[J22] Bjornsson, A.B. and Krishnan, S., 2025. "Retrofit Strategies Using Braces for Pre-Northridge Steel Moment-Frame Buildings: An Analytical Study.", Journal of Earthquake Engineering, Published Online. [doi]. [PDF]
[J21] Krishnan, S., 2022. "A Collapse Mechanics-Based Criterion for the Optimal Proportioning of Steel Moment Frames Subjected to Earthquakes.", Journal of Structural Engineering, Vol. 148(10). [doi]. [PDF]
[J20] Mourhatch, R. and Krishnan, S., 2020. "Performance Quantification of Tall Steel Braced Frame Buildings Using Rupture-To-Rafters Simulations.", Journal of Earthquake Engineering, Vol. 26(8), pp. 4105-4128. [doi]. [PDF]
[J19] Mourhatch, R. and Krishnan, S., 2020. "Simulation of Broadband Ground Motion by Superposing High-Frequency Empirical Green's Function Synthetics on Low-Frequency Spectral-Element Synthetics", Geosciences, 10(9), 339. [doi]. [PDF]
[J18] Veeraraghavan, S., Hall, J.F. and Krishnan, S., 2019. "Modeling the rocking and sliding of free-standing objects using rigid-body dynamics", Journal of Engineering Mechanics, Vol. 146(6). [doi]. [PDF]
[J17] Siriki, H., Mourhatch, R. and Krishnan, S., 2019. "Limit State Exceedance Probabilities of Building Performance Under Earthquake Excitation Using Rupture-to-Rafters Simulations", Journal of Earthquake Engineering. [doi]. [PDF]
[J16] Veeraraghavan, S., Heaton, T.H. and Krishnan, S., 2019. "Lower Bounds on Ground Motion at Point Reyes During the 1906 San Francisco Earthquake from Train Toppling Analysis", Seismological Research Letters, 90(2A), 683-691. [doi]. [PDF]
[J15] Mourhatch, R. and Krishnan, S., 2018. "Probabilistic Estimates of Ground Motion in the Los Angeles Basin From Scenario Earthquakes on the San Andreas Fault.", Geosciences, 8(4), 126. [doi]. [PDF]
[J14] Veeraraghavan, S., Hudnut, K. and Krishnan, S., 2017. "Toppling Analysis of the Echo Cliff Precariously Balanced Rock", Bulletin of the Seismological Society of America, Vol. 107(1), pp. 72-84. [doi]. [PDF]
[J13] Siriki, H., Bhat, H., Lu, X., and Krishnan, S., 2015. "A Laboratory Earthquake-Based Stochastic Seismic Source Generation Algorithm for Strike-Slip Faults and its Application to the Southern San Andreas Fault", Bulletin of the Seismological Society of America. Vol. 105(4), pp. 2250-2273. [doi]. [PDF]
[J12] Bjornsson, A.B. and Krishnan, S., 2014. "A Low-Complexity Candidate for Benchmarking Collapse-Prediction of Steel Braced Structures", Special Issue on Computational Simulation in Structural Engineering, Journal of Structural Engineering, Vol. 140(8), 2014. [doi]. [PDF]
[J11] Krishnan, S. and Muto, M., 2013. "Sensitivity of the Earthquake Response of Tall Steel Moment Frame Buildings to Ground Motion Features", Journal of Earthquake Engineering, Vol. 17(5), pp. 673-698, 2013. [doi]. [PDF]
[J10] Krishnan, S., Casarotti, E., Goltz, J., Ji. C., Komatitsch, D., Mourhatch, R., Muto, M., Shaw, J. H., Tape, C., and Tromp, J., 2012. "Rapid Estimation of Damage to Tall Buildings Using Near Real-Time Earthquake and Archived Structural Simulations", Bulletin of the Seismological Society of America, vol. 102(6), pp. 2646-2666, December, 2012. [doi]. [PDF]
[J09] Krishnan, S. and Muto, M., 2012. "Mechanism of Collapse of Tall Steel Moment Frame Buildings Under Earthquake Excitation", Journal of Structural Engineering, vol. 138(11), pp. 1361-1387, November, 2012. [doi]. [PDF]
[J08] Muto, M. and Krishnan, S., 2011. "Hope for the Best, Prepare for the Worst: Response of Tall Steel Buildings to the ShakeOut Scenario Earthquake", ShakeOut Special Issue, Earthquake Spectra, vol. 27(2), pp. 375-398, May 2011. [doi]. [PDF]
[J07] Krishnan, S., Muto, M., Mourhatch, R., Bjornsson, A. B., and Siriki, H., 2011. "Rupture-to-Rafters Simulations: Unifying Science and Engineering for Earthquake Hazard Mitigation", Special Issue on Earthquake Engineering Simulation, IEEE Computing in Science and Engineering Magazine, Vol. 13(4), pp. 28-43, July-August 2011. [doi]. [PDF]
[J06] Krishnan, S.. "The Modified Elastofiber Element for Steel Slender Column and Brace Modeling", Journal of Structural Engineering, vol. 136(11), pp. 1350-1366, November 2010. [doi]. [PDF]
[J05] Krishnan, S., 2007. "Case Studies of Damage to 19-Story Steel Moment-Frame Buildings Under Near-Source Ground Motion", Earthquake Engineering and Structural Dynamics, vol. 36(7), pp. 861-885, July 2007. [doi]. [PDF]
[J04] Krishnan, S., Ji, C., Komatitsch, D., and Tromp, J., 2006. "Performance of Two 18-Story Steel Moment-Frame Buildings in Southern California During Two Large Simulated San Andreas Earthquakes", Earthquake Spectra, vol. 22(4), pp. 1035-1061, November 2006. [doi]. [PDF]
[J03] Krishnan, S., Ji, C., Komatitsch, D., and Tromp, J., 2006. "Case Studies of Damage to Tall Steel Moment-Frame Buildings in Southern California During Large San Andreas Earthquakes", Bulletin of the Seismological Society of America, vol. 96(4), pp. 1523-1537, August 2006. [doi]. [PDF]
[J02] Krishnan, S. and Hall, J. F., 2006. "Modeling Steel Frame Buildings in Three Dimensions - Part II: Elastofiber Beam Element and Examples", Journal of Engineering Mechanics, vol. 132(4), pp. 359-374, April 2006. [doi]. [PDF]
[J01] Krishnan, S. and Hall, J. F., 2006. "Modeling Steel Frame Buildings in Three Dimensions - Part I: Panel Zone and Plastic Hinge Beam Elements", Journal of Engineering Mechanics, vol. 132(4), pp. 345-358, April 2006. [doi]. [PDF]
[P01] Inventors: Krishnan, S., Pellegrino, S., and Heaton, T.H., 2014. "Deployable Structural Units and Systems, Patent No. US 8869460 B2", 2014. [PDF]
[W01] Krishnan, S., 2014. "Professional Engineering Certification for Civil and Structural Engineers in India", 2014. [PDF]
[C20] Krishnan, S., 2021. "A Relational MySQL Database for Rupture-to-Rafters Simulations", Poster #052, Annual Meeting, Southern California Earthquake Center, Virtual, September 12-17, 2021. [PDF]
[C19] Krishnan, S., 2021, "An Analytical Approach for the Optimal Proportioning of SMRF Buildings for Earthquake Resistance", Abstract 2031644, EMI 2021 Virtual Conference, May 25-28, 2021. Click here to watch the presentation.
[C18] Mourhatch, R. and Krishnan, S., 2021, "Performance Quantification of Tall Steel Braced Frame Buildings Using Rupture-To-Rafters Simulations", Abstract 2031600, EMI 2021 Virtual Conference, May 25-28, 2021. Click here to watch the presentation.
[C17] Mourhatch, R. and Krishnan, S., 2020. "Performance Quantification of Tall Steel Braced Frame Buildings Using Rupture-To-Rafters Simulations", Poster #234, Annual Meeting, Southern California Earthquake Center, Virtual, September 14-17, 2020. [PDF]
[C16] Gogus, A., Krishnan, S., Darama, H., Melek, M., and Zekioglu, A., 2014. "Caltech Virtual Shaker", Second Eurpoean Conference on Earthquake Engineering and Seismology, Istanbul, August 25-29, 2014. [PDF]
[C15] Veeraraghavan, S. and Krishnan, S., 2012. "3-D Dynamic Analysis of Precariously Balanced Rocks Under Earthquake Excitation", 15th World Conference in Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012. [PDF]
[C14] Siriki, H., Bhat, H., Lu, X., Rosakis, A.J., and Krishnan, S., 2012. "A Recursive Division Stochastic Strike-Slip Seismic Source Algorithm Using Insights from Laboratory Earthquakes", 15th World Conference in Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012. [PDF]
[C13] Mourhatch, R. and Krishnan, S., 2012. "High-Frequency Ground Motion Simulation Using a Source- and Site-Specific Empirical Green's Function Approach", 15th World Conference in Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012. [PDF]
[C12] Bjornsson, A.B. and Krishnan, S., 2012. "A Retrofitting Framework for Pre-Northridge Steel Moment-Frame Buildings", 15th World Conference in Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012. [PDF]
[C11] Krishnan, S. and Muto, M., 2012. "Mechanism of Collapse of Tall Steel Moment Frame Buildings Under Earthquake Excitation", 15th World Conference in Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012. [PDF]
[C10] Krishnan, S., 2011. "Modeling Elastic and Inelastic, Critical- and Post-Buckling Behavior of Bracing Members", Structural Stability Research Council (SSRC), Annual Stability Conference, Pittsburgh, May 10-14, 2011. [PDF]
[C09] Krishnan, S. "Modeling Elastic and Inelastic, Critical- and Post-Buckling Behavior of Bracing Members", EERI's 9th U.S. National Conference on Earthquake Engineering, Toronto, Canada, July 2010. [PDF]
[C08] Muto, M. and Krishnan, S. "SHAKEOUT2008: Tall Steel Moment Frame Building Response", EERI's 9th U.S. National Conference on Earthquake Engineering, Toronto, Canada, July 2010. [PDF]
[C07] Krishnan, S., 2008. "Modeling Steel Moment Frame and Braced Frame Buildings in Three Dimensions Using FRAME3D", Proceedings of the 14th World Conference in Earthquake Engineering, Beijing, China, October 17-21, 2008. [PDF]
[C06] Krishnan, S., Ji, C., Komatitsch, D., Tromp, J., Muto, M., Mitrani-Reiser, J., and Beck, J. L., 2008. "Simulation of an 1857-like Mw 7.9 San Andreas fault earthquake and the response of tall steel moment frame buildings in southern California - A prototype study", Proceedings of the 14th World Conference in Earthquake Engineering, Beijing, China, October 17-21, 2008. [PDF]
[C05] Muto, M., Krishnan, S., Beck, J. L., Mitrani-Reiser, J., 2008. "Seismic loss estimation based on end-to-end simulation", IALCCE08: First International Symposium on Life-Cycle Civil Engineering, Varenna, Lake Como, Italy, June 11-14, 2008. [PDF]
[C04] Muto, M., and Krishnan, S., 2008. "Response of tall steel buildings in southern California to the magnitude 7.8 shakeout scenario earthquake", Inaugural International Conference of the Engineering Mechanics Institute, University of Minnesota, May 18-21 2008. [PDF]
[C03] Krishnan, S., Ji, C., Komatitsch, D., and Tromp, J., 2006. "Impact of a Large San Andreas Fault Earthquake on Tall Buildings in Southern California", EERI's 8th U.S. National Conference on Earthquake Engineering, San Francisco, April 2006. [PDF]
[C02] Conte, J. P., and Krishnan, S., 1995. "Modal Identification Method for Structures Subjected to Unmeasured Random Excitation", Proceedings of the 10th ASCE Engineering Mechanics Specialty Conference, Boulder, Colorado, 1995. [PDF]
[C01] Krishnan, S., 1994. "Cable-Net Bridge System", Submitted to the Student Paper Competition at the 11th Annual International Bridge Conference, 1994. [PDF]
[R18] Krishnan, S., and Muto, M., 2011. "Mechanism of Collapse, Sensitivity to Ground Motion Features, and Rapid Estimation of the Response of Tall Steel Moment Frame Buildings to Earthquake Excitation", Technical Report - CaltechEERL:EERL-2011-02, California Institute of Technology, Pasadena, California, 2011. [PDF]
[R17] Krishnan, S., 2010. "Case Study of the Collapse of a Water Tank", Technical Report - CaltechEERL:EERL-2010-01, California Institute of Technology, Pasadena, California, 2010. [PDF]
[R16] Krishnan, S., 2009. "On the Modeling of Elastic and Inelastic, Critical- And Post-Buckling Behavior of Slender Columns and Bracing Members", Technical Report - CaltechEERL:EERL-2009-03, California Institute of Technology, Pasadena, California, 2009. [PDF]
[R15] Krishnan, S., 2009. "Preparing for the Big One," Swaminathan Krishnan, Monograph on Disaster Risk Assessment and Management, Edited by Nasim Uddin and Alfredo H. S. Ang, Council on Disaster Risk Management, American Society of Civil Engineers, 2009. [PDF]
[R14] Krishnan, S., 2009. "FRAME3D V2.0 - A Program for the Three-Dimensional Nonlinear Time-History Analysis of Steel Buildings: User Guide", Technical Report - CaltechEERL:EERL-2009-04, California Institute of Technology, Pasadena, California, 2009. [PDF]
[R13] Krishnan, S. and Muto, M., 2008. "SHAKEOUT 2008: Tall Steel Moment Frame Building Response", Technical Report to the US Geological Survey, 2008. [PDF]
[R12] Porter, K., Krishnan, S., and Xu, X., 2006. "Analysis of Simultaneous Operational Failure of Critical Facilities due to Earthquake for a California Utility", Technical Report - CaltechEERL:EERL-2006-01, California Institute of Technology, Pasadena, California, 2006. [PDF]
[R11] Krishnan, S., Ji, C., Komatitsch, D., and Tromp, J., 2005. "Performance of 18-Story Steel Moment-Frame Buildings During a Large San Andreas Earthquake - A Southern California-Wide End-to-End Simulation", Technical Report - CaltechEERL:EERL-2005-01, California Institute of Technology, Pasadena, California, 2005. [PDF]
[R10] Krishnan, S., 2003. "FRAME3D - A Program for Three-Dimensional Nonlinear Time-History Analysis of Steel Buildings: User Guide", Technical Report - CaltechEERL:EERL-2003-03, California Institute of Technology, Pasadena, California, 2003. [PDF]
[R09] Krishnan, S., 2003. "Three-Dimensional Nonlinear Analysis of Tall Irregular Steel Buildings Subject to Strong Ground Motion", Technical Report - CaltechEERL:EERL-2003-01, California Institute of Technology, Pasadena, California, 2003. [PDF]
[R08] Krishnan, S. and Chang, K-L, 1999. "Tzu Chi Hall of Still Thought - Structural Report Addressing Questions on 100% Schematic Design Structural Report", Project No. 31203, Ove Arup and Partners, Los Angeles, California, August, 1999.
[R07] Krishnan, S. and Chang, K-L, 1999. "Tzu Chi Hall of Still Thought - 100% Schematic Design Structural Report", Project No. 31203, Ove Arup and Partners, Los Angeles, California, May, 1999.
[R06] Krishnan, S. and Zekioglu, A., 1999. "Seismic Assessment of Telecommunications Central Office Building", Project No. 31211, Ove Arup and Partners, Los Angeles, California, March, 1999.
[R05] Krishnan, S. and Zekioglu, A., 1998. "Seismic Evaluation of Administration Building, San Bernardino Valley College", A Report Submitted to the Federal Emergency Management Agency, Project No. 30740.95, Ove Arup and Partners, Los Angeles, California, January, 1998.
[R04] Krishnan, S., Zekioglu, A., Carroll, C., and Chang, K-L, 1998. "Seismic Survey and Assessment of Existing Buildings at San Bernardino Valley College and Performance-Based Evaluation of Administrative Building", Arup Seismic Seminar, Osaka, Japan, October, 1998.
[R03] Krishnan, S., 1994. "System Identification of Dynamic Structural Systems Using Continuous-Time Domain Methods", Master of Science Thesis, Rice University, Houston, Texas, 1994. [PDF]
[R02] Conte, J. P., Krishnan, S., and Kumar, S., 1993. "System Identification of Offshore Platforms", A Report on Research Sponsored by the Engineering Foundation, Department of Civil Engineering, Rice University, Houston, Texas, December 1993.
[R01] Krishnan, S., 1992. "Long-Span Cable-Supported Bridges", Bachelor of Technology Thesis, Department of Civil Engineering, Indian Institute of Technology, Madras, India, May 1992.