JP3579333B2 - Floor slab structure and construction method of floor slab - Google Patents

Floor slab structure and construction method of floor slab Download PDF

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Publication number
JP3579333B2
JP3579333B2 JP2000233722A JP2000233722A JP3579333B2 JP 3579333 B2 JP3579333 B2 JP 3579333B2 JP 2000233722 A JP2000233722 A JP 2000233722A JP 2000233722 A JP2000233722 A JP 2000233722A JP 3579333 B2 JP3579333 B2 JP 3579333B2
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Japan
Prior art keywords
floor slab
fitting
steel
reinforcing bar
concrete
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JP2002013109A (en
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美由紀 酒谷
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株式会社シェグ橋梁研究所
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Description

【0001】
【発明の属する技術分野】
本発明は、床版を構成する床版構造体及び床版の施工方法に関するものである。
【0002】
【従来の技術】
一般の床版は、合板ベニアを支保工という仮設材で支えながら型枠とし、その内側に鉄筋を組み立てた後、コンクリートを注入して乾燥養生後に型枠材を解体して完成させる施工方法が最も多く、プレファブ床版といわれているものが一部に存在する。
図8、 図9を参照しながら、従来の床版の施工方法及び構成の概略について説明する。
【0003】
即ち、図8から理解される様に、床版は、鉄筋とコンクリートの構成体である。
一部には、全てが鋼製で構成されている床版も存在する。
【0004】
また図8から理解されるように一般的な床版を製作するには、支保工により型枠を支えた上で鉄筋を組み立てた後にコンクリートを注入する。
【0005】
型枠を造る人を型枠工、 鉄筋を組み立てる人を鉄筋工と称してそれぞれ熟練者が施工するため、熟練工の不足や工事費の高騰、工事施工日数の負担が多いことが現状である。
【0006】
一方図9のプレファブ床版は工場で床版製作専門の型枠を組み立てて、その中に鉄筋を組み込み、コンクリートを流し込み、なお且つ硬化するまで4〜28日間養生をしてから型枠を外すことにより、完成し現場に運搬した後クレーン等により架設をする。
【0007】
この施工方法は、工事施工日数の負担が少ない一方、工場にてコンクリートを注入したものを現場に運搬するため運搬作業はその重量からしても効率も悪く、費用と時間を要するまた製作は、専門の大型工場が必要となり設備を要する。
【0008】
【発明が解決しようとする課題】
従って本発明の目的は、上記した従来技術の欠陥を改良し 運搬や施工作業が容易で、工期は短く、製作及び施工コストが低くて、しかも大きな剛性、耐震性をもっており、さらに高い耐久性を備えた床版構成体及びこの床版の施工方法を提供するものである。
【0009】
【解決するための手段】
本発明は、上記した目的を達成するため、以下に記載されたような基本的な技術構成を採用するものである。
即ち、本発明に係る床版構造体の第1の態様としては、鉄筋と鋼製型枠とで構成された床版構造体であって、当該床版は、当該鉄筋が上下2段に配置され、当該上段の鉄筋と当該下段の鉄筋はX型鋼製金具の各端縁部のそれぞれと固定されており、且つ当該X型鋼製金具のX字中心部に、その一端部が当該鋼製型枠と接続されている吊金具の他端部が接続されており、それによって当該上段鉄筋、当該下段鉄筋、当該X型鋼製金具からなる立体構成物と当該鋼製型枠とが吊金具を介して一体的に固定されている床版構造体である。
又本発明に係る第2の態様としては、当該床版構造体は、橋梁建設現場以外の場所で製作され、当該橋梁建設現場で当該複数個の床版構造体が橋脚或いは橋台上に相互に隣接する様に架設配置された後、当該上段鉄筋及び当該下段鉄筋の配列方向とは直角の方向に交わる配力筋を現場で挿入し結束せしめた後に、当該構造物ないに形成されている空間領域内にコンクリートが注入されて形成されている床版構造体である。
【0010】
更に、本発明に係る第3の態様としては、上記した請求項1乃至3の何れかに記載された当該床版構造体を橋台上又は橋脚上又は梁上に架設搭載させる工程と、当該床版構造体の該空間領域内にコンクリートを注入する工程とから構成されている床版構造体の施工方法である。
【0011】
【発明の実施の形態】
本発明に係る当該床版構造体及び床版の施工方法は、上記した様な技術構成を採用しているので、基本的には主構成体は、工場にて製作される構造を有する事によって、従来の床版と異なり、現場での工数を低く抑えることが可能とになり、コストを低減するのみならず鋼製型枠がコンクリートの劣化防止効果を果たすので、寿命の延長とユンクリート落下事故を永久に防止することが可能である。
【0012】
さらに、床版の運搬作業や、施工作業を容易に行うことができるようになるので、工期と工事費を大幅に低減することが可能となる。
【0013】
【実施例】
以下に本発明に係る床版構造体及び床版ならびに床版の施工方法の幾つかの具体例を図面を参照しながら詳細に説明する。
即ち図1は、本発明に係る床版構造体1の具体例の構成を示す斜視図であり、図中、該外部橋桁4の上部に当該床版構造体1が架設されている。
【0014】
当該床版構造体1の構成は,鋼製型枠5の内部に上段鉄筋6、下段鉄筋7が、X型鋼製金具8及び吊金具7によって固定されていることを示し、なお且つ架設後に現場で,挿入、緊結される配力筋10が示されている。
【0015】
本発明に於ける当該床版構造体1に形成された当該空内領域21内には、後工程に於いてコンクリートが注入される様構成されているものである。
【0016】
又、本発明における当該床版構造体1は、配力筋10を除き、全て工場又は当該現場外にて製作されることを原則とする。
【0017】
即ち図2で示すとうり、工場製作された床版構造体1は、トラック等により現場まで運搬されて、クレーン等により順序正しく架設されてゆく。
【0018】
ただし、床版構造体1を架設する以前の工程としては、橋台2及び橋脚3の上部に架設された桁4が既に架設されていることが前提となる。
【0019】
さらに図2で示すとうり床版構造体1は所定の順序で架設敷設された後、に図1で示す配力筋10を挿入し上段鉄筋6及び下段鉄筋7と鉄線により結束される。
これにより鉄筋コンクリートの主材である圧縮側、引張側の骨材が完了する。
【0020】
配力筋10の緊結が完了すると、当該床版構造体1の内部にコンクリートを流し込み養生期間を経て床版は完成する。
【0021】
本発明における当該床版構造体1の製作方法について説明する。 図3、図4、図5は、当該床版構造体1の1部を示したものである。 図4における上段鉄筋6及び下段鉄筋7には、例えばリング状の形状を持つ止め金具等で構成される鋼製の嵌合部材11が、プレス圧着にて固定される。
【0022】
プレス圧着する理由は、床版の主材である上段鉄筋6及び下段鉄筋7に対して溶接などにより高温の熱を与えることは当該鉄筋に性能変化を与えることになるので、これをせずにプレス圧着により固定するものである.
【0023】
又、本発明においては、当該鋼製嵌合部材11の材質としては鋼製の円筒状のものを選択する
【0024】
更に 図3で示すとうり、上段鉄筋6及び下段鉄筋7に固着された鋼製嵌合部材11X型鋼製金具8を溶接により固着することにより、上段鉄筋6及び下段鉄筋7及びX型鋼製金具8、鋼製嵌合部材11が強固な一体的構造物となる
又、本発明に於いて使用される当該X型鋼製金具8は、図5に示す様に、4箇所に形成されている各端縁部のそれぞれが個別に各鉄筋の所定の部位と溶接方式等の適宜の接合手段を用いて接合されている事が望ましく、更に好ましくは、当該各鉄筋の所定の部位と当該X型鋼製金具8の4箇所に形成されている各端縁部のそれぞれとが、予め当該各鉄筋の所定の部位に嵌合固定されている当該鋼製嵌合部材11を介して溶接等の方法で接合固着されているものであっても良い。
更に、本発明に於いては、当該X型鋼製金具8のX字中心部に、その一端部が当該鋼製型枠5と接続されている吊金具9の他端部が接続されており、それによって当該上段鉄筋6、当該下段鉄筋7、当該X型鋼製金具8からなる立体構成物と当該鋼製型枠5とが吊金具を介して一体的に固定されているものである事が望ましい。
【0025】
更に、X型鋼製金具8と鋼製型枠5とを吊材9を介して溶接固着することにより、上段鉄筋6及び下段鉄筋7に固着された鋼製嵌合部材11にX型鋼製金具8及び吊材9及び鋼製型枠5が一体のものとなり、床版構造体1が完成する。
【0026】
床版構造体1のそれぞれの部材は、鋼製であることが望ましい。
【0027】
本発明において、最も特徴的であるものはX型鋼製金具8を採用していることであるが、その理由は二つあり、第1の理由はコンクリートを打設したときにコンクリートの流動」性が確保されて均一なコンクリートを生むことが,可能であることと、第2の理由としては、上段鉄筋6及び下段鉄筋7及びX型鋼製金具8の外部構造が、最も合理的なトラス構造となり、これが従来の鉄筋コンクリート床版以上の剛性を果たすものである。
【0028】
更に、本発明に含まれる当該床版構造体1に於いては、当該橋桁構造体4の本体部長手方向の引張強度を向上させる為に、PC鋼棒を組み入れることも望ましい。
【0029】
本発明に係る当該床版構造体1の一具体例に於ける一部拡大図が図6に示されている
図6から理解される様に、適宜の上段鉄筋6及び下段鉄筋7が、桁4上に適宜の手段、例えば溶接、溶着等の手段により仮止された状態で配置されている。
【0030】
又、本発明に係る当該床版構造体1内に打設されるコンクリートは、当該床版構造体1内に均一に打設されることが望ましい
又、本発明に係る床版構造体1内に打設するコンクリートが,下部に漏れないことが望ましい
【0031】
一方、本発明に係る当該床版構造体1に於ける本体の長手方向の少なくとも一方の端部に、他の床版構造体1の本体部の端部を接続連結固定させる固定部材が設けられている事が望ましい。
係る、固定部材の構造は特に限定されるものではないが、従来公知の連結手段を使用する事が可能である。
【0032】
次に本発明に係る当該床版の施工方法について図2を参照しながら説明する。
先ず床版構造体1を製造する工場或いは施工現場に於いて、複数個の床版構造体1をトラックなどに積載して現場に搬入し、クレーン等により床版構造体1を1体づつ順序正しく架設をする。
【0033】
床版構造体1を数体敷設下ところで、配力筋10を挿入し上段鉄筋6及び下段鉄筋7との交点を細い鉄線などにより緊結する。
【0034】
上記作業を繰り返すことにより、床版の敷設が完了し、コンクリートを最後に全体に打設することにより完成する。
【0035】
コンクリートが固化すると、コンクリート、床版構造体1が一体化して、剛性構造となり、大きな剛性をもち、しかも従来の床版に比べて高い剛性の床版ができるので、従来の技術を使用した場合より桁4の間隔を長くでき、桁4の数を少なくする事ができる。
また、床版構造体1の本体が床版の外壁を構成することになるので、コンクリート型枠を組んだり、これを外したりする必要がない。
【0036】
さらに、仮設材をまったく設けずに床版構造体1を施工することが可能となる。
即ち、本発明に於ける床版の施工方法としては、基本的には、上記した構成からなる当該床版構造体1を橋台上又は橋脚上に敷設する工程及び当該床版構造体1の該空間領域内にコンクリートを注入する工程とから構成されているものであり、又他の態様としては、複数の当該床版構造体1を一定の方向に直線的に配置隣接させ、それぞれの当該床版構造体の互いに隣接する端部同士を互いに連結する工程、当該連結された床版構造体を橋台又は橋脚上に架設搭載させる工程とから構成されている床版の施工方法である。
【0037】
以上本発明の実施の形態について詳述してきたが、具体的な構成は、この実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲における設計の変更などがあっても本発明に含まれる。
【0038】
【発明の効果】
以上のように本発明によれば、従来の床版は、全ての工程を現場で製作する工法ど違って、主要な構造物を全て、工場で行い、正確な製品を現場に搬入し、わずか,配力筋を挿入して結束するだけの工程を消化するだけでコンクリート打設作業ができるので、工期は早く労働力の縮減を提供できて正確な床版を完成することができる。
【0039】
さらに、コスト面においては,床版の運搬作業や、施工作業を容易に行うことができるようになるので、工事費を大幅に低減することが可能となる。 また、鋼製嵌合部材11とX型鋼製金具8を使用することにより、工場での作業能率が向上し、工場製作コストを低減できるほか、床版の剛性にも好影響を与える。
【図面の簡単な説明】
【図1】図1は本発明の床版構造体の一具体例の構成を示部分斜視図である。
【図2】図2は、本発明の床版構造体の他の具体例の構成を示す断面図である。
【図3】図3は、本発明の床版構造体の具体例における断面構造を示す部分断面図である。
【図4】図4は、本発明の床版構造体における具体例における断面構造を示す部分断面図である。
【図5】図5は、本発明の床版構造体における具体例における断面構造を示す部分断面図である。
【図6】図6は、本発明の床版構造体の一具体例における断面構造を示す断面図である。
【図7】図7は、本発明の床版構造体の具体例における平面構造を示す平面図である。
【図8】 図8は、従来の床版構造体の具体例における断面構造を示す断面図である。
図9】 図9は、従来の床版構造体の具体例における平面構造を示す平面図である。
【符号の説明】
1 床版構造体
2 橋台
3 橋脚
4 桁
5 鋼製型枠
6 上段鉄筋
7 下段鉄筋
8 X型鋼製金具
9 吊材
10 配力筋
11 鋼製嵌合部材
21 床版構造体空間領域
22 型枠ベニア
23 PC床版
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a slab structure that constitutes a slab and a method of constructing the slab.
[0002]
[Prior art]
General of the floor version, the plywood veneer and mold while supporting in temporary material that shoring, after assembly of the rebar to the inside, to be completed by dismantling the mold material after drying curing by injecting concrete construction Most methods are used , and some of them are called prefabricated floor slabs.
FIG. With reference to FIG. 9 , an outline of a conventional floor slab construction method and configuration will be described.
[0003]
That is, as understood from FIG. 8, the floor slab is a structure composed of a reinforcing bar and concrete.
Some slabs are entirely made of steel .
[0004]
Also in fabricating the typical slab As understood from FIG. 8 injects concrete after assembling the reinforcing bar after having supported the mold by shoring.
[0005]
Formwork to make people a mold factory, for each person skilled people to assemble the rebar is referred to as a rebar Engineering is construction, shortages and soaring construction costs of skilled workers, it is often the burden of construction and installation dates at present.
[0006]
On the other hand, the prefabricated floor slab of FIG. 9 is assembled at a factory with a formwork specializing in floor slab production, a reinforcing bar is incorporated therein, concrete is poured, and after curing for 4 to 28 days, the form is removed. After that, it is completed and transported to the site, and then erected by a crane or the like.
[0007]
This construction method has a small burden on the number of days required for construction work, but the transportation work is inefficient because of the weight of the concrete that has been poured at the factory and transported to the site, which requires cost and time. Specialized large factories are required and equipment is required.
[0008]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to improve the above-mentioned deficiencies of the prior art, to facilitate transportation and construction work, to shorten the construction period, to reduce production and construction costs, and to have high rigidity and seismic resistance, and to further enhance durability. An object of the present invention is to provide a provided floor slab and a method of installing the floor slab .
[0009]
[Means to Solve]
The present invention employs the following basic technical configuration to achieve the above object.
That is, a first embodiment of the floor slab structure according to the present invention is a floor slab structure including a reinforcing bar and a steel form, and the floor slab has the reinforcing bars arranged in two upper and lower stages. The upper rebar and the lower rebar are fixed to each of the edges of the X-shaped steel fitting, and one end of the X-shaped steel fitting is attached to the X-shaped center of the X-shaped steel fitting. The other end of the hanging metal fitting connected to the mold making form is connected, so that the three-dimensional structure composed of the upper reinforcing steel, the lower reinforcing steel, the X-shaped steel fitting and the steel formwork are suspended. It is a floor slab structure integrally fixed via metal fittings.
In a second aspect according to the present invention, the floor slab structure is manufactured at a place other than the bridge construction site, and the plurality of floor slab structures are mutually placed on the pier or abutment at the bridge construction site. After being erected and arranged adjacently, a space formed without the structure after inserting and binding force distribution bars intersecting at right angles to the arrangement direction of the upper reinforcing bar and the lower reinforcing bar at the site. It is a floor slab structure formed by injecting concrete into an area.
[0010]
Further, as a third aspect according to the present invention, a step of erection and mounting the floor slab structure according to any one of claims 1 to 3 on an abutment, a pier, or a beam; And a step of injecting concrete into the space area of the slab structure.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Since the floor slab structure and the floor slab construction method according to the present invention employ the above-described technical configuration, basically, the main structural body has a structure manufactured in a factory . Unlike conventional slab, becomes a possible to reduce the man-hours in the field, since the steel mold not only reduce the cost plays a degradation preventing effect of the concrete, the extension and Yunkurito fall accident life it is possible to prevent permanently.
[0012]
Further, since the work of transporting the floor slab and the work of construction can be easily performed, the construction period and construction cost can be significantly reduced .
[0013]
【Example】
Hereinafter, several specific examples of a floor slab structure, a floor slab, and a method of installing a floor slab according to the present invention will be described in detail with reference to the drawings .
That is, FIG. 1 is a perspective view showing a configuration of a concrete example of the floor slab structure 1 according to the present invention. In the figure, the floor slab structure 1 is erected above the external bridge girder 4.
[0014]
The configuration of the floor slab structure 1 shows that the upper reinforcing bar 6 and the lower reinforcing bar 7 are fixed by the X-shaped steel fitting 8 and the hanging fitting 7 inside the steel formwork 5 and after the erection. At the site, the force distributor 10 is shown inserted and tied.
[0015]
In the air space area 21 formed in the floor slab structure 1 according to the present invention, concrete is poured in a later step.
[0016]
In addition, the floor slab structure 1 according to the present invention, except for the distribution bars 10, is basically manufactured in a factory or outside the site.
[0017]
That Tori shown in Figure 2, deck structure 1 is factory fabrication, it is transported to more sites on the track or the like, Yuku been laid more orderly crane or the like.
[0018]
However, as a step before the slab structure 1 is erected , it is assumed that the girder 4 erected on the upper portions of the abutment 2 and the pier 3 has already been erected.
[0019]
Further, as shown in FIG. 2, after the floor deck structure 1 is laid and laid in a predetermined order , the force bars 10 shown in FIG. 1 are inserted thereinto and bound to the upper rebar 6 and the lower rebar 7 by iron wires.
Thereby, the aggregate on the compression side and the tension side, which is the main material of the reinforced concrete, is completed.
[0020]
And Tightened completes distribution force muscle 10, deck through curing period pouring concrete inside the person floor plate structure 1 is completed.
[0021]
A method for manufacturing the floor slab 1 according to the present invention will be described. 3, 4, 5, there is shown a portion of those floor plate structure 1. The upper reinforcing bar 6 and lower reinforcing bars 7 in Figure 4, the fitting member 11 made of formed steel studs or the like having for example a ring-like shape, Ru is fixed by press bonding.
[0022]
The reason for the press crimping, be provided by welding or the like for the upper reinforcing bar 6 and lower reinforcing bars 7 which is the main material of the slab to a high temperature heat than will provide a performance change to the reinforcing bar, without this It is fixed by press-compression.
[0023]
Further, Oite the present invention, the material of the steel fitting member 11 selects an cylindrical made of steel.
[0024]
Further Tori shown in Figure 3, by fixing by welding the X-type steel bracket 8 to the steel fitting member 11 fixed to the upper reinforcing bar 6 and lower reinforcing bars 7, the upper reinforcing bar 6 and lower reinforcing bars 7 and X-type The steel fitting 8 and the steel fitting member 11 form a strong integrated structure .
As shown in FIG. 5, the X-shaped steel fitting 8 used in the present invention is such that each of the four edge portions is individually welded to a predetermined portion of each reinforcing bar. It is desirable that the joining is performed by using an appropriate joining means such as a method, and more preferably, a predetermined portion of each rebar and each of the edge portions formed at four places of the X-shaped steel fitting 8. Each of them may be joined and fixed by a method such as welding via the steel fitting member 11 previously fitted and fixed to a predetermined portion of each rebar.
Further, in the present invention, the other end of the hanging metal fitting 9 whose one end is connected to the steel formwork 5 is connected to the X-shaped central part of the X-shaped steel fitting 8. Thereby, the three-dimensional structure including the upper reinforcing bar 6, the lower reinforcing bar 7, and the X-shaped steel fitting 8 and the steel formwork 5 are integrally fixed via the hanging fitting. Is desirable.
[0025]
Furthermore, X-type and a steel fitting 8 and the steel mold 5 more to welded and fixed via the Tsuzai 9, X-type steel steel fitting member 11 fixed to the upper reinforcing bar 6 and lower reinforcing bars 7 The metal fitting 8, the hanging material 9, and the steel formwork 5 are integrated , and the floor slab structure 1 is completed .
[0026]
It is desirable that each member of the floor slab structure 1 is made of steel .
[0027]
In the present invention, the most distinctive feature is the use of the X-shaped steel fitting 8 , for two reasons . The first is the flow of concrete when concrete is poured. and that sex is that produce uniform concrete is ensured, it is possible, as the second reason, the outer structure of the upper reinforcing bar 6 and lower reinforcing bars 7 and X-type steel fittings 8, most reasonable truss It has a structure that achieves rigidity higher than that of conventional reinforced concrete slabs.
[0028]
Further, in the floor slab structure 1 included in the present invention, it is also desirable to incorporate a PC steel rod in order to improve the tensile strength in the longitudinal direction of the main body of the bridge girder structure 4.
[0029]
In partially enlarged view of a specific example of the floor slab structure 1 according to the present invention is shown in FIG.
As can be understood from FIG. 6, the appropriate upper reinforcing bar 6 and lower reinforcing bar 7 are arranged on the spar 4 in a state of being temporarily fixed by appropriate means, for example, welding, welding or the like.
[0030]
Moreover, it is desirable that the concrete poured into the floor slab structure 1 according to the present invention be uniformly poured into the floor slab structure 1.
Further, it is desirable that the concrete poured into the floor slab structure 1 according to the present invention does not leak to the lower part.
[0031]
On the other hand, at least one end in the longitudinal direction of the main body of the floor slab structure 1 according to the present invention is provided with a fixing member for connecting and fixing the end of the main body of another floor slab structure 1. Is desirable.
The structure of the fixing member is not particularly limited, but a conventionally known connecting means can be used.
[0032]
Next, a method of constructing the floor slab according to the present invention will be described with reference to FIG.
First, in a factory or a construction site where the floor slab structure 1 is manufactured, a plurality of floor slab structures 1 are loaded on a truck or the like and carried into the site, and the floor slab structures 1 are sequentially ordered one by one by a crane or the like. Install it correctly.
[0033]
At the place where several floor slabs 1 are laid , force bars 10 are inserted, and the intersections of the upper reinforcing bar 6 and the lower reinforcing bar 7 are tied by a thin iron wire or the like.
[0034]
More to repeating the above work, laying of the floor slab is complete, be completed by Da設to the entire concrete to last.
[0035]
When the concrete is solidified, the concrete and the floor slab 1 are integrated to form a rigid structure, which has a large rigidity, and furthermore, a slab having a higher rigidity can be formed as compared with the conventional floor slab. The interval of digits 4 can be made longer, and the number of digits 4 can be reduced.
In addition, since the main body of the floor slab 1 constitutes the outer wall of the floor slab, there is no need to build or remove the concrete formwork.
[0036]
Further, the floor slab structure 1 can be constructed without providing any temporary material.
That is, as a method of constructing a floor slab in the present invention, basically, a step of laying the floor slab structure 1 having the above-described configuration on an abutment or a pier , and And a step of injecting concrete into the space region. In another embodiment, a plurality of the floor slab structures 1 are linearly arranged adjacent to each other in a predetermined direction, and A floor slab construction method comprising a step of connecting mutually adjacent ends of a plate structure to each other, and a step of mounting and mounting the connected floor slab structure on an abutment or a pier .
[0037]
Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the present invention is applicable even if there is a design change without departing from the gist of the present invention. include.
[0038]
【The invention's effect】
As described above, according to the present invention, the conventional floor slab is different from the construction method in which all the processes are manufactured on-site. since only to digest the only step to unity by inserting the distribution force muscle can concrete strokes設作industry, the construction period is able to complete the exact deck and can provide a reduction of early labor.
[0039]
Further, in terms of cost, since the work of transporting the floor slab and the work of construction can be easily performed, the construction cost can be significantly reduced. In addition, by using the steel fitting member 11 and the X-shaped steel fitting 8, the work efficiency in the factory can be improved, the factory manufacturing cost can be reduced, and the rigidity of the floor slab is positively affected.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a configuration of a specific example of a floor slab structure of the present invention.
FIG. 2 is a sectional view showing the configuration of another specific example of the floor slab structure of the present invention.
FIG. 3 is a partial sectional view showing a sectional structure of a concrete example of the floor slab structure of the present invention.
FIG. 4 is a partial cross-sectional view showing a cross-sectional structure in a specific example of the floor slab structure of the present invention.
FIG. 5 is a partial cross-sectional view showing a cross-sectional structure in a specific example of the floor slab structure of the present invention.
FIG. 6 is a cross-sectional view showing a cross-sectional structure in a specific example of the floor slab structure of the present invention.
FIG. 7 is a plan view showing a planar structure in a specific example of the floor slab structure of the present invention .
FIG . 8 is a cross-sectional view showing a cross-sectional structure in a specific example of a conventional floor slab structure.
FIG . 9 is a plan view showing a planar structure in a specific example of a conventional floor slab structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor slab structure 2 Abutment 3 Pier 4 Girder 5 Steel form 6 Upper reinforcing bar 7 Lower reinforcing bar
8 X-shaped steel bracket 9 Suspension member 10 Distributor
11 steel fitting member 21 floor slab structure space area 22 formwork veneer 23 PC floor slab

Claims (5)

  1. 鉄筋と鋼製型枠とで構成された床版構造体であって、当該床版は、当該鉄筋が上下2段に配置され、当該上段の鉄筋と当該下段の鉄筋はX型鋼製金具の各端縁部のそれぞれと固定されており、且つ当該X型鋼製金具のX字中心部に、その一端部が当該鋼製型枠と接続されている吊金具の他端部が接続されており、それによって当該上段鉄筋、当該下段鉄筋、当該X型鋼製金具からなる立体構成物と当該鋼製型枠とが吊金具を介して一体的に固定されていることを特徴とする床版構造体。A floor slab structure comprising a reinforcing bar and a steel formwork, wherein the floor slab is such that the reinforcing bar is disposed in two upper and lower stages, and the upper reinforcing bar and the lower reinforcing bar are formed of X-shaped steel fittings. The other end of the hanging fixture, which is fixed to each of the edge portions and is connected to the X-shaped center of the X-shaped steel fitting, one end of which is connected to the steel formwork. A floor slab in which the three-dimensional component comprising the upper rebar, the lower rebar, the X-shaped steel fitting and the steel formwork are integrally fixed via a suspension fitting. Structure.
  2. 当該立体構成物内に形成される空間領域内にコンクリートが注入されている事を特徴とする請求項1に記載の床版構造体The floor slab structure according to claim 1, wherein concrete is poured into a space region formed in the three-dimensional structure.
  3. 当該上段鉄筋若しくは当該下段鉄筋の一部に鋼製の嵌合部材を非溶接方式で固着配置せしめ、X型鋼製金具の各端縁部と当該嵌合部材とがそれぞれ溶接されて一体的に接合固着せしめられている事を特徴とする請求項1又は2に記載の床版構造体。A steel fitting member is fixedly disposed on a part of the upper rebar or the lower rebar by a non-welding method, and each edge of the X-shaped steel fitting and the fitting member are welded and integrally formed. The floor slab structure according to claim 1, wherein the slab is bonded and fixed.
  4. 当該床版構造体は、橋梁建設現場以外の場所で製作され、当該橋梁建設現場で当該複数個の床版構造体が橋脚或いは橋台上に相互に隣接する様に架設配置された後、当該上段鉄筋及び当該下段鉄筋の配列方向とは直角の方向に交わる配力筋を現場で挿入し結束せしめた後に、当該立体構造物内に形成されている空間領域内にコンクリートが注入されて形成されている事を特徴とする請求項1ないし3に記載の床版構造体。The floor slab structure is manufactured at a place other than the bridge construction site, and after the plurality of floor slab structures are erected at the bridge construction site so as to be adjacent to each other on a pier or an abutment, After inserting and binding the reinforcing bars and the reinforcing bars crossing in a direction perpendicular to the direction in which the lower reinforcing bars are arranged at the site, concrete is injected into the space region formed in the three-dimensional structure and formed. The slab structure according to any one of claims 1 to 3, wherein
  5. 上記した請求項1乃至3の何れかに記載された当該床版構造体を橋台上又は橋脚上又は梁上に架設搭載させる工程と、当該床版構造体の該空間領域内にコンクリートを注入する工程とから構成されている事を特徴とする床版構造体の施工方法。A step of mounting and mounting the floor slab structure according to any one of claims 1 to 3 on an abutment, a pier, or a beam, and injecting concrete into the space region of the floor slab structure. And a method for constructing a floor slab structure.
JP2000233722A 2000-06-27 2000-06-27 Floor slab structure and construction method of floor slab Expired - Fee Related JP3579333B2 (en)

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KR101795725B1 (en) * 2015-12-22 2017-11-09 (주)오메가코스틸 Integral deck for continuous support type slab
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