ハイブリッド型応力法による建物鉄骨架構の弾塑性発破解体解析

概要

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Unified and effective hybrid stress finite element method to simulate elasto-plastic and collapse behavior in the blasting-demolition process of steel plane frame structures is presented. In order to set the resultant stresses at blasting point to be zero, and to evaluate the blasting effect accurately and systematically, the well-established Lagrange multiplier method is employed. The availability and the applicability of this approach are examined, and especially, it is shown that the present beam-column element yields no discretizing errors in the blasting-demolition process as well as in the external loading shown in Refs. 2) and 3). Several numerical tests are performed on the beam and the gable frame, and show that the present approach might be very powerful and one of the most promising in this field.
一般社団法人日本建築学会の論文
2002-03-20