PROBLEM TO BE SOLVED: To provide a technology for inexpensively demolishing a boiler building having a large-sized boiler suspended in the building.;SOLUTION: A lower support 200 made of concrete for supporting a large-sized boiler 20 from below is arranged below the large-sized boiler 20. In addition, a side surface of the large-sized boiler 20 is connected to the other end of a horizontal support 100 for supporting the large-sized boiler 20 from a lateral side, which has one end connected to a column wall 11 or a hoist part 13 of a building 10. The whole boiler building is demolished by little and little from above, in the above state.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2018,JPO&INPIT
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