JPH0734418A - Shed shock absorber - Google Patents
Shed shock absorberInfo
- Publication number
- JPH0734418A JPH0734418A JP17675493A JP17675493A JPH0734418A JP H0734418 A JPH0734418 A JP H0734418A JP 17675493 A JP17675493 A JP 17675493A JP 17675493 A JP17675493 A JP 17675493A JP H0734418 A JPH0734418 A JP H0734418A
- Authority
- JP
- Japan
- Prior art keywords
- shed
- leg
- impact force
- foundation concrete
- foundation
- 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.)
- Pending
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、山地に用いるシェッド
の衝撃力緩和装置に関するものであるBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shed impact force relaxation device used in mountainous areas.
【０００２】[0002]
【従来の技術】山地の崖際の道路等では落石等による危
害を防止するためにロックシェッド（落石覆工）を設け
る。ロックシェッドは多雪地帯の山地におけるスノーシ
ェッドを兼ねることもある。シェッドとはこれらを包括
したものをいう。以下ロックシェッドを例にあげて説明
する。2. Description of the Related Art A rock shed (rockfall lining) is provided on a road near a cliff in a mountainous area to prevent damage caused by rockfalls. The Rock Shed may double as a Snow Shed in the mountains of the snowy area. The shed is a comprehensive set of these. The lock shed will be described below as an example.
【０００３】ロックシェッドは崩落や落石荷重に対して
種々の研究調査から設計荷重を定め、これに耐えるよう
に設計されている。しかし、無限に大きな耐力を持たせ
ることは不可能で、予想を絶する大崩落や、大塊石の局
部衝撃があった場合には倒壊する場合がある。このよう
な問題に対して、局部破壊が生じないようにロックシェ
ッドの屋根上に緩衝材を配設するなどの工夫が凝らされ
ている。しかし、ロックシェッドは例えばプレストレス
トコンクリート等によるラーメン構造になっているの
で、落石等に対して変形が小さく、大荷重が構造体の局
部に作用することを避けることができない。The lock shed is designed to withstand a collapse load and a rock fall load by designing a design load from various research and investigations. However, it is impossible to have infinitely large proof strength, and it may collapse if there is an unexpected collapse or if there is a local impact of a large block. To deal with such a problem, various measures such as disposing a cushioning material on the roof of the lock shed so as not to cause local destruction have been made. However, since the rock shed has a rigid frame structure made of, for example, prestressed concrete or the like, it is inevitable that deformation is small with respect to falling rocks or the like, and a large load acts on a local portion of the structure.
【０００４】[0004]
【発明が解決しようとする課題】ロックシェッドの従来
の構造は、基礎に脚柱を剛結された剛構造物が落石等の
衝撃力を受止め、各部材に生ずる応力度がその部材の許
容値内に収まるように設計されていた。すなわち、構造
体が堅固な基礎に剛結されているので、構造体が衝撃力
を１００％受け止めるため、構成部材断面等を大きく設
計しなければならなかった。In the conventional structure of Rockshed, a rigid structure in which a pedestal is rigidly connected to a foundation receives an impact force such as a rock fall, and the stress level generated in each member allows the member. It was designed to fit within the value. That is, since the structure is rigidly connected to the solid foundation, the structure receives 100% of the impact force, so that it is necessary to design the cross-section of the component members and the like to be large.
【０００５】本発明はこのような問題点を解決したロッ
クシェッドの衝撃力緩和装置を提供することを目的とす
るものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a shock absorbing device for a rock shed which solves the above problems.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記問題点を
解決するために提案されたもので、シェッドの脚柱の下
端を基礎コンクリート中に上下動可能に建込み、この脚
柱下端と基礎コンクリートとの間に緩衝装置を設けたこ
とを特徴とするシェッドの衝撃力緩和装置である。DISCLOSURE OF THE INVENTION The present invention has been proposed to solve the above problems, in which the lower end of the pedestal of the shed is movably installed in the foundation concrete, and It is a shed's impact force alleviation device characterized in that a shock absorber is provided between the concrete and the foundation.
【０００７】[0007]
【作用】緩衝装置としては、ゴム等の弾性材料を介装し
たもの、コイルばね、板ばねのような金属ばね等の弾性
材を介装するもの、流体圧ダンパを用いるもの、これら
を組み合わせたもの等を用いる。緩衝装置はロックシェ
ッドが衝撃力を受けたとき、衝撃を緩和し、構造体を沈
下させて衝撃エネルギーを吸収する。As the shock absorber, an elastic material such as rubber is interposed, an elastic material such as a coil spring or a metal spring such as a leaf spring is interposed, a fluid pressure damper is used, or a combination thereof is used. Use things etc. The shock absorber cushions the shock when the Rockshed receives an impact force, sinking the structure and absorbing the impact energy.
【０００８】したがって、構造体の各部材が受持つ衝撃
力を減少させることができる。その結果、構造体の構成
部材断面を小さくすることができ、また部材内に配置す
る鉄筋やＰＣ鋼材の量を低減することができる。Therefore, the impact force received by each member of the structure can be reduced. As a result, it is possible to reduce the cross section of the structural member of the structure, and it is also possible to reduce the amount of reinforcing bars and PC steel material arranged in the member.
【０００９】[0009]
【実施例】図１〜図４に本発明の実施例を示した。山地
の崖際の道路２を覆うロックシェッド１は、脚柱３と梁
４とを剛結してラーメン構造とし、屋根５を設けて落石
１０等に対して道路を保護する。脚柱３は、従来は基礎
６に剛結されていた。EXAMPLES Examples of the present invention are shown in FIGS. The rock shed 1 that covers the road 2 near the cliff of the mountainous region is rigidly connected to the pedestal 3 and the beam 4 to form a ramen structure, and the roof 5 is provided to protect the road against falling rocks 10 and the like. The pedestal 3 is conventionally rigidly connected to the foundation 6.
【００１０】本発明では、脚柱３の下端を基礎コンクリ
ート６中に挿入して上下動可能に構成し、この脚柱３の
下端と基礎コンクリート６との間に緩衝装置を設けた。
緩衝装置の具体例として、図２には、多数枚のゴム板７
を緩衝材として介装した例を示した。図３には、板ばね
８を用いた緩衝装置を示した。図４には流体ダンパ９を
有する緩衝装置を示した。In the present invention, the lower end of the pillar 3 is inserted into the basic concrete 6 so as to be vertically movable, and a shock absorber is provided between the lower end of the pillar 3 and the basic concrete 6.
As a concrete example of the shock absorber, a large number of rubber plates 7 are shown in FIG.
An example in which is used as a cushioning material is shown. FIG. 3 shows a shock absorber using the leaf spring 8. FIG. 4 shows a shock absorber having the fluid damper 9.
【００１１】従来のロックシェッドは大塊の落石１０が
矢印１１のように落下して衝撃力を受けた時、屋根５及
び桁４が大きな衝撃力を受けるが、実施例では、脚柱３
が沈下し、ロックシェッド全体が変位するので、衝撃荷
重が緩和され、分散される。従って、ロックシェッドの
部材の断面を従来より小さく設計することができる。ま
た、従来の設計であれば、安全度が著しく向上する。In the conventional rock shed, when a large rockfall 10 falls and receives an impact force as shown by an arrow 11, the roof 5 and the girder 4 receive a large impact force, but in the embodiment, the pedestal 3 is used.
Sinks and the entire lockshed is displaced, so the impact load is relieved and dispersed. Therefore, the cross section of the member of the lock shed can be designed smaller than before. Also, the conventional design significantly improves safety.
【００１２】図５、図６に他のロックシェッドの例を示
した。これらは一方の脚柱３と梁４とから成る逆Ｌ字形
のラーメン構造とこれを支持する擁壁１２又は脚柱１３
とから成るものである。この場合、ラーメン構造の脚柱
３の下端と基礎６との間に緩衝装置を設けるとよい。FIG. 5 and FIG. 6 show examples of other lock sheds. These are an inverted L-shaped rigid frame structure composed of one pillar 3 and one beam 4, and a retaining wall 12 or a pillar 13 that supports this.
It consists of and. In this case, a shock absorber may be provided between the lower end of the pillar 3 having the rigid frame structure and the foundation 6.
【００１３】[0013]
【発明の効果】本発明によれば、ロックシェッドの経済
的な設計が可能になる。また安全率が高くなる。According to the present invention, it is possible to economically design the lock shed. In addition, the safety factor increases.
【図１】ロックシェッドの構造を示す側面図である。FIG. 1 is a side view showing a structure of a lock shed.
【図２】実施例の脚柱部を示す断面図である。FIG. 2 is a cross-sectional view showing a pedestal portion of an embodiment.
【図３】実施例の脚柱部を示す断面図である。FIG. 3 is a cross-sectional view showing a pedestal portion of the embodiment.
【図４】実施例の脚柱部を示す断面図である。FIG. 4 is a cross-sectional view showing a pedestal portion of an embodiment.
【図５】ロックシェッドの他の実施例の側面図である。FIG. 5 is a side view of another embodiment of the lockshed.
【図６】ロックシェッドの他の実施例の側面図である。FIG. 6 is a side view of another embodiment of the lockshed.
１ ロックシェッド ２ 道路 ３ 脚柱 ４ 梁 ５ 屋根 ６ 基礎コンク
リート ７ ゴム板 ８ 板ばね ９ 流体ダンパ １０ 落石 １１ 矢印 １２ 擁壁 １３ 脚柱1 Rockshed 2 Road 3 Pillar 4 Beam 5 Roof 6 Foundation concrete 7 Rubber plate 8 Leaf spring 9 Fluid damper 10 Rockfall 11 Arrow 12 Retaining wall 13 Pillar
Claims (1)
ト中に上下動可能に建込み、該脚柱下端と基礎コンクリ
ートとの間に緩衝装置を設けたことを特徴とするシェッ
ドの衝撃力緩和装置。1. An apparatus for mitigating impact force of a shed, characterized in that a lower end of a shed pedestal is vertically movably built in a foundation concrete, and a shock absorber is provided between the lower end of the pedestal and the foundation concrete. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17675493A JPH0734418A (en) | 1993-07-16 | 1993-07-16 | Shed shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17675493A JPH0734418A (en) | 1993-07-16 | 1993-07-16 | Shed shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0734418A true JPH0734418A (en) | 1995-02-03 |
Family
ID=16019231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17675493A Pending JPH0734418A (en) | 1993-07-16 | 1993-07-16 | Shed shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734418A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594229A (en) * | 2015-01-21 | 2015-05-06 | 中铁二院工程集团有限责任公司 | Z-shaped rigid frame half shed type open-cut tunnel structure |
| WO2018098857A1 (en) * | 2016-12-02 | 2018-06-07 | 大连理工大学 | Combined energy dissipation scaffolding structure used for rockfall prevention on high steep slope in earthquake area |
| CN111101966A (en) * | 2019-12-29 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Large karst cavity rockfall-preventing elastic tunnel structure and construction method |
| CN117385809A (en) * | 2023-11-16 | 2024-01-12 | 四川省交通勘察设计研究院有限公司 | Anti-scouring structure for revetment of port channel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3125812B2 (en) * | 1992-03-10 | 2001-01-22 | 株式会社リコー | Electrophotographic developer |
-
1993
- 1993-07-16 JP JP17675493A patent/JPH0734418A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3125812B2 (en) * | 1992-03-10 | 2001-01-22 | 株式会社リコー | Electrophotographic developer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594229A (en) * | 2015-01-21 | 2015-05-06 | 中铁二院工程集团有限责任公司 | Z-shaped rigid frame half shed type open-cut tunnel structure |
| WO2018098857A1 (en) * | 2016-12-02 | 2018-06-07 | 大连理工大学 | Combined energy dissipation scaffolding structure used for rockfall prevention on high steep slope in earthquake area |
| US11072898B2 (en) | 2016-12-02 | 2021-07-27 | Dalian University Of Technology | Combined energy dissipation scaffolding structure for preventing falling rock for high and steep slope in seismic region |
| CN111101966A (en) * | 2019-12-29 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Large karst cavity rockfall-preventing elastic tunnel structure and construction method |
| CN117385809A (en) * | 2023-11-16 | 2024-01-12 | 四川省交通勘察设计研究院有限公司 | Anti-scouring structure for revetment of port channel |
| CN117385809B (en) * | 2023-11-16 | 2024-07-19 | 四川省交通勘察设计研究院有限公司 | Anti-scouring structure for revetment of port channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970624 |