Highway guardrail suitable for aeolian sand and snow blowing areas

Abstract

The utility model discloses a road guardrail suitable for an aeolian sand and snow blowing area. The road guardrail comprises stand columns, cross beams and connecting pieces. The lower ends of the stand columns are used for being pre-buried to the road surface, and the multiple cross beams are arranged between every two adjacent stand columns at intervals from top to bottom and connected with the stand columns through connecting pieces. The stand columns or / and the cross beams are rectangular pipes, circular pipes or prismatic pipes; the tubular cross beam is adopted to replace a wave-shaped beam plate, the windward area of the tubular cross beam is smaller than the area of the wave-shaped beam plate, the wind blocking area is effectively reduced, then the passing ability of aeolian sand and accumulated wind snow is improved, and then the workload of road maintenance operation increased by precipitation of the aeolian sand and the accumulated wind snow is effectively reduced; and meanwhile, the driving potential safety hazard caused by the reduction of the friction coefficient of the road surface due to the precipitation of aeolian sand and accumulated snow can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of road traffic safety, in particular to a highway guardrail suitable for wind-blown sand and wind-blown snow areas. Background Art

[0002] A guardrail is a type of guardrail installed on the highway that can absorb the energy of a vehicle collision and prevent the vehicle from falling off a cliff or into the water, thereby providing good protection for the vehicle and its passengers. Existing highway guardrails generally use corrugated beam guardrails, in which a corrugated beam is set from top to bottom between two columns, and the columns of the guardrail are fixed by driving them into the roadbed.

[0003] However, with the improvement of my country's highway network, the corrugated beam guardrail has been widely promoted and used. However, in areas with blowing snow and wind-blown sand, the corrugated beam guardrail is used on highways. When blowing snow or wind-blown sand occurs, the corrugated beam of the guardrail greatly increases the wind-blocking area. The wind speed decreases after the air flow passes through the wind-blocking surface of the corrugated beam, causing sand or snow to form deposits on the road surface corresponding to the guardrail. The deposition of sand or snow on the road surface not only increases the workload of road maintenance operations, but also causes the road friction coefficient to decrease, bringing driving safety hazards and even interrupting traffic.

[0004] In addition, when installing the corrugated beam guardrail, a wind block is first installed on the upper end of the column, and then the contacting ends of the two adjacent corrugated beams are overlapped and connected to the wind block by riveting. During the installation process, multiple people are required to simultaneously control the positions of the two corrugated beams to make them overlap, and then rivet them. As a result, the installation process requires the cooperation of multiple people, resulting in low installation efficiency and high installation cost. Utility Model Content

[0005] In response to the problems existing in the existing technology, the utility model provides a highway guardrail suitable for areas with wind-blown sand and wind-blown snow, so as to solve the problem that the existing guardrail causes sand or snow to accumulate on the road surface, thereby increasing the workload of road maintenance operations and causing a decrease in the road surface friction coefficient, thereby causing safety hazards.

[0006] The utility model is realized through the following technical solutions:

[0007] A highway guardrail suitable for windblown sand and windblown snow areas, comprising a column, a crossbeam and a connector;

[0008] The lower ends of the columns are used to be pre-buried in the road surface, and a plurality of cross beams are arranged on the columns from top to bottom at intervals. The cross beams are connected to the columns through connectors, and both ends of the cross beams extend to the columns at the far end. Two horizontally adjacent cross beams are connected by connectors.

[0009] The columns and / or cross beams are rectangular tubes, round tubes or prismatic tubes.

[0010] Preferably, the columns and / or beams are provided with a coating.

[0011] Preferably, the connecting piece is a slot structure with an opening on one side, and the crossbeam is arranged in the slot and connected by a fastener.

[0012] Preferably, the connecting member includes a first transverse plate, a first vertical plate and a second transverse plate;

[0013] The first vertical plate is fixed to the column, the connecting end of the first horizontal plate and the connecting end of the second horizontal plate are respectively connected to the upper end and the lower end of the first vertical plate, and the end of the crossbeam is arranged between the first horizontal plate and the second horizontal plate and connected by fasteners.

[0014] Preferably, when the crossbeam is a round tube, the connecting member includes a first sub-connecting member and a second sub-connecting member;

[0015] One end of the first sub-connector is connected to the column, and the other end of the first sub-connector is connected to one end of the second sub-connector through the column; the other end of the second sub-connector is welded to the first crossbeam.

[0016] Preferably, the first sub-connector is a C-shaped slot structure, the closed end of the C-shaped slot is connected to the column through a fastener, bolt holes are set on the upper and lower end faces of the C-shaped slot, and one end of the second sub-connector extends into the C-shaped slot and is fixed by a bolt.

[0017] Preferably, the connector is a sleeve, and the ends of two laterally adjacent beams are sleeved with the sleeve.

[0018] Preferably, a positioning piece is provided on the sleeve for positioning the crossbeam.

[0019] Preferably, the positioning member is a fastener provided on the sleeve, and the sleeve and the crossbeam are connected by the fastener.

[0020] A highway, wherein the highway guardrails are provided on both sides of the road surface or / and the central dividing strip.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] The utility model provides a highway guardrail suitable for areas with wind-blown sand and wind-blown snow, comprising a column and a plurality of cross beams, wherein the lower end of the column is buried in the road surface, eliminating the base of the lower part of the existing column, reducing the airflow obstruction effect of the column, and thus avoiding the accumulation of wind-blown sand and wind-blown snow on the column; in addition, a tubular cross beam is used instead of a corrugated beam plate, and the windward area of ​​the tubular cross beam is smaller than the area of ​​the corrugated beam plate, which effectively reduces the wind-blocking area, thereby increasing the passability of wind-blown sand and wind-blown snow, thereby reducing the increase in road maintenance workload caused by the precipitation of wind-blown sand and wind-blown snow, and at the same time reducing the driving safety hazards caused by the decrease in the road friction coefficient due to the precipitation of wind-blown sand and wind-blown snow. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a highway guardrail provided in Example 1 of the present utility model;

[0024] Figure 2 A side view of the first connecting member provided in Example 1 of the present utility model;

[0025] Figure 3 A top view of the first connecting member provided in Example 1 of the present utility model;

[0026] Figure 4 A schematic structural diagram of another guardrail provided in Example 1 of the present utility model;

[0027] Figure 5 A side view of the first sub-connector provided in Example 2 of the present utility model;

[0028] Figure 6 A top view of the first sub-connector provided in Example 2 of the present utility model;

[0029] Figure 7 A side view of the second sub-connector provided in Example 2 of the present utility model;

[0030] Figure 8 This is a top view of the second sub-connector provided in Example 2 of the present utility model.

[0031] Figure 9 This is a schematic structural diagram of the highway guardrail provided in Example 4 of the present utility model.

[0032] In the figure: column 1, first crossbeam 2, second crossbeam 3, first connecting member 4 and second connecting member 5; DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] A highway guardrail suitable for windblown sand and windblown snow areas, comprising a column 1, a crossbeam and a connector;

[0035] The lower end of the column 1 is used to be pre-buried in the road surface, and multiple beams are arranged on multiple columns from top to bottom at intervals. The beams are connected to the columns through connectors. The two ends of the beams extend to the columns at the far end, and two adjacent beams in the horizontal direction are connected by connectors.

[0036] The cross section of the cross beam is a hollow tube with circular, square, diamond or other cross sections.

[0037] In some embodiments, the columns 1 and / or the beams are coated with a coating, which is used to improve the wear resistance and weathering resistance of the columns 1 and / or the beams to reduce the adhesion of sand particles.

[0038] The wear-resistant coating gives the posts and crossbars excellent wear resistance, can resist the friction and wear of sand, and reduce the adhesion of sand on the surface of the guardrail posts.

[0039] Anti-weathering coating has good weather resistance and anti-aging properties, and can resist the erosion of natural factors such as wind, sand, and ultraviolet rays. It can maintain the integrity and beauty of the coating and reduce the adhesion of sand particles on the coating surface.

[0040] In some embodiments, the coating is any one of polyurethane elastic coating, acrylic coating, silicone resin coating or nano anti-sand coating.

[0041] In the present invention, the lower end of the column 1 is pre-buried in the road surface, and the nodes of multiple beams and columns are connected to each other by connecting pieces, and the ends of the beams extend to the columns at the far end, and two adjacent beams in the transverse direction are connected by connectors; through the above-mentioned guardrail structure, it mainly solves the two core problems of existing guardrails, namely the problem of sand and snow accumulation, and the problem of rapid installation; for the problem of easy sand and snow accumulation of corrugated beam plate guardrails, the highway guardrail of the present application is fixed by pre-buried method at the bottom of the column, and the lower end of the guardrail is effectively relative to the base of the existing guardrail. Reducing the wind-blocking area and using tubular beams instead of corrugated beams can effectively reduce the windward area of ​​the beams, thereby increasing the passability of wind-blown sand and wind-blown snow, thereby avoiding the increase in road maintenance workload caused by the precipitation of wind-blown sand and wind-blown snow. At the same time, it can also avoid the potential driving safety hazards caused by the decrease in road friction coefficient due to the precipitation of wind-blown sand and wind-blown snow; secondly, the beams are connected to the columns through connecting parts, and the two adjacent beams in the horizontal direction are connected to form a whole through connectors. This installation method greatly improves the installation efficiency of the guardrail and reduces the installation cost of the guardrail.

[0042] Example 1

[0043] See Figure 1-4 A highway guardrail suitable for wind-blown sand and wind-blown snow areas includes a column, and a first crossbeam 2 and a second crossbeam 3 installed between two adjacent crossbeams.

[0044] refer to Figure 1 The first crossbeam 2 and the second crossbeam 3 are both made of square tubes.

[0045] It should be noted that the first crossbeam 2 and the second crossbeam 3 are both made of square tubes, so when the staff installs them, there is no need to distinguish between the first crossbeam 2 and the second crossbeam 3. Therefore, making the first crossbeam 2 and the second crossbeam 3 both of square tubes can effectively improve the efficiency of guardrail installation.

[0046] In this embodiment, the length of the beam is 8 meters, the distance between the two columns is 4 meters, and the 2-meter positions on both sides of the center of the beam are connected to the columns through connectors, that is, the beam is connected to the two columns, and the end of the beam extends 2 meters outside the column. The two adjacent beams are connected by connectors.

[0047] It should be noted that the distances and lengths of the above columns and beams are for illustrative purposes only, and the spacing of the columns and the length of the beams can be adjusted according to the conditions of the highway and the construction situation.

[0048] The connector in this embodiment is a sleeve, and the ends of two adjacent beams are sleeved on the outside of the sleeve. The sleeve is provided with a strip bolt hole, and the end of the beam is provided with a bolt hole corresponding to the strip bolt hole. The sleeve is connected to the end of the beam by multiple bolts.

[0049] The two ends of the sleeve can also be sleeved on the outside of the two beams. In order to improve the overall aesthetics of the beam, it is preferred that the ends of the two adjacent beams are sleeved on the outside of the sleeve.

[0050] The column is provided with a first connecting member 4 and a second connecting member 5 of the same structure. The first connecting member 4 and the second connecting member 5 are C-shaped structures. The first crossbeam 2 and the second crossbeam 3 are connected to the first connecting member 4 and the second connecting member 5 respectively.

[0051] See Figure 2 , the first connecting member 4 includes a first bolt, a first transverse plate 41, a first vertical plate 42 and a second transverse plate 43;

[0052] The connecting end of the first horizontal plate 41 and the connecting end of the second horizontal plate 43 are respectively connected to the upper end and the lower end of the first vertical plate 42; the first horizontal plate 41 is provided with a plurality of first through holes 411; the second horizontal plate 43 is provided with a plurality of first screw holes 441, wherein the end of the first crossbeam 2 is provided with a plurality of second through holes, and the first through holes, the second through holes and the first through holes are coaxially arranged with the first through hole 411; the first bolt passes through the first through hole 411 and the second through hole in sequence and is threadedly connected with the first screw hole 441 to realize the connection between the first crossbeam and the first connecting member.

[0053] It should be noted that by setting the first connecting member 4 and the second connecting member 5 to be the same, it is not necessary for the staff to distinguish between the first connecting member 4 and the second connecting member 5 during installation. Therefore, setting the first connecting member 4 and the second connecting member 5 to be the same can effectively improve the efficiency of guardrail installation.

[0054] The first crossbeam 2 and the first connecting member 4 can also be fixed by the cooperation of the first bolt and the nut.

[0055] In this embodiment, the second connecting member 5 has the same structure as the first connecting member 4, and the second connecting member 5 and the connection method thereof with the second beam will not be described in detail here.

[0056] The first connecting member 4 is fixed to the column by bolts, and the structure is as follows:

[0057] The first vertical plate 42 is provided with a plurality of third through holes for the second bolts to pass through;

[0058] The column 1 is provided with a plurality of second screw holes for matching with the second bolts.

[0059] It should be noted that by opening a plurality of third through holes for the second bolts to pass through in the first vertical plate 42, and opening a plurality of second screw holes that cooperate with the second bolts in the column 1, the column 1 and the first connecting member 4 can be fixed by the threaded cooperation between the second bolts and the second screw holes.

[0060] It should also be noted that the second stud can also achieve fixation of the column 1 and the first connecting member 4 by cooperating with the nut.

[0061] It is worth noting that the column 1 can be fixed to the first connecting member 4 by a second bolt, or can be fixed to the first connecting member 4 by welding. Those skilled in the art can make the choice according to their needs.

[0062] Example 2

[0063] The difference between this embodiment and embodiment 1 lies in the shape of the crossbeam and the structure of the connecting piece. The rest of the structures are the same. The differences are described in detail below, and the similarities are not described here.

[0064] See Figure 4-8 A highway guardrail suitable for windblown sand and windblown snow areas includes a column, and a first crossbeam 2 and a second crossbeam installed between two adjacent crossbeams, wherein the first crossbeam 2 and the second crossbeam 3 are both made of round tubes.

[0065] The first connecting member 4 is identical to the second connecting member 5;

[0066] The first connecting member 4 includes a first sub-connecting member 45, a second sub-connecting member 46, a plurality of third bolts and a plurality of fourth bolts 47;

[0067] One end of the first sub-connector 45 is connected to the column 1 via a third bolt, and the other end is connected to one end of the second sub-connector 46 via a fourth bolt 47 ; the other end of the second sub-connector 46 is welded to the first beam 2 .

[0068] It should be noted that one end of the first sub-connector 45 is connected to the column 1 through a third bolt, and the other end is connected to one end of the second sub-connector 46 through a fourth bolt 47. The other end of the second sub-connector 46 is welded to the first beam 2. Before installation, the second sub-connector 46 is welded to the first beam 2, and then the first sub-connector 45 is used to install and fix them to the column 1 and the second sub-connector 46 respectively, to complete the assembly of the first connector 4 with the column 1 and the first beam 2.

[0069] Specifically, the first sub-connector 45 includes: a third transverse plate 451, a second vertical plate 452 and a fourth transverse plate 453;

[0070] The connecting end of the third horizontal plate 451 and the connecting end of the fourth horizontal plate 453 are connected to the upper end and the lower end of the second vertical plate 452 respectively; the third horizontal plate 451 is provided with a plurality of fourth through holes 4511 for the fourth bolts 47 to pass through;

[0071] The fourth horizontal plate 453 defines a plurality of third screw holes 4531 for the fourth bolts 47 to pass through, and the plurality of third screw holes 4531 are coaxially arranged with the plurality of fourth through holes 4511 ; the second vertical plate 452 defines a plurality of fifth through holes for the third bolts to pass through.

[0072] The second sub-connector 46 includes a fifth transverse plate 461 , a third vertical plate 462 and a sixth transverse plate 463 ;

[0073] The first end of the fifth transverse plate 461 and the first end of the sixth transverse plate 463 are connected to the upper end and the lower end of the third vertical plate 462, respectively. The second end of the fifth transverse plate 461 and the second end of the sixth transverse plate 463 are welded to both sides of the first crossbeam 2, respectively. The height of the third vertical plate 462 is less than the distance between the third transverse plate 451 and the fourth transverse plate 453.

[0074] The fifth transverse plate 461 is provided with a plurality of sixth through holes 4611 for the fourth bolts 47 to pass through; the sixth transverse plate 463 is provided with a plurality of seventh through holes 4631 for the fourth bolts 47 to pass through, and the seventh through holes 4631 are coaxially arranged with the sixth through holes 4611; the column 1 is provided with a plurality of fourth screw holes that cooperate with the third bolts.

[0075] It should be noted that, through the first sub-connector 45 and the second sub-connector 46 disclosed above, since the second sub-connector 46 is connected to the first crossbeam 2 by welding, it is difficult to install the second sub-connector 46 directly by bolts. Therefore, the present application provides a first sub-connector 45, and connects the first sub-connector 45 to the column 1 and the second sub-connector 46 respectively, which can effectively reduce the difficulty of assembling the first connector 4.

[0076] It should also be noted that when assembling the first sub-connector 45 and the second sub-connector 46, the first sub-connector 45 can be assembled with the column 1 by the third bolt, and then the second sub-connector 46 can be placed between the third cross plate 451 and the fourth cross plate 453 of the first sub-connector 45, and the fourth through hole 4511, the sixth through hole 4611, the seventh through hole 4631 and the third screw hole 4531 are made coaxial, and then the fourth bolt 47 is passed through the fourth through hole 4511, the sixth through hole 4611 and the seventh through hole 4631 in sequence and threadedly engaged with the third screw hole 4531 to fix them.

[0077] The second connecting member 5 of the present application has the same structure as the first connecting member 4 and will not be described in detail here.

[0078] Specifically, the column 1 is made of a square tube.

[0079] It should be noted that the column 1 can be made of a square tube or a tube with other structures, and those skilled in the art can make the choice according to their needs.

[0080] Preferably, the size of the column 1 is a square tube of 130 mm × 130 mm × 6 mm × 2650 mm.

[0081] Preferably, the column 1, the first crossbeam 2, the second crossbeam 3, the first connecting member 4 and the second connecting member 5 of the present application are all made of Q355 steel.

[0082] Example 3

[0083] A highway guardrail suitable for wind-blown sand and wind-blown snow areas, wherein a plurality of sleeves are provided on the upright posts of the guardrail, and the ends of a first crossbar and a second crossbar are respectively connected to the sleeves of the two upright posts.

[0084] One end of the sleeve is sleeved with one end of the first beam 2, and the other end is used to be sleeved with one end of the first beam 2 of another column 1, and / or, one end of the sleeve is sleeved with one end of the second beam 3, and the other end is used to be sleeved with one end of the second beam of another column 1.

[0085] The shape of the sleeve matches the shape of the crossbar, and the ends of the two adjacent crossbars close to each other are inserted into the same sleeve. At the same time, bolts can be set on the sleeve, and the ends of the sleeve and the crossbar are connected by bolts to achieve a stable connection between the crossbar and the sleeve.

[0086] In this embodiment, the provision of the sleeve can facilitate the installation and connection of the beam between the two guardrails and improve the stability of the guardrails.

[0087] Example 4

[0088] See Figure 9 A highway guardrail suitable for wind-blown sand and wind-blown snow areas, wherein a plurality of sleeves are provided on the posts of the guardrail, and the two ends of the first cross bar and the second cross bar are respectively connected to the sleeves of the two posts.

[0089] The first cross bar and the second cross bar are prismatic tubes. The use of prismatic tubes can effectively reduce the windward area of ​​the cross bar, thereby reducing wind resistance, improving the passability of wind-blown sand or wind-blown snow, and avoiding the accumulation of wind-blown sand or snow at the guardrail position.

[0090] The prismatic tube can be fixed to the column using the installation methods of Example 2 and Example 3.

[0091] Example 5

[0092] A highway, wherein the above-mentioned highway guardrails are provided on both sides of the road surface or / and the central dividing strip.

[0093] The roads mentioned are expressways, first-class roads, second-class roads, third-class roads and fourth-class roads.

[0094] Based on the guardrail provided above, this application also provides guardrail installation steps.

[0095] Step 1. Preparation: Transport the materials to the construction site, inspect the appearance quality and anti-corrosion treatment of the column 1, the first beam 2, the second beam 3, the first connecting piece 4 and the second connecting piece 5, and review the structural dimensions to ensure consistency with the design documents.

[0096] Step 2: Lofting: Determine and lay out the position of column 1 according to the requirements of the design documents.

[0097] Step 3, piling: The column 1 is constructed mechanically according to the layout position. The construction methods include driving, drilling and excavation, and the gaps are poured with cement mortar.

[0098] Step 4, beam installation: Fix the first beam 2 and the second beam 3 to the columns with bolts according to the requirements of the design documents. Tighten the bolts after the entire structure is assembled.

[0099] Step 5. Install the splicing sleeve: Place the splicing sleeve at the connection position of the two beams and insert it into the interior of the beam, and fix it with bolts.

[0100] Step 6. Bolt tightening: After all structures are assembled, tighten the bolts and tighten them to the designed preload as required.

[0101] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A highway guardrail suitable for windblown sand and windblown snow areas, characterized in that: Including columns, beams and connectors; The lower ends of the columns are used to be pre-buried in the road surface, and a plurality of cross beams are arranged on the columns from top to bottom at intervals. The cross beams are connected to the columns through connectors, and both ends of the cross beams extend to the columns at the far end. Two horizontally adjacent cross beams are connected by connectors. The columns and / or cross beams are rectangular tubes, round tubes or prismatic tubes.

2. A highway guardrail suitable for windblown sand and windblown snow areas according to claim 1, characterized in that: The columns and / or beams are provided with a coating.

3. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 1, characterized in that: The connecting piece is a slot structure with an opening on one side, and the crossbeam is arranged in the slot and connected by a fastener.

4. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 1, characterized in that: The connecting member includes a first transverse plate, a first vertical plate and a second transverse plate; The first vertical plate is fixed to the column, the connecting end of the first horizontal plate and the connecting end of the second horizontal plate are respectively connected to the upper end and the lower end of the first vertical plate, and the end of the crossbeam is arranged between the first horizontal plate and the second horizontal plate and connected by fasteners.

5. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 1, characterized in that: When the crossbeam is a circular tube, the connecting member includes a first sub-connecting member and a second sub-connecting member; One end of the first sub-connector is connected to the column, and the other end of the first sub-connector is connected to one end of the second sub-connector; the other end of the second sub-connector is welded to the crossbeam.

6. A highway guardrail suitable for windblown sand and windblown snow areas according to claim 5, characterized in that: The first sub-connector is a C-shaped slot structure, the closed end of the C-shaped slot is connected to the column through a fastener, bolt holes are set on the upper and lower end faces of the C-shaped slot, and one end of the second sub-connector extends into the C-shaped slot and is fixed by a bolt.

7. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 1, characterized in that: The connector is a sleeve, and the ends of two transversely adjacent beams are sleeved with the sleeve.

8. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 7, characterized in that: The sleeve is provided with a positioning piece for positioning the crossbeam.

9. The highway guardrail suitable for wind-blown sand and wind-blown snow areas according to claim 8, characterized in that: The positioning piece is a fastener provided on the sleeve, and the sleeve and the crossbeam are connected via the fastener.

10. A highway, characterized in that: The highway guardrail according to any one of claims 1 to 9 is provided on both sides of the road surface or / and the central dividing strip.

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