단일 가새 부재의 이력성상의 (履歷性狀) 정식화

다국어 초록 (Multilingual Abstract)

To examine closely the elasto-plastic hysteretic behavior of braced frames under repeated lateral load, first of all, the hysteretic characteristics of a brace member itself ought to be known. Up to now, through the experimental or theoretical study on a frame in within or without country, the hysteretic behavior of frame itself is well clarified. However, the behavior of a brace member as a main lateral force resisting element has not been clear. In this paper, on the basis of data from test results, a mathematical formulation to predict the hysteretic loop of a brace is to be derived and the process fully discussed. The selected sectional shapes of braces are steel tubular sections and double angles. The changes of strength and axial stiffness under repeated lateral loading are expressed as a function of energy dissipation ratio. The term $quot;energy dissipation ratio$quot; will be defined in a special pattern in this paper. The basic algorithm to predict the hysteretic loop of a brace member is to be presented.