JP2002206218A - Pier structure - Google Patents
Pier structureInfo
- Publication number
- JP2002206218A JP2002206218A JP2001001576A JP2001001576A JP2002206218A JP 2002206218 A JP2002206218 A JP 2002206218A JP 2001001576 A JP2001001576 A JP 2001001576A JP 2001001576 A JP2001001576 A JP 2001001576A JP 2002206218 A JP2002206218 A JP 2002206218A
- Authority
- JP
- Japan
- Prior art keywords
- pier
- water
- frame
- ground
- sections
- 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
- Bridges Or Land Bridges (AREA)
- Revetment (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、桟橋の構造に関
し、特に、フレーム構造により構築された桟橋に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pier structure, and more particularly to a pier constructed by a frame structure.
【0002】[0002]
【従来の技術】従来、石炭火力発電所における揚炭桟橋
は、重量の大きい揚炭機(アンローダ)が上載されるた
め、重荷重に耐え得るように鋼管杭基礎の桟橋構造が採
用されている。一般に、桟橋構造は、ケーソン構造等の
重力式構造と比較して構造が簡易で軽量であり、かつ海
水等を透過させることができることから、滞留による水
域の汚濁を軽減できるなどの利点を有する。このため、
係船設備構造として多用されている。また、桟橋基礎に
ついては、杭基礎が一般に採用されている。2. Description of the Related Art Conventionally, since a heavy coal unloading machine (unloader) is mounted on a coal unloading pier in a coal-fired power plant, a pier structure based on a steel pipe pile has been employed to withstand heavy loads. . In general, a pier structure has advantages such as a simpler and lighter structure than a gravity type structure such as a caisson structure and the ability to transmit seawater and the like, thereby reducing pollution of water bodies due to stagnation. For this reason,
It is often used as mooring equipment structure. As for the pier foundation, a pile foundation is generally adopted.
【0003】しかしながら、従来の杭基礎の構造による
と、水平力作用時に発生する水平変位量でその構造が決
定されるため、構成部材の性能を最大限発揮できなかっ
たり、構造物の構築を海上施工で行なう必要があること
から、使用鋼材量が多くなったり、施工期間に長期を要
するという問題点があった。また、基礎が構築される対
象地盤が軟岩などの地盤においては、より経済的な大口
径杭を採用する場合、杭の閉塞率などの問題があり、設
計支持力値の設定に不確定要素が大きく、設計段階での
杭仕様の確定が困難となるという問題点があった。加え
て、施工時において、杭の支持力を確認するために海上
での原位置試験が必要となるなどの問題点があった。However, according to the structure of the conventional pile foundation, its structure is determined by the amount of horizontal displacement generated when a horizontal force is applied, so that the performance of the components cannot be maximized or the construction of the structure cannot be carried out offshore. Since it is necessary to carry out the work, there are problems that the amount of steel material used increases and that the work period takes a long time. In addition, if the target ground on which the foundation is to be constructed is soft rock, etc., when adopting a more economical large-diameter pile, there is a problem such as the clogging rate of the pile, and uncertain factors in setting the design bearing capacity value. There was a problem that it was difficult to determine the pile specifications at the design stage. In addition, at the time of construction, there was a problem that an in-situ test at sea was required to check the bearing capacity of the pile.
【0004】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
問題点に鑑みてなされたものであり、水上における施工
作業を低減して水上施工期間の短縮と工事費の縮減を図
り、各種の地盤へ対応可能にするとともに、桟橋設置場
所の環境への負荷の低減を図った桟橋構造を提供するこ
とを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has been made to reduce the number of construction work on water, thereby shortening the construction time on water and reducing construction cost. It is an object of the present invention to provide a pier structure capable of supporting the ground and reducing a load on an environment at a pier installation location.
【0005】[0005]
【課題を解決するための手段】本発明は、桟橋構造に係
り、複数のフレーム構造体を水平方向に連設して水上ま
たは水中に構築される桟橋であって、前記フレーム構造
体は、水上または水中に位置する上側構造部と、水上ま
たは水中に位置する下側構造部とを備え、鉛直材、水平
材および斜材を有するブロック単位でトラス構造を有す
る枠体で構成され、前記上側構造部は、上部に床板が設
けられ、隣り合う他のフレーム構造体同士の床板を隣接
配置し、前記下側構造部は、下端部に水中地盤上に設置
する基礎部が設けられたことを特徴とするものである。SUMMARY OF THE INVENTION The present invention relates to a pier structure, which is a pier constructed by connecting a plurality of frame structures in a horizontal direction or on water or underwater. Or an upper structure portion located in the water and a lower structure portion located on or in the water, comprising a frame having a truss structure in block units having a vertical material, a horizontal material, and a diagonal material, wherein the upper structure The part is provided with a floor plate on the upper part, the floor plates of other adjacent frame structures are arranged adjacent to each other, and the lower structural part is provided with a base part installed on the underwater ground at the lower end part. It is assumed that.
【0006】また、前記枠体は、地上で製作され、ブロ
ック単位で水上運搬されて据付されることが好ましい。
また、前記基礎部は、地盤の地耐力に応じた設置面積を
有することが好ましい。また、前記鉛直材として金属管
を用いて、その中空部にコンクリートを充填することが
好ましい。また、前記床板は、前記下側構造部を水上ま
たは水中に構築後、該下側構造部の上部に設けられた上
側枠体の上部に構造部材の機能を持つプレキャスト板を
設置して、該プレキャスト板の上部にコンクリートを打
設することが好ましい。[0006] It is preferable that the frame is manufactured on the ground, transported on water in blocks, and installed.
Further, it is preferable that the foundation has an installation area corresponding to the ground strength of the ground. Further, it is preferable to use a metal pipe as the vertical material and fill the hollow portion with concrete. In addition, the floorboard, after building the lower structure portion on or under water, installing a precast plate having a function of a structural member on the upper portion of the upper frame provided on the upper portion of the lower structure portion, It is preferable to cast concrete on the upper part of the precast plate.
【0007】本発明によれば、以下のような作用が得ら
れる。すなわち、桟橋のフレーム構造を、トラス構造を
有する枠体で構成して、基礎部の構造を直接設置型とし
たので、従来の杭式構造と比較して、構成部材の性能を
最大限引き出せるので、使用鋼材量を低減することがで
きる。また、地震時に発生する水平変位量を従来よりも
低く抑えることができる。さらに、基礎部を地盤上に直
接設置する直接設置型としたので、従来のように杭の支
持力の確認をする必要がない。According to the present invention, the following effects can be obtained. In other words, the frame structure of the pier is composed of a frame having a truss structure, and the structure of the foundation is directly installed, so that the performance of the components can be maximized as compared with the conventional pile type structure. In addition, the amount of steel used can be reduced. Further, the amount of horizontal displacement generated during an earthquake can be suppressed lower than before. Furthermore, since the foundation is directly installed on the ground, it is not necessary to confirm the bearing capacity of the pile as in the conventional case.
【0008】また、基礎部を、地盤の地耐力に応じた設
置面積を有するものとすることで、軟岩地盤であっても
確実に桟橋を支持することができる。[0008] Further, by providing the foundation with an installation area corresponding to the ground strength of the ground, the pier can be reliably supported even on soft rock ground.
【0009】また、トラス構造を有する下側構造部およ
び上側枠体を陸上の工場で製作した後に、大型起重機船
などによりブロック単位で水上運搬して据付けること
で、従来必要とされていた水上での型枠、支保工が省略
できる。従って、水上における現場作業を大幅に削減で
き、工期、工事費用を大幅に低減することができる。Further, the lower structure portion having the truss structure and the upper frame body are manufactured at a land factory, and then transported and installed in blocks by a large-sized hoisting ship or the like, which is conventionally required. Formwork and support work can be omitted. Therefore, the on-site work on the water can be significantly reduced, and the construction period and construction cost can be significantly reduced.
【0010】また、フレーム構造体の鉛直材に金属管を
用いて、その金属管の中空部にコンクリートを充填する
ことで、金属管の補強をするとともに、据付時の下側構
造部自体の安定性の向上を図ることができる。これによ
り、金属材の使用量の低減を図ることができる。In addition, by using a metal tube as a vertical member of the frame structure and filling the hollow portion of the metal tube with concrete, the metal tube is reinforced and the lower structure itself during installation is stabilized. Performance can be improved. As a result, the amount of the metal material used can be reduced.
【0011】また、床板の構成を、下側構造部を水上ま
たは水中に構築後、該下側構造部の上部に設けられた上
側枠体の上部に構造部材の機能を持つプレキャスト板を
設置して、該プレキャスト板の上部に現場でコンクリー
トを打設するようにしたので、前記プレキャスト板を型
枠として機能させることで、従来必要とされていた海上
での型枠、支保工が省略できる。従って、海上におけ現
場作業が大幅に削減でき、工期、工事費用を大幅に低減
することができる。[0011] Further, the floor plate is constructed by constructing a lower structure portion on or under water, and then installing a precast plate having a function of a structural member on an upper frame provided on an upper portion of the lower structure portion. Since concrete is cast on the upper part of the precast plate at the site, by using the precast plate as a mold, the conventionally required formwork and support on the sea can be omitted. Therefore, the on-site work at sea can be significantly reduced, and the construction period and construction cost can be significantly reduced.
【0012】[0012]
【発明の実施の形態】以下、本発明の実施の形態を、図
面を参照して詳細に説明する。図1〜図9は発明の実施
形態の一例であって、図中、図と同一の符号を付した部
分は同一物を表わしている。図1は本発明の実施形態に
係る揚炭桟橋の全体の構成を示す側面図、図2は前記揚
炭桟橋の全体の構成を示す平面図、図3は前記揚炭桟橋
の1ブロックのフレーム構造体の構成を示す平面図、図
4は図3のA−A断面矢視図、図5は図3のB−B断面
矢視図、図6は本実施形態に係る床板の構成を示す断面
詳細図、図7は揚炭桟橋の1ブロックのフレーム構造体
の構成を示す概略図、図8は前記フレーム構造体の床
板、基礎部の施工状態を示す概略図、図9は本実施形態
に係る揚炭桟橋の使用状況の一例を示す概略図である。Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 9 show an example of the embodiment of the present invention. In the drawings, portions denoted by the same reference numerals as those in the drawings represent the same components. FIG. 1 is a side view showing the entire configuration of a coal pier according to an embodiment of the present invention, FIG. 2 is a plan view showing the entire configuration of the coal pier, and FIG. 3 is a frame of one block of the coal pier. FIG. 4 is a plan view showing the structure of the structure, FIG. 4 is a sectional view taken along the line AA of FIG. 3, FIG. 5 is a sectional view taken along the line BB of FIG. 3, and FIG. 7 is a schematic view showing the structure of a frame structure of one block of the coal pier, FIG. 8 is a schematic view showing a construction state of a floor plate and a foundation of the frame structure, and FIG. 9 is this embodiment. It is a schematic diagram showing an example of the use situation of the coal unloading pier concerning.
【0013】本実施形態は、図1、図2に示すように、
岸壁11に沿って複数のフレーム構造体2を水平方向に
連設するとともに、該フレーム構造体2の下部を水中の
地盤3に設置して、該フレーム構造体2の上部を水面4
上に突設して構築される揚炭桟橋1である。前記フレー
ム構造体2は、図3〜図5に示すように、水面4上に配
置される上側構造部5と、上部が水上に配置されるとと
もに下部が水中に配置される下側構造部6とを備えてい
る。In this embodiment, as shown in FIGS. 1 and 2,
A plurality of frame structures 2 are connected horizontally along the quay 11, the lower part of the frame structure 2 is installed on the underwater ground 3, and the upper part of the frame structure 2 is
It is a coal pier 1 protruding above and constructed. As shown in FIGS. 3 to 5, the frame structure 2 includes an upper structure portion 5 disposed on a water surface 4 and a lower structure portion 6 having an upper portion disposed on water and a lower portion disposed in water. And
【0014】前記上側構造部5は、図3〜図5に示すよ
うに、下側構造部6の上部に設けられる格子状に形成さ
れたの上側枠体7と、該上側枠体7の上部に設けられる
スラブ状の床板8とを備えている。隣り合う他のフレー
ム構造体2の床板8は、並設して隣接配置されている。
前記床板8は、図6、図7に示すように、工場で陸上製
作された下側構造部6と上側枠体7を水中に設置後、該
上側枠体7の上部に構造部材としてプレキャスト板10
を設置して、その上部にコンクリート9を打設して構成
される。As shown in FIGS. 3 to 5, the upper structure portion 5 includes an upper frame member 7 formed in a lattice and provided on an upper portion of the lower structure portion 6, and an upper portion of the upper frame member 7. And a slab-like floor plate 8 provided in the slab. The floor boards 8 of other adjacent frame structures 2 are juxtaposed and arranged adjacently.
As shown in FIGS. 6 and 7, the floor plate 8 is provided with a lower structural part 6 and an upper frame 7 which are manufactured on land at a factory in water and then a precast plate as a structural member on the upper part of the upper frame 7. 10
Is installed, and concrete 9 is cast on the top of the above.
【0015】連設されるフレーム構造体2の床板8上部
には、図2、図9に示すように、石炭船40に船積みさ
れた石炭を採り出すためのアンローダ31が走行するア
ンローダレール32が設置されるアンローダレール基礎
22が2列平行して形成され、その内側に、石炭を搬出
するためのベルトコンベア33が設置されるベルトコン
ベア基礎21が形成されている。As shown in FIGS. 2 and 9, an unloader rail 32 on which an unloader 31 for extracting coal loaded on a coal carrier 40 travels is provided above the floor plate 8 of the frame structure 2 which is continuously provided. The unloader rail foundation 22 to be installed is formed in two rows in parallel, and the belt conveyor foundation 21 to which the belt conveyor 33 for carrying out coal is installed is formed inside the unloader rail foundation 22.
【0016】また、連設される一端部のフレーム構造体
2aの床板8a上部には、係船機基礎23、メンテナン
スデッキ基礎24、フェアリーダ基礎25、26等が設
けられている。また、連設される他方端部のフレーム構
造体2bの床板8b上部には、係船機基礎23、メンテ
ナンスデッキ基礎24、フェアリーダ基礎25等が設け
られるとともに、ベルトコンベア連絡台28、岸壁に渡
るための連絡橋29が設けられている。前記フレーム構
造体2の反岸壁側の下方略中央部には、防舷材30が突
設される。A mooring machine base 23, a maintenance deck base 24, fairlead bases 25 and 26, etc. are provided on the floor plate 8a of the frame structure 2a at one end which is continuously provided. In addition, a mooring machine base 23, a maintenance deck base 24, a fairleader base 25, and the like are provided on the floor plate 8b of the frame structure 2b at the other end to be continuously provided, and extend over the belt conveyor connecting stand 28 and the quay. Bridge 29 is provided. A fender 30 is protrudingly provided at a substantially central portion below the quay wall side of the frame structure 2.
【0017】前記下側構造部6は、図4、図5に示すよ
うに、鉛直材としての縦鋼管12と、水平材としての横
鋼管13および斜材としての斜め鋼管14a、14b、
14cとを有するトラス構造の下側枠体15を備え、前
記縦鋼管12の下端部には、水中の地盤3上に設置する
基礎部20が設けられている。As shown in FIGS. 4 and 5, the lower structural portion 6 includes a vertical steel pipe 12 as a vertical material, a horizontal steel pipe 13 as a horizontal material, and oblique steel pipes 14a and 14b as diagonal materials.
14c, a lower frame 15 having a truss structure having a truss structure 14c is provided.
【0018】前記下側枠体15の構成は、図3〜図6に
示すように、6本の縦鋼管12を3本ずつ平行に立設さ
せるとともに対向させて平面視で略矩形状に配置し、前
記縦鋼管12の高さ方向略中央部の位置に横鋼管13を
略水平に配置して、隣り合う縦鋼管12を連結してい
る。As shown in FIGS. 3 to 6, the structure of the lower frame 15 is such that six vertical steel pipes 12 are erected three by three in parallel and are opposed to each other and arranged in a substantially rectangular shape in plan view. Then, the horizontal steel pipes 13 are disposed substantially horizontally at positions substantially at the center of the vertical steel pipes 12 in the height direction, and adjacent vertical steel pipes 12 are connected.
【0019】また、前記下側枠体15の縦鋼管12が3
本並設される一側方においては、図4に示すように、横
鋼管13より下方で、両側の縦鋼管12下部から中央部
の縦鋼管12の横鋼管との連結部12aに向かい斜め鋼
管14aが設置され、横鋼管13より上方で、縦鋼管1
2の横鋼管13との連結部12aから、縦鋼管12上部
に設けられる上側枠体7の下側で隣り合う縦鋼管12上
部同士の間の中央位置7aに向かい斜め鋼管14bが設
置されている。Further, the vertical steel pipe 12 of the lower frame 15
As shown in FIG. 4, on one side in which the steel pipes are arranged side by side, as shown in FIG. 14a is installed, and above the horizontal steel pipe 13, the vertical steel pipe 1
An oblique steel pipe 14b is installed from a connection portion 12a with the second horizontal steel pipe 13 to a central position 7a between adjacent upper parts of the vertical steel pipes 12 below the upper frame 7 provided on the upper part of the vertical steel pipe 12. .
【0020】一方、前記下側枠体15の縦鋼管12が2
本並設される一側方においては、図5に示すように、横
鋼管13より下方で、縦鋼管12下部から隣り合う縦鋼
管12の横鋼管13との連結部12aに向かい斜め鋼管
14cが略X字状に交差して接合され、横鋼管13より
上方で、縦鋼管12の横鋼管13との連結部12aか
ら、縦鋼管12上部に設けられる上側枠体7の下側で隣
り合う縦鋼管12上部同士の間の中央位置7bに向かい
斜め鋼管14bが設置されている。On the other hand, the vertical steel pipe 12 of the lower frame 15
As shown in FIG. 5, on one side of the main pipes, an oblique steel pipe 14 c is provided below the horizontal steel pipe 13, from a lower part of the vertical steel pipe 12 to a connecting portion 12 a of the adjacent vertical steel pipe 12 with the horizontal steel pipe 13. The vertical steel pipes 12 are joined so as to intersect in a substantially X-shape, and are vertically adjacent to each other below the upper frame body 7 provided above the vertical steel pipe 12 from the connecting portion 12a of the vertical steel pipe 12 with the horizontal steel pipe 13 above the horizontal steel pipe 13. An oblique steel pipe 14b is provided at a central position 7b between the upper portions of the steel pipes 12.
【0021】前記縦鋼管12は、工場製作時にその中空
部にコンクリートが充填される。前記基礎部20は、図
4〜図7に示すように、円盤状の外形を呈し、施工時に
は該基礎部20を核としてその外周をコンクリート20
aで被い固め、地盤3の地耐力に応じた設置面積を確保
するように形成される。The hollow portion of the vertical steel pipe 12 is filled with concrete at the time of factory production. As shown in FIGS. 4 to 7, the base portion 20 has a disk-like outer shape.
a so as to secure an installation area corresponding to the ground strength of the ground 3.
【0022】次に、本実施形態による揚炭桟橋1の構築
について説明する。揚炭桟橋1を構成するフレーム構造
体2において、下側構造部6および上側枠体7は、陸上
の工場において所定の寸法を有するブロック単位で製作
される。そして、ブロック単位で構成された上側枠体7
および下側構造部6は、大型起重機船により水上運搬さ
れて、図7に示す状態で所定の位置に据付される。Next, the construction of the coal unloading pier 1 according to this embodiment will be described. In the frame structure 2 constituting the coal unloading pier 1, the lower structural portion 6 and the upper frame 7 are manufactured in units of blocks having predetermined dimensions in a land factory. Then, the upper frame 7 configured in block units
The lower structural portion 6 is carried by water on a large hoist ship and is installed at a predetermined position in a state shown in FIG.
【0023】下側枠体15を水中に設置するに際して、
水底の地盤3は、該下側枠体15が水平に設置されるよ
うに、下側枠体15下部に設けられた基礎部20と対向
する位置に凹部3aが形成されている。前記凹部3a
は、地盤3が構築された揚炭桟橋1の荷重に耐え得るよ
うに、基礎部20とコンクリート20aの設置面積を確
保できる大きさに形成される。When the lower frame 15 is installed in water,
A concave portion 3a is formed in the underwater ground 3 at a position facing a base portion 20 provided below the lower frame body 15 so that the lower frame body 15 is installed horizontally. The recess 3a
Is formed in a size that can secure the installation area of the foundation 20 and the concrete 20a so that the ground 3 can withstand the load of the coal pier 1 on which the ground is constructed.
【0024】そして、ブロック毎に一体的に構成された
下側構造部6と上側枠体7を複数個水中に設置する。こ
の時、前記下側構造部6は下端部の基礎部20とコンク
リート20aにより地盤3に固定されている。前記上側
枠体7は下側構造部6に固定されているが、隣り合う上
側枠体7同士は固定されていない。Then, a plurality of lower structural portions 6 and upper frame members 7 integrally formed for each block are installed in water. At this time, the lower structural part 6 is fixed to the ground 3 by the foundation 20 at the lower end and the concrete 20a. The upper frame 7 is fixed to the lower structure portion 6, but the adjacent upper frames 7 are not fixed.
【0025】そして、上側枠体7の上部にコンクリート
を打設して床板8を形成し、該床板8の上部に揚炭作業
に必要な、アンローダやコンベア等の設備とこれに付随
する装置の基礎を設けて、その後アンローダやコンベア
等を設置して揚炭桟橋1を構築するものである。Then, concrete is poured into the upper part of the upper frame 7 to form a floor plate 8. On the upper part of the floor plate 8, facilities such as unloaders and conveyors necessary for coal unloading work and equipment associated therewith are provided. A coal pier 1 is constructed by installing a foundation and then installing an unloader and a conveyor.
【0026】以上のように構成したので、本実施形態に
よれば、揚炭桟橋1の構造を、トラス構造を有する複数
のフレーム構造体2により構成したので、構成部材の性
能を最大限発揮できる。すなわち、フレーム構造体2の
上側枠体7および下側構造部6を陸上で同時に製作し、
所要地耐力を有する地盤3上に大型機械を用いて前記フ
レーム構造体2の上側枠体7および下側構造部6を直接
設置することで、設置時の安定性を確保するとともに、
多大な手間を要していた海上における型枠、支保工構築
および撤去作業を大幅に低減し、従来必要としていた海
上施工期間を大幅に削減することができる。また、基礎
部20を地盤3に直接設置する直接設置型としたので、
従来のように杭の支持力の確認をする必要がない。さら
に、基礎の大きさを地盤の地耐力に合わせた大きさにす
ることで、各種の地盤への適用が可能となる。According to the present embodiment, the structure of the unloading pier 1 is constituted by a plurality of frame structures 2 having a truss structure, so that the performance of the components can be maximized. . That is, the upper frame 7 and the lower structure 6 of the frame structure 2 are simultaneously manufactured on land,
By directly installing the upper frame 7 and the lower structural portion 6 of the frame structure 2 on a ground 3 having a required ground strength using a large-sized machine, stability during installation is secured,
The construction and removal of offshore formwork and shoring work, which required a great deal of time, can be greatly reduced, and the offshore construction period conventionally required can be greatly reduced. In addition, since the base portion 20 is directly installed on the ground 3,
There is no need to check the bearing capacity of the pile as in the past. Further, by setting the size of the foundation to the size corresponding to the soil bearing capacity of the ground, application to various types of ground becomes possible.
【0027】また、本実施形態においては、縦鋼管12
の中空部にコンクリートを充填したので、縦鋼管12の
補強をするとともに、据付時の下側構造部6の安定性向
上を図ることができる。さらに、コンクリートを使用す
ることで金属材の使用量の低減を図ることができる。In the present embodiment, the vertical steel pipe 12
Since the hollow portion is filled with concrete, the vertical steel pipe 12 can be reinforced and the stability of the lower structural portion 6 at the time of installation can be improved. Further, by using concrete, the amount of metal material used can be reduced.
【0028】なお、本実施形態においては、複数のトラ
ス構造を有するフレーム構造体2により揚炭桟橋1を構
築するようにしているが、これは本発明に係る桟橋構造
が採用された一実施例であって、本発明は、揚炭桟橋に
限定されるものではなく、他の用途に用いられる水上の
桟橋や構造体に採用するものであっても良い。また、本
実施形態においては、トラス構造を構成する部材とし
て、鉛直材、水平材および斜材に鋼管を採用している
が、本発明はトラス構造を有するフレーム構造体の構成
部材に限定されるものではなく、実用上の桟橋荷重に耐
え得る強度を有するものであれば、例えば、型鋼材など
を採用するものであっても良い。なお、本発明の桟橋構
造は、上記記載や図に示す構成に限定されるものではな
く、本発明の要旨を逸脱しない範囲内において種々変更
を加え得ることは勿論である。In this embodiment, the coal unloading pier 1 is constructed by the frame structure 2 having a plurality of truss structures. This is an example in which the pier structure according to the present invention is adopted. However, the present invention is not limited to coal mining piers, but may be applied to water piers and structures used for other purposes. Further, in the present embodiment, as the members constituting the truss structure, steel pipes are used for the vertical members, the horizontal members, and the diagonal members, but the present invention is limited to the members of the frame structure having the truss structure. Instead, for example, a mold steel material or the like may be used as long as it has a strength that can withstand a practical pier load. The pier structure of the present invention is not limited to the above description and the configuration shown in the drawings, and it is needless to say that various changes can be made without departing from the gist of the present invention.
【0029】また、本実施形態においては、上側構造部
5が水上に配置されるように揚炭桟橋1を構築している
が、本発明はこの揚炭桟橋1の構成に限定されるもので
はなく、例えば、潮の干満または用途に応じて桟橋構造
が海中に没するような構成とするものであっても良く、
また、桟橋構造が常に水上に位置していたり、常に水中
に位置する状態に限定されるものではない。すなわち、
本発明の要旨を逸脱しない範囲内において種々の構成変
更を加え得ることは勿論である。Further, in the present embodiment, the unloading pier 1 is constructed so that the upper structure portion 5 is disposed on the water, but the present invention is not limited to the configuration of the unloading pier 1. Without, for example, the pier structure may be configured to sink into the sea depending on the ebb and flow of the tide or the use,
Further, the pier structure is not limited to a state where the pier structure is always located on the water or is always located in the water. That is,
Of course, various configuration changes can be made without departing from the spirit of the present invention.
【0030】[0030]
【発明の効果】以上、説明したように本発明の請求項1
〜5記載の桟橋構造によれば、桟橋のフレーム構造を、
トラス構造を有する枠体で構成して、基礎部の構造を直
接設置型とすることで、水上における施工作業を低減し
て海上施工期間の短縮を図り、各種の地盤へ対応可能な
桟橋構造が可能となるとともに、桟橋設置箇所の環境へ
の負荷の低減を実現できる。すなわち、本発明は、水平
力に対しては基礎フーチングのコンクリートと鋼材の摩
擦力で対抗させ、鉛直力に対しては、地盤の地耐力によ
り対応する構造であり、従来の杭式と比較して、杭打設
作業が省略できるため、海上施工期間を短縮でき、これ
により、工事費の減縮、桟橋設置箇所における環境負荷
低減が可能となるという優れた効果を奏し得る。As described above, the first aspect of the present invention is as described above.
According to the pier structure according to any one of the above-described embodiments, the frame structure of the pier is
A pier structure that can be used for various types of ground by reducing the construction work on the water and shortening the construction work on the sea by constructing a frame with a truss structure and directly installing the foundation structure It becomes possible, and it is possible to reduce the load on the environment where the pier is installed. In other words, the present invention has a structure in which the horizontal force is counteracted by the frictional force between the concrete and steel of the foundation footing, and the vertical force is responded to by the soil bearing capacity of the ground. Since the pile driving operation can be omitted, the construction period at sea can be shortened, and thereby, an excellent effect that the construction cost can be reduced and the environmental load at the pier installation location can be reduced can be achieved.
【図1】本発明の実施形態に係る揚炭桟橋の全体の構成
を示す側面図である。FIG. 1 is a side view showing the entire configuration of a coal pier according to an embodiment of the present invention.
【図2】前記揚炭桟橋の全体の構成を示す平面図であ
る。FIG. 2 is a plan view showing the overall configuration of the coal pier.
【図3】前記揚炭桟橋の1ブロックのフレーム構造体の
構成を示す平面図である。FIG. 3 is a plan view showing a configuration of a frame structure of one block of the coal pier.
【図4】図3のA−A断面矢視図である。FIG. 4 is a sectional view taken along the line AA of FIG. 3;
【図5】図3のB−B断面矢視図である。FIG. 5 is a sectional view taken along the line BB in FIG. 3;
【図6】本実施形態に係る床板の構成を示す断面詳細図
である。FIG. 6 is a detailed sectional view showing a configuration of a floor panel according to the embodiment.
【図7】揚炭桟橋の1ブロックのフレーム構造体の構成
を示す概略図である。FIG. 7 is a schematic diagram showing a configuration of a frame structure of one block of the coal unloading pier.
【図8】前記フレーム構造体の床板、基礎部の施工状態
を示す概略図である。FIG. 8 is a schematic view showing a construction state of a floor plate and a foundation of the frame structure.
【図9】本実施形態に係る揚炭桟橋の使用状況の一例を
示す概略図である。FIG. 9 is a schematic diagram showing an example of a usage state of the coal unloading pier according to the present embodiment.
【符号の説明】 1 揚炭桟橋 2、2a、2b フレーム構造体 3 地盤 4 水面 5 上側構造部 6 下側構造部 7 上側枠体 8、8a、8b 床板 9 コンクリート 10 プレキャスト板 12 縦鋼管 13 横鋼管 14a、14b、14c 斜め鋼管 15 下側枠体 20 基礎部 20a コンクリート[Description of Signs] 1 Unloading pier 2, 2a, 2b Frame structure 3 Ground 4 Water surface 5 Upper structure 6 Lower structure 7 Upper frame 8, 8a, 8b Floor plate 9 Concrete 10 Precast plate 12 Vertical steel pipe 13 Horizontal Steel pipes 14a, 14b, 14c Diagonal steel pipes 15 Lower frame 20 Base 20a Concrete
Claims (5)
して水上または水中に構築される桟橋であって、 前記フレーム構造体は、水上または水中に位置する上側
構造部と、水上または水中に位置する下側構造部とを備
え、鉛直材、水平材および斜材を有するブロック単位で
トラス構造を有する枠体で構成され、 前記上側構造部は、上部に床板が設けられ、隣り合う他
のフレーム構造体同士の床板を隣接配置し、 前記下側構造部は、下端部に水中地盤上に設置する基礎
部が設けられたことを特徴とする桟橋構造。1. A pier constructed on a water or underwater by connecting a plurality of frame structures in a horizontal direction, wherein the frame structure includes an upper structure portion located on or under water, and an upper structure on or under water. A vertical structure, a frame having a truss structure in units of blocks having a horizontal material and a diagonal material, and the upper structure portion is provided with a floor plate at an upper portion thereof, and is provided with an adjacent structure. The pier structure, wherein floor boards of the frame structures are arranged adjacent to each other, and the lower structural portion is provided with a base portion installed on the underwater ground at a lower end portion.
単位で水上運搬されて据付されることを特徴とする請求
項1に記載の桟橋構造。2. The pier structure according to claim 1, wherein the frame body is manufactured on the ground, and is transported and installed on the water in block units.
置面積を有することを特徴とする請求項1または2に記
載の桟橋構造。3. The pier structure according to claim 1, wherein the foundation has an installation area corresponding to the ground strength of the ground.
中空部にコンクリートを充填することを特徴とする請求
項1乃至3のうちの何れか一項に記載の桟橋構造。4. The pier structure according to claim 1, wherein the hollow portion is filled with concrete by using a metal tube as the vertical member.
は水中に構築後、該下側構造部の上部に設けられた上側
枠体の上部に構造部材の機能を持つプレキャスト板を設
置して、該プレキャスト板の上部にコンクリートを打設
することを特徴とする請求項1乃至4に記載の桟橋構
造。5. The floorboard, after the lower structure is constructed on water or in water, a precast plate having a function of a structural member is installed on an upper frame provided on the lower structure. 5. The pier structure according to claim 1, wherein concrete is cast on the upper part of the precast plate.
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JP2001001576A JP4740461B2 (en) | 2001-01-09 | 2001-01-09 | Pier structure |
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JP2001001576A JP4740461B2 (en) | 2001-01-09 | 2001-01-09 | Pier structure |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05295800A (en) * | 1992-04-16 | 1993-11-09 | Nippon Steel Corp | Pipe junction structure |
GB2277547A (en) * | 1993-04-29 | 1994-11-02 | Kvaerner Earl & Wright | Foundation with downwardly extending skirt |
JPH07207641A (en) * | 1994-01-21 | 1995-08-08 | Pooto Consultant Kk | Pier |
GB2302355A (en) * | 1995-06-16 | 1997-01-15 | Marine Structure Comsultants | Bottom supporting construction for a leg end of a displaceable jack-up platform |
JP2000017647A (en) * | 1998-07-01 | 2000-01-18 | Kansai Electric Power Co Inc:The | Installation method of underwater structure |
JP2000017645A (en) * | 1998-07-01 | 2000-01-18 | Kansai Electric Power Co Inc:The | Installation method of underwater structure |
JP2000248526A (en) * | 1999-03-03 | 2000-09-12 | Nippon Steel Corp | Pier structure and constructing method thereof |
-
2001
- 2001-01-09 JP JP2001001576A patent/JP4740461B2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05295800A (en) * | 1992-04-16 | 1993-11-09 | Nippon Steel Corp | Pipe junction structure |
GB2277547A (en) * | 1993-04-29 | 1994-11-02 | Kvaerner Earl & Wright | Foundation with downwardly extending skirt |
JPH07207641A (en) * | 1994-01-21 | 1995-08-08 | Pooto Consultant Kk | Pier |
GB2302355A (en) * | 1995-06-16 | 1997-01-15 | Marine Structure Comsultants | Bottom supporting construction for a leg end of a displaceable jack-up platform |
JP2000017647A (en) * | 1998-07-01 | 2000-01-18 | Kansai Electric Power Co Inc:The | Installation method of underwater structure |
JP2000017645A (en) * | 1998-07-01 | 2000-01-18 | Kansai Electric Power Co Inc:The | Installation method of underwater structure |
JP2000248526A (en) * | 1999-03-03 | 2000-09-12 | Nippon Steel Corp | Pier structure and constructing method thereof |
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