Sheathed cold-formed steel housing: A seismic design procedure

Fiorino, Luigi; Iuorio, Ornella; Landolfo, Raffaele

doi:10.1016/j.tws.2009.02.004

Cited by 44 publications

(13 citation statements)

References 17 publications

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“…In Europe, multi-year efforts in Italy and Romania stand out as contributing to the state of the art. In Italy, Landolfo and colleagues performed CFS-framed wood-sheathed shear wall tests (Landolfo et al 2006), fastener testing (Fiorino et al 2007), prototype structures (Iuorio et al 2014), and complete design philosophies (Fiorino et al 2009). In Romania, Fülöp and Dubina performed CFSframed wood-and plaster-sheathed shear wall tests (Fülöp and Dubina 2006), complementary numerical models (Fülöp and Dubina 2004) and also developed full seismic design procedures (Dubina 2008).…”

Section: Aisi Cfs Framing Standardsmentioning

confidence: 99%

Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems: A Guide for Practicing Engineers

Madsen¹,

Castle²,

Schafer³

2016

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He has more than 25 years of construction industry experience and manages the company codes and compliance efforts. Additionally, he is involved in research and development and provides technical support for connectors, fastening systems, and lateral force resisting systems. He was a practicing design engineer for commercial, residential and forensic projects for more than 9 years prior to joining Simpson Strong-Tie in 2000. He currently serves as the President for the Structural Engineers Association of Southern California (SEAOSC), a SEAOC Director, a CALBO Structural Safety Committee member, and as a Manager on the ICC-ES Board of Managers. He served as AISI COFS Lateral Design Subcommittee Chairman for several years and as the Cold-Formed Steel Engineers Institute (CFSEI) President.Meaghan C. Halligan, P.E., S.E., LEED AP BD+C, is the Principal Structural Engineer at ISAT Seismic Bracing in Fremont, California. She previously managed the ISAT cold-formed steel engineering division. Prior to ISAT, she worked at several Bay Area engineering consulting firms and developed experience in the design of multifamily residential structures, seismic upgrades of commercial buildings, and light-gage steel tenant improvements. She is a member of the SEAONC Seismology Nonstructural Subcommittee and is a past chair of the SEAONC Disaster and Emergency Services Committee. Chia-Ming National Institute of Standards and TechnologyNIST is a federal technology agency within the U.S. Department of Commerce that promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life. NIST is the lead NEHRP agency. Dr. Steven L. McCabe is the Earthquake Engineering Group (EEG) Leader within the Materials and Structural Systems Division of the Engineering Laboratory at NIST. The EEG supports the work of the NEHRP program at NIST. Applied Technology CouncilThe Applied Technology Council (ATC) is a nonprofit corporation advancing engineering applications for hazard mitigation. This publication is a product of Task Order 15-347 under Contract SB1341-13-CQ-0009 between ATC and NIST. Jon A. Heintz serves as the Program Manager for work conducted under this contract, and Scott Schiff serves as ATC Associate Program Manager on this Task Order. Consortium of Universities for Research in Earthquake EngineeringThe Consortium of Universities for Research in Earthquake Engineering (CUREE) is a nonprofit organization advancing civil engineering research and education to increase the resilience of the built environment to natural and manmade hazards. This publication was produced under a cooperative agreement between ATC and CUREE. Robert Reitherman served as Associate Program Manager overseeing production. Reed Helgens and Darryl Wong served as report production and report preparation consultants for this work. NEHRP Seismic Design Technical BriefsNational Earthquake Hazards Reduction Program (NEHRP) Technical Briefs are published ...

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Section: Aisi Cfs Framing Standardsmentioning

confidence: 99%

Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems: A Guide for Practicing Engineers

Madsen¹,

Castle²,

Schafer³

2016

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“…The model allows the evaluation of each wall deflection contribution, from which the total wall deflection can be obtained by adding the deformation due to bending (d F ,), sheathing fasteners (d F-S ), sheathing panels (d S ), and anchorages The model has been calibrated on the basis of monotonic tests on full scale specimens (Landolfo et al [15]) carried out on CFS shear walls sheathed with OSB and gypsum board (GWB) and tests performed on sheathing connections (Iuorio, [16]) that are nominally identical to that used for the walls. Further details about hypothesis and applicability of the model can be found in Fiorino et al [17].…”

Section: Model For Monotonic Response Predictionmentioning

confidence: 99%

Behaviour Factor Evaluation of Sheathed Cold-Formed Steel Structures

Fiorino¹,

Iuorio

Landolfo³

2013

Volume 9 Number 1

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ABSTRACT:The seismic behaviour of sheathed cold-formed steel (SCFS) structures is characterized by the lateral response of shear walls. Basically, if cold-formed steel (CFS) structures are designed according to the "sheathing-design" methodology, then the seismic behavior of shear walls is strongly influenced by the sheathing-to-frame connections response, characterized by a remarkable nonlinear response and a strong pinching of hysteresis loops. In this paper the results of an extensive parametric non linear dynamic analysis, carried out on one story buildings by means of incremental dynamic analysis (IDA), using an ad hoc model of the hysteresis response of SCFS shear walls, are presented. An extended number of wall configurations has been considered investigating several parameters such as sheathing panel typology, wall geometry, external screw spacing, seismic weight and soil type. Based on IDA results, three behavior factors have been defined, which take into account overstrength, ductility and both overstrength and ductility, respectively.

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“…Moreover, only the assessment of the sheathing-to-frame fasteners exterior spacing (s) directly derives from seismic analysis results (phase 2), while the definition of stud thickness (t), hold-down anchor diameter ( ), and shear anchor spacing (a) is carried out on the basis of "capacity design" criteria (phase 3). More details about the hypothesis and limit of applicability of this proposed procedure can be found in [10] bottom track …”

Section: The Proposed Design Proceduresmentioning

confidence: 99%

A Specific Procedure for Seismic Design of Cold-Formed Steel Housing

Fiorino¹,

Iuorio²,

Landolfo³

2010

Volume 6 Number 1

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ABSTRACT:In the last years, the seismic performance of cold formed steel (CFS) systems has been object of study by a large number of research teams. The main parameters influencing the system behaviour under horizontal loads have been defined and the possible mechanisms of collapse have been identified. Therefore, at the moment, the development of upgraded specifications and design tools that could be readily used by designer is a must. For these reasons, this paper aims to propose a seismic design procedure that allows the shear wall components to be defined in few steps. The procedure is based on the recognized assumption that the best performance of a CFS shear wall is achieved when the sheathing-to-stud fasteners failure is reached. Moreover, it accounts the results of previous studies that defined the relation between behaviour of shear wall and fastener spacing. Hence, by defining three nomographs, the proposed procedure allows the sheathing-to-stud fasteners and all the other shear wall components to be defined. The latter are determined in accordance with capacity design criteria. Finally, the applicability of the presented procedure is verified through a case study.Keywords: Design nomographs, cold-formed steel, housing, linear dynamic analysis, nonlinear static analysis, seismic design, sheathing panels INTRODUCTIONThe growing demand of high performance housing is increasing the interest for cold-formed steel (CFS) structures. These structures are realized with a repetitive number of light gauge cold-rolled steel profiles, produced off-site in controlled environment and, then, assembled on-site with mechanical connections. These characteristics provide them lightness, rapid on-site erection, dimensional stability, high structural performance and considerable potential for recycling and reuse of all the materials. In particular, the spreading use of these constructions in countries as Japan shows the wide applicability of these systems also in seismic zones (Figure1). The global horizontal response of CFS structures under seismic actions basically depends on the shear response of CFS walls that are usually sheathed with metal sheets or panels (sandwich panels, wood-based or gypsum-based panels). Moreover, when the sheathing has adequate strength and stiffness and it is effectively connected with the frame, then the interaction between profiles, sheathing panels and sheathing-to-frame connections can be advantageously taken into account in the structural analysis. In this case, the definition of shear wall elements (studs, sheathing panels, sheathing-to-frame connections, and frame-to-foundation anchors), that constitute the main lateral resisting system in case of seismic actions, is a key point for the design. Currently, a relatively large database of experimental investigations carried out on different CFS wall assemblies subjected to in plane shear loading has been obtained by Gad et al. [7]. As result, the main parameters influencing the shear behaviour of walls have been identified. As a consequen...

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Sheathed cold-formed steel housing: A seismic design procedure

Cited by 44 publications

References 17 publications

Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems: A Guide for Practicing Engineers

Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems: A Guide for Practicing Engineers

Behaviour Factor Evaluation of Sheathed Cold-Formed Steel Structures

A Specific Procedure for Seismic Design of Cold-Formed Steel Housing

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