1 AIT Asian Institute of Technology

Stresses in nonprestressed reinforcements of prestressed concrete beams

AuthorGangoso, Cesar M.
Call NumberAIT Thesis no. 151
Subject(s)Prestressed concrete beams
Strains and stresses

NoteA thesis submitted in partial fulfillment if the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractAn experimental investigation of the stresses in the nonprestressed mild steel reinforcement of twelve under-reinforced prestressed concrete beams with rectangular section is here presented. The beams were tested to failure by third-point loading on a 9-ft simple span. The primary variables were the percentage ratios and the location of the nonprestressed reinforcements. The relationship of these variables to load moments, beam deflections and steel stresses are presented in the form of graphs and tables. The experimental values of the cracking moment, ultimate moment, and deflections are compared to results obtained from a theoretical analysis. The results showed that unless slip occurred, the steel and the concrete cooperated fully to carry the load. No slip generally occurred until the concrete had cracked. The nonprestressed reinforcements had practically no influence on the cracking moment, but contributed significantly to the ultimate load.
Year1966
TypeThesis
SchoolStudent Research Before 1979
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Victor A. Pulmano;
Examination Committee(s)Dr. Ladislav B. Kriz;Dr. William J. Venuti;Dean Milton E. Bender, Jr.;
DegreeThesis (M.Eng.) - SEATO Graduate School of Engineering


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