Linear Static Analysis of Regular Space Frame with & Without Fixed Base

Due to present increase in the world population people in this world tends to occupy available location present in any zone, which also includes zones falling in the high seismic zone categories. Commonly designers consider the building to be fixed at their bases. Flexibility of the soil causes the decrease in stiffness resulting increasing in the natural period of the structure. Such increases in the natural periods, changes the seismic response of structure hence it may be an important issue for design consideration. The present study provides systematic guideline for determining the natural periods of frame buildings due to the effect of soil-flexibility and identification of spring stiffness for linear building story and various influential parameters such as period, displacement, base shear and column forces have identified for both fixed and flexible base has to be studied for bare frame for all types of soils.