性能設計における性能判断基準値に関する研究 : 時刻歴応答解析に基づくJSCA耐震性能メニューの検証

概要

論文の詳細を見る
Japan Structural. Consultants Association (JSCA) developed a performance based design code (JSCA Code) where a seismic performance gradation system has been prepared. In JSCA Code, boundaries of performance grades are given by numerical thresholds of various technical parameters, which are summarized in "table of numerical threshold". Purpose of the study in this paper is to verify the practical feasibility of the "table of numerical threshold" in terms of choice of parameters and the definition of numerical boundaries of each parameter. Although all structural types are the subjects of JSCA Code, steel structures are chosen as subjects of this study. First, basic concepts of JSCA Code are summarized followed by introduction of numerical threshold for defining seismic performance grades. Then, the results of dynamic time history response analyses of model buildings of steel structures with and without dampers or seismic isolation systems, which are conducted for the level-2 seismic action in designing high-rise buildings, are shown and efficiency of "table of numerical threshold" is studied in the light of the results. Finally, a proposal of method to classify seismic performance grade with simple indexes based on the numerical threshold of selected parameters is shown.
社団法人日本建築学会の論文
2004-02-28