Now showing items 1-20 of 23

    • SDII Building Archetype Design v1.0 

      Torabian, S.; Eatherton, M.R.; Easterling, W.S.; Hajjar, J.F.; Schafer, B.W. (2017-07)
      Building archetypes are fundamental to exploring and demonstrating the seismic behavior of modern structures. No suitable archetypes or prototypes exist in the open literature that focus on steel deck diaphragms for ...
    • Steel Deck Diaphragm Test Database V1.0 

      O'Brien, P.; Eatherton, M.R.; Easterling, W.S.; Schafer, B.W.; Hajjar, J.F. (2017-07)
      From the 1950’s to the present, a substantial number of large-scale tests have been conducted on steel deck diaphragms or concrete on metal deck diaphragms. The data, papers and reports for these tests are located in ...
    • Characterizing the load-deformation behavior of steel deck diaphragms using past test data 

      O'Brien, P.; Eatherton, M.R.; Easterling, W.S. (2017-06)
      Recent research has identified that current code level seismic demands used for diaphragm design are considerably lower than demands in real structures during a seismic event. However, historical data has shown that steel ...
    • In-plane shear stiffness of bare steel deck through shell finite element models 

      Bian, G; Schafer, B.W. (2017-06)
      The objective of this report is to explore the in-plane elastic shear stiffness of bare steel deck diaphragms through high fidelity shell finite element modeling. Profiled steel panels, i.e, metal deck, often serve as a ...
    • Direct Strength Prediction of Cold-Formed Steel Beam-Columns 

      Torabian, S.; Zheng, B.; Shifferaw, Y.; Schafer, B.W. (2016)
      The Direct Strength Method (DSM) of cold-formed steel member design employs local, distortional, and global cross-section elastic buckling analysis with empirically derived “direct” expressions to predict member strength. ...
    • Simulation of cold-formed steel structures 

      Leng, J. (2015)
      Buildings framed from cold-formed steel members are becoming increasingly common. Simulation of cold-formed steel (CFS) structures in this dissertation includes seismic modeling and analysis of a two-story CFS-framed ...
    • Behavior of Full-Scale Cold-Formed Steel Buildings under Seismic Excitations 

      Peterman, K.D. (2014)
      The experimental behavior of cold-formed steel (CFS) structures under seismic loads remains relatively unexplored. Modern design codes are based on member and sub- system level testing and have not been validated at the ...
    • Sheathing Braced Design of Wall Studs 

      Schafer, B.W. (2013)
      This report provides a summary document and final report for the multi-year project on Sheathing Braced Design of Wall Studs conducted at Johns Hopkins University. This project examined the axial behavior and axial + bending ...
    • Hysteretic shear response of fasteners connecting sheathing to cold-formed steel studs 

      Peterman, K.D.; Schafer, B.W. (2013)
      The series of experiments reported here aims to characterize the hysteretic behavior of the connection between cold-formed steel (CFS) studs and sheathing when subject to in- plane lateral demands. This connection provides ...
    • Test Report on Cold-Formed Steel Shear Walls 

      Liu, P.; Peterman, K.D.; Schafer, B.W. (2012)
      The objective of report is to detail recent cyclic tests on cold-formed steel (CFS) framed shear walls sheathed with Oriented Strand Board (OSB). The tests details are motivated from shear walls designed for a two-story ...
    • Moment-Rotation Characterization of Cold-Formed Steel Beams 

      Ayhan, D.; Schafer, B.W. (2012)
      The objective of this study is to provide a prediction method for characterizing the complete moment-rotation (M-!) response of cold-formed steel (CFS) members in bending. The work is an ancillary effort related to the ...
    • Fastener Spacing Study of Cold-Formed Steel Wall Studs Using Finite Strip and Finite Element Methods 

      Post, B. (2012)
      This study aims to compare the finite element and finite strip methods as they are used to perform buckling analyses of cold-formed steel wall studs. Load-bearing cold-formed steel studs are becoming more common as a ...
    • Experiments on the Stability of Sheathed Cold-Formed Steel Studs Under Axial Load and Bending 

      Peterman, K.D. (2012)
      This report provides test and analysis results for a typical cold-formed steel (CFS) stud as employed in light steel framing for a building. Specifically, tests are conducted on a 362S162-68 (50 ksi) stud connected to ...
    • CFS-NEES Building Structural Design Narrative 

      Madsen, R.L.; Nakata, N.; Schafer, B.W. (2011)
      The NSF sponsored CFS-NEES1 project R-CR: Enabling Performance-Based Seismic Design of Multi-Story Cold-Formed Steel Structures project was undertaken to study the behavior, particularly seismic behavior, of light-framed ...
    • Behavior and Design of Sheathed Cold-Formed Steel Stud Walls under Compression 

      Vieira, L. (2011)
      Cold-formed steel may be used to frame the walls, floors, and roofs of modern buildings. The individual cold-formed steel members (studs) have sheathing attached to provide appropriate architectural enclosures. This sheathing ...
    • Inelastic Bending Capacity in Cold-Formed Steel Members 

      Shifferaw, Y.; Schafer, B.W. (2008)
      The enclosed research report has been prepared for the AISI as supporting material for proposed additions to the AISI Specification (AISI-S100-07) with respect to inelastic bending of cold- formed steel flexural members. ...
    • Direct Strength Design of Cold-Formed Steel Members with Perforations 

      Moen, C.D. (2008)
      Cold-formed steel (CFS) structural members are commonly manufactured with holes to accommodate plumbing, electrical, and heating conduits in the walls and ceilings of buildings. Current design methods available to engineers ...
    • Analytical Study on Rotational Restraint of Sheathing 

      Guan, Y.; Schafer, B.W. (2008)
      Building upon a previous set of experiments performed to determine connection rotational restraint provided by sheathing in cold-formed steel floor joists, this study investigates the reliability of reported connection ...
    • AISI Design Methods for Sheathing Braced Design of Wall Studs in Compression 

      Schafer, B.W.; Vieira, L.; Iourio, O. (2008)
      This is an informal progress report document summarizing recent work on the development of a design method for sheathing braced design of wall studs with dissimilar sheathing. This document focuses on only one aspect of ...
    • Experiments on Rotational Restraint of Sheathing 

      Schafer, B.W.; Sangree, R.H.; Guan, Y. (2007)
      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 ...