JP2011208395A - Structure and method for fixing planking for communication bridge between quay wall and floating body - Google Patents

Structure and method for fixing planking for communication bridge between quay wall and floating body Download PDF

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JP2011208395A
JP2011208395A JP2010075754A JP2010075754A JP2011208395A JP 2011208395 A JP2011208395 A JP 2011208395A JP 2010075754 A JP2010075754 A JP 2010075754A JP 2010075754 A JP2010075754 A JP 2010075754A JP 2011208395 A JP2011208395 A JP 2011208395A
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concrete
floating body
connecting bridge
welding
positioning groove
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JP5231473B2 (en
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Hirofumi Mongai
宏文 門乢
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Mitsui Engineering and Shipbuilding Co Ltd
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Mitsui Engineering and Shipbuilding Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a structure and a method for fixing a planking for a communication bridge between a quay wall and a floating body minimizing the influence of welding heat in view of causing a crack in concrete by the welding heat when fixing the steel planking laid at the floating body connected to the floating body side end of the communication bridge for connecting the floating body installed on the sea surface, to the quay wall.SOLUTION: Position anchors 21 are placed on a steel beam 2b, and concrete 12 is placed in a state of exposing upper end template parts 21a (Fig.2). A positioning groove 22 is formed around the embedded position anchors 21, and the rear face of the planking 20 is provided with a positioning flange part 20a inserted in the positioning groove 22. Mortar 23 is filled in the positioning groove 22 to insert the positioning flange part 20a. The planking 20 and the position anchors 21 are welded through welding through-holes 20b formed in positions, coinciding with the template parts 21a of the position anchors 21, of the planking 20.

Description

この発明は、船舶を係留させる浮桟橋や、汚水池に汚水処理装置を浮遊させて設置させる浮体等のように、海面や水面の変動に応じて昇降する浮体と岸壁とに掛け渡される連絡橋の自由端部となる浮体側端部の移動を円滑に行えるよう浮体に敷設される敷板の固定構造と敷板の固定方法に関する。   This invention is a connecting bridge that spans a floating body that moves up and down according to changes in the sea surface and the water surface, such as a floating pier for mooring a ship and a floating body that floats and installs a sewage treatment device in a sewage pond. The present invention relates to a fixing structure of a floor board laid on a floating body and a fixing method of the floor board so that a floating body side end portion serving as a free end of the floor can be moved smoothly.

船舶を岸壁に係留する場合、岸壁の高さは一定であるのに対して、海面の昇降により船舶の高さ位置は潮位に応じて変動し、あるいは波高によっても常時変動している。このため、船舶を浮桟橋に係留させて、この浮桟橋と岸壁との間に連絡橋を配することにより、船員や船客等の乗員の船舶からの乗降を円滑に行えるようにしている。図５に示すように、岸壁１に対して適宜に離隔した位置に浮桟橋２を配し、岸壁１と浮桟橋２との間を連絡橋３で連絡させてある。船舶Ｓは浮桟橋２に係留される。浮桟橋２は海面に浮遊しているために、潮位や波高の変動によって昇降して、その上面が常に海面とほぼ一定の高さの位置にある。したがって、船舶Ｓの乗員は浮桟橋２との間で円滑に乗降できる。この浮桟橋２と岸壁１との間に掛け渡された前記連絡橋３の浮桟橋２側の端部は、浮桟橋３と共に昇降しながら岸壁１との架設状態が維持されるようにしてあり、乗員はこの連絡橋３により岸壁１と浮桟橋２との間を往来することができるようにしてある。   When a ship is moored to a quay, the height of the quay is constant, whereas the height position of the ship fluctuates according to the tide level due to elevation of the sea level, or constantly fluctuates depending on the wave height. For this reason, a ship is moored on a floating pier, and a connecting bridge is arranged between the floating pier and a quay, so that passengers such as sailors and passengers can get on and off from the ship smoothly. As shown in FIG. 5, a floating pier 2 is arranged at a position appropriately separated from the quay 1, and the pier 1 and the floating pier 2 are connected by a connecting bridge 3. The ship S is moored at the floating pier 2. Since the floating pier 2 is floating on the sea surface, it rises and falls due to fluctuations in the tide level and wave height, and its upper surface is always at a position that is almost constant from the sea surface. Therefore, crew members of the ship S can smoothly get on and off the floating pier 2. The end of the connecting bridge 3 between the floating pier 2 and the quay 1 on the floating pier 2 side is maintained with the pier 1 while being lifted and lowered together with the floating pier 3. The occupant can travel between the quay 1 and the floating pier 2 by the connecting bridge 3.

一方、連絡橋３は浮桟橋２の昇降に応じて該浮桟橋２と連繋した側の端部が昇降する必要がある。図６は岸壁１と浮桟橋２とを連絡橋３で連絡させた状態の側面図であり、連絡橋３の岸壁１側の端部は揺動軸5aにより連絡橋３を揺動可能に支持する揺動機構５を介して連繋させてある。連絡橋３の浮桟橋２側の端部は、連絡橋２が前記揺動軸5aを中心として揺動する場合には、浮桟橋２との連繋位置が変化するから、この変化を許容するように浮桟橋２と連繋させる必要がある。このため、連絡橋３の浮桟橋２側の端部には、図６及び図７に示すように、回動軸6aを中心として回動する支持ローラ6bを備えた移動機構６を介して連繋させてある。すなわち、浮桟橋２の揺動に応じて支持ローラ6bが浮桟橋２の上面を転動することにより連絡橋３の揺動が許容されるようにしてある。なお、連絡橋３の両端部には、浮桟橋２の昇降によっても該連絡橋３と岸壁１または浮桟橋２とのそれぞれの間に間隙が生じないように、連絡橋３の両端部のそれぞれにフラップ７が揺動自在に設けられており、該フラップ７の先端部が岸壁１と浮桟橋２とに連繋した状態が保たれるようにしてある。   On the other hand, the connecting bridge 3 needs to move up and down at the end connected to the floating pier 2 in accordance with the elevation of the floating pier 2. FIG. 6 is a side view of the state where the quay 1 and the floating pier 2 are connected to each other by the connecting bridge 3, and the end of the connecting bridge 3 on the quay 1 side is supported by the swing shaft 5a so that the connecting bridge 3 can swing. It is connected via the swinging mechanism 5 that moves. The end of the connecting bridge 3 on the floating pier 2 side is allowed to change because the connecting position of the connecting bridge 2 with the floating pier 2 changes when the connecting bridge 2 swings around the swing shaft 5a. It is necessary to connect to the floating pier 2. For this reason, as shown in FIG.6 and FIG.7, it connects with the edge part by the side of the floating bridge 2 of the connecting bridge 3 via the moving mechanism 6 provided with the support roller 6b rotated centering around the rotating shaft 6a. I'm allowed. That is, the support roller 6b rolls on the upper surface of the floating bridge 2 according to the swing of the floating bridge 2 so that the connecting bridge 3 is allowed to swing. It should be noted that both ends of the connecting bridge 3 are arranged so that no gap is formed between the connecting bridge 3 and the quay 1 or the floating pier 2 even when the floating bridge 2 is moved up and down. The flap 7 is provided so as to be swingable, and the tip of the flap 7 is kept connected to the quay 1 and the floating pier 2.

この種の連絡橋を支持する構造として、例えば、特許文献１に開示された浮体用連絡橋がある。   As a structure for supporting this kind of connecting bridge, for example, there is a connecting bridge for floating bodies disclosed in Patent Document 1.

ところで、浮桟橋２は鋼桁を組み合わせた内部構造の周囲にコンクリートを打ち込んだ構造とされており、上面がコンクリート面となっている。このコンクリート面を鋼製の支持ローラ6bが転動すると、コンクリート面を損傷させてしまうそれがある。このため、支持ローラ6bが転動する範囲には、図７に示すように鋼製の敷板８が敷設されている。なお、前記特許文献１には、円筒形ローラの外周面と接触する水平正面を有する敷板が開示されている。   By the way, the floating pier 2 has a structure in which concrete is driven around an internal structure in which steel girders are combined, and the upper surface is a concrete surface. If the steel support roller 6b rolls on the concrete surface, the concrete surface may be damaged. For this reason, in the range where the supporting roller 6b rolls, a steel floor plate 8 is laid as shown in FIG. Patent Document 1 discloses a floor plate having a horizontal front surface that comes into contact with the outer peripheral surface of a cylindrical roller.

図３及び図４は従来の敷板８の固定構造を示しており、図４は該敷板８を固定する施工手順を示している。図４(ａ)に示すように、浮桟橋２の内部構造となる鋼桁2bの上面にテンプレート10を載置させ、型枠11を配する。図４(ｂ)に示すように、型枠11にコンクリート12を打ち込んで養生すると、図３に示すように、浮桟橋２の上面にテンプレート10が露呈することになる。このテンプレート10に前記敷板８を載置させる。このとき、図４(ｃ)に示すように、敷板８の側部にテンプレート10の外周端部が露呈するように、該テンプレート10と敷板８との寸法を定めてあり、敷板８の周面とテンプレート10との上面とをすみ肉溶接13を施して、該敷板８をテンプレート10に固定するようにしている。その後、敷板８とコンクリート12との間にできた間隙にモルタルを注入してこの間隙を埋める。   3 and 4 show a conventional fixing structure of the floor board 8, and FIG. 4 shows a construction procedure for fixing the floor board 8. As shown in FIG. As shown in FIG. 4A, the template 10 is placed on the upper surface of the steel beam 2b which is the internal structure of the floating pier 2 and the mold 11 is arranged. As shown in FIG. 4 (b), when concrete 12 is driven into the mold 11 and cured, the template 10 is exposed on the upper surface of the floating pier 2 as shown in FIG. The floor plate 8 is placed on the template 10. At this time, as shown in FIG. 4 (c), the dimensions of the template 10 and the base plate 8 are determined so that the outer peripheral end of the template 10 is exposed on the side of the base plate 8. And the upper surface of the template 10 are subjected to fillet welding 13 to fix the floor plate 8 to the template 10. Thereafter, mortar is poured into the gap formed between the floor plate 8 and the concrete 12 to fill this gap.

特開２００５−２２６２９３号公報JP 2005-226293 A

前述した固定構造では、敷板８をテンプレート10に固定する際には、すみ肉溶接13を敷板８の側端面の全周にわたって施すことから、コンクリート12が溶接による熱の影響を受け易い。この種の熱の影響は、図４(ｄ)に示すように、テンプレート10とコンクリート12との接合部にひび割れＣを生じさせるおそれがある。海水や雨水がこのひび割れ部分から浸入してコンクリート12の内部を腐食させるおそれがあるから、ひび割れが発生した場合には早急に補修を行う必要がある。このため、補修の要否を確認するための点検作業回数が増加し、また補修を行う必要もあることから、補修に要するコストが大きいものとなっている。   In the fixing structure described above, when the base plate 8 is fixed to the template 10, the fillet weld 13 is applied over the entire circumference of the side end surface of the base plate 8, so that the concrete 12 is easily affected by heat from welding. This kind of heat influence may cause a crack C at the joint between the template 10 and the concrete 12 as shown in FIG. Since seawater or rainwater may enter from the cracked portion and corrode the inside of the concrete 12, if a crack occurs, it is necessary to repair it immediately. For this reason, the number of inspection operations for confirming the necessity of repair increases, and it is also necessary to perform repairs. Therefore, the cost required for repairs is high.

そこで、この発明は、敷板を固定する際の溶接の熱がコンクリートに極力影響を与えることがないようにした岸壁と浮体との連絡橋用敷板の固定構造を提供することを目的としている。   In view of this, an object of the present invention is to provide a fixing structure for a connecting sill for a connecting bridge between a quay and a floating body so that the heat of welding when fixing the siding does not affect concrete as much as possible.

前記目的を達成するための技術的手段として、この発明に係る岸壁と浮体との連絡橋用敷板の固定構造は、コンクリート製の浮体に敷設されて連絡橋の自由側端部の移動を円滑に行わせる連絡橋用敷板の固定構造において、前記コンクリートに埋設させた位置アンカーと、前記位置アンカーの周囲のコンクリート面に形成した位置決め溝と、前記敷板の裏面の周縁部に突設した、前記位置決め溝に挿入する位置決めフランジ部と、前記位置決めフランジが前記位置決め溝に挿入された状態の前記敷板の一部であって、位置アンカーと合致する位置に形成した複数個の溶接用透孔とからなり、前記位置決めフランジを前記位置決め溝に挿入させた敷板の前記溶接用透孔を介して該敷板を位置アンカーに溶着させることを特徴としている。   As a technical means for achieving the above-mentioned object, the fixing structure of the connecting bridge slats between the quay and the floating body according to the present invention is laid on a concrete floating body to smoothly move the free side end portion of the connecting bridge. In the fixing structure of the connecting siding slab, the positioning anchor embedded in the concrete, the positioning groove formed in the concrete surface around the positioning anchor, and the positioning projecting at the peripheral edge of the back surface of the slat A positioning flange portion to be inserted into the groove, and a plurality of welding through-holes formed at a position matching the position anchor, which is a part of the floor plate in which the positioning flange is inserted into the positioning groove. The base plate is welded to the position anchor through the welding through hole of the base plate in which the positioning flange is inserted into the positioning groove.

前記敷板は、前記溶接用透孔の部分にて前記位置アンカーに溶着されて固定される。しかも、前記位置決めフランジ部が前記位置決め溝に挿入されているから、敷板は所定の位置に固定されることとなって、連絡橋の自由側端部の動作が円滑となる。なお、前記位置決め溝に位置決めフランジ部を挿入するのに先立って、該位置決め溝にモルタルを流し込み、位置決めフランジ部を挿入して該モルタルを養生させた後に、前記溶接施工を行うことで、浮桟橋にひび割れを発せさせることなく、敷板を確実に所定の位置に固定できる。その後、敷板とコンクリートとの間隙にモルタルを注入してこれらの間隙を埋めるが、前記位置決め溝に注入されたモルタルが位置決めフランジを固定することにより、敷板とコンクリートとの間隙に注入したモルタルの流出が抑止される。   The floor plate is welded and fixed to the position anchor at a portion of the welding through hole. Moreover, since the positioning flange portion is inserted into the positioning groove, the floor plate is fixed at a predetermined position, and the operation of the free side end portion of the connecting bridge becomes smooth. Prior to inserting the positioning flange portion into the positioning groove, a mortar is poured into the positioning groove, the positioning flange portion is inserted and the mortar is cured, and then the welding operation is performed, so that the floating pier The floorboard can be reliably fixed at a predetermined position without causing cracks. After that, mortar is injected into the gap between the floorboard and the concrete to fill these gaps, but the mortar injected into the positioning groove fixes the positioning flange, so that the mortar injected into the gap between the floorboard and the concrete flows out. Is suppressed.

また、この発明に係る岸壁と浮体との連絡橋用敷板の固定方法は、コンクリート製の浮体に敷設されて連絡橋の自由側端部の移動を円滑に行わせる連絡橋用敷板を浮体に固定する連絡橋用敷板の固定方法において、位置アンカーに前記コンクリートを打ち込んで固定し、前記位置アンカーの周囲のコンクリート面に位置決め溝を形成し、前記敷板の裏面の周縁部に突設させた位置決めフランジ部を前記位置決め溝に挿入して、該敷板を固定位置に設置させ、前記敷板に形成すると共に、固定位置に設置された状態で前記位置アンカーと合致した複数個の溶接用透孔を介して、敷板と位置アンカーとを溶接して固定することを特徴としている。   Further, according to the present invention, the connecting bridge slab is fixed to the floating body, which is laid on a concrete floating body and smoothly moves the free side end of the connecting bridge. In the fixing method of the connecting bridge slab, the positioning flange is fixed by driving the concrete into the position anchor, forming a positioning groove in the concrete surface around the position anchor, and projecting from the peripheral edge of the back surface of the slat The portion is inserted into the positioning groove, the laying plate is installed at a fixed position, formed on the laying plate, and through a plurality of welding through holes that match the position anchor in a state of being installed at the fixed position. The floor plate and the position anchor are fixed by welding.

前記敷板は、前記位置決めフランジ部が位置決め溝に挿入されることにより、所定の位置に位置決めされる。この状態で前記溶接用透孔を介して位置アンカーに溶着させるので、敷板は所定の位置に固定されることになり、連絡橋の自由側端部の動作が円滑となる。なお、前記位置決め溝にモルタルを流し込んで前記位置決めフランジ部を挿入し、該モルタルの養生後に敷板の溶接施工を行えば、溶接作業時に敷板が不用意に移動することがなく好ましい。   The floor plate is positioned at a predetermined position by inserting the positioning flange portion into the positioning groove. In this state, it is welded to the position anchor through the welding through hole, so that the floor plate is fixed at a predetermined position, and the operation of the free side end portion of the connecting bridge becomes smooth. It is preferable that the mortar is poured into the positioning groove, the positioning flange portion is inserted, and the laying plate is welded after the mortar is cured, so that the laying plate does not inadvertently move during the welding operation.

この発明に係る岸壁と浮体との連絡橋用敷板の固定構造及び固定方法によれば、敷板を、該敷板に形成した複数個の溶接用透孔を介して位置アンカーに溶接するため、敷板と位置アンカーとは部分的なスポット溶接となるため、コンクリートへの溶接熱の伝達を極力抑制できる。このため、コンクリートにひび割れが発生することが防止されて、補修コストを低減することができる。   According to the fixing structure and fixing method of the connecting bridge floor plate between the quay and the floating body according to the present invention, the base plate is welded to the position anchor through the plurality of welding through holes formed in the base plate. Since the position anchor is a partial spot welding, the transfer of welding heat to the concrete can be suppressed as much as possible. For this reason, it is prevented that a crack generate | occur | produces in concrete, and repair cost can be reduced.

この発明に係る岸壁と浮体との連絡橋用敷板の固定構造を示す斜視図であり、敷板を固定する前の状態を示している。It is a perspective view which shows the fixing structure of the connecting bridge sill board of the quay and the floating body which concerns on this invention, and has shown the state before fixing a sill board. この発明に係る岸壁と浮体との連絡橋用敷板の固定構造により敷板を固定する作業工程を説明する図であある。It is a figure explaining the operation | work process which fixes a base plate by the fixing structure of the base plate for connecting bridges of a quay and a floating body concerning this invention. 従来の連絡橋用敷板の固定構造を示す図で、図１に相当する斜視図である。It is a figure which shows the fixing structure of the conventional siding board for connecting bridges, and is a perspective view equivalent to FIG. 従来の固定構造によって敷板を固定する作業工程を説明する図で、図２に相当する図である。It is a figure explaining the operation | work process which fixes a flooring board by the conventional fixing structure, and is a figure equivalent to FIG. 浮桟橋が岸壁に係留された状態を示す平面図である。It is a top view which shows the state in which the floating pier was moored by the quay. 浮桟橋が岸壁に係留された状態を示す側面図である。It is a side view which shows the state in which the floating pier was moored by the quay. 図６の一部の拡大図であり、連絡橋と浮桟橋との連繋状態を説明する側面図である。FIG. 7 is a partial enlarged view of FIG. 6, and is a side view for explaining a connection state between a connecting bridge and a floating pier.

以下、図示した好ましい実施の形態に基づいて、この発明に係る岸壁と浮体との連絡橋用敷板の固定構造及び固定方法を具体的に説明する。   Hereinafter, based on the preferred embodiments shown in the drawings, a fixing structure and a fixing method for a connecting bridge sill plate between a quay wall and a floating body according to the present invention will be described in detail.

図１に示すように、コンクリート製の浮桟橋２の上面に敷板20を固定するものである。図２(ａ)に示すように、浮桟橋２の内部の鋼桁2bの上面に位置アンカー21を載置させ、この鋼桁2bに型枠11を組み付け、コンクリート12を打ち込んで、図２(ｂ)に示すように、位置アンカー21を埋設する。このとき、該位置アンカー21の上端面がテンプレート部21aとなってコンクリート12の上面に露呈させるようにする。本実施形態ではこの位置アンカー21は、図１に示すように、４列に配されている。この位置アンカー21の周囲のコンクリート12の上面に、図１及び図２(ｃ)に示すように、ほぼＶ字形の溝による位置決め溝22を形成する。この位置決め溝22が形成された状態でコンクリート12を養生する。   As shown in FIG. 1, a floor plate 20 is fixed to the upper surface of a concrete floating pier 2. As shown in FIG. 2 (a), the position anchor 21 is placed on the upper surface of the steel girder 2b inside the floating pier 2, the formwork 11 is assembled to the steel girder 2b, and concrete 12 is driven in, as shown in FIG. As shown in b), the position anchor 21 is embedded. At this time, the upper end surface of the position anchor 21 becomes the template portion 21a and is exposed on the upper surface of the concrete 12. In this embodiment, the position anchors 21 are arranged in four rows as shown in FIG. As shown in FIGS. 1 and 2 (c), a positioning groove 22 having a substantially V-shaped groove is formed on the upper surface of the concrete 12 around the position anchor 21. The concrete 12 is cured with the positioning grooves 22 formed.

一方、前記敷板20の裏面には、図１及び図２(ｄ)に示すように、位置決めフランジ部20aが下方を指向して突設されている。この位置決めフランジ部20aが前記位置決め溝22に挿入されることにより、敷板20が連絡橋３の前記支持ローラ6bの移動範囲に敷設されることになる。また、位置決めフランジ部20aが位置決め溝22に挿入された状態で、敷板20の前記位置アンカー21と合致する位置には、溶接用透孔20bが形成されている。この実施形態では、１列の位置アンカー21に対応して４個の溶接用透孔20bが形成されている   On the other hand, as shown in FIG. 1 and FIG. 2 (d), a positioning flange portion 20a is provided on the back surface of the floor plate 20 so as to face downward. By inserting the positioning flange portion 20a into the positioning groove 22, the floor plate 20 is laid in the moving range of the support roller 6b of the connecting bridge 3. Further, a welding through hole 20b is formed at a position matching the position anchor 21 of the floor plate 20 in a state where the positioning flange portion 20a is inserted into the positioning groove 22. In this embodiment, four welding through holes 20b are formed corresponding to one row of position anchors 21.

以上により構成されたこの発明に係る固定構造を備えた敷板の固定方法を、以下に説明する。   The fixing method of the floorboard provided with the fixing structure according to the present invention configured as described above will be described below.

前述したように、コンクリート12の表面に前記位置決め溝22が形成されてコンクリート12の養生が完了したならば（図２(ｃ)参照）、該位置決め溝22に、図２(ｄ)に示すように、モルタル23を充填し、この位置決め溝22に位置決めフランジ部20aを挿入する。モルタル23の養生が完了した状態では、敷板20が、その位置決めフランジ部20aが位置決め溝22に挿入されていることにより、所定の位置に位置決めされた状態となっている。また、モルタル23の養生が完了した状態では、該敷板20がコンクリート12の上面に固定されている。   As described above, when the positioning groove 22 is formed on the surface of the concrete 12 and the curing of the concrete 12 is completed (see FIG. 2 (c)), the positioning groove 22 is formed in the positioning groove 22 as shown in FIG. 2 (d). Then, the mortar 23 is filled, and the positioning flange portion 20a is inserted into the positioning groove 22. When the curing of the mortar 23 is completed, the floor plate 20 is positioned at a predetermined position by the positioning flange portion 20a being inserted into the positioning groove 22. In addition, when the curing of the mortar 23 is completed, the floor plate 20 is fixed to the upper surface of the concrete 12.

コンクリート12の上面に固定された状態では、敷板20に形成された前記溶接用透孔20bが前記位置アンカー21のテンプレート部21aに合致した位置している。そこで、溶接用透孔20bを介して敷板20と位置アンカー21とを溶接材が該溶接用透孔20bを閉塞する栓体となるように溶接を行う。このため、溶接用透孔20bの部分で敷板20が位置アンカー21に固定されることになり、敷板20が浮桟橋２の上面に固定された状態となる。したがって、敷板20に連絡橋３の自由側端部の前記支持ローラ6bが案内されて転動する。   In a state of being fixed to the upper surface of the concrete 12, the welding through hole 20b formed in the floor plate 20 is positioned so as to match the template portion 21a of the position anchor 21. Therefore, the base plate 20 and the position anchor 21 are welded via the welding through-hole 20b so that the welding material becomes a plug that closes the welding through-hole 20b. For this reason, the floor plate 20 is fixed to the position anchor 21 at the portion of the welding through hole 20b, and the floor plate 20 is fixed to the upper surface of the floating pier 2. Accordingly, the support roller 6b at the free end of the connecting bridge 3 is guided and rolled by the floor plate 20.

しかも、敷板20と位置アンカー21との溶接がスポット状のものであるから、位置アンカー21からコンクリート12への熱伝達が極力抑制される。このため、コンクリート12が溶接熱により影響を受けることがなく、ひび割れの発生等が極力防止される。   In addition, since the welding of the floor plate 20 and the position anchor 21 is spot-like, heat transfer from the position anchor 21 to the concrete 12 is suppressed as much as possible. For this reason, the concrete 12 is not affected by welding heat, and the occurrence of cracks and the like is prevented as much as possible.

この発明に係る岸壁と浮体との連絡橋用敷板の固定構造及び固定方法によれば、溶接の際の熱がコンクリートに影響することを極力防止できるので、補修に手間がかからず、補修コストを削減でき、水面に浮かぶ浮体と岸との連絡橋の自由側端部用の敷板に適したものとなる。   According to the fixing structure and fixing method of the connecting bridge slab between the quay and the floating body according to the present invention, it is possible to prevent the heat at the time of welding from affecting the concrete as much as possible. It is suitable for the floor plate for the free side end of the connecting bridge between the floating body floating on the water surface and the shore.

１ 岸壁
２ 浮桟橋
2b 鋼桁
３ 連絡橋
５ 揺動機構
６ 移動機構
11 型枠
12 コンクリート
20 敷板
20a 位置決めフランジ部
20b 溶接用透孔
21 位置アンカー
21a テンプレート部
22 位置決め溝
23 モルタル 1 Quay 2 Floating Pier
2b Steel girder 3 Connecting bridge 5 Oscillating mechanism 6 Moving mechanism
11 Formwork
12 Concrete
20 flooring
20a Positioning flange
20b Welding hole
21 Position anchor
21a Template part
22 Positioning groove
23 Mortar

Claims (2)

コンクリート製の浮体に敷設されて連絡橋の自由側端部の移動を円滑に行わせる連絡橋用敷板の固定構造において、
前記コンクリートに埋設させた位置アンカーと、
前記位置アンカーの周囲のコンクリート面に形成した位置決め溝と、
前記敷板の裏面の周縁部に突設した、前記位置決め溝に挿入する位置決めフランジ部と、
前記位置決めフランジが前記位置決め溝に挿入された状態の前記敷板の一部であって、位置アンカーと合致する位置に形成した複数個の溶接用透孔とからなり、
前記位置決めフランジを前記位置決め溝に挿入させた敷板の前記溶接用透孔を介して該敷板を位置アンカーに溶着させることを特徴とする岸壁と浮体との連絡橋用敷板の固定構造。 In the fixed structure of the connecting bridge laying board that is laid on a concrete floating body and smoothly moves the free end of the connecting bridge,
A position anchor embedded in the concrete;
Positioning grooves formed in the concrete surface around the position anchor;
A positioning flange portion that protrudes from the periphery of the back surface of the floor plate and is inserted into the positioning groove;
The positioning flange is a part of the floor plate in a state of being inserted into the positioning groove, and includes a plurality of welding through holes formed at a position matching the position anchor,
A structure for fixing a connecting sill for a connecting bridge between a quay and a floating body, wherein the slat is welded to a position anchor through the welding through hole of the slat that has the positioning flange inserted into the positioning groove. コンクリート製の浮体に敷設されて連絡橋の自由側端部の移動を円滑に行わせる連絡橋用敷板を浮体に固定する連絡橋用敷板の固定方法において、
位置アンカーに前記コンクリートを打ち込んで固定し、
前記位置アンカーの周囲のコンクリート面に位置決め溝を形成し、
前記敷板の裏面の周縁部に突設させた位置決めフランジ部を前記位置決め溝に挿入して、該敷板を固定位置に設置させ、
前記敷板に形成すると共に、固定位置に設置された状態で前記位置アンカーと合致した複数個の溶接用透孔を介して、敷板と位置アンカーとを溶接して固定することを特徴とする岸壁と浮体との連絡橋用敷板の固定方法。 In the fixing method of the connecting bridge slab that fixes the connecting bridge slat to the floating body that is laid on a concrete floating body and smoothly moves the free side end of the connecting bridge,
The concrete is driven into the position anchor and fixed,
Forming a positioning groove in the concrete surface around the position anchor;
Inserting a positioning flange portion protruding from the peripheral edge of the back surface of the floor plate into the positioning groove, and setting the floor plate at a fixed position,
A quay wall formed on the floor plate and fixed by welding and fixing the floor plate and the position anchor through a plurality of welding holes matching the position anchor in a state of being installed at a fixed position. How to fix the bridge slab for the floating bridge.
JP2010075754A 2010-03-29 2010-03-29 Fixing structure and fixing method of slab for connecting bridge between quay and floating body Expired - Fee Related JP5231473B2 (en)

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CN107245933A (en) * 2017-07-06 2017-10-13 中建六局土木工程有限公司 A kind of method for cast-in-situ box girder top plate preformed hole construction
CN107974937A (en) * 2017-11-21 2018-05-01 中国建筑土木建设有限公司 Anchor sealing construction method and beam end anchor sealing template

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JPS63272805A (en) * 1987-04-30 1988-11-10 石川島建材工業株式会社 Float pier and execution thereof
JPH07166514A (en) * 1993-10-20 1995-06-27 Matsuo Eng Kk Supporting method and device after completion of bridge, etc.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192755A (en) * 2015-04-29 2016-12-07 江苏沪宁钢机股份有限公司 A kind of fish-bellied type shaped form cross a river double width steel box-girder steel bridge construction method of installation
CN107245933A (en) * 2017-07-06 2017-10-13 中建六局土木工程有限公司 A kind of method for cast-in-situ box girder top plate preformed hole construction
CN107974937A (en) * 2017-11-21 2018-05-01 中国建筑土木建设有限公司 Anchor sealing construction method and beam end anchor sealing template
CN107974937B (en) * 2017-11-21 2019-10-08 中国建筑土木建设有限公司 Anchor sealing construction method and beam end anchor sealing template

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