H.Moghaddam - professor
M.Samadi - phD Candidate

Results of the seismic performance assessment of a new structural system that has been used in a 54 story reinforced concrete building are presented. The structure which has a ‘Y shape’ form, utilizes a special structural system that does not include any beam or column. One the other hand, walls and slabs are used for carrying both gracitational and lateral loads. The general distinctions of the system are discussed. The structural efficiency of the system is compared with other conventional system in some existing tall building . the seismic responses and the dynamic behavior of the structure that were achieved by conducting various analysis are presented. The effect of analysis methods, as well as some other parameters such as modeling assumptions and bidirectional earthquake excitation on the linear responses are studied. The influence of the number of modes and design spectrum on the spectral analysis results is argued. The real heightwise distribution of lateral loads in an earthquake from dynamic analysis is presented.

tall building , shear wall , seismic evaluation