Numerical Analysis of Multilevel Eccentric Chevron Braced Frame for Improved Inelastic Behavior
Publication: Practice Periodical on Structural Design and Construction
Volume 27, Issue 1
Abstract
This paper presents a renovation strategy to upgrade the conventionally constructed chevron braced (both concentric and eccentric) steel frames in such a way that each set of the upgraded braces would uniquely display the characteristics of two simultaneously working eccentric braces at each story. The upgraded configuration of the chevron brace is termed here as a multilevel eccentric chevron (MLEC). Nonlinear numerical analysis was conducted to access the inelastic behavior of the braced frames under cyclic loading. The reduced deflection of beams, rectification of the sudden peaks in the hysteresis curves obtained for the initially concentric chevron braced frame, symmetric/balanced hysteresis curves obtained for the initially eccentric chevron braced frame, and the significant improvement in the plastic dissipation by the MLEC braced frames indicated toward the achievement of an excellent seismic behavior. The presented strategy would be very cost-effective, handy (ease of construction), least disruptive, and cause minimal structural intervention. This strategy was found to significantly improve both the strength and ductility of the conventionally constructed chevron braced frames.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
References
AISC (American Institute of Steel Construction). 2016. Seismic provisions for structural steel buildings. ANSI/AISC 341-16. Chicago: AISC.
Azad, S. K., and C. Topkaya. 2017. “A review of research on steel eccentrically braced frames.” J. Constr. Steel Res. 128: 53–73. https://doi.org/10.1016/j.jcsr.2016.07.032.
Choudhury, T., G. Milani, and H. B. Kaushik. 2015. “Comprehensive numerical approaches for the design and safety assessment of masonry buildings retrofitted with steel bands in developing countries: The case of India.” Constr. Build. Mater. 85 (Jun): 227–246. https://doi.org/10.1016/j.conbuildmat.2015.02.082.
Dassault Systemes. 2014. Abaqus/CAE user’s guide, Abaqus 6.14. Johnston, RI: Simulia Corp.
Dutta, S. C., S. Nayak, G. Acharjee, S. K. Panda, and P. K. Das. 2016. “Gorkha (Nepal) earthquake of April 25, 2015: Actual damage, retrofitting measures and prediction by RVS for a few typical structures.” Soil Dyn. Earthquake Eng. 89 (Oct): 171–184. https://doi.org/10.1016/j.soildyn.2016.08.010.
Foutch, D. A., S. C. Goel, and C. W. Roeder. 1987. “Seismic testing of full-scale steel building—Part I.” J. Struct. Eng. 113 (11): 2111–2129. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:11(2111).
Fukuta, T., I. Nishiyama, H. Yamanouchi, and B. Kato. 1989. “Seismic performance of steel frames with inverted V braces.” J. Struct. Eng. 115 (8): 2016–2028. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:8(2016).
IS (Indian Standard). 2007. General construction in steel—Code of practice. IS:800. New Delhi, India: IS.
JSCE (Japan Society of Civil Engineers). 2009. Standard specifications for steel and composite structures. 1st ed. Tokyo: JSCE.
Lumpkin, E. J., P. C. Hsiao, C. W. Roeder, D. E. Lehman, C. Y. Tsai, A. C. Wu, C. Y. Wei, and K. C. Tsai. 2012. “Investigation of the seismic response of three-story special concentrically braced frames.” J. Constr. Steel Res. 77 (Oct): 131–144. https://doi.org/10.1016/j.jcsr.2012.04.003.
Murty, C. V. R., J. Dutta, and S. K. Agrawal. 2004. “Twin lintel belt in steel for seismic strengthening of brick masonry buildings.” Earthquake Eng. Eng. Vibr. 3 (2): 215–222. https://doi.org/10.1007/BF02858236.
Narayan, S. A., and K. K. Pathak. 2020. “Buckling analysis of braced frames under axial and lateral loadings: The effect of bracing location on frame configuration.” In Vol. 81 of Advances in structural technologies, lecture notes in civil engineering, 317–334. Singapore: Springer.
Narayan, S. A., and K. K. Pathak. 2021. “Numerical experimentation for the upgrade of old designed eccentrically braced frame.” Pract. Period. Struct. Des. Constr. 26 (4): 04021044. https://doi.org/10.1061/(ASCE)SC.1943-5576.0000619.
Narayan, S. A., K. K. Pathak, and A. Sharma. 2020. “Buckling analysis of space frames using experimental and numerical techniques.” J. Struct. Eng. 47 (3): 227–232.
Popov, E. P. 1983. “Recent research on eccentrically braced frames.” Eng. Struct. 5 (1): 3–9. https://doi.org/10.1016/0141-0296(83)90034-2.
Popov, E. P., K. Kasai, and M. D. Engelhardt. 1987. “Advances in design of eccentric braced frames.” Bull. N. Z. National Soc. Earthquake Eng. 20 (1): 22–29. https://doi.org/10.5459/bnzsee.20.1.22-29.
Popov, E. P., K. Takanashi, and C. W. Roeder. 1976. Structural steel bracing systems: Behavior under cyclic loading. Berkeley, CA: Univ. of California.
Rai, D. C., and S. C. Goel. 2003. “Seismic evaluation and upgrading of chevron braced frames.” J. Constr. Steel Res. 59 (8): 971–994. https://doi.org/10.1016/S0143-974X(03)00006-3.
Roeder, C. W. 1989. “Seismic behavior of concentrically braced frame.” J. Struct. Eng. 115 (8): 1837–1856. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:8(1837).
Sabelli, R. 2001. Research on improving the design and analysis of earthquake-resistant steel-braced frames. Oakland, CA: EERI.
Sen, A. D., L. Pan, D. Sloat, W. Roeder, D. E. Lehman, J. W. Berman, K. C. Tsai, C. H. Li, and A. C. Wu. 2014. “Numerical and experimental assessment of the chevron braced frames with weak beams.” In Proc., 10th US National Conf. on Earthquake Engineering. Oakland, CA: Earthquake Engineering Research Institute.
Sen, A. D., C. W. Roeder, J. W. Berman, D. E. Lehman, C. H. Li, A. C. Wu, and K. C. Tsai. 2016. “Experimental investigation of chevron concentrically braced frames with yielding beams.” J. Struct. Eng. 142 (12): 1–15. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001597.
Sen, A. D., C. W. Roeder, D. E. Lehman, and J. W. Berman. 2019. “Non-linear modelling of concentrically braced frames.” J. Constr. Steel Res. 157 (3): 103–120. https://doi.org/10.1016/j.jcsr.2019.02.007.
Sizemore, J. G., L. A. Fahnestock, E. M. Hines, and C. R. Bradley. 2017. “Parametric study of low-ductility concentrically braced frames under cyclic loading.” J. Struct. Eng. 143 (3): 04017032. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001761.
Sloat, D. A. 2014. “Evaluation and retrofit of non-capacity designed braced frames.” M.Sc. thesis, Dept. of Civil and Environmental Engineering, Univ. of Washington.
Tsuji, B., and T. Nishino. 1988. “Elastic plastic deformation and collapse behavior of braced frames.” In Proc., Ninth World Conf. on Earthquake Engineering (IV). Oakland, CA: Earthquake Engineering Research Institute.
Wakabayashi, M., T. Nakamura, and N. Yoshida. 1977. “Experimental studies on the elastic-plastic behavior of braced frames under repeated horizontal loading. Part 1 (Experiments of braces with an H-shaped cross section in a frame).” Bull. Disaster Prev. Res. Inst. 27 (3): 121–154.
Wakabayashi, M., T. Nakamura, and N. Yoshida. 1980a. “Experimental studies on the elastic-plastic behavior of braced frames under repeated horizontal loading. Part 2 (Experiments of braces composed of steel circular tubes, angle-shapes, flat bars or round bars).” Bull. Disaster Prev. Res. Inst. 29 (3): 99–127.
Wakabayashi, M., T. Nakamura, and N. Yoshida. 1980b. “Experimental studies on the elastic-plastic behavior of braced frames under repeated horizontal loading. Part 3 (Experiments of one–story one bay braced frames).” Bull. Disaster Prev. Res. Inst. 29 (4): 143–164.
Wakabayashi, M., and B. Tsuji. 1967. “Experimental investigation on the Behavior of frames with and without bracing under Horizontal loading.” Bull. Disaster Prev. Res. Inst. 16 (2): 82–94.
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Practice Periodical on Structural Design and Construction
Volume 27 • Issue 1 • February 2022
Copyright
© 2021 American Society of Civil Engineers.
History
Received: May 12, 2021
Accepted: Sep 1, 2021
Published online: Oct 20, 2021
Published in print: Feb 1, 2022
Discussion open until: Mar 20, 2022
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