الفهرس 
chapter 1Only 14 pages are availabe for public view
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Abstract
Post tension (PT) floors are one of the most widely used systems for building
construction all over the world. Such systems have too many behavior,
construction and economic benefits over other systems used. for floor
construction. PT floors is an elegant combination of complementary
materials used together to certify better performance. The high-strength steel
used to pre-compress the concrete takes advantage of concrete’s high
compressive strength and compensates for concrete’s low tensile strength. In
Egypt, the use of PT systems still has market and economic constraints
related to practice and leading to very limited use of such superior system.
On the other hand, conventional RC flat slab floor are widely spread because
it doesn’t require high technique.
In this Thesis, an investigation of the PT floors systems as an alternative in
the Egyptian construction market is investigated for optimum behavior and
cots. At first, different merits of PT systems considering behavior, design,
construction and economic issues are investigated in-depth. In addition a
numerical study for comparison of the costs with the RC flat slab
construction which is the most commonly used system in the Egyptian
market. Economic span of PT systems and the saving in concrete, rebar costs