BUILDING CONSTRUCTION METHOD AND BUILDING STRUCTURE

PROBLEM TO BE SOLVED: To provide a building construction method and a building structure capable of constructing a building capable of placing a column at an arbitrary position by using a part of an existing building.SOLUTION: An area of an existing frame 20 for building a reverse driving column 38 is disassembled and an artificial ground layer 30 is formed on a foundation slab 26 of the existing frame 20. The artificial ground layer 30 is formed by fixing an axial force transmitting member 31 to a foundation beam 28 of the existing frame 20 with a chemical anchor. Then, a reverse driving column 38 is built on the artificial ground layer 30, and a new building frame 40 is constructed by using the reverse driving column 38.SELECTED DRAWING: Figure 1 【課題】既存建物の一部を用いて、柱を任意の位置に配置可能な建物を構築することができる建物構築方法及び建物の構造を提供する。【解決手段】逆打ち支柱３８を建て込むための既存躯体２０の領域を解体し、既存躯体２０の基礎スラブ２６の上に人工地盤層３０を形成する。人工地盤層３０は、軸力伝達部材３１をケミカルアンカーで既存躯体２０の基礎梁２８に固定することにより形成されている。そして、人工地盤層３０の上に逆打ち支柱３８を建て込み、この逆打ち支柱３８を用いて新築躯体４０を構築する。【選択図】図１