JP2004044095A

JP2004044095A - Steel concrete composite structure

Info

Publication number: JP2004044095A
Application number: JP2002199483A
Authority: JP
Inventors: Shigeharu Atsuizumi; 温泉　重治; Hidetoshi Shirooka; 城岡　英敏; Manabu Yamada; 山田　学; Toru Takahashi; 高橋　徹
Original assignee: Sho Bond Corp
Current assignee: Sho Bond Corp
Priority date: 2002-07-09
Filing date: 2002-07-09
Publication date: 2004-02-12
Anticipated expiration: 2022-07-09
Also published as: JP3612527B2

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that in work for fixing the valley part of a band steel to a lower steel plate and then fixing an upper steel plate to the crest part of the band steel is very troublesome from the inside and inefficient because of a small thickness between the upper steel plate and the lower steel plate. <P>SOLUTION: In binding the lower steel plate and the valley part of the band steel and then binding to the crest part of the upper steel plate and fixing the same, a pair of washers are previously fixed to the crest part of the band steel, and the upper steel plate is bound and fixed from the outside of the upper steel plate fixed to the crest part of the band steel with a bolt and a nut. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、道路橋の床版、床版橋、覆道の頂板等を構成する上下鋼板をせん断部材で連結し、上下鋼板間にコンクリートを打設してなる鋼コンクリート合成構造物に関する。
【０００２】
【従来の技術】
道路橋の床版、覆道の頂板等としての構造物の一つに上鋼板と下鋼板をせん断部材で連結し、上鋼板と下鋼板間にコンクリートを打設して形成されるコンクリート構造物がある。
【０００３】
この構造物は、図２２に示すようにロックシェッド頂板、図２３及び図２４に示すように、小径間橋梁、鋼桁橋梁等の床版として利用されている。
【０００４】
この構造物は、図２１に示すように、上鋼板２と下鋼板１との間にせん断部材として帯鋼３が配置されその山部３ｂと谷部３ａがそれぞれ上鋼板２と下鋼板１にボルト挿通孔を介してボルト、ナットにより固定されている。
【０００５】
【発明が解決しようとする課題】
しかしながら、この構造物の上鋼板と下鋼板の間は、狭い厚さのためこの内部に作業者が入り込んで多数の帯鋼を配置することは難しい。特に帯鋼の谷部を下鋼板に固定した後、帯鋼の山部を上鋼板にボルト、ナットにより固定する作業は、内側からでは大変面倒で非能率的である。
【０００６】
【課題を解決するための手段】
本発明は、このような課題を以下述べるところにより解決しようとするものである。
【０００７】
基本的には、下鋼板と上鋼板との間に谷部と山部とを形成した帯鋼の複数をそれぞれ適宜の間隔で配置して固定してなる鋼コンクリート合成構造物であって、下鋼板と帯鋼の谷部とを、帯鋼の谷部を帯鋼の谷部の凹面又は凸面に沿う曲面からなる添接面と下鋼板のボルト挿通孔及び帯鋼の谷部のボルト挿通孔に合うボルト挿通孔を有する一対のワッシャではさみ込むとともにこれらのボルト挿通孔を介してボルト、ナットで固定したのち、上鋼板と帯鋼の山部とを、帯鋼の山部を帯鋼の山部の凸面又は凹面に沿う曲面からなる添接面と上鋼板のボルト挿通孔及び帯鋼の山部のボルト挿通孔に合うボルト挿通孔を有する一対のワッシャではさみ込むとともに、ワッシャを帯鋼の山部に固定し、これらのボルト挿通孔を介してボルト、ナットで固定することを特徴とする鋼コンクリート合成構造物を提供する。
【０００８】
上記コンクリート合成構造物にあって、帯鋼の山部又は谷部の凸面又は凹面のそれぞれに沿う曲面からなる添接面を有する一対のワッシャの帯鋼の山部又は谷部への固定は、一対のワッシャのそれぞれにボルト挿通孔をはさんで対向するとともにはさみ込んだ帯鋼との直交方向の側部に形成した突起部を止め具を用いて結合することを特徴とする。
【０００９】
同じく、帯鋼の山部又は谷部の凸面又は凹面のそれぞれに沿う曲面からなる添接面を有する一対のワッシャの帯鋼の山部又は谷部への固定は、一対のワッシャのそれぞれにボルト挿通孔をはさんで対向するとともにはさみ込んだ帯鋼との直交方向側部に形成した凹部を止め具を用いて結合することを特徴とする。
【００１０】
同じく、帯鋼の山部又は谷部の凸面又は凹面のそれぞれに沿う曲面からなる添接面を有する一対のワッシャの帯鋼の山部又は谷部への固定は、帯鋼を一対のワッシャではさみ込むとともに、帯鋼凸面側ワッシャ外側にナットを添接し、帯鋼凹面側ワッシャ外側よりボルトを挿通して結合し、ボルトを上方に突出することを特徴とする。
【００１１】
同じく、帯鋼の山部又は谷部の凸面又は凹面のそれぞれに沿う曲面からなる添接面を有する一対のワッシャの帯鋼の山部又は谷部への固定は、帯鋼を一対のワッシャではさみ込むとともに、帯鋼凹面側ワッシャ外側よりボルトを挿通して突出させ、ボルトと帯鋼とボルト突出側ワッシャとボルト間のボルト挿通孔にくさびを打込むことを特徴とする。
【００１２】
上記構成において、本発明は、下鋼板にせん断部材である帯鋼を予め固定した後、すなわち、下鋼板に帯鋼の谷部を固定したときは、帯鋼の山部に、それぞれ凸部又は凹部のそれぞれの曲面に沿う添接面を有する一対のワッシャで帯鋼をはさみ込んで固定してあるので、上鋼板を予め形成してあるそれぞれのボルト挿通孔を介して、外部から容易に取り付けることができる。
【００１３】
【発明の実施の形態】
つぎに、本発明の実施の形態を図面に基き説明する。
【００１４】
まず、図１に示すように、下鋼板１の所定の個所に帯鋼３を谷部３ａと山部３ｂを形成して配置し、谷部３ａを下鋼板１に固定する。帯鋼３の谷部３ａは、一対のワッシャ４、５によりはさみ込まれている。ワッシャ４は図４に示すように帯鋼３の凸面に沿う添接面４ａ、ワッシャ５は帯鋼３の凹面に沿う添接面５ａが形成されている。下鋼板１と帯鋼３の谷部３ａ、ワッシャ４、５にはそれぞれボルト挿通孔１ａ、３ｃ、４ｂ、５ｂが穿孔されている。下鋼板１と帯鋼３の谷部３ａとの固定は、ワッシャ４、５間に帯鋼３の谷部３ａをはさみ込んで位置させた下鋼板１の外側からボルト挿通孔１ａ、５ｂ、３ｃ、４ｂを介してボルト６を挿通し、ナット７を付けて行う。
【００１５】
帯鋼３の山部３ｂには、図２に示すようにこの山部３ｂをはさんで、一対のワッシャ８、９が固定され、図３に示すように、このワッシャ８、９を利用してボルト１０、ナット１１により上鋼板２が帯鋼３の山部３ｂに固定される。
【００１６】
つぎに、ワッシャ８、９の構造と帯鋼３の山部３ｂへの固定の仕方、上鋼板２のこの帯鋼３の山部３ｂへの固定の仕方の具体的な実施の形態を説明する。
【００１７】
まず、図５乃至図８に基き説明する。
【００１８】
一対のワッシャ８、９は図５に示すように、それぞれ帯鋼３の山部３ｂの凹面に沿う添接面８ａ、山部３ｂの凸面に沿う添接面９ａが形成されるとともに帯鋼３の山部３ｂに形成されたボルト挿通孔３ｃに合うボルト挿通孔８ｂ、９ｂが穿孔されている。この実施の形態においては、一対のワッシャ８、９のそれぞれにボルト挿通孔８ｂ、９ｂをはさんで対向するとともにはさみ込んだ帯鋼３との直交方向の両側部に突起部１２、１２、１３、１３が形成されている。また、ワッシャ８の端部にはボルト挿通孔８ｂに連通するナット１１が固定されている。この図ではカバー１５により押圧されている。
【００１９】
このようにしてなるワッシャ８、９と帯鋼３とは、図６に示すように、ワッシャ８の添接面８ａを帯鋼３の山部３ｂの凹面に添接し、ワッシャ９の添接面９ａを帯鋼３の山部３ｂの凸面に添接して帯鋼３の山部３ｂをはさみ込んで、ワッシャ８、９に形成した突起部１２と１３にねじ、ピン等の止め具１４を差し込んで結合して固定される。
【００２０】
ついで、上鋼板２と帯鋼３の山部３ｂとを、図７に示すように、上鋼板２に穿孔したボルト挿通孔２ａとワッシャ９のボルト挿通孔９ｂ、帯鋼３の山部３ｂのボルト挿通穴３ｃ、ワッシャ８のボルト挿通孔８ｂとを一致させ、図８に示すように、上鋼板２の外側からボルト１０を挿通し、ワッシャ８の端部に固定したナット１１にボルト１０を螺合して結合し、固定する。
【００２１】
つぎに、別の実施の形態を図９乃至図１２に基き説明する。
【００２２】
一対のワッシャ８、９は、図９に示すように、それぞれ帯鋼３の山部３ｂの凹面に沿う添接面８ａ、山部３ｂの凸面に沿う添接面９ａが形成されるとともに鋼板３の山部３ｂに形成されたボルト挿通孔３ｃに合うボルト挿通孔８ｂ、９ｂが穿孔されている。この実施の形態においては、一対のワッシャ８、９のそれぞれにボルト挿通孔８ｂ、９ｂをはさんで対向するとともにはさみ込んだ帯鋼３との直交方向の側部に凹部１６、１６、１７、１７が形成されている。また、ワッシャ８の端部にはボルト挿通孔８ｂに連通するナット１１が固定されている。この図ではカバー１５により押圧されている。
【００２３】
このようにしてなるワッシャ８、９と帯鋼３とは、図１０に示すように、ワッシャ８の添接面８ａと帯鋼３の山部３ｂの凹面に添接し、ワッシャ９の添接面９ａを帯鋼３の山部３ｂの凸面に添接して帯鋼３の山部をはさみ込んで、ワッシャ８、９に形成した凹部１６、１７とをクリップ、カスガイ等の止め具１８ではさみ込んで結合して固定される。
【００２４】
ついで、上鋼板２と帯鋼３の山部３ｂとを、図１１に示すように、上鋼板２に穿孔したボルト挿通孔２ａとワッシャ９のボルト挿通孔９ｂ、帯鋼３の山部３ｂのボルト挿通孔３ｃ、ワッシャ８のボルト挿通孔８ｂと一致させ、図１２に示すように、上鋼板２の外側からボルト１０を挿通し、ワッシャ８の端部に固定したナット１１にボルト１０を螺合して結合し、固定する。
【００２５】
つぎに、さらに別の実施の形態を図１３乃至図１６に基き説明する。
【００２６】
一対のワッシャ８、９は図１３に示すように、それぞれ帯鋼３の山部３ｂの凹面の添接面８ａ、山部３ｂの凸面に沿う添接面９ａが形成されるとともに、帯鋼３の山部３ｂに形成されたボルト挿通孔３ｃに合うボルト挿通孔８ｂ、９ｂが穿孔されている。
【００２７】
このようにしてなるワッシャ８、９と帯鋼３とは、図１４に示すように、ワッシャ８の添接面８ａを帯鋼３の山部３ｂの凹面に添接し、ワッシャ９の添接面９ａを帯鋼３の山部３ｂの凸面に添接して帯鋼３の山部３ｂをはさみ込んで、ワッシャ８の外側からボルト挿通孔８ｂ、３ｃ、９ｂにボルト１０を挿通し、反対側に突出させ、突出側からボルトに薄ナット１９を螺合結合して固定される。
【００２８】
ついで、上鋼板２と帯鋼３の山部３ｂとを、図１５に示すように、上鋼板２に穿孔したボルト挿通孔２ａにワッシャ８、帯鋼３の山部３ｂ、ワッシャ９のボルト挿通孔８ｂ、３ｃ、９ｂを貫通して突出したボルト１０を挿通して、図１６に示すように、上鋼板２の外側からナット１１を付けて結合し、固定する。
【００２９】
つぎに、また、さらに別の実施の形態を図１７乃至図２０に基き説明する。
【００３０】
一対のワッシャ８、９は、図１７に示すように、それぞれ帯鋼３の山部３ｂの凹面の添接面８ａ、山部３ｂの凸面に沿う添接面９ａが形成されるとともに、帯鋼３の山部３ｂに形成されたボルト挿通孔３ｃに合うボルト挿通孔８ｂ、９ｂが穿孔されている。ここで、ワッシャ９に形成されるボルト挿通孔のワッシャ９の外方側は、後述するくさびが打ち込むことのできるように、くさび打込み径２０分だけ大径となっている。
【００３１】
このようにしてなるワッシャ８、９と帯鋼３とは、図１８に示すように、ワッシャ８の添接面８ａを帯鋼３の山部３ｂの凹面に添接し、ワッシャ９の添接面９ａを帯鋼３の山部３ｂの凸面に添接して帯鋼３の山部３ｂをはさみ込んで、ワッシャ８の外側からボルト挿通孔８ｂ、３ｃ、９ｂにボルト１０を挿通し、反対側に突出させ、突出側にくさび２０を打込んで固定される。
【００３２】
ついで、上鋼板２と帯鋼３の山部３ｂとを、図１９に示すように、上鋼板２に穿孔したボルト挿通孔２ａにワッシャ８、帯鋼３の山部３ｂ、ワッシャ９のボルト挿通孔８ｂ、３ｃ、９ｂを貫通して突出したボルト１０を挿通して図２０に示すように、上鋼板２の外側からナット１１を付けて結合し、固定する。なお、上鋼板２に形成されるボルト挿通孔２ａは、くさび２０分だけ多少大径に形成される。
【００３３】
このようにして、全体として、下鋼板１とワッシャ４、５にはさみ込まれた帯鋼３の谷部３ａとを、それぞれ形成されたボルト挿通孔１ａ、４ｂ、３ｃ、５ｂにボルト６を挿通してナット７で結合して固定し、上鋼板２と帯鋼３の山部３ｂとを、帯鋼３の山部３ｂを帯鋼３の山部３ｂの凹面又は凸面に沿う曲面からなる添接面８ａ、９ａと下鋼板１のボルト挿通孔１ａに合うボルト挿通孔８ｂ、９ｂを有する一対のワッシャ８、９ではさみ込むとともにワッシャ８、９を帯鋼３の山部３ｂに固定し、これらのボルト挿通孔４ｂ、３ｃ、５ｂ、１ａをボルト１０、ナット１１で固定した鋼コンクリート合成構造物が形成される。
【００３４】
【発明の効果】
本発明は、上述のようにしてなるので、つぎの効果を有する。
【００３５】
下鋼板を帯鋼の谷部に結合して固定した後、上鋼板を帯鋼の山部に結合して固定するにあたり、予め帯鋼の山部に一対のワッシャを固定して、帯鋼の山部に固定する上鋼板の外側から上鋼板をボルト及びナットを用いて結合して固定する構造としたので、その組立てはきわめて容易である。
【図面の簡単な説明】
【図１】下鋼板に帯鋼の谷部を固定した状態を示す側面図である。
【図２】図１において、帯鋼の山部に一対のワッシャを固定した状態を示す側面図である。
【図３】図２において、上鋼板を帯鋼の山部に固定した状態を示す側面図である。
【図４】下鋼板と帯鋼の谷部との固定部の詳細図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＸ−Ｘ断面図である。
【図５】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＡ−Ａ断面図である。
【図６】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＢ−Ｂ断面図である。
【図７】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＣ−Ｃ断面図である。
【図８】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＤ−Ｄ断面図である。
【図９】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＥ−Ｅ断面図である。
【図１０】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＦ−Ｆ断面図である。
【図１１】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＧ−Ｇ断面図である。
【図１２】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方の別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＨ−Ｈ断面図である。
【図１３】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のさらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＩ−Ｉ断面図である。
【図１４】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のさらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＪ−Ｊ断面図である。
【図１５】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のさらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＫ−Ｋ断面図である。
【図１６】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のさらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＬ−Ｌ断面図である。
【図１７】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のまた、さらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＭ−Ｍ断面図である。
【図１８】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のまた、さらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＮ−Ｎ断面図である。
【図１９】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のまた、さらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＯ−Ｏ断面図である。
【図２０】ワッシャの帯鋼の山部への固定の仕方と上鋼板の帯鋼の山部への固定の仕方のまた、さらに別の実施の形態を示す施工手順図である。図において、（ａ）は側面図、（ｂ）は（ａ）のＰ−Ｐ断面図である。
【図２１】従来例を示す断面図である。
【図２２】使用例を示す概略図である。
【図２３】使用例を示す概略図である。
【図２４】使用例を示す概略図である。
【符号の説明】
１　　下鋼板
１ａ　ボルト挿通孔
２　　上鋼板
２ａ　ボルト挿通孔
３　　帯鋼
３ａ　谷部
３ｂ　山部
３ｃ　ボルト挿通孔
４　　帯鋼の凸面に沿うワッシャ
４ａ　添接面
４ｂ　ボルト挿通孔
５　　帯鋼の凹面に沿うワッシャ
５ａ　添接面
５ｂ　ボルト挿通孔
６　　ボルト
７　　ナット
８　　帯鋼の凹面に沿うワッシャ
８ａ　添接面
８ｂ　ボルト挿通孔
９　　帯鋼の凸面に沿うワッシャ
９ａ　添接面
９ｂ　ボルト挿通孔
１０　ボルト
１１　ナット
１２　ワッシャに形成された突起部
１３　ワッシャに形成された突起部
１４　止め具
１５　カバー
１６　ワッシャに形成された凹部
１７　ワッシャに形成された凹部
１８　止め具
１９　薄ナット
２０　くさび[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a steel-concrete composite structure formed by connecting upper and lower steel plates constituting a floor slab of a road bridge, a floor slab bridge, a top plate of an overpass, and the like with a shear member, and placing concrete between the upper and lower steel plates.
[0002]
[Prior art]
A concrete structure formed by connecting an upper steel plate and a lower steel plate to one of the structures as a deck for a road bridge, a top plate of an eaves, etc. with a shear member and placing concrete between the upper steel plate and the lower steel plate There is.
[0003]
This structure is used as a rock slab top plate as shown in FIG. 22, and as a floor slab of a small span bridge, a steel girder bridge or the like as shown in FIGS. 23 and 24.
[0004]
In this structure, as shown in FIG. 21, a steel strip 3 is arranged as a shear member between an upper steel plate 2 and a lower steel plate 1 and its peaks 3b and valleys 3a are formed in the upper steel plate 2 and the lower steel plate 1, respectively. It is fixed with bolts and nuts through bolt insertion holes.
[0005]
[Problems to be solved by the invention]
However, because of the small thickness between the upper steel plate and the lower steel plate of this structure, it is difficult for an operator to enter the inside and arrange a large number of steel strips. In particular, the work of fixing the valley of the steel strip to the lower steel sheet and then fixing the ridge of the steel strip to the upper steel sheet with bolts and nuts is very troublesome and inefficient from the inside.
[0006]
[Means for Solving the Problems]
The present invention is to solve such a problem as described below.
[0007]
Basically, it is a steel-concrete composite structure in which a plurality of strips each having a valley and a peak formed between a lower steel plate and an upper steel plate are arranged and fixed at appropriate intervals, respectively. The steel sheet and the valley of the steel strip, the valley of the steel strip, the abutment surface consisting of a curved surface along the concave or convex surface of the valley of the steel strip, the bolt insertion hole of the lower steel sheet, and the bolt insertion hole of the steel valley. After fitting with a pair of washers having bolt insertion holes that match the bolts and nuts through these bolt insertion holes, the upper steel plate and the peak of the steel strip are A pair of washers having an abutment surface formed of a curved surface along the convex or concave surface of the ridge, a bolt insertion hole of the upper steel plate, and a bolt insertion hole matching the bolt insertion hole of the ridge of the steel strip, sandwich the washer with the steel strip. And the bolts and nuts through these bolt insertion holes. Providing a steel-concrete composite structures characterized by.
[0008]
In the above-described concrete composite structure, the fixing of the pair of washers having the abutment surface formed of the curved surface along each of the convex surface or the concave surface of the mountain portion or the valley portion of the steel band to the mountain portion or the valley of the steel band, A pair of washers are opposed to each other with a bolt insertion hole interposed therebetween, and a protrusion formed on a side portion in a direction orthogonal to the sandwiched steel strip is joined using a stopper.
[0009]
Similarly, a pair of washers having an abutment surface formed of a curved surface along each of a convex surface or a concave surface of a peak portion or a valley portion of a strip of steel are fixed to the peak portion or the valley portion of the band steel by bolting each of the pair of washers. It is characterized in that the recess formed on the side in the direction orthogonal to the band steel sandwiched between the insertion holes and the sandwiched steel sheet is joined by using a stopper.
[0010]
Similarly, the fixing of a pair of washers having a contact surface consisting of a curved surface along the convex surface or the concave surface of the peak or valley of the steel strip to the mountain or valley of the steel band is performed by using a pair of washers. In addition to being sandwiched, a nut is attached to the outside of the washer on the convex side of the steel strip, a bolt is inserted from the outside of the washer on the concave side of the steel strip and connected, and the bolt is projected upward.
[0011]
Similarly, the fixing of a pair of washers having a contact surface consisting of a curved surface along the convex surface or the concave surface of the peak or valley of the steel strip to the mountain or valley of the steel band is performed by using a pair of washers. In addition to being inserted, a bolt is inserted from the outside of the washer on the concave side of the steel strip to protrude, and a wedge is driven into a bolt insertion hole between the bolt, the steel strip, the washer on the bolt protruding side and the bolt.
[0012]
In the above configuration, the present invention, after fixing the steel strip which is a shearing member to the lower steel sheet in advance, that is, when fixing the valley of the steel strip to the lower steel sheet, to the peak of the steel strip, respectively, a convex portion or Since the steel strip is sandwiched and fixed by a pair of washers having an abutting surface along each curved surface of the concave portion, the upper steel plate is easily attached from the outside through the respective bolt insertion holes formed in advance. be able to.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0014]
First, as shown in FIG. 1, a band steel 3 is formed at a predetermined position of a lower steel plate 1 with a valley 3 a and a ridge 3 b formed, and the valley 3 a is fixed to the lower steel plate 1. The valley 3a of the strip 3 is sandwiched by a pair of washers 4,5. As shown in FIG. 4, the washer 4 has an abutment surface 4a along the convex surface of the steel strip 3, and the washer 5 has an abutment surface 5a along the concave surface of the steel strip 3. Bolt insertion holes 1a, 3c, 4b, 5b are drilled in the valleys 3a, washers 4, 5 of the lower steel plate 1 and the strip 3 respectively. The lower steel plate 1 and the valley 3a of the steel strip 3 are fixed by bolt insertion holes 1a, 5b, 3c from the outside of the lower steel plate 1 in which the valley 3a of the steel strip 3 is sandwiched between the washers 4 and 5. , 4b, and the nut 6 is inserted.
[0015]
As shown in FIG. 2, a pair of washers 8 and 9 are fixed to the ridge 3b of the strip 3 with the ridge 3b interposed therebetween. As shown in FIG. The upper steel plate 2 is fixed to the ridge 3b of the strip 3 by the bolt 10 and the nut 11.
[0016]
Next, specific embodiments of the structure of the washers 8, 9 and the method of fixing the steel strip 3 to the ridge 3b and the method of fixing the upper steel plate 2 to the ridge 3b of the steel strip 3 will be described. .
[0017]
First, a description will be given based on FIGS.
[0018]
As shown in FIG. 5, the pair of washers 8, 9 are provided with a contact surface 8 a along the concave surface of the peak 3 b of the strip 3, and a contact surface 9 a along the convex surface of the peak 3 b, respectively. Bolt insertion holes 8b and 9b are formed to match the bolt insertion holes 3c formed in the ridges 3b. In this embodiment, a pair of washers 8, 9 are opposed to each other with bolt insertion holes 8b, 9b sandwiched therebetween, and projecting portions 12, 12, 13 are provided on both sides in a direction orthogonal to the band steel 3 inserted. , 13 are formed. A nut 11 communicating with the bolt insertion hole 8b is fixed to an end of the washer 8. In this figure, it is pressed by the cover 15.
[0019]
As shown in FIG. 6, the washers 8, 9 and the strip 3 are arranged such that the contact surface 8 a of the washer 8 contacts the concave surface of the peak 3 b of the strip 3, and the contact surface of the washer 9. 9a is abutted on the convex surface of the ridge 3b of the steel strip 3, the ridge 3b of the steel strip 3 is sandwiched, and fasteners 14 such as screws and pins are inserted into the projections 12 and 13 formed on the washers 8, 9. And fixed by
[0020]
Next, as shown in FIG. 7, the upper steel plate 2 and the ridge 3b of the steel strip 3 are connected to the bolt insertion hole 2a drilled in the upper steel plate 2, the bolt insertion hole 9b of the washer 9, and the ridge 3b of the steel strip 3. The bolt insertion hole 3c is aligned with the bolt insertion hole 8b of the washer 8, and as shown in FIG. 8, the bolt 10 is inserted from the outside of the upper steel plate 2, and the bolt 10 is inserted into the nut 11 fixed to the end of the washer 8. Screw together and fix.
[0021]
Next, another embodiment will be described with reference to FIGS.
[0022]
As shown in FIG. 9, the pair of washers 8, 9 are formed with a contact surface 8 a along the concave surface of the peak 3 b of the steel strip 3, a contact surface 9 a along the convex surface of the peak 3 b, and the steel plate 3. Bolt insertion holes 8b and 9b are formed to match the bolt insertion holes 3c formed in the ridges 3b. In this embodiment, recesses 16, 16, 17 are provided on the sides of the pair of washers 8, 9, which are opposed to each other with the bolt insertion holes 8 b, 9 b interposed therebetween and in the direction perpendicular to the banded steel 3. 17 are formed. A nut 11 communicating with the bolt insertion hole 8b is fixed to an end of the washer 8. In this figure, it is pressed by the cover 15.
[0023]
As shown in FIG. 10, the washers 8, 9 and the strip 3 are in contact with the contact surface 8 a of the washer 8 and the concave surface of the peak 3 b of the strip 3, as shown in FIG. 9a is attached to the convex surface of the ridge 3b of the steel strip 3, and the ridge of the steel strip 3 is sandwiched. The recesses 16 and 17 formed in the washers 8 and 9 are sandwiched by the stoppers 18 such as clips and burrs. And fixed by
[0024]
Then, as shown in FIG. 11, the upper steel plate 2 and the ridge 3b of the steel strip 3 are connected to the bolt insertion hole 2a drilled in the upper steel plate 2, the bolt insertion hole 9b of the washer 9, and the ridge 3b of the steel strip 3. As shown in FIG. 12, the bolt 10 is inserted from the outside of the upper steel plate 2, and the bolt 10 is screwed into the nut 11 fixed to the end of the washer 8 by matching the bolt insertion hole 3 c with the bolt insertion hole 8 b of the washer 8. Combine and fix.
[0025]
Next, still another embodiment will be described with reference to FIGS.
[0026]
As shown in FIG. 13, each of the pair of washers 8 and 9 has an abutment surface 8 a along a concave surface of the crest 3 b of the strip 3 and an abutment surface 9 a along a convex surface of the crest 3 b. Bolt insertion holes 8b and 9b are formed to match the bolt insertion holes 3c formed in the ridges 3b.
[0027]
As shown in FIG. 14, the washer 8, 9 thus formed and the strip 3 contact the contact surface 8 a of the washer 8 with the concave surface of the peak 3 b of the strip 3, and the contact surface of the washer 9. 9a is attached to the convex surface of the ridge 3b of the steel strip 3 so that the ridge 3b of the steel strip 3 is interposed therebetween, and the bolt 10 is inserted from the outside of the washer 8 into the bolt insertion holes 8b, 3c, 9b, and to the opposite side. Then, the thin nut 19 is screwed to the bolt from the projecting side and fixed.
[0028]
Then, as shown in FIG. 15, the washer 8, the crest 3 b of the steel strip 3, and the bolt 3 of the washer 9 are inserted into the bolt insertion holes 2 a formed in the upper steel sheet 2. The bolts 10 protruding through the holes 8b, 3c and 9b are inserted and, as shown in FIG.
[0029]
Next, still another embodiment will be described with reference to FIGS.
[0030]
As shown in FIG. 17, the pair of washers 8 and 9 are formed with a concave contact surface 8a of the peak 3b of the band 3 and a contact surface 9a along the convex of the peak 3b, respectively. Bolt insertion holes 8b and 9b are formed so as to match with the bolt insertion holes 3c formed in the crests 3b of No.3. Here, the outer side of the washer 9 of the bolt insertion hole formed in the washer 9 has a larger diameter by a wedge driving diameter of 20 minutes so that a wedge to be described later can be driven.
[0031]
As shown in FIG. 18, the washers 8, 9 and the strip 3 are arranged such that the contact surface 8 a of the washer 8 contacts the concave surface of the peak 3 b of the strip 3, and the contact surface of the washer 9. 9a is attached to the convex surface of the ridge 3b of the steel strip 3 so that the ridge 3b of the steel strip 3 is interposed therebetween, and the bolt 10 is inserted from the outside of the washer 8 into the bolt insertion holes 8b, 3c, 9b, and to the opposite side. Then, the wedge 20 is driven into the projecting side and fixed.
[0032]
Next, as shown in FIG. 19, the washer 8, the crest 3 b of the strip 3, and the bolt 3 of the washer 9 are inserted into the bolt insertion holes 2 a formed in the upper steel plate 2. As shown in FIG. 20, a nut 11 is attached from the outside of the upper steel plate 2 to be joined and fixed by inserting a bolt 10 protruding through the holes 8b, 3c and 9b. In addition, the bolt insertion hole 2a formed in the upper steel plate 2 is formed to have a slightly larger diameter by 20 minutes for the wedge.
[0033]
Thus, as a whole, the bolt 6 is inserted through the lower steel plate 1 and the valley portions 3a of the steel strip 3 sandwiched between the washers 4, 5 into the bolt insertion holes 1a, 4b, 3c, 5b formed respectively. Then, the upper steel plate 2 and the ridge 3b of the steel strip 3 are joined together by the nut 7, and the ridge 3b of the steel strip 3 is attached to the ridge 3b of the steel strip 3 by a curved surface along the concave or convex surface. A pair of washers 8, 9 having a contact surface 8a, 9a and a bolt insertion hole 8b, 9b that matches the bolt insertion hole 1a of the lower steel plate 1, and the washer 8, 9 is fixed to the ridge 3b of the strip 3; A steel concrete composite structure in which these bolt insertion holes 4b, 3c, 5b, and 1a are fixed with bolts 10 and nuts 11 is formed.
[0034]
【The invention's effect】
Since the present invention is configured as described above, it has the following effects.
[0035]
After joining the lower steel plate to the valley of the steel strip and fixing it, before joining the upper steel plate to the ridge of the steel strip and fixing it, a pair of washers are fixed to the ridge of the steel strip in advance, and Since the upper steel plate is fixed from the outside of the upper steel plate fixed to the hill portion by using bolts and nuts, the assembly is extremely easy.
[Brief description of the drawings]
FIG. 1 is a side view showing a state in which a valley portion of a steel strip is fixed to a lower steel plate.
FIG. 2 is a side view showing a state in which a pair of washers are fixed to a mountain portion of a steel strip in FIG.
FIG. 3 is a side view showing a state in which an upper steel plate is fixed to a ridge of a steel strip in FIG.
FIG. 4 is a detailed view of a fixing portion between a lower steel plate and a valley portion of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line XX of (a).
FIG. 5 is a construction procedure diagram showing an embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line AA of (a).
FIG. 6 is a construction procedure diagram showing an embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a BB cross-sectional view of (a).
FIG. 7 is a construction procedure diagram showing an embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line CC of (a).
FIG. 8 is a construction procedure diagram showing an embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line DD of (a).
FIG. 9 is a construction procedure diagram showing another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is an EE cross-sectional view of (a).
FIG. 10 is a construction procedure diagram showing another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line FF of (a).
FIG. 11 is a construction procedure diagram showing another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a GG sectional view of (a).
FIG. 12 is a construction procedure diagram showing another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is an HH cross-sectional view of (a).
FIG. 13 is a construction procedure diagram showing still another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line II of (a).
FIG. 14 is a construction procedure diagram showing still another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a JJ cross-sectional view of (a).
FIG. 15 is a construction procedure diagram showing still another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a KK cross-sectional view of (a).
FIG. 16 is a construction procedure diagram showing still another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is an LL cross-sectional view of (a).
FIG. 17 is a construction procedure diagram showing still another embodiment of a method of fixing the washer to the ridge of the steel strip and a method of fixing the upper steel plate to the ridge of the steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line MM of (a).
FIG. 18 is a construction procedure diagram showing still another embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is an NN cross-sectional view of (a).
FIG. 19 is a construction procedure diagram showing still another embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along line OO of (a).
FIG. 20 is a construction procedure diagram showing still another embodiment of a method of fixing a washer to a ridge of a steel strip and a method of fixing an upper steel plate to a ridge of a steel strip. In the drawings, (a) is a side view, and (b) is a cross-sectional view taken along the line PP of (a).
FIG. 21 is a sectional view showing a conventional example.
FIG. 22 is a schematic view showing a usage example.
FIG. 23 is a schematic view showing a usage example.
FIG. 24 is a schematic view showing a usage example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower steel plate 1a Bolt insertion hole 2 Upper steel plate 2a Bolt insertion hole 3 Strip steel 3a Valley 3b Crest 3c Bolt insertion hole 4 Washer 4a along convex surface of strip steel Abutment surface 4b Bolt insertion hole 5 Following concave surface of strip steel Washer 5a Attached surface 5b Bolt insertion hole 6 Bolt 7 Nut 8 Washer 8a Attached surface 8b Bolt insertion hole 9 along the concave surface of band steel 9 Washer 9a Attached surface 9b along convex surface of band steel Bolt insertion hole 10 Bolt 11 Nut 12 Projection 13 formed on washer 14 Projection 14 formed on washer Stopper 15 Cover 16 Recess 17 formed on washer 17 Depression 18 formed on washer Stopper 19 Thin nut 20 Wedge

Claims

A steel-concrete composite structure in which a plurality of strips each having a valley and a ridge formed between a lower steel sheet and an upper steel sheet are arranged and fixed at appropriate intervals, respectively, The valley portion is a valley portion of the steel strip, and an abutment surface formed of a curved surface along the concave or convex surface of the valley portion of the steel strip, a bolt insertion hole of the lower steel plate, and a bolt insertion hole matching the bolt insertion hole of the valley portion of the steel strip. After being fixed with a bolt and a nut through these bolt insertion holes while being pinched by a pair of washers having the following, the upper steel plate and the peak of the steel strip, the peak of the steel strip or the convex surface of the peak of the steel strip or A pair of washers having an abutment surface consisting of a curved surface along the concave surface, a bolt insertion hole of the upper steel plate, and a bolt insertion hole matching the bolt insertion hole of the steel strip ridge are sandwiched, and the washer is fixed to the steel strip ridge. Bolts and nuts through these bolt insertion holes. Steel concrete composite construction according to symptoms.

The fixing of a pair of washers having an abutment surface formed of a curved surface along each of the convex surface or the concave surface of the strip or the valley to the ridge or the valley of the strip is performed by inserting a bolt through hole into each of the pair of washers. The steel-concrete composite structure according to claim 1, wherein the projections formed on the sides in the direction orthogonal to the band steel sandwiched and sandwiched between the steel strips are joined using a stopper.

The fixing of a pair of washers having an abutment surface formed of a curved surface along each of the convex surface or the concave surface of the strip or the valley to the ridge or the valley of the strip is performed by inserting a bolt through hole into each of the pair of washers. The steel-concrete composite structure according to claim 1, wherein a concave portion formed on a side portion in a direction orthogonal to the band steel sandwiched and sandwiched between the steel plates is joined using a stopper.

The fixing of the pair of washers having the abutment surface formed of the curved surface along the convex surface or the concave surface of the peak or valley of the strip to the peak or valley of the band, sandwiches the band with the pair of washers. The steel-concrete composite structure according to claim 1, wherein a nut is attached to the outside of the washer on the convex side of the steel strip, a bolt is inserted from the outside of the washer on the concave side of the steel strip, and the bolt is projected upward. object.

The fixing of the pair of washers having the abutment surface formed of the curved surface along the convex surface or the concave surface of the peak or valley of the strip to the peak or valley of the band, sandwiches the band with the pair of washers. 2. The steel according to claim 1, wherein a bolt is inserted from the outside of the washer on the concave side of the strip steel to protrude, and a wedge is driven into a bolt insertion hole between the bolt, the strip, the washer on the bolt protruding side, and the bolt. Concrete composite structure.