Assessment Of Piled Raft Foundation For Highrise Buildings Under Vertical Load In Addis Ababa The Case Of Nib Zemen And United Bank Headquarter Buildings

Piled Raft foundation is a newly emerged foundation system. Different rnresearchers are working on it till now. The system is mainly used to respond tornweak foundation materials. rnThe intent of this study is, to assess the piled-raft foundations of high-risernbuildings under vertical load. These foundations are designed by local engineersrnto respond to high-rise building foundation requirement. The study is conductedrnusing finite element method software package – ABAQUS. rnThe numbers of projects considered in this study are three. They have similarrnnature and are under construction. The designers use similar pile spacing for allrnprojects and it is the only variable parameter in this study. The foundations arernmodeled with pile spacing of 3D (designers spacing) and 6D (two times designersrnspacing). rnThe site's geology is predominantly rocky but in different weathered condition.rnThe assessment result shows maximum and differential settlement of thernfoundations are very insignificant and angular distortion is within permissiblernlimit. Almost all the vertical load is taken by the pile and the load shared by thernraft is very insignificant.

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