Seismic response of Cfs strap-braced stud walls: Theoretical study

The use of cold-formed steel (CFS) profiles in low-rise residential buildings has increased in European construction sector. The reason of this interest is related to potentialities offered by this constructive system, which are the high structural performance, lightness, short construction time, durability and eco-efficiency. Nevertheless, the current structural codes, such as Eurocodes, do not provide enough information about the seismic design of this structural typology. In an effort to investigate the seismic response of CFS structures, a theoretical and experimental research has been carried out at University of Naples Federico II, with the main aim to support the spreading of these systems in seismic areas. This study focuses on an “all-steel design” solution in which strap-braced stud walls are the main lateral resisting system. In the present paper the outcomes of theoretical phase are shown with the aim of defining the criteria for the seismic design of such structures. In particular, a critical analysis of the requirements for CFS systems provided by the American code AISI S213 has been carried out by comparing it with those given by Eurocodes for traditional braced steel frames.

[1]  Gaetano Della Corte,et al.  Seismic Behavior of Sheathed Cold-Formed Structures: Numerical Study , 2006 .

[2]  Hassan Moghimi,et al.  Performance of light-gauge cold-formed steel strap-braced stud walls subjected to cyclic loading , 2009 .

[3]  Chanakya Arya,et al.  Eurocode 3: Design of steel structures , 2018, Design of Structural Elements.

[4]  Raffaele Landolfo,et al.  BEHAVIOUR FACTOR EVALUATION OF SHEATHED COLD-FORMED STEEL STRUCTURES , 2013 .

[5]  Colin A. Rogers,et al.  Inelastic performance of cold-formed steel strap braced walls , 2007 .

[6]  Raffaele Landolfo,et al.  Seismic analysis of sheathing-braced cold-formed steel structures , 2012 .

[7]  V. Avanessian,et al.  Shear Wall Resistance of Lightgage Steel Stud Wall Systems , 1990 .

[8]  Raffaele Landolfo.  COLD-FORMED STEEL STRUCTURES IN SEISMIC AREA : RESEARCH AND APPLICATIONS , 2011 .

[9]  Raffaele Landolfo,et al.  Designing CFS structures: The new school bfs in naples , 2014 .

[10]  Raffaele Landolfo,et al.  Sheathed cold-formed steel housing: A seismic design procedure , 2009 .

[11]  Raffaele Landolfo,et al.  Seismic response of Cfs strap-braced stud walls: Experimental investigation , 2014 .

[12]  Reynaud Serrette,et al.  Shear Resistance of Gypsum-Sheathed Light-Gauge Steel Stud Walls , 1996 .

[13]  Colin A. Rogers,et al.  Evaluation of the AISI S213 seismic design procedures through testing of strap braced cold-formed steel walls , 2010 .

[14]  D Dubina,et al.  PERFORMANCE OF WALL-STUD COLD-FORMED SHEAR PANELS UNDER MONOTONIC AND CYCLIC LOADING PART I: EXPERIMENTAL RESEARCH , 2004 .

[15]  Luís Simões da Silva,et al.  Design of Steel Structures: Eurocode 3: Design of Steel Structures, Part 1-1: General Rules and Rules for Buildings , 2010 .

[16]  Raffaele Landolfo,et al.  Performance-based design of sheathed CFS buildings in seismic area , 2012 .

[17]  Y. S. Tian,et al.  Racking Strength and Stiffness of Cold-Formed Steel Wall Frames , 2004 .

[18]  R. Landolfo,et al.  A SPECIFIC PROCEDURE FOR SEISMIC DESIGN OF COLD-FORMED STEEL HOUSING , 2010 .

[19]  M. Fardis,et al.  Designer's guide to EN 1998-1 and en 1998-5 Eurocode 8: Design of structures for earthquake resistance; general rules, seismic actions, design rules for buildings, foundations and retaining structures/ M.Fardis[et al.] , 2005 .

[20]  Gaetano Della Corte.  Lateral Response of Sheathed Cold-formed Shear Walls an Analytical Approach , 2006 .

[21]  N. Null.  Minimum Design Loads for Buildings and Other Structures , 2003 .

[22]  Gaetano Della Corte,et al.  Seismic Performance of Sheathed Cold-formed Shear Walls , 2006 .

[23]  Antonio Rodríguez-Ferran,et al.  Experimental testing of joints for seismic design of lightweight structures. Part 3: gussets, corner joints, x-braced frames , 2007 .