非構造部材が鉄骨造建物の全体挙動に及ぼす影響 外装材と間仕切り壁の力学特性を表す履歴モデルの提案

摘要

Non-structural components on steel buildings have considerable strength and stiffness for structural members. It is certain that they have some influence on the seismic performance of the building. On this paper, the macroscopic mechanical properties of exterior components which consist of ALC (autoclaved lightweight aerated concrete) wall cladding panels and interior components which consist of gypsum board partition walls with light-gage steel stud framings are developed from the results of the shaking table test of a full-scale 4 story steel building. Based on it, the numerical hysteretic model for non-structural components combined exterior and interior materials are derived.In addition, effects of the stiffness and strength of non-structural components and damping factor for the building seismic behavior are investigated. Finally, the evaluation method of the seismic capacity of non-structural components on general steel buildings is mentioned, and effect of non-structural components for total behavior of steel buildings is deliberated.%本論では震動台実験における非構造部材の力学特性を分析し，それが建物全体に及ぼす影攀について検討した。その結果，以下の知見を得た。1.鉄骨造建物におけるガラス窓を有するALCパネル外装材の水平力に関する履歴は，弾性剛性がその層が経験した最大変形角に依存し，かつ一定の降伏耐カを持つ弾塑性要素と，等価減衰定数が振幅に比例して増加する粘性要素を並列結合した履歴モデルで表現することができる。