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Seismic Performance of Cold-Formed Steel Shear Walls Using Corrugated Sheathing with Slits
| 题名： | Seismic Performance of Cold-Formed Steel Shear Walls Using Corrugated Sheathing with Slits |
| 正文语种： | 英文 |
| 作者： | Wenying Zhang, S.M.ASCE1; Cheng Yu, M.ASCE2; Mahsa Mahdavian, S.M.ASCE3 |
| 作者单位： | 1Ph.D. Candidate, Dept. of Structural Engineering, Tongji Univ.,Shanghai 200092, China. 2Professor, Dept. of Engineering Technology, Univ. of North Texas,Denton, TX 76207 (corresponding author). 3Research Engineer, Verco Decking Inc., 2386 Fair Oaks Blvd.,Sacramento, CA 95825. |
| 关键词： | Cold-formed steel; Shear walls; Perforated; Experimental investigation; Numerical simulation; Seismic performance assessment; Seismic performance modification factors |
| 摘要： | This paper presents an experimental study and numerical simulation analyzing the seismic performance of low- and midrise coldformed steel-framed buildings using shear walls sheathed with corrugated steel sheets with slits. A new testing method considering both lateral and gravity (vertical) load was used to investigate the behavior and strength of the cold-formed steel-framed shear walls. The test results indicate that the perforated shear walls demonstrate desirable ductility and initial stiffness with relatively high shear strength compared with nonperforated shear walls. To further study the seismic performance and determine the seismic performance factors, incremental dynamic analysis was performed of six building archetypes in which the new shear walls were installed. Seismic performance assessment was evaluated according to FEMA methodology. The results indicate that a set of seismic performance factors (R= Cd = 6.5 and Ω0 = 3.0) is appropriate for the perforated cold-formed steel-framed shear wall systems using corrugated steel sheathing. The proposed new shear wall can be used as a substitute for flat steel sheet or wood-based panels in Type I and II constructions in high wind and seismic regions. Detailed full-scale test results and nonlinear finite-element modeling results of this new lateral force resisting system are discussed and reported herein. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 4 |
| 页码： | 1-12 |
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