JPH0514225U - Damped steel sheet pile wall - Google Patents
Damped steel sheet pile wallInfo
- Publication number
- JPH0514225U JPH0514225U JP5973591U JP5973591U JPH0514225U JP H0514225 U JPH0514225 U JP H0514225U JP 5973591 U JP5973591 U JP 5973591U JP 5973591 U JP5973591 U JP 5973591U JP H0514225 U JPH0514225 U JP H0514225U
- Authority
- JP
- Japan
- Prior art keywords
- steel
- vibration
- steel sheet
- foundation
- wall
- 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.)
- Withdrawn
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- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
(57)【要約】
【目的】 地震や交通などによる振動を効果的かつ経済
的に防止する各種建築物、鉄道および道路の基礎工事に
使用する制振基礎壁を提供する。
【構成】 対向する二枚の鋼矢板の対面側表面に合成ゴ
ムまたはウレタン・エラストマーの単体またはこれらの
組合せ積層材を接着またはボルト締結し、該鋼製壁を１
組として概鋼板の両端に嵌合爪部を設けて爪部で連結し
た鋼製連壁を形成し、該鋼製連壁の隙間にコンクリート
を流込んで構成した鋼製基礎連壁。
【効果】 振動源から伝達して来た振動は、まず鋼製連
壁の嵌合爪部の引張連結で一部減衰され、さらに鋼板内
面の制振材の弾性変形で振動減衰され、まだ残された振
動は制振材間のコンクリート内部を一部伝達して建築物
基礎側の鋼板内面の制振材に達し、概制振材の弾性変形
で完全に減衰される。
(57) [Summary] [Purpose] To provide a damping foundation wall used for foundation construction of various buildings, railways and roads that effectively and economically prevent vibration due to earthquakes and traffic. [Structure] Synthetic rubber or urethane / elastomer alone or a combination of these laminated materials is bonded or bolted to the opposite surfaces of two steel sheet piles facing each other, and the steel wall
A steel foundation connecting wall formed by forming fitting claw portions at both ends of a steel plate as a set to form a steel connecting wall connected by the claw portions, and pouring concrete into a gap between the steel connecting walls. [Effect] The vibration transmitted from the vibration source is first partially damped by the tension connection of the fitting claws of the steel wall, and is further damped by the elastic deformation of the damping material on the inner surface of the steel plate. The generated vibration partially transmits inside the concrete between the damping materials and reaches the damping material on the inner surface of the steel plate on the building foundation side, and is completely damped by elastic deformation of the rough damping material.
Description
【０００１】 本考案は地震や交通による振動を防止するために各種建築物、鉄道、道路など の基礎工事に使用するラルゼル型、溝型断面など各種鋼矢板の制振鋼矢板壁に関 するものである。The present invention relates to a damping steel sheet pile wall of various steel sheet piles such as a Ralzel type and groove type cross section used for foundation construction of various buildings, railways, roads, etc. to prevent vibration due to earthquakes and traffic. Is.
【０００２】 住民の快適な居住環境が整備される中で、最大の問題点は振動および騒音であ ると言われている。すなわち、鉄道や道路に面した建築物では、最近の輸送の効 率化と相俟って、列車やトラックのより高速化ならびに重荷重化が一層進むこと によって振動や騒音問題が表面化し、一部では社会問題にまで発展している。こ うした環境下で、騒音に関しては色々な取組がなされてきているが、振動問題に 関しては無対策に等しい状況にある。特別に完全保護が必要な原子炉建屋や精密 機械などが設置されている建築構造物については、基礎を周辺と分離した免振構 造基礎工法が行われているが、コスト高で一般の建築構造物までは普及していな い。従って、一般には製鉄工場で製造された鋼矢板を、そのままの形で基礎工事 に使用されているのが現状である。It is said that vibration and noise are the biggest problems in maintaining a comfortable living environment for residents. In other words, in buildings facing railways and roads, coupled with the recent increase in transportation efficiency, trains and trucks have become faster and heavier, and vibration and noise problems have come to the fore. The department has developed into a social problem. In such an environment, various measures have been taken regarding noise, but with regard to vibration problems, the situation is equivalent to no countermeasure. For building structures that have a reactor building or precision machinery that requires special complete protection, the base isolation method is used in which the foundation is separated from the surrounding area. Even structures are not popular. Therefore, in general, steel sheet piles manufactured at steel mills are used as they are for foundation work.
【０００３】 最近の地下大深度開発に向けた低コスト基礎工法として脚光を浴び、日本鉄鋼 協会講演概要集、Ｎｏ５，ＶｏＬ３（１９９０）−１４０７で紹介された鋼製連 続地中壁は、継手を有するエレメントを地中に連結挿入した後、必要に応じてコ ンクリートを打設充填し、これらを一体化して地中に連続壁体を構築し耐力、水 密性、品質信頼性など連壁性能の改善を計ったものである。The steel continuous underground wall introduced in No. 5, VoL3 (1990) -1407, which was spotlighted as a low-cost basic construction method for deep underground development, was introduced in No. 5, VoL3 (1990) -1407. After connecting and inserting the elements with the ground into the ground, pour and fill concrete as required, and integrate these to construct a continuous wall body in the ground to construct a continuous wall such as yield strength, watertightness, and quality reliability. This is a performance improvement.
【０００４】 本考案者らはこうした基礎工事の中で、鋼矢板の連壁工法を前提にして振動を 効率的に減衰させる制振鋼矢板壁を提供する事を目的に、鋼矢板に各種振動吸収 材を溶接また貼付し、土圧に十分耐えながらかつ大きな変形性能を有しさらに復 元性を有する最適振動吸収材の探索について、圧縮試験で荷重と変位の関係を調 査した。このような諸調査から次のような知見を得た。Among the foundation works, the present inventors have proposed various types of vibration to steel sheet piles for the purpose of providing a vibration-damping steel sheet pile wall that efficiently damps vibrations on the premise of a steel wall sheet wall construction method. The absorber was welded or affixed, and the relationship between load and displacement was investigated in a compression test in order to search for an optimum vibration absorber that has sufficient deformation performance while having sufficient durability against earth pressure, and has stability. The following findings were obtained from these surveys.
【０００５】 振動吸収性能材としては合成ゴムおよびウレタンエラストマーが最も優れ、か つ復元性がある。Synthetic rubber and urethane elastomers are the most excellent vibration absorbing materials, and they have resilience.
【０００６】 土圧に対応する荷重は、二枚の鋼板表面に接着またはボルト締結する合成ゴム またはウレタンエラストマーの厚さによって対応可能である。The load corresponding to earth pressure can be coped with by the thickness of synthetic rubber or urethane elastomer adhered or bolted to the surfaces of two steel plates.
【０００７】 合成ゴムまたはウレタンエラストマーは硬度を変えることでバネ定数を自由に 変えられる。The spring constant of synthetic rubber or urethane elastomer can be freely changed by changing the hardness.
【０００８】 本考案は上記のような知見から構成したもので、その要旨は隣接側に嵌合型継 手部を有する鋼矢板を相対向させたそれぞれの内側に、該嵌合型継手部高さ以上 の厚さの振動吸収性材料を張り付けた制振鋼矢板壁である。The present invention is configured based on the above knowledge, and the gist thereof is that the heights of the fitting type joint portions are provided inside the steel sheet piles having the fitting type joint portions on the adjacent sides facing each other. It is a vibration-damping steel sheet pile wall to which a vibration-absorbing material having a thickness greater than that is attached.
【０００９】[0009]
以下、本考案について図面を参照しながら詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
【００１０】 図１は、長尺鋼矢板壁の一実施例で、軸断面図を示す。図において１はラルゼ ル型、溝型断面などの鋼矢板で、断面形状を示す。鋼矢板１は、腹部ａと、その 片側または両側の隣接側に設けられた嵌合型継手部ｂから構成されている。嵌合 型継手部ｂの形状についても、テルルージュ型、ランサム型、クロックナー型な どが使用され、特に限定されるものではない。２は振動吸収性材料で、相対向し て任意な間隙に例えば離隔材３を設けて離隔された鋼矢板１のそれぞれの内側に 、嵌合型継手部高さ以上の厚さで接着剤、ボルト締結などで張り付けて固定し、 嵌合型継手部から伝達される鋼矢板１の振動を減衰するものである。しかし、嵌 合型継手部高さよりも薄い振動吸収性材料２の張り付けは、鋼矢板１に伝達され た振動の減衰効果が小さい。また、振動吸収性材料２は合成ゴム、ウレタン・エ ラストマーの単体もしくはこれらを任意に組合わせ積層材が良く、これらは次の ような性質の特長をもっている。FIG. 1 shows an example of a long steel sheet pile wall in a sectional axial view. In the figure, reference numeral 1 denotes a steel sheet pile having a Larzel type or a groove type sectional shape, and its sectional shape is shown. The steel sheet pile 1 is composed of an abdominal part a and a fitting type joint part b provided on one side or adjacent sides of both sides. The shape of the fitting type joint portion b is not particularly limited, and the Telluruge type, the ransom type, the Crockner type and the like are used. Reference numeral 2 denotes a vibration absorbing material, and an adhesive agent having a thickness equal to or higher than the height of the fitting type joint portion is provided inside each of the steel sheet piles 1 facing each other and provided with, for example, a separating member 3 in an arbitrary gap. The vibration is applied to the steel sheet pile 1 which is transmitted from the fitting type joint portion by affixing and fixing it with bolts or the like. However, the attachment of the vibration absorbing material 2 thinner than the height of the fitting type joint portion has a small effect of damping the vibration transmitted to the steel sheet pile 1. Further, the vibration absorbing material 2 is preferably a synthetic rubber, a urethane elastomer alone or a laminated material in which any of these is arbitrarily combined, and these have the following characteristics.
【００１１】 制振性能が優れ、かつ復元性がある。The vibration damping performance is excellent and the restoration is possible.
【００１２】 土圧に十分に耐える圧縮性能を有する。[0012] It has a compression performance that sufficiently withstands earth pressure.
【００１３】 耐侯性、耐油性、耐老化性、耐熱・耐寒性などに優れている。It is excellent in weather resistance, oil resistance, aging resistance, heat resistance and cold resistance.
【００１４】 一個の材料で、軸方向のみならず、上、下、左右の横方向、回転方向振動も減 衰させることが出来る。With a single material, it is possible to reduce not only the axial vibration but also the vibration of the upper, lower, left and right lateral directions, and the rotational direction.
【００１５】 形状が容易に成形でき、かつ小形で、経済的である。[0015] The shape can be easily formed, is small, and is economical.
【００１６】 尚、離隔材３は、前記のように相対向する双方の鋼矢板１の間隙、高さ、位置 を任意に設定保持するもので、その材質、大きさ、個数もそれらを保持するだけ の強度で取り付けられる。The separating member 3 holds the gaps, heights, and positions of the steel sheet piles 1 facing each other as described above, and holds the material, size, and number of them. It can be attached with only strength.
【００１７】 上記のように一体構造に組立られた制振鋼矢板壁は、図２で示すように、工事 の規模や土圧の大きさに応じて任意の数がそれぞれの嵌合型継手部をもって連結 され、振動伝達側Ａと建造物基礎コンクリート側Ｂの間に設置し、各種の建築物 、鉄道、道路などの基礎工事が施行される。振動伝源から発し振動伝達側Ａの鋼 矢板に伝達された振動は、その一部が嵌合型継手部の引張連結で減衰され、さら に相対向する鋼矢板の間に張付けられた振動吸収性材料の弾性変形によって完全 に吸収されて消滅し、建造物側の基礎コンクリート側Ｂの鋼矢板に伝達される事 のない効果を奏する。As shown in FIG. 2, the damping steel sheet pile wall assembled into an integral structure as described above has an arbitrary number of fitting-type joint portions depending on the scale of construction and earth pressure. And installed between the vibration transmitting side A and the building foundation concrete side B, the foundation work for various buildings, railways, roads, etc. will be carried out. The vibration emitted from the vibration source and transmitted to the steel sheet pile on the vibration transmitting side A is partly damped by the tension connection of the fitting type joint, and the vibration absorption that is applied between the steel sheet piles facing each other is also absorbed. It is completely absorbed by the elastic deformation of the elastic material, disappears, and is not transmitted to the steel sheet pile on the foundation concrete side B on the building side.
【００１８】 以下、本考案の実用例について説明する。Hereinafter, a practical example of the present invention will be described.
【００１９】 本考案が制振性の優れた制振鋼矢板壁かどうかを確認するために、フィールド に幅３ｍ、長さ７ｍ、深さ３ｍの分離基礎を設け、該基礎の長さ７ｍの中央部に 本考案の制振鋼矢板壁を設けて、該鋼製基礎連壁から２ｍ離れた振動伝達側基礎 に、クレーン車で吊り上げた重錐５０ｋｇを３ｍ高さから落下させて建築構造物 側の基礎に伝達する振動加速度レベルを振動計で測定した。なお、振動計の設置 位置は建築構造物側の鋼矢板壁から３００ｍｍ離れた位置に固定した。比較のた めに、従来から使用されている鋼矢板を連続基礎とした場合についても、同一の 試験条件で落重試験を行った。In order to confirm whether or not the present invention is a vibration damping steel sheet pile wall having excellent vibration damping property, a separation foundation having a width of 3 m, a length of 7 m and a depth of 3 m is provided in the field, and the foundation having a length of 7 m is provided. A damping steel sheet pile wall of the present invention is provided in the central portion, and 50 kg of weights suspended by a crane truck is dropped from a height of 3 m on a vibration transmitting side foundation 2 m away from the steel foundation connecting wall to construct a building structure. The vibration acceleration level transmitted to the side foundation was measured with a vibrometer. The vibrometer was installed at a position 300 mm away from the steel sheet pile wall on the side of the building structure. For comparison, a drop weight test was also performed under the same test conditions, even when the conventionally used steel sheet pile was used as the continuous foundation.
【００２０】 その試験結果を表１に示す。本考案は非常に厳しい実験にもかかわらず、東京 都の工場に適用する振動の規制レベル７０ｄＢ以下を十分に満足したものである 。The test results are shown in Table 1. Despite the extremely rigorous experiment, the present invention fully satisfies the vibration regulation level of 70 dB or less applied to the factory in Tokyo.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
本考案の制振鋼矢板壁は従来法と比較して、極めて優れた制振性を有すること が表１からも分かる。なお、本考案では従来のような鉄筋を使用する基礎工法で はないので、工期が短く、工場製造材の現場建込みなので品質信頼性が高く、工 事での土地専有面積が小さく、しかも低コストであるなどの優れた特徴を有する 。 It can also be seen from Table 1 that the vibration-damping steel sheet pile wall of the present invention has extremely excellent vibration-damping property compared with the conventional method. Since the present invention is not a basic construction method using reinforcing bars as in the past, the construction period is short, quality is reliable because it is built on-site in the factory manufactured material, and the area occupied by the land is small and the construction is low. It has excellent features such as cost.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の一実施例を示す鋼矢板壁の軸断面図。FIG. 1 is an axial sectional view of a steel sheet pile wall showing an embodiment of the present invention.
【図２】本考案の施工例を示す図。FIG. 2 is a diagram showing a construction example of the present invention.
１…鋼矢板 ２…振動吸収性材
料 ３…離隔材1 ... Steel sheet pile 2 ... Vibration absorbing material 3 ... Separator
Claims (1)
相対向させたそれぞれの内側に、該嵌合型継手部高さ以
上の厚さの振動吸収性材料を張り付けた事を特徴とする
制振鋼矢板壁。1. A vibration absorbing material having a thickness equal to or greater than the height of the fitting type joint portion is attached to the inside of each of the steel sheet piles having the fitting type joint portion on the adjacent side facing each other. Damping steel sheet pile wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5973591U JPH0514225U (en) | 1991-07-30 | 1991-07-30 | Damped steel sheet pile wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5973591U JPH0514225U (en) | 1991-07-30 | 1991-07-30 | Damped steel sheet pile wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0514225U true JPH0514225U (en) | 1993-02-23 |
Family
ID=13121770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5973591U Withdrawn JPH0514225U (en) | 1991-07-30 | 1991-07-30 | Damped steel sheet pile wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5899295B1 (en) * | 2014-11-13 | 2016-04-06 | 中村物産有限会社 | Ground reinforcement structure, building, and ground reinforcement structure construction method |
-
1991
- 1991-07-30 JP JP5973591U patent/JPH0514225U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5899295B1 (en) * | 2014-11-13 | 2016-04-06 | 中村物産有限会社 | Ground reinforcement structure, building, and ground reinforcement structure construction method |
| JP2016094732A (en) * | 2014-11-13 | 2016-05-26 | 中村物産有限会社 | Ground reinforcement structure, building structure, and construction method for ground reinforcement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19951102 |