The experimental equation of the codes for the fundamental period usually do not consider exactly the effect of infilled frame with masonry material, This issue may affect severely the fundamental period of the moment resistant frame. It appears that the review and assessment of the experimental formulas for the fundamental period is necessary. In this paper, by modeling of infill walls as compression diagonal element in the steel frame of 3,5,7,9 and 11-storey, effect of different infill percent from 0 to 80, variable modulus of elasticity and different bay length are studied. The results show that the error between the standard no. 2800 of Iran and the curve which is interpolated on the total results is less than 5 percent, but the R squared of the regression curve on the standard no. 2800 is 0.65 which show the poor capability of estimation. A new formula for the time period of the moment resistant frames is also derived from the results
Beiraghi, H., & Gerami, M. (2013). Investigation of the fundamental period for the moment resistant frame. Journal of Solid and Fluid Mechanics, 2(2), 1-11. doi: 10.22044/jsfm.2013.133
MLA
Hamid Beiraghi; Mohsen Gerami. "Investigation of the fundamental period for the moment resistant frame", Journal of Solid and Fluid Mechanics, 2, 2, 2013, 1-11. doi: 10.22044/jsfm.2013.133
HARVARD
Beiraghi, H., Gerami, M. (2013). 'Investigation of the fundamental period for the moment resistant frame', Journal of Solid and Fluid Mechanics, 2(2), pp. 1-11. doi: 10.22044/jsfm.2013.133
VANCOUVER
Beiraghi, H., Gerami, M. Investigation of the fundamental period for the moment resistant frame. Journal of Solid and Fluid Mechanics, 2013; 2(2): 1-11. doi: 10.22044/jsfm.2013.133
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