Title of article :
DETERIORATION EFFECT OF HYSTERESIS LOOPS IN NONLINEAR STATIC ANALYSIS OF INTERMEDIATE AND SPECIAL STEEL MOMENT FRAMES
Author/Authors :
Ghodrati Amiri, Gh. iran university of science and technology - School of Civil Engineering - Center of Excellence for Fundamental Studies in Structural Engineering, تهران, ايران , Darvishan, E. iran university of science and technology - School of Civil Engineering, تهران, ايران , Rokni, H.R. iran university of science and technology - School of Civil Engineering, تهران, ايران
Abstract :
FEMA440 proposed coefficient method considers the effect of stiffness degradation and strength deterioration by C2 modification factor. This factor is obtained by SDOF oscillator responses with few degrading hysteresis behaviors. This paper studies the ability of coefficient method to estimate displacement demands of MDOF buildings with mild and severe degradations. Performance of Intermediate and Special steel moment frames is compared separately by utilization of nonlinear static and dynamic analyses. Error values show a good correlation between nonlinear static and dynamic responses.
Keywords :
Degradation , coefficient method , FEMA 440 , welded connection
Journal title :
Asian Journal of Civil Engineering (Building and Housing)
Journal title :
Asian Journal of Civil Engineering (Building and Housing)
