JP4282847B2 - Seat plate installation structure and floor plate installation method - Google Patents

Seat plate installation structure and floor plate installation method Download PDF

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Publication number
JP4282847B2
JP4282847B2 JP30775799A JP30775799A JP4282847B2 JP 4282847 B2 JP4282847 B2 JP 4282847B2 JP 30775799 A JP30775799 A JP 30775799A JP 30775799 A JP30775799 A JP 30775799A JP 4282847 B2 JP4282847 B2 JP 4282847B2
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seat plate
female screw
screw hole
unit seat
concrete
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JP2001124290A (en
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利秋 田平
尚史 伊藤
達伸 梶原
雄幸 菅野
繁 佐藤
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Takada Corp
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Takada Corp
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【０００１】
【発明の属する技術分野】
本発明は、コンクリートで打設されて形成される機器据付用床面のレベル調整のために床面となる領域に設置される座板の設置構造およびレベル調整用の座板が設けられた座板設置床構造の施工方法に関する。
【０００２】
【従来の技術】
機器の据え付け基礎となる床面をコンクリートを打設して形成する場合に、床面の水平度を出すために座板を設置することが行われている。
すなわち、従来における座板が設置される床面では、例えば、図１０の（ａ）（ｂ）に示すように、コンクリート１が打設される前に、アンカーボルト２が床面３となる領域に立設状態に複数配筋され、これらアンカーボルト２の先端に一枚の座板４が水平状態にボルト５で所定高さに設置される。
この後、コンクリート１が座板４の下面まで打設されて床面３が形成される。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の座板設置手段には、以下のような課題が残されている。すなわち、立設状態に配筋されたアンカーボルト２がコンクリート１の打設によって傾倒してしまい、その上部に設置された座板４が全体的に傾いてしまって高精度な水平度を得ることができなかった。このため、機器を据え付ける前に、座板４と機器の底面との間に所定厚さのライナーを挟み込んでライナー調整を行う必要があり、据付作業に手間がかかり、作業効率を低下させる要因となっていた。
【０００４】
本発明は、前述の課題に鑑みてなされたもので、コンクリートの打設により形成される床面のレベル調整を高精度で行うことができ、機器の据え付け作業の効率を向上させることができる座板の設置構造および座板設置床構造の施工方法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明は、前記課題を解決するために以下の構成を採用した。すなわち、請求項１記載の座板の設置構造では、コンクリートが打設されて形成される床面のレベル調整をするために床面となる領域に設置される座板の設置構造であって、先端部に雄螺子部を形成した基礎ボルトが、前記床面となる領域内の複数箇所に垂直に立設され、前記座板は、少なくとも下部に取付用雌螺子孔を形成した複数の単位座板で構成され、前記単位座板は、前記取付用雌螺子孔を前記雄螺子部に螺合させて上下動可能に前記複数の基礎ボルトにそれぞれ取り付けられ、前記単位座板の上部には前記取付用雌螺子と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間は、該両孔を連通させない壁部が形成され、さらに複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と打設された前記コンクリートの上面をそれぞれ被膜するライニング板を敷設して前記床面が形成される技術が採用される。
【０００６】
また、請求項２記載の座板設置床構造の施工方法では、レベル調整用の座板が設けられた座板設置床構造の施工方法であって、先端部に雄螺子部が形成された基礎ボルトを、所定の複数箇所に垂直に立設するボルト設置工程と、少なくとも下部に取付用雌螺子孔が形成されるとともに上部に該取付用雌螺子孔と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間に、該両雌螺子孔を連通させない壁部が形成された複数の単位座板を、前記雄螺子部に前記取付用雌螺子孔を螺合させて前記基礎ボルトにそれぞれ取り付ける単位座板取付工程と、前記単位座板と前記基礎ボルトとの周囲に、単位座板の上面を露出させた状態でコンクリートを打設するコンクリート打設工程とを備え、該コンクリート打設工程は、前記単位座板の下部近傍までコンクリートを打設する一次打設工程と、一次打設工程の後、前記単位座板を回転させて上下動させ高さ調整を行うレベル調整工程と、該レベル調整工程の後、前記単位座板の周囲までコンクリートを打設する二次打設工程と、複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と二次打設工程で打設された前記コンクリートの上面をそれぞれ被膜するライニング板を敷設する工程を備えている技術が採用される。
【０００７】
この座板の設置構造および座板設置床構造の施工方法では、前記座板が、少なくとも下部に取付用雌螺子孔を形成した複数の単位座板で構成され、単位座板が、取付用雌螺子孔を基礎ボルトの雄螺子部に螺合させて上下動可能に複数の基礎ボルトにそれぞれ取り付けられているので、各単位座板において個別に高さ調整を行うことができる。そして、コンクリートを打設する際に、一旦、単位座板の下部近傍までコンクリートを打設し、単位座板を回転させて上下動させることにより、全体としての座板のレベルを再調整し、さらにこの後、再び単位座板の周囲までコンクリートを打設することにより、ライナー調整によらずとも基礎ボルトのゆがみによって生じた座板の傾きを矯正することができる。
また、単位座板の上部に機器を取り付けるための機器固定用雌螺子孔が形成され、機器固定用雌螺子孔が、取付用雌螺子孔と同軸に設定されているので、単位座板に機器を直接据え付けることができるとともに、単位座板を回転させて高さ調整した後も機器固定用雌螺子孔の位置が横方向にずれず、正確に機器を据え付けることができる。
さらに、取付用雌螺子孔と機器固定用雌螺子孔との間には、両孔を連通させない壁部が形成されているので、単位座板上の流体が機器固定用雌螺子孔に侵入しても単位座板下部のコンクリートに浸透することがない。
【０００９】
また、請求項３記載の座板設置床構造の施工方法では、レベル調整用の座板が設けられた座板設置床構造の施工方法であって、先端部に雄螺子部が形成された基礎ボルトを、所定の複数箇所に垂直に立設するボルト設置工程と、少なくとも下部に取付用雌螺子孔が形成されるとともに上部に該取付用雌螺子孔と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間に、該両雌螺子孔を連通させない壁部が形成された複数の単位座板を、前記雄螺子部に前記取付用雌螺子孔を螺合させて前記基礎ボルトにそれぞれ取り付ける単位座板取付工程と、前記単位座板に、その外周面を覆って、人力で破壊可能な低強度材料で形成された環状のスペーサを取り付けるスペーサ取付工程と、前記スペーサを取り付けた前記単位座板と前記基礎ボルトとの周囲に、前記単位座板の上面を露出させた状態でコンクリートを打設するコンクリート打設工程と、該コンクリート打設工程の後、前記スペーサを破壊するとともに、前記単位座板を回転させて上下動させ高さ調整を行うレベル調整工程と、該レベル調整工程の後に、前記スペーサを破壊し取り除いた空間に前記単位座板の周囲をモルタルにて充填するモルタル充填工程と、該モルタル充填工程の後に、複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と打設された前記コンクリートの上面と充填された前記モルタルの上面をそれぞれ被膜するライニング板を敷設する工程とを備えている技術が採用される。
【００１０】
この座板設置床構造の施工方法では、人力で破壊可能な低強度材料で形成された環状のスペーサが、単位座板の外周面を覆って取り付けられているので、コンクリートを全て打設した後に、スペーサを破壊することにより単位座板の周囲に空間を形成し、単位座板を回転操作することが可能になり、容易に単位座板を上下させることができる。すなわち、コンクリートを打設する際に、単位座板の下部近傍で一旦打設を中断しなくても、一度に単位座板の上面のレベルまで打設した後に単位座板の高さ調整が可能であり、打設工程を２つに分ける必要がない。
【００１５】
【発明の実施の形態】
以下、本発明に係る座板の配置構造および座板配置床構造の施工方法の第１実施形態を図１から図５を参照しながら説明する。
これらの図にあって、符号１１はアンカーボルト、１２は単位座板を示している。
【００１６】
〔アンカーボルト配筋工程〕
まず、図１の（ａ）（ｂ）に示すように、床面となる領域Ａ内の複数箇所に垂直にアンカーボルト（基礎ボルト）１１を立設する。
該アンカーボルト１１は、その先端部分に雄螺子部１１ａが形成されている。
本実施形態では、アンカーボルト１１が八角形の領域Ａ内に円周上に並べられる。
【００１７】
〔単位座板取付工程〕
この後、図２の（ａ）（ｂ）に示すように、配筋された各アンカーボルト１１の先端部分に単位座板１２を取り付ける。これら単位座板１２は、全体として一つの座板を構成する。
前記単位座板１２は、円筒状本体１２ａと、その上部に形成され円筒状本体１２ａより大径な円板部１２ｂとからなり、その下部には、雄螺子部１１ａに螺合可能な取付用雌螺子孔１２ｃが上下に貫通状態に形成されている。
【００１８】
すなわち、円板部１２ｂを上方に向けた状態で単位座板１２の取付用雌螺子孔１２ｃを、雄螺子部１１ａに螺合させ、アンカーボルト１１に単位座板１２を取り付ける。
このとき、各単位座板１２を回転操作することによって上下に動かし、高さ調整を行うことにより、座板全体としてのレベル調整を行う。
【００１９】
〔一次打設工程〕
各単位座板１２の高さ調整を行った後、図３の（ａ）（ｂ）に示すように、領域Ａに一次コンクリート１３を打設する。
このとき、一次コンクリート１３は、単位座板１２の下部近傍の所定高さ（以下、基準線Ｂという）まで打設するものとし、単位座板１２が上下動可能なスペースを確保しておく。
【００２０】
〔レベル調整工程〕
一次コンクリート１３の打設後、単位座板１２を回すことにより、基準線Ｂに対して各単位座板１２の上面レベルを再調整する。これによって、座板全体としての再レベル調整が行われる。
【００２１】
〔二次打設工程〕
さらに、一次コンクリート１３の上に、図４の（ａ）（ｂ）に示すように、二次コンクリート１４を打設する。
このとき、二次コンクリート１４は、単位座板１２の上面が露出した状態で床面１５の所定高さ、すなわち単位座板１２の周囲まで打設する。
この後、二次コンクリート１４の表面に被膜としてライニング板１６を敷設して床面１５を形成する。
【００２２】
〔機器据え付け工程〕
コンクリートの養生期間を経て床面１５上に機器１７を搬入するとともに、図５に示すように、各単位座板１２の取付用雌螺子孔（機器固定用雌螺子孔）１２ｃに上部から機器１７の据付用ボルト１８を螺合させることにより、当該機器１７を単位座板１２および床面１５に据え付け固定する。
【００２３】
この座板の設置構造および座板設置床構造の施工方法では、座板が、下部に取付用雌螺子孔１２ｃを形成した複数の単位座板１２で構成され、単位座板１２が、取付用雌螺子孔１２ｃをアンカーボルト１１の雄螺子部１１ａに螺合させて上下動可能に複数のアンカーボルト１１にそれぞれ取り付けられているので、各単位座板１２において個別に高さ調整を行うことができ、座板全体として高精度なレベル調整が可能となる。
【００２４】
また、コンクリートを打設する際に、一旦、単位座板１２の下部近傍における基準線Ｂまで一次コンクリート１３を打設し、単位座板１２を回転させて上下動させることにより、全体としての座板のレベルを再調整し、さらにこの後、再び単位座板１２の周囲まで二次コンクリート１４を打設することにより、ライナー調整によらずともアンカーボルト１１のゆがみによって生じた座板の傾きを矯正することができる。
【００２５】
次に、本発明に係る座板の配置構造および座板配置床構造の施工方法の第２実施形態を図６から図９を参照しながら説明する。
これらの図にあって、符号２０はスペーサ、２１は単位座板を示している。
【００２６】
第２実施形態と第１実施形態との異なる点は、第１実施形態では、レベル調整のために一次打設工程と二次打設工程の２度の打設を行うのに対し、第２実施形態では、図６の（ａ）（ｂ）に示すようなスペーサ２０を用いることにより、コンクリートを一度に打設してしまった後にレベル調整を行う点である。
以下に、第１実施形態と同様であるアンカーボルト配筋工程以降の各工程について詳述する。
【００２７】
〔スペーサ取付工程〕
アンカーボルト１１に取り付ける単位座板２１には、その外周面を覆って、人力で破壊可能な低強度材料、例えば発泡スチロールで形成された環状のスペーサ２０を予めはめ込んで取り付けておく。
該スペーサ２０は、内周面の断面形状が段部状とされ、単位座板２１の円板部２１ｂおよび円筒状本体２１ａの両外周面に当接するような形状とされている。
【００２８】
また、前記単位座板２１は、円筒状本体２１ａと円板部２１ｂとから構成され、下部に軸線を同じくした取付用雌螺子孔２１ｃが形成されるとともに、該取付用雌螺子孔２１ｃと同軸に設定された機器固定用雌螺子孔２１ｄが上部に形成され、取付用雌螺子孔２１ｃと機器固定用雌螺子孔２１ｄとの間には、両孔を連通させない壁部２１ｅが形成されている。
【００２９】
〔単位座板取付工程〕
第１実施形態と同様な〔アンカーボルト配筋工程〕の後、図６の（ａ）（ｂ）に示すように、配筋された各アンカーボルト１１の先端部分にスペーサ２０を取り付けた単位座板２１を取り付ける。
すなわち、円板部２１ｂを上方に向けた状態で単位座板２１の取付用雌螺子孔２１ｃを、雄螺子部１ａに螺合させることにより、アンカーボルト１１に単位座板２１を取り付ける。
このとき、各単位座板２１をスペーサ２０とともに回転操作することによって上下に動かし、高さ調整を行うことにより、座板全体としてのレベル調整を行う。
【００３０】
〔コンクリート打設工程〕
各単位座板２１の高さ調整を行った後、図７の（ａ）（ｂ）に示すように、領域Ａにコンクリート２２を打設する。
このとき、コンクリート２２は、単位座板２１の上面を露出させた状態で床面２５の所定高さ、すなわち単位座板２１に取り付けられたスペーサ２０の周囲まで打設する。
【００３１】
〔レベル調整工程〕
コンクリート２２の打設後、図８の（ａ）（ｂ）に示すように、スペーサ２０を破壊して取り除くとともに、これによって単位座板２１の周囲に空間Ｋを形成し、単位座板２１を回転操作することによって上下させ、単位座板２１の上面レベルを再調整する。これによって、座板全体としての再レベル調整が行われる。
なお、このレベル調整後、図９に示すように、空間ＫをモルタルＭ（ノンシュリンク）にて充填する。
この後、コンクリート２２の表面に被膜としてライニング板６を敷設して床面２５を形成する。
【００３２】
〔機器据え付け工程〕
コンクリートの養生期間を経て床面２５上に機器１７を搬入するとともに、図９に示すように、各単位座板２１の機器固定用雌螺子孔２１ｄに上部から機器１７の据付用ボルト１８を螺合させることにより、当該機器１７を単位座板２１および床面２５に据え付け固定する。
【００３３】
この座板の設置構造および座板設置床構造の施工方法では、人力で破壊可能な低強度材料で形成された環状のスペーサ２０が、単位座板２１の外周面を覆って取り付けられているので、コンクリート２２を打設した後に、スペーサ２０を破壊することにより単位座板２１の周囲に空間Ｋを形成し、単位座板２１を回転操作することが可能になり、容易に単位座板２１を上下させることができる。
すなわち、第１実施形態のように、コンクリートを打設する際に、単位座板の下部近傍で一旦打設を中断しなくても、一度に単位座板２１の上面のレベルまで打設した後に単位座板２１の再度の高さ調整が可能であり、打設工程を２つに分ける必要がない。
【００３４】
また、この座板の設置構造では、取付用雌螺子孔２１ｃと機器固定用雌螺子孔２１ｄとの間には、両孔を連通させない壁部２１ｅが形成されているので、単位座板２１上の流体が機器固定用雌螺子孔２１ｄに侵入しても、壁部２１ｅによって遮断され単位座板２１下部のコンクリート２２に浸透することがない。
例えば、放射性流体である放射性廃液を取り扱う機器を据え付けた場合でも、たとえ放射性廃液が単位座板２１の機器固定用雌螺子孔２１ｄに侵入しても基礎のコンクリート２２を汚染することはない。
【００３５】
【発明の効果】
本発明によれば、以下の効果を奏する。
（１）請求項１記載の座板の設置構造および請求項２記載の座板設置床構造の施工方法によれば、座板が、少なくとも下部に取付用雌螺子孔を形成した複数の単位座板で構成され、単位座板が、取付用雌螺子孔を基礎ボルトの雄螺子部に螺合させて上下動可能に複数の基礎ボルトにそれぞれ取り付けられているので、各単位座板において個別に高さ調整を行うことができ、座板全体として高精度なレベル調整を行うことができる。そして、コンクリートを打設する際に、一旦、単位座板の下部近傍までコンクリートを打設し、単位座板を回転させてレベルを再調整することにより、ライナー調整によらずとも基礎ボルトのゆがみによって生じた座板の傾きを矯正することができ、高い据付精度をもって機器の据え付け作業の効率を向上させることができる。
また、単位座板の上部に機器を取り付けるための機器固定用雌螺子孔が形成され、機器固定用雌螺子孔が、取付用雌螺子孔と同軸に設定されているので、単位座板に機器を直接据え付けることができるとともに、単位座板を回転させて高さ調整した後も機器固定用雌螺子孔の位置が横方向にずれず、正確に機器を据え付けることができる。
さらに、取付用雌螺子孔と機器固定用雌螺子孔との間には、両孔を連通させない壁部が形成されているので、単位座板上の流体が機器固定用雌螺子孔に侵入しても、単位座板下部のコンクリートへの浸透を防ぐことができる。
【００３６】
（２）請求項３記載の座板設置床構造の施工方法によれば、人力で破壊可能な低強度材料で形成された環状のスペーサが、単位座板の外周面を覆って取り付けられているので、コンクリートを全て打設した後でも、スペーサを破壊することにより単位座板を回転操作することが可能になり、コンクリートの打設工程を途中で中断しなくても容易に単位座板を上下動させることができ、工程の短縮化を図ることができる。
【図面の簡単な説明】
【図１】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第１実施形態におけるアンカーボルト配筋工程を示す上面図および要部断面図である。
【図２】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第１実施形態における単位座板取付工程を示す上面図および要部断面図である。
【図３】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第１実施形態における一次打設工程およびレベル調整工程を示す上面図および要部断面図である。
【図４】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第１実施形態における二次打設工程を示す上面図および要部断面図である。
【図５】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第１実施形態における機器据え付け工程を示す要部断面図である。
【図６】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第２実施形態における単位座板取付工程を示す上面図および要部断面図である。
【図７】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第２実施形態におけるコンクリート打設工程を示す上面図および要部断面図である。
【図８】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第２実施形態におけるレベル調整工程を示す上面図および要部断面図である。
【図９】 本発明に係る座板の設置構造および座板設置床構造の施工方法の第２実施形態における機器据え付け工程を示す要部断面図である。
【図１０】 本発明に係る座板の設置構造および座板設置床構造の施工方法の従来例を示す上面図および要部断面図である。
【符号の説明】
１１ アンカーボルト（基礎ボルト）
１１ａ 雄螺子部
１２，２１ 単位座板
１２ｃ 取付用雌螺子孔（機器固定用雌螺子孔）
１３ 一次コンクリート
１４ 二次コンクリート
１５ 床面
２０ スペーサ
２１ｃ 取付用雌螺子孔
２１ｄ 機器固定用雌螺子孔
２１ｅ 壁部
２２ コンクリート
Ａ 床面となる領域[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an installation structure of a seat plate installed in an area to be a floor surface for level adjustment of a floor surface for equipment installation formed by placing with concrete, and a seat provided with a seat plate for level adjustment. It is related with the construction method of a board installation floor structure.
[0002]
[Prior art]
In the case of forming a floor surface as a foundation for installation of equipment by placing concrete, a seat plate is installed in order to obtain a level of the floor surface.
That is, in the floor surface on which the conventional seat plate is installed, for example, as shown in FIGS. 10A and 10B, the area where the anchor bolt 2 becomes the floor surface 3 before the concrete 1 is placed. A plurality of reinforcing bars are arranged in a standing state, and a single seat plate 4 is installed at a predetermined height with bolts 5 in a horizontal state at the tips of the anchor bolts 2.
Thereafter, the concrete 1 is driven to the lower surface of the seat plate 4 to form the floor surface 3.
[0003]
[Problems to be solved by the invention]
However, the following problems remain in the conventional seat plate installation means. That is, the anchor bolts 2 arranged in the standing state are tilted by the placement of the concrete 1, and the seat plate 4 installed on the top is tilted as a whole to obtain a highly accurate level. I could not. For this reason, before installing the equipment, it is necessary to adjust the liner by inserting a liner having a predetermined thickness between the seat plate 4 and the bottom surface of the equipment, which takes time for installation work and reduces work efficiency. It was.
[0004]
The present invention has been made in view of the above-described problems, and can adjust the level of a floor surface formed by placing concrete with high accuracy and improve the efficiency of equipment installation work. It aims at providing the installation method of a board installation structure and a seat board installation floor structure.
[0005]
[Means for Solving the Problems]
The present invention employs the following configuration in order to solve the above problems. That is, in the seat plate installation structure according to claim 1, the seat plate installation structure is installed in an area to be a floor surface in order to adjust the level of the floor surface formed by placing concrete, A plurality of unit seats in which a foundation bolt having a male screw portion formed at the tip is vertically erected at a plurality of locations in the area to be the floor surface, and the seat plate has at least a lower portion formed with a female screw hole for attachment. consists of a plate, the unit seat plate, the mounting female screw hole is screwed to the male screw portion attached respectively to the vertically movable with said plurality of foundation bolts, said the upper part of the unit seat plate A female screw hole for fixing the device is formed coaxially with the female screw for mounting, and a wall portion is formed between the female screw hole for mounting and the female screw hole for fixing the device so as not to communicate the two holes. The cylindrical body formed on the cylindrical body of the unit seat plate Ri large diameter disk portion of the top surface and Da設been said concrete top a technique the floor laying the lining plate to coat each Ru is formed of is employed.
[0006]
Moreover, in the construction method of the seat board installation floor structure of Claim 2, it is a construction method of the seat board installation floor structure in which the seat board for level adjustment was provided, Comprising: The foundation by which the external thread part was formed in the front-end | tip part Bolt installation process for vertically setting the bolt vertically at a plurality of predetermined positions, and a female screw hole for attachment is formed at least in the lower part, and a female screw hole for fixing the device is formed in the upper part coaxially with the female screw hole for attachment A plurality of unit seat plates in which a wall portion that does not allow the female screw holes to communicate with each other is formed between the female screw hole for attachment and the female screw hole for fixing the device . A unit seat plate mounting step in which a female screw hole is screwed and attached to the foundation bolt, and concrete is placed around the unit seat plate and the foundation bolt with the upper surface of the unit seat plate exposed. A concrete placing process, and the concrete placing The primary placement step of placing concrete to the vicinity of the lower portion of the unit seat plate, the level adjustment step of adjusting the height by rotating the unit seat plate up and down after the primary placement step, After the level adjustment step, a secondary placement step of placing concrete to the periphery of the unit seat plate, and a circle formed on the upper portion of the cylindrical body of the unit seat plate and having a larger diameter than the cylindrical body. A technique including a step of laying a lining plate that coats the upper surface of the plate portion and the upper surface of the concrete placed in the secondary placement step is employed.
[0007]
In the construction method of the seat plate installation structure and the seat plate installation floor structure, the seat plate is composed of a plurality of unit seat plates in which female screw holes for attachment are formed at least in the lower part, and the unit seat plate is a female female for attachment. Since the screw hole is screwed to the male screw portion of the foundation bolt and attached to the plurality of foundation bolts so as to be movable up and down, the height of each unit seat plate can be adjusted individually. And when placing concrete, once the concrete is placed near the lower part of the unit seat plate, by rotating the unit seat plate up and down, the level of the seat plate as a whole is readjusted, Furthermore, after that, by placing concrete again around the unit seat plate, the inclination of the seat plate caused by the distortion of the foundation bolt can be corrected without adjusting the liner.
Also, a device fixing female screw hole for mounting the device is formed on the upper part of the unit seat plate, and the device fixing female screw hole is set coaxially with the mounting female screw hole. The device fixing female screw hole does not shift in the lateral direction even after the height of the unit seat plate is adjusted by rotating the unit seat plate, and the device can be installed accurately.
Furthermore, since a wall portion that does not allow the holes to communicate with each other is formed between the mounting female screw hole and the device fixing female screw hole, the fluid on the unit seat plate enters the device fixing female screw hole. However, it does not penetrate into the concrete below the unit seat plate.
[0009]
Moreover, in the construction method of the seat board installation floor structure of Claim 3, it is a construction method of the seat board installation floor structure in which the seat board for level adjustment was provided, Comprising: The foundation by which the external thread part was formed in the front-end | tip part Bolt installation process for vertically setting the bolt vertically at a plurality of predetermined positions, and a female screw hole for attachment is formed at least in the lower part, and a female screw hole for fixing the device is formed in the upper part coaxially with the female screw hole for attachment A plurality of unit seat plates in which a wall portion that does not allow the female screw holes to communicate with each other is formed between the female screw hole for attachment and the female screw hole for fixing the device . A unit seat plate mounting step in which a female screw hole is screwed and attached to each of the foundation bolts, and an annular spacer formed of a low-strength material that can be broken manually by covering the outer periphery of the unit seat plate. Mounting spacer mounting process and mounting the spacer Around the said foundation bolt as the unit seat plate, and concreting step of pouring concrete in a state of exposing the upper surface of the unit seat plate, after about the concrete設工, with destroying the spacer A level adjusting step of adjusting the height by rotating the unit seat plate and moving it up and down , and filling the space around the unit seat plate with mortar in the space where the spacer is destroyed and removed after the level adjusting step. A mortar filling step, and after the mortar filling step, an upper surface of a disk portion formed on an upper portion of a cylindrical body of the plurality of unit seat plates and having a larger diameter than the cylindrical body, and an upper surface of the concrete placed And a step of laying a lining plate that coats the upper surface of the filled mortar .
[0010]
In the construction method of this floor structure, the annular spacer made of a low-strength material that can be broken by human power is attached so as to cover the outer peripheral surface of the unit seat board. By breaking the spacer, a space is formed around the unit seat plate, the unit seat plate can be rotated, and the unit seat plate can be easily moved up and down. In other words, when placing concrete, it is possible to adjust the height of the unit seat plate after placing it up to the level of the upper surface of the unit seat plate at once, without interrupting the placement once near the lower part of the unit seat plate. Therefore, it is not necessary to divide the placing process into two.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a first embodiment of a seating board arrangement structure and a seating board arrangement floor structure construction method according to the present invention will be described with reference to FIGS. 1 to 5.
In these drawings, reference numeral 11 denotes an anchor bolt, and 12 denotes a unit seat plate.
[0016]
[Anchor bolt reinforcement process]
First, as shown in FIGS. 1 (a) and 1 (b), anchor bolts (foundation bolts) 11 are erected vertically at a plurality of locations in a region A serving as a floor surface.
The anchor bolt 11 is formed with a male screw portion 11a at the tip.
In the present embodiment, the anchor bolts 11 are arranged on the circumference in the octagonal region A.
[0017]
[Unit seating process]
Thereafter, as shown in FIGS. 2A and 2B, the unit seat plate 12 is attached to the tip end portion of each anchor bolt 11 that is arranged. These unit seat plates 12 constitute one seat plate as a whole.
The unit seat plate 12 includes a cylindrical main body 12a and a disk portion 12b formed on the upper portion and having a larger diameter than the cylindrical main body 12a. A female screw hole 12c is formed in a vertically penetrating manner.
[0018]
That is, the female screw hole 12c for attachment of the unit seat plate 12 is screwed into the male screw portion 11a with the disk portion 12b facing upward, and the unit seat plate 12 is attached to the anchor bolt 11.
At this time, each unit seat 12 is rotated and moved up and down to adjust the height, thereby adjusting the level of the entire seat.
[0019]
[Primary placement process]
After adjusting the height of each unit seat 12, the primary concrete 13 is placed in the region A as shown in FIGS.
At this time, the primary concrete 13 is placed up to a predetermined height (hereinafter referred to as a reference line B) near the lower portion of the unit seat plate 12, and a space in which the unit seat plate 12 can move up and down is secured.
[0020]
[Level adjustment process]
After placing the primary concrete 13, the upper surface level of each unit seat 12 is readjusted with respect to the reference line B by turning the unit seat 12. As a result, the re-level adjustment of the entire seat plate is performed.
[0021]
[Secondary placement process]
Further, as shown in FIGS. 4A and 4B, the secondary concrete 14 is placed on the primary concrete 13.
At this time, the secondary concrete 14 is placed up to a predetermined height of the floor surface 15, that is, around the unit seat plate 12 with the upper surface of the unit seat plate 12 exposed.
Thereafter, a lining plate 16 is laid as a coating on the surface of the secondary concrete 14 to form the floor 15.
[0022]
[Equipment installation process]
The equipment 17 is carried onto the floor 15 through the curing period of the concrete, and as shown in FIG. 5, the equipment 17 is attached to the female screw holes (female screw holes for fixing the equipment) 12 c of the unit seat plates 12 from above. The device 17 is fixedly mounted on the unit seat plate 12 and the floor surface 15 by screwing the mounting bolts 18.
[0023]
In the construction method of the seat plate installation structure and the seat plate installation floor structure, the seat plate is composed of a plurality of unit seat plates 12 in which female screw holes 12c for attachment are formed in the lower portion, and the unit seat plate 12 is for installation. Since the female screw holes 12c are screwed into the male screw portions 11a of the anchor bolts 11 and are respectively attached to the plurality of anchor bolts 11 so as to be movable up and down, the height of each unit seat 12 can be adjusted individually. It is possible to adjust the level of the seat plate as a whole with high accuracy.
[0024]
Further, when placing concrete, the primary concrete 13 is once placed up to the reference line B in the vicinity of the lower portion of the unit seat plate 12, and the unit seat plate 12 is rotated and moved up and down to thereby make the seat as a whole. By re-adjusting the level of the plate, and then placing the secondary concrete 14 around the unit seat plate 12 again, the inclination of the seat plate caused by the distortion of the anchor bolt 11 can be achieved regardless of the liner adjustment. It can be corrected.
[0025]
Next, a second embodiment of the construction method of the seat board arrangement structure and the seat board arrangement floor structure according to the present invention will be described with reference to FIGS.
In these drawings, reference numeral 20 denotes a spacer, and 21 denotes a unit seat plate.
[0026]
The difference between the second embodiment and the first embodiment is that, in the first embodiment, the primary placement process and the secondary placement process are performed twice for level adjustment, whereas the second embodiment is different from the second embodiment. In the embodiment, by using the spacer 20 as shown in FIGS. 6A and 6B, the level adjustment is performed after concrete has been placed at once.
Below, each process after the anchor bolt arrangement process similar to 1st Embodiment is explained in full detail.
[0027]
[Spacer mounting process]
An annular spacer 20 formed of a low-strength material that can be broken by human power, for example, styrene foam, is fitted into the unit seat plate 21 attached to the anchor bolt 11 in advance so as to cover its outer peripheral surface.
The spacer 20 has a step-like cross section on the inner peripheral surface, and is shaped so as to be in contact with both the outer peripheral surfaces of the disk portion 21b of the unit seat plate 21 and the cylindrical main body 21a.
[0028]
The unit seat plate 21 includes a cylindrical main body 21a and a disc portion 21b. A lower female screw hole 21c having the same axis is formed in the lower portion, and is coaxial with the female screw hole 21c. An apparatus fixing female screw hole 21d set in the above is formed in the upper part, and a wall portion 21e that does not allow the holes to communicate is formed between the mounting female screw hole 21c and the apparatus fixing female screw hole 21d. .
[0029]
[Unit seating process]
After the [anchor bolt arranging step] similar to the first embodiment, as shown in FIGS. 6A and 6B, the unit seat in which the spacer 20 is attached to the tip end portion of each anchor bolt 11 that has been arranged. A plate 21 is attached.
That is, the unit seat plate 21 is attached to the anchor bolt 11 by screwing the mounting female screw hole 21c of the unit seat plate 21 into the male screw portion 1a with the disc portion 21b facing upward.
At this time, each unit seat plate 21 is moved up and down by rotating the spacer 20 together with the spacer 20, and the height is adjusted to adjust the level of the entire seat plate.
[0030]
[Concrete placing process]
After adjusting the height of each unit seat plate 21, the concrete 22 is placed in the region A as shown in FIGS.
At this time, the concrete 22 is placed to a predetermined height of the floor surface 25, that is, around the spacer 20 attached to the unit seat plate 21 with the upper surface of the unit seat plate 21 exposed.
[0031]
[Level adjustment process]
After placing the concrete 22, as shown in FIGS. 8 (a) and 8 (b), the spacer 20 is destroyed and removed, thereby forming a space K around the unit seat plate 21, and the unit seat plate 21 is removed. By rotating and moving up and down, the upper surface level of the unit seat plate 21 is readjusted. As a result, the re-level adjustment of the entire seat plate is performed.
After this level adjustment, the space K is filled with mortar M (non-shrink) as shown in FIG.
Thereafter, the lining plate 6 is laid as a coating on the surface of the concrete 22 to form the floor surface 25.
[0032]
[Equipment installation process]
The equipment 17 is carried onto the floor surface 25 through a concrete curing period, and the installation bolts 18 of the equipment 17 are screwed into the equipment fixing female screw holes 21d of the unit seat plates 21 from above as shown in FIG. By combining them, the device 17 is installed and fixed to the unit seat plate 21 and the floor surface 25.
[0033]
In the construction method of the seat plate installation structure and the seat plate installation floor structure, the annular spacer 20 formed of a low-strength material that can be broken by human power is attached so as to cover the outer peripheral surface of the unit seat plate 21. Then, after placing the concrete 22, the space 20 is formed around the unit seat plate 21 by breaking the spacer 20, and the unit seat plate 21 can be rotated. Can be moved up and down.
That is, after placing the concrete up to the level of the upper surface of the unit seat plate 21 without placing the placement once in the vicinity of the lower portion of the unit seat plate when placing concrete as in the first embodiment. The height of the unit seat plate 21 can be adjusted again, and there is no need to divide the placing process into two.
[0034]
Further, in this seat plate installation structure, a wall portion 21e is formed between the mounting female screw hole 21c and the device fixing female screw hole 21d so as not to allow the holes to communicate with each other. Even if the fluid enters the female fixing screw hole 21d, it is blocked by the wall portion 21e and does not penetrate into the concrete 22 below the unit seat plate 21.
For example, even when a device that handles radioactive liquid waste, which is a radioactive fluid, is installed, even if the radioactive liquid waste enters the device fixing female screw hole 21d of the unit seat plate 21, the foundation concrete 22 is not contaminated.
[0035]
【The invention's effect】
The present invention has the following effects.
(1) According to the installation method of the seat plate installation structure according to claim 1 and the seat plate installation floor structure according to claim 2 , the seat plate has a plurality of unit seats in which a female screw hole for attachment is formed at least in the lower part. Each unit seat plate is individually mounted on each unit seat plate so that the unit seat plate can be moved up and down by screwing the female screw hole for mounting to the male screw portion of the foundation bolt. Height adjustment can be performed, and highly accurate level adjustment can be performed for the entire seat plate. Then, when placing concrete, once the concrete is placed near the bottom of the unit seat plate, the unit seat plate is rotated and the level is readjusted, so that the foundation bolt is distorted regardless of the liner adjustment. It is possible to correct the inclination of the seat plate caused by the above, and to improve the efficiency of equipment installation work with high installation accuracy.
Also, a device fixing female screw hole for mounting the device is formed on the upper part of the unit seat plate, and the device fixing female screw hole is set coaxially with the mounting female screw hole. The device fixing female screw hole does not shift in the lateral direction even after the height of the unit seat plate is adjusted by rotating the unit seat plate, and the device can be installed accurately.
Furthermore, since a wall portion that does not allow the holes to communicate with each other is formed between the mounting female screw hole and the device fixing female screw hole, the fluid on the unit seat plate enters the device fixing female screw hole. However, it is possible to prevent the penetration of the lower part of the unit seat plate into the concrete.
[0036]
(2) According to the construction method of the seat board installation floor structure of the third aspect, the annular spacer formed of a low strength material that can be broken by human power is attached so as to cover the outer peripheral surface of the unit seat board. Therefore, even after all the concrete has been placed, it is possible to rotate the unit seat plate by destroying the spacer, and the unit seat plate can be easily moved up and down without interrupting the concrete placing process. The process can be shortened.
[Brief description of the drawings]
FIGS. 1A and 1B are a top view and a cross-sectional view of an essential part showing an anchor bolt arranging step in a first embodiment of a seat board installation structure and a seat board installation floor structure construction method according to the present invention.
FIGS. 2A and 2B are a top view and a main part sectional view showing a unit seat plate mounting step in the first embodiment of the seat plate installation structure and the seat plate installation floor structure construction method according to the present invention. FIGS.
FIGS. 3A and 3B are a top view and a main part sectional view showing a primary placing process and a level adjusting process in the first embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention. FIGS.
FIGS. 4A and 4B are a top view and a cross-sectional view of a main part showing a secondary placing process in the first embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention.
FIG. 5 is a cross-sectional view of an essential part showing a device installation step in the first embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention.
FIGS. 6A and 6B are a top view and a cross-sectional view of a main part showing a unit seat plate mounting step in a second embodiment of the seat plate installation structure and the seat plate installation floor structure construction method according to the present invention.
FIGS. 7A and 7B are a top view and a cross-sectional view of a main part showing a concrete placing process in a second embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention.
FIGS. 8A and 8B are a top view and a main part sectional view showing a level adjusting step in a second embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention. FIGS.
FIG. 9 is a cross-sectional view of an essential part showing a device installation process in a second embodiment of the construction method of the seat board installation structure and the seat board installation floor structure according to the present invention.
FIGS. 10A and 10B are a top view and a main part sectional view showing a conventional example of a construction method of a seat board installation structure and a seat board installation floor structure according to the present invention.
[Explanation of symbols]
11 Anchor bolt (foundation bolt)
11a Male screw portion 12, 21 Unit seat plate 12c Female screw hole for mounting (female screw hole for fixing the device)
13 Primary concrete 14 Secondary concrete 15 Floor 20 Spacer 21c Mounting female screw hole 21d Equipment fixing female screw hole 21e Wall 22 Concrete A Area to be the floor surface

Claims (3)

コンクリートが打設されて形成される床面のレベル調整をするために床面となる領域に設置される座板の設置構造であって、
先端部に雄螺子部を形成した基礎ボルトが、前記床面となる領域内の複数箇所に垂直に立設され、
前記座板は、少なくとも下部に取付用雌螺子孔を形成した複数の単位座板で構成され、
前記単位座板は、前記取付用雌螺子孔を前記雄螺子部に螺合させて上下動可能に前記複数の基礎ボルトにそれぞれ取り付けられ、
前記単位座板の上部には前記取付用雌螺子と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間は、該両孔を連通させない壁部が形成され、
さらに複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と打設された前記コンクリートの上面をそれぞれ被膜するライニング板を敷設して前記床面が形成されたことを特徴とする座板の設置構造。It is an installation structure of a seat plate that is installed in an area that becomes a floor surface in order to adjust the level of the floor surface that is formed by placing concrete,
A foundation bolt having a male screw portion formed at the tip is vertically erected at a plurality of locations in the area to be the floor surface,
The seat plate is composed of a plurality of unit seat plates in which a female screw hole for attachment is formed at least in the lower part,
The unit seat plate is respectively attached to the plurality of foundation bolts so as to be vertically movable by screwing the female screw hole for attachment to the male screw part,
A device fixing female screw hole is formed in the upper part of the unit seat plate coaxially with the mounting female screw, and the two holes are communicated between the mounting female screw hole and the device fixing female screw hole. A wall that is not allowed to be formed,
Furthermore, the floor is formed by laying a lining plate formed on the cylindrical main body of the plurality of unit seat plates and covering the upper surface of the disk portion having a diameter larger than that of the cylindrical main body and the upper surface of the placed concrete. An installation structure of a seat plate, characterized in that a surface is formed . レベル調整用の座板が設けられた座板設置床構造の施工方法であって、
先端部に雄螺子部が形成された基礎ボルトを、所定の複数箇所に垂直に立設するボルト設置工程と、
少なくとも下部に取付用雌螺子孔が形成されるとともに上部に該取付用雌螺子孔と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間に、該両雌螺子孔を連通させない壁部が形成された複数の単位座板を、前記雄螺子部に前記取付用雌螺子孔を螺合させて前記基礎ボルトにそれぞれ取り付ける単位座板取付工程と、
前記単位座板と前記基礎ボルトとの周囲に、単位座板の上面を露出させた状態でコンクリートを打設するコンクリート打設工程とを備え、
該コンクリート打設工程は、前記単位座板の下部近傍までコンクリートを打設する一次打設工程と、
一次打設工程の後、前記単位座板を回転させて上下動させ高さ調整を行うレベル調整工程と、
該レベル調整工程の後、前記単位座板の周囲までコンクリートを打設する二次打設工程と、
複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と二次打設工程で打設された前記コンクリートの上面をそれぞれ被膜するライニング板を敷設する工程を備えていることを特徴とする座板設置床構造の施工方法。It is a construction method of a seat plate installation floor structure provided with a seat plate for level adjustment,
A bolt installation step in which a foundation bolt in which a male screw portion is formed at a tip end portion is erected vertically at a predetermined plurality of locations;
An attachment female screw hole is formed at least in the lower part, and an apparatus fixing female screw hole is formed in the upper part coaxially with the attachment female screw hole, and the attachment female screw hole and the apparatus fixing female screw hole are A plurality of unit seat plates each having a wall portion that does not allow the female screw holes to communicate with each other are attached to the base bolts by screwing the female screw holes for attachment to the male screw portions. Process,
A concrete placing step of placing concrete around the unit seat plate and the foundation bolt with the upper surface of the unit seat plate exposed;
The concrete placing step includes a primary placing step of placing concrete to the vicinity of the lower part of the unit seat plate,
After the primary placing step, the unit seat plate is rotated and moved up and down to adjust the height; and
After the level adjustment step, a secondary placement step of placing concrete around the unit seat plate,
A lining plate formed on the cylindrical main body of the unit seat plate and covering the upper surface of the disk portion having a larger diameter than the cylindrical main body and the upper surface of the concrete placed in the secondary placement step. A construction method for a floor structure with a seat plate, characterized by comprising a step of laying . レベル調整用の座板が設けられた座板設置床構造の施工方法であって、
先端部に雄螺子部が形成された基礎ボルトを、所定の複数箇所に垂直に立設するボルト設置工程と、
少なくとも下部に取付用雌螺子孔が形成されるとともに上部に該取付用雌螺子孔と同軸に機器固定用雌螺子孔が形成され、前記取付用雌螺子孔と前記機器固定用雌螺子孔との間に、該両雌螺子孔を連通させない壁部が形成された複数の単位座板を、前記雄螺子部に前記取付用雌螺子孔を螺合させて前記基礎ボルトにそれぞれ取り付ける単位座板取付工程と、
前記単位座板に、その外周面を覆って、人力で破壊可能な低強度材料で形成された環状のスペーサを取り付けるスペーサ取付工程と、
前記スペーサを取り付けた前記単位座板と前記基礎ボルトとの周囲に、前記単位座板の上面を露出させた状態でコンクリートを打設するコンクリート打設工程と、
該コンクリート打設工程の後、前記スペーサを破壊するとともに、前記単位座板を回転させて上下動させ高さ調整を行うレベル調整工程と、
該レベル調整工程の後に、前記スペーサを破壊し取り除いた空間に前記単位座板の周囲をモルタルにて充填するモルタル充填工程と、
該モルタル充填工程の後に、複数の前記単位座板の円筒状本体の上部に形成され該円筒状本体より大径の円板部の上面と打設された前記コンクリートの上面と充填された前記モルタルの上面をそれぞれ被膜するライニング板を敷設する工程とを備えていることを特徴とする座板設置床構造の施工方法。It is a construction method of a seat plate installation floor structure provided with a seat plate for level adjustment,
A bolt installation step in which a foundation bolt in which a male screw portion is formed at a tip end portion is erected vertically at a predetermined plurality of locations;
An attachment female screw hole is formed at least in the lower part, and an apparatus fixing female screw hole is formed in the upper part coaxially with the attachment female screw hole, and the attachment female screw hole and the apparatus fixing female screw hole are A plurality of unit seat plates each having a wall portion that does not allow the female screw holes to communicate with each other are attached to the base bolts by screwing the mounting female screw holes into the male screw portions. Process,
A spacer mounting step for mounting an annular spacer formed of a low-strength material that can be broken by human power, covering the outer peripheral surface of the unit seat plate,
And concreting step of pouring the concrete in the state around and the unit seat plate fitted with the spacer the foundation bolts, to expose the upper surface of the unit seat plate,
After the concrete placing step, the level adjusting step of breaking the spacer and rotating the unit seat plate to move up and down to adjust the height ;
After the level adjustment step, a mortar filling step of filling the space around the unit seat plate with mortar in the space where the spacer is destroyed and removed,
After the mortar filling step, the mortar filled with the upper surface of the disk portion and the upper surface of the concrete formed on the cylindrical main body of the plurality of unit seat plates and having a larger diameter than the cylindrical main body. And a step of laying a lining plate that coats the upper surface of the base plate.
JP30775799A 1999-10-28 1999-10-28 Seat plate installation structure and floor plate installation method Expired - Fee Related JP4282847B2 (en)

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JP7396763B1 (en) 2022-12-14 2023-12-12 スエヒロシステム株式会社 3-point anchor integrated liner, long anchor integrated liner, equipment installation method

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