1 AIT Asian Institute of Technology

The design and behavior of hyperbolic paraboloid shells

AuthorIslam, Md. Shafiqul
Call NumberAIT Thesis no. 76
Subject(s)Shells (Engineering)

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
AbstractA test of a reinforced concrete hypar shell was performed to determine the applicability of membrane theory for such structures. The shell was loaded by air pressure and this system turned out to be very efficient for its uniformity and simplicity of operation. Experimental results within the elastic range of the shell were compared with membrane theory and an approximate solution. It was found that the interior pa^t of the shell followed membrane theory closely but near the edges bending and direct stresses were present in addition to membrane stresses. The bending moment calculated from the approximate solution compared closely with the experimental bending moment. It was also found that though bending stresses developed in the shell in addition to membrane stresses, the elastic limit predicted by membrane theory compared closely with the actual. The collapse load was 4jtimes that predicted by membrane theory.
Year1964
TypeThesis
SchoolStudent Research Before 1979
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Dr. Kurt H. Gerstic;
Examination Committee(s)Milton E. Bender, Jr., Dean;Prof. Donato T. Teodoro;
DegreeThesis (M.Eng.) - SEATO Graduate School of Engineering


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