03206nam a2200385 4500 20260818144345.0 270798 th eng .b10380292 AIT Thesis no.ST-90-12 Qureshi, Juneid Investigation of the influence of loading histories on the ductility of RC linear members Bangkok : Asian Institute of Technology, 1990 112, A3, B6 p. Thesis ; no. ST-90-12 A thesis submitted in partial fulfillments of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1990 The development and application of a mathematical model , based on damage assessment, to predict ductility for a cantilever type of RC member has been established in this study. A ductility index, which effectively represents ductile behavior of a RC member, has been selected and termed as limiting ductility fac tor. The formulated model can be u sed to calculate the limiting ductility factor, and the corresponding number of cycles to reach it, for a member having any given set of material and specimen properties, when subjected to any form of cyclic loading history. Experimental confirmation of model results has been obtained by testing eleven doubly reinforced cantilever beams, having two different levels of shear stress, by subjecting them to different types of cyclic static loading histories , which include monoton ic , asymmetric and symmetric loadings with full and half rever sals of displacement. The model results have also been used for comparison with all previously available experimental data on cyclic loading and shows good agreement . The analysis of experimental results show that loading history has significant effect on ductility and that damage progression of a member is unique i.e independent of loading direction. Also it is seen that member behavior is closely linked with level of shear stress experienced. Based on observed results recommendation is made for the type of loading history that should be considered for determining ductility under typical earthquake loading. Reinforced concrete Ductility Materials Dynamic testing Ueda, Tamon, Chairperson Karasudhi, Pisidhi , Exam The Government of Norway, Scholarship Donor Asian Institute of Technology. Thesis ; no. ST-90-12 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18553 .b10380292 mnait s 240328 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120688733 CREATED : 2014-02-04 RECORD # : i12786147 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160068994 CREATED : 2016-08-04 RECORD # : i12931056 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 64819 64819 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-90-12 30050120688733 2026-08-18 14:43:45 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-90-12 30050160068994 2026-08-18 14:43:45 1 2026-08-18 40