JP3830638B2 - Fixing structure between deck plate and rebar truss - Google Patents

Fixing structure between deck plate and rebar truss Download PDF

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Publication number
JP3830638B2
JP3830638B2 JP29224197A JP29224197A JP3830638B2 JP 3830638 B2 JP3830638 B2 JP 3830638B2 JP 29224197 A JP29224197 A JP 29224197A JP 29224197 A JP29224197 A JP 29224197A JP 3830638 B2 JP3830638 B2 JP 3830638B2
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Japan
Prior art keywords
deck plate
reinforcing bar
spacer
bar truss
fixing structure
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Expired - Lifetime
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JP29224197A
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JPH11131666A (en
Inventor
晶利 原田
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JFE Metal Products and Engineering Inc
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JFE Metal Products and Engineering Inc
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Priority to JP29224197A priority Critical patent/JP3830638B2/en
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Description

【０００１】
【発明の属する技術分野】
この発明は、デッキプレートと鉄筋トラスとの固定構造、特に、高さが高い鉄筋トラスをデッキプレートに固定する場合においても、脚部材の脚長が長いスペーサーを使用する必要がない、デッキプレートと鉄筋トラスとの固定構造に関するものである。
【０００２】
【従来の技術】
従来、デッキプレートと鉄筋トラスとの固定構造として、特開平７−１３９０７０号公開公報に開示されるものがある。この従来固定構造を図面を参照しながら説明する。
【０００３】
図３は、従来固定構造に使用されるスペーサーを示す斜視図、図４は、デッキプレートに嵌め込まれたスペーサーを示す正面図、図５は、従来固定構造を示す側面図、図６は、従来固定構造を示す平面図、図７は、スペーサーのデッキプレートへの嵌込み方法を示す平面図、図８は、脚長が長いスペーサーによる従来固定構造を示す正面図である。
【０００４】
図３から図８において、１は、スペーサーである。スペーサー１は、デッキプレート５の対向するウェブ５Ａの各々に平行且つ水平に形成された一対の溝５Ｂ内に先端部２Ａが嵌め込まれる正面形状ハの字状の棒鋼製脚部材２と、脚部材２の頂部に固定された固定板３と、固定板３上に回転自在に取り付けられた回転板４とからなっている。なお、脚部材２の頂部に直接、回転板４を取り付けても良い。
【０００５】
６は、デッキプレート５の断面剛性を高めるための鉄筋トラスである。鉄筋トラス６は、上部筋６Ａと下部筋６Ｂとラチス筋６Ｃとからなっている。図５及び図６に示す鉄筋トラス６は、上下１本づつの上部筋６Ａと下部筋６Ｂとの間にラチス筋６Ｃを固定したものからなっている。
【０００６】
デッキプレート５にスペーサー１を介して鉄筋トラス６を設置固定するには、鉄筋トラス６の上部筋６Ａの下部にスペーサー１の回転板４を溶接等によって予め固定しておく。このようにして、所定間隔をあけて複数個のスペーサー１を鉄筋トラス６に固定したら、鉄筋トラス６をデッキプレート５の下部フランジ５Ｃに搬送し、各スペーサー１の脚部材２を図７に示すように回転させて、脚部材２の先端部２Ａをデッキプレート５の溝５Ｂ内に脚部材２の弾性力に抗して嵌め込む。デッキプレート５の溝５Ｂ内に嵌め込まれたスペーサー１は、スペーサー１及びデッキプレート５双方の弾性力によって、デッキプレート５から抜け出ることはない。
【０００７】
このようにして、デッキプレート５の下部フランジ５Ｃに沿ってスペーサー１を介して鉄筋トラス６を設置固定したら、デッキプレート５上にコンクリートを打設する。これによって、合成床スラブが構築される。
【０００８】
【発明が解決しようとする課題】
しかしながら、上述した従来固定構造は、次のような問題点を有していた。即ち、打設コンクリート厚を厚くして、剛性が高い合成スラブを構築する場合、図８に示すように、鉄筋トラス６も高さ（Ｔ）が高く、二重構造で強固な構造のものを使用する必要がある。この鉄筋トラス６は、一本の上部筋６Ａと二本の下部筋５Ｂとの間に一対のラチス筋６Ｃを固定したものからなっている。
【０００９】
この場合、従来固定構造のように、鉄筋トラス６の上部筋６Ａの下部にスペーサー１の回転板４を固定して、鉄筋トラス６にスペーサー１を取り付けると、スペーサー１として、脚長が長い脚部材２を使用する必要がある。しかしながら、脚部材２の脚長が長くなると、スペーサー１の耐力が低下して、鉄筋トラス６を確実にデッキプレート５の下部フランジ５Ｃに沿って固定することができない恐れがあった。
【００１０】
従って、この発明の目的は、高さが高い鉄筋トラスをデッキプレートに固定する場合において、脚部材の脚長が長いスペーサーを使用する必要がない、デッキプレートと鉄筋トラスとの固定構造を提供することにある。
【００１１】
【課題を解決するための手段】
請求項１記載の発明は、デッキプレートの断面剛性を高めるための、上部筋と下部筋とラチス筋とからなる鉄筋トラスを、前記デッキプレートの下部フランジの上方に前記下部フランジに沿ってスペーサーを介して垂直に固定するための、デッキプレートと鉄筋トラスとの固定構造において、前記スペーサーは、前記デッキプレートの対向するウェブの各々に平行且つ水平に形成された一対の溝内に先端部が嵌め込まれる正面形状ハの字状の脚部材と、前記脚部材の頂部に水平回転自在に取り付けられた回転板とからなり、前記回転板は、前記鉄筋トラスの前記ラチス筋に固定されていることに特徴を有するものである。
【００１２】
【発明の実施の形態】
次に、この発明の、デッキプレートと鉄筋トラスとの固定構造の一実施態様を、図面を参照しながら説明する。
【００１３】
図１は、この発明の、デッキプレートと鉄筋トラスとの固定構造を示す正面図、図２は、この発明の、デッキプレートと鉄筋トラスとの固定構造を示す側面図である。
【００１４】
図１及び図２における番号は、図３から図８の番号と同一物を示す。即ち、１は、棒鋼製脚部材２、脚部材２の頂部に固定された固定板３、及び、固定板３上に回転自在に取り付けられた回転板４とからなるスペーサーである。６は、一本の上部筋６Ａと二本の下部筋５Ｂとの間に一対のラチス筋６Ｃを固定したものからなる鉄筋トラスであり、回転板４は、鉄筋トラス６のラチス筋６Ｃの途中に溶接等によって固定されている。
【００１５】
このように、回転板４を鉄筋トラス６のラチス筋６Ｃに溶接等によって固定することによって、従来構造のように、回転板４を鉄筋トラス６の上部筋６Ａに固定する場合に比べて、スペーサー１として、脚長が長い脚部材２を使用する必要がなくなる。即ち、鉄筋トラス６の高さが高くなった場合、従来固定構造によれば、図１中２点鎖線で示すように、脚部材２の脚長が長いスペーサー１を使用する必要があったが、この発明の固定構造によれば、脚部材２の脚長が短いスペーサー１を使用することができる。従って、スペーサー１の耐力が低下する恐れがなく、鉄筋トラス６をスペーサー１を介して確実にデッキプレート５の下部フランジ５Ｃに沿って固定することができる。
【００１６】
鉄筋トラス６のデッキプレート５への取り付け方法は、次の通りである。即ち、鉄筋トラス６のラチス筋６Ｃの途中にスペーサー１の回転板４を溶接等によって予め固定しておく。このようにして、所定間隔をあけて複数個のスペーサー１を鉄筋トラス６に固定したら、鉄筋トラス６をデッキプレート５の下部フランジ５Ｃに搬送し、各スペーサー１の脚部材２を図７に示すように回転させて、脚部材２の先端部２Ａをデッキプレート５の溝５Ｂ内に脚部材２の弾性力に抗して嵌め込む。デッキプレート５の溝５Ｂ内に嵌め込まれたスペーサー１は、スペーサー１及びデッキプレート５双方の弾性力によって、デッキプレート５から抜け出ることはない。
【００１７】
このようにして、デッキプレート５の下部フランジ５Ｃに沿ってスペーサー１を介して鉄筋トラス６を固定したら、デッキプレート５上にコンクリートを打設する。これによって、合成床スラブが構築される。
【００１８】
【発明の効果】
以上説明したように、この発明によれば、スペーサーの回転板を鉄筋トラスのラチス筋に固定することによって、高さが高い鉄筋トラスをデッキプレートに固定する場合においても、脚部材の脚長が短く、耐力の低下がないスペーサーを使用することができる。従って、高さが高い鉄筋トラスをデッキプレートに固定する場合においても、鉄筋トラスをスペーサーを介して確実にデッキプレートの下部フランジに沿って固定することができるといった有用な効果がもたらされる。
【図面の簡単な説明】
【図１】この発明の、デッキプレートと鉄筋トラスとの固定構造を示す正面図である。
【図２】この発明の、デッキプレートと鉄筋トラスとの固定構造を示す側面図である。
【図３】従来固定構造に使用されるスペーサーを示す斜視図である。
【図４】デッキプレートに嵌め込まれたスペーサーを示す正面図である。
【図５】従来固定構造を示す側面図である。
【図６】従来固定構造を示す平面図である。
【図７】スペーサーのデッキプレートへの嵌込み方法を示す平面図である。
【図８】脚長が長いスペーサーによる従来固定構造を示す正面図である。
【符号の説明】
１：スペーサー
２：脚部材
２Ａ：先端部
３：固定板
４：回転板
５：デッキプレート
５Ａ：ウェブ
５Ｂ：溝
５Ｃ：下部フランジ
６：鉄筋トラス
６Ａ：上部筋
６Ｂ：下部筋
６Ｃ：ラチス筋[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fixing structure between a deck plate and a reinforcing bar truss, and in particular, even when a high-strength reinforcing bar truss is fixed to the deck plate, there is no need to use a spacer having a long leg length for the leg member. It relates to the structure for fixing to the truss.
[0002]
[Prior art]
Conventionally, as a fixing structure between a deck plate and a reinforcing bar truss, there is one disclosed in JP-A-7-139070. This conventional fixing structure will be described with reference to the drawings.
[0003]
3 is a perspective view showing a spacer used in the conventional fixing structure, FIG. 4 is a front view showing the spacer fitted in the deck plate, FIG. 5 is a side view showing the conventional fixing structure, and FIG. FIG. 7 is a plan view showing a fixing structure, FIG. 7 is a plan view showing a method for fitting a spacer into a deck plate, and FIG. 8 is a front view showing a conventional fixing structure with a spacer having a long leg length.
[0004]
3 to 8, 1 is a spacer. The spacer 1 includes a front-shaped C-shaped bar steel leg member 2 in which a front end portion 2A is fitted in a pair of grooves 5B formed in parallel and horizontally with each of the opposing webs 5A of the deck plate 5, and a leg member. 2 includes a fixed plate 3 fixed to the top of 2 and a rotary plate 4 rotatably mounted on the fixed plate 3. The rotating plate 4 may be attached directly to the top of the leg member 2.
[0005]
Reference numeral 6 denotes a reinforcing bar truss for increasing the cross-sectional rigidity of the deck plate 5. The reinforcing bar truss 6 is composed of an upper muscle 6A, a lower muscle 6B, and a lattice muscle 6C. Reinforcing bar truss 6 shown in FIGS. 5 and 6 is composed of latticed muscle 6C fixed between upper and lower muscles 6A and 6B one by one.
[0006]
In order to install and fix the reinforcing bar truss 6 to the deck plate 5 via the spacer 1, the rotating plate 4 of the spacer 1 is fixed in advance to the lower part of the upper reinforcing bar 6 </ b> A of the reinforcing bar truss 6 by welding or the like. When the plurality of spacers 1 are fixed to the reinforcing bar truss 6 at predetermined intervals in this way, the reinforcing bar truss 6 is transported to the lower flange 5C of the deck plate 5, and the leg members 2 of the spacers 1 are shown in FIG. In this manner, the tip 2A of the leg member 2 is fitted into the groove 5B of the deck plate 5 against the elastic force of the leg member 2. The spacer 1 fitted in the groove 5 </ b> B of the deck plate 5 does not come out of the deck plate 5 due to the elastic force of both the spacer 1 and the deck plate 5.
[0007]
In this way, when the reinforcing truss 6 is installed and fixed via the spacer 1 along the lower flange 5 </ b> C of the deck plate 5, concrete is placed on the deck plate 5. Thereby, a synthetic floor slab is constructed.
[0008]
[Problems to be solved by the invention]
However, the conventional fixing structure described above has the following problems. That is, when constructing a synthetic slab having a high rigidity by increasing the thickness of the cast concrete, as shown in FIG. 8, the reinforcing bar truss 6 is also high in height (T) and has a double structure and a strong structure. Need to use. The reinforcing bar truss 6 is formed by fixing a pair of lattice muscles 6C between one upper muscle 6A and two lower muscles 5B.
[0009]
In this case, like the conventional fixing structure, when the rotating plate 4 of the spacer 1 is fixed to the lower part of the upper bar 6A of the reinforcing bar truss 6 and the spacer 1 is attached to the reinforcing bar truss 6, the leg member having a long leg length is used as the spacer 1. 2 must be used. However, if the leg length of the leg member 2 is increased, the proof strength of the spacer 1 is reduced, and the rebar truss 6 may not be reliably fixed along the lower flange 5C of the deck plate 5.
[0010]
Accordingly, an object of the present invention is to provide a fixing structure between a deck plate and a reinforcing bar truss that does not require the use of a spacer having a long leg length when fixing a reinforcing bar truss having a high height to the deck plate. It is in.
[0011]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a reinforcing bar truss composed of an upper bar, a lower bar and a lattice bar for increasing the cross-sectional rigidity of the deck plate, and a spacer along the lower flange above the lower flange of the deck plate. In the fixing structure of the deck plate and the reinforcing bar truss for fixing vertically through the spacer, the spacer is inserted into a pair of grooves formed in parallel and horizontally on the opposing webs of the deck plate. A front-shaped C-shaped leg member and a rotating plate attached to the top of the leg member so as to be horizontally rotatable, the rotating plate being fixed to the lattice bar of the reinforcing bar truss It has characteristics.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the structure for fixing the deck plate and the reinforcing bar truss according to the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a front view showing a fixing structure between a deck plate and a reinforcing bar truss according to the present invention, and FIG. 2 is a side view showing a fixing structure between the deck plate and the reinforcing bar truss according to the present invention.
[0014]
The numbers in FIGS. 1 and 2 are the same as the numbers in FIGS. That is, reference numeral 1 denotes a spacer comprising a steel bar leg member 2, a fixed plate 3 fixed to the top of the leg member 2, and a rotary plate 4 rotatably mounted on the fixed plate 3. 6 is a reinforcing bar truss comprising a pair of lattice muscles 6C fixed between one upper muscle 6A and two lower muscles 5B, and the rotating plate 4 is in the middle of the lattice muscle 6C of the reinforcing bar truss 6. It is fixed by welding or the like.
[0015]
Thus, by fixing the rotating plate 4 to the lattice bar 6C of the reinforcing bar truss 6 by welding or the like, compared to the case of fixing the rotating plate 4 to the upper bar 6A of the reinforcing bar truss 6 as in the conventional structure, the spacer As a result, it is not necessary to use the leg member 2 having a long leg length. That is, when the height of the reinforcing bar truss 6 is increased, according to the conventional fixing structure, it is necessary to use the spacer 1 having a long leg length of the leg member 2 as shown by a two-dot chain line in FIG. According to the fixing structure of the present invention, the spacer 1 having a short leg length of the leg member 2 can be used. Therefore, there is no fear that the proof stress of the spacer 1 is reduced, and the reinforcing bar truss 6 can be reliably fixed along the lower flange 5C of the deck plate 5 via the spacer 1.
[0016]
A method for attaching the reinforcing bar truss 6 to the deck plate 5 is as follows. That is, the rotating plate 4 of the spacer 1 is fixed in advance in the middle of the lattice 6C of the reinforcing bar truss 6 by welding or the like. When the plurality of spacers 1 are fixed to the reinforcing bar truss 6 at predetermined intervals in this way, the reinforcing bar truss 6 is transported to the lower flange 5C of the deck plate 5, and the leg members 2 of the spacers 1 are shown in FIG. In this manner, the tip 2A of the leg member 2 is fitted into the groove 5B of the deck plate 5 against the elastic force of the leg member 2. The spacer 1 fitted in the groove 5 </ b> B of the deck plate 5 does not come out of the deck plate 5 due to the elastic force of both the spacer 1 and the deck plate 5.
[0017]
When the reinforcing truss 6 is fixed via the spacer 1 along the lower flange 5C of the deck plate 5 in this way, concrete is placed on the deck plate 5. Thereby, a synthetic floor slab is constructed.
[0018]
【The invention's effect】
As described above, according to the present invention, by fixing the rotating plate of the spacer to the lattice bar of the reinforcing bar truss, the leg length of the leg member is shortened even when fixing the high reinforcing bar truss to the deck plate. A spacer having no decrease in yield strength can be used. Therefore, even when a reinforcing bar truss having a high height is fixed to the deck plate, there is a useful effect that the reinforcing bar truss can be reliably fixed along the lower flange of the deck plate via the spacer.
[Brief description of the drawings]
FIG. 1 is a front view showing a fixing structure between a deck plate and a reinforcing bar truss according to the present invention.
FIG. 2 is a side view showing a fixing structure between a deck plate and a reinforcing bar truss according to the present invention.
FIG. 3 is a perspective view showing a spacer used in a conventional fixing structure.
FIG. 4 is a front view showing a spacer fitted in a deck plate.
FIG. 5 is a side view showing a conventional fixing structure.
FIG. 6 is a plan view showing a conventional fixing structure.
FIG. 7 is a plan view showing a method for fitting the spacer into the deck plate.
FIG. 8 is a front view showing a conventional fixing structure with a spacer having a long leg length.
[Explanation of symbols]
1: Spacer 2: Leg member 2A: Tip part 3: Fixed plate 4: Rotating plate 5: Deck plate 5A: Web 5B: Groove 5C: Lower flange 6: Rebar truss 6A: Upper bar 6B: Lower bar 6C: Lattice bar

Claims (1)

デッキプレートの断面剛性を高めるための、上部筋と下部筋とラチス筋とからなる鉄筋トラスを、前記デッキプレートの下部フランジの上方に前記下部フランジに沿ってスペーサーを介して垂直に固定するための、デッキプレートと鉄筋トラスとの固定構造において、
前記スペーサーは、前記デッキプレートの対向するウェブの各々に平行且つ水平に形成された一対の溝内に先端部が嵌め込まれる正面形状ハの字状の脚部材と、前記脚部材の頂部に水平回転自在に取り付けられた回転板とからなり、前記回転板は、前記鉄筋トラスの前記ラチス筋に固定されていることを特徴とする、デッキプレートと鉄筋トラスとの固定構造。In order to increase the cross-sectional rigidity of the deck plate, a reinforcing bar truss composed of upper, lower and lattice bars is vertically fixed above the lower flange of the deck plate along the lower flange via a spacer. In the fixing structure of the deck plate and the reinforcing bar truss,
The spacer has a front-shaped C-shaped leg member whose front end is fitted in a pair of grooves formed in parallel and horizontally to each of the opposing webs of the deck plate, and a horizontal rotation on the top of the leg member. A structure for fixing a deck plate and a reinforcing bar truss, characterized in that the rotating plate is freely attached, and the rotating plate is fixed to the lattice bar of the reinforcing bar truss.
JP29224197A 1997-10-24 1997-10-24 Fixing structure between deck plate and rebar truss Expired - Lifetime JP3830638B2 (en)

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Publication Number Publication Date
JPH11131666A JPH11131666A (en) 1999-05-18
JP3830638B2 true JP3830638B2 (en) 2006-10-04

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JP3200266B2 (en) * 1993-11-15 2001-08-20 日本鋼管ライトスチール株式会社 Deck plate beam fixing bracket
JP3555903B2 (en) * 1994-08-25 2004-08-18 Ｊｆｅ建材株式会社 Bar bending machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101783035B1 (en) * 2016-03-10 2017-10-10 (주)엔아이스틸 Corrugated Deck Having Inverted Triangle Truss Girder

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