JP2012117219A - Construction structure of composite viaduct and construction method of composite viaduct - Google Patents
Construction structure of composite viaduct and construction method of composite viaduct Download PDFInfo
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Description
本発明は、鉄道、道路の複合高架橋の構築構造およびその複合高架橋の施工方法に関するものである。 The present invention relates to a construction structure of a composite viaduct for railways and roads and a construction method for the composite viaduct.
従来、高架橋の建設にあたって、鋼とコンクリートを用いた複合構造物の積極的活用は少なかった。また、都市内では、狭隘な箇所での施工が要求されるケースが増えてきている。
図２０は従来の高架橋の側面図、図２１はその正面図である。
これらの図において、１００は高架橋、１０１はＲＣ柱、１０２はＲＣ柱１０１上に構築されるＲＣ（鉄筋コンクリート）〔又はＰＣ（プレストレストコンクリート）〕梁、１０３は高架橋１００上を走行する車両である。
Conventionally, in the construction of viaducts, there has been little active utilization of composite structures using steel and concrete. In cities, there are increasing cases where construction is required in narrow spaces.
20 is a side view of a conventional viaduct, and FIG. 21 is a front view thereof.
In these drawings, 100 is a viaduct, 101 is an RC column, 102 is an RC (steel reinforced concrete) beam (or PC (prestressed concrete)) built on the RC column 101, and 103 is a vehicle traveling on the viaduct 100.
従来の高架橋の施工・構築方法では、時間・費用がかかりすぎるという課題があった。特に、狭隘な箇所での施工には、時間・費用がさらに増大する傾向が強い。
本発明は、上記状況に鑑みて、短い期間で施工でき、かつ費用を低減して構築することができる、複合高架橋の構築構造およびその複合高架橋の施工方法を提供することを目的とする。
The conventional viaduct construction / construction method has a problem that it takes too much time and money. In particular, construction in a narrow area tends to further increase time and cost.
In view of the above circumstances, an object of the present invention is to provide a composite viaduct construction structure and a composite viaduct construction method that can be constructed in a short period of time and can be constructed at a reduced cost.
本発明は、上記目的を達成するために、
〔１〕複合高架橋の構築構造において、コンクリートを充填した鋼管からなるＣＦＴ柱と、このＣＦＴ柱上に配置され水平方向に移動させて構築可能な上層梁鋼箱桁と、前記ＣＦＴ柱に設置されるアンカーフレームと前記上層梁鋼箱桁とに装着される差し込み鉄骨とからなる上層梁鋼箱桁部材と、前記ＣＦＴ柱と前記上層梁鋼箱桁部材とを接合するＣＦＴ柱接合部と、前記上層梁鋼箱桁部材上に配置されるコンクリートからなる合成梁床版とを具備することを特徴とする。
In order to achieve the above object, the present invention provides
[1] In a composite viaduct construction structure, a CFT column made of a steel pipe filled with concrete, an upper beam steel box girder arranged on the CFT column and movable in the horizontal direction, and an anchor installed on the CFT column An upper beam steel box girder member composed of a steel frame attached to a frame and the upper beam steel box girder, a CFT column joint for joining the CFT column and the upper beam steel box girder member, and the upper beam steel box girder member. And a composite beam slab made of concrete.
〔２〕上記〔１〕記載の複合高架橋の構築構造において、前記ＣＦＴ柱接合部は、前記アンカーフレームおよび前記上層梁鋼箱桁と前記差し込み鉄骨との間の空隙にコンクリートを充填することによって前記差し込み鉄骨を固定することを特徴とする。
〔３〕上記〔１〕記載の複合高架橋の構築構造において、前記ＣＦＴ柱接合部は、前記上層梁鋼箱桁内に配置されるリング状のコンクリートブロックと前記アンカーフレームをアンカーボルトで固定し、さらに、前記上層梁鋼箱桁内の空隙にコンクリートを充填することによって前記差し込み鉄骨を固定することを特徴とする。
[2] The composite viaduct construction structure according to the above [1], wherein the CFT column joint is formed by filling the gap between the anchor frame and the upper beam steel box girder and the insertion steel frame with concrete. It is characterized by fixing.
[3] In the construction structure of the composite viaduct according to [1], the CFT column joint portion fixes the ring-shaped concrete block disposed in the upper beam steel box girder and the anchor frame with an anchor bolt, The insert steel frame is fixed by filling the gap in the upper beam steel box girder with concrete.
〔４〕複合高架橋の施工方法において、コンクリートを充填した鋼管からなるＣＦＴ柱を建て込み、このＣＦＴ柱上に上層梁鋼箱桁を含む上層梁鋼箱桁部材を水平方向に移動させて配置し、前記ＣＦＴ柱と前記上層梁鋼箱桁部材とを接合し、前記上層梁鋼箱桁部材上にコンクリートからなる合成梁床版を配置し、前記ＣＦＴ柱に設置されたアンカーフレームと前記上層梁鋼箱桁とを、この上層梁鋼箱桁を水平方向に移動させることにより位置合わせし、前記アンカーフレームと前記上層梁鋼箱桁とに差し込み鉄骨を装着することを特徴とする。 [4] In the construction method of the composite viaduct, a CFT column made of a steel pipe filled with concrete is built, and an upper beam steel box girder member including an upper beam steel box girder is horizontally moved on the CFT column, and the CFT column is arranged. And the upper beam steel box girder member, a synthetic beam floor slab made of concrete is disposed on the upper beam steel box girder member, and the anchor frame installed on the CFT column and the upper beam steel box girder are connected to the upper beam steel box girder. The steel frame is aligned by moving in a horizontal direction, and a steel frame is attached to the anchor frame and the upper beam steel box girder.
〔５〕上記〔４〕記載の複合高架橋の施工方法において、前記アンカーフレームおよび前記上層梁鋼箱桁と前記差し込み鉄骨との間の空隙にコンクリートを充填することによって前記差し込み鉄骨を固定することを特徴とする。
〔６〕上記〔４〕記載の複合高架橋の施工方法において、前記上層梁鋼箱桁内にリング状のコンクリートブロックを配置し、このリング状のコンクリートブロックと前記アンカーフレームとをアンカーボルトにより固定し、前記上層梁鋼箱桁内の空隙にコンクリートを充填することによって前記差し込み鉄骨を固定することを特徴とする。
[5] The construction method of the composite viaduct according to [4], wherein the insertion steel frame is fixed by filling concrete into a gap between the anchor frame and the upper beam steel box girder and the insertion steel frame. To do.
[6] In the construction method of the composite viaduct according to the above [4], a ring-shaped concrete block is disposed in the upper beam steel box girder, the ring-shaped concrete block and the anchor frame are fixed by an anchor bolt, The insertion steel frame is fixed by filling the gap in the upper beam steel box girder with concrete.
〔７〕上記〔４〕記載の複合高架橋の施工方法において、前記ＣＦＴ柱の建て込みおよび前記上層梁鋼箱桁の配置は、高架橋施工予定位置近傍に配置された作業機械により行うことを特徴とする。
〔８〕上記〔７〕記載の複合高架橋の施工方法において、前記作業機械を移動させ、前記ＣＦＴ柱の建て込みと前記上層梁鋼箱桁の配置を順次行うことを特徴とする。
[7] In the construction method of the composite viaduct according to [4] above, the construction of the CFT pillar and the arrangement of the upper-layer beam steel box girder are performed by a work machine arranged in the vicinity of the planned position of the viaduct construction.
[8] The construction method of the composite viaduct according to [7] above, wherein the work machine is moved to sequentially build the CFT pillar and arrange the upper beam beam box girder.
本発明によれば、狭隘な箇所での施工でも、期間を短縮し、かつ費用を低減して構築することができる複合高架橋の構築構造およびその複合高架橋の施工方法を提供することができる。すなわち、剛性の高いＣＦＴ柱の活用により、柱・基礎の数を減少させることができるので、コストの低減を図ることができる。また、合成梁とＣＦＴ柱との接合構造により、狭隘な箇所での施工も可能であり、施工期間を短縮しコストを縮減することができる。 ADVANTAGE OF THE INVENTION According to this invention, the construction structure of the composite viaduct and the construction method of the composite viaduct which can be constructed by shortening the period and reducing the cost even in construction in a narrow place can be provided. That is, since the number of columns and foundations can be reduced by utilizing a highly rigid CFT column, cost can be reduced. In addition, the joint structure between the composite beam and the CFT column enables construction in a narrow area, shortening the construction period and reducing the cost.
特に、本発明のＣＦＴ柱を用いた複合高架橋の施工方法では、コンクリートの固化を待たずにＣＦＴ柱に荷重をかけることができるので、柱建て込みからの作業時間を短縮することができ、急速施工が可能になる利点がある。 In particular, in the construction method of the composite viaduct using the CFT pillar of the present invention, it is possible to apply a load to the CFT pillar without waiting for the solidification of the concrete. There is an advantage that construction is possible.
本発明の複合高架橋の構築構造は、コンクリートを充填した鋼管からなるＣＦＴ柱と、このＣＦＴ柱上に配置され水平方向に移動させて構築可能な上層梁鋼箱桁と、前記ＣＦＴ柱に設置されるアンカーフレームと前記上層梁鋼箱桁とに装着される差し込み鉄骨とからなる上層梁鋼箱桁部材と、前記ＣＦＴ柱と前記上層梁鋼箱桁部材とを接合するＣＦＴ柱接合部と、前記上層梁鋼箱桁部材上に配置されるコンクリートからなる合成梁床版とを具備する。 The construction structure of the composite viaduct of the present invention includes a CFT column made of a steel tube filled with concrete, an upper beam steel box girder arranged on the CFT column and movable in the horizontal direction, and an anchor installed on the CFT column. An upper beam steel box girder member comprising a frame and an insertion steel frame attached to the upper beam steel box girder, a CFT column joint for joining the CFT column and the upper beam steel box girder member, and the upper beam steel box girder member Composite beam floor slab made of concrete.
以下、本発明の実施の形態について詳細に説明する。
図１〜図６は本発明の複合高架橋の施工の各工程を示す模式図であり、図１（ａ）〜図６（ａ）は正面図、図１（ｂ）〜図６（ｂ）は側面図である。
図１〜図６において、１は作業規制区域、２は車両、３は高架橋施工予定位置に設置されるＣＦＴ（Ｃｏｎｃｒｅｔｅ Ｆｉｌｌｅｄ Ｔｕｂｕｌａｒ）柱、４はＣＦＴ柱３上に構築される合成梁である。
Hereinafter, embodiments of the present invention will be described in detail.
1-6 is a schematic diagram which shows each process of the construction of the composite viaduct of this invention, FIG.1 (a)-FIG.6 (a) are front views, FIG.1 (b)-FIG.6 (b) are FIG. It is a side view.
In FIG. 1 to FIG. 6, 1 is a work regulation area, 2 is a vehicle, 3 is a CFT (Concrete Filled Tubular) column installed at a viaduct construction planned position, and 4 is a composite beam constructed on the CFT column 3.
そこで、高架橋の施工は以下のような手順により行われる。
（１）まず、図１に示すように、車両２の走行領域等を含む作業規制区域１を避けるようにして作業領域を設定する。
（２）図２に示すように、作業機械（図示なし）により高架橋施工予定位置にＣＦＴ柱３の建て込みを一部行う。
Therefore, the construction of the viaduct is performed according to the following procedure.
(1) First, as shown in FIG. 1, the work area is set so as to avoid the work regulation area 1 including the travel area of the vehicle 2 and the like.
(2) As shown in FIG. 2, the CFT pillar 3 is partially built at the viaduct construction planned position by a work machine (not shown).
（３）図３に示すように、ＣＦＴ柱３上に合成梁４を作業機械（図示なし）により構築する。
（４）次いで、図４に示すように、上記（２）でＣＦＴ柱３の建て込みを行っていない位置まで作業機械（図示なし）を移動させ、ＣＦＴ柱３の建て込みを行う。
（５）図５に示すように、上記（４）で建て込んだＣＦＴ柱３上に作業機械（図示なし）により合成梁４を構築する。
(3) As shown in FIG. 3, the composite beam 4 is constructed on the CFT column 3 by a work machine (not shown).
(4) Next, as shown in FIG. 4, the work machine (not shown) is moved to a position where the CFT pillar 3 is not built in (2), and the CFT pillar 3 is built.
(5) As shown in FIG. 5, the composite beam 4 is constructed by a work machine (not shown) on the CFT pillar 3 built in (4) above.
（６）図６に示すように、車両２の線路を構築した高架橋上に切り替える。
図７は本発明の実施例を示す複合高架橋の側面図、図８はその複合高架橋の正面図、図９は本発明の実施例を示す複合高架橋のＣＦＴ柱の先端部の斜視図である。
これらの図において、１１は高架橋、１２はＣＦＴ柱であり、このＣＦＴ柱１２は、図９に示すように、コンクリート１２Ａを充填した鋼管１２Ｂからなり、高い剛性を持ち、急速施工が可能である。１３はＣＦＴ柱１２上に構築される上層梁鋼箱桁部材、１４は合成梁床版（ＲＣ）であり、この上層梁鋼箱桁部材１３と合成梁床版１４によって図６に示す合成梁４を形成している。１５は高架橋１１上を走行する車両、１６はＣＦＴ柱接合部である。
(6) As shown in FIG. 6, the vehicle 2 is switched over to the viaduct constructed.
FIG. 7 is a side view of a composite viaduct showing an embodiment of the present invention, FIG. 8 is a front view of the composite viaduct, and FIG. 9 is a perspective view of a tip portion of a CFT column of the composite viaduct showing an embodiment of the present invention.
In these drawings, 11 is a viaduct and 12 is a CFT column. As shown in FIG. 9, this CFT column 12 is made of a steel pipe 12B filled with concrete 12A, has high rigidity, and can be rapidly constructed. . 13 is an upper beam steel box girder member constructed on the CFT column 12, and 14 is a composite beam floor slab (RC). The upper beam steel box girder member 13 and the composite beam floor slab 14 form the composite beam 4 shown in FIG. ing. Reference numeral 15 denotes a vehicle traveling on the viaduct 11, and 16 denotes a CFT column joint.
本発明に用いるＣＦＴ柱１２は、上記したように、コンクリート１２Ａを充填した鋼管１２Ｂからなり、高い剛性を有しており、かつ従来のＲＣ柱に比べて強度が高く、したがって、設置する本数を減少させることができる。例えば、従来のＲＣ柱を６本で構成していたところを、ＣＦＴ柱４本に代えることができる。
このように、ＣＦＴ柱を活用することにより、柱・基礎の数を減少させることができ、コストの低減を図ることができる。
As described above, the CFT column 12 used in the present invention is made of the steel pipe 12B filled with the concrete 12A, has high rigidity, and has a higher strength than the conventional RC column. Can be reduced. For example, the place where the conventional RC pillar is composed of six can be replaced with four CFT pillars.
Thus, by utilizing the CFT pillars, the number of pillars / foundations can be reduced, and the cost can be reduced.
また、本発明のＣＦＴ柱を用いた複合高架橋の施工方法では、急速施工が可能である。すなわち、従来のＲＣ柱を用いた高架橋の施工方法では、ＲＣ柱を打設後コンクリートが固化するまでに１週間程度を要し、その間はＲＣ柱に荷重をかけることができないため、コンクリートが固化するまで作業を中断せざるを得なかった。一方、本発明のＣＦＴ柱を用いた複合高架橋の施工方法では、鋼管を使用し、その鋼管は溶接やボルトを使用して接合することができるため、コンクリートの固化を待たずにＣＦＴ柱に荷重をかけることができ、作業を中断する必要がない。そのため、柱建て込みからの大幅な作業時間の短縮が可能になる。 Moreover, in the construction method of the composite viaduct using the CFT pillar of the present invention, rapid construction is possible. That is, in the conventional viaduct construction method using RC columns, it takes about one week for the concrete to solidify after placing the RC columns, and during that time it is impossible to apply a load to the RC columns, so the concrete is solidified. I had to suspend my work until. On the other hand, in the construction method of the composite viaduct using the CFT column of the present invention, a steel pipe is used, and the steel pipe can be joined using welding or a bolt, so that the load is applied to the CFT column without waiting for solidification of the concrete. Without having to interrupt the work. For this reason, it is possible to greatly shorten the work time from the pillar construction.
次に、上記図１〜６で説明した複合高架橋の施工方法における、ＣＦＴ柱とその上に構築される合成梁との接続について説明する。
図１０〜図１４は本発明の第１実施例を示す複合高架橋のＣＦＴ柱接合部の施工方法（鉄骨差し込み方式）の説明図である。
（１）まず、図１０に示すように、ＣＦＴ柱２１の建て込みを行う。つまり、工場において上端にアンカーフレーム２２を設けた鋼管を、現場に搬入し、コンクリートを打設する。
Next, the connection between the CFT column and the composite beam constructed thereon in the composite viaduct construction method described with reference to FIGS.
FIGS. 10-14 is explanatory drawing of the construction method (steel-frame insertion system) of the composite high bridge | crosslinking CFT column junction part which shows 1st Example of this invention.
(1) First, as shown in FIG. 10, the CFT pillar 21 is built. That is, a steel pipe provided with an anchor frame 22 at the upper end in a factory is carried to the site and concrete is laid.
（２）図１１に示すように、ＣＦＴ柱２１のアンカーフレーム２２上に上層梁鋼箱桁２３Ａを載せる。この上層梁鋼箱桁２３Ａは、図１１（ａ）に示すような長尺状の鋼箱桁として形成されており、その断面は、図１１（ｂ）に示すような四角形状に形成されている。この上層梁鋼箱桁２３ＡをＣＦＴ柱２１のアンカーフレーム２２上で水平移動させ、アンカーフレーム２２と位置合わせする。 (2) As shown in FIG. 11, the upper beam steel box girder 23 </ b> A is placed on the anchor frame 22 of the CFT column 21. This upper beam steel box girder 23A is formed as a long steel box girder as shown in FIG. 11 (a), and its cross section is formed in a quadrangular shape as shown in FIG. 11 (b). The upper beam steel box girder 23 </ b> A is moved horizontally on the anchor frame 22 of the CFT pillar 21 and aligned with the anchor frame 22.
（３）図１２に示すように、差し込み鉄骨２４を、アンカーフレーム２２と上層梁鋼箱桁２３Ａとに装着することにより、上層梁鋼箱桁部材２３の設置を完了する。この差し込み鉄骨２４は、図１２（ｂ）（側面図）と図１２（ｃ）（平面図）に示すように、断面十字形状の縦長の板２４Ａの各先端部に直交する縦長の板２４Ｂが組み合わされた形状をしている。なお、上層梁鋼箱桁２３Ａの上面には開口部が設けられ、その開口部から差し込み鉄骨２４を挿入するようにしている。 (3) As shown in FIG. 12, the installation of the upper-layer beam steel box girder member 23 is completed by attaching the insertion steel frame 24 to the anchor frame 22 and the upper-layer beam steel box girder 23A. As shown in FIG. 12B (side view) and FIG. 12C (plan view), the insertion steel frame 24 includes a vertically long plate 24B that is orthogonal to each tip portion of a vertically long plate 24A having a cross-shaped cross section. It has a combined shape. Note that an opening is provided on the upper surface of the upper beam beam box girder 23A, and the insertion steel frame 24 is inserted through the opening.
（４）図１３に示すように、アンカーフレーム２２および上層梁鋼箱桁２３Ａと差し込み鉄骨２４のとの空隙にコンクリート２５を充填して差し込み鉄骨２４を固定する。
（５）そして、図１４に示すように、上層梁鋼箱桁部材２３に合成梁床版２６を施工して、合成梁を完成させる。
図１５〜図１８は本発明の第２実施例を示す複合高架橋のＣＦＴ柱接合部の要部の施工方法（鉄骨差し込み方式）の説明図である。
(4) As shown in FIG. 13, concrete 25 is filled in the gap between the anchor frame 22 and the upper beam steel box girder 23 </ b> A and the insertion steel 24 to fix the insertion steel 24.
(5) Then, as shown in FIG. 14, the composite beam floor slab 26 is applied to the upper beam steel box girder member 23 to complete the composite beam.
15-18 is explanatory drawing of the construction method (steel insertion method) of the principal part of the composite high bridge | crosslinking CFT column junction part which shows 2nd Example of this invention.
（１）まず、上記した図１０から図１２に示す第１工程から第３工程を施工する。
（２）次いで、図１５に示すように、上層梁鋼箱桁部材２３Ａ内にリング状のコンクリートブロック３１を配置する。
（３）次に、図１６に示すように、リング状のコンクリートブロック３１とアンカーフレーム２２とをアンカーボルト３２によって固定する。
(1) First, the first to third steps shown in FIGS. 10 to 12 are applied.
(2) Next, as shown in FIG. 15, a ring-shaped concrete block 31 is arranged in the upper beam steel box girder member 23A.
(3) Next, as shown in FIG. 16, the ring-shaped concrete block 31 and the anchor frame 22 are fixed by anchor bolts 32.
（４）次に、図１７に示すように、上層梁鋼箱桁２３Ａ内の空隙にコンクリート３３を充填することによって差し込み鉄骨２４を固定する。
（５）そして、図１８に示すように、上層梁鋼箱桁部材２３に合成梁床版３４を施工して、合成梁を完成させる。
このように構成することにより、ＣＦＴ柱に対して上層梁鋼箱桁部材と合成梁床版とからなる合成梁を強固に固定することができる。
(4) Next, as shown in FIG. 17, the insertion steel frame 24 is fixed by filling the gap in the upper beam steel box girder 23A with concrete 33.
(5) Then, as shown in FIG. 18, the composite beam floor slab 34 is applied to the upper beam steel box girder member 23 to complete the composite beam.
By comprising in this way, the composite beam which consists of an upper-layer beam steel box girder member and a composite beam floor slab can be firmly fixed with respect to a CFT pillar.
図１９は本発明の実施例を示す複合高架橋の施工時の模式図であり、図１９（ａ）はその平面図、図１９（ｂ）はその上層梁鋼箱桁の右方の断面図、図１９（ｃ）は上層梁鋼箱桁の分岐部の断面の一例を示す図である。
ＣＦＴ柱２１へ差し込み鉄骨２４を用いて接合された上層梁鋼箱桁２３Ａは、添接継手４１で互いに接続される。この添接継手４１は、添接板４２，４３およびボルト４４，４５からなる。また、上層梁鋼箱桁２３Ａの分岐部と、上層梁横桁２３Ｂとが添接板４６とボルト４７からなる添接継手によって接続される。
FIG. 19 is a schematic view at the time of construction of the composite viaduct showing an embodiment of the present invention, FIG. 19 (a) is a plan view thereof, FIG. 19 (b) is a cross-sectional view on the right side of the upper beam steel box girder, FIG. (C) is a figure which shows an example of the cross section of the branch part of an upper beam steel box girder.
The upper beam steel box girder 23 </ b> A joined to the CFT column 21 using the steel frame 24 is connected to each other by a joint joint 41. The contact joint 41 includes contact plates 42 and 43 and bolts 44 and 45. Further, the branch portion of the upper beam beam box girder 23 </ b> A and the upper beam beam girder 23 </ b> B are connected to each other by an attachment joint including an attachment plate 46 and a bolt 47.
このように、本発明ではＣＦＴ柱と合成梁を強固に固定し、堅牢な複合高架橋を構築することができる。また、本発明は狭隘な箇所での施工が可能であり、施工期間の短縮とコストの縮減を図ることができる。
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。
Thus, in the present invention, the CFT pillar and the composite beam can be firmly fixed, and a robust composite viaduct can be constructed. In addition, the present invention can be applied in a narrow area, and can shorten the construction period and reduce the cost.
In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.
本発明の複合高架橋の構築構造およびその複合高架橋の施工方法は、狭隘な箇所でも短い期間で施工することができ、かつ費用を低減することができる複合高架橋の施工方法として利用可能である。 The construction structure of the composite viaduct and the construction method of the composite viaduct of the present invention can be used as a construction method of the composite viaduct which can be constructed in a short period even in a narrow place and can reduce the cost.
１ 作業規制区域
２，１５ 車両
３，１２，２１ ＣＦＴ柱
４ 合成梁
１１ 高架橋
１２Ａ，２５，３３ コンクリート
１２Ｂ 鋼管
１３，２３ 上層梁鋼箱桁部材
１４，２６，３４ 合成梁床版
１６ ＣＦＴ柱接合部
２２ ＣＦＴ柱のアンカーフレーム
２３Ａ 上層梁鋼箱桁
２３Ｂ 上層梁横桁
２４ 差し込み鉄骨
２４Ａ 断面十字形状の縦長の板
２４Ｂ 縦長の板
３１ リング状のコンクリートブロック
３２ アンカーボルト
４１ 添接継手
４２，４３，４６ 添接板
４４，４５，４７ ボルト
1 Work Restriction Area 2,15 Vehicle 3,12,21 CFT Column 4 Composite Beam 11 Viaduct 12A, 25, 33 Concrete 12B Steel Pipe 13, 23 Upper Beam Steel Box Girder Member 14, 26, 34 Composite Beam Floor Slab 16 CFT Column Joint 22 CFT pillar anchor frame 23A Upper beam steel box girder 23B Upper beam horizontal girder 24 Inserted steel frame 24A Cross-shaped vertical plate 24B Vertical plate 31 Ring-shaped concrete block 32 Anchor bolt 41 Joint joint 42, 43, 46 Joint plate 44, 45, 47 bolts
Claims (8)
（ｂ）該ＣＦＴ柱上に配置され水平方向に移動させて構築可能な上層梁鋼箱桁と、前記ＣＦＴ柱に設置されるアンカーフレームと前記上層梁鋼箱桁とに装着される差し込み鉄骨とからなる上層梁鋼箱桁部材と、
（ｃ）前記ＣＦＴ柱と前記上層梁鋼箱桁部材とを接合するＣＦＴ柱接合部と、
（ｄ）前記上層梁鋼箱桁部材上に配置されるコンクリートからなる合成梁床版とを具備することを特徴とする複合高架橋の構築構造。 (A) a CFT column made of a steel pipe filled with concrete;
(B) An upper beam steel box composed of an upper beam steel box girder arranged on the CFT column and movable in the horizontal direction; an anchor frame installed on the CFT column; and an insert steel frame attached to the upper beam steel box girder. A girder member;
(C) a CFT column joint for joining the CFT column and the upper beam steel box girder member;
(D) A composite viaduct construction structure comprising a composite beam deck made of concrete disposed on the upper beam steel box girder member.
（ｂ）該ＣＦＴ柱上に上層梁鋼箱桁を含む上層梁鋼箱桁部材を水平方向に移動させて配置し、
（ｃ）前記ＣＦＴ柱と前記上層梁鋼箱桁部材とを接合し、
（ｄ）前記上層梁鋼箱桁部材上にコンクリートからなる合成梁床版を配置し、
（ｅ）前記ＣＦＴ柱に設置されたアンカーフレームと前記上層梁鋼箱桁とを、この上層梁鋼箱桁を水平方向に移動させることにより位置合わせし、前記アンカーフレームと前記上層梁鋼箱桁とに差し込み鉄骨を装着することを特徴とする複合高架橋の施工方法。 (A) A CFT pillar made of a steel pipe filled with concrete is built,
(B) An upper beam steel box girder member including an upper beam steel box girder is moved and arranged on the CFT column in a horizontal direction.
(C) joining the CFT pillar and the upper beam steel box girder member;
(D) placing a composite beam deck made of concrete on the upper beam steel box girder member;
(E) The anchor frame installed on the CFT column and the upper-layer beam steel box girder are aligned by moving the upper-layer beam steel box girder in the horizontal direction, and the steel frame is attached to the anchor frame and the upper-layer beam steel box girder. The construction method of the composite viaduct characterized by doing.
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