CN115030079B - Expressway precast concrete guardrail and manufacturing method - Google Patents
Expressway precast concrete guardrail and manufacturing method Download PDFInfo
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- CN115030079B CN115030079B CN202210759393.9A CN202210759393A CN115030079B CN 115030079 B CN115030079 B CN 115030079B CN 202210759393 A CN202210759393 A CN 202210759393A CN 115030079 B CN115030079 B CN 115030079B
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- grouting
- stone seat
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000004575 stone Substances 0.000 claims description 48
- 239000004567 concrete Substances 0.000 claims description 44
- 239000011083 cement mortar Substances 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 239000000463 material Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001632 homeopathic effect 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
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
Landscapes
- 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 highway precast concrete guardrail and a manufacturing method thereof. The road guardrail comprises a base, a curing fence and an outer sleeve, wherein the outer surface of the curing fence is coated with the outer sleeve, the curing fence is located above the base and comprises 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 of the top of the base, and the buffer structures are located on two sides of the top of the base. According to the highway guardrail, the friction force of the panel, which is caused by the fact that the surface of the side, away from the clamping plate, is uneven, can be increased when a vehicle contacts the panel, and the clamping plate rubs with the damping groove of the inner plate, so that kinetic energy is converted into internal energy, namely heat is released, and the kinetic energy is absorbed when the vehicle collides, so that the vehicle is buffered.
Description
Technical Field
The invention relates to the technical field of highway guardrails, in particular to a highway precast concrete guardrail and a manufacturing method thereof.
Background
The guardrail is mainly used for protecting personal safety and equipment and facilities in houses, roads, commercial areas, public places and other places, and the highway guardrail is generally mainly used for separating automobiles running in different directions, standardizing the running direction order of the automobiles and avoiding traffic accidents caused by various retrograde automobiles. Meanwhile, the guardrail can also prevent non-motor vehicles and pedestrians from crossing the road at will and obliquely passing through the road, so that good traffic order is ensured, and accidents are prevented.
Compared with other types of guardrails such as wooden guardrails and metal guardrails, the concrete guardrail has the unique advantages of being firm and durable, not easy to deform, not easy to break, not easy to corrode and the like, but because the concrete guardrail is self-rigid, in addition, the speed of a vehicle on an expressway is high, the vehicle and the guardrails are subjected to secondary collision during collision to cause serious deformation of a vehicle body, the escape of personnel is not facilitated, and the time for casting the concrete guardrail on site is long, so that the expressway precast concrete guardrail and the manufacturing method are needed.
Disclosure of Invention
The invention aims to provide a highway precast concrete guardrail and a manufacturing method thereof, which are used for solving the problems in the background technology.
In order to achieve the above object, the invention provides a highway precast concrete guardrail, which comprises a highway guardrail, wherein the highway guardrail comprises a base, a curing fence and an outer sleeve, the outer surface of the curing fence is coated with the outer sleeve, the curing fence is positioned above the base, the curing fence comprises 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 positioned 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 square column structure, the base shell is made of rubber, and through holes penetrating through the surface of the base shell are symmetrically formed in two sides of the base shell.
As the further improvement of this technical scheme, the solidification structure includes concrete layer and sets up in the reinforcing bar pipe in the concrete layer, reinforcing bar pipe bottom with stone seat top surface middle part is connected, the concrete layer is "H" structure, the long limit length of concrete layer with stone seat top upper surface long limit length is unanimous, the minor face length of concrete layer is less than stone seat top upper surface minor face length.
As a further improvement of the technical scheme, the buffer structure comprises an inner plate positioned on two sides of the concrete layer, the inner plate is far away from one side surface of the concrete layer, a damping groove is formed in the inner plate, a clamping plate is arranged at one end of the concrete layer, one end of the clamping plate is positioned in the damping groove, a panel is arranged on one side of the clamping plate, which is far away from the inner plate, a spring is arranged on one side surface of the panel, which is close to the clamping plate, the panel is connected with the surface of the clamping plate through the set spring, and a resistance increasing groove is formed in the surface of one side surface of the clamping plate, which is far away from the panel.
As a further improvement of the technical scheme, the outer sleeve comprises a shell which is wrapped on the outer surface of the curing fence, the shell is a plastic shell, clamping grooves are formed in the surface of the shell, clamping plates are arranged at four corners of the surface of one side of the inner plate, and the clamping plates are in clamping fit with the clamping grooves.
As a further improvement of the technical scheme, grouting openings are symmetrically formed in the edge of the top surface of the stone seat, grouting grooves are formed in the side surfaces of the two ends of the bottom of the stone seat, the top of each grouting groove is communicated with the bottom of each grouting opening, and movable plates are inserted and matched in the grouting grooves.
As a further improvement of the technical scheme, connecting grooves are symmetrically formed in the surfaces of two sides of the concrete layer, connecting bolts are connected in the connecting grooves in a threaded mode, and the tail ends of the connecting bolts are connected with the buffer structure in a threaded mode.
The manufacturing method for the highway precast concrete guardrail comprises the following steps:
s1, sleeving the base shell downwards from the top of the stone seat, so that the stone seat is sleeved into the base shell and the bottom of the stone seat is kept flush with the bottom of the base shell;
s2, grouting 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, enabling the connecting bolt to pass through the connecting groove, enabling the tail end of the connecting bolt to be screwed into the inner plate in a threaded manner, keeping rigid connection between the concrete layer and the inner plate, enabling the shell to be sleeved into the surface of the solidified fence downwards, and enabling the buckle to be located in the clamping groove;
and S4, after the bottoms of the stone seat and the base shell are contacted with the surface of the highway, bolts are used for penetrating through the through holes, and the bottoms of the bolts are screwed into the pavement, so that the installation of the guardrail is completed.
As a further improvement of the technical scheme, in the step S2, when cement mortar is poured into the grouting opening, a stirring rod is adopted to stir the cement mortar in the grouting opening until the cement mortar pushes the movable plate to be in 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 reverse T square column structure, 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, in addition through establishing the opening as the rubber material, can provide the buffering effect and avoid the tire burst of vehicle when vehicle tire and opening contact.
2. In this highway precast concrete guardrail and preparation method, make panel keep away from splint one side surface roughness through being equipped with and increase the resistance groove, frictional force when can increasing the vehicle and contact the panel, splint and the damping groove of inner panel take place the friction for kinetic energy is converted into the internal energy, and the heat is released, thereby absorbs the kinetic energy when the vehicle collides, in order to cushion the vehicle.
Drawings
FIG. 1 is a schematic diagram 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 schematic cross-sectional view of a base of the present invention;
FIG. 4 is a schematic view of a cured rail structure according to the present invention;
FIG. 5 is a schematic view of a cured structure according to the present invention;
FIG. 6 is a schematic diagram of a buffer structure according to the present invention;
FIG. 7 is a schematic cross-sectional view of a jacket according to the present invention;
FIG. 8 is a flow chart of a method of making the present invention.
The meaning of each reference sign in the figure is:
1. road guardrail; 11. a base; 111. a stone seat; 112. a base housing; 113. a through port; 114. a grouting port; 115. grouting grooves; 116. a movable plate; 12. solidifying the column; 121. solidifying the structure; 122. a buffer structure; 123. a reinforcing steel bar pipe; 124. a concrete layer; 125. an inner plate; 126. a clamping plate; 127. a panel; 128. a buckle; 129. a connecting bolt; 13. a jacket; 131. a housing; 132. a clamping groove.
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 the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1-8, an objective of the present embodiment is to provide a prefabricated concrete guardrail for highway and a manufacturing method thereof, including a highway guardrail 1, the highway guardrail 1 includes a base 11, a curing rail 12 and an outer jacket 13, the outer jacket 13 is covered on the curing rail 12, the curing rail 12 is located above the base 11, the curing rail 12 includes a curing structure 121 and a buffer structure 122 disposed on 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 buffer structure 122 is disposed on two sides of the top of the base 11, and the buffer structure 122 is used for absorbing kinetic energy generated by the impact when the buffer structure 122 is impacted.
When the vehicle in high-speed running collides with the highway guardrail 1, the outer sleeve 13 is broken by the vehicle and is contacted with the surface of the panel 127, the highway guardrail 1 is fixedly connected with the ground through the through hole 113 by the bolts, and 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, so that the vehicle body drives the panel 127 to move, the panel 127 is close to the clamping plate 126 by the power component vertical to the surface of the panel 127 in the collision kinetic energy, the spring is extruded to generate elastic deformation to absorb energy, the clamping plate 126 is driven by the panel 127 to move in the damping groove by the component parallel to the surface of the panel 127 in the collision kinetic energy, and the damping groove of the clamping plate 126 and the inner plate 125 is rubbed, so that the kinetic energy is converted into internal energy, namely heat is released, and the kinetic energy generated during the vehicle collision is absorbed, so that the purpose of buffering the vehicle is achieved.
The base 11 includes stone seat 111 and sets up the base shell 112 around stone seat 111, stone seat 111 is the structure of falling T square column, the isosceles trapezoid structure body of "T" formula mouth has been seted up for the base shell 112, the base shell 112 is the rubber material, the through-hole 113 that runs through its surface has been seted up to base shell 112 bilateral symmetry, through being equipped with stone seat 111 and through its structure of falling T square column, increase the area of stone seat 111 bottom, thereby improve the stability of highway guardrail 1, through having seted up through-hole 113, pass through-hole 113 with the bolt and screw in ground, can ensure the stable connection on base 11 ground, through setting up through-hole 113 as the rubber material, can provide the buffering effect and avoid the tire burst of vehicle when vehicle tire and through-hole 113 contact.
The curing structure 121 includes a concrete layer 124 and a reinforcement pipe 123 disposed in the concrete layer 124, the bottom of the reinforcement pipe 123 is connected with the middle of the top surface of the stone seat 111, the concrete layer 124 is of an 'H' -shaped structure, the length of the long side of the concrete layer 124 is identical to the length of the long side of the top surface of the stone seat 111, the length of the short side of the concrete layer 124 is smaller than the length of the short side of the top surface of the stone seat 111, by combining the reinforcement pipe 123 and the concrete layer 124, reinforced concrete is formed, both the rigidity of the concrete and the toughness of the reinforcement are considered, so that the curing structure 121 has good structural strength, and the concrete layer 124 is of an 'H' -shaped structure, so that the buffer structure 122 is mounted at both ends of the concrete layer 124, and by setting the size of the concrete layer 124 to be smaller than the size of the stone seat 111, so that the base shell 112 is sleeved around the stone seat 111 from the top of the concrete layer 124, so that the combined mounting of the base shell 112 and the stone seat 111 is facilitated.
The buffer structure 122 comprises an inner plate 125 positioned at two sides of a concrete layer 124, a damping groove is formed in the surface of one side of the inner plate 125, which is far away from the concrete layer 124, the damping groove is a T-shaped groove, a clamping plate 126 is arranged at one end of the inner plate 125 far away from the concrete layer 124, the clamping plate 126 is an I-shaped plate, one end of the clamping plate 126 is positioned in the damping groove, a panel 127 is arranged at one side of the clamping plate 126 far away from the inner plate 125, a spring is arranged on the surface of one side of the panel 127 close to the clamping plate 126, the panel 127 is connected with the surface of the clamping plate 126 through the arranged spring, a resistance increasing groove is formed in the surface of one side of the panel 127 far away from the clamping plate 126, the resistance increasing groove is a cross semi-cylindrical groove, the friction force generated when the panel 127 is far away from the surface of the clamping plate 126 can be increased, the clamping plate 126 rubs with the damping groove of the inner plate 125, so that kinetic energy is converted into internal energy, namely heat is released, and the kinetic energy generated when the vehicle collides is absorbed, and the vehicle is buffered.
The overcoat 13 is including cladding in solidification fence 12 apparent shell 131, shell 131 has offered the plastic casing in square groove for the bottom, shell 131 surface has offered draw-in groove 132, draw-in groove 132 is square wearing mouth, splint 126 is kept away from inner panel 125 one side surface four corners department and is equipped with buckle 128, buckle 128 is "L" structural slab, buckle 128 cooperates with draw-in groove 132 joint, through joint complex mode, make shell 131 can keep fixed connection with solidification fence 12, and through plastic material's shell 131, shell 131 homeopathic rupture spills inside panel 127 when the vehicle striking, and shell 131 can absorb partial kinetic energy when breaking.
In order to avoid shaking of the stone seat 111, the top curing rail 12 and the outer sleeve 13, grouting openings 114 are symmetrically formed in the edge of the top surface of the stone seat 111, the grouting openings 114 are round through openings, grouting grooves 115 are formed in the side surfaces of two ends of the bottom of the stone seat 111, the tops of the grouting grooves 115 are communicated with the bottoms of the grouting openings 114, movable plates 116 are inserted and matched into the grouting grooves 115, cement is injected into the grouting openings 114, the movable plates 116 are pushed to move after entering the grouting grooves 115 until the movable plates 116 contact the inner surface of the base shell 112, after the cement in the grouting grooves 115 is solidified, the stone seat 111 is fixed with the movable plates 116, and the movable plates 116 abut against the inner wall of the base shell 112, so that the stone seat 111, the top curing rail 12 and the outer sleeve 13 shake due to gaps between the stone seat 111 and the base shell 112.
In order to ensure the rigid connection of the curing structure 121 and the buffer structure 122 while being convenient for combining the curing structure 121 and the buffer structure 122, the two side surfaces of the concrete layer 124 are symmetrically provided with connecting grooves which are T-shaped cylindrical structure grooves, the two side surfaces of the buffer structure 122 are correspondingly provided with cylindrical grooves, the connecting bolts 129 are connected in the connecting grooves in a threaded manner, the connecting bolts 129 are T-shaped cylinders with inner hexagonal grooves at one ends, the tail ends of the connecting bolts 129 are connected with the buffer structure 122 in a threaded manner, and the connecting bolts 129 penetrate through the connecting grooves and are screwed into the buffer structure 122 in a threaded manner, so that the rigid connection of the curing structure 121 and the buffer structure 122 can be ensured while the curing structure 121 and the buffer structure 122 are convenient to combine.
The manufacturing method for the highway precast concrete guardrail comprises the following steps:
s1, sleeving the base shell 112 downwards from the top of the stone seat 111, so that the stone seat 111 is sleeved into the base shell 112 and the bottom of the stone seat 111 is kept flush with the bottom of the base shell 112;
s2, grouting cement mortar into the grouting openings 114, so that the cement mortar pushes the movable plate 116 to move outwards in the grouting grooves 115 until the movable plate 116 contacts the inner wall of the base shell 112 and then waits for the cement mortar to solidify;
s3, clamping the buffer structure 122 into two sides of the concrete layer 124, enabling the connecting bolts 129 to penetrate through the connecting grooves, enabling the tail ends of the connecting bolts 129 to be screwed into the inner plate 125, keeping rigid connection between the concrete layer 124 and the inner plate 125, sleeving the outer shell 131 downwards into the surface of the curing rail 12, and enabling the clamping buckles 128 to be located in the clamping grooves 132;
and 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 the bottoms of the bolts are screwed into the road surface, so that the installation of the guardrail is completed.
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 be in contact with 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 is convenient to push the movable plate 116 to move.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a highway precast concrete guardrail which characterized in that: the novel road guardrail comprises a road guardrail body (1), wherein the road guardrail body (1) comprises a base (11), a curing fence (12) and an outer sleeve (13), the outer surface of the curing fence (12) is coated with the outer sleeve (13), the curing fence (12) is positioned above the base (11), the curing fence (12) comprises a curing structure (121) and buffer structures (122) arranged on two sides of the curing structure (121), the bottom of the curing structure (121) is fixedly connected with the middle part of the top of the base (11), the buffer structures (122) are positioned on two sides of the top of the base (11), and when the buffer structures (122) are impacted, the buffer structures (122) are used for absorbing kinetic energy generated by impact;
the base (11) comprises a stone seat (111) and a base shell (112) arranged around the stone seat (111), the stone seat (111) is of an inverted T square column structure, the base shell (112) is made of rubber, and through holes (113) penetrating through the surface of the base shell (112) are symmetrically formed in two sides of the base shell;
the solidification structure (121) comprises a concrete layer (124) and a reinforced pipe (123) arranged in the concrete layer (124), wherein the bottom of the reinforced pipe (123) is connected with the middle part of the top surface of the stone seat (111);
the buffer structure (122) comprises inner plates (125) positioned at two sides of the concrete layer (124); a damping groove is formed in the surface of one side, far away from the concrete layer (124), of the inner plate (125), and a clamping plate (126) is arranged at one end, far away from the concrete layer (124), of the inner plate (125);
connecting grooves are symmetrically formed in the two side surfaces of the concrete layer (124), and connecting bolts (129) are connected in the connecting grooves in a threaded mode;
the outer sleeve (13) comprises a shell (131) coated on the outer surface of the curing fence (12), a clamping groove (132) is formed in the surface of the shell (131), and buckles (128) are arranged at four corners of the surface of one side of the clamping plate (126) away from the inner plate (125);
the grouting device is characterized in that grouting openings (114) are symmetrically formed in the edge of the top surface of the stone seat (111), grouting grooves (115) are formed in the side surfaces of two ends of the bottom of the stone seat (111), the top of each grouting groove (115) is communicated with the bottom of each grouting opening (114), and movable plates (116) are inserted and matched in the grouting grooves (115).
2. The highway precast concrete guardrail of claim 1, wherein: the concrete layer (124) is of an H-shaped structure, the length of the long side of the concrete layer (124) is consistent with the length of the long side of the upper surface of the top of the stone seat (111), and the length of the short side of the concrete layer (124) is smaller than the length of the short side of the upper surface of the top of the stone seat (111).
3. The highway precast concrete guardrail of claim 1, wherein: the damping groove is formed in the inner plate (125), one end of the clamping plate (126) is located in the damping groove, a panel (127) is arranged on one side of the clamping plate (126), a spring is arranged on the surface of one side of the panel (127) close to the clamping plate (126), the panel (127) is connected with the surface of the clamping plate (126) through the arranged spring, and the panel (127) is far away from the surface of one side of the clamping plate (126) to form a resistance-increasing groove.
4. The highway precast concrete guardrail of claim 1, wherein: the shell (131) is a plastic shell, and the buckle (128) is in clamping fit with the clamping groove (132).
5. The highway precast concrete guardrail of claim 1, wherein: the end of the connecting bolt (129) is in threaded connection with the buffer structure (122).
6. A method for manufacturing a precast concrete guardrail for an expressway according to any one of claims 1 to 5, comprising the steps of:
s1, sleeving a base shell (112) downwards from the top of a stone seat (111), so that the stone seat (111) is sleeved into the base shell (112) and the bottom of the stone seat (111) is kept flush with the bottom of the base shell (112);
s2, grouting cement mortar into the grouting opening (114) to enable the cement mortar to push 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 waits for the cement mortar to solidify;
s3, clamping the buffer structure (122) into two sides of the concrete layer (124), enabling the connecting bolts (129) to penetrate through the connecting grooves, enabling the tail ends of the connecting bolts (129) to be screwed into the inner plate (125), keeping rigid connection between the concrete layer (124) and the inner plate (125), sleeving the outer shell (131) downwards into the surface of the curing rail (12), and enabling the clamping buckles (128) to be located in the clamping grooves (132);
s4, after the bottoms of the stone seat (111) and the base shell (112) are contacted with the surface of a highway, bolts are used for penetrating through the through holes (113) and the bottoms of the bolts are screwed into the pavement, so that the installation of the guardrail is completed.
7. The method for manufacturing the highway precast concrete guardrail according to claim 6, wherein: 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 adopting a stirring rod until the cement mortar pushes the movable plate (116) to be in 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210759393.9A CN115030079B (en) | 2022-06-30 | 2022-06-30 | Expressway precast concrete guardrail and manufacturing method |
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| CN115030079A CN115030079A (en) | 2022-09-09 |
| CN115030079B true CN115030079B (en) | 2024-04-16 |
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| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6951434B2 (en) * | 2003-01-21 | 2005-10-04 | Yodock Jr Leo J | Traffic control device |
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|---|---|---|---|---|
| JPH11350439A (en) * | 1998-06-03 | 1999-12-21 | Ishikawajima Constr Materials Co Ltd | Protective fence |
| 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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|---|---|
| CN115030079A (en) | 2022-09-09 |
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