Study on Continuously Supported Concrete Slab-On-Grade
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Date
2016-10
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Addis Ababa University
Abstract
This thesis deals with the study of continuously supported slabs-on-grade for residential
buildings supported by soil. If we consider our country, Ethiopia, due to mass construction of
residential buildings, the thickness of slab and area of reinforcement of the ground floor slab is
not from the result of detail structural design, as a result the slab thickness and reinforcement
bars are not uniform for same kind of slab on grade. In effect, if detail design is carried out for
each slab-on-grade, it can be minimized to optimum design, which will have a significant
difference to the total cost of the building according to the project.
Therefore, this thesis will help to study a continuously supported concrete floor slab at grade.
Concrete and reinforcement are the two primary expenses in cast-in-place concrete floor
construction. Hence, by minimizing the thickness and area of reinforcement of the ground floor
slab, the cost of construction can be significantly minimized. To emphasize and verify this
study, a field test is conducted on four samples at Bole-Ayat Condominium Site. The result
confirmed that by minimizing ground floor slab thickness and area of reinforcement, the cost
of the construction can be significantly reduced.
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Keywords
Ground-supported slabs, residential buildings, Slab-On-Grade, Concrete