Abstract：Frame structure when subjected to horizontal vibration is usually simplified as shear beam model or bending beam model. The accuracy of each model is not quite clear until now. A typical 3-stories concrete frame structure is analyzed with shear beam model and bending beam model respectively. Vibration frequency equations are derived and first three vibration frequencies are solved. On the comparison of these frequency values with the corresponding calculation results of finite element analysis of the 3-stories structure, it can be seen that bending beam model is more accurate than shear beam model.
2011, Vol. 30 
