Experiments on Rotational Restraint of Sheathing

A series of cantilever tests on joist-sheathing assemblies were conducted to determine the rotational restraint that sheathing provides to the compression flange of a floor joist in bending. This rotational restraint, which is characterized by the stiffness k?, can partially or fully retard distortional buckling. Distortional buckling is a mode of instability in which the flange undergoes rotation about the flange/web juncture of a member and the web locally bends. This mode of buckling has recently been recognized as a separate strength limit state in the North American Specification and design rules for its prediction adopted.American Iron and Steel Institut

Experiments on Rotational Restraint of Sheathing

A series of cantilever tests on joist-sheathing assemblies were conducted to determine the rotational restraint that sheathing provides to the compression flange of a floor joist in bending. This rotational restraint, which is characterized by the stiffness k?, can partially or fully retard distortional buckling. Distortional buckling is a mode of instability in which the flange undergoes rotation about the flange/web juncture of a member and the web locally bends. This mode of buckling has recently been recognized as a separate strength limit state in the North American Specification and design rules for its prediction adopted.American Iron and Steel Institut

Structural Stability

IASS-IACM 2008 Session: Structural Stability -- Session Organizer: Herbert MANG (Technical University of Vienna) -- Plenary Lecture: Abstract, Slides and Video: "Answers to three not quite straightforward questions in structural stability" by Andreas STEINBOECK, Gerhard HOEFINGER, Xin JIA, Herbert A. MANG (Technical University of Vienna) -- Keynote Lecture: "Limit-point and postbuckling behavior of steel trusses under thermal and mechanical loadings" by Yeong Bin YANG , T.J. LIN (National Taiwan University) -- "Modeling thin-walled cold-formed steel members and systems" by Benjamin W. SCHAFER , R. H. SANGREE, Cristopher MOEN, M. SEIF, Y. SHIFFERAW, V. ZEINODDINI, Z. J. LI, O. IUORIO, Y. GUAN (Johns Hopkins University) -- "Multi parametrical instability of straight bars" by Jan B. OBREBSKI (Warsaw University of Technology) -- "The effect of predetermined delaminations on buckling and post-buckling behavior of spatial composite timber beams and frames" by Miran SAJE , Urban RODMAN, Dejan ZUPAN, Igor PLANINC (University of Ljubljana) -- Keynote Lecture: "Buckling and sensitivity analysis of imperfect shells involving contact" by Karl SCHWEIZERHOF , Eduard EWERT (University of Karlsruhe) -- Keynote Lecture: "Determining the stability of tensegrities and generic global rigidity" by Robert CONNELLY (Cornell University) -- "Initial imperfection identification in shell buckling problems" by Christopher J. STULL , Christopher J. EARLS, Wilkins AQUINO (Cornell University) -- "Buckling phenomena, analysis and design of axially compressed cylindrical shells with co-existent external pressure" by Werner GUGGENBERGER , Medhanye B. TEKLEAB (TU Graz