Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP4048007B2 - Joint structure of composite floor slab - Google Patents
[go: Go Back, main page]

JP4048007B2 - Joint structure of composite floor slab - Google Patents

Joint structure of composite floor slab Download PDF

Info

Publication number
JP4048007B2
JP4048007B2 JP25865899A JP25865899A JP4048007B2 JP 4048007 B2 JP4048007 B2 JP 4048007B2 JP 25865899 A JP25865899 A JP 25865899A JP 25865899 A JP25865899 A JP 25865899A JP 4048007 B2 JP4048007 B2 JP 4048007B2
Authority
JP
Japan
Prior art keywords
steel
joint
concrete
section
bottom plate
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.)
Expired - Fee Related
Application number
JP25865899A
Other languages
Japanese (ja)
Other versions
JP2001081724A (en
Inventor
忠彦 森
和巳 松岡
康盛 藤井
豊 坂田
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.)
Nippon Steel Corp
Nippon Steel Engineering Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Engineering 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 Nippon Steel Corp, Nippon Steel Engineering Co Ltd filed Critical Nippon Steel Corp
Priority to JP25865899A priority Critical patent/JP4048007B2/en
Publication of JP2001081724A publication Critical patent/JP2001081724A/en
Application granted granted Critical
Publication of JP4048007B2 publication Critical patent/JP4048007B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Bridges Or Land Bridges (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、橋梁に適用する鋼−コンクリート合成床版の継手部構造に関するものである。
【0002】
【従来の技術】
鋼−コンクリート合成床版のパネル間継手構造の従来技術は各種提案されているが、その一例として特開平9−242237号公報に開示の合成床版の継手部およびその施工法がある。
【0003】
この特開平9−242237号に開示の技術は、図10,図11に示すように鋼製床版2の上にコンクリート3が充填されてなる合成床版1,1において、各合成床版1,1の端部から継手部底板2a,2aを突出させ、各継手部底板2a,2aから突出したずれ止め4,4同士を鉄筋5で取り囲み、対向する2つの継手部形鋼6,6間において、前記ずれ止め4が埋設されるよう継手部コンクリート7を打設し、上側鋼板8同士を連結鋼板9の溶接を介して接合し、この連結鋼板9により継手コンクリート7の上部を覆っている。10は突き合わせ部である。
【0004】
前記特開平9−242237号では、床版上側が鋼板に覆われていることを前提としているため、継手部下側の負担は軽減される。そのため、この構造では、継手部が負担する作用がそれほど大きくない場合には有効であるが、継手部に比較的大きな力が作用する場合には、この合成床版の継手部構造は有効でない。
【0005】
【発明が解決しようとする課題】
従来の合成床版の継手部構造では、継手部に曲げ力,せん断力,ねじれ力等の比較的大きな力が作用するとき、これらの継手部を破壊する力に十分抵抗できない構造であった。
【0006】
本発明は、前記の問題点を解決した合成床版の継手部構造を提供することを目的とする。
【0007】
【課題を解決するための手段】
前記の目的を達成するため、本発明に係る合成床版の継手部構造は次のように構成する。
第1の発明は、鋼製底板と、この鋼製底板上に配設される形鋼および鉄筋とをコンクリートで一体化して構成される合成床版において、隣接する前記鋼製底板同士を結合するための継手部構造であって、継手部において隣接位置する継手部形鋼を、ウエブ同士が背中合わせとなる配置に設けた溝形鋼で構成し、各ウエブを貫通するように当該溝形鋼のウエブに結合治具と鋼管を設置し、溝形鋼の上側には、当該溝形鋼の長手方向に対して直角方向に鉄筋を配置したうえでコンクリートを充填した構成を特徴とする。
第2の発明は、鋼製底板と、この鋼製底板上に配設される形鋼および鉄筋とをコンクリートで一体化して構成される合成床版において、隣接する前記鋼製底板同士を結合するための継手部構造であって、隣接位置する前記各継手部形鋼を溝形鋼,H形鋼またはI形鋼で構成し、隣接する継手部鋼材によって形成される継手部閉鎖空間に形鋼あるいは角鋼管からなる継手部補強鋼材を設置し、前記継手部鋼材と継手部補強鋼材を貫通するボルトによって、両継手部鋼材を結合し、継手部鋼材の上側には、その長手方向に対して直角方向に鉄筋を配置したうえで、コンクリートを充填したことを特徴とする。
【0008】
【作用】
本発明では、鋼−コンクリート合成床版における隣接する鋼製底板の継手部に、手部形鋼を長手方向に沿って配設したことで、継手部に作用する曲げモーメントの大部分を、前記継手部形鋼並びに第1の発明または第2に発明に記載した剛性強化手段で負担し、形鋼の長手方向に対する直角方向には曲げモーメントの負担を軽減し、せん断力のみ伝達することがポイントである。それによって、比較的大きな力が作用する合成床版の継手部としても有効に機能する。また、床版上部は従来のように上部鋼板で覆われておらず、開放されているので、コンクリート打設前に上からの作業だけで継手の構築が可能なので、施工性にも優れる利点がある。
【0009】
【発明の実施の形態】
以下、本発明の実施形態を図を参照して説明する。図1〜図3は参考形態1を示。この実施形態1において、合成床版11における隣接する鋼製底板12,12の対向端部13が若干の間隙14を介して近接して配置され、各鋼製底板12,12の対向端部13に跨がって、かつ間隙14を閉塞するように連結鋼板15が配設され、ボルト,ナットを介して両部材間が結合されている。つまり、連結鋼板15と対向端部13の間は簡易な結合装置によって結合してあり、図示例においては、各鋼製底板12,12の端部上面にねじ付きスタッドピン16を立設し、このスタッドピン16に連結鋼板15の両側部に開設したピン孔17を嵌合したうえ、ナット18をスタッドピン16のねじ部に螺合することで、各鋼製底板12と連結鋼板15が連結され、かつ間隙14が閉塞される。
【0010】
前記連設される各鋼製底板12,12は連結前にあっては、互いに分離していてそれぞれ1単位の鋼製パネルをなし、各鋼製底板12の上側にコンクリート19を打設することで連続した合成床版11が構築される。
【0011】
各1単位の鋼製パネルの主要素である各鋼製底板12の上面には所定の間隔をおいて、H形鋼,I形鋼等の形鋼(図ではH形鋼を示す)20,20aが複数平行に配設され、その下フランジ21を鋼製底板12の上面に当てがい、フランジ両側縁を連結すみ肉溶接または断続すみ肉溶接9により、鋼製底板12に固着してある。以下では、鋼製底板12の対向端部13に設けるH形鋼を継手部H形鋼20という。
【0012】
各継手部H形鋼20のウエブ22には図示のように、開口部23が所定の間隔をあけて開設してある。また、各鋼製底板12,12の上部には、それぞれ鉄筋24を当該鋼製底板12の長手方向に対して直角方向に配設し、前記鉄筋24の端部にループ状部25を設ける。このループ状部25は、前記隣接する鋼製底板12,12における対向端部13に位置する継手部H形鋼20,20の間隔部である継手部空間26に位置させたうえ、ループ状部25から伸長する先端部折返し鉄筋27を、前記継手部H形鋼20のウエブ22に開設される開口部23に挿入してある。
【0013】
前記継手部空間26において、隣接する左右の各鋼製底板12の上部に伸長する左右の各鉄筋24a,24bにおける各ループ状部25a,25bは、継手部H形鋼20の長手方向に1つおきに交互に配設される。そして、ループ状部25を基準にして鉄筋24を見たとき、当該継手部H形鋼20の長手方向に所定間隔で配設されるループ状部25a,25bからは、それぞれ1つおきに右側と左側の各鋼製底板12,12の上部に沿って伸長することになる。図示例では、ループ状部25a,25bが設けられない側から伸長する他方の鉄筋24の端部25c,25dはストレート状態で切断されている。
【0014】
また、隣接する継手部H形鋼20,20の間隔寸法L1 は、他の部位におけるH形鋼20a,20aの間隔寸法Lよりも小に設ける。つまり、継手部におけるH形鋼20の配置を他の部位におけるH形鋼20aの間隔よりも密に設けてあり、それにより継手部空間26における継手部H形鋼20,20の長手方向の剛性を向上している。
【0015】
前述のようにして、予め工場にてH形鋼20aと、継手部H形鋼20が鋼製底板12に溶接されてなる鋼製床パネル単体を構成し、これを現場に搬送したうえ、この鋼製床パネル単体における前記鋼製底板12を現場施工して連結鋼板15を介して簡易結合装置により結合する。さらに、各継手部H形鋼20の上部にループ状部25付き鉄筋24を配筋したうえ、そのループ状部25を継手部空間26に配置する。さらに、継手部H形鋼20とループ部付き鉄筋24等が埋設されるようコンクリート19を鋼製底板12の上面に所定厚で打設することにより、鋼−コンクリート合成床版11が構築される。
【0016】
参考形態1に係る鋼−コンクリート合成床版11にあっては、隣接する鋼製底板12,12の間の継手部空間26において、前述のとおり、隣接する継手部H形鋼20,20の間隔寸法L1は、他の部位におけるH形鋼20a,20aの間隔寸法Lよりも小に設けてあり、それにより継手部空間26における継手部H形鋼20,20の長手方向の剛性を向上している。
【0017】
さらに、鉄筋24と一体のループ状部25が継手部H形鋼20の長手方向に沿って所定間隔で複数存在するので、このループ状部25の存在により継手部の長手方向の剛性が高まり、相対的に継手部H形鋼20の長手方向に対して直角方向の作用力が緩和できる。
【0018】
つまり参考形態1において、隣接する鋼製底板12,12同士の継手部においては、継手部H形鋼20の長手方向に加わる曲げモーメントの大部分は、当該継手部H形鋼20,20によって負担し、継手部H形鋼20の長手方向に対して直角の方向の曲げモーメントの一部に対しては、簡易的なふさぎ板兼用の連結鋼板15で抵抗する。また、継手部に作用するせん断力に対しては、継手部H形鋼20間の継手部空間26に形成されるループ状部25とコンクリートの一体化で抵抗するものである。
【0019】
図4,図5は実施形態1を示し、これは請求項1に対応する実施形態である。この実施形態1において、鋼製底板12,12の対向端部13が隙間なく突き合わされていること、および、両鋼製底板12,12の対向端部13に配設される形鋼が溝形鋼29であること、また、両溝形鋼29同士の連結手段が異なること、鉄筋24の端部がストレートであることが実施形態1と相異し、他の構成は参考形態1と同じである
【0020】
実施形態1について、参考形態1と相異する点を中心に説明すると、両溝形鋼29,29は各ウエブ30の背面側が対向するように配設されて、それぞれの下フランジ21が鋼製底板12の上面に連続すみ肉溶接または断続すみ肉溶接9により固着されている。
【0021】
図4、図5に示すように、両溝形鋼29,29は、両鋼製底板12の対向端部13同士を突き合わせたとき、両ウエブ30間に若干の間隙が形成され、この間隙を介して両ウエブ30を貫通してボルト等の結合治具32を設け、当該結合治具32のねじ部にナットを螺合し、両ウエブ30の離間を阻止したうえ、コンクリート19を打設する。
【0022】
さらに、両継手部溝形鋼29のウエブ30には、その長手方向に所定間隔で複数個の開口部33が開設されていて、両ウエブ30の各開口部33は合致して設けられており、両開口部33に、これの内径に近い外径で、かつ所定の長さ寸法の鋼管34が挿入されている。
【0023】
実施形態1において、予め工場において、鋼製底板12にH形鋼20aと継手部溝形鋼29が溶接されてなる鋼製パネル単体が製作され、この鋼製パネル単体が現場に搬送され、現場施工にて結合治具32により両継手部溝形鋼29を結合することで両鋼製底板12を結合する。つぎに、前記継手部溝形鋼29のウエブ30の開口部33に鋼管34を挿入保持させたうえ、各継手部溝形鋼29と鉄筋24と鋼管34が埋設されるようにコンクリート28を鋼製底板12の上に所定厚で打設することにより、鋼−コンクリート合成(複合)床版11が構築される。
【0024】
実施形態2に係る鋼−コンクリート合成床版11にあっては、隣接する鋼製底板12,12間の継手部において、両継手部溝形鋼29の両ウエブ30の開口部33に挿入された棒状鋼材34内にもコンクリート19が充填されており、この棒状鋼材34が両継手部溝形鋼29の長手方向に所定間隔で複数存在することで、継手部が棒状鋼材34と結合治具32とにより補強される。
【0025】
すなわち、継手部に作用する曲げモーメントの大部分は、ウエブ30が重なり合うように(つまり、他のH形鋼20aよりも密に)配設された両継手部溝形鋼29で負担し、継手部溝形鋼29の長手方向に対して直角方向の曲げモーメントの一部は、ウエブ30の下部を貫通する結合治具32で抵抗する。また、継手部に作用するせん断力に対しては、両継手部溝形鋼29の両ウエブ30を貫通する鋼管34で抵抗する。
【0026】
図6,図7は実施形態2を示し、これは請求項2に対応する実施形態である。この実施形態3において、鋼製底板12の上面にH形鋼20aと継手部H形鋼20が所定間隔で平行に配設され、下フランジ21が連続すみ肉溶接または断続すみ肉溶接9により固着されている。これらの構成は実施形態1と同じである。
【0027】
実施形態2では、前記の構成に加えて、継手部において両継手部H形鋼20の間に形成される継手部閉鎖空間26aに、両継手部H形鋼20の長手方向に沿って、H形鋼,I形鋼,溝形鋼等の形鋼または、角鋼管配設されるもので、図ではその1例として、継手部補強用H形鋼36が配設された例が示されている。この継手部補強用H形鋼36は、その幅と高さともに、継手部閉鎖空間26aに納まる寸法に設けられている。この継手部補強用H形鋼36のウエブ37には、ボルトなどの結合治具32の挿通孔38が開設されている。
【0028】
そして、各鋼製底板12の両継手部H形鋼20のウエブ22と、継手部補強用H形鋼36のウエブ37の下部を貫通してボルト等の結合治具32を設け、当該治具32のねじ部にナット35を螺合し、継手部H形鋼20の両ウエブ22の離間を阻止したうえ、コンクリート19を打設することで、両鋼製底板12の継手部を構成する。
【0029】
実施形態2において、予め工場において、鋼製底板12にH形鋼20aと継手部H形鋼20が溶接されてなる鋼製床パネル単体が製作され、この鋼製床パネル単体が現場に搬送され、現場施工にて結合治具32により両継手部H形鋼20を結合することで、両鋼製底板12を結合する。また、継手部閉鎖空間26aに継手部補強用H形鋼36を配設したうえ、各継手部H形鋼20と継手部補強用H形鋼36と鉄筋24とが埋設されるように、コンクリート19を鋼製底板12の上面に所定厚で打設することにより、鋼−コンクリート合成床版11が構築される。
【0030】
実施形態3に係る鋼−コンクリート合成床版11にあっては、隣接する鋼製底板12の継手部において、両継手部H形鋼20の間が結合治具32で連結され、かつ継手部閉鎖空間26aに継手部補強用H形鋼36が存在し、さらにコンクリート19が充填されているので、継手部が結合治具32と継手部補強用H形鋼36で補強される。
【0031】
すなわち、継手部に作用する曲げモーメントの大部分は、両継手部H形鋼20で負担し、両継手部H形鋼の長手方向に対して直角方向の曲げモーメントの一部は各両継手部H形鋼20のウエブ22の下部を貫通するボルト等の結合治具32で抵抗する。また、継手部に作用するせん断力に対しては、継手部閉鎖空間26a内の継手部補強用H形鋼36が抵抗する。
【0032】
図8、図9は参考形態2、3を示。各参考形態2、3において、鋼製底板12の対向端部13が若干の間隙14を有して配設され、また、鋼製底板12の上面に継手部H形鋼20が所定間隔で、平行に配設され、下フランジ21を連続すみ肉溶接または断続すみ肉溶接9により固着されている。これらの構成は参考形態1及び実施形態2と略同じであるが、実施形態4、5では、実施形態1,3に比べて、継手部H形鋼20の配設位置が鋼製底板12の対向端部13から若干離れて設けられている。
【0033】
また、図8の参考形態2の継手部においては、両方の鋼製底板12の継手部H形鋼20とその対向端部13の間における鋼製底板12上面に、それぞれ継手部H形鋼20の長手方向に沿って所定間隔で、スタッドなどのずれ止め39が工場にて溶接されている。
【0034】
そして、図8の継手部において、両方の鋼製底板12に跨がって連結鋼板40が配設され、連結鋼板40の両側に開設の開口部44内に前記ずれ止め39を挿入位置させる。
【0035】
さらに、図9の参考形態3の継手部においては、一方の鋼製底板12の継手部H形鋼20とその対向端部13の間における鋼製底板12上面に、継手部H形鋼20の長手方向に沿って所定間隔で、スタッドなどのずれ止め39が工場にて溶接されており、また、他方の鋼製底板12の継手部H形鋼20とその対向端部13の間における鋼製底板12の上面には、継手部H形鋼20の長手方向に沿って所定間隔でボルト42が工場にて溶接されている。
【0036】
そして、図9の継手部において、両方の鋼製底板12に跨がって連結鋼板40が配設され、連結鋼板40の一側に開設の開口41にボルト42を嵌めて、上側からナット43を締結することで、連結鋼板40を一側(図示右側)の鋼製底板12に固着する。またこのとき、連結鋼板40の他側に開設の開口部44内に前記ずれ止め39を挿入位置させる。
【0037】
参考形態2、3において、予め工場において、鋼製底板12に継手部H形鋼20とずれ止め39とボルト42が溶接されてなる鋼製床パネル単体が製作される。そしてこの鋼製床パネル単体が複数現場に搬送され、現場施工にて継手部に連結用鋼板40を配設したうえ、図8の例では両側のずれ止め39を両側の開口部44に位置させ、また、図9の例では、ボルト42にナット43を螺合して、連結用鋼板40を一方の鋼製底板12に固着すると共に、ずれ止め39を開口部44に位置させたうえ、前記の各継手部H形鋼20とずれ止め39と鉄筋24とが埋設されるように、コンクリート19を鋼製底板12の上に所定厚で打設することにより、鋼−コンクリート合成床版11が構築される。
【0038】
参考形態2、3に係る鋼−コンクリート合板床版11にあっては、隣接する鋼製底板12の継手部において、両鋼製底板12の間が連結鋼板40を介して連結され、かつ継手部空間26にずれ止め39を介してコンクリート19が充填されて、継手部が補強される。
【0039】
すなわち、継手部に作用する曲げモーメントの大部分は継手部H形鋼20で負担し、継手部H形鋼20の長手方向に対して直角方向の曲げモーメントの一部に対しては継手部の連結鋼板40で抵抗する。また、継手部に作用するせん断力に対しては、継手部連結鋼板40と、これを貫通するずれ止め39とコンクリート19との一体化構造により抵抗するものである。
【0040】
【発明の効果】
本発明によると、鋼−コンクリート合成床版における隣接する鋼製底板の継手部において、手部形鋼の長手方向に沿って設けたので、継手部に作用する曲げモーメントの大部分を、前記継手部形鋼並びに第1の発明または第2に発明に記載した前記継手部形鋼並びに第1の発明または第2に発明に記載した剛性強化手段で負担し、継手部形鋼の長手方向に対して直角方向には曲げモーメントの負担を軽減し、せん断力のみ伝達することができるので、それによって、比較的大きな力が作用する合成床版の継手部としても有効に機能できる。また、床版上部は従来のように上部鋼板で覆われておらず、開放されているので、コンクリート打設前に上からの作業だけで継手部の構築が可能なので、施工性にも優れるという効果がある。
【図面の簡単な説明】
【図1】 参考形態1に係る合成床版の継手部の断面図である。
【図2】 図1のA−A断面図である。
【図3】 図1の平面図である。
【図4】 実施形態1に係る合成床版の継手部の断面図である。
【図5】 図4のB−B断面図である。
【図6】 実施形態2に係る合成床版の継手部の断面図である。
【図7】 図6のC−C断面図である。
【図8】 参考形態2に係る合成床版の継手部のコンクリート打設前の斜視図である。
【図9】 参考形態3に係る合成床版の継手部のコンクリート打設前の斜視図である。
【図10】 従来例に係る合成床版の継手部の断面図である。
【図11】 図10のD−D断面図である。
【符号の説明】
1 合成床版
2 鋼製底板
3 コンクリート
4 ずれ止め
5 鉄筋
6 継手部形鋼
7 継手部コンクリート
8 上側鋼板
9 すみ肉溶接
10 突き合わせ部
11 合成床版
12 鋼製底板
13 対向端部
14 間隙
15 連結鋼板
16 スタッドピン
17 ピン孔
18 ナット
19 コンクリート
20 継手部H形鋼
20a H形鋼
21 下フランジ
22 ウエブ
23 開口部
24 鉄筋
25 ループ状部
26 継手部空間
27 先端部折り返し鉄筋
29 継手部溝形鋼
30 ウエブ
32 結合治具
33 開口部
34 鋼管
35 ナット
36 継手部補強用H形鋼
37 ウエブ
38 挿通孔
39 ずれ止め
40 連結鋼板
41 開口
42 ボルト
43 ナット
44 開口部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint structure of a steel-concrete composite slab applied to a bridge.
[0002]
[Prior art]
Various conventional techniques of steel-concrete composite floor slab joint structures have been proposed. As an example, there is a joint part of a composite floor slab disclosed in JP-A-9-242237 and its construction method.
[0003]
In the technique disclosed in Japanese Patent Laid-Open No. 9-242237, as shown in FIG. 10 and FIG. 11, in the composite floor slabs 1 and 1 in which the concrete 3 is filled on the steel floor slab 2, each composite slab 1 , 1 project the joint bottom plates 2a, 2a from each other, surround the detents 4, 4 projecting from the joint bottom plates 2a, 2a with the reinforcing bars 5, and connect the two joint steel sections 6, 6 facing each other. , The joint part concrete 7 is cast so that the slip stopper 4 is buried, the upper steel plates 8 are joined to each other through welding of the connecting steel plates 9, and the connecting steel plates 9 cover the upper part of the joint concrete 7. . Reference numeral 10 denotes a butt portion.
[0004]
In the said Unexamined-Japanese-Patent No. 9-242237, since the floor slab upper side is presupposed that it is covered with the steel plate, the burden of a joint part lower side is reduced. Therefore, this structure is effective when the effect of the joint portion is not so great, but when a relatively large force acts on the joint portion, the joint portion structure of the composite floor slab is not effective.
[0005]
[Problems to be solved by the invention]
In the joint part structure of the conventional composite floor slab, when a relatively large force such as bending force, shearing force, torsional force, etc. is applied to the joint part, the structure cannot sufficiently resist the force that destroys the joint part.
[0006]
An object of this invention is to provide the joint part structure of the composite floor slab which solved the said problem.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the joint structure of the composite floor slab according to the present invention is configured as follows.
1st invention couple | bonds the said steel bottom plates adjacent in the synthetic floor slab comprised by integrating a steel bottom plate and the shape steel and reinforcing bar arrange | positioned on this steel bottom plate with concrete. The joint part shape steel adjacent to the joint part is constituted by a grooved steel provided in an arrangement in which the webs are back-to-back, and the grooved steel is formed so as to penetrate each web. It is characterized in that a connecting jig and a steel pipe are installed on the web, and a reinforcing bar is arranged in a direction perpendicular to the longitudinal direction of the channel steel on the upper side of the channel steel and then filled with concrete .
2nd invention couple | bonds the said steel bottom plates adjacent in the synthetic floor slab comprised by integrating a steel bottom plate and the shape steel and reinforcing bar arrange | positioned on this steel bottom plate with concrete. The above-mentioned joint part shape steel adjacent to each other is constituted by channel steel, H-shaped steel or I-shaped steel, and is shaped into a joint part closed space formed by the adjacent joint part steel material. Or joint part reinforcement steel material which consists of square steel pipes is installed, both joint part steel materials are combined with the bolt which penetrates the joint part steel material and joint part reinforcement steel material, and the upper part of the joint part steel material is in the longitudinal direction. It is characterized by the fact that the reinforcing bars are arranged in a perpendicular direction and filled with concrete .
[0008]
[Action]
In the present invention, the steel - the joint portion of the steel base plate adjacent the concrete composite floor slab, that is disposed along the joint hand portion shaped steel longitudinally, most of the bending moment acting on the joint portion, The joint section shape steel and the rigidity reinforcing means described in the first invention or the second invention bear the burden. The bending moment is reduced in the direction perpendicular to the longitudinal direction of the shape steel, and only the shearing force is transmitted. It is a point. Thus, it effectively functions as a joint portion of a composite slab where a relatively large force acts. In addition, the upper part of the slab is not covered with the upper steel plate as in the prior art, but is open, so it is possible to construct joints from the top only before placing concrete, so it has the advantage of excellent workability. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 shows the reference embodiment 1. In the first embodiment, the opposed end portions 13 of adjacent steel bottom plates 12 and 12 in the composite floor slab 11 are arranged close to each other with a slight gap 14 therebetween, and the opposed end portions 13 of the respective steel bottom plates 12 and 12 are arranged. The connecting steel plate 15 is disposed so as to straddle and close the gap 14, and the two members are coupled to each other through bolts and nuts. That is, the connecting steel plate 15 and the opposing end 13 are connected by a simple connecting device. In the illustrated example, the threaded stud pin 16 is erected on the upper surface of the end of each steel bottom plate 12, 12, Each of the steel bottom plates 12 and the connecting steel plate 15 is connected by fitting the pin holes 17 opened on both sides of the connecting steel plate 15 to the stud pins 16 and screwing the nuts 18 into the screw portions of the stud pins 16. And the gap 14 is closed.
[0010]
Each of the steel bottom plates 12, 12 connected in series is separated from each other to form a unit of steel panel, and a concrete 19 is placed on the upper side of each steel bottom plate 12. Thus, a continuous composite floor slab 11 is constructed.
[0011]
Shaped steel such as H-shaped steel and I-shaped steel (H-shaped steel is shown in the figure) 20, with a predetermined spacing on the upper surface of each steel bottom plate 12 which is the main element of each 1-unit steel panel, A plurality of 20a are arranged in parallel, the lower flange 21 is applied to the upper surface of the steel bottom plate 12, and both side edges of the flange are fixed to the steel bottom plate 12 by connecting fillet welding or intermittent fillet welding 9. Hereinafter, the H-section steel provided at the opposite end 13 of the steel bottom plate 12 is referred to as a joint H-section steel 20.
[0012]
As shown in the drawing, openings 23 are opened at predetermined intervals in the web 22 of each joint H-shaped steel 20. Also, the top of each steel bottom plate 12 and 12, respectively rebar 24 disposed at right angles to the longitudinal direction of the steel bottom plate 12 is provided with a loop-shaped portion 25 at an end portion of the reinforcing bar 24. This loop-shaped part 25 is located in the joint part space 26 which is the space | interval part of the joint part H-section steel 20 and 20 located in the opposing edge part 13 in the said adjacent steel bottom boards 12 and 12, and also a loop-shaped part The front end rebar 27 extending from 25 is inserted into the opening 23 formed in the web 22 of the joint H-section steel 20.
[0013]
In the joint portion space 26, one loop-like portion 25 a, 25 b in each of the left and right rebars 24 a, 24 b extending above the adjacent left and right steel bottom plates 12 is one in the longitudinal direction of the joint portion H-section steel 20. Alternatingly arranged. When the reinforcing bar 24 is viewed with the loop-shaped portion 25 as a reference, the loop-shaped portions 25a and 25b disposed at predetermined intervals in the longitudinal direction of the joint H-shaped steel 20 are alternately on the right side. It extends along the upper part of each steel bottom plate 12 and 12 on the left side. In the illustrated example, the end portions 25c and 25d of the other reinforcing bar 24 extending from the side where the loop-shaped portions 25a and 25b are not provided are cut in a straight state.
[0014]
Moreover, the space | interval dimension L1 of the adjacent joint part H-section steels 20 and 20 is provided smaller than the space | interval dimension L of the H-section steels 20a and 20a in another site | part. That is, the arrangement of the H-section steel 20 in the joint portion is provided closer than the interval between the H-section steels 20a in other portions, and thereby the rigidity in the longitudinal direction of the joint portion H-section steels 20 and 20 in the joint portion space 26. Has improved.
[0015]
As described above, an H-section steel 20a and a joint-section H-section steel 20 are welded to the steel bottom plate 12 in advance at the factory to constitute a single steel floor panel, which is transported to the site. The steel bottom plate 12 in the steel floor panel alone is constructed on-site and coupled by a simple coupling device via the connecting steel plate 15. Further, a reinforcing bar 24 with a loop-shaped portion 25 is arranged on the upper portion of each joint H-shaped steel 20 and the loop-shaped portion 25 is arranged in the joint portion space 26. Furthermore, the steel-concrete composite floor slab 11 is constructed by casting concrete 19 with a predetermined thickness on the upper surface of the steel bottom plate 12 so that the joint H-shaped steel 20 and the reinforcing bar 24 with a loop portion are embedded. .
[0016]
In the steel-concrete composite floor slab 11 according to the reference form 1 , in the joint portion space 26 between the adjacent steel bottom plates 12, 12, as described above, the interval between the adjacent joint H-shaped steels 20, 20 is as described above. The dimension L1 is provided smaller than the distance dimension L of the H-section steels 20a, 20a in other parts, thereby improving the longitudinal rigidity of the joint section H-section steels 20, 20 in the joint section space 26. Yes.
[0017]
Furthermore, since there are a plurality of loop-shaped portions 25 integral with the reinforcing bars 24 at predetermined intervals along the longitudinal direction of the joint H-shaped steel 20, the presence of the loop-shaped portions 25 increases the rigidity of the joint in the longitudinal direction. The acting force in the direction perpendicular to the longitudinal direction of the joint H-section steel 20 can be relaxed relatively .
[0018]
That is, in the reference form 1 , in the joint portion between the adjacent steel bottom plates 12 and 12, most of the bending moment applied in the longitudinal direction of the joint portion H-section steel 20 is borne by the joint portion H-section steel 20 and 20. and, for some direction perpendicular bending moment with respect to the longitudinal direction of the joint H-beams 20, to resist a consolidated steel 15 of a simple closing plate combined. Further, the shearing force acting on the joint portion is resisted by the integration of the loop-like portion 25 formed in the joint portion space 26 between the joint portion H-shaped steel 20 and the concrete.
[0019]
4 and 5 show a first embodiment , which corresponds to claim 1 . In the first embodiment , the opposed end portions 13 of the steel bottom plates 12 and 12 are abutted without gaps, and the shape steel disposed at the opposed end portions 13 of the both steel bottom plates 12 and 12 is a groove shape. It is different from the first embodiment in that it is steel 29, the connecting means of the two groove-shaped steels 29 are different, and the end of the reinforcing bar 24 is straight, and other configurations are the same as in the first embodiment. There is [0020]
The first embodiment will be described with a focus on differences from the first embodiment . Both the groove steels 29 and 29 are arranged so that the back sides of the webs 30 face each other, and the lower flanges 21 are made of steel. It is fixed to the upper surface of the bottom plate 12 by continuous fillet welding or intermittent fillet welding 9.
[0021]
As shown in FIGS. 4 and 5, both the groove steels 29, 29 have a slight gap formed between the webs 30 when the opposed end portions 13 of the bottom plates 12 made of both steels face each other. A coupling jig 32 such as a bolt is provided through both webs 30 and a nut is screwed into a threaded portion of the coupling jig 32 to prevent the webs 30 from being separated from each other, and then the concrete 19 is placed. .
[0022]
Further, a plurality of openings 33 are opened at predetermined intervals in the longitudinal direction of the web 30 of both joint section grooved steel 29, and the openings 33 of both webs 30 are provided in alignment with each other. The steel pipe 34 having an outer diameter close to the inner diameter and a predetermined length is inserted into the openings 33.
[0023]
In the first embodiment , a steel panel unit in which the H-shaped steel 20a and the joint grooved steel 29 are welded to the steel bottom plate 12 is manufactured in advance in a factory, and the steel panel unit is transported to the site. The two steel bottom plates 12 are joined by joining both joint groove steels 29 with the joining jig 32 during construction. Next, the steel pipe 34 is inserted and held in the opening 33 of the web 30 of the joint groove steel 29, and the concrete 28 is made of steel so that the joint groove steel 29, the reinforcing bar 24, and the steel pipe 34 are embedded. A steel-concrete composite (composite) floor slab 11 is constructed by placing it on the bottom plate 12 with a predetermined thickness.
[0024]
In the steel-concrete composite floor slab 11 according to the second embodiment, the joint portion between adjacent steel bottom plates 12 and 12 is inserted into the openings 33 of both webs 30 of both joint portion grooved steel 29. The rod-shaped steel material 34 is also filled with the concrete 19, and a plurality of the rod-shaped steel materials 34 are present at predetermined intervals in the longitudinal direction of both joint portion grooved steel 29, so that the joint portion is connected to the rod-shaped steel material 34 and the coupling jig 32. And reinforced by.
[0025]
That is, most of the bending moment acting on the joint portion is borne by both joint portion groove steels 29 arranged so that the webs 30 overlap (that is, denser than the other H-section steels 20a). some of the perpendicular direction of the bending moment with respect to the longitudinal direction of the section channel steel 29 resists a binding jig 32 extending through the lower portion of the web 30. In addition, the steel pipe 34 that penetrates both webs 30 of the joint section grooved steel 29 is resisted against the shearing force acting on the joint section.
[0026]
6 and 7 show a second embodiment , which is an embodiment corresponding to claim 2 . In the third embodiment, the H-section steel 20a and the joint H-section steel 20 are arranged in parallel at predetermined intervals on the upper surface of the steel bottom plate 12, and the lower flange 21 is fixed by continuous fillet welding or intermittent fillet welding 9. Has been. These configurations are the same as those in the first embodiment.
[0027]
In the second embodiment , in addition to the above-described configuration, the joint portion closed space 26a formed between the joint portions H-section steel 20 in the joint portion is formed along the longitudinal direction of the joint portions H-section steel 20 with H. Shaped steel, I-shaped steel, grooved steel, etc., or square steel pipes are arranged. In the figure, an example in which an H-shaped steel 36 for joint joint reinforcement is arranged is shown. ing. The joint portion reinforcing H-section steel 36 is provided with a width and a height that fit within the joint portion closed space 26a. An insertion hole 38 for a coupling jig 32 such as a bolt is formed in the web 37 of the H-shaped steel 36 for reinforcing the joint portion.
[0028]
Then, a coupling jig 32 such as a bolt is provided through the web 22 of both joint parts H-section steel 20 of each steel bottom plate 12 and the lower part of the web 37 of the joint-section reinforcing H-section steel 36, and the jig A nut 35 is screwed into the 32 threaded portions to prevent the two webs 22 of the joint H-shaped steel 20 from being separated from each other, and the concrete 19 is cast to constitute the joint portion of the bottom plates 12 made of both steels.
[0029]
In the second embodiment , a single steel floor panel in which the H-shaped steel 20a and the joint H-shaped steel 20 are welded to the steel bottom plate 12 is manufactured in advance in a factory, and this single steel floor panel is transported to the site. The both steel bottom plates 12 are joined by joining the joints H-shaped steel 20 with the joining jig 32 at the site construction. In addition, the joint portion reinforcing H-section steel 36 is disposed in the joint portion closed space 26a, and the joint portion reinforcement H-section steel 20, the joint portion reinforcement H-section steel 36, and the reinforcing bar 24 are embedded in the concrete. The steel-concrete composite floor slab 11 is constructed by placing 19 on the upper surface of the steel bottom plate 12 with a predetermined thickness.
[0030]
In the steel-concrete composite floor slab 11 according to the third embodiment, the joint portions of adjacent steel bottom plates 12 are connected between the joint portions H-shaped steel 20 by the coupling jig 32 and the joint portion is closed. Since the joint portion reinforcing H-section steel 36 exists in the space 26 a and is filled with the concrete 19, the joint portion is reinforced by the coupling jig 32 and the joint portion reinforcement H-section steel 36.
[0031]
That is, most of the bending moment acting on the joint portion is borne by the two joint portions H-section steel 20, and a part of the bending moment in the direction perpendicular to the longitudinal direction of both joint portions H-section steel is part of each joint portion. It resists with the coupling jigs 32, such as a volt | bolt which penetrates the lower part of the web 22 of the H-section steel 20. FIG. Further, the H-section steel for reinforcing the joint portion 36 in the joint portion closed space 26a resists the shearing force acting on the joint portion.
[0032]
8 and 9 shows the reference embodiment 2. In each reference form 2 and 3 , the opposed end 13 of the steel bottom plate 12 is disposed with a slight gap 14, and the joint H-shaped steel 20 is formed on the upper surface of the steel bottom plate 12 at a predetermined interval. Arranged in parallel, the lower flange 21 is fixed by continuous fillet welding or intermittent fillet welding 9. These configurations are substantially the same as those in the first and second embodiments, but in the fourth and fifth embodiments, the joint portion H-shaped steel 20 is disposed at the position of the steel bottom plate 12 as compared with the first and third embodiments. It is provided slightly away from the facing end 13.
[0033]
Moreover, in the joint part of the reference form 2 of FIG. 8, the joint part H-section steel 20 is respectively provided on the upper surface of the steel bottom plate 12 between the joint section H-section steel 20 of both the steel bottom plates 12 and the opposite end 13 thereof. A detent 39 such as a stud is welded at a factory at predetermined intervals along the longitudinal direction.
[0034]
Then, in the joint portion of FIG. 8, the connecting steel plate 40 is disposed so as to straddle both the steel bottom plates 12, and the shift stopper 39 is inserted into the opening 44 formed on both sides of the connecting steel plate 40.
[0035]
Furthermore, in the joint part of the reference form 3 in FIG. 9, the joint part H-section steel 20 is formed on the upper surface of the steel bottom plate 12 between the joint section H-section steel 20 of one steel bottom plate 12 and the opposite end 13. Studs 39 such as studs are welded at the factory at predetermined intervals along the longitudinal direction, and the steel part between the joint H-shaped steel 20 of the other steel bottom plate 12 and its opposite end 13 is made of steel. Bolts 42 are welded to the upper surface of the bottom plate 12 at predetermined intervals along the longitudinal direction of the joint H-section steel 20.
[0036]
In the joint portion of FIG. 9, the connecting steel plate 40 is disposed so as to straddle both the steel bottom plates 12, and the bolts 42 are fitted into the opening 41 that is open on one side of the connecting steel plate 40, and the nut 43 from above. Is fastened to the steel bottom plate 12 on one side (the right side in the figure). Further, at this time, the stopper 39 is inserted into the opening 44 formed on the other side of the connecting steel plate 40.
[0037]
In each of the reference forms 2 and 3 , a steel floor panel alone, in which the joint H-shaped steel 20, the stopper 39, and the bolt 42 are welded to the steel bottom plate 12 in advance, is manufactured. The steel floor panel alone is transported to a plurality of sites, and the connecting steel plates 40 are disposed at the joints at the site construction, and in the example of FIG. 8, the shift stoppers 39 on both sides are positioned in the openings 44 on both sides. In the example of FIG. 9, a nut 43 is screwed into the bolt 42 to fix the connecting steel plate 40 to one steel bottom plate 12, and the stopper 39 is positioned in the opening 44. By placing concrete 19 on the steel bottom plate 12 with a predetermined thickness so that the joint H-shaped steel 20, the stopper 39 and the reinforcing bar 24 are embedded, the steel-concrete composite slab 11 is formed. Built.
[0038]
In the steel-concrete plywood floor slab 11 according to the reference forms 2 and 3 , in the joint portion of the adjacent steel bottom plates 12, the two steel bottom plates 12 are connected via the connecting steel plate 40, and the joint portion. The space 19 is filled with the concrete 19 through the stopper 39 and the joint portion is reinforced.
[0039]
That is, most of the bending moment acting on the joint is borne by the joint H-shaped steel 20, perpendicular to the longitudinal direction of the joint H-beam 20 bending joint for some moments Resist with the connecting steel plate 40. Moreover, it resists with respect to the shear force which acts on a joint part by the integrated structure of the joint part connection steel plate 40, the slippage 39 and the concrete 19 which penetrate this.
[0040]
【The invention's effect】
According to the present invention, the steel - the joint portion of the steel base plate adjacent the concrete composite slab, since there is provided along the longitudinal direction of the joint hand portion shaped steel, most of the bending moment acting on the joint portion, the The joint part shape steel and the joint part shape steel described in the first invention or the second invention are borne by the rigidity reinforcing means described in the first invention or the second invention, and in the longitudinal direction of the joint part shape steel. On the other hand, since the load of bending moment can be reduced in the direction perpendicular to the shearing force and only the shearing force can be transmitted, it can effectively function as a joint portion of a composite slab where a relatively large force acts. In addition, because the upper part of the floor slab is not covered with the upper steel plate as in the past, it is open, so it is possible to construct the joint part only from the top before placing the concrete, so it is also excellent in workability effective.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a joint portion of a composite floor slab according to Reference Embodiment 1. FIG.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a plan view of FIG. 1;
4 is a cross-sectional view of a joint portion of a composite floor slab according to Embodiment 1. FIG.
5 is a cross-sectional view taken along the line BB in FIG.
FIG. 6 is a cross-sectional view of a joint portion of a composite floor slab according to a second embodiment .
7 is a cross-sectional view taken along the line CC of FIG.
[Fig. 8] It is a perspective view before the concrete placement of the joint part of the synthetic floor slab which concerns on the reference form 2. FIG.
FIG. 9 is a perspective view of a joint portion of a composite floor slab according to Reference Embodiment 3 before placing concrete.
FIG. 10 is a cross-sectional view of a joint portion of a composite slab according to a conventional example.
11 is a cross-sectional view taken along the line DD of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Synthetic floor slab 2 Steel bottom board 3 Concrete 4 Detachment 5 Reinforcement 6 Joint part shape steel 7 Joint part concrete 8 Upper steel plate 9 Fillet weld 10 Butt part 11 Synthetic floor slab 12 Steel bottom board 13 Opposite end 14 Gap 15 Connection Steel plate 16 Stud pin 17 Pin hole 18 Nut 19 Concrete 20 Joint part H-section steel 20a H-section steel 21 Lower flange 22 Web 23 Opening part 24 Reinforcing bar 25 Loop part 26 Joint part space 27 Folded reinforcing bar 29 Joint part channel steel 30 Web 32 Coupling jig 33 Opening 34 Steel pipe 35 Nut 36 Joint-shaped reinforcing H-shaped steel 37 Web 38 Insertion hole 39 Detent 40 Connecting steel plate 41 Opening 42 Bolt 43 Nut 44 Opening

Claims (2)

鋼製底板と、この鋼製底板上に配設される形鋼および鉄筋とをコンクリートで一体化して構成される合成床版において、
隣接する前記鋼製底板同士を結合するための継手部構造であって、
継手部において隣接位置する継手部形鋼を、ウエブ同士が背中合わせとなる配置に設けた溝形鋼で構成し、
各ウエブを貫通するように当該溝形鋼のウエブに結合治具と鋼管を設置し、
溝形鋼の上側には、当該溝形鋼の長手方向に対して直角方向に鉄筋を配置したうえでコンクリートを充填した構成を特徴とする合成床版の継手部構造。
In the composite floor slab constructed by integrating the steel bottom plate and the shape steel and rebar disposed on the steel bottom plate with concrete,
A joint structure for joining adjacent steel bottom plates,
The joint section steel adjacent in the joint section is composed of channel steel provided in an arrangement where the webs are back to back,
Install a coupling jig and a steel pipe on the web of the channel steel so as to penetrate each web,
A joint structure of a composite floor slab characterized by a structure in which reinforcing bars are arranged in a direction perpendicular to the longitudinal direction of the channel steel on the upper side of the channel steel and filled with concrete .
鋼製底板と、この鋼製底板上に配設される形鋼および鉄筋とをコンクリートで一体化して構成される合成床版において、
隣接する前記鋼製底板同士を結合するための継手部構造であって、
隣接位置する前記各継手部形鋼を溝形鋼,H形鋼またはI形鋼で構成し、
隣接する継手部鋼材によって形成される継手部閉鎖空間に形鋼あるいは角鋼管からなる継手部補強鋼材を設置し、
前記継手部鋼材と継手部補強鋼材を貫通するボルトによって、両継手部鋼材を結合し、
継手部鋼材の上側には、その長手方向に対して直角方向に鉄筋を配置したうえで、コンクリートを充填したことを特徴とする合成床版の継手部構造。
In the composite floor slab constructed by integrating the steel bottom plate and the shape steel and rebar disposed on the steel bottom plate with concrete,
A joint structure for joining adjacent steel bottom plates,
Each of the joint section steels located adjacent to each other is composed of channel steel, H-section steel, or I-section steel,
Installed joint reinforcement steel material consisting of shape steel or square steel pipe in the joint closed space formed by adjacent joint steel,
The bolts that penetrate the joint part steel material and the joint part reinforcing steel material are combined with both joint part steel materials,
On the upper side of the joint part steel material, a reinforcing bar is arranged in a direction perpendicular to the longitudinal direction, and then the concrete is filled with concrete .
JP25865899A 1999-09-13 1999-09-13 Joint structure of composite floor slab Expired - Fee Related JP4048007B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25865899A JP4048007B2 (en) 1999-09-13 1999-09-13 Joint structure of composite floor slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25865899A JP4048007B2 (en) 1999-09-13 1999-09-13 Joint structure of composite floor slab

Publications (2)

Publication Number Publication Date
JP2001081724A JP2001081724A (en) 2001-03-27
JP4048007B2 true JP4048007B2 (en) 2008-02-13

Family

ID=17323317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25865899A Expired - Fee Related JP4048007B2 (en) 1999-09-13 1999-09-13 Joint structure of composite floor slab

Country Status (1)

Country Link
JP (1) JP4048007B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020219285A1 (en) * 2019-04-24 2020-10-29 Big Time Investment, Llc Method and apparatus for fabricating a floor plate for a building

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100489382B1 (en) * 2002-07-12 2005-05-16 한국건설기술연구원 Hybrid Type Composite Deck having Closed Sectional Deck Plate and I Beam, and Constructing Method thereof
KR100489383B1 (en) * 2002-07-15 2005-05-16 한국건설기술연구원 Hybrid Type Composite Deck having Deck Plate and I Beam, and Constructing Method thereof
FR2851779B1 (en) * 2003-02-27 2006-05-19 Conseil Service Investissement PREFABRICATED BUILDING ELEMENT
KR100885662B1 (en) 2007-09-28 2009-02-25 한국전력공사 Concrete structures with minimal support for intermediate supports
WO2009087321A1 (en) * 2008-01-07 2009-07-16 Societe Civile De Brevets Matiere Prefabricated element for creating a reinforced concrete slab and slab thus created
JP5279549B2 (en) * 2008-11-13 2013-09-04 株式会社Ihiインフラシステム Gibber device for joining steel members to concrete member, synthetic floor slab and steel-concrete structure provided with the gibber device
CN103306202B (en) * 2013-06-14 2015-04-29 中铁大桥局集团第二工程有限公司 Steel panel used in fabricated Bailey truss in matching manner
CN111764277B (en) * 2020-06-03 2021-10-22 华汇工程设计集团股份有限公司 Hinge joint shearing force calculation method of simply supported hollow slab bridge considering hinge joint damage
CN114855594B (en) * 2022-05-11 2023-05-09 北京建筑大学 A steel-concrete composite beam bridge shear connector and its construction method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56150252A (en) * 1980-04-18 1981-11-20 Kajima Corp Slab constituting method including steel skeleton temporary installed beam therein
JPS61274034A (en) * 1985-05-29 1986-12-04 鹿島建設株式会社 Connection of steel plate/concrete slab unit
JP3191569B2 (en) * 1993-07-28 2001-07-23 住友金属工業株式会社 Composite slab, method of construction, and joint of composite slab
JP3623063B2 (en) * 1996-01-31 2005-02-23 日立造船株式会社 Connection part structure between structural members in a structure
JPH09242237A (en) * 1996-03-08 1997-09-16 Sumitomo Metal Ind Ltd Composite floor slab joint and its construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020219285A1 (en) * 2019-04-24 2020-10-29 Big Time Investment, Llc Method and apparatus for fabricating a floor plate for a building
US10900218B2 (en) 2019-04-24 2021-01-26 Big Time Investment, Llc Method and apparatus for fabricating a floor plate for a building

Also Published As

Publication number Publication date
JP2001081724A (en) 2001-03-27

Similar Documents

Publication Publication Date Title
JP4245657B1 (en) Rigid connection structure between pier and concrete girder
JP3678831B2 (en) Steel-concrete composite floor slab bridge and its construction method
JP2000319816A (en) Rigid structure of upper and lower composite members
JP4347500B2 (en) Bridge girder
JP2002250009A (en) Steel concrete composite girder using corrugated steel web
JP2872346B2 (en) Prefab slab installation method
JP4048007B2 (en) Joint structure of composite floor slab
CN103437493B (en) Connection Nodes and Construction Methods of Prefabricated Reinforced Concrete Beams
JP3410368B2 (en) Connection method of corrugated steel web girder
JP2002161603A (en) Method for fixing full pc floor board
JP2003221808A (en) Corrugated steel web girder
KR20130081605A (en) Corrugated steel plate web-psc composite beam structure which combined corrugated steel plate and concrete plate with l shape steel
JPH11293626A (en) Bridge structure
JP2006183286A (en) Connection structure of corrugated steel web for corrugated steel web u-shaped component bridge
JPS6349776B2 (en)
JPH08302619A (en) Bonding structure of composite members
JP2813107B2 (en) Bridge
JP3682521B2 (en) Structure of two-stage main girder composite floor slab bridge
JP3442319B2 (en) Precast PC web for concrete bridge and prestressed concrete bridge having the PC web
JP2008088634A (en) Steel concrete composite slab
KR101141885B1 (en) Joint between steel pipe and concrete chord member of Steel truss hybrid girder and steel pipe truss hybrid girder using the same
CN108661208B (en) Horizontal node connection method for assembled steel plate concrete shear wall
JP7597095B2 (en) Joint structure between steel girder and concrete girder
JPH0454037B2 (en)
JP7780324B2 (en) Earthquake-resistant reinforcement method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050913

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20061106

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061108

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20061211

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070601

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070710

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20070717

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070910

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20070910

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20071019

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071113

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071126

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

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

Free format text: PAYMENT UNTIL: 20101130

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

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

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

Free format text: PAYMENT UNTIL: 20111130

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20111130

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20121130

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees