JPH0611969B2 - Protection ▲ fence ▼ prop - Google Patents
Protection ▲ fence ▼ propInfo
- Publication number
- JPH0611969B2 JPH0611969B2 JP5687689A JP5687689A JPH0611969B2 JP H0611969 B2 JPH0611969 B2 JP H0611969B2 JP 5687689 A JP5687689 A JP 5687689A JP 5687689 A JP5687689 A JP 5687689A JP H0611969 B2 JPH0611969 B2 JP H0611969B2
- Authority
- JP
- Japan
- Prior art keywords
- anchor bolts
- road surface
- spacer
- road
- nut
- 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
-
- 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
Description
【発明の詳細な説明】 本発明は車輌等が事故により道路から逸脱することを防
護する柵の支柱に於て、二次災害となる乗員えの衝撃を
緩和する目的で、設定された撃力で永久変形を行はし
め、且つ一定量の変形に止め、安呈を確保するものであ
る。更に本発明は、支柱本体は剛構造とし、そのアンカ
ーボルトによる支持する構成に創意をなし、こゝに別個
の永久変形を行う部材を組合せてなるものである。本発
明と目的を同じくする従来技術を説明すると、支柱その
ものを設定負荷で塑性変形させるもので（剛体設計でな
く、塑性設計）、この場合、設定負荷を小さく見積ると
破壊がそのまゝ進行して変形量が設定値を越えてしまう
欠点を有する。次に本発明を図面によって説明すると、
１は鋳造、鍛造等になる支柱本体、2.2′は横梁、３は
道路面と接する取付面、４は段部を構成して道路面との
間に空隙を有する取付面、5.5′は透孔、6、6′はアンカ
ーボルト、7a.7bは第５図に詳記するスペーサー、８は
ナット、尚スペーサー7a.7bは二段パイプ状をなし、ア
ンカーボルト挿通孔９、上段外径部10に対して若干小径
の下段内径部11、セン断予想部12からなるものである。
又第４図に従来方式例を示すもので、支柱本体13は塑性
変形を局限するため、肉ぬすみ14を有するものである。
尚15を道路面とする。次に本発明の作用効果について説
明する。第１番に第３図により段付部3.4.について述べ
ると、これがない構成ｂ図によると、横梁２に対する負
荷Ｐを加えると変形のモーメント中心点はＢ点であり、
アンカーボルト６の位置での変位量d2となる。これに対
して本発明構成ａ図によるとモーメント中心点Ａは支柱
１の取付部中心でアンカーボルト６の位置での変位量d1
はd2に対して半分以下となる。しかしてアンカーボルト
６′の位置での変位量d′1はd1と同一とすることを得
る。次に第５図でスペーサー7a、7bの機能を説明する
と、負荷Ｆが作用すると設定値でセン断予想部12がセン
断破壊を起し、ついで上段部が下段部に食い込んで上段
外径部10が下段内径部11より若干大なるため押拡げなが
らｂ図状態となり、高さd1で不動となるものである。従
来方式は第４図で示す如く肉ぬすみ部14で塑性変形を生
じるものである。以上の如くであるから本発明は大なる
衝撃力Ｐを受けた際、そのエネルギーをスペーサー7a、7
bの破壊により吸収するものであり、しかもそのスペー
サー7a、7bの破壊変形量を比較的小に抑えることを得、
且つ変形量の限定を行うため支柱全体の変位δを設定す
ることが出来て防護柵本来の機能である安全保証が出
来、しかも支柱本体１は剛体設計で造り易く、技術的価
値高いものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is a strut of a fence that protects a vehicle or the like from departing from a road due to an accident. With this, permanent deformation is carried out, and only a certain amount of deformation is stopped to ensure a comfortable presentation. Further, in the present invention, the strut main body has a rigid structure, and the structure in which the strut body is supported by the anchor bolts has an original idea, and a separate permanent deformation member is combined therewith. A conventional technique having the same purpose as that of the present invention will be described. The struts themselves are plastically deformed by a set load (not a rigid body design, but a plastic design). In this case, if the set load is estimated to be small, the fracture will proceed to that extent. As a result, the amount of deformation exceeds the set value. Next, the present invention will be described with reference to the drawings.
1 is a main body of a pillar to be cast or forged, 2.2 'is a cross beam, 3 is a mounting surface in contact with a road surface, 4 is a mounting surface having a gap between the step surface and a road surface, and 5.5' is a through hole , 6 and 6 ′ are anchor bolts, 7a.7b is a spacer detailed in FIG. 5, 8 is a nut, and spacers 7a.7b are two-stage pipe-shaped. Anchor bolt insertion hole 9 and upper stage outer diameter portion 10 are provided. On the other hand, the lower stage inner diameter portion 11 and the disconnection prediction portion 12 are slightly smaller in diameter.
Further, FIG. 4 shows an example of a conventional method, in which the column main body 13 has a meat crevice 14 in order to limit plastic deformation.
In addition, 15 is the road surface. Next, the function and effect of the present invention will be described. First, referring to FIG. 3 for the stepped portion 3.4. According to the configuration b diagram without this, when a load P is applied to the cross beam 2, the center point of the moment of deformation is point B,
The displacement amount at the position of the anchor bolt 6 is d 2 . On the other hand, according to the configuration a of the present invention, the moment center point A is the displacement amount d 1 at the position of the anchor bolt 6 at the center of the mounting portion of the column 1.
Is less than half of d 2 . Thus 1 'displacement amount d at the location of the' anchor bolt 6 get to be the same as d 1. Next, the function of the spacers 7a and 7b will be described with reference to FIG. 5. When the load F acts, the shear breakage predicting portion 12 causes shear breakage at the set value, and then the upper step portion bites into the lower step portion and the upper step outer diameter portion. 10 slightly becomes押拡down while b view state for large consisting lower inner diameter portion 11, and serves as a stationary height d 1. In the conventional method, as shown in FIG. 4, plastic deformation is generated in the thinned portion 14. As described above, according to the present invention, when a large impact force P is applied, the energy of the spacers 7a, 7a
It is absorbed by the breakage of b, and the amount of breakage deformation of the spacers 7a, 7b can be suppressed to a relatively small amount,
In addition, since the deformation amount is limited, the displacement δ of the entire strut can be set, and the safety guarantee that is the original function of the protective fence can be achieved. Moreover, the strut body 1 is a rigid body design that is easy to build and has a high technical value. .
第１図は本発明を実施せる全体斜視図、第２図はその要
部の一部断面側面図、第３図ａｂは本発明の作用を説明
する側面略図、第４図は従来構成の側面略図、第５図ａ
ｂは部品実施例の側断面図を示す。 1.……支柱本体 2.2′……横梁 3.4……取付面 5.5′……透孔 6.6′……アンカーボルト 7a7b……スペーサー 13……支柱本体FIG. 1 is an overall perspective view for carrying out the present invention, FIG. 2 is a partial cross-sectional side view of an essential part thereof, FIG. 3 ab is a schematic side view illustrating the operation of the present invention, and FIG. 4 is a side view of a conventional configuration. Schematic, Figure 5a
b shows a side sectional view of a component embodiment. 1. …… Strut body 2.2 ′ …… Straight beam 3.4 …… Mounting surface 5.5 ′ …… Through hole 6.6 ′ …… Anchor bolt 7a7b …… Spacer 13 …… Strut body
Claims (1)
し、アンカーボルトで支持される立柱の取付面を２分段
付とし、その道路側半分を路面と接地状態とする時、外
側半分を路面に対して隙間を有すべく切欠き、該段付取
付面のそれぞれにアンカーボルトを挿通する透孔を構成
し、道路側の路面接地取付部のアンカーボルトには該取
付部の上面に予め設定された圧縮力により破壊して高さ
を減じるスペーサーを介してナットで取付け、外側の切
欠部のアンカーボルトは該切欠部に前記と同一構成をな
すスペーサーを挿通し、上部よりナットで取付けるべく
なした事を特徴とする防護柵支柱。1. A rigid structure having a structure for supporting a lateral beam, wherein the mounting surface of a vertical column supported by anchor bolts is stepped into two parts, and when the road side half is in contact with the road surface, the outside Half of it is cut out so as to have a gap with respect to the road surface, and through holes through which anchor bolts are inserted are formed in each of the stepped mounting surfaces, and the anchor bolts of the road surface grounding mounting portion on the road side have the upper surface of the mounting portion. It is attached with a nut through a spacer that breaks by a preset compression force to reduce the height, and the anchor bolt of the outer cutout is inserted through the spacer having the same structure as the above into the cutout, and the nut is inserted from the top. A protective fence post that is characterized by what it was designed to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5687689A JPH0611969B2 (en) | 1989-03-08 | 1989-03-08 | Protection ▲ fence ▼ prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5687689A JPH0611969B2 (en) | 1989-03-08 | 1989-03-08 | Protection ▲ fence ▼ prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02236306A JPH02236306A (en) | 1990-09-19 |
| JPH0611969B2 true JPH0611969B2 (en) | 1994-02-16 |
Family
ID=13039623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5687689A Expired - Lifetime JPH0611969B2 (en) | 1989-03-08 | 1989-03-08 | Protection ▲ fence ▼ prop |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611969B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100511457B1 (en) * | 2002-11-05 | 2005-08-31 | 박영기 | guard rail haning a shock absorbing function |
| 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. |
| JP5335257B2 (en) * | 2008-03-04 | 2013-11-06 | 積水樹脂株式会社 | Guard fence support structure |
| US8444343B2 (en) * | 2011-05-27 | 2013-05-21 | Mccue Corporation | Impact-absorbing anchoring assembly for protective barrier |
| WO2015139042A1 (en) * | 2014-03-14 | 2015-09-17 | Mccue Corporation | Impact absorbing barrier |
| DE102021118008A1 (en) | 2021-07-13 | 2023-01-19 | Volkmann & Rossbach GmbH | Post arrangement for a safety guard |
-
1989
- 1989-03-08 JP JP5687689A patent/JPH0611969B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02236306A (en) | 1990-09-19 |
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