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035 _a.b11519587
099 9 _aAIT Thesis no. 845
100 1 _aKarmacharya, Riddhi B.
245 1 0 _aPost-cracking deflections of bonded prestressed concrete beams under short-time loads
260 _aBangkok :
_bAsian Institute of Technology,
_c1975
300 _a44 p.
490 1 _aThesis ;
_vno. 845
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1975
520 _aA method of analyzing the post-cracking deflections of prestressed concrete beams under short-time loads is presented. The analysis is based on an elastic-perfectly plastic stress-strain relationship for the concrete and the non-prestressed steel and an elastic-linear strain hardening stress-strain relationship for the prestressing steel. A trilinear moment-curvature curve for a prestressed concrete section is assumed and equations are derived for determining the control coordinates of the curve. This idealized moment-curvature curve is used to predict the deflections of bonded prestressed concrete beams under short-time loads. The prediction of the post-cracking deflections of continuous prestressed concrete beams necessitates the determination of the redundant moments by a trial and err or procedure. The computed values of deflections compares favorably with the existing experimental results. The theoretical values are also compared with the results obtained from the methods suggested by BENNETT and VEERASUBRAMANIAN (1972) and BRANSON (1963).
650 1 0 _aConcrete
_xCracking
650 1 0 _aPrestressed concrete beams
650 1 0 _aConcrete beams
700 1 _aPama, Ricardo P.,
_eChairperson
700 1 _aCook, David J.,
_eExamination Committee
700 1 _aMorino, Shosuke,
_eExamination Committee
710 2 _aCanadian Government,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 845
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B24095
907 _a.b11519587
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