11. a base; 111. a stone seat; 112. a base housing; 113. a port; 114. grouting ports; 115. grouting grooves; 116. a movable plate; 12. curing the fence; 121. curing the structure; 122. a buffer structure; 123. a steel pipe; 124. a concrete layer; 125. an inner plate; 126. a splint; 127. a panel; 128. buckling; 129. a connecting bolt; 13. a jacket; 131. a housing; 132. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1 to 8, the present embodiment aims to provide a prefabricated concrete guardrail for a highway and a manufacturing method thereof, including a highway guardrail 1, the highway guardrail 1 includes a base 11, a curing fence 12 and an outer sheath 13, the outer surface of the curing fence 12 is wrapped by the outer sheath 13, the curing fence 12 is located above the base 11, the curing fence 12 includes a curing structure 121 and buffering structures 122 disposed at two sides of the curing structure 121, the bottom of the curing structure 121 is fixedly connected with the middle of the top of the base 11, the buffering structures 122 are located at two sides of the top of the base 11, and when the buffering structures 122 are impacted, the buffering structures 122 are used for absorbing kinetic energy generated by the impact.
When the embodiment is used specifically, when a vehicle in high-speed running collides with the highway guardrail 1, the vehicle breaks the outer sleeve 13 and contacts with the surface of the panel 127, because the highway guardrail 1 passes through the through hole 113 through the bolt and is fixedly connected with the ground, and because the friction force between the vehicle body and the panel 127 is increased by the resistance-increasing groove on the surface of the panel 127, the vehicle body drives the panel 127 to move, the power component perpendicular to the surface of the panel 127 in the collision kinetic energy enables the panel 127 to be close to the clamp plate 126, so that the spring is extruded to generate elastic deformation to absorb energy, the component parallel to the surface of the panel 127 in the collision kinetic energy enables the panel 127 to drive the clamp plate 126 to move in the damping groove, and the clamp plate 126 rubs with the damping groove of the inner plate 125, so that the kinetic energy is converted into internal energy, namely heat is released, thereby absorbing the kinetic energy when the vehicle collides, and achieving the purpose of buffering the vehicle.
The curing structure 121 comprises a concrete layer 124 and a reinforced pipe 123 arranged in the concrete layer 124, the bottom of the reinforced pipe 123 is connected with the middle part of the top surface of the stone seat 111, the concrete layer 124 is in an H-shaped structure, the length of the long side of the concrete layer 124 is consistent with that of the long side of the top upper surface of the stone seat 111, the length of the short side of the concrete layer 124 is smaller than that of the short side of the top upper surface of the stone seat 111, the reinforced concrete is formed by combining the reinforced pipe 123 and the concrete layer 124, and the rigidity of the concrete and the toughness of the reinforcing steel bar are both considered, so that the cured structure 121 has good structural strength, and the concrete layer 124 is provided in an "H" type structure, so that the buffer structures 122 are installed at both ends of the concrete layer 124, and the combined installation of the base shell 112 and the stone base 111 is facilitated by setting the size of the concrete layer 124 to be smaller than that of the stone base 111 so that the base shell 112 is sleeved from the top of the concrete layer 124 down to around the stone base 111.
The buffer structure 122 includes inner plates 125 located at both sides of the concrete layer 124, a damping groove is opened on one side surface of the inner plate 125 far from the concrete layer 124, the damping groove is a "T" shaped groove, a clamp plate 126 is arranged at one end of the inner plate 125 far from the concrete layer 124, the clamp plate 126 is an "i" shaped plate, one end of the clamp plate 126 is located in the damping groove, a panel 127 is arranged at one side of the clamp plate 126 far from the inner plate 125, a spring is arranged on one side surface of the panel 127 close to the clamp plate 126, the panel 127 is connected with the surface of the clamp plate 126 through the arranged spring, a resistance increasing groove is opened on one side surface of the panel 127 far from the clamp plate 126, the resistance increasing groove is a crossed semicylindrical groove, the surface of the panel 127 far from the clamp plate 126 is uneven through the resistance increasing groove, the friction force when the vehicle contacts the panel 127 can be increased, the clamp plate 126 rubs against the damping groove of the inner plate 125, so that the kinetic energy is converted into internal energy, namely the heat is released, thereby absorbing the kinetic energy when the vehicle collides, the purpose of buffering the vehicle is achieved.
In order to avoid the rock base 111, the top curing fence 12 and the outer sleeve 13 from shaking, grouting ports 114 are symmetrically formed in the top surface of the rock base 111 close to the edges, the grouting ports 114 are circular through ports, grouting grooves 115 are formed in the side surfaces of the two ends of the bottom of the rock base 111, the top of the grouting grooves 115 is communicated with the bottom of the grouting ports 114, movable plates 116 are inserted and matched in the grouting grooves 115, cement is injected into the grouting ports 114, the movable plates 116 are pushed to move after the cement enters the grouting grooves 115 until the movable plates 116 contact the inner surface of the base shell 112, the rock base 111 and the movable plates 116 are fixed after the cement in the grouting grooves 115 is solidified, and abut against the inner wall of the base shell 112 through the movable plates 116, so that the rock base 111, the top curing fence 12 and the outer sleeve 13 shake caused by gaps between the rock base 111 and the base shell 112.
In order to ensure rigid connection of solidification structure 121 and buffer structure 122 when being convenient for make up solidification structure 121 and buffer structure 122, concrete layer 124 both sides surface symmetry has seted up the connecting groove, the connecting groove is "T" type cylinder structure recess, buffer structure 122 both sides surface correspondence has seted up the cylinder recess, connecting groove female connection has connecting bolt 129, connecting bolt 129 is the "T" type cylinder that the hexagonal socket in one end was seted up, connecting bolt 129 is terminal and buffer structure 122 threaded connection, through threaded connection's mode, make through passing connecting bolt 129 the connecting groove and screw in buffer structure 122, can ensure solidification structure 121 and buffer structure 122's rigid connection when being convenient for solidification structure 121 and buffer structure 122 combination.
A manufacturing method for a prefabricated concrete guardrail of a highway comprises the following steps:
s1, sheathing the base shell 112 downwards from the top of the stone seat 111 so that the stone seat 111 is sheathed in the base shell 112 and the bottom of the stone seat 111 is kept flush with the bottom of the base shell 112;
s2, cement mortar is poured into the grouting opening 114, so that the cement mortar pushes the movable plate 116 to move outwards in the grouting groove 115 until the movable plate 116 contacts the inner wall of the base shell 112 and then the cement mortar is solidified;
s3, clamping the buffer structure 122 into the two sides of the concrete layer 124, inserting the connecting bolt 129 through the connecting groove and screwing the end of the connecting bolt 129 into the inner plate 125, keeping the concrete layer 124 rigidly connected to the inner plate 125, inserting the outer shell 131 down into the surface of the curing fence 12, and positioning the fastener 128 in the slot 132;
s4, after the stone base 111 and the bottom surface of the base shell 112 are contacted with the surface of the road, the bolt is used to pass through the through hole 113 and the bottom of the bolt is screwed into the road surface, thus completing the installation of the guardrail.
Further, in S2, when cement mortar is poured into the grouting opening 114, the cement mortar in the grouting opening 114 is stirred by the stirring rod until the cement mortar pushes the movable plate 116 to contact the inner wall of the base shell 112, and the fluidity of the cement mortar can be ensured by stirring the cement mortar, so that the cement mortar pushes the movable plate 116 to move.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a highway precast concrete guardrail which characterized in that: including highway guardrail (1), highway guardrail (1) includes base (11), solidification fence (12) and overcoat (13), the outward appearance cladding of solidification fence (12) has overcoat (13), solidification fence (12) are located base (11) top, solidification fence (12) include solidification structure (121) and set up in buffer structure (122) of solidification structure (121) both sides, solidification structure (121) bottom with base (11) top middle part fixed connection, buffer structure (122) are located base (11) top both sides when buffer structure (122) receive the striking, buffer structure (122) are used for absorbing the kinetic energy that the striking produced.
2. The precast concrete guard rail for highways according to claim 1, wherein: base (11) include stone seat (111) and set up base shell (112) around stone seat (111), stone seat (111) are the square column structure of falling T, base shell (112) are the rubber material, base shell (112) bilateral symmetry sets up through opening (113) that run through its surface.
3. The precast concrete guard rail for a highway according to claim 2, wherein: the curing structure (121) comprises a concrete layer (124) and a reinforcing steel pipe (123) arranged in the concrete layer (124), the bottom of the reinforcing steel pipe (123) is connected with the middle of the top surface of the stone base (111), the concrete layer (124) is of an H-shaped structure, the length of the long side of the concrete layer (124) is consistent with that of the long side of the top upper surface of the stone base (111), and the length of the short side of the concrete layer (124) is smaller than that of the short side of the top upper surface of the stone base (111).
4. The precast concrete guard rail for highways according to claim 3, wherein: buffer structure (122) is including being located inner panel (125) of concrete layer (124) both sides, inner panel (125) are kept away from concrete layer (124) side surface has seted up the damping groove, inner panel (125) are kept away from concrete layer (124) one end is equipped with splint (126), splint (126) one end is located the damping inslot, splint (126) are kept away from inner panel (125) one side is equipped with panel (127), panel (127) are close to splint (126) side surface is equipped with the spring, panel (127) through the spring that sets up with splint (126) surface connection, panel (127) are kept away from splint (126) side surface has seted up and has increased the resistance groove.
5. The precast concrete guardrail of a highway according to claim 4, wherein: the outer sleeve (13) comprises a shell (131) wrapped on the outer surface of the curing fence (12), the shell (131) is a plastic shell, a clamping groove (132) is formed in the surface of the shell (131), a clamping plate (126) is far away from the four corners of the surface of one side of the inner plate (125) and is provided with a buckle (128), and the buckle (128) is in clamping fit with the clamping groove (132).
6. The precast concrete guardrail for highways according to claim 2, wherein: grout holes (114) are symmetrically formed in the top surface of the stone seat (111) close to the edge, grout grooves (115) are formed in the side surfaces of the two ends of the bottom of the stone seat (111), the top of each grout groove (115) is communicated with the bottom of each grout hole (114), and movable plates (116) are inserted into the grout grooves (115) in a matched mode.
7. The precast concrete guard rail for a highway according to claim 4, wherein: the connecting groove has been seted up to concrete layer (124) both sides surface symmetry, connecting groove female connection has connecting bolt (129), connecting bolt (129) terminal with buffer structure (122) threaded connection.
8. A method for manufacturing a precast concrete guard rail for a highway according to claims 1-7, comprising the steps of:
s1, sleeving the base shell (112) downwards from the top of the stone seat (111) so that the stone seat (111) is sleeved in the base shell (112) and the bottom of the stone seat (111) is kept flush with the bottom of the base shell (112);
s2, cement mortar is poured into the grouting opening (114), so that the cement mortar pushes the movable plate (116) to move outwards in the grouting groove (115) until the movable plate (116) contacts the inner wall of the base shell (112) and then the cement mortar is waited to be solidified;
s3, clamping the buffer structure (122) on two sides of the concrete layer (124), penetrating the connecting bolt (129) through the connecting groove and screwing the tail end of the connecting bolt (129) into the inner plate (125), keeping the rigid connection between the concrete layer (124) and the inner plate (125), sleeving the outer shell (131) downwards on the surface of the curing fence (12), and enabling the buckle (128) to be located in the clamping groove (132);
s4, after the bottom surfaces of the stone seat (111) and the base shell (112) are contacted with the surface of a road, bolts are used for penetrating through the through holes (113) and enabling the bottoms of the bolts to be screwed into the road surface, and the installation of the guardrail is completed.
9. The method for manufacturing the precast concrete guardrail for the highway according to claim 8, wherein the method comprises the following steps: in the step S2, when cement mortar is poured into the grouting opening (114), the cement mortar in the grouting opening (114) is stirred by the stirring rod until the cement mortar pushes the movable plate (116) to contact with the inner wall of the base shell (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759393.9A CN115030079B (en) | 2022-06-30 | 2022-06-30 | Expressway precast concrete guardrail and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759393.9A CN115030079B (en) | 2022-06-30 | 2022-06-30 | Expressway precast concrete guardrail and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN115030079A true CN115030079A (en) | 2022-09-09 |
| CN115030079B CN115030079B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210759393.9A Active CN115030079B (en) | 2022-06-30 | 2022-06-30 | Expressway precast concrete guardrail and manufacturing method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350439A (en) * | 1998-06-03 | 1999-12-21 | Ishikawajima Constr Materials Co Ltd | Protective fence |
| US20040141807A1 (en) * | 2003-01-21 | 2004-07-22 | Yodock Leo J. | Traffic control device |
| KR100553458B1 (en) * | 2005-10-25 | 2006-02-22 | (주)미래기술단 | A median strip for absorbing shock |
| CN209703377U (en) * | 2019-04-04 | 2019-11-29 | 黄明 | A kind of municipal road guardrail clamp device |
| CN210262859U (en) * | 2019-05-08 | 2020-04-07 | 凌云环境建设集团有限公司 | Municipal administration hard shoulder |
| CN111287123A (en) * | 2020-02-27 | 2020-06-16 | 沈春波 | Municipal administration is anticollision buffering isolated column for highway |
| CN211256799U (en) * | 2019-11-13 | 2020-08-14 | 杭州萧山金鹰交通设施有限公司 | Hard shoulder convenient to remove |
| CN211735049U (en) * | 2019-10-24 | 2020-10-23 | 南昌大学 | Be applied to precast FRP anticollision barrier that turns to of prestressed concrete bridge roof beam |
| CN114016415A (en) * | 2021-11-10 | 2022-02-08 | 宁波市高等级公路建设管理中心 | Big cantilever bent cap mounting structure based on permanent template of UHPC |
-
2022
- 2022-06-30 CN CN202210759393.9A patent/CN115030079B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350439A (en) * | 1998-06-03 | 1999-12-21 | Ishikawajima Constr Materials Co Ltd | Protective fence |
| US20040141807A1 (en) * | 2003-01-21 | 2004-07-22 | Yodock Leo J. | Traffic control device |
| KR100553458B1 (en) * | 2005-10-25 | 2006-02-22 | (주)미래기술단 | A median strip for absorbing shock |
| CN209703377U (en) * | 2019-04-04 | 2019-11-29 | 黄明 | A kind of municipal road guardrail clamp device |
| CN210262859U (en) * | 2019-05-08 | 2020-04-07 | 凌云环境建设集团有限公司 | Municipal administration hard shoulder |
| CN211735049U (en) * | 2019-10-24 | 2020-10-23 | 南昌大学 | Be applied to precast FRP anticollision barrier that turns to of prestressed concrete bridge roof beam |
| CN211256799U (en) * | 2019-11-13 | 2020-08-14 | 杭州萧山金鹰交通设施有限公司 | Hard shoulder convenient to remove |
| CN111287123A (en) * | 2020-02-27 | 2020-06-16 | 沈春波 | Municipal administration is anticollision buffering isolated column for highway |
| CN114016415A (en) * | 2021-11-10 | 2022-02-08 | 宁波市高等级公路建设管理中心 | Big cantilever bent cap mounting structure based on permanent template of UHPC |
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| Publication number | Publication date |
|---|---|
| CN115030079B (en) | 2024-04-16 |
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