dismantling method”, and the building was demolished from the upper part of the building to ground by using the tower crane, which is comm only used in newer constructions to dismantle the concrete slab into blocks by cutting with a cutter. This is a system that suspends and sorts at a dedicated processing site. By combining skillful existing technologies that are highly reliable and have a proven track record, and by repeatedly disassembling the work efficiently, this process is extremely simple and unnecessary temporary equipment can be omitted. There are almost no restrictions when applied, and has excellent versatility. Here, we are working to further improve efficiency by developing an attachment that integrates all the functions required for cutting the pillars and beams. In 2008, it was applied to an S structural building with 2 basements and 14 floors above ground (CFT columns from 2nd to 14th floors). Without crushing the structural members of floors, beams, and pillars, they are cut and lowered to the ground with a tower crane, sorted and carried forward on the ground to improve the efficiency of crane work and to implement shorter construction periods. At the same time, the cutting procedures of the structural frame and the measures that prevents Fig. 3 Shimizu Reverse Construction MethodFig. 4 Obayashi Cube-Cut Demolition Method─ 31 ─5. Obayashi Corporation “Obayashi Cube-Cut Demolition Method” : Fig.4
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