KR101075193B1 - Shock absorbing type guard-rail - Google Patents

Shock absorbing type guard-rail Download PDF

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Publication number
KR101075193B1
KR101075193B1 KR1020090023815A KR20090023815A KR101075193B1 KR 101075193 B1 KR101075193 B1 KR 101075193B1 KR 1020090023815 A KR1020090023815 A KR 1020090023815A KR 20090023815 A KR20090023815 A KR 20090023815A KR 101075193 B1 KR101075193 B1 KR 101075193B1
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South Korea
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rail
support
protrusion
cutout
present
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KR1020090023815A
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Korean (ko)
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KR20100105024A (en
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최동호
박완순
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한양대학교 산학협력단
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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
    • E01F15/0461—Supports, e.g. posts

Abstract

본 발명은 가드레일의 지주에 다단의 절개부를 형성하여 일정수준 이상의 외력이 작용될 시 절개부 주변이 일종의 소성힌지(plastic hinge)로 작용하면서 지주가 변형되도록 함으로써 충격을 단계적으로 흡수할 수 있도록 한 것이다.The present invention is to form a multi-stage incision in the support of the guardrail to absorb the impact step by step so that the support is deformed while acting as a kind of plastic hinge when a certain level of external force is applied. will be.

본 발명을 통하여 가드레일의 충격흡수 성능을 제고하고, 판상레일의 불요(不要) 파단을 방지함으로써, 가드레일의 안전성을 향상시키는 효과를 얻을 수 있다.The present invention improves the shock absorbing performance of the guard rail and prevents unnecessary breakage of the plate rail, thereby improving the safety of the guard rail.

가드레일(guard-rail), 지주, 절개부 Guard-rails, props and incisions

Description

충격흡수형 가드레일{Shock absorbing type guard-rail}Shock absorbing type guard rail

본 발명은 가드레일의 지주에 다단의 절개부를 형성하여 일정수준 이상의 외력이 작용될 시 절개부 주변이 일종의 소성힌지(plastic hinge)로 작용하면서 지주가 변형되도록 함으로써 충격을 단계적으로 흡수할 수 있도록 한 것이다.The present invention is to form a multi-stage incision in the support of the guardrail to absorb the impact step by step so that the support is deformed while acting as a kind of plastic hinge when a certain level of external force is applied. will be.

가드레일은 도로변 또는 도로의 중앙부에 설치되어 사고시 차량의 추락 또는 중앙선침범을 방지하는 구조물로서, 일반적으로 노선을 따라 지반에 고정되는 다수의 지주와 이 지주에 고정되는 판상레일로 구성되며, 판상레일은 단면계수를 확보하기 위하여 절곡된 단면을 가진다.Guard rail is a structure installed on the side of the road or in the center of the road to prevent the fall or central line invasion of the vehicle in case of an accident. Generally, the guard rail is composed of a plurality of props fixed to the ground along the line and plate rails fixed to the props. Has a cross section that is bent to secure a cross section modulus.

가드레일은 사고시 차량이 충돌할 경우 일차적으로 판상레일이 변형되면서 충격을 흡수하고 이후 지주가 변형되는 방식으로 거동하게 되는데, 가드레일용 지주는 노변 지반에 타입된 강철제 관체로서 판상레일에 비하여 월등한 강성을 가지고 있으므로, 외력의 작용시 변형을 통한 충격흡수 효과를 거의 기대할 수 없다.When a vehicle collides during an accident, the guard rail behaves in such a way that the plate rail is deformed and absorbs the impact, and then the pillar is deformed. The guard rail prop is a steel tube type on the roadside ground, which is superior to the plate rail. Since it has a rigidity, it is hard to expect the effect of shock absorption through deformation under the action of external force.

따라서 사고 발생시 최초 판상레일과의 충돌로 인한 충격외에도 과도한 강성의 지주로 인한 급격한 변형중단이 발생하여 탑승자에게 2차충격을 가하게 되는 문제점이 있었다.Therefore, when an accident occurred, in addition to the impact caused by the collision with the first plate rails, there was a problem in that a sudden deformation interruption caused by excessive stiffness occurred, thereby causing a second shock to the occupant.

또한, 고속의 충돌시 지주의 미미한 변형으로 인하여 판상레일에 충격량이 집중되면서 지주와 지주사이의 판상레일 연결부위가 파단되어 차량이 추락하거나 도로를 이탈하는 심각한 문제점이 있었다.In addition, due to the slight deformation of the strut during high-speed collision, the impact amount is concentrated on the plate rail, and the plate rail connection portion between the strut and the strut is broken, which causes a serious problem that the vehicle falls or leaves the road.

본 발명은 전술한 문제점을 감안하여 창안한 것으로, 지반에 고정된 지주(10)와, 지주(10)에 설치된 판상레일(30)로 구성되어 도로에 설치되는 가드레일(guard-rail)에 있어서, 지주(10)의 양 측면에는 다수의 절개부(20)가 다단으로 형성되고, 절개부(20)의 내부에는 절개부(20)의 일측 하단에서 상측으로 돌출된 상방돌출부(21)와 절개부(20)의 타측 상단에서 하측으로 돌출된 하방돌출부(22)가 형성됨을 특징으로 하는 충격흡수형 가드레일이며, 상기 상방돌출부(21)에는 하방돌 출부(22)측 단부가 지주(10) 내측으로 절곡되어 형성된 절곡부(23a)가 형성되고, 하방돌출부(22)에는 상방돌출부(21)측 단부가 지주(10) 내측으로 절곡되어 형성된 절곡부(23b)가 형성됨을 특징으로 하는 충격흡수형 가드레일이다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has a support rail (10) fixed to the ground and a plate rail (30) provided on the support (10) in a guard rail (guard-rail) installed on a road. On both sides of the support 10, a plurality of cutouts 20 are formed in multiple stages, and inside the cutout 20, an upper protrusion 21 and a cutout protruding upward from one side lower end of the cutout 20 are cut out. It is a shock-absorbing guard rail, characterized in that the lower projection 22 is formed to protrude downward from the other end of the upper portion 20, the upper projection 21, the lower projection 22 side end is the support (10) A bent portion 23a formed by bending inward is formed, and a shock absorbing member is formed in the downwardly protruding portion 22 by forming a bent portion 23b formed by bending an upper end portion 21 side end portion into a support 10. Type guardrail.

본 발명을 통하여 가드레일의 충격흡수 성능을 제고하고, 판상레일의 불요(不要) 파단을 방지함으로써, 가드레일의 안전성을 향상시키는 효과를 얻을 수 있다.The present invention improves the shock absorbing performance of the guard rail and prevents unnecessary breakage of the plate rail, thereby improving the safety of the guard rail.

본 발명의 상세한 구성 및 작용을 첨부된 도면을 통하여 설명하면 다음과 같다.The detailed configuration and operation of the present invention will be described with reference to the accompanying drawings.

우선 도 1은 본 발명이 설치된 상태를 예시한 것으로, 동 도면을 통하여 알 수 있는 바와 같이 판상레일(30)이 고정되는 지주(10)에 절개부(20)가 형성된다.First, FIG. 1 illustrates a state in which the present invention is installed, and the cutout 20 is formed in a support 10 to which the plate-shaped rail 30 is fixed, as can be seen through the drawing.

도 2는 본 발명의 분해사시도로서, 원관형 지주(10)에 다수의 절개부(20)가 다단으로 형성되어 있음을 알 수 있으며, 도 3은 본 발명의 절개부(20) 상세 사시도로서 동 도면을 통하여 알 수 있는 바와 같이, 절개부는 지주(10)의 양 측면에 동일한 형상으로 형성된다.Figure 2 is an exploded perspective view of the present invention, it can be seen that a plurality of incisions 20 are formed in multiple stages in the cylindrical columnar 10, Figure 3 is a detailed perspective view of the incision 20 of the present invention As can be seen through the figure, the cutout is formed in the same shape on both sides of the support (10).

여기서 원관체(圓管體)인 지주(10)의 양 측면이라 함은 판상레일(30)이 부착되는 면을 정면으로 정하였을 때 양 측면을 말하는 것으로, 사고시 판상레일(30)에 의하여 전달되는 충격이 정면으로 가해지므로 측면에 절개부(20)를 형성하여 해당 단면에서의 단면계수를 효과적으로 감소시킴은 물론 절개부(20)의 주변, 즉 절개부(20)가 형성된 부위의 지주(10) 정면 및 배면이 소성힌지(plastic hinge)로서 거동할 수 있도록 한 것이다.Here, both sides of the columnar (지주 管 体) of the support (10) refers to both sides when the front surface is attached to the plate rail 30 is attached to the side, which is transmitted by the plate rail 30 in the event of an accident Since the impact is applied to the front side, the incision 20 is formed on the side to effectively reduce the cross-sectional coefficient in the cross section, as well as the support 10 of the periphery of the incision 20, that is, the site where the incision 20 is formed. The front and back are intended to behave as plastic hinges.

도 4는 본 발명의 대표단면도로서, 동 도면의 타원내 확대부를 통하여 알 수 있는 바와 같이 수평의 절개부(20) 내부에는 절개부(20)의 일측 하단에서 상측으로 돌출된 상방돌출부(21)와 절개부(20)의 타측 상단에서 하측으로 돌출된 하방돌출부(22)가 형성되어, 전체적으로 회전된 'ㄹ'자 형상의 절개부(20)가 형성되며, 지주(10)의 종단을 따라 다수의 절개부(20)가 다단으로 배열된다.4 is a representative cross-sectional view of the present invention, the upper projection 21 protruding upward from the lower side of one side of the incision 20 inside the horizontal incision 20 as can be seen through the enlarged in the ellipse of the same figure And a lower protrusion 22 protruding downward from the upper end of the other side of the cutout 20, a 'r' shaped cutout 20 rotated as a whole is formed and is formed along the end of the support 10. The cutouts 20 are arranged in multiple stages.

이러한 상방돌출부(21) 및 하방돌출부(22)는 외력의 작용으로 인한 지주(10)의 변형시 과도한 변형을 방지하는 스토퍼(stopper) 역할을 수행하는 것으로, 도 5의 타원내 확대부에서와 같이 상방돌출부(21)의 상단부와 하방돌출부(22)의 하단부가 상호 접하면서 절개부(20) 주변의 과도한 변형을 억제하게 된다.The upper protrusion 21 and the lower protrusion 22 serve as a stopper to prevent excessive deformation during deformation of the strut 10 due to the action of an external force, as in the enlarged in the ellipse of FIG. The upper end of the upper protrusion 21 and the lower end of the lower protrusion 22 are in contact with each other to suppress excessive deformation around the cutout 20.

즉, 지주(10)의 상단이 완전 전도될 정도의 변형이 발생될 경우 차량이 가드레일을 이탈할 수 있으므로 절개부(20)에 상방돌출부(21) 및 하방돌출부(22)를 형성하여 과도한 변형을 억제하고, 도 5를 통하여 알 수 있는 바와 같이 절개부(20)를 다단으로 형성하여 순차적이고 완만한 변형을 유도함으로써 충격흡수효과를 확보함은 물론 지주(10)의 과도한 변형을 방지하여 추락 등 2차사고를 예방할 수 있는 것이다.That is, when the deformation of the support 10 to the top is completely conducted, the vehicle may leave the guard rail, so that the upper protrusion 21 and the lower protrusion 22 are formed in the cutout 20 to excessive deformation. As shown in FIG. 5, the incision 20 is formed in multiple stages to induce sequential and gentle deformation, thereby assuring a shock absorbing effect as well as preventing excessive deformation of the support 10. This can prevent secondary accidents.

한편, 도 6 및 도 7은 절개부(20)의 상방돌출부(21) 및 하방돌출부(22)에 각 각 지주(10) 내측으로 형성된 절곡부(23)를 구성한 실시예로서, 이러한 절곡부(23)는 상방돌출부(21)와 하방돌출부(22)간의 접촉면적을 확보함으로써 사고시 절개부(20)의 변형간 상방돌출부(21)와 하방돌출부(22)가 접촉하지 않고 서로 이탈되는 현상을 방지하기 위한 것이다.6 and 7 illustrate an example in which the bent portions 23 formed in the pillars 10 are respectively formed on the upper protrusions 21 and the lower protrusions 22 of the cutout 20. 23 secures the contact area between the upper protrusion 21 and the lower protrusion 22 to prevent the upper protrusion 21 and the lower protrusion 22 from being deformed from each other without deforming between the deformations of the incision 20 during an accident. It is to.

즉, 도 7에서와 같이, 상방돌출부(21)에는 하방돌출부(22)측 단부가 지주(10) 내측으로 절곡되어 형성된 절곡부(23a)를 형성하고, 하방돌출부(22)에는 상방돌출부(21)측 단부가 지주(10) 내측으로 절곡되어 형성된 절곡부(23b)를 형성함으로써, 변형시 상방돌출부(21) 및 하방돌출부(22)가 서로 이탈되지 않고 안정적으로 접촉할 수 있도록 한 것이다.That is, as shown in FIG. 7, the upper protrusion 21 is formed with a bent portion 23a formed by bending the lower protrusion 22 side end portion into the support 10, and the lower protrusion 22 has an upper protrusion 21. By forming the bent portion 23b formed by bending the side end portion into the support 10, the upper protrusion 21 and the lower protrusion 22 can stably contact each other without being separated from each other during deformation.

이상에서와 같은 본 발명을 통하여 가드레일의 충격흡수 성능을 제고하고, 가드레일 지주(10)의 완만하고 단계적인 변형을 유도하며, 판상레일의 불요(不要) 파단을 방지함으로써, 가드레일의 안전성을 향상시키는 효과를 얻을 수 있다.Through the present invention as described above, by improving the shock absorbing performance of the guard rail, induces a gentle and stepped deformation of the guard rail support 10, and prevents unnecessary break of the plate rail, safety of the guard rail Can improve the effect.

도 1은 본 발명의 사시도1 is a perspective view of the present invention

도 2는 본 발명의 분해사시도2 is an exploded perspective view of the present invention

도 3은 본 발명의 요부발췌 사시도3 is a perspective view of the main portion of the present invention

도 4는 본 발명의 대표단면도4 is a representative cross-sectional view of the present invention.

도 5는 본 발명의 변형상태 설명도5 is an explanatory view of a modified state of the present invention.

도 6은 절곡부가 형성된 본 발명의 일 실시예 분해사시도Figure 6 is an exploded perspective view of an embodiment of the present invention the bent portion formed

도 7은 도 6 실시예의 요부발췌 사시도Figure 7 is a perspective view of the main portion of Figure 6 embodiment

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

10 : 지주10: prop

20 : 절개부20: incision

21 : 상방돌출부21: upward projection

22 : 하방돌출부22: downward projection

23 : 절곡부23: bend

30 : 판상레일30: plate rail

Claims (2)

지반에 고정된 지주(10)와, 지주(10)에 설치된 판상레일(30)로 구성되어 도로에 설치되는 가드레일(guard-rail)에 있어서,In the guard rail (rail-rail) consisting of a support (10) fixed to the ground and a plate-like rail (30) installed on the support (10) 지주(10)의 양 측면에는 다수의 절개부(20)가 다단으로 형성되고;On both sides of the support 10, a plurality of cutouts 20 are formed in multiple stages; 절개부(20)의 내부에는 절개부(20)의 일측 하단에서 상측으로 돌출된 상방돌출부(21)와 절개부(20)의 타측 상단에서 하측으로 돌출된 하방돌출부(22)가 형성되어, 절개부(20)는 회전된 'ㄹ'자 형상으로 형성되며, 외력의 작용으로 인한 지주(10)의 변형시 상방돌출부(21)의 상단부와 하방돌출부(22)의 하단부가 상호 접하면서 절개부(20) 주변의 과도한 변형을 억제함을 특징으로 하는 충격흡수형 가드레일.The inside of the cutout 20 is formed with an upward protrusion 21 protruding upward from one side lower end of the cutout 20 and a downward protrusion 22 protruding downward from the other end of the cutout 20. The part 20 is formed in the shape of a rotated 'ㄹ' shape, the upper end of the upper protrusion 21 and the lower end of the lower protrusion 22 in contact with each other when the deformation of the strut 10 due to the action of the external incision ( 20) Shock-absorbing guard rail, characterized in that it suppresses excessive deformation of the surroundings. 제1항에 있어서, 상방돌출부(21)의 하방돌출부(22) 쪽 단부에는 지주(10) 내측으로 절곡된 절곡부(23a)가 형성되고;2. The bent portion (23a) bent inward of the support (10) is formed at the end of the lower projection (22) of the upper projection (21); 하방돌출부(22)의 상방돌출부(21) 쪽 단부에는 지주(10) 내측으로 절곡된 절곡부(23b)가 형성됨을 특징으로 하는 충격흡수형 가드레일.Shock-absorbing guardrail, characterized in that the bent portion (23b) is bent to the inside of the support (10) at the end of the upper projection (21) side of the lower projection (22).
KR1020090023815A 2009-03-20 2009-03-20 Shock absorbing type guard-rail KR101075193B1 (en)

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KR101397382B1 (en) * 2013-11-13 2014-05-20 (주) 금성산업 A safety with multiple absorbing-impact
KR102185214B1 (en) * 2018-08-06 2020-12-01 신성이앤씨 주식회사 Self-restoration type semi-rigid crash barrier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001115423A (en) 1999-10-13 2001-04-24 Mikio Kuzuu Device for reducing damage on vehicle and guard rail and number of persons injured/killed by mounting shock absorber on guard rail and guard plate
JP2005188031A (en) 2003-12-24 2005-07-14 Nippon Steel Metal Prod Co Ltd Strut for protective fence
KR200403570Y1 (en) * 2005-09-30 2005-12-09 최복환 Guard rail using decrease impact
JP2008095472A (en) 2006-10-16 2008-04-24 Shinko Kenzai Ltd Post for guardrail

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001115423A (en) 1999-10-13 2001-04-24 Mikio Kuzuu Device for reducing damage on vehicle and guard rail and number of persons injured/killed by mounting shock absorber on guard rail and guard plate
JP2005188031A (en) 2003-12-24 2005-07-14 Nippon Steel Metal Prod Co Ltd Strut for protective fence
KR200403570Y1 (en) * 2005-09-30 2005-12-09 최복환 Guard rail using decrease impact
JP2008095472A (en) 2006-10-16 2008-04-24 Shinko Kenzai Ltd Post for guardrail

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