"Nonlinear Static Analysis (push-over analysis) and its Applications on the Effect of Improving Soft Soil on Increasing the Performance of Seismic Resistance Concrete Frame"

This research includes the procedures of applying the nonlinear static analysis (pushover analysis) on seismic resistance concrete frame systems by modeling the foundation system (soil + footing) down the structure as an elastic springs and rockingstiffness and comparing them with premise of fixed support in terms of the deformation and displacement, load and stress distribution in frame elements and accordingly clarifying the effect of improving soil on foundation system stiffness and on the responding of frame to lateral loads which helps in moving the structure performance from low level to a higher level that we need from structure to reach following the design strategy that we choose for the structure.

Study the effect of the type of soil and soil layer thickness on the dynamic response of the structure during the earthquake

It was found in this research that the seismic response of the structure increases with the decrease in the shear waves velocity in the soil, and the seismic response of the structure increases with soil layer thickness between the foundations of the structure and bedrock depth.