000018821 001__ 18821
000018821 005__ 20170118182242.0
000018821 04107 $$aeng
000018821 046__ $$k2017-01-09
000018821 100__ $$aAyhan, Deniz
000018821 24500 $$aFloor-To-Wall Connection Behavior in Ledger-Framed Cold-Formed Steel Construction

000018821 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018821 260__ $$b
000018821 506__ $$arestricted
000018821 520__ $$2eng$$aThe objective of this paper is to investigate the moment-rotation behavior of floor-to-wall connections used in ledgerframed cold-formed steel construction with full-scale experiments. Recently completed research employing full-scale shake table tests on a two-story ledger-framed cold-formed steel framed building exhibited beneficial lateral system response that far exceeded predictions. One hypothesis is that the stiffness of the floor-to-wall connections, and the repetitive nature of this connection, provided beneficial semi-rigid frame response that augmented the designed shear walls. Monotonic and cyclic full-scale connections were tested and reported here to examine the strength and stiffness, so that this hypothesis may be explored further. The test matrix is designed to evaluate the presence of floor sheathing, applied moment/shear ratio of the joist, joist-to-ledger clip angle location (inside or outside of the joist section), presence of top and bottom screws connecting the joist and ledger flanges, and location of the joist relative to the studs. The results indicate that the connection details and loading conditions drive not only the capacity but also the observed limit states. Current design for this connection assumes pure shear and is controlled by screw shear capacity. However, screw pull-out, ledger flange buckling, and stud web crippling are all observed in the testing. These findings will be used to support future 3D seismic building analysis and design and to develop improved design guidance for ledger framing.

000018821 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018821 653__ $$acold-formed steel, ledger framing, floor-to-wall connections, moment-rotation behavior, limit states.

000018821 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018821 720__ $$aAyhan, Deniz$$iSchafer, Benjamin W.
000018821 8560_ $$ffischerc@itam.cas.cz
000018821 8564_ $$s5079700$$uhttps://invenio.itam.cas.cz/record/18821/files/2299.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2299.
000018821 962__ $$r16048
000018821 980__ $$aPAPER