Behavior of Post -Tensioned High Strength Concrete Slabs with Opening | ||||
| Engineering Research Journal | ||||
| Article 16, Volume 183, Issue 3, September 2024, Page 264-279 PDF (2.13 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erj.2024.377456 | ||||
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| Authors | ||||
Mohamed A. Hemid  1; Hamed Askar2; Mohamed Elzoughiby2; Mohamed Mathana3
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| 1B. Sc. In Civil Engineering, Zagazig University,2013 | ||||
| 2Prof., Structural Engineering Department Faculty of Engineering, Mansoura University | ||||
| 3Associate Prof., Structural Engineering Department Faculty of Engineering, Mansoura University | ||||
| Abstract | ||||
| Design of slabs using the Post tension system, became now a very popular technique in design specially for large span slabs. the main advantage of using PT (Post-Tensioned) in design, is reducing the amount of used steel reinforcement, used in heavy loaded floors as it reduces the thickness of slab by about 20%, This leads to reduce the loads carried by columns and by turn reducing foundation dimensions; especially in high rise building. Recently, investigating the problem of using this type of slab with different opening dimensions and location are limited to a certain aspects. Frequently, the presence of opening in slab is highly required for passing the different construction services like A.C Lines, electrical cables, pipes of gas & water, etc…. In this paper, the effect of openings in PT slabs has been investigated experimentally. An experimental program consisting of six square flat plate specimens, had been carried out. All specimens were made of high strength concrete with target strength fcu= 80 kN/mm² and had a variable opening ratios. | ||||
| Keywords | ||||
| HSC (High strength concrete); PT (Post-Tensioned Concrete); Finite element; Stresses; openings; Jacking force | ||||
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