損傷制御構造に設置された履歴ダンパーのエネルギー吸収能力予測法

摘要

In this paper, the energy absorption capacity of a hysteresis damper installed in a damage control structure was investigated. The performance of a hysteresis damper is limited by its fracture. The method predicting the metal fatigue life is extended to apply to the evaluation of the life of dampers. However, the method based on the energy absorption is necessary for the earthquake-resistant design. The conclusions obtained from this paper can be summarized as follows. (1) The energy-based method to evaluate the ultimate performance of a hysteresis damper was proposed based on the results of the cyclic loading tests. (2) The characteristic of the distribution of the energy response of the damage control structure is clarified based on the results of the earthquake response analyses. (3) By using these results, the simple method to predict the energy absorption capacity of the damper was proposed.%建物の自重を支持する弾性主架橋（柔部分）と地震入力エネル ギーを吸収する弾塑性要素（剛部分）から構成される耐震構造（柔剛 混合構造，損傷制御構造）においては，弾性架構の存在により， 地震入力エネルギーが弾塑性要素で効率良く吸収され，また，地震 終了時の残留変形が抑制される．このような構造の耐震性能を定 量的に評価するためには，エネルギー吸収要素の限界性能が明らか にされなければならない．