BUILDING METHOD USING REVERSE OUT METHOD

PROBLEM TO BE SOLVED: To provide a technology capable of efficiently constructing an underground building part while sufficiently providing a process shortening effect using a simultaneous construction of a building part and a ground building part.SOLUTION: Relating to a building method using a reverse out method, a temporary opening part A which extends over a plurality of post spans S is formed at a floor part 11A which is on an upper floor side than a bottom floor in a portion constructed by the reverse out method in a building B, and under a condition where the temporary opening part A is being formed, a construction work at a floor just under the floor where the temporary opening part A is formed is carried out.SELECTED DRAWING: Figure 2 【課題】地下建物部と地上建物部の同時施工による工期短縮効果は十分に得られながら地下建物部を効率的に構築することのできる技術を提供する。【解決手段】逆打ち工法を用いた建築方法であって、建物Ｂにおける逆打ち工法にて構築する部分中の最下階よりも上階側の床部１１Ａに複数の柱スパンＳに亘る仮設開口部Ａを形成しておき、当該仮設開口部Ａを形成した状態のままで仮設開口部Ａを形成した階の直下階の構築作業を実施する【選択図】図２