000 02653nam a2200397 4500
005 20260818095422.0
008 170398 th eng
035 _a.b10233386
099 9 _aAIT Thesis no. 1125
100 1 _aAlwis, Weeramuni Anthony Mervyn
245 1 0 _aElastic lateral torsional buckling of unbraced and braced planar frames
260 _aBangkok :
_bAsian Institute of Technology,
_c1977
300 _a51 p.
490 1 _aThesis ;
_vno. 1125
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, 1977
520 _aA general finite-element formulation to obtain lateral-torsional buckling solution of braced and unbraced planar structures loaded in-plane, is presented. The effects of in-plane deformations on lateral-torsional buckling are included. A main feature is that the in-plane and out-of-plane deformations are treated separately to reduce computational efforts, unlike most of other formulations dealing with a similar subject. In-plane deformations are determined by following the loading path in incremental steps, through a series of equilibrium states and the critical load is found by determining the point at which the determinant of stiffness matrix of out-of-plane deformations becomes zero. The validity of the formulation is verified by testing for convergence and comparing the solutions with available results. The behaviour of un braced and braced frames are investigated using this formulation.
650 0 _aStructural frames
650 0 _aBuckling (Mechanics)
_xMathematical models
700 1 _aUsami, Tsutomu,
_eChairperson
700 1 _aKarasudhi, Pisidhi,
_eExamination Committee
700 0 _aPanitan Lukkunaprasit,
_eExamination Committee
710 2 _aBelgium Government,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 1125
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B23195
907 _a.b10233386
_bmnait
_cx
902 _a251209
998 _b2
_c951012
_dm
_ea
_fx
_g0
945 _lmnait
945 _lmnarc
942 _c20
942 _c40
909 _aBarcode : 30050003022117
_bCREATED : 1994-05-17
_cRECORD # : i10284837
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : 30050160087697
_bCREATED : 2016-04-05
_cRECORD # : i12970748
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c35692
_d35692