JPS5824005A - Apparatus for dividing precipitation force of snow accumulated on bridge structure - Google Patents
Apparatus for dividing precipitation force of snow accumulated on bridge structureInfo
- Publication number
- JPS5824005A JPS5824005A JP12205681A JP12205681A JPS5824005A JP S5824005 A JPS5824005 A JP S5824005A JP 12205681 A JP12205681 A JP 12205681A JP 12205681 A JP12205681 A JP 12205681A JP S5824005 A JPS5824005 A JP S5824005A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- snow
- fence
- dividing
- bridge structure
- 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.)
- Granted
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は雪国地帯における橋梁的構造物、殊に豪雪地帯
における山岳道路の橋梁を雪害より保護しようとするも
のである。山岳道路における橋梁は冬期間は降雪と吹雪
のため除雪車も入れず殆んどが放置されたま＼であり、
そのため谷間の積雪と橋梁上の積雪が連続して膨大な堆
雪となり、この堆雪は長い橋梁の場合は風上側の橋梁の
端部を、短い橋梁の場合は全体を埋設してしまう。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to protect bridge-like structures in snowy regions, particularly bridges on mountain roads in heavy snowy regions, from snow damage. Most of the bridges on mountain roads are left abandoned during the winter due to snowfall and blizzards, with no snow plows available.
As a result, the snow in the valley and the snow on the bridges continue to form a huge pile of snow, which buries the windward end of the bridge if it is a long bridge, or buries the entire bridge if it is short.
ところでこの堆雪は融雪期になると沈降力を増し、しか
も雪の粘着性によって橋梁の積雪のみならず周囲の積雪
の沈降力と斜面雪圧の合力が生じ、そのため橋梁上にか
＼る重荷は橋梁上のみの積雪荷重のみならず周囲積雪深
の数拾倍から地形によっては数百倍の重さとなり、しか
もこの沈降力による荷重は地形、風向等によって偏った
偏荷重となる都合が多いのマ橋梁を損傷することが多く
道路管理上大きな問題となっている。By the way, this accumulated snow increases its settling force during the snow melting season, and due to the stickiness of the snow, a combined force of the settling force of not only the snow on the bridge but also the surrounding snow and snow pressure on the slope occurs, and as a result, the weight on the bridge is reduced. The snow load not only on the bridge but also several tens to hundreds of times heavier than the surrounding snow depth depending on the topography, and the load due to this settling force is often an uneven load depending on the topography, wind direction, etc. This often causes damage to bridges, creating a major problem for road management.
本発明は叙上のような現状を解決すべく今冬期試験、研
究を重ねた結果橋梁の両側に下部防護柵と分断柵とを立
設することにより橋梁上の積雪と周囲の積雪の沈降力と
が分断され、橋梁には橋梁上の積雪荷重のみがか＼るよ
うになり橋梁が安全に保護されることが分った。As a result of repeated tests and research this winter in order to solve the current situation as described above, the present invention has been developed by erecting lower protection fences and dividing fences on both sides of the bridge, thereby reducing the settling force of the snow on the bridge and the surrounding snow. It was found that the bridge is now separated, and only the snow load on the bridge is applied to the bridge, thereby safely protecting the bridge.
本発明を図示の実施例により詳記すると谷間を横切るよ
う架設された橋梁（１）の風上側の端部（２）における
橋桁（３）の側部に該橋桁（３）部の側面を防護する下
部防護柵（５）を設置するが、この下部防護柵（５）は
先ず橋桁（３）の上縁の高さの支柱（６）（６Ｙ・・・
を斜面（４）に立設し、この支柱（６） （６５・・・
間の上部には横杆（７） （７５’とワイヤー（ｓ）
（ｓｇ・・・を介して金網（９）（９５を張設してあり
、この金網ｆ９） （９１によって橋桁（３）への雷の
付着を防止すると共に、側面雪圧から橋梁（１）を防護
する。The present invention will be described in detail with reference to the illustrated embodiment. The side surface of the bridge girder (3) at the windward end (2) of a bridge (1) built across a valley is protected. A lower protective fence (5) will be installed, but this lower protective fence (5) will first be constructed of pillars (6) (6Y...) at the height of the upper edge of the bridge girder (3).
is erected on the slope (4), and this support (6) (65...
At the top of the space there are horizontal rods (7) (75' and wires (s)
(A wire mesh (9) (95 is stretched through sg..., and this wire mesh f9) (91 prevents lightning from attaching to the bridge girder (3) and protects the bridge (1) from side snow pressure. protect.
次にこの下部防護柵（５）の支柱（６） （６５・・・
に分析器ａυｎ（ｌを着脱自在に取付けるが、分断柵ａ
υ側は支柱（６） （６５Ｋ ｍ脱自在）柵柱（１１）
ａｌｔ ・・・と柵柱（１１） （ＩＩ’） ・ｌ１
Ｊ１に着脱自在に横架した横柵杆α’ａａ２Ｉ・・・と
横柵杆α２αノ・・・に着脱自在の短柵状の橋片餞（１
ｇ・・・とよりなる。柵柱側０］５・・・を支柱（６”
ｌ （６１・・・に着脱自在に取付ける手段としては支
柱（ａ）（ａ５・・・の上端部外側に取付金具α荀を設
けて柵柱（１１１ａｎ・・・の基端を挿脱自在とし、柵
柱α１１ａｆＪ・・・の中間は橋梁（１）の欄干（１勺
に角材σｅを介して針金αＤにより固定する。柵柱（１
１） （１１５・・・の高さは橋梁（１）上の最大積雪
高以上にしておく。横柵杆（１２（ｌΔ・・・Ｋ柵片（
１３） （ＩＩ・・・を固定する手段としては針金（１
８１によって結着するが橋片（１漕（ｘｌ・・・は透過
率が４０％位になるよう間隔を設けておく。Next, the pillars (6) (65...) of this lower protective fence (5)
The analyzer aυn (l) is removably attached to the
The υ side is a post (6) (65km removable) fence post (11)
alt ... and fence post (11) (II') ・l1
Short fence-like bridge pieces (1
g... and so on. Fence post side 0] 5… to the post (6”
l (As a means of removably attaching it to the fence post (61...), install a mounting bracket α on the outside of the upper end of the post (a) (a5...), and make the base end of the fence post (111an...) detachable. , the middle of the fence posts α11afJ... is fixed to the railing (1) of the bridge (1) with a wire αD through the square timber σe.
1) The height of (115...) should be greater than the maximum snow accumulation height on the bridge (1).The horizontal fence rod (12(lΔ...K fence piece (
13) As a means of fixing (II...), wire (1
81, but the bridge pieces (1 row (xl...) are spaced apart so that the transmittance is about 40%.
この橋片（１３）ｆｔ３）・・・の高さは橋梁（１）の
欄干α団の下端位置より橋梁（１）上の予想される最大
積雪高以上の高さであることが好ましいが、通常融雪期
になると締り雪となって積雪高が下がり、その時期より
沈降力を増してくるので厳寒期の積雪高よりや＼低くと
も良い。The height of this bridge piece (13) ft3) is preferably higher than the expected maximum snowfall height on the bridge (1) from the lower end of the parapet α group of the bridge (1), Normally, during the snow melting season, the snow becomes compacted and the height of the snowfall decreases, and the settling power increases from that time onwards, so it is better to be a little lower than the height of the snowfall during the severe cold season.
尚地形、冬期主風向等の詰条件により橋梁の片側にのみ
堆憤のある場合は橋梁の片側にのみ下部防護柵、分析器
を設置すれば良い。橋梁（１）全体が埋設するようなと
ころはほぼ全長にわたって下部防護柵、分析器を設ける
・
本発明は以上の如く具現されるものであるがその作用効
果を説明すると橋梁（１）上の積雪及び周囲の積雪は一
体となって沈降しようとするも橋梁上の積雪と周囲の積
雪とは分析器（１（［１０１によって第２図の如く橋梁
（１）上の積雪体）と左右外側部の積雪（Ｂ） （縛と
に分断され、且下部防護柵（５）によって橋梁（１）の
側部は側面雪圧の影響を受けることがなく、橋梁（１）
にか＼る荷重は橋梁（１）上の積雪荷重のみであり、加
えて垂直荷重のみであ ８−
りて橋梁（１）は損傷することなく安全に管理される。If there is sedimentation on only one side of the bridge due to terrain conditions, main winter wind direction, etc., it is only necessary to install the lower protective fence and analyzer on one side of the bridge. In areas where the entire bridge (1) is buried, a lower protective fence and an analyzer are provided along almost the entire length.The present invention is embodied as described above, but to explain its effects, snow accumulation on the bridge (1) The snow on the bridge and the surrounding snow tend to settle together, but the snow on the bridge and the snow on the surrounding area are separated by the analyzer (1 (by [101, the snow on the bridge (1) as shown in Figure 2]) and the left and right outer parts. Snowfall (B)
The only load on the bridge is the snow load on the bridge (1), and in addition, it is only the vertical load, so the bridge (1) can be managed safely without being damaged.
下部防護柵（５）に金Ｉｔ！！（９） （９１を使用し
たこと即ち透過率を有すること、及び分析器Ｑｌｆｕ＋
ｆの柵体ｅｌｌ）Ｉ・・・に間隔を設けて透過率を持た
せたことは風圧による構築物の耐久性と構築物の経済性
を加味したものである。It's gold on the lower protective fence (5)! ! (9) (Using 91, that is, having transmittance, and analyzer Qlfu+
The reason why the fence body f (ell) I... was provided with intervals to provide transmittance was taken into account the durability of the structure due to wind pressure and the economic efficiency of the structure.
冬期間以外の季節には分析器ｆｉｎ）（１（ｊは容易に
分解でき、自然の美感を損なうことがない。In seasons other than winter, the analyzer fin) (1 (j) can be easily disassembled and does not spoil the natural beauty.
第１図は本発明装置の側面説明図、第２図は同正面縦断
面図で第８図は要部の部分拡大図である。
（１）は橋梁、 （３）は橋桁、
（４）は下部防護柵、 （６）（６５・・・は支柱、（
９） （９ｆ ｔｄ合金網 （ＩＩ（１１６：を分
析器、（１１） （１１５・ｈ柵柱、 （Ｉ３１０１・
・・ハ柵体。
４−FIG. 1 is an explanatory side view of the device of the present invention, FIG. 2 is a front vertical sectional view thereof, and FIG. 8 is a partially enlarged view of the main parts. (1) is the bridge, (3) is the bridge girder, (4) is the lower protection fence, (6) (65... is the support column, (
9) (9f td alloy net (II (116: analyzer), (11) (115・h fence post, (I3101・
・Ha fence body. 4-
Claims (1)
両側部に該橋梁的構造物の側面を防護する下部防護柵と
、該下部防護柵の支柱に当該橋梁的構造物上の積雪と外
部の積雪とを分断する高さの分断柵を取外し自在に立設
した橋梁的構造物上積雪の沈降力分断装置。On one or both sides of a bridge-like structure that is easily affected by the settling force of snow, there is a lower protection fence that protects the side of the bridge-like structure, and the supports of the lower protection fence are installed on the bridge-like structure. A device for dividing the settling force of snow on a bridge-like structure, which has a removable height separating fence that separates snow from outside snow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205681A JPS5824005A (en) | 1981-08-04 | 1981-08-04 | Apparatus for dividing precipitation force of snow accumulated on bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205681A JPS5824005A (en) | 1981-08-04 | 1981-08-04 | Apparatus for dividing precipitation force of snow accumulated on bridge structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5824005A true JPS5824005A (en) | 1983-02-12 |
| JPS633082B2 JPS633082B2 (en) | 1988-01-21 |
Family
ID=14826520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12205681A Granted JPS5824005A (en) | 1981-08-04 | 1981-08-04 | Apparatus for dividing precipitation force of snow accumulated on bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000043730A1 (en) | 1999-01-20 | 2000-07-27 | Lightlab Imaging | Methods and apparatus for high-speed longitudinal scanning in imaging systems |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100630A (en) * | 1977-02-14 | 1978-09-02 | Teruo Adachi | Snowwplogh device |
-
1981
- 1981-08-04 JP JP12205681A patent/JPS5824005A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100630A (en) * | 1977-02-14 | 1978-09-02 | Teruo Adachi | Snowwplogh device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000043730A1 (en) | 1999-01-20 | 2000-07-27 | Lightlab Imaging | Methods and apparatus for high-speed longitudinal scanning in imaging systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS633082B2 (en) | 1988-01-21 |
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