A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLOOR SLAB WIDENING METHOD
PROBLEM TO BE SOLVED: To provide a floor slab widening method that does not require large-scale traffic restriction.SOLUTION: A floor slab widening method is for widening a bridge having a concrete floor slab 1 and a wall structure 2, and comprises: a chipping step in which an edge part of the concrete floor slab 1 is chipped from outside the wall structure 2 by a water jet method, for exposing a main reinforcing bar 1a of the concrete floor slab 1; an extension reinforcing bar connecting step in which an extension main reinforcing bar 5 is connected to the exposed main reinforcing bar 1a of the concrete floor slab 1; a new floor slab construction step in which a new concrete floor slab 7 is constructed by casting concrete on the extension main reinforcing bar 5, the new concrete floor slab being connected and integrated with the existing concrete floor slab 1; and a wall structure removal step in which the existing wall structure 2 is removed following the new floor slab construction step.SELECTED DRAWING: Figure 1
【課題】本発明は、大幅な通行規制を必要とすることがない床版拡幅工法を提供する。【解決手段】コンクリート床版１と壁状構造物２とを有する橋梁を拡幅する床版拡幅工法であって、ウォータージェット工法によって壁状構造物２の外側からコンクリート床版１の端部を斫り、コンクリート床版１の主筋１ａを露出させる斫り工程と、露出されたコンクリート床版１の主筋１ａに延長主筋５を連結する延長主筋連結工程と、延長主筋５にコンクリートを打設して、既設のコンクリート床版１と連結一体化した新設コンクリート床版７を構築する新設床版構築工程と、該新設床版構築工程後に既設の壁状構造物２を撤去する壁状構造物撤去工程を備えている。【選択図】図１
FLOOR SLAB WIDENING METHOD
PROBLEM TO BE SOLVED: To provide a floor slab widening method that does not require large-scale traffic restriction.SOLUTION: A floor slab widening method is for widening a bridge having a concrete floor slab 1 and a wall structure 2, and comprises: a chipping step in which an edge part of the concrete floor slab 1 is chipped from outside the wall structure 2 by a water jet method, for exposing a main reinforcing bar 1a of the concrete floor slab 1; an extension reinforcing bar connecting step in which an extension main reinforcing bar 5 is connected to the exposed main reinforcing bar 1a of the concrete floor slab 1; a new floor slab construction step in which a new concrete floor slab 7 is constructed by casting concrete on the extension main reinforcing bar 5, the new concrete floor slab being connected and integrated with the existing concrete floor slab 1; and a wall structure removal step in which the existing wall structure 2 is removed following the new floor slab construction step.SELECTED DRAWING: Figure 1
【課題】本発明は、大幅な通行規制を必要とすることがない床版拡幅工法を提供する。【解決手段】コンクリート床版１と壁状構造物２とを有する橋梁を拡幅する床版拡幅工法であって、ウォータージェット工法によって壁状構造物２の外側からコンクリート床版１の端部を斫り、コンクリート床版１の主筋１ａを露出させる斫り工程と、露出されたコンクリート床版１の主筋１ａに延長主筋５を連結する延長主筋連結工程と、延長主筋５にコンクリートを打設して、既設のコンクリート床版１と連結一体化した新設コンクリート床版７を構築する新設床版構築工程と、該新設床版構築工程後に既設の壁状構造物２を撤去する壁状構造物撤去工程を備えている。【選択図】図１
FLOOR SLAB WIDENING METHOD
床版拡幅工法
TOMII TAKAYOSHI (author) / YATABE KATSUHIRO (author)
2016-04-25
Patent
Electronic Resource
Japanese
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