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End Moment - End Rotation Characteristics for Beam-columns

出版	Fritz Engineering Laboratory, Department of Civil Engineering, Lehigh University, 1962
URL	http://books.google.com.hk/books?id=csb3HAAACAAJ&hl=&source=gbs_api

註釋The end mh U., Bethlehem, Pa. END MOMENT - END ROTATION CHARACTERISTICS FOR BEAM - COLUMNS. Rept. on Welded Continuous Frames and Their Components, by Theodore V. Galambos and Maxwell G. Lay. May 62, 56p. incl. illus. tables, 16 refs. (Engineering Lab. rept. no. 205A.35) (Contract Nonr-61003) Unclassified report DESCRIPTORS: *Beams - Steel, *Welded joints. Buckling, Deformation, Tests, Theory, Moments, Rotation, F anges. The end moment - end rotation behavior of wide flange steel beam-columns is discussed. It is shown that the theoretical moment-rotation curves agree well with those obtained from tests on full size columns, provided that failure occurs by excessive deflection in the plane of bending. As the rotation capacity of beam-columns is of considerable interest, comparisons are made between the theoretical and experimental values of this parameter. Local and lateral-torsional buckling may also contribute to the failure behavior of a beam-column and so approximate methods are presented which allow prediction of both the occurrence and effect of these phenomena. The amended rotation capacities are also compared with experimental results. Curves are presented which enable rotation capacity to be predicted for any combination of slenderness ratio, applied load and ratio of end moments. Interaction curves for local buckling and lateral-torsional buckling are also presented. (Author).