Seismic Performance Factors for Cross-Laminated Timber Shear Wall Systems in the United States
Publication: Journal of Structural Engineering
Volume 146, Issue 9
Abstract
Seismic force resisting systems based on cross-laminated timber (CLT) shear walls have garnered considerable attention for in mid-rise construction around the world. The purpose of this study was to determine seismic performance factors for CLT shear wall systems in platform type construction. These factors, namely, the response modification factors, R, overstrength factor, and deflection amplification factor, , have been developed in this study for CLT walls and proposed for inclusion in ASCE 7. The study follows the FEMA P695 methodology that incorporates testing, evaluating a design methodology, defining the design space representative of typical construction, and comprehensive performance evaluation. The testing phase of the project consisted of connector testing and CLT shear wall testing, all with nonproprietary generic connectors to facilitate building code recognition. The design methodology and archetype development process are also discussed in this paper. A total of nine index buildings were developed from which 72 archetypes were extracted for this study. The archetypes were designed based on the design methodology and assessed with nonlinear pushover analysis and incremental dynamic analysis. Based on the required collapse margin, an R factor of 3 is proposed for CLT shear wall systems with or mixed aspect ratio panels up to , and an R factor of 4 is proposed for CLT shear wall systems made up of only aspect ratio panels.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the corresponding author by request. These include connector test data and shear wall test data.
Acknowledgments
This study is funded by a joint venture agreement between the United States Department of Agriculture Forest Products Laboratory (FPL) and Colorado State University–USDA-USFS, 16-JV-11111133-036. That support is gratefully acknowledged. Structurlam Products LP and Nordic Structures both provided partial donation of CLT for this project, and their contributions are appreciated. The authors also acknowledge the active participation of the peer panel, Charlie Kircher (Chair), Kelly Cobeen, and J. Daniel Dolan. The opinion and views expressed in this paper are solely those of the authors.
References
Alig, R. J., J. D. Kline, and M. Lichtenstein. 2004. “Urbanization on the US landscape: Looking ahead in the 21st century.” Landscape Urban Plann. 69 (2): 219–234. https://doi.org/10.1016/j.landurbplan.2003.07.004.
Amini, M. O. 2018. “Determination of seismic performance factors for cross laminated timber shear wall system based on FEMA P695 methodology.” Ph.D. dissertation, Dept. of Civil and Environmental Engineering, Colorado State Univ.
Amini, M. O., J. W. van de Lindt, D. Rammer, S. Pei, P. Line, and M. Popovski. 2018. “Systematic experimental investigation to support the development of seismic performance factors for cross laminated timber shear wall systems.” Eng. Struct. 172 (Oct): 392–404. https://doi.org/10.1016/j.engstruct.2018.06.021.
ANSI and AWC (American National Standards Institute and American Wood Council). 2015. NDS National design specification for wood construction. Leesburg, VA: ANSI and AWC.
APA (The Engineered Wood Association). 2012. Standard for performance-rated cross laminated timber. ANSI/APA PRG 320. Tacoma, WA: APA.
ASCE. 2016. Minimum design loads for building and other structures. ASCE/SEI 7. Reston, VA: ASCE.
ASTM. 2009. Standard test methods for cyclic (reversed) load test for shear resistance of vertical elements of the lateral force resisting systems for buildings. ASTM E2126. West Conshohocken, PA: ASTM.
ASTM. 2017. Standard specification for steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process. ASTM A653/A653M. West Conshohocken, PA: ASTM.
ASTM. 2018. Standard specification for anchor bolts, steel, 36, 55, and 105 ksi yield strength. ASTM F1554. West Conshohocken, PA: ASTM.
Ceccotti, A. 2008. “New technologies for construction of medium-rise buildings in seismic regions: The XLAM case.” Struct. Eng. Int. 18 (2): 156–165. https://doi.org/10.2749/101686608784218680.
Dujic, B., S. Aicher, and R. Zarnic. 2006. “Racking behavior of light prefabricated cross-laminated massive timber wall diaphragms subjected to horizontal actions.” Otto Graf J. 17: 125–142.
FEMA (Federal Emergency Management Agency). 2009. Quantification of building seismic performance factors. FEMA P695. Washington, DC: FEMA.
FEMA (Federal Emergency Management Agency). 2011. Quantification of building system performance and response parameters—Component equivalency methodology. FEMA P-795. Washington, DC: FEMA.
Folz, B., and A. Filiatrault. 2001. “Cyclic analysis of wood shear walls.” J. Struct. Eng. 127 (4): 433–441. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:4(433).
Gavric, I., M. Fragiacomo, and A. Ceccotti. 2015. “Cyclic behavior of CLT wall systems: Experimental tests and analytical prediction models.” J. Struct. Eng. 141 (11): 04015034. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001246.
Hristovski, V., B. Dujic, M. Stojmanovska, and V. Mircevska. 2012. “Full-scale shaking-table tests of XLam panel systems and numerical verification: Specimen 1.” J. Struct. Eng. 198 (11): 2010–2018. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000754.
Ibarra, L., R. Medina, and H. Krawinkler. 2002. “Collapse assessment of deteriorating SDOF systems.” In Proc., 12th European Conf. on Earthquake Engineering, London, UK. Oxford, UK: Elsevier.
Krawinkler H., F. Parisi, L. Ibarra, A. Ayoub, and R. Medina. 2000. Development of a testing protocol for wood frame structures. Richmond, CA: CUREe.
Mallo, M. F. L., and O. Espinoza. 2015. “Awareness, perceptions and willingness to adopt cross-laminated timber by the architecture community in the United States.” J. Cleaner Prod. 94 (May): 198–210. https://doi.org/10.1016/j.jclepro.2015.01.090.
Okabe, M., M. Yasumura, K. Kobayashi, T. Haramiishi, Y. Nakashima, and K. Fujita. 2012. “Effect of vertical load under cyclic lateral load test for evaluating Sugi CLT wall panel.” In Proc., World Conf. on Timber Engineering, edited by P. Quenneville. Red Hook, NY: Curran Associates.
Pei, S., and J. W. van de Lindt. 2007. User’s manual for SAPWood for windows: Seismic analysis package for woodframe structures. Fort Collins, CO: Colorado State Univ.
Pei, S., and J. W. van de Lindt. 2009. “Coupled shear-bending formulation for seismic analysis of stacked shear wall systems” Earthquake Eng. Struct. Dyn. 38 (14): 1631–1647. https://doi.org/10.1002/eqe.926.
Pei, S., J. W. van de Lindt, and M. Popovski. 2013. “Approximate R-factor for cross laminated timber walls in multi-story buildings.” J. Archit. Eng. 19 (4): 245–255. https://doi.org/10.1061/(ASCE)AE.1943-5568.0000117.
Pei, S., J. W. van De Lindt, M. Popovski, J. W. Berman, J. D. Dolan, J. Ricles, and D. R. Rammer. 2014. “Cross-laminated timber for seismic regions: Progress and challenges for research and implementation.” J. Struct. Eng. 142 (4): E2514001. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001192.
Popovski, M., and I. Gavric. 2015. “Performance of a 2-story CLT house subjected to lateral loads.” J. Struct. Eng. 142 (4): E4015006. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001315.
Popovski, M., J. Schneider, and M. Schweinsteiger. 2010. “Lateral load resistance of cross-laminated wood panels.” In Proc., 11th World Conf. on Timber Engineering, edited by A. Ceccotti, 20–24. Red Hook, NY: Curran Associates.
Tsuchimoto, T., N. Kawai, M. Yasumura, T. Miyake, H. Isoda, C. Tsuda, S. Miura, S. Murakami, and T. Nakagawa. 2014. “Dynamic and static lateral load tests on full-sized 3-story CLT construction for seismic design.” In Proc., World Conf. on Timber Engineering, edited by A. Salenikovich. Red Hook, NY: Curran Associates.
UNECE and FAO (United Nations Economic Commission for Europe and Food and Agriculture Organization). 2017. Forest products annual market review 2009–2010. Geneva: UNECE and FAO Forestry and Timber Section.
Vamvatsikos, D., and C. A. Cornell. 2002. “Incremental dynamic analysis.” J. Earthquake Eng. Struct. Dyn. 31 (3): 491–514. https://doi.org/10.1002/eqe.141.
van de Lindt, J. W., S. Pei, H. Liu, and A. Filiatrault. 2010. “Seismic response of a full-scale light-frame wood building: A numerical study.” J. Struct. Eng. 136 (1): 56–65. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000086.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 9 • September 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Aug 26, 2019
Accepted: Feb 25, 2020
Published online: Jun 22, 2020
Published in print: Sep 1, 2020
Discussion open until: Nov 22, 2020
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