"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 rocking stiffness 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.

The reality of micronutrients in some soils of the south area of Swaida

In order to implement this research soil profiles selected on a toposequence were systematically collected from different geohorizons. Results indicated that topographical factors played important roles in determining some soil features such as the depth, texture distribution of CaCO3 and the fertility matter. The study showed that the soil content of minor element was ranged between moderate to low, and this may be related to the mineralogical composition of the parent rock and weathering status and to the use of these elements by the plants uptake during the long lasting exploitation. The results also indicated that the decrease of these elements was consistent with the decrease of elevation, such as heading from the slop to the plain. This probably also due to the relation between the leaching process and topographical position and to a less extend to the pH of the soil.