JP5923048B2 - Structure to fix heavy structure to trolley - Google Patents

Structure to fix heavy structure to trolley Download PDF

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JP5923048B2
JP5923048B2 JP2013019935A JP2013019935A JP5923048B2 JP 5923048 B2 JP5923048 B2 JP 5923048B2 JP 2013019935 A JP2013019935 A JP 2013019935A JP 2013019935 A JP2013019935 A JP 2013019935A JP 5923048 B2 JP5923048 B2 JP 5923048B2
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fixed support
fixing
trolley
heavy structure
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照二 笹野
照二 笹野
明宏 山田
明宏 山田
高橋 充
充 高橋
一弥 森
一弥 森
等 山下
等 山下
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Toa Corp
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本発明は、重量構造物の台船への固定構造に関し、特に、ジャケット型構造物等の重量構造物を台船に固定する固定支持台を小型で安価にした重量構造物の台船への固定構造に関する。   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a heavy structure to a trolley, and more particularly, to a heavy structure trolley having a small and inexpensive fixed support base for fixing a heavy structure such as a jacket type structure to the craft. It relates to a fixed structure.

岸壁・桟橋等に従来から用いられる構造として、ジャケット型構造物がある。昨今の海上コンテナターミナル基地の大水深化により、ジャケット型構造物も巨大化している。ジャケット型構造物は岸壁・桟橋の延長に対して分割されており、例えば一基当たり500トンと巨大である。ジャケット型構造物は工場で製造され、台船と呼ばれる船に搭載されて据え付け箇所へ輸送される。ジャケット型構造物は、台船の甲板上の複数の固定支持台上に、安全性の観点から強固に固定されて輸送される。   As a structure conventionally used for a quay and a pier, there is a jacket type structure. Due to the recent deepening of water at the offshore container terminal base, jacket-type structures are also becoming larger. The jacket-type structure is divided with respect to the extension of the quay / pier, and is huge, for example, 500 tons per unit. The jacket-type structure is manufactured in a factory, mounted on a ship called a trolley, and transported to the installation site. The jacket-type structure is transported while being firmly fixed on a plurality of fixed support bases on the deck of the carriage from the viewpoint of safety.

ジャケット型構造物は高さが高く、重心も高いので不安定であり、このためにジャケット型構造物に適合する固定支持台が作られる。ジャケット型構造物の複数の脚柱は、この固定支持台に溶接等で固定される。台船は空洞であり、特に甲板への局部的な荷重に弱いので、固定支持台は曲げ、圧縮等に耐え得るように、かなり強固に作られる。台船は、日本の周辺では、輸送中に6〜7秒/サイクルのローリング(船が進行方向に対して横ゆれすること)が発生する。このために、曲げ、圧縮等の荷重が固定支持台に繰り返しかかることになる。従って、固定支持台は、安全性を高めるために断面係数を大きくして頑丈に作る必要があり、必然的に大型化し、その結果としてコストも高いものになる。   The jacket-type structure is unstable because it has a high height and a high center of gravity, and thus a fixed support base that fits the jacket-type structure is created. The plurality of leg columns of the jacket type structure are fixed to the fixed support base by welding or the like. Since the carrier is hollow and is particularly vulnerable to local loads on the deck, the fixed support is made fairly strong so that it can withstand bending, compression and the like. The trolleys roll around 6 to 7 seconds / cycle during transportation in the vicinity of Japan (the ship sways in the direction of travel). For this reason, loads such as bending and compression are repeatedly applied to the fixed support base. Therefore, the fixed support base needs to be made strong by increasing the section modulus in order to enhance safety, and the fixed support base inevitably increases in size, resulting in high cost.

特許文献1のジャケット型構造物の台船への固定方法は、台船の前方に仮脚部を形成し、この仮脚部にジャケット型構造物を設置して、ジャケット型構造物の天端を水平にして輸送することにより、輸送中のジャケット型構造物の甲板からの突出高さを低くしている。しかしながら、特許文献1のジャケット型構造物の台船への固定方法は、台船の前方に開口部を形成するという特殊な構造であるため、台船のコストが高くなり、台船の用途が制限されるという問題があった。   In the method of fixing the jacket type structure to the trolley of Patent Document 1, a temporary leg portion is formed in front of the trolley, the jacket type structure is installed on the temporary leg portion, and the top of the jacket type structure is arranged. By horizontally transporting, the projecting height from the deck of the jacket type structure being transported is lowered. However, since the method for fixing the jacket-type structure to the trolley in Patent Document 1 is a special structure in which an opening is formed in front of the trolley, the cost of the trolley increases, and the use of the trolley is reduced. There was a problem of being restricted.

特開2005−9070号公報JP-A-2005-9070

本発明の目的は、台船へジャケット型構造物等の重量構造物を固定する固定支持台に作用する荷重を小さくして、固定支持台を小型で安価にした重量構造物の台船への固定構造を提供することにある。   An object of the present invention is to reduce the load acting on a fixed support base for fixing a heavy structure such as a jacket type structure to a trolley, thereby reducing the size of the fixed support pedestal to a pedestal of a heavy structure. It is to provide a fixed structure.

前記課題は以下の手段によって解決される。
すなわち、本発明1の重量構造物の台船への固定構造は、重量構造物を台船により据え付け箇所まで輸送する為に、前記台船の甲板上に前記重量構造物を固定する固定構造において、
前記台船の甲板上に前記重量構造物の複数の脚柱に対応して固定され、水平面を有する複数の固定支持台と、
前記固定支持台の上面と前記重量構造物の脚柱の下面との間に介挿され、前記重量構造物の鉛直荷重を支持するとともに、前記重量構造物と前記固定支持台との間の相対的な移動に追従して剪断変形する弾性支承部とを備え、
前記弾性支承部は、ゴム層の上下に金属板を積層して接着した一体構造であり、前記固定支持台の上面と前記重量構造物の前記脚柱の下面に着脱可能に取り付けられている
ことを特徴とする。
The said subject is solved by the following means.
That is, the structure for fixing the heavy structure to the trolley according to the first aspect of the present invention is a fixing structure for fixing the heavy structure on the deck of the craft to transport the heavy structure to the installation location by the trolley. ,
A plurality of fixed support bases fixed on the deck of the carriage corresponding to a plurality of pedestals of the heavy structure , and having a horizontal plane ;
It is inserted between the upper surface of the fixed support base and the lower surface of the pedestal of the heavy structure, and supports the vertical load of the heavy structure, and the relative relationship between the heavy structure and the fixed support base. An elastic bearing part that shears and deforms following a typical movement,
The elastic support portion is an integrated structure in which metal plates are laminated and bonded on the upper and lower sides of a rubber layer, and are detachably attached to the upper surface of the fixed support base and the lower surface of the pedestal of the heavy structure. It is characterized by.

本発明の重量構造物の台船への固定構造は、本発明において、前記重量構造物がジャケット型構造物であることを特徴とする。 The structure for fixing a heavy structure to a trolley according to the present invention 2 is characterized in that, in the present invention 1 , the heavy structure is a jacket-type structure.

本発明の重量構造物の台船への固定構造は、台船の甲板上に重量構造物の複数の脚柱に対応して複数の固定支持台を固定し、固定支持台の上面と重量構造物の脚柱の下面との間に、重量構造物の鉛直荷重を支持するとともに、重量構造物と固定支持台との間の相対的な移動に追従して剪断変形する弾性支承部を介挿している。従って、弾性支承部は、重量構造物と固定支持台との間の相対的な移動に追従して剪断変形し、固定支持台に作用する荷重を軽減することができる。そのため固定支持台剛性を小さく小型で軽量に形成することができるため、固定支持台を安価に製造することが可能となる。 Fixing structure of the barge of heavy construction of the present invention, corresponding to a plurality of pedestal heavy construction on the deck of the barge by fixing a plurality of fixing support, fixing support the top and heavy construction An elastic bearing that supports the vertical load of the heavy structure and shears following the relative movement between the heavy structure and the fixed support base is interposed between the lower surface of the pillars of the object. ing. Therefore, the elastic support portion can be sheared and deformed following the relative movement between the heavy structure and the fixed support base, and the load acting on the fixed support base can be reduced. Therefore, the rigidity of the fixed support base can be made small and light, and the fixed support base can be manufactured at low cost.

図1は、本発明の実施の形態の重量構造物を台船へ固定した状態を示す進行方向に対して側面となる側面図である。FIG. 1 is a side view that is a side view with respect to a traveling direction showing a state in which a heavy structure according to an embodiment of the present invention is fixed to a carriage. 図2は図1のP部を示し、一部を断面した拡大正面図である。FIG. 2 is an enlarged front view showing a part P of FIG. 図3は図2のA矢視図である。3 is a view taken in the direction of arrow A in FIG. 図4(a)は図2の弾性支承部を示す平面図、図4(b)は図4(a)の一部を断面した側面図である。FIG. 4A is a plan view showing the elastic support portion of FIG. 2, and FIG. 4B is a side view of a part of FIG. 4A.

以下、本発明の実施の形態を図面に基づいて説明する。図1は、本発明の実施の形態の重量構造物を台船へ固定した状態を示す進行方向に対して側面となる側面図である。図1に示すように、工場で製造された重量構造物としてのジャケット型構造物1は、台船2の甲板21上に固定されて、据え付け箇所まで輸送される。ジャケット型構造物1は、海底に打設した複数の基礎杭に外嵌される鋼管製の複数(本発明の実施の形態では8本)の脚柱11を有し、脚柱11を複数の斜材12や水平材13で結合して、剛性の大きな立体鋼管トラス構造体を形成している。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view that is a side view with respect to a traveling direction showing a state in which a heavy structure according to an embodiment of the present invention is fixed to a carriage. As shown in FIG. 1, a jacket-type structure 1 as a heavy structure manufactured in a factory is fixed on a deck 21 of a carriage 2 and transported to an installation location. The jacket type structure 1 has a plurality of (8 in the embodiment of the present invention) steel pillars 11 that are externally fitted to a plurality of foundation piles placed on the sea floor. The three-dimensional steel pipe truss structure having high rigidity is formed by joining with the diagonal members 12 and the horizontal members 13.

台船2の甲板21上には、複数の固定支持台3が溶接して固定され、この固定支持台3上にジャケット型構造物1の脚柱11が各々固定される。固定支持台3は、水平な鋼板製の上板と下板の間を、垂直な複数の縦板で溶接して形成され、断面係数を大きくして頑丈に形成されている。図2は図1のP部を示し、一部を断面した拡大正面図、図3は図2のA矢視図、図4(a)は図2の弾性支承部を示す平面図、図4(b)は図4(a)の一部を断面した側面図である。   A plurality of fixed support bases 3 are fixed by welding on the deck 21 of the carriage 2, and the pillars 11 of the jacket type structure 1 are fixed on the fixed support base 3. The fixed support base 3 is formed by welding a plurality of vertical vertical plates between an upper plate and a lower plate made of a horizontal steel plate, and is formed firmly with a large section modulus. 2 is an enlarged front view showing a part P of FIG. 1, a partial cross-sectional view, FIG. 3 is a view taken along arrow A in FIG. 2, FIG. 4A is a plan view showing the elastic bearing part in FIG. FIG. 5B is a side view of a part of FIG.

図2から図4に示すように、8個の固定支持台3の上面31とジャケット型構造物1の脚柱11の下面111との間には、弾性支承部(弾性すべり支承部)4が介挿されている。すなわち、固定支持台3の上面31上に、鋼板製で矩形板状のベースプレート5を溶接し、このベースプレート5の上面に、鋼板製で矩形板状の下沓51をボルト52で固定している。   As shown in FIGS. 2 to 4, an elastic bearing portion (elastic sliding bearing portion) 4 is provided between the upper surfaces 31 of the eight fixed support bases 3 and the lower surface 111 of the pedestal 11 of the jacket type structure 1. It is inserted. That is, a rectangular plate-shaped base plate 5 made of a steel plate is welded on the upper surface 31 of the fixed support base 3, and a rectangular plate-shaped lower rod 51 made of a steel plate is fixed to the upper surface of the base plate 5 with a bolt 52. .

また、脚柱11の下面111を、鋼板製で矩形板状のソールプレート6の上面61に溶接(仮溶接)し、このソールプレート6の下面62に、鋼板製で矩形板状の上沓63をボルト64で固定している。この上沓63と下沓51との間に、ゴム層41をもつ弾性支承部4が介挿されている。弾性支承部4は、上沓63にボルト66で固定され、下沓51にボルト53で固定されている。ソールプレート6は、脚柱11の直径よりも大きく形成している。ソールプレート6の上面61には、脚柱11の外周面に沿って複数(8個)のフランジ65が溶接して固定され、脚柱11の外周面はフランジ65に溶接(仮溶接)して固定される。   Further, the lower surface 111 of the pedestal 11 is welded (temporarily welded) to the upper surface 61 of the rectangular plate-shaped sole plate 6 made of a steel plate, and the rectangular plate-shaped upper rod 63 made of a steel plate is welded to the lower surface 62 of the sole plate 6. Are fixed with bolts 64. An elastic support portion 4 having a rubber layer 41 is inserted between the upper collar 63 and the lower collar 51. The elastic support portion 4 is fixed to the upper collar 63 with a bolt 66 and is secured to the lower collar 51 with a bolt 53. The sole plate 6 is formed larger than the diameter of the pedestal 11. A plurality of (eight) flanges 65 are welded and fixed to the upper surface 61 of the sole plate 6 along the outer peripheral surface of the leg column 11, and the outer peripheral surface of the leg column 11 is welded (temporarily welded) to the flange 65. Fixed.

弾性支承部4は、ゴム層41の上下に鋼板製の金属板42、43を積層して接着した一体構造である。したがって、ゴム層41の部分が剪断変形可能である。この金属板42の上面と上沓63との間、および金属板43の下面と下沓51との間には、相対的な滑り移動を拘束する結合手段を設けている。この結合手段は、金属板42と上沓63との間の円筒状の凹所、および金属板43と下沓51との間の円筒状の凹所に差し渡して嵌め込まれた円盤状の剪断キー7、7で構成されている。   The elastic support portion 4 has an integrated structure in which metal plates 42 and 43 made of steel plates are laminated and bonded to the upper and lower sides of the rubber layer 41. Therefore, the rubber layer 41 can be sheared and deformed. Between the upper surface of the metal plate 42 and the upper collar 63 and between the lower surface of the metal plate 43 and the lower collar 51, coupling means for restraining relative sliding movement is provided. The coupling means includes a disk-shaped shear key that is fitted into a cylindrical recess between the metal plate 42 and the upper flange 63 and a cylindrical recess between the metal plate 43 and the lower flange 51. 7 and 7.

このようにして台船2の甲板21上に固定されたジャケット型構造物1は、台船2によって、据え付け箇所まで輸送される。ジャケット型構造物1は、ソールプレート6と脚柱11との間の仮溶接を溶かして外した後、クレーンで吊って、海底に打設した複数の基礎杭に外嵌して据え付けられる。   The jacket-type structure 1 fixed on the deck 21 of the carriage 2 in this way is transported by the carriage 2 to the installation location. The jacket-type structure 1 is melted and removed from the temporary welding between the sole plate 6 and the pedestal 11, and then suspended by a crane and externally fitted to a plurality of foundation piles placed on the seabed.

上記したように、本発明の実施の形態の弾性支承部4は、ジャケット型構造物1の鉛直荷重を支持するとともに、ジャケット型構造物1と固定支持台3との間の相対的な移動(輸送中の台船2のローリングによって生じる)に追従して剪断変形し、固定支持台3に作用する荷重を軽減することができる。   As described above, the elastic support portion 4 according to the embodiment of the present invention supports the vertical load of the jacket type structure 1 and the relative movement between the jacket type structure 1 and the fixed support base 3 ( The load acting on the fixed support table 3 can be reduced by following the shear deformation caused by the rolling of the carrier 2 during transportation.

弾性支承部4が無い場合と有る場合の固定支持台3に加わる荷重を比較した、本発明の発明者の計算では、X軸方向(台船の前後方向)最大水平力が422KNから275KNに、Y軸方向(台船の左右方向)最大水平力が593KNから358KNに、X軸周り最大モーメントが1857KN・mから451KN・mに、Y軸周り最大モーメントが1066KN・mから183KN・mに各々軽減される。その結果、固定支持台3を剛性を小さく小型で軽量に形成することができるため、固定支持台3を安価に製造することが可能となる。また、弾性支承部4は、全ての固定支持台3に共通して使用し、かつ、複数回の据え付け工事に繰り返し使用することができるため、経済的である。   According to the calculation of the inventor of the present invention, which compares the load applied to the fixed support base 3 with and without the elastic support portion 4, the maximum horizontal force in the X-axis direction (the longitudinal direction of the carriage) is changed from 422KN to 275KN. The maximum horizontal force in the Y-axis direction (horizontal direction of the carriage) is reduced from 593KN to 358KN, the maximum moment around the X-axis is reduced from 1857KN · m to 451KN · m, and the maximum moment around the Y-axis is reduced from 1066KN · m to 183KN · m. Is done. As a result, since the fixed support base 3 can be formed with small rigidity and small size, the fixed support base 3 can be manufactured at low cost. In addition, the elastic support portion 4 is economical because it is used in common for all the fixed support bases 3 and can be repeatedly used for a plurality of installation works.

以上、本発明の実施の形態を説明したが、本発明はこの実施の形態に限定されることはない。本発明の目的、趣旨を逸脱しない範囲内での変更が可能なことはいうまでもない。例えば、脚柱11の下面111と弾性支承部4との間にピン支承部を介挿してもよい。具体的には、図2のソールプレート6と弾性支承部4の上沓63との間に、円柱状のピンを配置し、脚柱11が円柱状のピンを中心にして、上沓63に回転可能に支承される構造を採用してもよい。また、前述した本発明の実施の形態では、重量構造物としてジャケット型構造物に適用した例を説明したが、建物用構造物、橋梁、鉄橋等の他の重量構造物にも適用することができる。   Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. Needless to say, changes can be made without departing from the scope and spirit of the present invention. For example, a pin support portion may be interposed between the lower surface 111 of the pedestal 11 and the elastic support portion 4. Specifically, a cylindrical pin is disposed between the sole plate 6 of FIG. 2 and the upper collar 63 of the elastic support portion 4, and the pedestal 11 is formed on the upper collar 63 around the cylindrical pin. You may employ | adopt the structure supported rotatably. In the above-described embodiment of the present invention, an example in which the structure is applied to a jacket-type structure as a heavy structure has been described. However, the present invention can also be applied to other heavy structures such as a building structure, a bridge, and an iron bridge. it can.

1…ジャケット型構造物
11…脚柱
111…下面
12…斜材
13…水平材
2…台船
21…甲板
3…固定支持台
31…上面
4…弾性支承部(弾性すべり支承部)
41…ゴム層
42、43…金属板
5…ベースプレート
51…下沓
52…ボルト
53…ボルト
6…ソールプレート
61…上面
62…下面
63…上沓
64…ボルト
65…フランジ
66…ボルト
7…剪断キー
DESCRIPTION OF SYMBOLS 1 ... Jacket-type structure 11 ... Leg pillar 111 ... Lower surface 12 ... Diagonal material 13 ... Horizontal material 2 ... Base boat 21 ... Deck 3 ... Fixed support stand 31 ... Upper surface 4 ... Elastic bearing part (elastic sliding bearing part)
41 ... Rubber layers 42, 43 ... Metal plate 5 ... Base plate 51 ... Lower collar 52 ... Bolt 53 ... Bolt 6 ... Sole plate 61 ... Upper surface 62 ... Lower surface 63 ... Upper collar 64 ... Bolt 65 ... Flange 66 ... Bolt 7 ... Shear key

Claims (2)

重量構造物を台船により据え付け箇所まで輸送する為に、前記台船の甲板上に前記重量構造物を固定する固定構造において、
前記台船の甲板上に前記重量構造物の複数の脚柱に対応して固定され、水平面を有する複数の固定支持台と、
前記固定支持台の上面と前記重量構造物の脚柱の下面との間に介挿され、前記重量構造物の鉛直荷重を支持するとともに、前記重量構造物と前記固定支持台との間の相対的な移動に追従して剪断変形する弾性支承部とを備え、
前記弾性支承部は、ゴム層の上下に金属板を積層して接着した一体構造であり、前記固定支持台の上面と前記重量構造物の前記脚柱の下面に着脱可能に取り付けられている
ことを特徴とする重量構造物の台船への固定構造。
In order to transport the heavy structure to the installation location by the trolley, in the fixing structure for fixing the heavy structure on the deck of the trolley,
A plurality of fixed support bases fixed on the deck of the carriage corresponding to a plurality of pedestals of the heavy structure , and having a horizontal plane ;
It is inserted between the upper surface of the fixed support base and the lower surface of the pedestal of the heavy structure, and supports the vertical load of the heavy structure, and the relative relationship between the heavy structure and the fixed support base. An elastic bearing part that shears and deforms following a typical movement,
The elastic support portion is an integrated structure in which metal plates are laminated and bonded on the upper and lower sides of a rubber layer, and are detachably attached to the upper surface of the fixed support base and the lower surface of the pedestal of the heavy structure. A structure for fixing heavy structures to trolleys.
請求項1に記載の重量構造物の台船への固定構造において、
前記弾性支承部は、
前記重量構造物がジャケット型構造物である
ことを特徴とする重量構造物の台船への固定構造。
In the structure for fixing the heavy structure according to claim 1 to the carriage,
The elastic bearing part is
The heavy structure is a jacket-type structure. A structure for fixing a heavy structure to a trolley.
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Publication number Priority date Publication date Assignee Title
JPS58143784U (en) * 1982-03-24 1983-09-28 三菱重工業株式会社 Vibration isolation device for ship superstructure
JPS6072398U (en) * 1983-10-26 1985-05-22 日本鋼管株式会社 Offshore deck module barge loading structure
JPS60215491A (en) * 1984-04-11 1985-10-28 Mitsubishi Heavy Ind Ltd Transportasion ship
FR2779754B1 (en) * 1998-06-12 2000-08-25 Technip Geoproduction DEVICE FOR TRANSPORTING AND LAYING A BRIDGE OF AN OIL PLATFORM FOR EXPLOITATION AT SEA

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