So to provide stiffness to structures against lateral forces steel columns are used. Post- tensionedslab structures have weak resistance tolateral loads. While using PT method more precautions has to be made for shear and deflection criteria for the slabs since RCC post tensioning slabs are weak against lateral force. Post- tensioning, or PT, has become increasingly popular over the past 30 years or so as the technology has been perfected. Post- tensioning, which is a form of prestressing, has several advantages over standard reinforcing steel (rebars): It reduces or eliminates shrinkage cracking- therefore no joints, or fewer joints, are needed and Cracks that do form are held tightly together ,It allows us to build slabs on expansive or soft soil and It lets usdesign longer spans in elevated members, like floors or beams. ![]() Sree Narayana Guru College of Engineering and TechnologyĪbstract- Looking at the modern trend of construction, RCC post tensioned flat slab are widely adopted in commercial and residential sectors due to its low cost of construction and aesthetic view. Post Graduate Student Department of Civil Engineering Sree Narayana Guru College of Engineering and TechnologyĪssistant Professor Department of Civil Engineering ![]() Comparative Analysis and Seismic Performance Improvement of RCC Post Tensioned Flat Slab with Steel Composite PT Flat Slab System using ETABS
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