Abstract 
Selection and Scaling of ground motion plays a major role 
in designing the structural analysis since the collected data will 
be applied as seismic load to the structure.Using 
scale factor more than limit 4, effect the lateral displacement 
demand of the structural analysis which lead to bias in some 
cases.The paper includes 
three analysis procedures (1) Equivalent lateral force, (2) 
Response spectrum analysis and; (3) Time history analysis; are 
applied to the structures which are multi-degree-of-freedom 
structures with different fundamental periods of vibrations.Seven sets of ground motion suites are collected based on 
different scale factor ranges from PEER-NGA website.Keywords: Scale factor, ASCE code, PEER-NGA, Ground motion 
scaling, Magnitude, Source-to-site-distanceTarget spectrum is 
selected by using the ASCE code guideline.