JP3507974B2 - Support fence post - Google Patents
Support fence postInfo
- Publication number
- JP3507974B2 JP3507974B2 JP28242297A JP28242297A JP3507974B2 JP 3507974 B2 JP3507974 B2 JP 3507974B2 JP 28242297 A JP28242297 A JP 28242297A JP 28242297 A JP28242297 A JP 28242297A JP 3507974 B2 JP3507974 B2 JP 3507974B2
- Authority
- JP
- Japan
- Prior art keywords
- fence
- base plate
- center stiffener
- stiffener
- prop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—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
- E01F15/0476—Foundations
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Description
【0001】[0001]
【発明の属する技術分野】この発明は、車道と歩道の境
界などに沿って設置される防護柵の技術分野に属し、車
の衝突時の衝撃力を支柱の塑性変形(弾塑性変形を含
む。)に伴う塑性エネルギー(弾塑性エネルギーを含
む。)として吸収し乗員の安全性を図る防護柵用支柱に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a protective fence installed along a boundary between a roadway and a sidewalk, and includes the impact force at the time of collision of a vehicle including the plastic deformation (elastic-plastic deformation) of the support column. ) And the plastic fence energy (including elasto-plastic energy) associated with it, for the safety fence of the occupant for safety of the occupant.
【0002】[0002]
【従来の技術】従来、道路用、橋梁用などの防護柵に関
しては、車が衝突した際のエネルギーを可及的に吸収し
て事故の被害をできるだけ小さく抑え、乗員等の安全性
を図る工夫が種々行われてきた。例えばガードレールに
用いられる防護柵用支柱には、次のようなものが提案さ
れている。
実公昭50−30183号公報には、防護柵用支柱
の基部の背面側に、補剛用としてのスチフナーをビーム
と直角な向きに1枚設けた構成が開示されている。
実開平3−2013号公報及び実公平5−2654
号公報には、防護柵用支柱の基部に、前後左右にそれぞ
れ直交する配置で合計4枚の補剛用スチフナーを設けた
構成が開示されている。
特公昭42−6707号公報には、防護柵用支柱の
下端部がコンクリート基礎内に埋め込まれた支持装置の
弾性片により囲まれて支持された構成が開示されてい
る。
特公平4−7218号公報には、防護柵用支柱が下
側の固定軸部と、上側のスライド軸部との組合せで構成
され、車が衝突した際にはスライド軸部が上方へスライ
ドしてエネルギー吸収を行い、かつ車が防護柵を乗り越
えて転落する事故を防ぐ構成が開示されている。2. Description of the Related Art Conventionally, for protective fences for roads, bridges, etc., measures to absorb the energy when a vehicle collides as much as possible and suppress the damage of the accident as much as possible to improve the safety of passengers etc. Has been done in various ways. For example, the following has been proposed as a guard fence support used for a guardrail. Japanese Utility Model Publication No. 50-30183 discloses a structure in which one stiffener for stiffening is provided on the back side of the base of a support for a protective fence in a direction perpendicular to the beam. Japanese Utility Model Publication No. 3-2013 and Japanese Utility Model Publication 5-2654
The publication discloses a configuration in which a total of four stiffeners for stiffening are provided at the base of the support for the protective fence in a front-back and left-right orthogonal arrangement. JP-B-42-6707 discloses a structure in which the lower end portion of a support for a protective fence is surrounded and supported by elastic pieces of a supporting device embedded in a concrete foundation. In Japanese Examined Patent Publication No. 4-7218, a prop for a protective fence is configured by a combination of a lower fixed shaft portion and an upper slide shaft portion, and the slide shaft portion slides upward when a vehicle collides. A structure is disclosed in which energy is absorbed by the vehicle and an accident in which the vehicle gets over the protective fence and falls is prevented.
【0003】[0003]
I)上記及びの防護柵用支柱は、スチフナーによっ
て支柱の基部が補剛されているため、図6に荷重−変位
線図を例示したように、スチフナーの初期剛性に従い、
車の衝突時の衝撃力が小さいときには車を撥ね返してし
まい、二次災害のおそれがある。逆に、許容以上の大き
な衝撃力を受けると、支柱材が限界強度に達した途端に
スチフナーの上端部近傍の位置で折れてしまい、一気に
防護効果を喪失する危険がある。
II)上記の防護柵用支柱は、車の衝突時の衝撃力を支
持装置における弾性片の弾性エネルギーとして吸収する
構造であるため、一見合理的に思われるが、実際はどれ
位の大きさの衝撃力に対して防護効果を発揮させるかに
関し、弾性片その他の設計、製作に難点がある。弾性片
が軟らか過ぎたり硬過ぎたりしては効果に乏しい。ま
た、支柱の支持装置は複雑な構造であり、施工性やコス
ト等の面でも問題がある。
III)上記の防護柵用支柱は、上側のスライド軸部が上
方へスライドして車の衝突による衝撃エネルギーを吸収
する構造であるが、形状的に限られた場所への設置とな
るほか、恒久的施設としては錆の発生などによる防護効
果の保全に疑問がある。I) In the above and the above-mentioned protective fence support, since the base of the support is stiffened by the stiffener, as shown in the load-displacement diagram in FIG. 6, according to the initial stiffness of the stiffener,
If the impact force of a car collision is small, it will bounce off the car, which may cause a secondary disaster. On the other hand, if the impact strength exceeds the permissible level, the strut material will break at a position near the upper end of the stiffener as soon as it reaches the limit strength, and there is a danger that the protective effect will be lost at once. II) The above-mentioned props for the protective fence have a structure that absorbs the impact force at the time of a car collision as the elastic energy of the elastic pieces in the supporting device, so at first glance it seems reasonable, but in reality how large the impact is. There is a difficulty in designing and manufacturing elastic pieces and the like regarding whether to exert a protective effect against force. The effect is poor if the elastic piece is too soft or too hard. Further, since the support device for the support column has a complicated structure, there are problems in terms of workability and cost. III) The above-mentioned protective fence column has a structure in which the upper slide shaft part slides upward to absorb the impact energy due to a car collision, but it will be installed in a place with a limited shape, and it will be permanently installed. There is a question about the protection of the protective effect due to the occurrence of rust etc.
【0004】従って、本発明の目的は、車の衝突による
大小様々な衝撃力を受けても、平均してエネルギー吸収
機能が良好に奏され、衝突した車を撥ね返したり、逆に
支柱自身が破壊されて防護効果を喪失してしまう心配が
なく、また、施工性に優れ、コストも安くて実用性、汎
用性などに優れた防護柵用支柱を提供することにある。Therefore, the object of the present invention is to provide a good energy absorbing function on average even if a large or small impact force due to a collision of a vehicle is received, and the collision vehicle is repelled, or conversely, the strut itself is There is no need to worry that the protective effect will be destroyed and lose the protective effect. Moreover, it is to provide a protection fence post that is excellent in workability, low cost, practicality and versatility.
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
の手段として、請求項1に記載した発明に係る防護柵用
支柱は、車の衝突による衝撃力を支柱の塑性変形に伴う
塑性エネルギーとして吸収する防護柵用支柱であって、
地面のコンクリート基盤1上に固定されるベースプレー
ト2の上面にビーム、パイプ又はワイヤーケーブル等の
柵用材9と平行な向きに垂直に固定したセンタースチフ
ナー6が設けられ、筒状の支柱材7にはその下端部から
垂直方向上向きに前記センタースチフナー6の高さH及
び板厚相当幅Tの切欠部8が設けられ、該切欠部8が前
記センタースチフナー6に嵌め込まれ、前記切欠部8と
前記センタースチフナー6との接触縁部が溶接により接
合され、支柱材7の下端とベースプレート2とは溶接し
ていないことを特徴とする。請求項2に記載した発明
は、請求項1に記載した防護柵用支柱において、支柱材
7の下端はベースプレート2へぴったり接触させるか又
は少し離していることを特徴とする。 As a means for solving the above-mentioned problems, in the protection fence post according to the invention described in claim 1, the impact force due to the collision of the vehicle is regarded as the plastic energy due to the plastic deformation of the post. A protective fence post that absorbs,
A center stiffener 6 which is vertically fixed in a direction parallel to a fence material 9 such as a beam, a pipe or a wire cable is provided on the upper surface of a base plate 2 which is fixed on a concrete base 1 on the ground, and a cylindrical support member 7 is provided. notch 8 of the height H and thickness corresponding width T of the center stiffener 6 vertically upward is provided from its lower end, cutout portion 8 is fitted in front <br/> Symbol Center stiffener 6, the cut The contact edge between the portion 8 and the center stiffener 6 is joined by welding , and the lower end of the support member 7 and the base plate 2 are welded.
It is characterized by not being. Invention according to claim 2
Is a pillar material in the pillar for protection fence according to claim 1.
Make sure that the bottom edge of 7 is in close contact with the base plate 2
Are characterized by a slight separation.
【0006】[0006]
【発明の実施形態及び実施例】次に、図示した本発明の
実施形態及び実施例を説明する。本発明の防護柵用支柱
は、ビーム、パイプ又はワイヤーケーブル等の柵用材を
支持してガードレール、ガードパイプ又はガードケーブ
ル等の所謂防護柵を構成し、車の衝突による衝撃力を支
柱の塑性変形に伴う塑性エネルギーとして吸収するもの
として好適に実施される。Embodiments and Examples of the Invention Next, the embodiments and examples of the present invention shown in the drawings will be described. The protective fence post of the present invention constitutes a so-called protective fence such as a guard rail, a guard pipe or a guard cable by supporting a fence material such as a beam, a pipe or a wire cable, and plastically deforms the impact force due to a collision of a vehicle. It is preferably implemented as one that is absorbed as plastic energy associated with.
【0007】図1〜図3に示した防護柵用支柱の実施例
は、柵用材としてビームを用いたビーム型防護柵のう
ち、いわゆるガードレールと呼ばれるものである。地面
のコンクリート基盤1の上に強固に固定されるベースプ
レート2の上面に、ビーム9と平行な向きに垂直に固定
したセンタースチフナー6が設けられ、円筒状の支柱材
7にはその下端部から垂直方向上向きに前記センタース
チフナー6の高さH及び板厚Tに近似した形状、大きさ
の切欠部8が設けられ(図2A参照)、該切欠部8が前
記センタースチフナー6に嵌め込まれ、前記切欠部8と
前記センタースチフナー6との接触縁部が連続隅肉溶接
により強固に接合されている(図2B参照)。支柱材7
の下端とベースプレート2とは一切溶接していない。支
柱材7の下端は、図2B及び図3に示したようにベース
プレート2へぴったり接触させる場合のほか、センター
スチフナー6の塑性変形を実質良好ならしめる設計法と
して、支柱材7の下端をベースプレート2の上面から数
mm乃至数10mm程度離して構成することも実施され
る。[0007] The embodiment of the protection fence column shown in Figs. 1 to 3 is a so-called guard rail among beam-type protection fences using a beam as a fence material. A center stiffener 6 fixed vertically in a direction parallel to the beam 9 is provided on the upper surface of a base plate 2 which is firmly fixed on the concrete base 1 on the ground, and a cylindrical support member 7 is vertically attached from its lower end. shape similar to the height H and the thickness T of the center stiffener 6 in upward direction (see FIG. 2A) the size of the notch 8 is provided, cutout portion 8 before <br/> Symbol Center stiffener 6 The contact edge between the notch 8 and the center stiffener 6 is firmly joined by continuous fillet welding (see FIG. 2B). Support material 7
The lower end of the base plate 2 and the base plate 2 are not welded at all. The lower end of the strut member 7, in addition to the case of flush against the base plate 2 as shown in FIGS. 2B and 3, the 塑 deformation of the center stiffener 6 as substantially good if occupied design method, the base plate of the lower end of the struts 7 It is also possible to implement the structure separated from the upper surface of 2 by several mm to several tens mm.
【0008】ベースプレート2の上面にセンタースチフ
ナー6をビーム9と平行な向きに垂直に固定する手段と
しても、図1に示したように連続隅肉溶接による接合が
用いられる。センタースチフナー6とベースプレート2
との溶接ビードを避けるため、支柱材7の切欠部8の下
端部に45゜方向の面取り部12が形成されている。こ
のガードレール用支柱は、図3に示したように、ベース
プレート2の四隅にボルト穴3を設け、予めコンクリー
ト基盤1に埋め込んで用意したアンカーボルト4を前記
ボルト穴3へ通し、同アンカーボルト4へダブルナット
5をねじ込み強く締付けることにより固定して設置され
る。As a means for vertically fixing the center stiffener 6 to the upper surface of the base plate 2 in a direction parallel to the beam 9, continuous fillet welding is used as shown in FIG. Center stiffener 6 and base plate 2
In order to avoid the welding bead with the chamfer, a chamfered portion 12 in the 45 ° direction is formed at the lower end portion of the notch portion 8 of the strut member 7. As shown in FIG. 3, this guardrail column has bolt holes 3 provided at four corners of a base plate 2, and anchor bolts 4 prepared by being embedded in a concrete base 1 in advance are passed through the bolt holes 3 to be attached to the anchor bolts 4. The double nut 5 is fixedly installed by screwing in and tightening strongly.
【0009】支柱材7の上部に設けてあるボルト穴13
を利用してビーム9を取付け、ガードレールが完成され
る。ビーム9は、前記ボルト穴13へ通したボルト10
及び取付座14を用いて取付けられ、ナット11を締付
けて強固に固定される。ビーム9は、図3のように1段
のみ取付ける場合のほか、必要に応じて上下平行に複数
段を取付ける場合もある。A bolt hole 13 provided in the upper portion of the support member 7
The beam 9 is attached by using to complete the guardrail. The beam 9 is a bolt 10 that is passed through the bolt hole 13.
And the mounting seat 14, and the nut 11 is tightened to be firmly fixed. The beam 9 may be attached in only one step as shown in FIG. 3, or may be attached in a plurality of steps in parallel vertically as needed.
【0010】本実施例の支柱材7は、ビーム9を1段取
付ける場合の高さを700mmとし、2段取付ける場合
の高さを900mmとする。外径が140mm、肉厚は
4.5mm位の円筒状鋼材を使用する。ベースプレート
2は、280×280mm、厚さ19mm位の鋼板とす
る。センタースチフナー6は、高さHが150mm、厚
さTは19mm位の鋼板の加工品で実施する。The column member 7 of this embodiment has a height of 700 mm when the beam 9 is attached in one step and a height of 900 mm when it is attached in two steps. A cylindrical steel material having an outer diameter of 140 mm and a wall thickness of about 4.5 mm is used. The base plate 2 is a steel plate having a thickness of 280 mm × 280 mm and a thickness of about 19 mm. The center stiffener 6 is a processed product of a steel plate having a height H of 150 mm and a thickness T of about 19 mm.
【0011】図4には、本実施例のガードレール用支柱
が車の衝突による衝撃力Fを受けた場合の変形状態を示
している。図4から分かるように、センタースチフナー
6が衝撃力の大きさに応じて塑性的な曲げ変形を生じて
支柱材7が傾いている。このときセンタースチフナー6
より後側の支柱材下端はベースプレート2との間で圧潰
を生じ、前側は単に口を開ける形になる。結局、センタ
ースチフナー6は固定端の単純曲げの形で曲げ変形を起
こすことになる。そのため図5に例示したように、セン
タースチフナー6の初期剛性が降伏限度に至ると、それ
以後は曲げ変形が進むにつれて大きな塑性エネルギー吸
収能力を発揮し、車の事故破損、乗員の負傷を可及的に
低減する効果を発揮する。センタースチフナー6の板厚
T及び高さH及び幅寸並びに支柱材7の下端とベースプ
レート2との間の隙間の大きさの適正な設計により、本
実施例のガードレール用支柱の初期剛性の大きさを調節
することができる。隙間を設けないか、隙間が小さい
と、初期剛性は大きくなり、隙間を大きく設けると初期
剛性はセンタースチフナー6の剛性そのものとして小さ
くなる。このことは、本実施例であるガードレール用支
柱に限らず、他の型式の防護柵(ガードパイプ型、ガー
ドケーブル型等)の支柱にも適用できるものである。FIG. 4 shows a deformed state of the guardrail support column of this embodiment when it receives an impact force F due to a vehicle collision. As it can be seen from FIG. 4, center stiffener 6 struts 7 caused a 塑 sexual bending deformation in accordance with the magnitude of the impact force is inclined. Center stiffener 6 at this time
The lower end of the strut material on the rear side collides with the base plate 2, and the front side is simply open. Eventually, the center stiffener 6 is bent and deformed in the form of simple bending of the fixed end. Therefore, as shown in FIG. 5, when the initial stiffness of the center stiffener 6 reaches the yield limit, the plastic stiffener exerts a large plastic energy absorption capability as the bending deformation progresses thereafter, and the vehicle may be damaged due to accidents or injured. Exerts the effect of reduction. The initial rigidity of the guardrail prop of the present embodiment is determined by properly designing the plate thickness T and height H and width of the center stiffener 6 and the size of the gap between the lower end of the post member 7 and the base plate 2. Can be adjusted. If the gap is not provided or the gap is small, the initial rigidity becomes large, and if the gap is made large, the initial rigidity becomes small as the rigidity of the center stiffener 6 itself. This is not limited to the guard rail support of this embodiment, but can be applied to other types of protection fences (guard pipe type, guard cable type, etc.).
【0012】従って、本発明の防護柵用支柱の剛性調節
は、センタースチフナー6の板厚Tと高さ(長さ)H及
び幅寸を基準として、更に支柱7の下端とベースプレー
ト2との隙間の大きさにより調節し設定することができ
る。Therefore, the rigidity of the prop for the protective fence of the present invention is adjusted with reference to the plate thickness T, height (length) H and width of the center stiffener 6, and the gap between the lower end of the prop 7 and the base plate 2. The size can be adjusted and set.
【0013】[0013]
【本発明が奏する効果】本発明に係る防護柵用支柱によ
れば、車の衝突による衝撃力をセンタースチフナーの曲
げに伴う塑性エネルギーとして吸収するから、センター
スチフナーの板厚T及び高さH及び幅寸、並びに支柱7
の下端とベースプレート2との隙間を適切に設計するこ
とにより、車の衝突による大小様々な衝撃力を受けて
も、平均してエネルギー吸収機能が良好に奏され、衝突
した車を撥ね返したり、逆に支柱自身が破壊されて防護
効果を喪失しまわぬように実施でき、乗員の可及的安全
性を図ることができ、二次災害を防ぐことにも貢献す
る。According to fences upright according to the present invention The present invention effects achieved by the ## from absorbing the impact force by vehicle crash as bending accompanied cormorants塑 energy to the center stiffener plate thickness T and the height of the center stiffener H and width, and support 7
By properly designing the gap between the lower end of the base plate 2 and the base plate 2, even if a large or small impact force due to a collision of a vehicle is received, the energy absorbing function is excellently performed on average, and the collision vehicle is repelled, On the contrary, it can be implemented so that the prop itself is not destroyed and the protective effect is not lost, the safety of the occupants can be increased as much as possible, and it also contributes to the prevention of secondary accidents.
【0014】また、初期剛性を調節することができるこ
とから、想定される事故状況に合わせた設計法を容易に
実施できる。使用する材料及びその加工に関しても、従
来一般に用いられているものに比較して、コストが安
く、施工性や汎用性にも優れている。Further, since the initial rigidity can be adjusted, it is possible to easily carry out the design method according to the expected accident situation. As for the materials used and the processing thereof, the cost is low and the workability and versatility are excellent as compared with those conventionally used.
【図1】本発明に係る防護柵用支柱の斜視図である。FIG. 1 is a perspective view of a protective fence post according to the present invention.
【図2】Aは、センタースチフナーと支柱材の切欠部と
の接合前の側面図、Bは、接合後の側面図である。FIG. 2A is a side view before joining the center stiffener and the notch of the support member, and FIG. 2B is a side view after joining.
【図3】本発明に係る防護柵(ガードレール)用支柱の
実施例を示した側面図である。FIG. 3 is a side view showing an embodiment of a prop for a protective fence (guard rail) according to the present invention.
【図4】本発明に係る防護柵(ガードレール)用支柱に
強い衝突による大きな衝撃力が与えられた時の変形状態
を示した斜視図である。FIG. 4 is a perspective view showing a deformed state when a large impact force due to a strong collision is applied to the protection fence (guard rail) column according to the present invention.
【図5】本発明に係る防護柵(ガードレール)用支柱に
おける荷重−変位線図である。FIG. 5 is a load-displacement diagram of a support for a guard fence according to the present invention.
【図6】従来の防護柵(ガードレール)用支柱における
荷重−変位線図である。FIG. 6 is a load-displacement diagram of a conventional prop for a guard fence.
1 コンクリート基盤 2 ベースプレート 9 ビーム 6 センタースチフナー 7 支柱材 H センタースチフナーの高さ T センタースチフナーの板厚相当幅 8 切欠部 1 concrete base 2 base plate 9 beams 6 Center stiffener 7 Support material H Center stiffener height Width equivalent to the plate thickness of the T center stiffener 8 notches
───────────────────────────────────────────────────── フロントページの続き (73)特許権者 000003528 東京製綱株式会社 東京都中央区日本橋室町2丁目3番14号 (73)特許権者 000231110 JFE建材株式会社 兵庫県神戸市中央区北本町通1丁目1番 28号 (72)発明者 梶 聡 神奈川県川崎市川崎区東門前3−10−16 (72)発明者 安田 誠宏 大阪府大阪市西淀川区歌島3−8−4− 103 (72)発明者 遠藤 哲弥 兵庫県尼崎市元浜町1−26 (72)発明者 河野 益士 兵庫県三田市高次2−15−23−201 (72)発明者 三原 浩稔 東京都中央区日本橋室町2−3−1 (72)発明者 堀川 紀幸 埼玉県上尾市中妻2−9−3 (56)参考文献 実開 平3−18216(JP,U) 実開 平3−2013(JP,U) 実開 平1−75117(JP,U) 実開 昭47−27434(JP,U) 実開 昭61−76811(JP,U) 特公 昭42−6707(JP,B1) 実公 平5−2654(JP,Y2) 実公 平4−7218(JP,Y2) 実公 昭50−30183(JP,Y1) (58)調査した分野(Int.Cl.7,DB名) E01F 15/00 - 15/06 ─────────────────────────────────────────────────── ─── Continuation of the front page (73) Patent holder 000003528 Tokyo Rope Co., Ltd. 2-33-1 Nihombashi Muromachi, Chuo-ku, Tokyo (73) Patent holder 000231110 JFE Construction Materials Co., Ltd. Kitahonmachi, Chuo-ku, Kobe-shi, Hyogo 1-28-12 (72) Inventor Satoshi Kaji 3-10-16 Higashimonmae, Kawasaki-ku, Kawasaki-shi, Kanagawa (72) Masahiro Yasuda 3-8-4-103 (72) Utajima, Nishiyodogawa-ku, Osaka-shi, Osaka ) Inventor Tetsuya Endo 1-26 Motohamacho, Amagasaki City, Hyogo Prefecture (72) Inventor Masushi Kono 2-15-23-201 Takatsugu, Mita City, Hyogo Prefecture (72) Hirotoshi Mihara Nihonbashi Muromachi, Chuo-ku, Tokyo 2 3-1 (72) Inventor Noriyuki Horikawa 2-9-3 Nakatsuma, Ageo City, Saitama Prefecture (56) References Kaikaihei 3-18216 (JP, U) Sanaihei 3-2013 (JP, U) Actual Kaihei 1-75117 (JP, U) Actually open 47-2 7434 (JP, U) Actually open 61-76811 (JP, U) Special public 42-6707 (JP, B1) Actual public 5-2654 (JP, Y2) Actual public 4-7218 (JP, Y2) Jikken 50-30183 (JP, Y1) (58) Fields investigated (Int.Cl. 7 , DB name) E01F 15/00-15/06
Claims (2)
伴う塑性エネルギーとして吸収する防護柵用支柱であっ
て、 地面のコンクリート基盤上に固定されるベースプレート
の上面にビーム、パイプ又はワイヤーケーブル等の柵用
材と平行な向きに垂直に固定したセンタースチフナーが
設けられ、筒状の支柱材にはその下端部から垂直方向上
向きに前記センタースチフナーの高さ及び板厚相当幅の
切欠部が設けられ、該切欠部が前記センタースチフナー
に嵌め込まれ、前記切欠部と前記センタースチフナーと
の接触縁部が溶接により接合され、支柱材の下端とベー
スプレートとは溶接していないことを特徴とする、防護
柵用支柱。 1. A prop for a protective fence that absorbs an impact force caused by a collision of a car as plastic energy associated with plastic deformation of the prop, and a beam, a pipe or a wire cable is provided on an upper surface of a base plate fixed on a concrete foundation of the ground. Center stiffeners fixed vertically in a direction parallel to the fence material, etc. are provided, and the cylindrical strut material is provided with a notch having a height equivalent to the center stiffener and a width equivalent to the plate thickness vertically upward from the lower end thereof. The notch is the center stiffener
Fitted into the contact edge portion of the notch and the center stiffener is welded, the lower end of the strut member and base
A prop for a protective fence, which is not welded to a splate.
接触させるか又は少し離していることを特徴とする、請A contract, characterized by being in contact or slightly separated
求項1に記載した防護柵用支柱。The support fence support described in claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28242297A JP3507974B2 (en) | 1997-10-15 | 1997-10-15 | Support fence post |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28242297A JP3507974B2 (en) | 1997-10-15 | 1997-10-15 | Support fence post |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11117245A JPH11117245A (en) | 1999-04-27 |
JP3507974B2 true JP3507974B2 (en) | 2004-03-15 |
Family
ID=17652212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28242297A Expired - Lifetime JP3507974B2 (en) | 1997-10-15 | 1997-10-15 | Support fence post |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3507974B2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3411888B2 (en) * | 1999-08-26 | 2003-06-03 | 新日本製鐵株式会社 | Joint structure |
AT8530U1 (en) * | 2004-10-25 | 2006-09-15 | Voest Alpine Krems Finaltech | STEER FÜR LEITEINRICHTUNG |
JP5398150B2 (en) * | 2007-01-25 | 2014-01-29 | Jfe建材株式会社 | Tubular prop |
DE102007017876B4 (en) * | 2007-04-13 | 2021-06-24 | Sew-Eurodrive Gmbh & Co Kg | Oil catcher, gearbox and procedure |
ES2293860B1 (en) | 2007-10-01 | 2009-02-01 | Hierros Y Aplanaciones, S.A. (Hiasa) | DIRECT FUSE ANCHOR SYSTEM FOR SUPPORT POST OF A SAFETY OR PRETIL BARRIER ON A RIGID GROUND. |
JP5271738B2 (en) * | 2009-02-05 | 2013-08-21 | 積水化学工業株式会社 | Building unit and unit building |
JP5988825B2 (en) * | 2012-10-22 | 2016-09-07 | エフエムレーリング株式会社 | Guard post |
CN104818693B (en) * | 2015-05-27 | 2016-09-07 | 江苏省电力公司扬州供电公司 | A kind of combination water-proof base |
JP6652461B2 (en) * | 2016-08-02 | 2020-02-26 | 積水樹脂株式会社 | Bridge fence |
-
1997
- 1997-10-15 JP JP28242297A patent/JP3507974B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH11117245A (en) | 1999-04-27 |
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