NUMERICAL MODELING OF COLD-FORMED STEEL SHEAR WALLS WITH WOOD-BASED SHEATHING UNDER LATERAL LOADING

Date

2018-09-14

Author

Topcuoğlugil, Yağmur
Baran, Eray
Topkaya, Cem

Metadata

Show full item record

Item Usage Stats

185
views

0
downloads

Cold-formed steel (CFS) structuralsystems have been used increasingly in seismically active regions. Shear walls consisting of CFS framing and sheathing panels constitute one type of lateral force resisting system for such CFS framed buildings. The purpose of this study is to develop an efficient numerical model to predict the lateral load response of shear walls that are framed with CFS profiles and sheathed with oriented strand board (OSB) panels. Numerical modeling of shear walls was conducted in OpenSees platform. Fastener-based approach incorporating nonlinear fastener model for screw connections was adopted. Screw connections were modeled by using a special hysteretic material model capable of softening, strength degradation, and cyclic pinching called as Pinching4. Parameters required to define this hysteretic model were based on a series of monotonic and cyclic loading tests conducted on OSB-to-CFS screw connections. Additionally, a complementary test program was carried out on OSB specimens to determine the in-plane shear properties of OSB sheathing panels. Shear wall model was verified with full-scale experimental data in terms of strength, stiffness and pinching characteristics. Then, a parametric study by utilizing the verified model was conducted in order to investigate the influence of various parameters such as local fastener behavior, fastener spacing, rigidity of studtrack connection, stiffness of CFS framing members, stiffness of hold-down members v vi and the level of gravity loading on overall wall response. Seismic force modification (R) factors, including ductility related force modification factor (Rµ) and overstrength related force modification factor (RΩ), were calculated by using the bilinear forcedisplacement response determined from the numerically determined hysteretic response of several shear walls following the Equivalent Energy Elastic-Plastic (EEEP) approach

Subject Keywords

Fastener-Based Approach, Cyclic Response, Thin-Walled Structures, CFS Shear Wall, Cold-Formed Steel

URI

https://hdl.handle.net/11511/80928
http://etd.lib.metu.edu.tr/upload/12624827/index.pdf

Conference Name

13th INTERNATIONAL CONGRESS ON ADVANCES IN CIVIL ENGINEERING

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Numerical modeling of cold-formed steel sheathed shear walls under lateral loading Topçuoğlugil , Yağmur; Baran, Eray; Department of Civil Engineering (2019) Cold-formed steel (CFS) structural systems have been used increasingly in seismically active regions. Shear walls consisting of CFS framing and sheathing panels constitute one type of lateral force resisting system for such CFS framed buildings. The purpose of this study is to develop an efficient numerical model to predict the lateral load response of shear walls that are framed with CFS profiles and sheathed with oriented strand board (OSB) panels. Numerical modeling of shear walls was conducted in OpenSe...
Experimental investigation of structural systems made of sheathed cold-formed steel wall panels Pehlivan, Barış Mert; Baran, Eray; Department of Civil Engineering (2023-1-12) Cold-formed steel (CFS) structural systems are considered to be an innovative and newly developing construction method. Because of advantages such as lower fabrication periods, high strength/weight ratio and ease of construction, CFS structural systems have been used increasingly all around the world, including seismically active areas. Although there have been many studies in the literature, CFS structural systems are relatively new for the civil engineering practice and few existing specifications regardi...
Dynamic strain aging of dual phase steels in forming applications Bayramin, Berkay; Efe, Mert; Department of Metallurgical and Materials Engineering (2017) Sheet metals are subjected to certain temperatures (25-200oC) and strain rates (1-10 s-1) during forming applications. These thermomechanical conditions may cause dynamic strain aging (DSA) in various grades of steels including dual phase (DP) steels. DSA represent itself as serrations in the stress-strain curves. Two grades of DP steels (DP590 and DP800) were studied systematically at different strain rates (10-3s-1-1s-1) and temperatures (25oC-400oC) to investigate the DSA effects on the mechanical proper...
Analysis of mechanical behavior of high performance cement based composite slabs under impact loading Satıoğlu, Azize Ceren; Gülkan, Polat; Department of Civil Engineering (2009) Studies on the behavior of steel fiber reinforced concrete (SFRC) and slurry infiltrated fibrous concrete (SIFCON) to impact loading have started in recent years. Using these relatively new materials, higher values of tensile and compressive strength can be obtained with greater fracture toughness and energy absorption capacity, and therefore they carry a considerable importance in the design of protective structures. In this thesis, computational analyses concerning impact loading effect on concrete, steel...
Numerical modeling of counter-current spontaneous imbibition during underbalanced drilling Naseri, Masoud; Sınayuç, Çağlar (2012-09-10) Mud solid and filtrate invasion are the most common causes of formation damage during overbalanced drilling (OBD), which is a method of drilling in which the wellbore pressure remains greater than formation pressure. During the past ten years, underbalanced drilling operations (UBD), which can be defined as a drilling method in which the wellbore pressure is less than formation pressure, has been growing due to their applications such as prevention of lost circulation, reduction of filtration lost in natura...

Citation Formats

Y. Topcuoğlugil, E. Baran, and C. Topkaya, “NUMERICAL MODELING OF COLD-FORMED STEEL SHEAR WALLS WITH WOOD-BASED SHEATHING UNDER LATERAL LOADING,” presented at the 13th INTERNATIONAL CONGRESS ON ADVANCES IN CIVIL ENGINEERING, İzmir, Türkiye, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80928.