수정된 지수 모델을 이용한 반강접 철골구조물의 거동의 관한 연구 ( A Study on the Behavior of Semi-rigid Steel Frames using Modified Exponential Model )

To understand the behavior of semi-rigid frames, it is necessary to know M- r behavior of actual beam-to-column connection and to formulate the appropriate M- r model for use in the design and analysis of semi-rigid frames. The nonlinear characteristics of beam-to-column connection play a very important role for frame stability. The aim of this paper is to provide M- r characteristics and corresponding parameter of semi-rigid connections of modified exponential model. This model can be obtained a curve-fitting parameters Cj, Dk, etc, by using SCDB program. And the drift corresponding to incremental loading of the semi-rigid steel frame with the parameters of modified exponential model was compared with that of the second-order frame analysis including the effect of connection flexibility.