鉄骨造梁降伏型ラーメン構造に対する地震動の応答特性に適合した静的設計外力のGAを用いた探索方法に関する研究

摘要

It is very important for structural design to estimate and control the response displacement of the structures for the input earthquakes. For that purpose, static analysis is to be used because of its simplicity and practicality though dynamic response analysis might be most suitable approach to prescribe the actual characteristics of structures. Present paper proposes the design load which is used in the static analysis and can approximate dynamic maximum response displacement of the objective structure. In order to predict such static design load distribution, genetic algorithm is utilized together with dynamic elasto-plastic analysis of multi-degree-of-freedom shear spring-mass mathematical models which are obtained from steel frame structures. For validation of the proposed process, dynamic elasto-plastic analysis for the designed building has been carried out, in which the dynamic maximum displacement of the objective structure is confirmed to be less than the target displacement.%本論では，既往の研究に比較し，より簡便な方法で応答を制御する事を目指し，GAを用いて，構造物の二次設計レベルの動的応答を制御する一次設計時の静的設計外力の探索を行った。また，簡易建物を例に，その外力により目標とする動的特性を制御することが可能か検証を行った。