キーエレメント指標を用いたS造建築物の発破解体計画

Blast Demolition Planning of Steel Framed Structures Using Key Element Index

Abstract


建物の発破解体工法は欧米では盛んだが、解体計画は解体業者のノウハウに依存するため定量的な判断基準はなく、欧米に比べ設計強度の高い日本の建築物にそのノウハウを適用することは容易ではない。そこで、本研究室では建物全体の強度に対する柱部材の寄与度を数値的に表したキーエレメント指標を用いた発破解体計画法を考案している。本稿では、5層7×3スパンのモデルに対して発破解体計画を適用した結果を報告する。


In this paper, a blast demolition planning of buildings based upon key element index in which the contribution of a column to the strength of the building can be investigated numerically, is described. The purpose of this study is to develop a blast demolition planning tool that can even demolish complicated buildings. The relationship between the total value of key element index for the removed columns and the height of remains after the demolition is investigated. We also applied the analysis code to investigate the demolition behaviors. It is confirmed that the buildings with some layers and high strength can even be demolished.


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