KR100754901B1 - Construction and dismantle method of guardrail - Google Patents

Abstract

A method for installing and dismantling a guardrail is provided to install or separate a rail plate and a bracket to or from a post easily. A method for installing a guardrail comprises the steps of: adhering a semicircular holder(200) of a bracket(BK) closely to the outer circumferential surface of a post(1); fixing the holder to the post integrally by penetrating long bolts(LB) through horizontal long grooves(240) formed on the holder; adhering the inside of a rail plate(100) having trapezoidal projections(110,130) closely to contact wings(290) of the holder by bolts(B); and pressurizing the outside of the rail plate and fixing the rail plate to the holder of the bracket. The method for dismantling a guardrail comprises the steps of: separating the rail plate from the holder of the bracket by removing the bolts fastened to the contact wings; removing the rail plate from the holder; removing the bracket from the post by removing the long bolts penetrated the holder.

Description

How to Install and Remove Guard Rails {CONSTRUCTION AND DISMANTLE METHOD OF GUARDRAIL}

1 is a perspective view showing a guard rail according to the prior art;

2 is an exploded perspective view of a rail plate and a bracket installed by a method of installing a guard rail according to an embodiment of the present invention;

3 is a perspective view of the bracket shown in FIG. 2;

4 is a block diagram showing a method for installing a guard rail according to an embodiment of the present invention; And

5 is a block diagram showing a method of disassembling the guard rail according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

1: prop

100: rail plate

110: upper protrusion

114: vertical plane

116: lower slope

120: middle part

130: lower protrusion

132: upper slope

134: vertical plane

200: holder

214: upper vertical side

216: upper slope

220: middle side

232: lower slope

234: lower vertical side

240: horizontal long hole

250: inclined incision

290: close wing

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing and dismantling a guard rail installed on a road to prevent derailment of a vehicle, and more particularly, to a method of installing and dismantling a guard rail that can be more firmly installed or dismantled on a support plate. .

In general, the guardrail is installed at the shoulders of the center or both sides of the road along the road so as to prevent the vehicle from being derailed from the road and collide with the vehicle that is separated from the road.

In addition, the guardrail is mainly installed on a mountain road or a winding road so that the vehicle does not fall out of the road, and is installed at the boundary between the sidewalk and the roadway to protect pedestrians in the city.

Such a guardrail is well illustrated in the accompanying FIG. 1, and the attached FIG. 1 illustrates a guardrail disclosed in the prior art in Korean Patent Registration No. 632956 (September 29, 2006). In the guardrail, the shielding plate 10 is mounted on the side of the support post 1 provided at equal intervals along the road so that the vehicle traveling on the road is not separated.

That is, the shield plate 10 supported by the support 1 prevents the vehicle from derailing on the road while colliding with the vehicle that is separated from the road.

Such a shield plate 10 is bent in a zigzag form as shown in the drawing to enlarge the rigidity along the longitudinal direction is made of the 'W' shaped cross-section of the alphabet.

In addition, the shielding plate 10 is enlarged to be detachably integrally fixed to the support 1, as shown in the recessed recessed portion 16 recessed in the middle of the support by bolting the bolt (3) It is fixed in close contact with (1).

That is, the bolt 3 is fastened to the support 1 through the recess 16 of the shielding plate 10.

However, the guardrail according to the related art as described above, the upper and lower portions 12 and 14 of the shielding plate 10 which is primarily collided with the vehicle protrude in a triangular shape, as shown in the enlarged illustration of the shielding plate 10. There is a problem that the upper part 12 and the lower part 14 of the wedge become lodged in a crashing vehicle and in fact do not significantly alleviate the impact.

That is, the guardrail according to the related art does not properly deform (unfold) the shock of the vehicle because it is deformed while the upper part 12 and the lower part 14 of the shielding plate 10 are stuck in the vehicle and deforms properly. There is no problem.

In addition, since the shielding plate 10 is fixed to the support 1 closely, there is also a problem that the support 1 is pushed and collapsed by the shielding plate 10 colliding with the vehicle.

That is, since the support 1 is collapsed by the impact of the vehicle, there is a problem that the derailment of the vehicle cannot be prevented.

In addition, since the rail plate 10 maintains the state fixed to the support 1 by the bolts 3, there is a problem that the rail plate 10 is separated from the support 1 when the vehicle collides with the impact.

That is, the rail plate 10 is separated from the support 1 together with the bolt 3 because the bolt 3 is separated from the support 1 by the impact of the vehicle.

In addition, there is also a problem that the installation and disassembly is very difficult because the other one must fasten or separate the bolt (3) in the state in which the rail plate 10 is lifted by one person.

In addition, when the rail plate 10 is separated from the support 1, the rail plate 10 falls from the support 1, so there is a problem that a safety accident may occur.

The present invention has been made to solve the conventional problems as described above, rail plate consisting of the upper and lower protrusions of the trapezoidal shape protruding on the upper and lower, and the vertically formed intermediate portion connecting the upper and lower projections; An open side end portion corresponding to the rail plate is provided, and a bracket comprising a semi-circular holder having an inclined incision hole formed in the lower side of the open side end portion, and a close wing bent at the open side end portion of the holder; The purpose is to provide a method of installing and dismantling the guard rail that can be installed or dismantled from the shore.

In addition, another object of the present invention is to provide an installation method of a guard rail that can be installed while adjusting the installation height of a plurality of rail plates connected to each other.

In addition, another object of the present invention is to provide a method for installing and dismantling a guard rail that can be held on a bracket by an external pressing force while a rail plate separated from the bracket is installed or dismantled.

Guard rail installation method according to the present invention for achieving the above object, the upper and lower protrusions formed in the trapezoidal shape protruding on the upper and lower, and a rail plate consisting of a vertically formed intermediate portion connecting the upper and lower projections; A bracket having an open side end portion corresponding to the rail plate, a semi-circular holder having an inclined incision hole formed in the lower side of the open side end portion, and a close wing bent at the open side end portion of the holder; A method for installing a guard rail to be installed, comprising: a bracket arrangement step of closely fitting the open side end of the holder to the outside of the support such that the bracket is disposed on the support in a state in which the holder is wrapped in the support; A bracket fixing step of fastening the long bolt through the horizontal long hole formed on the side of the holder so that the holder in close contact with the support is fastened to the support; Vertical and lower inclined surfaces, the intermediate portion and the bottom surface of the rail plate are in close contact with the rail plate to the open side end of the holder such that the rail plate is disposed on the holder of the bracket fixed to the support. A rail for closely contacting the inner surface of the rail plate to the contact blades of the holder while matching the upper inclined surface and the vertical surface of the lower protrusion to the upper vertical side, the upper inclined side, the vertical middle side, the lower inclined side and the lower vertical side of the holder. Plate placement step; The lower inclined surface constituting the protruding portion of the rail plate while pressing the outer surface of the rail plate so that the rail plate is fixed to the holder of the bracket while preventing the rail plate disposed on the holder from falling; And a rail plate fixing step of fastening the bolt to a close contact with the bolt through the bolt hole formed on the upper sloped surface of the middle portion and the lower protrusion.

In addition, the method of disassembling the guardrail according to the present invention, the upper and lower protrusions of the trapezoidal shape formed on the upper and lower portions, and a rail plate consisting of a vertically formed intermediate portion connecting the upper and lower projections; An open side end portion corresponding to the rail plate is provided to be in close contact with the rail plate, and is formed in a semi-circular holder having an inclined incision formed in the side lower portion of the open side end portion, and bent in an open side end portion of the holder. In the dismantling method of the guard rail for dismantling the bracket made of a close contact with the bolt fixed in close contact with the rail plate, in the dismantling method of the rail plate to prevent the fall of the rail plate while the rail plate is separated from the bracket A rail plate for removing bolts from the rail plate, which are fastened to the contact blades of the holder constituting the bracket by penetrating through the bolt holes of the lower inclined surface and the intermediate portion and the upper inclined surface of the lower protrusion. Separation step; A rail plate removing step of removing the rail plate from the holder so that the bolt is removed and the rail plate separated from the holder is removed from the holder; A bracket removal step of removing the bracket from the support by removing the long bolt fastened to the support through the holder such that the holder having the rail plate removed is separated from the support to remove the bracket from the support. Include.

The present invention as described above, the rail plate and bracket to install or dismantle the rail plate and bracket by the installation step or disassembly step considering the structural characteristics of the newly designed rail plate and bracket to easily install the newly designed rail plate and bracket to the support Can be dismantled.

Hereinafter, with reference to the accompanying drawings illustrating the installation and disassembly method of the guardrail according to the present invention as follows, the accompanying Figure 2 is a rail plate installed by the installation method of the guardrail according to an embodiment of the present invention. And an exploded perspective view of the bracket, and FIG. 3 is a perspective view of the bracket shown in FIG. 2.

Referring to Figure 2, the installation method of the guardrail according to an embodiment of the present invention as shown in the upper and lower protrusions of the trapezoidal shape protruding on the upper and lower to absorb the impact while the surface contact with the collision vehicle, 110, 130 ) And a rail plate 100 formed of a vertically formed intermediate portion 120 connecting the upper and lower protrusions 110 and 130 to the support 1 through a bracket BK described later.

As described above, the upper and lower protrusions 110 and 130 of the rail plate 100 coupled to the support 1 have an upper inclined surface having an upward inclination in a diagonal direction as shown in such a manner that the vehicle collides with the center at the surface contact. (112, 132), the vertical surface (114, 134) formed vertically on the upper inclined surface (112, 132) and the surface contact with the collision vehicle, and the lower portion having a downward slope in the diagonal direction in the vertical surface (114, 134) Inclined surfaces 116 and 136.

In addition, the middle portion 120 of the rail plate 100 is the lower inclined surface 116 and the upper projection 110 of the upper projection 110, as shown so that the upper and lower projections 110, 130 are integrally connected It is integrally connected to the upper inclined surface 136 of the lower protrusion 130.

The rail plate 100 is bent by a press mold (not shown) so that the upper and lower protrusions 110 and 130 and the intermediate part 120 are integrally formed.

That is, the upper and lower protrusions 110 and 130 and the middle portion 120 are formed by bending.

In addition, the rail plate 100 has a bolt hole (BH) is formed in the front end and the rear end and the middle portion as shown to be fixed to the bracket (BK) by the bolt (B).

That is, the rail plate 100 is fixed to the front end and the rear end and the middle portion to the bracket (BK).

The bolt hole (BH) is such that the head of the bolt (B) does not protrude to the outside of the vertical surface (114, 134) formed in the upper and lower protrusions (110, 130) of the rail plate (100). As shown, only the upper slopes 112 and 132, the lower slopes 114 and 134, and the intermediate portion 120 of the upper and lower protrusions 110 and 130 are formed.

In addition, the bolt hole (BH) formed at the front end and the rear end of the rail plate 100, so that when the front end of another rail plate 100 overlaps the rear end of the rail plate 100 so as to cross each other overlapping each other. As shown, the front end of the rail plate 100 is formed in the transverse direction, the rear end of the rail plate 100 is formed in the longitudinal direction.

That is, the rail plate 100 is composed of a plurality of the rear end and the front end is connected to each other, the bolt hole (BH) formed at the front end and the rear end of the rail plate 100, respectively, to the rail plate 100 When the rail plate 100 is overlapped with each other, the enlarged view also crosses each other in a cross shape while overlapping each other as shown in "A".

On the other hand, the bolt (B) through the bolt hole (BH), as shown in the enlarged view "A" in the drawing so that the rail plate 100 overlapping the front end and the rear end are integrated into the bracket ( BK) or is coupled to the nut (N).

That is, the rail plates 100, the portions of which overlap each other, are fixed in an overlapping state by the bolts B. FIG.

On the other hand, the other rail plate 100 is fixed to the rear end of the rail plate 100 by the bolt (B), as shown in the enlarged view "A" so that the installation height is adjusted according to the curvature of the road It can flow by the bolt hole (BH) intersecting in the shape of a child.

That is, the another rail plate 100 forms a cross shape while overlapping the bolt hole BH through which the bolt B penetrates, so that the portion overlapped by the bending of the road is the rear end of the rail plate 100. If it does not exactly match and slightly shifts, the installation height can be adjusted while flowing in the transverse or longitudinal direction about the bolt (B).

On the other hand, the bolt (B) should be slightly loosened so that the another rail plate 100 flows, and should be firmly tightened again when the flow is completed.

That is, the another rail plate 100 may flow only when the bolt B is slightly loosened.

On the other hand, the bracket (BK) is fitted to the support (1) is provided with an open side end corresponding to the rail plate 100 as shown to engage with the rail plate 100 is provided through the side end A semi-circular holder (200) fitted to (1), the inclined incision hole 250 is formed in the lower side of the open side end portion, the horizontal hole 240 through which the long bolt (LB) penetrates the side; It is formed to be bent in the open side end portion of the holder 200 is in close contact with the rail plate 100 by the bolt (B) in close contact 290; consists of.

That is, the bracket BK is fixed to the support 1 by the long bolt LB while the holder 200 surrounds the support 1 and the support 1 is in contact with the inner circumferential surface thereof. And, the close wing 290 is in close contact with the rail plate 100 is integrally coupled to the rail plate 100 by the bolt (B).

Referring to FIG. 3, the holder 200 of the bracket BK corresponds to the rail plate 100 including the upper and lower protrusions 110 and 130 and the intermediate part 120 having open side ends. As shown, the upper vertical side 214, the upper inclined side 216, the vertical middle side 220, the lower inclined side 232 and the lower vertical side 234 are sequentially from the top to the bottom of the open side end portion. Is formed.

The holder 200 is such that the upper vertical side 214 and the upper inclined side 216 as shown in the enlarged view "C" in the drawing so that the rail plate 100 is matched to the open side end. ) Is in close contact with the vertical surface 114 and the lower inclined surface 116 of the upper protrusion 110 formed on the rail plate 100, the vertical intermediate side 220 is the middle of the rail plate 100 The upper inclined surface 132 and the vertical surface 134 of the lower protruding portion 110 formed in the rail plate 100 are in close contact with the portion 120, and the lower inclined side 232 and the lower vertical side 234 are formed on the rail plate 100. Close to)

Thus, the holder 200 in close contact with the rail plate 100, the side end portion of the open side as shown to absorb the shock applied to the lower inclined side 232 and the lower vertical side 234 The inclined incision hole 250 is formed in the lower light negotiation.

That is, the holder 200 may absorb the impact by the inclined incision 250.

The holder 200 as shown in the enlarged view "D" of the drawing so that the shock applied to the rail plate 100 by the collision vehicle, the lower slope side 232 and the lower vertical side ( 234 is plastically deformed around the inclined cut hole 250.

That is, the holder 200 is deformed while the open lower end is crushed by the impact.

On the other hand, the close wing 290 of the bracket (BK) as shown to be fixed to the rail plate 100 in an open side end portion of the holder 200 in close contact with the rail plate 100 It extends from the open side end of the holder 200.

The close wing 290 as described above is composed of a plurality of the upper vertical side 214 and the upper inclined side 216 of the holder 200 as shown to be spaced apart on the side of the holder 200. ) And the vertical intermediate side 220 and the lower inclined side 232 and the lower vertical side 236, respectively, are bent at right angles to enlarge the inner side of the rail plate 100 as shown in " C " It adheres to the side.

That is, the close wing 290 is in close contact with the inner surface of the rail plate 100 to support the inner surface of the rail plate 100.

In addition, the upper wing portion 290 constituting the rail plate 100 by the bolt (B) as shown in the enlarged view "C" to be fixed to the inner surface of the rail plate 100, the contact blade 290. Bolting is fixed to the lower inclined surface 116 of 110 and the upper inclined surface 132 of the intermediate portion 120 and the lower protrusion 130.

That is, the rail plate 100 protects the vehicle from the side of the support (1) in a state that is fixed to the bracket (BK) as the bolt (B) is fastened to the close wing (290).

The rail plate 100 and the bracket 200 configured as described above will be described with reference to FIGS. 2 to 5 with reference to the attached and disassembled method of the post 1 according to an embodiment of the present invention. 4 is a block diagram illustrating a method of installing a guard rail according to an embodiment of the present invention, and FIG. 5 is a block diagram illustrating a method of disassembling the guard rail according to an embodiment of the present invention. 4 and 5 will be described with reference numerals in parentheses in the description of FIGS. 2 and 3 in order to avoid overlapping description.

Referring to Figure 2, the guardrail installation method according to an embodiment of the present invention as shown in the holder (1) of the holder 200 to the outside of the support (1) so that the bracket (BK) is disposed on the support (1) Inserting the open side end portion is in close contact with the holder 200 in a state of wrapping (S1 / bracket arrangement step of Figure 4).

That is, the holder 200 of the bracket (BK) is the inner peripheral surface is in close contact with the outer peripheral surface of the support (1).

As such, when the holder 200 is in close contact with the support 1, the holder 200 in close contact with the support 1 is fixed to the support 1, and thus the side of the holder 200 is fixed. The long bolt (LB) through the horizontal hole 240 formed in the fastening to the support (1). (S2 / bracket fixing step of Figure 4)

That is, the bracket BK is integrally fixed to the support 1 as the holder 200 is fixed to the support 1 by the long bolt LB.

In addition, when the bracket (BK) is fixed to the support (1), as shown in the rail plate 100 is disposed on the holder 200 of the bracket (BK) fixed to the support (1) The rail plate 100 is brought into close contact with the open side end of the holder 200, and the inner surface of the rail plate 100 is brought into close contact with the contact blade 290 of the holder 200. S3 / Rail Plate Placement Step)

That is, the upper vertical side 214, the upper inclined side 216, the vertical middle side 220, the lower inclined side 232 and the lower vertical side 234 of the holder 200, an enlarged view of FIG. As shown in "C", the vertical surface 114 and the lower inclined surface 116 constituting the upper protrusion 110 of the rail plate 100 and the upper portion of the intermediate portion 120 and the lower protrusion 130. It is mated with the inclined surface 132 and the vertical surface 134.

In addition, when the rail plate 100 is in close contact with the close wing 290, the rail plate 100 prevents the rail plate 100 disposed on the holder 200 from falling down, and thus the rail plate 100 is attached to the bracket BK. The lower inclined surface 116 constituting the protruding portion 110 of the rail plate 100 as shown in a state in which the outer surface of the rail plate 100 is pressed to be fixed to the holder 200. And through the bolt hole (BH) formed in the upper inclined surface 132 of the intermediate portion 120 and the lower protrusion 130 is fastened to the close wing 290 (Fig. 4). S4 / Rail plate fixing step)

That is, the rail plate 100 and the bracket BK are integrally formed by the close wing 290 and the rail plate 100 coupled to each other by the bolt B.

As described above, when the bolt B is fastened to the contact blade 290, a part of the rail plate 100 is preferentially fixed to the holder 200 so that a worker may move the middle portion in the longitudinal direction of the rail plate 100. Presses using one hand or leg and passes the bolt B through the bolt hole BH formed in the middle portion of the rail plate 100 as shown in the middle portion of the rail plate 100. It is preferable to fix the intermediate part of the rail plate 100 to the holder 200 of the bracket BK by first fastening the contact blade 290 of the holder 200 located. S4-1 / Middle part fixing step)

That is, the rail plate 100 is pressurized by the operator so that the bolt (B) does not fall from the holder 200 before the bolt (B) is fastened, and the bolt (B) is fastened to an intermediate portion of the rail plate (100). After the fall, it does not fall from the holder 200 due to the fastening force of the bolt (B).

In addition, when the middle portion of the rail plate 100 is bolted by the bolt (B), as shown in the front end portion of the rail plate 100 to be fixed to the holder 200 of the rail plate 100 The bolt hole (BH) formed in the front end to penetrate the bolt (B) to the close contact with the blade 290 of the holder 200 located in the front end of the rail plate 100 of the rail plate 100 It is preferable to fix the tip portion to the holder 200 of the bracket (BK). (S4-2 / tip fixing step of Figure 4)

That is, the rail plate 100 is fixed to the holder 200 by the front end portion by the bolt (B) after the middle portion is fixed.

In addition, when the front end of the rail plate 100 is bolted by the bolt (B), the rear end of the rail plate 100 as shown so as to be fixed to the holder 200 after the rail plate 100 The bolt plate (BH) formed at the end to pass through the bolt (B) is fastened to the contact blade 290 of the holder 200 located in the rear end of the rail plate 100 by the rail plate 100 It is preferable to fix the rear end of the bracket 200 to the holder 200 of the bracket BK (S4-3 / back end fixing step of FIG. 4).

On the other hand, if the rail plate 100 is completely fixed to the bracket (BK) in the same manner as described above, another rail plate 100 formed in the same manner as the rail plate 100 is the rail plate 100 As shown to be connected to the rear end of the rail plate 100, the front end of another rail plate 100 is superimposed (S5 / rail plate overlapping step of Figure 4).

That is, the rail plate 100 partially overlaps with the other rail plate 100.

As described above, when a part (rear end and front end) of the rail plates 100 overlap, the enlarged view in the drawing so that the rear end and the front end portions of the rail plates 100 overlap only as much as a predetermined portion, as shown in "A". On the upper and lower protrusions 110 and 130 of the front end of the rail plate 100 in the bolt hole (BH) formed laterally in the upper and lower protrusions 110 and 130 of the rear end of the rail plate 100 The bolt holes BH formed in the longitudinal direction are positioned to overlap the bolt holes BH in the lateral direction and the longitudinal direction in a cross shape.

That is, the rail plates 100 overlap only as much as a portion set as the bolt holes BH in the transverse direction and the longitudinal direction overlap.

In addition, when the rail plate 100 is overlapped only by the set portion, the bolt hole (BH) as shown in the enlarged view "C" so that the rail plate 100 is integrally coupled to the bolt hole ( Bolting the overlapped portion by passing through the bolt (BH) (S7 / combined overlapping step of Figure 4).

That is, the rail plate 100 is continuous while the overlapping portion is integrally coupled by the bolt (B).

On the other hand, when the overlapping portion of the rail plate 100 with the bolt (B) is coupled to the other rail plate 100 overlapping the rear end of the rail plate 100 is coupled to the rail plate 100 It is preferable to loosen the bolt (B) so that the installation height is adjusted according to the curvature of the road. (S7-1 / temporary coupling step of Figure 4)

That is, the other end of the rail plate 100 is coupled to the rear end of the rail plate 100, the bolt hole (BH) crosses in the cross shape as the cross-section of the road as the cross-section of the road, the longitudinal direction or longitudinal The installation height is adjusted while moving slightly in the direction.

As such, when the installation height of the other rail plate 100 is adjusted, the bolt B is completely bolted so that the overlapping rail plate 100 is firmly coupled. (S7-2 / coupling of FIG. 4) Completion step)

That is, the rail plate 100 is firmly fixed in an overlapping state as the bolt (B) is completely bolted.

Referring to FIG. 3, the rail plate 100 is fixed to the bracket BK as shown in an enlarged view "C" in the drawing so as to protect the vehicle from the side of the support 1. Shield the side of the.

That is, the rail plate 100 is fixed to the bracket BK by the bolt B, and thus is integrally connected to the support 1 through the bracket BK.

On the other hand, the holder 200 of the bracket (BK) is enlarged so that when the vehicle collides with the rail plate 100, the rail plate 100 moves in the direction of the support (1) while the shock is alleviated "D As shown in the lower portion is crushed around the inclined incision hole 250.

That is, the bracket (BK) is possible to be changed as the inclined incision hole 250 is formed on the side.

By the above method, the rail plate 100 and the holder 200 are installed on the support 10.

On the other hand, in order to dismantle the rail plate 100 and the bracket (BK) fixed to the support (1) in the same manner as described above (disassembled in the reverse order of the installation method).

Referring to FIG. 2, the rail plate 100 is separated from the rail plate 100 in a state in which the rail plate 100 is separated from the bracket BK while being prevented from falling by the worker. After pressurizing to the lower inclined surface 116 constituting the protrusion 110 of the rail plate 100, the middle portion 120 and the upper inclined surface 132 of the lower protrusion 130 as shown The bolt (B) fastened to the contact blade 290 of the holder 200 constituting the bracket (BK) through the bolt hole (BH) of the) is removed from the rail plate (100). 5, S11 / Rail plate removal step)

That is, the rail plate 100 fixed to the bracket (BK) is separated from the holder 200 of the bracket (BK) as the bolt (B) is removed, but fall off from the holder (200) It doesn't.

As such, when the rail plate 100 is separated from the bracket BK, the front end of the rail plate 100 is preferentially separated from the holder 200, so that the fall of the rail plate 100 is prevented. As described above, it is preferable to first remove the bolt B fastened to the close contact 290 through the bolt hole BH formed at the distal end of the rail plate 100 from the rail plate 100. (S11-1 / Front end separation step of FIG. 5)

That is, the rail plate 100 does not fall from the holder 200 of the bracket BK since only the bolt B fastened to the front end is removed.

In addition, when the front end of the rail plate 100 is separated, the bolt hole formed at the rear end of the rail plate 100 as shown so that the rear end of the rail plate 100 is separated from the holder 200 ( It is preferable to remove the bolt (B) fastened to the close contact 290 through the BH) from the rail plate 100. (S11-2 / rear end separation step of Figure 5)

That is, the front end of the rail plate 100 is separated from the holder 200, and the rear end is separated from the holder 200.

In addition, when the rear end of the rail plate 100 is separated, the rail plate 100 is pressurized by the operator in the longitudinal middle portion of the rail plate 100 so that the rail plate 100 is completely separated from the holder 200 As shown in the state to remove the bolt (B) fastened to the close wing 290 through the bolt hole (BH) formed in the longitudinal middle portion of the rail plate 100 from the rail plate (100). It is preferable to (S11-3 / intermediate separation step of Figure 5).

That is, the rail plate 100 after the rear end is separated from the holder 200, the middle portion is separated from the holder 200, even if separated is separated from the holder 200 by the pressing force of the operator does not fall.

On the other hand, when separation of the front end portion, the rear end and the middle portion of the rail plate 100 is completed, the bolt (B) is removed and the rail plate 100 separated from the holder 200 is the holder 200 As shown to be removed from the rail plate 100 is removed by removing it from the holder 200. (S12 / rail plate removal step of Figure 5)

That is, the rail plate 100 is separated from the holder 200 and is supported by the worker's hand or body and is in close contact with the holder 200 (it does not fall and is simply in close contact with the holder by the support force of the worker). In a state of being in a state of being completely removed from the holder 200 by a worker and then moved.

In addition, when the separation of the rail plate 100 is completed, the holder 200 from which the rail plate 100 has been removed is separated from the support post 1 so that the bracket BK is separated from the support post 1. As shown, the long bolt LB fastened through the holder 200 and fastened to the support 1 is removed to remove the bracket 200 from the support 1 (S13 of FIG. 5). / Bracket removal step)

By the method described above, the rail plate 100 and the holder 200 are completely dismantled from the support 1.

The method of installing and dismantling the guardrail according to the present invention as described above comprises: a rail plate comprising upper and lower protrusions having a trapezoidal shape protruding from the upper and lower portions, and vertically formed intermediate portions connecting the upper and lower protrusions; An open side end portion corresponding to the rail plate, a semi-circular holder having an inclined incision formed in the lower side of the open side end portion, and a bracket including a close-up wing bent at the open side end portion of the holder; Since the rail plate and bracket are installed or dismantled by the considered installation or dismantling step, the newly designed rail plate and bracket can be easily installed or dismantled on the support.

In addition, when the rail plate is fixed or dismantled to the bracket, the middle part of the rail plate is preferentially fixed or dismantled to the bracket, so that the rail plate can be prevented from falling during installation or dismantling.

In addition, since the bolt holes formed at the front end and the rear end of the rail plate are superimposed crosswise, the bolts are loosely fastened so that another rail plate connected to the rear end of the already installed rail plate can be installed while adjusting the installation height according to the curvature of the road. There is also an effect.

Claims (6)

A rail plate 100 including upper and lower protrusions 110 and 130 having a trapezoidal shape protruding from the upper and lower portions, and vertically formed intermediate portions 120 connecting the upper and lower protrusions 110 and 130; An open side end portion corresponding to the rail plate 100 is provided, and a semi-circular holder 200 having an inclined incision hole 250 formed at a side lower portion of the open side end portion, and an open side of the holder 200. In the installation method of the guard rail for installing a bracket (BK) consisting of a close wing 290 bent at the end; The open side end of the holder 200 is inserted to the outside of the support 1 so that the bracket BK is disposed on the support 1, and the holder 200 is closely attached to the support 1. To arrange the bracket step (S1); The support 200 is formed by penetrating the long bolt LB through a horizontal long hole 240 formed on the side of the holder 200 so that the holder 200 in close contact with the support 1 is fixed to the support 1. Fixing bracket to fasten to (S2); The rail plate 100 is brought into close contact with the open side end of the holder 200 such that the rail plate 100 is disposed on the holder 200 of the bracket BK fixed to the support 1. The vertical surface 114 and the lower inclined surface 116 constituting the upper protrusion 110 of the rail plate 100 and the upper inclined surface 132 and the vertical surface 134 of the middle portion 120 and the lower protrusion 130. To the upper vertical side 214, the upper inclined side 216, the vertical intermediate side 220, the lower inclined side 232 and the lower vertical side 234 of the holder 200, Rail plate arrangement step (S3) to closely contact the inner surface of the rail plate 100 to the close wing (290); And The outer surface of the rail plate 100 so that the rail plate 100 is fixed to the holder 200 of the bracket BK while preventing the rail plate 100 disposed on the holder 200 from falling. Formed on the lower inclined surface 116 constituting the protrusion 110 of the rail plate 100 and the upper inclined surface 132 of the intermediate part 120 and the lower protrusion 130 in a pressurized state. And a rail plate fixing step (S4) of fastening the bolt (B) through the bolt hole (BH) to the close contact blade (290). According to claim 1, The rail plate fixing step (S4), The bolt hole (BH) formed in the middle portion of the rail plate 100 in a state in which the longitudinal middle portion of the rail plate 100 is pressed so that a portion of the rail plate 100 is fixed to the holder 200. A middle portion fixing step (S4-1) of first penetrating the bolt (B) to fasten the middle portion of the rail plate (100) to the contact blade (290); Fastening to the close blade 290 by passing the bolt (B) through the bolt hole (BH) formed in the tip of the rail plate 100 so that the tip of the rail plate 100 is fixed to the holder 200. A front end fixing step (S4-2); And The bolt B is formed through the bolt hole BH formed at the rear end of the rail plate 100 so that the rear end of the rail plate 100 is fixed to the holder 200. How to install the guardrail comprising a; rear end fixing step (S4-3) to fasten. The method of claim 1, The other end of the rail plate 100 at the rear end of the rail plate 100 so that another rail plate 100 formed in the same manner as the rail plate 100 is connected to the rear end of the rail plate 100. Rail plate overlapping step (S5) to overlap; The rail in the bolt hole (BH) formed in the transverse direction in the upper and lower protrusions 110 and 130 of the rear end of the rail plate 100 so that only the rear end and the front end of the rail plate 100 overlap as much as the set portion Bolts BH formed in the longitudinal direction in the upper and lower protrusions 110 and 130 at the tip of the plate 100 to cross the bolt holes BH in the transverse and longitudinal directions in a cross shape. Ball overlapping step (S6); And The overlapping portion coupling step (S7) for bolting the overlapping portion by passing the bolt (B) through the bolt hole (BH) so that the rail plate 100 is overlapped with the bolt hole (BH); Guardrail installation method comprising. The method of claim 3, wherein the overlapping portion coupling step (S7), The rail plate 100 is coupled to another bolt to loosen the bolt (B) so that the installation height is adjusted according to the curvature of the road is another rail plate 100 overlapping the rear end of the rail plate 100 Provisional coupling step (S7-1); And When the installation height adjustment of the another rail plate 100 is completed, the coupling completion step (S7-2) for completely bolting the bolt (B) so that the rail plate 100 is superimposed firmly; Guardrail installation method characterized in that. A rail plate 100 including upper and lower protrusions 110 and 130 having a trapezoidal shape protruding from the upper and lower portions, and vertically formed intermediate portions 120 connecting the upper and lower protrusions 110 and 130; Semi-circular holder 200 is provided with an open side end portion corresponding to the rail plate 100 in close contact with the rail plate 100, the inclined cut hole 250 is formed in the side lower portion of the open side end portion And a bracket (BK) formed of a close wing 290 fixed and bolted to the rail plate 100 in a state of being bent at an open side end of the holder 200; a guard for dismantling from the support 1 In the method of disassembling the rail, The lower slope surface 116 and the lower inclined surface 116 constituting the protruding portion 110 of the rail plate 100 so that the rail plate 100 is separated from the bracket BK while the rail plate 100 is prevented from falling. Fastening to the contact blade 290 of the holder 200 constituting the bracket (BK) through the bolt hole (BH) of the upper inclined surface 132 of the intermediate portion 120 and the lower protrusion 130. Rail plate separation step (S11) for removing the bolt (B) from the rail plate 100; Rail plate to remove the rail plate 100 from the holder 200 so that the bolt (B) is removed to remove the rail plate 100 separated from the holder 200 from the holder 200 Removing step (S12); And The holder 200 from which the rail plate 100 is removed is separated from the support 1 to penetrate the holder 200 so that the bracket BK is removed from the support 1. Removing the long bolt (LB) coupled to the bracket to remove the bracket 200 from the strut (1) removing the bracket (S13). According to claim 5, The rail plate separation step (S11), The tip portion of the rail plate 100 is preferentially separated from the holder 200 so that the contact is made through the bolt hole BH formed at the tip portion of the rail plate 100 so as to prevent the rail plate 100 from falling. A tip separating step (S11-1) for preferentially removing the bolt (B) fastened to the blade (290) from the rail plate (100); The bolt B fastened to the close wing 290 through the bolt hole BH formed at the rear end of the rail plate 100 so that the rear end of the rail plate 100 is separated from the holder 200. Rear end separation step (S11-2) for removing the from the rail plate 100; And The bolt hole (BH) formed in the longitudinal middle portion of the rail plate 100 in a state in which the longitudinal middle portion of the rail plate 100 is pressed so that the rail plate 100 is completely separated from the holder 200. Disassembling step (S11-3) of removing the bolt (B) fastened to the close contact (290) from the rail plate (100) through the).

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