BEHAVIOUR OF DIFFERENT TYPES OF FOUNDATION SUBJECTED TO DYNAMIC LOADS AND RESTED ON SAND SOIL | ||
| Journal of Al-Azhar University Engineering Sector | ||
| Article 20, Volume 13, Issue 49, October 2018, Pages 1380-1390 PDF (3.52 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/auej.2018.18931 | ||
| Authors | ||
| Kotb A1; Elbatal A1; Abo-Alanwar M1; Zamel A2 | ||
| 1Faculty of Engineering, Al – Azhar University, Cairo, Egypt | ||
| 2Civil Engineer, National Organization for Potable Water & Sanitary Drainage Cairo, Egypt | ||
| Abstract | ||
| Studying of foundation behaviour under different loading cases is one the most important topics that has occupied a great deal of interest. Foundation closely correlated with factors and surrounding conditions such as type of active load and type of soil bearing foundation. Non-static load (dynamic) is one of the most dangerous types of loads that affect the foundations such as earthquakes, which in turn depends heavily on the weight of the building, which depend on the number of floors, as well as the type of soil bearing foundations. To study the effect of variable load on the foundations, a model of two different types of foundations was presented (Raft – Raft with inverted beam) and exposed to El_centro earthquake with constant soil type and changing the number of floors (5, 10 and 15). From analysis results, it showed that:- 1- Raft and raft with inverted beam have almost equal stresses and deformations. 2- Raft with inverted beam is better in resisting H.Z displacement resulting of dynamic loads than raft. 3- Raft with inverted beam improved results although it is equal to 70 % of raft inertia, so that it is better to use it with dynamic loads. | ||
| Keywords | ||
| Raft; Inverted Beam; (PGA) Peak Ground Acceleration; FE (Finite Element) | ||
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