JP2012117218A - 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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Abstract
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１３は従来の高架橋の側面図、図１４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.
FIG. 13 is a side view of a conventional viaduct, and FIG. 14 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柱の柱頭に配筋を施した柱頭接合部と、前記ＣＦＴ柱上に配置され水平方向に移動させて構築可能な、シース管を有するＰＣ・ＲＣの梁および床版と、前記ＣＦＴ柱と前記梁および床版とを接合するＣＦＴ柱接合部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 the construction structure of a composite viaduct, a CFT column made of a steel pipe filled with concrete, a stigma joint having a bar arranged on the stigma of the CFT column, and a horizontal position arranged on the CFT column A PC / RC beam and floor slab having a sheath tube that can be constructed, and a CFT column joint that joins the CFT column and the beam and floor slab are provided.
〔２〕上記〔１〕記載の複合高架橋の構築構造において、前記柱頭接合部に機械式継手を有する配筋を施したことを特徴とする。
〔３〕上記〔２〕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、前記柱頭接合部に施された配筋と前記梁および床版のシース管とを、前記梁および床版を水平方向に移動させることにより位置合わせし、前記シース管を貫通させた鉄筋と前記柱頭接合部の配筋とを接合することを特徴とする。
[2] The composite viaduct construction structure according to the above [1], wherein a reinforcement having a mechanical joint is applied to the stigma joint.
[3] In the composite viaduct construction structure according to [2], the CFT column joint portion includes a bar arrangement applied to the stigma joint portion and a sheath tube of the beam and the floor slab. It is characterized by aligning by moving in the horizontal direction, and joining the reinforcing bar penetrating the sheath tube and the reinforcing bar of the stigma joint.
〔４〕上記〔２〕記載の複合高架橋の構築構造において、前記シース管にグラウトを注入することを特徴とする。
〔５〕複合高架橋の施工方法において、柱頭接合部に機械的継手を有する配筋を施した、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、シース管を有するＰＣ・ＲＣの梁および床版を水平方向に移動させて配置し、前記ＣＦＴ柱と前記梁および床版とを接合することを特徴とする。
[4] The composite viaduct construction structure according to [2] above, wherein grout is injected into the sheath tube.
[5] In the construction method of the composite viaduct, a CFT column made of a steel pipe filled with concrete with a reinforcement with a mechanical joint at the stigma joint is built, and a PC · An RC beam and a floor slab are moved in the horizontal direction, and the CFT column and the beam and the floor slab are joined.
〔６〕上記〔５〕記載の複合高架橋の施工方法において、前記柱頭接合部に施された配筋と前記梁および床版のシース管とを、前記梁および床版を水平方向に移動させることにより位置合わせし、前記シース管を貫通させた鉄筋と前記柱頭接合部の配筋とを前記機械的継手で接合することを特徴とする。
〔７〕上記〔６〕記載の複合高架橋の施工方法において、前記シース管にグラウトを注入することを特徴とする。
[6] In the construction method of the composite viaduct according to [5], the beam and the floor slab are moved in the horizontal direction between the reinforcing bar applied to the stigma joint and the sheath tube of the beam and the floor slab. And the reinforcing bar penetrating the sheath tube and the bar arrangement of the stigma joint are joined by the mechanical joint.
[7] The composite viaduct construction method according to [6], wherein grout is injected into the sheath tube.
〔８〕上記〔５〕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梁および床版の配置は、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。
〔９〕上記〔８〕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梁および床版の配置を順次行うことを特徴とする。
[8] In the construction method of the composite viaduct according to [5] above, the construction of the CFT pillar and the arrangement of the beam and the floor slab are performed by a work machine arranged in the vicinity of the planned position of the viaduct construction. .
[9] The composite viaduct construction method according to [8] above, wherein the work machine is moved, and the CFT pillars are built and the beams and floor slabs are sequentially arranged.
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、ＰＣ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 construction in a narrow place is possible due to the joint structure of the PC beam and the CFT pillar, and the construction period can be shortened and the cost can be reduced.
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柱の柱頭に配筋を施した柱頭接合部と、前記ＣＦＴ柱上に配置され水平方向に移動させて構築可能な、シース管を有するＰＣ・ＲＣの梁および床版と、前記ＣＦＴ柱と前記梁および床版とを接合するＣＦＴ柱接合部とを具備する。 The construction structure of the composite viaduct according to the present invention includes a CFT column made of a steel pipe filled with concrete, a column head joint having a bar arranged on the column head of the CFT column, and a horizontal position arranged on the CFT column. A PC / RC beam and floor slab having a sheath tube, and a CFT column joint for joining the CFT column and the beam and floor slab are provided.
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ＰＣ・ＲＣの梁および床版である。
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.
1 to 6, 1 is a work restriction area, 2 is a vehicle, 3 is a CFT (Concrete Filled Tubular) column installed at a planned location for viaduct construction, and 4 is a beam of PC / RC built on the CFT column 3 And floor slabs.
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.
(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ＰＣ・ＲＣの梁および床版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）を移動させて、ＣＦＴ柱の建て込みを行う。
（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ＰＣ・ＲＣの梁および床版４を構築する。
(3) As shown in FIG. 3, a PC / RC beam and a floor slab 4 are constructed on a CFT column 3 by a work machine (not shown).
(4) Next, as shown in FIG. 4, the work machine (not shown) is moved to the position where the CFT pillar 3 is not built in (2) above, and the CFT pillar is built.
(5) As shown in FIG. 5, a PC / RC beam and a floor slab 4 are constructed on the CFT pillar 3 built in (4) above by a work machine (not shown).
（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ＰＣ梁（床版）、１４は高架橋１１上を走行する車両、１５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 a PC beam (floor slab) constructed on the CFT column 12, 14 is a vehicle traveling on the viaduct 11, and 15 is 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さぜるを得なかった。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工程における、ＣＦＴ柱とその上に構築されるＰＣ・ＲＣの梁および床版との接続について説明する。
図１０は本発明の実施例を示す複合高架橋のＣＦＴ柱接合部の施工方法（柱頭部の固定方法がＲＣ接合〔モルタル充填継手〕方式）の説明図である。
（１）まず、図１０（ａ）に示すように、ＣＦＴ柱２１の建て込みを行う。つまり、鋼管内にコンクリートを打設し、その柱頭接合部（上端部）に、機械式継手（図示なし）を有する配筋２２を施す。
Next, the connection between the CFT pillar and the PC / RC beam and the floor slab constructed on the construction of the composite viaduct described in FIGS.
FIG. 10 is an explanatory view of a construction method of a composite viaduct CFT column joint portion showing an embodiment of the present invention (column head fixing method is RC joint [mortar filling joint] method).
(1) First, as shown in FIG. 10A, the CFT pillar 21 is built. That is, concrete is placed in the steel pipe, and reinforcement 22 having a mechanical joint (not shown) is applied to the stigma junction (upper end).
（２）次に、図１０（ｂ）に示すように、ＣＦＴ柱２１上にシース管２３付きのグラウト孔２４を有するＰＣ梁（床版）２５を載せる。
（３）図１０（ｃ）に示すように、ＰＣ梁２５のシース管２３とＣＦＴ柱２１の上端部の配筋２２とが対応するように、ＰＣ梁２５を水平に移動させ位置決めする。
（４）図１０（ｄ）に示すように、鉄筋（柱頭接合鉄筋）２６をグラウト孔２４から挿入し、シース管２３を貫通させてＣＦＴ柱２１の柱頭接合部の配筋２２と機械式継手で接続する。
(2) Next, as shown in FIG. 10B, a PC beam (floor slab) 25 having a grout hole 24 with a sheath tube 23 is placed on the CFT column 21.
(3) As shown in FIG. 10C, the PC beam 25 is horizontally moved and positioned so that the sheath tube 23 of the PC beam 25 and the bar arrangement 22 at the upper end of the CFT column 21 correspond to each other.
(4) As shown in FIG. 10 (d), a reinforcing bar (pillar joint reinforcing bar) 26 is inserted from the grout hole 24, the sheath tube 23 is penetrated, and the reinforcing bar 22 and the mechanical joint of the CFT pillar 21 are connected. Connect with.
（５）図１０（ｅ）に示すように、シース管２３にグラウト２７を注入し、次いで、鉄筋２６の上部に位置するＰＣ梁２５のグラウト孔２４にグラウト（またはモルタル）２８を充填する。
このようなＰＣ梁とＣＦＴ柱との接合構造とすることにより、ＣＦＴ柱２１とＰＣ梁２５を強固に接合し、堅牢な複合高架橋を構築することができる。
(5) As shown in FIG. 10 (e), a grout 27 is injected into the sheath tube 23, and then a grout (or mortar) 28 is filled into the grout hole 24 of the PC beam 25 located above the reinforcing bar 26.
By adopting such a joint structure between the PC beam and the CFT column, the CFT column 21 and the PC beam 25 can be firmly joined to construct a robust composite viaduct.
図１１，１２は本発明の実施例を示す複合高架橋の施工時の平面図である。
図３に示すような先に構築したＰＣ梁（床版）４に対して図５に示すような後から構築するＰＣ梁（床版）４を接続する際には、図１１に示すように、先に構築したＰＣ梁３１，３２に対して後から構築するＰＣ梁２５を矢印Ａの方向に移動させながら、また、同時にＰＣ梁３１，３２を矢印Ｂ，Ｃの方向に回転させながら、スリーブ継手３３，３４を挿入するようにしている。そして、所定の位置にＰＣ梁２５，３１，３２を設置した後、図１０（ｄ），（ｅ）に示すように、ＣＦＴ柱２１にＰＣ梁２５を固定するため、鉄筋２６を挿入しシース管２３にグラウト２７を注入し、グラウト孔２４にグラウト（又はモルタル）２８を充填することで、図１２に示すようにＣＦＴ柱接合部を堅牢に構築することができる。
11 and 12 are plan views at the time of construction of the composite viaduct showing an embodiment of the present invention.
When connecting the PC beam (floor slab) 4 constructed later as shown in FIG. 5 to the PC beam (floor slab) 4 constructed previously as shown in FIG. 3, as shown in FIG. While moving the PC beam 25 to be constructed later with respect to the previously constructed PC beams 31 and 32 in the direction of arrow A, and simultaneously rotating the PC beams 31 and 32 in the directions of arrows B and C, Sleeve joints 33 and 34 are inserted. Then, after the PC beams 25, 31, 32 are installed at predetermined positions, as shown in FIGS. 10D and 10E, in order to fix the PC beam 25 to the CFT column 21, a reinforcing bar 26 is inserted and the sheath is inserted. By injecting the grout 27 into the tube 23 and filling the grout hole 24 with the grout (or mortar) 28, the CFT column joint can be firmly constructed as shown in FIG.
このように構成することにより、ＣＦＴ柱２１上にＰＣ梁２５を強固に接合するとともに、先に構築したＰＣ梁３１，３２と後から構築するＰＣ梁２５とを固定することができる。
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。
With this configuration, the PC beam 25 can be firmly joined to the CFT column 21 and the PC beams 31 and 32 constructed earlier and the PC beam 25 constructed later can be fixed.
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構築構造およびその複合高架橋の施工方法として利用可能である。 The composite viaduct construction structure and the composite viaduct construction method of the present invention can be constructed in a short period of time even in a narrow place and the construction cost of the composite viaduct can be reduced, and the composite viaduct construction method Is available as
１ 作業規制区域
２，１４ 車両
３，１２，２１ ＣＦＴ柱
４ ＰＣ・ＲＣの梁及び床版
１１ 高架橋
１２Ａ コンクリート
１２Ｂ 鋼管
１３，２５，３１，３２ ＰＣ梁（床版）
１５ ＣＦＴ柱接合部
２２ 配筋
２３ シース管
２４ グラウト孔
２６ 鉄筋（柱頭接合鉄筋）
２７ シース管内に充填されるグラウト
２８ グラウト孔に充填されるグラウト（モルタル）
３３，３４ スリーブ継手
Ａ，Ｂ，Ｃ ＰＣ梁の移動方向
1 Work Restriction Area 2,14 Vehicle 3,12,21 CFT Column 4 PC / RC Beam and Floor Slab 11 Viaduct 12A Concrete 12B Steel Pipe 13, 25, 31, 32 PC Beam (Slab)
15 CFT column joint 22 Reinforcement 23 Sheath tube 24 Grout hole 26 Reinforcement (capital joint rebar)
27 Grout filled in sheath tube 28 Grout filled in grout hole (mortar)
33, 34 Sleeve joint A, B, C PC beam moving direction
Claims (9)
（ｂ）該ＣＦＴ柱の柱頭に配筋を施した柱頭接合部と、
（ｃ）前記ＣＦＴ柱上に配置され水平方向に移動させて構築可能な、シース管を有するＰＣ・ＲＣの梁および床版と、
（ｄ）前記ＣＦＴ柱と前記梁および床版とを接合するＣＦＴ柱接合部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) a stigma joint in which reinforcement is applied to the stigma of the CFT pillar;
(C) a PC / RC beam and a floor slab having a sheath tube, which is arranged on the CFT pillar and can be constructed by moving in the horizontal direction;
(D) A composite viaduct construction structure comprising the CFT column and a CFT column joint that joins the beam and the floor slab.
（ｂ）該ＣＦＴ柱上に、シース管を有するＰＣ・ＲＣの梁および床版を水平方向に移動させて配置し、
（ｃ）前記ＣＦＴ柱と前記梁および床版とを接合することを特徴とする複合高架橋の施工方法。 (A) A CFT column made of a steel pipe filled with concrete, which has a reinforcement with a mechanical joint at the stigma joint,
(B) A PC / RC beam having a sheath tube and a floor slab are horizontally moved on the CFT column, and arranged.
(C) A composite viaduct construction method characterized by joining the CFT pillar, the beam, and a floor slab.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746420A (en) * | 2015-04-08 | 2015-07-01 | 福州大学 | Structure for connecting upper and lower parts of bridge wrapped with rubber cap steel tube and constructing method thereof |
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|---|---|---|---|---|
| JPS60258311A (en) * | 1984-06-01 | 1985-12-20 | 株式会社 間組 | Construction of high structure |
| JPH11264190A (en) * | 1998-03-17 | 1999-09-28 | Shimizu Corp | Joint construction for concrete-filled steel pipe column |
| JP2000265415A (en) * | 1999-03-19 | 2000-09-26 | Tenox Corp | Elevated bridge |
| JP2010138643A (en) * | 2008-12-12 | 2010-06-24 | Ohbayashi Corp | Construction method for column-beam joint part of viaduct, and viaduct |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60258311A (en) * | 1984-06-01 | 1985-12-20 | 株式会社 間組 | Construction of high structure |
| JPH11264190A (en) * | 1998-03-17 | 1999-09-28 | Shimizu Corp | Joint construction for concrete-filled steel pipe column |
| JP2000265415A (en) * | 1999-03-19 | 2000-09-26 | Tenox Corp | Elevated bridge |
| JP2010138643A (en) * | 2008-12-12 | 2010-06-24 | Ohbayashi Corp | Construction method for column-beam joint part of viaduct, and viaduct |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746420A (en) * | 2015-04-08 | 2015-07-01 | 福州大学 | Structure for connecting upper and lower parts of bridge wrapped with rubber cap steel tube and constructing method thereof |
| CN104746420B (en) * | 2015-04-08 | 2016-06-29 | 福州大学 | A kind of construction method of the bridge top and the bottom attachment structure of overcoat rubber cap steel pipe |
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| JP5587149B2 (en) | 2014-09-10 |
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