KR101737481B1 - Guard rail for road - Google Patents

Guard rail for road Download PDF

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Publication number
KR101737481B1
KR101737481B1 KR1020150050174A KR20150050174A KR101737481B1 KR 101737481 B1 KR101737481 B1 KR 101737481B1 KR 1020150050174 A KR1020150050174 A KR 1020150050174A KR 20150050174 A KR20150050174 A KR 20150050174A KR 101737481 B1 KR101737481 B1 KR 101737481B1
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KR
South Korea
Prior art keywords
guard rail
fastening
support
reinforcing
guardrail
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KR1020150050174A
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Korean (ko)
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KR20160120944A (en
Inventor
김찬은
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김찬은
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Priority to KR1020150050174A priority Critical patent/KR101737481B1/en
Publication of KR20160120944A publication Critical patent/KR20160120944A/en
Application granted granted Critical
Publication of KR101737481B1 publication Critical patent/KR101737481B1/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts

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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 present invention relates to a guardrail for a road, wherein the guardrail support is formed with an outer projecting reinforcement, an inner recessing reinforcement, an elastic reinforcement, and a tightening reinforcement around the periphery thereof. The elastic reinforcing portion is connected to a corresponding one of the two surfaces formed with the outer protruding reinforcing portion and the inner depressing reinforcing portion and bent inwardly concave toward the longitudinal direction of the guard rail supporting portion to absorb and cancel the external impact.
Therefore, since the reinforcing means for reinforcing the guard rail supporter is formed around the guard rail supporter, the thickness of the guard rail supporter can be made thinner or the desired strength can be maintained even if the cross-sectional area of the guard rail supporter is further reduced, Accordingly, the manufacturing cost of the guardrail support can be reduced. In addition to reinforcing the one side strength of the guard rail support by the elastic reinforcement, the elastic reinforcement bent in arc form during external impact is resiliently deformed and restored, thereby absorbing and offsetting the external impact . Therefore, some degree of permanent deformation of the guard rail due to an external impact is prevented, and some degree of protection is prevented so that the object hitting the guard rail is not severely damaged.

Description

Guard rail for road

The present invention relates to a guardrail for a road, and more particularly to a guardrail for a road, which is capable of improving the strength of the guardrail support and absorbing or canceling external impacts, thereby preventing permanent deformation of the guardrail , And a position of a guard rail support in a horizontal direction can be easily adjusted.

The guard rail for the road is a protection device installed at both ends and the center of the road to protect the life of the driver from accidents such as lane departure due to driver's carelessness, The guard rail is also provided for guiding the driver's driving direction and preventing the pedestrian from crossing the road.

Such guard rails for roads are provided with a certain length of pillar after perforating the road surface at a certain depth, and guard rails for protecting the vehicle are provided on the pillar. In other words, the life of the guardrail is designed to be used for a long period of time as long as there is no local damage due to an external impact, and it can be partially repaired or replaced even if the function is lost due to an external impact.

However, as the vehicle traveling on the road gradually grows larger and heavier and the degree of breakage of the road gradually increases due to the increase of the number of passing vehicles, it is periodically carried out periodically to cover the entire road surface or the front surface for the safety of the road user within a short period of time have. Therefore, there is a problem that the height of the guard rail is lowered as much as the ascon covering the road, and thus the risk of occurrence of the second and third major human accidents due to the vehicle collision occurs.

Further, in order to raise the height of the lowered guard rail to meet the requirements, there is a problem that the existing guard rail support is removed and the guard rail support corresponding to the new regulation is required to be installed. In addition, the costs of cutting, crushing and transporting and disposing of industrial wastes are increased before the Ascon covering, and especially when environmental problems are serious nowadays, many losses are incurred.

Korean Patent Application No. 10-02014-0005055

SUMMARY OF THE INVENTION It is an object of the present invention to provide a guardrail for a road which can improve the strength of a guardrail support.

Another object of the present invention is to provide a guardrail for a road that absorbs and cancels an external impact to prevent permanent deformation of the guard rail due to an external impact to some extent and prevents an object struck against the guard rail from being severely damaged have.

It is still another object of the present invention to provide a guardrail for a road in which the position of the guardrail support in the horizontal direction can be easily adjusted.

It is still another object of the present invention to provide a guardrail for a road in which the binding member and the guardrail support are securely engaged.

It is still another object of the present invention to provide a guardrail for a road in which a guardrail support orthogonal to one of the coupling members is rigidly coupled.

In order to achieve the above object, a guard rail for a road according to the present invention is installed at both sides of a road or on both sides of a road and is vertically and horizontally arranged at regular intervals along the road to form a guard rail, A guard rail support having an opening formed along a longitudinal direction on a surface thereof; A binding member installed at the intersection of the vertically and horizontally arranged guard rail supports for fixing the two guard rail supports intersecting; And a fastening member fastened to the guard rail support member and the binding member to fix them.

Another feature of the guard rail of the present invention is that the guard rail support comprises an outer projected reinforcing portion bent at a central portion of the corresponding two surfaces so as to protrude outward along the longitudinal direction of the guard rail support to reinforce the guard rail support, An inner protrusion reinforcing portion which is bent at both sides of the outer protrusion reinforcing portion so as to be protruded inward along the longitudinal direction of the guard rail supporter to reinforce the guard rail supporter and connected to a corresponding one of the two surfaces formed with the outer protrusion reinforcing portion and the inner recess reinforcing portion, An elastic reinforcing portion bent inwardly concave along the longitudinal direction of the rail support and absorbing and offsetting an external impact and formed on the corresponding surface of the surface on which the elastic reinforcing portion is formed, An opening portion for allowing a fastening position of the member to be varied, and an opening portion for bending inwardly on both sides of the opening portion, The support is made of a reinforced edge fastening to prevent the guard rail support bent in the lateral direction.

According to another aspect of the present invention, a binding member includes a first support plate supported on a surface of a guard rail support having an opening formed therein, a first through hole formed on both sides of the first support plate, A first clip part bent from both sides of both ends of the guard rail support part and made of a first clip plate closely attached to an outer projected reinforcing part of the guard rail support; A second support plate which is supported on one surface of another guard rail support member orthogonal to the guard rail support and a second through hole which is formed on both sides of the second support plate and which is bent on both sides of both ends of the second support plate, And a second clip portion composed of a second clip plate which is in close contact with the second clip portion.

According to another aspect of the present invention, there is provided a guardrail for a road, wherein the fastening member includes a fastening bolt having a bolt head supported by a guard rail support and a male screw portion penetrating the fastening member, a fastening bolt fastened to a male threaded portion of the fastening bolt, And a washer which is fitted in a male screw portion between the nut and the coupling member and is in tight contact with the coupling member when the coupling nut is tightened so that the coupling member is brought into close contact with the guard rail support frame; A bolt head of the fastening bolt is formed with a fastening jaw so that the fastening nut is engaged with the fastening end of the guard rail support when the fastening bolt is tightened.

Another feature of the road guard rail according to the present invention is that the first clip portion of the first clip portion is provided with the first fastening portion and the first fastening portion so as to be respectively inserted into the two internal dent reinforcing portions when the first clip portion is fitted to the guard rail support, And a second fastening portion and a second fastening end portion are formed on the second clip portion of the second clip portion so that the second fastening portion and the second fastening end portion are respectively inserted into the two inner dent reinforcing portions when the second clip portion is fitted to the guard rail support .

The guardrail support according to the present invention as described above has an outer projecting reinforcing portion, an inner recessing reinforcing portion, an elastic reinforcing portion, and a tightening reinforcing end formed around the periphery thereof. Therefore, since the reinforcing means for reinforcing the guard rail supporter is formed around the guard rail supporter, the thickness of the guard rail supporter can be made thinner or the desired strength can be maintained even if the cross-sectional area of the guard rail supporter is further reduced, Accordingly, the manufacturing cost of the guardrail support can be reduced.

The guard rail support base of the present invention is provided with an elastic reinforcing portion at one side along the longitudinal direction, and the elastic reinforcing portion is connected to a corresponding side of two surfaces formed with the external protruding reinforcing portion and the internal hollowing reinforcing portion, It is bent into a concave arc inward and absorbs and cancels the external impact. Therefore, not only the one side strength of the guard rail support is reinforced by the elastic reinforcement, but also the elastic reinforcement bent in the arc shape during the external impact is resiliently deformed and restored, thereby absorbing and offsetting the external impact . Therefore, some degree of permanent deformation of the guard rail due to an external impact is prevented, and some degree of protection is prevented so that the object hitting the guard rail is not severely damaged.

The guard rail support base of the present invention has an opening formed on one side of the guardrail support along the longitudinal direction, and fastening bolts and a fastening nut of the fastening member are fastened to the opening. The fastening bolt and the fastening nut can be moved to a desired position along the opening in a state where the fastening bolt and the fastening nut are assembled in the opening portion of the guard rail support member and the fastening nut can be fastened to the guard rail support when the fastening member is positioned. Therefore, according to the present invention, since the fastening member is freely movable along the opening, the position of the guard rail support in the horizontal direction can be easily adjusted. Accordingly, when the height of the guard rail is relatively lowered by the road- It is possible to adjust the height of the guard rail support in the horizontal direction.

In the present invention, fastening reinforcing end portions bent inward are formed on both sides of the opening portion, and fastening tacks are formed on both sides of the bolt head of the fastening bolt so as to be fastened to the fastening end portions. Therefore, when the fastening nut is tightened, the fastening jaw of the bolt head is engaged with the fastening reinforcing end, thereby maximizing the fastening force between the guard rail support and the fastening member, thereby firmly coupling the fastening member and the guard rail support.

The binding member of the present invention has a pair of fastening points formed on the first support plate of the first clip portion and a pair of first clip plates on both sides of the first support plate. A pair of fastening points are formed on the second support plate of the second clip portion and a pair of second clip plates are provided on both sides of the second support plate. Thus, the two portions of the first clip portion are fastened to the guard rail support in the vertical direction, and the two portions of the second clip portion are fastened to the guardrail support in the horizontal direction. Therefore, one coupling member is fastened to both sides of the guardrail support in the vertical direction and fastened to both sides of the guardrail support in the horizontal direction, so that the guardrail support orthogonal to each other is firmly coupled by one coupling member.

1 is a perspective view showing a guard rail support of a road guard rail according to the present invention;
2 is a perspective view showing a binding member of a guardrail for a road according to the present invention.
3 is an exploded perspective view showing a guardrail for a road according to the present invention.
4 is a perspective view
5 is a perspective view showing another embodiment of the binding member.
Figure 6 is a partial perspective view of another embodiment of a guardrail support according to the present invention.

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

FIG. 1 is a perspective view showing a guard rail support of a road guard rail according to the present invention, FIG. 2 is a perspective view showing a binding member of a road guard rail according to the present invention, FIG. 4 is a perspective view of FIG. 3. FIG.

The road guard rail according to the present invention comprises a guard rail support 10, a binding member 20, and a fastening member 30.

The guard rail supports 10 are installed at the center of the road or on both sides of the road and are vertically and horizontally arranged at equal intervals along the road to form guard rails and are in the form of a hollow flat pipe and have openings 14 are formed.

This guardrail support 10 is provided with an outer projected reinforcing portion 11, an inner recessed reinforcing portion 12, an elastic reinforced portion 13, an opening portion 14 and a tightening reinforcing end portion 15.

The outer projected reinforcing portion 11 is bent to protrude outward along the longitudinal direction of the guardrail support 10 at the central portion of the corresponding two surfaces to reinforce the guardrail support 10. The inner recessed reinforcing portion 12 is bent on the opposite sides of the outer projected reinforcing portion 11 so as to protrude inward along the longitudinal direction of the guardrail support 10 to reinforce the guardrail support 10. The resilient reinforcing portion 13 is connected to one side of a corresponding one of the two sides of the external protrusion reinforcing portion 11 and the internal resilient reinforcing portion 12 and is formed into a concave arc shape inwardly along the longitudinal direction of the guard rail support 10, And absorbs and cancels external impacts. The opening 14 is formed in the corresponding surface of the surface on which the elastic reinforcing part 13 is formed and is elongated along the longitudinal direction at the center so that the fastening position of the fastening member 30 can be varied. The tightening reinforcing end portions 15 are bent inward on both sides of the opening portion 14 so that the fastening members 30 are supported and the guard rail supporting rods 10 are prevented from being bent in the lateral direction.

This guard rail support 10 can be galvanized.

Zinc plating is performed to protect the guardrail support 10 from corrosion. Zinc is a relatively inexpensive metal, good in processability and is often used when corrosion resistance is required.

One of the other advantages of zinc plating is that if the pinholes are present on the surface of the plating or when a small scratch is applied, the by-products formed by the oxidation of the zinc firstly prevent the inside of the steel by corrosion. The advantage is obvious compared to the rusting of the steel part when the paint is peeled off.

Zinc plating methods include electroplating and hot dip galvanizing. The electroplating method is an electrolysis method. The molten plating is a method of immersing the guard rail supporter (10) in a molten zinc molten metal for a predetermined time and then cooling it. Although there are advantages and disadvantages, the plating of the wire rod used in the wire uses the melting method. Although the appearance and uniformity of the melting method is lower than that of the electroplating, there is an advantage that a composite layer having two materials mixed at the joining portion of the zinc and the guardrail support 10 is formed while being plated at a high temperature, Zinc plating is weak to acids and alkalis, and its melting point is relatively low at 420 캜, so it is not preferable to use it for a long time at a temperature of 300 캜 or higher.

The zinc plating is coated on the periphery of the guard rail support 10 as described above and may also be coated on the binding member 20 to be described later.

The binding member 20 is mounted at the intersection of the vertically and horizontally arranged guardrail supports 10 and fixes the two guardrail supports 10 that intersect. The binding member 20 includes a first clip portion 21 and a second clip portion 25.

The first clip portion 21 includes a first support plate 22 supported on one side of a guard rail support 10 on which the opening 14 is formed and a second support plate 22 formed on both sides of the first support plate 22, And a first clip plate 24 which is bent at both sides of both ends of the first support plate 22 and is in close contact with the outer projected reinforcement portion 11 of the guard rail support 10.

The second clip portion 25 includes a second support plate 26 supported on one side of the other guardrail support 10 orthogonal to the guardrail support 10 and a second support portion 26 formed on both sides of the second support plate 26, Hole 27 and a second clip plate 28 which is bent at both sides of both ends of the second support plate 26 and is in close contact with the outer projected reinforcing portion 11 of the guard rail support 10.

The fastening member 30 is fastened to the guard rail supporter 10 and the binding member 20 to fix them. The fastening member 30 includes a fastening bolt 31 in which the bolt head 32 is supported by the guard rail support 10 and a male screw portion 34 is passed through the fastening member 20, A fastening nut 35 fastened to the male threaded portion 34 and fastening the guard rail support 10 and the fastening member 20 and a male threaded portion 34 fitted between the fastening nut 35 and the fastening member 20 And a washer 36 which comes into tight contact with the binding member 20 when tightening the fastening nut 35 and tightly attaches the binding member 20 to the guard rail support base 10.

A fastening bolt 33 is formed on the bolt head 32 of the fastening bolt 31 so that the fastening bolt 31 is engaged with the fastening end 15 of the guard rail support 10 when fastened to the fastening bolt 31 have.

The road guard rail according to the present invention having such a configuration is assembled as follows.

First, the guard rail support base 10 is fixed at equal intervals along the center of the road on which the guard rail is to be installed or both sides of the road. The guard rail support base 10 is vertically installed and fixed on the ground at equal intervals .

When the guard rail supports 10 in the vertical direction are arranged at equal intervals on the center or both sides of the road, the binding members 20 are engaged with the guard rail supports 10.

The binding member 20 is first coupled to the guard rail support 10 in the vertical direction, and the first clip portion 21 is fitted to the guard rail support 10 in the vertical direction. The first support plate of the first clip portion 21 is positioned in front of the opening portion 14 of the guardrail support 10 and the pair of first clip plates 24 are fixed to the outside of the guardrail support 10 (11).

In this state, the fastening bolt 31 is positioned inside the guardrail support 10, and the male screw portion 34 is inserted into the opening 14 of the guard rail support 10 and the first through hole 23). Then, the washer 36 is inserted into the male screw portion 34, and then the male screw portion 34 is fastened with the lock nut 35.

At this time, if the fastening nut 35 is slightly tightened, the fastening bolt 33 of the fastening bolt 31 is seated on the fastening reinforcing end 15 of the guard rail support 10 and the fastening bolt 31 is fastened to the guard rail support 10, The fastening member 30 is loosely coupled.

In this state, after the position of the binding member 20 is adjusted to the position where the guardrail support 10 in the horizontal direction is to be installed, the binding nut 35 is tightened to connect the binding member 20 to the vertical guardrail support The guard rail support base 10 may be fixed to the binding member in a state where the binding member 20 is assembled to the vertical guardrail support frame 10, It is also possible to adjust the horizontal position.

When the binding member 20 is fixed to the vertical guardrail support 10, the horizontal guardrail support 10 is pushed into the first clip portion 21 of the binding member 20.

After the fastening bolts 31 are positioned in the horizontal guardrail support 10, the male threaded portions 34 of the fastening bolts 31 are screwed into the opening 14 of the guard rail support 10 and the fastening members 20, Through the second through hole (27). Then, the washer 36 is inserted into the male screw portion 34, and then the male screw portion 34 is fastened with the lock nut 35.

When the fastening nut 35 is fastened to the male screw portion 34 of the fastening bolt 31, the fastening protrusion 33 is seated on the fastening reinforcing end 15 of the guard rail support 10, The member 20, and the fastening member 30 are engaged.

The road guard rail according to the present invention has the following advantages.

First, in the guardrail support 10 of the present invention, the outer projected reinforcing portion 11, the inner recessed reinforcing portion 12, the elastic reinforcing portion 13, and the tightening reinforcing end portion 15 are formed around the periphery have.

Therefore, since the reinforcing means for reinforcing the guardrail support 10 are formed on the four sides of the guardrail support 10, the thickness of the guardrail support 10 can be made thinner or the cross-sectional area of the guardrail support 10 It is possible to maintain the desired strength even if the diameter is further reduced, thereby reducing the manufacturing cost of the guardrail support 10.

Second, in the guard rail support 10 of the present invention, an elastic reinforcing portion 13 is formed at one side along the longitudinal direction. The elastic reinforcing portion 13 includes an outer projecting reinforcing portion 11 and an inner- And is curved inwardly concave toward the inside along the longitudinal direction of the guard rail supporter 10 to absorb and offset external impacts.

Therefore, not only the one-side strength of the guard rail support 10 is reinforced by the elastic reinforcing portion 13, but also the elastic reinforcing portion 13 bent in an arc shape when externally impacted is resiliently deformed and restored It absorbs and cancels external shocks. Therefore, some degree of permanent deformation of the guard rail due to an external impact is prevented, and some degree of protection is prevented so that the object hitting the guard rail is not severely damaged.

The guard rail support 10 of the present invention has an opening 14 formed along the longitudinal direction on one side of the guard rail support 10 and a fastening bolt 31 and a fastening nut 35 ). The fastening bolt 31 and the fastening nut 35 can be moved to a desired position along the opening 14 in a state where the fastening bolt 31 and the fastening nut 35 are bonded to the opening 14 of the guard rail support 10, The fastening nut 35 can be fastened to fix the fastening member 30 to the guard rail support 10.

Therefore, according to the present invention, since the fastening member 30 is freely movable along the opening 14, the position of the guardrail support 10 in the horizontal direction can be easily adjusted, The height of the guard rail supporter 10 in the horizontal direction can be adjusted by loosening the fastening member 30.

Fourthly, the present invention is characterized in that the fastening reinforcing end portion 15 is formed on both sides of the opening portion 14 and is fastened to the fastening reinforcing end portion 15 on both sides of the bolt head 32 of the fastening bolt 31 A fastening jaw 33 is formed.

Therefore, when the fastening nut 35 is tightened, the fastening protrusion 33 of the bolt head 32 is engaged with the fastening reinforcing end 15 to maximize the fastening force between the guard rail supporter 10 and the fastening member 30, The binding member 20 and the guard rail support 10 are reliably engaged.

Fifth, in the binding member 20 of the present invention, a pair of fastening points are formed on the first support plate 22 of the first clip portion 21 and a pair of first clip plates 24 are provided. A pair of fastening points are formed on the second support plate 26 of the second clip portion 25 and a pair of second clip plates 28 are provided on both sides of the second support plate 26.

Accordingly, the two portions of the first clip portion 21 are fastened to the guard rail support 10 in the vertical direction, and the two portions of the second clip portion 25 are fastened to the guardrail support 10 in the horizontal direction. Therefore, since one binding member 20 is fastened to both sides of the guard rail support 10 in the vertical direction and fastened to both sides of the guard rail support 10 in the horizontal direction, 10 are firmly coupled.

5 is a perspective view showing another embodiment of the binding member 20 according to the present invention.

The binding member 20 of the present invention is composed of a first clip portion 21 and a second clip portion 25.

The first clip portion 21 includes a first support plate 22 supported on one side of a guard rail support 10 on which the opening 14 is formed and a second support plate 22 formed on both sides of the first support plate 22, And a first clip plate 24 which is bent at both sides of both ends of the first support plate 22 and is in close contact with the outer projected reinforcement portion 11 of the guard rail support 10. The first clip portion 24 of the first clip portion 21 is provided with a first clip portion 21 and a second clip portion 22 so as to be inserted into the two inner dent reinforcing portions 12 when the first clip portion 21 is inserted into the guard rail support 10, And a first fastening end portion 24b are formed.

The second clip portion 25 includes a second support plate 26 supported on one side of the other guardrail support 10 orthogonal to the guardrail support 10 and a second support portion 26 formed on both sides of the second support plate 26, And a second clip plate 28 which is bent on both side surfaces of both end portions of the second support plate 26 and is in close contact with the outer projected reinforcing portion 11 of the guard rail support 10, (25). The second clip portion 28 of the second clip portion 25 is provided with the second clip portion 25 so that the second clip portion 25 is inserted into the two inner denting reinforcing portions 12 when the second clip portion 25 is inserted into the guard rail support 10, And a second fastening end 28b are formed.

The road guard rail according to the present invention having such a configuration is provided with a guard rail support 10 in a direction perpendicular to the first clip portion 21 and a second clip portion 25 of the binding member 20 and a guard rail support The first fastening portions 24a and the first fastening end portions 24b of the first clip portion 21 are respectively seated on the inner recessed reinforcing portions 12 of the guard rail support 10 in the vertical direction . The second fastening portions 28a and the second fastening end portions 28b of the second clip portion 25 are respectively seated on the inner recessed reinforcing portions 12 of the guard rail support 10 in the horizontal direction.

Therefore, when the first clip portion 21 of the binding member 20 is pushed into the guard rail support 10 in the vertical direction, the first fastening portion 24a and the first fastening end 24a are fastened to the pair of inner- When the guard rail support 10 in the horizontal direction is pushed into the second clip portion 25 of the coupling member 20 so that a pair of inner dent reinforcing portions 12 are engaged with the coupling member 20, And is coupled to the second fastening portion 28a and the second fastening end 28b.

The first fastening portion 24a and the first fastening end 24b of the first clip portion 21 and the second fastening portion 28a and the second fastening end 28b of the second clip portion 25 The guard rail supporter 10 in the vertical direction, the binding member 20 and the guard rail supporter 10 in the horizontal direction are assembled to each other so that the operation of correcting the position of the guard rail supporter 10 in the horizontal direction, And the fastening nut 35 are fastened together.

6 is a partial perspective view showing another embodiment of the guardrail support 10 according to the present invention. The guard rail supports 10 are formed at the center of the road or at both sides of the road and are vertically and horizontally arranged at regular intervals along the road to form guard rails and are in the form of a hollow,

In this guard rail support 10, an outer projected reinforcing portion 11, an inner-recessed reinforcing portion 12, and an elastic reinforcing portion 13 are formed.

The outer projected reinforcing portion 11 is bent to protrude outward along the longitudinal direction of the guardrail support 10 at the central portion of the corresponding two surfaces to reinforce the guardrail support 10. The inner recessed reinforcing portion 12 is bent on the opposite sides of the outer projected reinforcing portion 11 so as to protrude inward along the longitudinal direction of the guardrail support 10 to reinforce the guardrail support 10. The resilient reinforcing portion 13 is connected to one side of a corresponding one of the two sides of the external protrusion reinforcing portion 11 and the internal resilient reinforcing portion 12 and is formed into a concave arc shape inwardly along the longitudinal direction of the guard rail support 10, And absorbs and cancels external impacts.

The resilient reinforcing portion 13 is formed on two opposing surfaces of the four sides of the guard rail supporter 10 to reinforce the guard rail supporter 10 and to maximize the elastic restoring force of the guard rail supporter 10.

The road guard rail according to the present invention has the following advantages.

First, in the guardrail support 10 of the present invention, the outer projected reinforcing portion 11, the inner recessed reinforcing portion 12, the elastic reinforcing portion 13, and the tightening reinforcing end portion 15 are formed around the periphery have.

Therefore, since the reinforcing means for reinforcing the guardrail support 10 are formed on the four sides of the guardrail support 10, the thickness of the guardrail support 10 can be made thinner or the cross-sectional area of the guardrail support 10 It is possible to maintain the desired strength even if the diameter is further reduced, thereby reducing the manufacturing cost of the guardrail support 10.

Secondly, in the guardrail support 10 of the present invention, elastic reinforcing portions 13 are formed on two opposite surfaces of the guardrail support 10 along the longitudinal direction. The elastic reinforcing portions 13 are formed in the outer projecting reinforcing portion 11 and the inner And is curved inwardly concave toward the inside along the longitudinal direction of the guard rail supporter 10 to absorb and offset external impacts.

Therefore, both side strengths of the guard rail support 10 are reinforced by the elastic reinforcing portions 13 formed on both sides, and the elastic reinforcing portions 13 bent in a arc shape during the external impact are elastically deformed It absorbs and compensates for external shocks as they are restored. Therefore, some degree of permanent deformation of the guard rail due to an external impact is prevented, and some degree of protection is prevented so that the object hitting the guard rail is not severely damaged.

The elastic reinforcing portions 13 formed on both sides of the guard rail support 10 not only reinforce the guard rail support 10 but also increase the elastic restoring force of the guard rail support 10. [ Therefore, the thickness of the guardrail support 10 can be further reduced as compared with the prior art, thereby reducing the cost of the product.

On the other hand, the binding member 20 may be coated with an anti-oxidation coating layer.

The antioxidant coating layer is formed by spraying a powder composed of 96 to 98% by weight of chromium oxide (Cr 2 O 3 ) and 2 to 4% by weight of titanium dioxide (TiO 2 ) in the binding member 20, And the hardness is plasma-coated to maintain 900 to 1000 HV.

The antioxidant coating layer is formed by spraying powder composed of 96 to 98% by weight of chromium oxide (Cr 2 O 3 ) and 2 to 4% by weight of titanium dioxide (TiO 2 ).

The reason why the ceramic coating is applied to the outer peripheral surface of the binding member 20 is to prevent abrasion and corrosion. Compared to chrome plating or nickel chrome plating, the ceramic coating is excellent in corrosion resistance, scratch resistance, abrasion resistance, impact resistance and durability.

Chromium oxide (Cr 2 O 3 ) acts as a passivity layer to block oxygen entering the inside of the metal, thereby preventing rusting.

Titanium dioxide (TiO 2 ) is a white pigment because it is very stable physicochemically and has high hiding power. And is also widely used for ceramics having high refractive index because of high refractive index. And has characteristics of photocatalytic property and superhydrophilic property. Titanium dioxide (TiO 2 ) acts as an air purification function, an antibacterial function, a harmful substance decomposition function, a pollution prevention function, and a discoloration prevention function. The titanium dioxide (TiO 2 ) ensures that the anti-oxidation coating layer is coated on the outer circumferential surface of the binding member 20, and the foreign substance adhering to the anti-oxidation coating layer is decomposed and removed to prevent the anti-oxidation coating layer from being damaged.

Here, chromium oxide (Cr 2 O 3) and when using hayeoseo mixing titanium dioxide (TiO 2), the mixing ratio of these, chrome oxide (Cr 2 O 3) Titanium dioxide (TiO 2) in 96-98% by weight 2 By weight to 4% by weight.

When the mixing ratio of chromium oxide (Cr 2 O 3 ) is less than 96 to 98%, the coating of chromium oxide (Cr 2 O 3 ) is often broken in an environment such as high temperature, ) Of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the inner circumferential surface of the outer circumferential surface of the outer circumferential surface

When the mixing ratio of titanium dioxide (TiO 2 ) is less than 2 to 4 wt%, the effect of titanium dioxide (TiO 2 ) is insignificant so that the purpose of mixing it with chromium oxide (Cr 2 O 3 ) is discolored. That is, titanium dioxide (TiO 2 ) is used to dissolve and remove foreign matter adhered to the outer peripheral surface of the binding member 20 to prevent the outer peripheral surface of the binding member 20 from being corroded or damaged. %, There is a problem that it takes much time to decompose the attached foreign matter.

The coating layer made of these materials is plasma-coated to have a thickness of 50 to 600 mu m around the outer peripheral surface of the binding member 20, a hardness of 900 to 1000 HV, and a surface roughness of 0.1 to 0.3 mu m.

The antioxidant coating layer is sprayed with 50 to 600 占 퐉 by jetting the powdered powder and the gas at 1400 占 폚 around the outer circumferential surface of the binding member 20 at a Mach 2 speed.

When the thickness of the antioxidant coating layer is less than 50 탆, the effect of the above-mentioned ceramic coating layer can not be guaranteed. When the thickness of the antioxidant coating layer exceeds 600 탆, the increase of the above-mentioned effect is insignificant, There is a problem that working time and material cost are wasted.

The temperature of the outer circumferential surface of the binding member 20 is raised while the oxidation preventing coating layer is coated on the outer circumferential surface of the binding member 20 so that the outer circumferential surface of the binding member 20 Cooled by a cooling device (not shown) to maintain a temperature of 150 to 200 ° C.

A sealing material made of anhydrous chromic acid (CrO 3 ) made of a metal-based glass quartz system may further be applied to the periphery of the anti-oxidation coating layer. Anhydrous chromic acid is applied as an inorganic sealing material around a coating layer made of chromium nickel powder.

Anhydrous chromic acid (CrO 3 ) is used in places that require high abrasion resistance, lubricity, heat resistance, corrosion resistance and releasability, is not discolored in the atmosphere, has high durability, and has good abrasion resistance and corrosion resistance. The coating thickness of the sealing material is preferably about 0.3 to 0.5 mu m. If the coating thickness of the sealing material is less than 0.3 占 퐉, the sealing material easily peels off even in a slight scratch groove, so that the above-mentioned effect can not be obtained. If the coating thickness of the sealing material is made thick enough to exceed 0.5 탆, pin holes, cracks, and the like will increase on the plated surface. Therefore, the coating thickness of the sealing material is preferably about 0.3 to 0.5 mu m.

Therefore, since the coating layer having excellent abrasion resistance and oxidation resistance is formed around the outer circumferential surface of the binding member 20, the outer circumferential surface of the binding member 20 is prevented from being worn or oxidized, thereby prolonging the service life of the product.

Further, the guardrail support 10 may be made of a ductile iron. This dough tile cast iron is heated to 1600 ~ 1650 캜 to be molten, then subjected to desulfurization treatment, spherodizing treatment agent containing 0.3 ~ 0.7% by weight of magnesium, spheronized at 1500 ~ 1550 캜, and heat treated.

Dough tile cast iron is a cast iron in which graphite is spherically crystallized during the solidification process by adding magnesium and the like to the molten metal of the common gray cast iron, so the shape of the graphite is spherical compared to gray cast iron. Since the ductile cast iron has a less notch effect, the stress concentration phenomenon is reduced and the strength and toughness are greatly improved.

The guard rail support 10 of the present invention is formed by heating a cast iron of a dirt tile at 1600 to 1650 캜 to make a molten metal, subjecting it to desulfurization, adding a spheroidizing agent containing magnesium in an amount of 0.3 to 0.7% Followed by heat treatment.

Here, when the cast iron of the duck tile is heated to less than 1600 ° C, the entire structure is not sufficiently melted. If the cast iron is heated above 1650 ° C, unnecessary energy is wasted. Therefore, it is desirable to heat the dirt tile cast iron to 1600 ~ 1650 ℃.

If the amount of magnesium is less than 0.3% by weight, the effect of injecting the spheroidizing agent is negligible. If the amount of magnesium is more than 0.7% by weight, the effect of injecting spheroidizing agent There is a problem in that an expensive material cost is increased. Therefore, the mixing ratio of magnesium in the spheroidizing agent is preferably about 0.3 to 0.7% by weight.

When the spheroidizing treatment agent is injected into the molten dull tile cast iron, it is subjected to spheroidizing treatment at 1500~1550 ° C. If the spheroidizing treatment temperature is lower than 1500 ° C., the spheroidizing treatment is not properly performed. If the spheroidizing treatment temperature is higher than 1550 ° C., the spheroidizing treatment effect is not greatly improved, but unnecessary energy is wasted. Therefore, the spheroidization treatment temperature is preferably 1500 to 1550 ° C.

Since the guard rail support 10 of the present invention is made of the duck tile cast iron, the stress concentration phenomenon is reduced because the notch effect is small, and the strength and toughness are greatly improved.

The guardrail support 10 may be coated with a polypropylene resin composition having excellent impact resistance against external impact or external environment. The polypropylene resin composition comprises a polypropylene random block copolymer composed of 75 to 95% by weight of an ethylene-propylene-alphaolefin random copolymer and 5 to 25% by weight of an ethylene-propylene block copolymer having an ethylene content of 20 to 50% by weight .

The polypropylene random block copolymer is preferably 75 to 95% by weight of the ethylene-propylene-alphaolefin random copolymer and 5 to 25% by weight of the ethylene-propylene block copolymer. The ethylene- When the content of the ethylene-propylene block copolymer is less than 5% by weight, the impact resistance is deteriorated. When the content of the ethylene-propylene block copolymer is more than 25% by weight, the rigidity is deteriorated do.

Wherein the ethylene-propylene-alpha olefin random copolymer comprises 0.5 to 7% by weight of ethylene and 1 to 15% by weight of an alpha-olefin having 4 to 5 carbon atoms and improves mechanical stiffness and heat resistance of the polypropylene resin composition, As shown in Fig. The ethylene content is preferably from 0.5 to 5% by weight, more preferably from 1 to 3% by weight. When the content of ethylene is less than 0.5% by weight, the whitening resistance is deteriorated. When the content is more than 7% by weight, .

Further, the alpha olefin means any alpha olefin except ethylene and propylene, and is preferably butene. When the number of carbon atoms is less than 4 or more than 5, the reactivity of the alpha-olefin with the comonomer is low during the production of the random copolymer, making it difficult to produce the copolymer. Further, it may contain 1 to 15% by weight, preferably 1 to 10% by weight, and more preferably 3 to 9% by weight of the above-mentioned alpha olefin. If the amount of the alpha-olefin is less than 1% by weight, the crystallinity becomes higher than necessary and the transparency is lowered. When the amount of the alpha-olefin is more than 15% by weight, the crystallinity and rigidity are lowered and the heat resistance is significantly lowered.

In addition, the ethylene-propylene block copolymer contains 20 to 50% by weight of ethylene and imparts impact resistance to the polypropylene resin composition and enables finely dispersing, thereby imparting both whitening resistance and transparency. The ethylene content may preferably be 20 to 40% by weight, and if it is less than 20% by weight, the impact resistance is deteriorated. If it exceeds 50% by weight, the impact resistance and whitening resistance may be deteriorated.

The road guard rail according to the present invention is excellent in impact resistance against external impact or external environment because the polypropylene resin composition is coated around the guard rail support 10, thereby prolonging the life of the product.

10: guard rail support member 11: outer protrusion reinforcing member
12: Inner depression strengthening part 13: Elastic reinforcing part
14: opening 15: tightening reinforcing end
20: binding member 21: first clip portion
22: first support plate 23: first through hole
24: first clip plate 24a: first fastening portion
24b: first fastening end portion 25: second clip portion
26: second support plate 27: second through hole
28: second clip plate 28a: second fastening portion
28b: second fastening end portion 30: fastening member
31: fastening bolt 32: bolt head
33: fastening jaw 34: male thread portion
35: fastening nut 36: washer

Claims (5)

A guardrail support (not shown) provided on both sides of the road or on both sides of the road and vertically and horizontally arranged at equal intervals along the road to form a guard rail and being formed as a hollow, 10);
A binding member 20 installed at an intersection of the vertically and horizontally arranged guard rail supports 10 and fixing the two guard rail supports 10 that intersect with each other;
And a fastening member (30) fastened to the guard rail support (10) and the binding member (20) to fix them;
The guardrail support (10)
An outer projecting reinforcing portion 11 bent at a central portion of the corresponding two surfaces so as to protrude outward along the longitudinal direction of the guard rail supporting rods 10 to reinforce the guard rail supporting rods 10, An inner dent reinforcing portion 12 bent on the both sides so as to protrude inward along the longitudinal direction of the guard rail dent 10 so as to reinforce the guard rail supporter 10 and an outer dent reinforcing portion 11 and an inner dent reinforcing portion An elastic reinforcing portion 13 connected to one side of the two surfaces of the guard rail support 10 and bent inwardly in a concave shape along the longitudinal direction of the guard rail support 10 to absorb and counteract external impacts, An opening 14 formed in the corresponding surface of the surface on which the opening 13 is formed and elongated along the longitudinal direction at the center so as to change the fastening position of the fastening member 30, So that the fastening member 30 is supported One drain support (10) is made of a reinforced fastening end 15 to prevent the bending in the lateral direction;
The binding member (20)
A first support plate 22 supported on one surface of a guard rail support 10 on which the opening 14 is formed, a first through hole 23 formed on both sides of the first support plate 22, A first clip portion 21 formed of a first clip plate 24 which is bent at both sides of both ends of the guard rail supporter 10 and is in close contact with the outer projecting reinforcement portion 11 of the guard rail supporter 10; A second support plate 26 supported on one surface of another guardrail support 10 orthogonal to the guardrail support 10, a second through hole 27 formed on both sides of the second support plate 26, And a second clip portion 25 formed of a second clip plate 28 which is bent at both sides of both ends of the support plate 26 and tightly attached to the outer projected reinforcing portion 11 of the guard rail support 10;
The fastening member (30)
The bolt head 32 is supported by the guard rail support 10 and the male screw portion 34 is fastened to the male screw portion 34 of the fastening bolt 31 and the fastening bolt 31 through which the fastening member 20 passes, A fastening nut 35 for fastening the guard rail supporter 10 and the fastening member 20 and a male screw portion 34 between the fastening nut 35 and the fastening member 20 and fastening the fastening nut 35 And a washer (36) which is in close contact with the binding member (20) and closely contacts the binding member (20) to the guard rail support base (10); A fastening bolt 33 is formed on the bolt head 32 of the fastening bolt 31 so that the fastening bolt 31 is engaged with the fastening end 15 of the guard rail support 10 when fastened to the fastening bolt 31 ;
The first clip portion 24 of the first clip portion 21 is provided with a first clip portion 21 and a second clip portion 22 so as to be inserted into the two inner dent reinforcing portions 12 when the first clip portion 21 is inserted into the guard rail support 10, And the second clip portion 28 of the second clip portion 25 is provided with a second clip portion 25 which is to be inserted into the guard rail supporter 10 A second fastening portion 28a and a second fastening end 28b are formed so as to be respectively inserted into the internal recess reinforcing portions 12 of the two rows;
The oxidation preventing coating layer is coated on the binding member 20 and the antioxidant coating layer is composed of a mixture of 96 to 98% by weight of chromium oxide (Cr 2 O 3 ) and 2 to 4% by weight of titanium dioxide (TiO 2 ) Coated on the binding member 20 to have a thickness of 50 to 600 占 퐉 and having a hardness of 900 to 1000 HV. Around the antioxidant coating layer, anhydrous chromic acid (CrO 3 ) is further applied, and the coating thickness of the sealing material is 0.3 to 0.5 mu m;
The guardrail support 10 is made of a ductile cast iron, the ductile iron casting is heated to 1600 to 1650 DEG C to be molten, then subjected to a desulfurization treatment, and a spheroidizing agent containing 0.3 to 0.7 wt% ≪ / RTI > to < RTI ID = 0.0 > 1550 C < / RTI >
The guardrail support 10 is coated with a polypropylene resin composition, wherein the polypropylene resin composition comprises 75 to 95% by weight of an ethylene-propylene-alphaolefin random copolymer and 20 to 50% by weight of ethylene- And 5 to 25% by weight of a polypropylene random block copolymer. delete delete delete delete
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KR102081535B1 (en) * 2019-07-30 2020-02-25 한전케이피에스 주식회사 Target fixing apparatus for transmission tower displacement measurement and target fixing method using the same
KR102102380B1 (en) * 2019-04-30 2020-04-21 이재훈 Structure for connecting guard rail and post

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CN110396962B (en) * 2019-08-27 2024-05-10 鲍吉山 Automatic force-unloading protective guard for roads and bridges
KR102091212B1 (en) * 2019-12-24 2020-03-19 에스에이 주식회사 Noise barrier with basic structure using pile and construction method thereof
KR102215731B1 (en) 2020-04-20 2021-02-16 주식회사 티엘이 Supporting apparatus of road guide rail
CN113512972B (en) * 2021-04-20 2022-05-24 中交第三公路工程局有限公司 Waveform beam guardrail and reinforcing method

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KR200167927Y1 (en) * 1999-08-13 2000-02-15 구마산업주식회사 Control construction for level of guardrail
KR200429903Y1 (en) * 2006-07-31 2006-10-30 이종현 A combination structure of guardrail pipe
KR100954965B1 (en) * 2009-02-05 2010-04-23 주식회사 세원리테크 Clamp for a mesh fence

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KR200167927Y1 (en) * 1999-08-13 2000-02-15 구마산업주식회사 Control construction for level of guardrail
KR200429903Y1 (en) * 2006-07-31 2006-10-30 이종현 A combination structure of guardrail pipe
KR100954965B1 (en) * 2009-02-05 2010-04-23 주식회사 세원리테크 Clamp for a mesh fence

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Publication number Priority date Publication date Assignee Title
KR102102380B1 (en) * 2019-04-30 2020-04-21 이재훈 Structure for connecting guard rail and post
KR102081535B1 (en) * 2019-07-30 2020-02-25 한전케이피에스 주식회사 Target fixing apparatus for transmission tower displacement measurement and target fixing method using the same

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