JPH06228916A - Strut of elevated bridge, etc., and construction method thereof - Google Patents

Strut of elevated bridge, etc., and construction method thereof

Info

Publication number
JPH06228916A
JPH06228916A JP5042158A JP4215893A JPH06228916A JP H06228916 A JPH06228916 A JP H06228916A JP 5042158 A JP5042158 A JP 5042158A JP 4215893 A JP4215893 A JP 4215893A JP H06228916 A JPH06228916 A JP H06228916A
Authority
JP
Japan
Prior art keywords
concrete
polystyrene block
block
strut
laminated
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
Application number
JP5042158A
Other languages
Japanese (ja)
Other versions
JP3326223B2 (en
Inventor
Yukio Fukazawa
幸雄 深沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP04215893A priority Critical patent/JP3326223B2/en
Publication of JPH06228916A publication Critical patent/JPH06228916A/en
Application granted granted Critical
Publication of JP3326223B2 publication Critical patent/JP3326223B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Bridges Or Land Bridges (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

PURPOSE:To eliminate the need for assembling a form in a narrow place and to promote work efficiency by laminating a foaming polystyrene block in a hollow section in a reinforced concrete strut, and using it as the form and a scaffold. CONSTITUTION:A foaming polystyrene block is laminated in the hollow section of a strut surrounded by vertical reinforcements 2. It is used for a scaffold in the case of execution and, at the same time, it is also used for an inside form. After that, a horizontal reinforcement 5 is arranged on the upper surface of a highest layer of the foaming polystyrene block. Then, an outside form is executed at a specific interval. After that, concrete is placed between the layer of the foaming polystyrene block and outside form. The uplift of the foaming polystyrene block in the case of the compaction of concrete is controlled by the horizontal reinforcement 5. While repeating state of work mentioned above, the reinforced concrete strut is extended up to the required height. According to the constitution, the installation and removal of the scaffold are not required, and a construction period can be reduced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、高架橋梁などのような
高い位置の構造物を支えるためのコンクリート支柱を施
工するための方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a concrete column for supporting a structure at a high position such as a viaduct beam.

【0002】[0002]

【従来の技術】高架橋梁などのような高所に構築される
構造物を支えるコンクリート支柱は、図6に示したよう
に多数の鉄筋aを配し、中空bを形成した鉄筋コンクリ
ート支柱として施工されるのが一般である。ここで中空
bを形成するのは、使用コンクリート量を削減すること
と、中空状にしてもコンクリート構造物自体の応力に対
する強度は低下することがないという理由による。たと
えば、一辺6メートルで中空が一辺4メートルの支柱を
施工しようとすれば、鉄筋工を完了した後に外側・内側
に足場を組み、型枠工によってコンクリート厚を確保
し、コンクリートを打設してある程度乾燥すれば支保を
残した状態で型枠を撤去するという作業を数メートル高
さづつ繰り返すという工法を採用することになる。
2. Description of the Related Art A concrete support pillar for supporting a structure constructed at a high place such as a viaduct beam is constructed as a reinforced concrete support pillar having a large number of reinforcing bars a and a hollow b as shown in FIG. It is general that The reason why the hollow b is formed here is that the amount of concrete used is reduced and that the strength of the concrete structure itself against stress does not decrease even if it is hollow. For example, if you are going to construct a pillar with a side length of 6 meters and a hollow length of 4 meters, scaffolding will be built inside and outside after completing the reinforcing work, and the concrete thickness will be secured by the formwork, and the concrete will be placed. If it is dried to some extent, the method of removing the formwork with the support remaining is repeated every several meters in height, which is a method to be adopted.

【0003】[0003]

【発明が解決しようとする課題】ところで、上述した従
来工法では、数メートルごとに型枠工、型枠撤去を繰り
返さなければならず、コンクリート支柱が比較的低い場
合にはともかく、数十メートルの支柱を立設する場合に
は非常に作業効率が悪い。特に中空部の型枠施工に際し
ては所定高さごとに落下防止用のネットを張設し、打設
作業が完了すればネットを取り外すという作業を行わな
ければならず、手間がかかると共に、狭い場所での足場
組みは非常に危険である。
By the way, in the above-mentioned conventional method, the formwork and the formwork removal must be repeated every several meters, and even if the concrete support is relatively low, the length of several tens of meters is required. The work efficiency is very poor when the columns are erected. In particular, when constructing the formwork of the hollow part, it is necessary to stretch the fall prevention net at a predetermined height and remove the net when the placing work is completed, which is troublesome and a narrow space. Scaffolding at is very dangerous.

【0004】さらに、支柱の基礎cからの立ち上がりで
は図7に示したように、強度上の要請から内側端法面を
確保するためにハンチコンクリートdを形成しなければ
ならないが、型枠工で施工するのは手間がかかり、さら
に打設コンクリートが十分に法面に沿って充填されにく
いという問題もある。
Further, as shown in FIG. 7, when the pillars are raised from the foundation c, haunch concrete d must be formed in order to secure the inner end slope due to the requirement for strength. There is also the problem that it takes time and effort to construct, and that it is difficult to fill the poured concrete along the slope sufficiently.

【0005】本発明では上述した従来の課題を解決する
ことを目的としたもので、発泡ポリスチレンを利用して
コンクリート支柱を施工するもので、特に設計強度を維
持しつつ中空の施工を簡易にした支柱およびその施工方
法を提供するものである。
The present invention is intended to solve the above-mentioned conventional problems, and is to construct concrete columns by using expanded polystyrene, and particularly to simplify hollow construction while maintaining design strength. A pillar and a construction method thereof are provided.

【0006】[0006]

【課題を解決するための手段】本発明では、上述した目
的を達成するために、中空の鉄筋コンクリート構造の高
架橋梁などの支柱において、上記中空部には所定の高さ
単位に発泡ポリスチレンブロックを積層し、上記所定の
高さ単位ごとに上記発泡ポリスチレンブロックを、支柱
の縦筋に結束した横筋によって隔離した支柱構造を採用
することとした。また、その施工方法として、発泡ポリ
スチレンブロックを上記中空部に所定の高さに積層し、
さらに上記ブロックの最上層天面上に支柱の縦筋に結束
しながら横筋を配筋すると共に、所定間隔で外側型枠を
施工し、上記積層したブロックと外側型枠の間にコンク
リートを打設した後、上記横筋の上にさらに上記ブロッ
クの積層、および外側型枠の施工を繰り返すという手段
を採用した。
According to the present invention, in order to achieve the above-mentioned object, in a pillar such as a viaduct having a hollow reinforced concrete structure, a polystyrene foam block is laminated in a predetermined height unit in the hollow portion. Then, it is decided to adopt a strut structure in which the expanded polystyrene block is separated for each of the predetermined height units by a horizontal streak that is bound to a longitudinal streak of the strut. Further, as a construction method thereof, the expanded polystyrene block is laminated at a predetermined height in the hollow portion,
Furthermore, while arranging the horizontal streaks while binding to the vertical streaks of the pillars on the top surface of the uppermost layer of the block, an outer formwork is constructed at predetermined intervals, and concrete is placed between the laminated blocks and the outer formwork. After that, a means of repeating the lamination of the blocks and the construction of the outer mold on the transverse lines was adopted.

【0007】[0007]

【作用】発泡ポリスチレンブロックは支柱の中空部にな
るべき場所に積層されるが、施工時の足場として機能す
ると同時に埋め殺しの内側型枠の作用を行う。また、縦
筋に結束される横筋はコンクリートの締め固め時のブロ
ックの浮き上がりを規制する作用を行い、コンクリート
の打設後には支柱内に鉄筋コンクリートスラブの隔壁が
等間隔で形成され、ねじれ応力に対する補強的な機能を
行うことになる。さらに、ブロックはその断熱機能によ
りコンクリートの養生により適した環境を与える機能を
有する。
[Function] The expanded polystyrene block is laminated in a place which should be a hollow portion of the column, but it functions as a scaffold during construction and at the same time functions as an inner mold for burying. In addition, the horizontal bar tied to the vertical bar acts to control the lifting of the block when the concrete is compacted, and after the concrete is placed, the partition walls of the reinforced concrete slab are formed at equal intervals within the column to reinforce it against torsional stress. Function. Further, the block has a function of providing an environment more suitable for curing concrete due to its heat insulating function.

【0008】[0008]

【実施例】以下、本発明の一実施例を添付した図面に従
って説明する。図1は支柱の基礎を斜視図として示した
もので、1は鋼管矢板を地中に埋め込み、コンクリート
で固めた基台、2…2は基台1を設ける際にコンクリー
トに同時に立設された多数の縦筋であり、これらの縦筋
に沿ってロ字状に中空部が形成された状態で鉄筋コンク
リート支柱が施工される。点線3・3で示した部分がコ
ンクリート支柱の立設される箇所である。この基台1を
施工する点については、従来の工法と同様である。な
お、縦筋2の本数および配筋形状などは強度計算によっ
て設計時に決定されるが、図面上では煩雑を避けるため
に必要最小限に省略している。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. Fig. 1 shows a perspective view of the foundation of a support column, 1 is a base embedded with steel pipe sheet pile in the ground, and is solidified with concrete. 2 ... 2 are erected simultaneously on the concrete when the base 1 is provided. Reinforced concrete columns are constructed with a large number of vertical streaks, and hollow portions are formed in a square shape along these vertical streaks. The part shown by the dotted line 3.3 is the part where the concrete pillar is erected. The construction of the base 1 is the same as the conventional construction method. Note that the number of vertical streaks 2 and the bar arrangement shape are determined at the time of design by strength calculation, but are omitted to the minimum necessary in order to avoid complication in the drawing.

【0009】次に図2は、中空部となるべき部分に複数
の発泡ポリスチレンブロック4…4を積層したところを
示す断面図である。ブロック4の積層に際しては、直方
体ブロックを所定の高さに至るまで複数階層積層する
が、ずれを防止するために、それぞれのブロックの上下
面に予めボスおよびボス穴を一体に成形しておき、これ
らを嵌合させながら積層すればよい。なお、ずれを防止
するための構造としては上記ボスおよびボス穴の嵌合だ
けにとどまらず、たとえば板状の爪を各階層ごとに立設
し、この爪にブロックを突き刺すことによって固定する
などの手段を採用することができる。なお、最下段のブ
ロック4aの下側は45度にカットされて法面を形成し
ており、ハンチコンクリートの型枠としての機能を行
う。
Next, FIG. 2 is a sectional view showing a state in which a plurality of expanded polystyrene blocks 4 ... 4 are laminated in a portion to be a hollow portion. When stacking the blocks 4, the rectangular parallelepiped blocks are stacked in a plurality of layers up to a predetermined height, but in order to prevent displacement, bosses and boss holes are integrally formed in advance on the upper and lower surfaces of each block, It suffices to stack them while fitting them. Incidentally, the structure for preventing the displacement is not limited to the fitting of the boss and the boss hole, and for example, plate-like claws are erected for each layer, and blocks are pierced into the claws to fix the claws. Means can be employed. The lower side of the lowermost block 4a is cut at 45 degrees to form a slope, which functions as a formwork for haunch concrete.

【0010】図2に続く工程を図3に示す。図2のよう
にブロック4…4を所定高さまで積層した後に、ブロッ
クの最上層上面に近接して横筋5を網目状に配筋する。
横筋5同士の交差点は針金で結束することはもちろんで
あるが、仕舞いを縦筋2に結束して固定する。このよう
に横筋5を縦筋2に結束するのは、後にコンクリートを
打設したときにブロック4…4が浮力によって大きく浮
き上がるのを防止するためである。横筋5の配筋間隔や
本数などはブロック全体の浮力計算によって算出する。
続いて図4に示したように、所定の壁厚を確保して外側
型枠6を施工し、矢印Aのようにコンクリートを打設す
る。コンクリートの打設面は横筋5よりやや下までとす
る。このようにしてコンクリートにバイブレータで振動
を与えれば締め固められるのである。なお、縦筋2には
さらに新たな縦筋2a…2aを結束して次段の縦筋とす
ることはもちろんである。ところで、ブロック4…4は
浮力と横筋5…5による押さえとの力関係で圧縮を受
け、その変形量だけ最下段のブロック4aと基台の間に
ある程度の隙間ができるが、コンクリートを徐々に打設
し、十分な振動によって締め固めることによってコンク
リートが隙間に回り込む。従って、基台1の水準から幾
分上方にブロック4aの法面によってハンチコンクリー
ト7を施工できることになる。
The steps following FIG. 2 are shown in FIG. 4, the blocks 4 ... 4 are stacked to a predetermined height, and then the horizontal streaks 5 are arranged in a mesh shape in the vicinity of the upper surface of the uppermost layer of the blocks.
Needless to say, the intersections of the horizontal streaks 5 are tied together with a wire, but the ends are bound and fixed to the vertical streaks 2. The reason why the horizontal bars 5 are bound to the vertical bars 2 in this way is to prevent the blocks 4 ... The distance between the horizontal bars 5 and the number of bars are calculated by buoyancy calculation of the entire block.
Subsequently, as shown in FIG. 4, a predetermined wall thickness is secured, the outer formwork 6 is constructed, and concrete is poured as indicated by an arrow A. The concrete pouring surface should be slightly below the horizontal bar 5. In this way, concrete can be compacted by vibrating it with a vibrator. It is needless to say that new vertical streaks 2a ... 2a are bound to the vertical streaks 2 to form the next vertical streaks. By the way, the blocks 4 ... 4 are compressed due to the force relationship between the buoyancy and the pressing force by the horizontal streaks 5 ... The concrete wraps around the gap by placing it and compacting it with sufficient vibration. Therefore, the haunch concrete 7 can be constructed slightly above the level of the base 1 by the slope of the block 4a.

【0011】上述のように第1段の施工が完了すれば、
図5に示したように第1段と全く同様にブロック4…4
を積層し、さらに横筋5…5を配筋して外側型枠との間
にコンクリートを打設する。この場合、コンクリートに
振動を与えると上述した第1段の施工と同様に、ブロッ
ク4…4が浮力と第2段横筋の押さえ力との関係で第1
段横筋5a面から幾分浮き上がって隙間8ができるが、
やはり比較的柔らかいコンクリートであれば隙間7に回
り込み、横筋5aを含んでスラブを構成することにな
る。従って、完成した支柱は等間隔に存在する鉄筋コン
クリートスラブによって補強され、ねじれ応力に対して
より強化される。
When the first stage construction is completed as described above,
As shown in FIG. 5, the blocks 4 ... 4 are exactly the same as the first stage.
Are laminated, and further horizontal bars 5 ... 5 are laid out, and concrete is placed between the outer mold and the outer mold. In this case, when vibration is applied to the concrete, as in the case of the first-stage construction described above, the blocks 4 ... 4 have the first relationship due to the relationship between the buoyancy force and the second-stage lateral bar pressing force.
Although it rises somewhat from the step horizontal streak 5a surface to form a gap 8,
After all, if the concrete is relatively soft, it will sneak into the gap 7 and form the slab including the horizontal streaks 5a. Therefore, the completed stanchions are reinforced by evenly spaced reinforced concrete slabs and more strengthened against torsional stress.

【0012】なお、ブロック4…4として発泡倍率が小
さいポリスチレンブロックを用いた場合には応力変形を
受けにくいので、浮力と押さえ力との力関係によっても
ほとんど圧縮を受けず、隙間8も非常に狭くなる。この
ときにはコンクリートが隙間に回り込まないので、コン
クリートスラブを形成することはない。本発明では上述
した実施例と、コンクリートスラブを形成しない実施例
の何れも可能であるが、支柱が要求される強度や高さに
応じて適宜採用できる。
When a polystyrene block having a small expansion ratio is used as the blocks 4, ..., Since it is less susceptible to stress deformation, it is hardly compressed due to the force relationship between the buoyancy force and the pressing force, and the gap 8 is very small. Narrows. At this time, concrete does not go around the gap, so that no concrete slab is formed. In the present invention, both the above-described embodiment and the embodiment in which the concrete slab is not formed are possible, but can be appropriately adopted depending on the strength and height required for the support column.

【0013】[0013]

【発明の効果】本発明では、従来は中空にしていた場所
に発泡ポリスチレンブロックを積層し、これを内側型枠
として利用しているので、狭い場所において型枠組みを
する必要がなく、作業性が大幅に向上する。また、ブロ
ックは所定高さに至るまで順次積層し、これをそのまま
中空部に充填するので足場を兼用することになり、便利
であると共に足場作業などの特殊作業員が不要になり、
人的問題を解消することができる。しかも、足場などの
撤去作業が全くないので、所定高さ単位で連続して施工
することができ、工期も大幅に短縮することができる。
According to the present invention, a foam polystyrene block is laminated in a conventionally hollow space and is used as an inner mold, so that it is not necessary to form a mold in a narrow space and workability is improved. Greatly improved. Also, the blocks are sequentially stacked up to a predetermined height, and the hollow part is filled as it is, so that it also serves as a scaffold, which is convenient and does not require special workers such as scaffolding work.
Human problems can be resolved. Moreover, since there is no work to remove the scaffolding, the work can be continuously performed in units of a predetermined height, and the construction period can be greatly shortened.

【0014】さらにまた、発泡ポリスチレンブロックは
所定間隔で配筋された横筋によって規制され、コンクリ
ートの締め固め時でも浮力による浮き上がりを抑制する
ことができるとともに、施工後には横筋部分にコンクリ
ートが回り込むようにすれば支柱内部に等間隔で鉄筋コ
ンクリートスラブの隔壁が形成され、支柱強度を高める
ことができる。コンクリートスラブを省略した場合であ
っても、横筋が引っ張り強度を高めているので、全体と
して支柱の強度を向上することができる。また、内側型
枠として発泡ポリスチレンを使用しているので断熱効果
が高く、打設したコンクリートの養生に要する時間を短
縮できるなど、本発明の利用価値は高い。
Furthermore, the expanded polystyrene block is restricted by the horizontal bars arranged at predetermined intervals, so that it is possible to suppress the lifting due to the buoyancy even when the concrete is compacted, and after the construction, the concrete wraps around the horizontal bars. By doing so, partition walls of the reinforced concrete slab are formed at regular intervals inside the columns, and the column strength can be increased. Even if the concrete slab is omitted, the transverse bars increase the tensile strength, so that the strength of the column as a whole can be improved. Further, since expanded polystyrene is used as the inner mold, the heat insulating effect is high, and the time required for curing the placed concrete can be shortened, and the utility value of the present invention is high.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の支柱が立設される基台を示す斜視図、FIG. 1 is a perspective view showing a base on which a pillar of the present invention is erected.

【図2】発泡ポリスチレンブロックを積層したところを
示す断面図、
FIG. 2 is a cross-sectional view showing a laminated polystyrene foam block,

【図3】ブロック上面に横筋を配筋したところを示す断
面図、
FIG. 3 is a cross-sectional view showing a horizontal bar arranged on the upper surface of the block;

【図4】図3の施工後に外側型枠を施工したところを示
す断面図、
FIG. 4 is a cross-sectional view showing a state where the outer formwork is constructed after the construction of FIG. 3;

【図5】第2層のブロックを積層してコンクリートを打
設した状態を示す断面図、
FIG. 5 is a cross-sectional view showing a state in which second-layer blocks are stacked and concrete is placed therein;

【図6】従来工法における支柱の一部破断斜視図、FIG. 6 is a partially cutaway perspective view of a column in a conventional method,

【図7】支柱の基礎部分を示す断面図である。FIG. 7 is a cross-sectional view showing a basic portion of a column.

【符号の説明】[Explanation of symbols]

1 基台 2 縦筋 4 ブロック 5 横筋 6 外側型枠 1 Base 2 Vertical line 4 Block 5 Horizontal line 6 Outer formwork

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】中空の鉄筋コンクリート構造の高架橋梁な
どの支柱において、上記中空部には所定の高さ単位に発
泡ポリスチレンブロックを積層し、上記所定の高さ単位
ごとに上記発泡ポリスチレンブロックを、支柱の縦筋に
結束した横筋によって隔離したことを特徴とした高架橋
梁などの支柱。
1. A pillar such as a viaduct having a hollow reinforced concrete structure, in which expanded polystyrene blocks are laminated in a predetermined height unit in the hollow portion, and the expanded polystyrene block is supported in a predetermined height unit. Posts such as viaduct beams characterized by being separated by the horizontal bar that is bound to the vertical bar.
【請求項2】中空の鉄筋コンクリート構造の高架橋梁な
どの支柱において、発泡ポリスチレンブロックを上記中
空部に所定の高さに積層し、さらに上記ブロックの最上
層天面上に支柱の縦筋に結束しながら横筋を配筋すると
共に、所定間隔で外側型枠を施工し、上記積層したブロ
ックと外側型枠の間にコンクリートを打設した後、上記
横筋の上にさらに上記ブロックの積層、および外側型枠
の施工を繰り返すことを特徴とした高架橋梁などの支柱
の施工方法。
2. In a pillar such as a viaduct having a hollow reinforced concrete structure, an expanded polystyrene block is laminated at a predetermined height in the hollow portion, and is further bound to a vertical bar of the pillar on the top surface of the uppermost layer of the block. While arranging the horizontal bars while constructing the outer formwork at a predetermined interval, after placing concrete between the laminated block and the outer formwork, further stacking the blocks on the horizontal bar, and the outer mold A method of constructing columns such as viaducts, which is characterized by repeating the construction of frames.
JP04215893A 1993-02-05 1993-02-05 Supports such as viaduct beams and their construction methods Expired - Fee Related JP3326223B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04215893A JP3326223B2 (en) 1993-02-05 1993-02-05 Supports such as viaduct beams and their construction methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04215893A JP3326223B2 (en) 1993-02-05 1993-02-05 Supports such as viaduct beams and their construction methods

Publications (2)

Publication Number Publication Date
JPH06228916A true JPH06228916A (en) 1994-08-16
JP3326223B2 JP3326223B2 (en) 2002-09-17

Family

ID=12628148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04215893A Expired - Fee Related JP3326223B2 (en) 1993-02-05 1993-02-05 Supports such as viaduct beams and their construction methods

Country Status (1)

Country Link
JP (1) JP3326223B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033669A (en) * 2002-10-15 2004-04-28 김두원 A steel girder outconer form and a method of assembling steel girder form
JP2020060077A (en) * 2018-10-12 2020-04-16 鹿島建設株式会社 Bridge pier construction method and bridge pier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033669A (en) * 2002-10-15 2004-04-28 김두원 A steel girder outconer form and a method of assembling steel girder form
JP2020060077A (en) * 2018-10-12 2020-04-16 鹿島建設株式会社 Bridge pier construction method and bridge pier

Also Published As

Publication number Publication date
JP3326223B2 (en) 2002-09-17

Similar Documents

Publication Publication Date Title
US3918222A (en) Prefabricated modular flooring and roofing system
US9388561B2 (en) Modular construction mold apparatus and method for constructing concrete buildings and structures
US4147009A (en) Precast panel building construction
US5588272A (en) Reinforced monolithic concrete wall structure for spanning spaced-apart footings and the like
KR101903628B1 (en) Precast Double Wall Structure with Enhanced Seismic Performance and Construction method thereof
KR100742577B1 (en) Composite structural framing system
WO2009002865A1 (en) Framing structure
US5501055A (en) Method for reinforced concrete construction
CN103046645A (en) Large span prefabricated monolithic casting structure and construction method
JP6685570B1 (en) PC basic structure and construction method thereof
JPH06264410A (en) Prefabrication method of bridge pier and bridge pier concrete block
JPH06264412A (en) Prefabrication method of bridge pier and bridge pier concrete block
CN112277153A (en) Cavity wall and production method thereof
JP3326222B2 (en) Supports such as viaduct beams and their construction methods
JPH06228916A (en) Strut of elevated bridge, etc., and construction method thereof
JP3333787B2 (en) Prefabricated bridge pier
US20070079570A1 (en) Reinforced Concrete Forming System
CN112359965A (en) Precast concrete assembled structure with rib mold structure and construction method thereof
JP2003239435A (en) Reinforced-concrete void slab structure and its building method
JP2000160687A (en) Construction method for composite structure and precast concrete column
JP3047817B2 (en) Method of placing concrete so that it can be separated
JPH07268813A (en) Construction method of concrete structure
CN113846789B (en) Assembled concrete bidirectional ribbed floor structure and construction method thereof
KR102028828B1 (en) Post tension flat slab sturcture construction method using rib type slab and waffle type drop
JPH0742114A (en) Construction method for concrete-filled steel pipe multi-pillar type bridge pier

Legal Events

Date Code Title Description
S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090705

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100705

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100705

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110705

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120705

Year of fee payment: 10

LAPS Cancellation because of no payment of annual fees