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FLOOR SLAB REPLACEMENT METHOD FOR STEEL COMPOSITE GIRDER, AND PC FLOOR SLAB
PROBLEM TO BE SOLVED: To provide a floor slab replacement method for a steel composite girder that is less likely to cause interference between a PC steel material of the PC floor slab to be replaced when replacing the floor slab of the steel composite girder, at the same time curtailing duration of the floor slab replacement work.SOLUTION: A floor slab replacement method for a steel composite girder is for replacing an existing concrete floor slab with a PC floor slab 1, the existing concrete floor slab being a part of a steel composite girder that integrates a steel girder G1 with the concrete floor slab. The floor slab replacement method includes: a floor slab removal step for dismantling and removing the existing concrete floor slab; a PC floor slab installation step for installing a PC floor slab 1 on the steel girder G1, the PC floor slab having a stud hole (a cotter 12) for housing a stud dowel SJ and joining with the steel girder G1 formed between a PC steel material 11 and the other PC steel material 11, and for each width of a stud in a bridge axial direction; and a stud erection step for erecting a stud dowel SJ' on a top surface of the steel girder G1, in a stud hole (a cotter 12) of the PC floor slab 1 installed in the PC floor slab installation step.SELECTED DRAWING: Figure 7
【課題】鋼合成桁の床版取替の際に取り替えるＰＣ床版のＰＣ鋼材とスタッドが干渉するおそれが少なく、且つ、床版取替作業の作業時間を短縮することができる鋼合成桁の床版取替工法を提供する。【解決手段】鋼桁Ｇ１とコンクート床版とが一体となった鋼合成桁の既設コンクート床版をＰＣ床版１に取り替える鋼合成桁の床版取替工法において、前記既設コンクリート床版を解体撤去する床版撤去工程と、スタッドジベルＳＪを収容して鋼桁Ｇ１と合成するためのスタッド孔（コッター１２）が、ＰＣ鋼材１１と他のＰＣ鋼材１１との間、且つ、橋軸方向にはスタッド１本分の幅ごとに複数成形されたＰＣ床版１を鋼桁Ｇ１上に設置するＰＣ床版設置工程と、前記ＰＣ床版設置工程で設置したＰＣ床版１のスタッド孔（コッター１２）内において、鋼桁Ｇ１の上面にスタッドジベルＳＪ’を立設するスタッド立設工程と、を備える。【選択図】図７
FLOOR SLAB REPLACEMENT METHOD FOR STEEL COMPOSITE GIRDER, AND PC FLOOR SLAB
PROBLEM TO BE SOLVED: To provide a floor slab replacement method for a steel composite girder that is less likely to cause interference between a PC steel material of the PC floor slab to be replaced when replacing the floor slab of the steel composite girder, at the same time curtailing duration of the floor slab replacement work.SOLUTION: A floor slab replacement method for a steel composite girder is for replacing an existing concrete floor slab with a PC floor slab 1, the existing concrete floor slab being a part of a steel composite girder that integrates a steel girder G1 with the concrete floor slab. The floor slab replacement method includes: a floor slab removal step for dismantling and removing the existing concrete floor slab; a PC floor slab installation step for installing a PC floor slab 1 on the steel girder G1, the PC floor slab having a stud hole (a cotter 12) for housing a stud dowel SJ and joining with the steel girder G1 formed between a PC steel material 11 and the other PC steel material 11, and for each width of a stud in a bridge axial direction; and a stud erection step for erecting a stud dowel SJ' on a top surface of the steel girder G1, in a stud hole (a cotter 12) of the PC floor slab 1 installed in the PC floor slab installation step.SELECTED DRAWING: Figure 7
【課題】鋼合成桁の床版取替の際に取り替えるＰＣ床版のＰＣ鋼材とスタッドが干渉するおそれが少なく、且つ、床版取替作業の作業時間を短縮することができる鋼合成桁の床版取替工法を提供する。【解決手段】鋼桁Ｇ１とコンクート床版とが一体となった鋼合成桁の既設コンクート床版をＰＣ床版１に取り替える鋼合成桁の床版取替工法において、前記既設コンクリート床版を解体撤去する床版撤去工程と、スタッドジベルＳＪを収容して鋼桁Ｇ１と合成するためのスタッド孔（コッター１２）が、ＰＣ鋼材１１と他のＰＣ鋼材１１との間、且つ、橋軸方向にはスタッド１本分の幅ごとに複数成形されたＰＣ床版１を鋼桁Ｇ１上に設置するＰＣ床版設置工程と、前記ＰＣ床版設置工程で設置したＰＣ床版１のスタッド孔（コッター１２）内において、鋼桁Ｇ１の上面にスタッドジベルＳＪ’を立設するスタッド立設工程と、を備える。【選択図】図７
FLOOR SLAB REPLACEMENT METHOD FOR STEEL COMPOSITE GIRDER, AND PC FLOOR SLAB
鋼合成桁の床版取替工法及びＰＣ床版
KAMEZAKI MASASHI (author) / SAITO KOJI (author) / SHOJI AKIO (author)
2018-02-08
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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