Using Buckling-Restrained Braces on Long-Span Bridges. I: Full-Scale Testing and Design Implications
Publication: Journal of Bridge Engineering
Volume 21, Issue 5
Abstract
Using the Vincent Thomas Bridge (VTB) as a feasibility case study, near-fault loading protocols for qualifying buckling-restrained braces (BRBs) for use on long-span bridges were developed and are presented in a companion paper. In this paper, full-scale component testing demonstrated the ability of BRBs to sustain several consecutive near-fault loading protocols, and therefore, they are recommended as qualified for potential use on the VTB and other similar long-span bridges near seismic faults. Near-fault protocol test results led to the proposal of a new procedure for measuring unbalanced BRB compression and tension forces by testing two nominally identical braces. Other novel test variables included the use of stainless steel (SS) for several BRB yielding cores and high strain rates, characteristic of near-fault loading, in two dynamic tests. Design considerations were identified for BRBs using highly ductile SS considering its significant strain-hardening properties, as well as the increased brace force response due to the high strain rate observed for both steels.
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Acknowledgments
Funding for this research was provided by the California Department of Transportation under Contract No. 65A0358, with Dr. Charly Sikorsky as the project manager. The authors thank CoreBrace, LLC, for donating the specimens.
References
AISC. (2005). “Seismic provisions for structural steel buildings.” AISC 341-05, Chicago.
AISC. (2010). “Seismic provisions for structural steel buildings.” AISC 341-10, Chicago.
ASCE. (2010). “Minimum design loads for buildings and other structures.” ASCE 7-10, Reston, VA.
ASTM. (2014). “Standard specification for ‘twist off’ type tension control structural bolt/nut/washer assemblies, steel, heat treated, 150 ksi minimum tensile strength.” F2280, West Conshohocken, PA.
ASTM. (2015). “Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.” A240, West Conshohocken, PA.
Benzoni, G., Amaddeo, C., DiCesare, A., and Palermo, G. (2008). “A damage identification procedure for bridge structures with energy dissipation devices.” Rep. No. SRMD-2007/08, Dept. of Structural Engineering, Univ. of California, San Diego, La Jolla, CA.
Bruneau, M., Uang, C. M., and Whittaker, A. (2011). Ductile design of steel structures, McGraw-Hill, New York.
Carden, L., Itani, A., Buckle, I., and Aiken, I. (2004). “Buckling restrained braces for ductile end cross frames in steel plate girder bridges.” Proc., 13th World Conf. on Earthquake Eng., Paper No. 503, Vancouver, BC, Canada.
Celik, O. C., and Bruneau, M. (2009). “Seismic behavior of bidirectional-resistant ductile end diaphragms with buckling restrained braces in straight steel bridges.” Eng. Struct., 31(2), 380–393.
Chou, C.-C., and Chen, S.-Y. (2010). “Subassemblage tests and finite element analyses of sandwiched buckling-restrained braces.” Eng. Struct., 32(8), 2108–2121.
Di Sarno, L., Elnashai, A. S., and Nethercot, D. A. (2002).“Comparison between seismic response characteristics of carbon steel and stainless steel.” Proc., 12th European Conf. on Earthquake Eng., Paper No. 765, London.
Infanti, S., Papanikolas, P., Benzoni, G., and Castellano, M.G. (2004). “Rion-Antirion Bridge: Design and full-scale testing of the seismic protection devices.” Proc., 13th World Conf. on Earthquake Eng., Paper No. 2174, Vancouver, BC, Canada.
Iwata, M. (2004). “Applications-design of buckling restrained braces in Japan.” Proc., 13th World Conf. on Earthquake Eng.,Paper No. 3208,Vancouver, BC, Canada.
Kanaji, H., Kitazawa, M., and Suzuki, N. (2005). “Seismic retrofit strategy using damage control design concept and the response reduction effect for a long-span truss bridge.” Proc., 19th U.S.-Japan Bridge Workshop, Tsukuba, Japan.
Kaufmann, E. J., Metrovich, B. R., and Pense, A. W. (2001). “Characterization of cyclic inelastic strain behavior on properties of A572 Gr. 50 and A913 Gr. 50 rolled sections.” ATLSS Rep. No. 01-13, Lehigh Univ., Bethlehem, PA.
Lanning, J., Benzoni, G., and Uang, C.-M. (2013). “The feasibility of using buckling-restrained braces for long-span bridges: Near-fault loading protocols and full-scale testing.” Rep. No. SSRP 13/17, Dept. of Structural Engineering, Univ. of California, San Diego, La Jolla, CA.
Lanning, J., Benzoni, G., and Uang, C.-M. (2015). “Using buckling-restrained braces on long-span bridges. II: Feasibility and development of a near-fault loading protocol.” J. Bridge Eng.,.
Lanning, J., and Uang, C.-M. (2014). “Full-scale BRB testing: Dynamic near-fault protocols.” 〈https://www.youtube.com/watch?v=zMR_uFTriHY〉 (July. 10, 2014).
Merritt, S., Uang, C. M., and Benzoni, G. (2003) “Subassemblage testing of corebrace buckling-restrained braces.” Rep. No. TR-03/01, Dept. of Structural Engineering, Univ. of California, San Diego, La Jolla, CA.
Moffatt and Nichol Engineers (1996). “Toll road seismic retrofit project Vincent Thomas Bridge, strategy report.” Rep. to Caltrans California Department of Transportation, Sacramento, CA.
Nip, K. H., Gardner, L., Davies, C. M., and Elghazouli, A. Y. (2010). “Extremely low cycle fatigue tests on structural carbon steel and stainless steel.” J. Constr. Steel Res., 66(1), 96–110.
Nordberg, H. (2004) “Note on the sensitivity of SSs to strain rate.” Research Rep. No. 04.0-1, AvestaPolarit Research Foundation, Sheffield Hallam Univ., International Stainless Steel Forum, Brussels, Belgium.
Paul, S. K., Sivaprasad, S., Dhar, S., and Tarafder, S. (2010). “Cyclic plastic deformation and cyclic hardening/softening behavior in 304LN stainless steel.” Theor. App. Fract. Mech., 54(1), 63–70.
Pollino, M., and Bruneau, M. (2007). “Seismic retrofit of bridge steel truss piers using a controlled rocking approach.” J. Bridge Eng., 600–610.
Reno, M., and Pohll, M. (2010). “Seismic retrofit of California’s Auburn-Foresthill Bridge.” Transportation Research Record, 2201, 83–94.
Sabelli, R., Mahin, S., and Chang, C. (2003). “Seismic demands on steel braced frame buildings with buckling-restrained braces.” Eng. Struct., 25(5), 655–666.
Shing, P. S., and Mahin, S. (1988). “Rate-of-loading effects on pseudodynamic tests.” J. Struct. Eng., 2403–2420.
Takeuchi, T., Ozaki, H., Matsui, R., and Sutcu, F. (2014). “Out-of-plane stability of buckling-restrained braces including moment transfer capacity.” Earthquake Eng. Struct. Dyn., 43(6), 851–869.
Tremblay, R., Bolduc, P., Neville, R., and DeVall., R. (2006). “Seismic testing and performance of buckling-restrained bracing systems.” Can. J. Civil Eng., 33(2), 183–198.
Tsai, K. C., et al. (2008). “Pseudo-dynamic tests of a full-scale CFT/BRB frame---Part I: Specimen design and analysis.” Earthquake Eng Struct. Dyn. 37, 1081–1098.
Uang, C.-M., Nakashima, M., and Tsai, K.-C. (2004). “Research and application of buckling-restrained braced frames.” Int. J. Steel Struct., 4(4), 301–313.
Usami, T., Lu, Z., and Ge, H. (2005). “A seismic upgrading method for steel arch bridges using buckling-restrained braces.” Earthquake Eng. Struct. Dyn., 34(4–5), 471–496.
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Information
Published In
Journal of Bridge Engineering
Volume 21 • Issue 5 • May 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 10, 2014
Accepted: Jan 26, 2015
Published online: Jan 20, 2016
Published in print: May 1, 2016
Discussion open until: Jun 20, 2016
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