BOUNDARY ELEMENT LATERAL ANALYSIS OF TALL BUILDINGS INCLUDING SOIL-STRUCTURE INTERACTION EFFECTS

Abstract

In this thesis, a new technique for the analysis of buildings including soil-structure interaction (SSI) is suggested. The new analysis is based on sub-structuring approach where the system is partitioned into two main parts which are the superstructure part and the raft-soil part. A static condensation technique is implemented at the wall-raft interface. Deformations of supports at wall-raft interface are obtained. Current practical analysis of SSI is implementing the static condensation at the raft-soil interface which is time consuming and tedious job. The new analysis has shown less time and effort in the modeling and analysis. This technique of analysis is presented here only for linear analysis and shear wall buildings rested on piled raft. However, this technique can be extended to include the other methods of SSI such as EHS and nonlinear analysis such as no tension SSI, soil nonlinearity SSI and analysis of frame buildings.