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Civil & Environmental Engineering
Engineering Sustainable Infrastructure for the Future      
  •  
Jonathan P. Stewart, Ph.D., P.E.     
Professor and Vice Chair
5731 Boelter Hall
Department of Civil and Environmental Engineering
University of California
Los Angeles, CA 90095-1593
jstewart@seas.ucla.edu
Phone: (310) 206-2990      Fax: (310) 206-2222

For ROSE School affiliation, please see here.
  Editor in Chief, Journal of Geotechnical
and Geoenvironmental Engineering

- Journal Information
- Online Manuscript Submission

Book Chapters  |  Archival Journal Articles  |  Conference Papers
Other Publications  |  Major Reports  |  Guidelines Documents for Design Professionals

 Book Chapters
1.  Kramer, S.L. and Stewart, J.P. (2004). Chapter 4: "Geotechnical Aspects of Seismic Hazards," in Earthquake Engineering: From Engineering Seismology to Performance-Based Engineering, Y. Bozorgnia and V.V. Bertero (editors), CRC
Press, 85 pages.
 Archival Journal Articles
52. Scasserra, G, Stewart. J.P., Bazzurro, P., Lanzo, G., and Mollaioli, F. (2009). “A comparison of NGA ground-motion prediction equations to Italian data,” Bull. Seism. Soc. Am., 99 (5), 2961-2978.
51. Goulet, C.A. and Stewart, J.P. (2009). “Pitfalls of deterministic application of nonlinear site factors in probabilistic assessment of ground motions,” Earthquake Spectra, 25 (3), 541-555.
50. Stewart, J.P., Hu, J., Kayen, R.E., Lembo, A.J. Jr., Collins, B.D., Davis, C.A., and O'Rourke, T.D. (2009). “Use of airborne and terrestrial LIDAR to detect ground displacement hazards to water systems,” Journal of Surveying Engineering, ASCE, 135 (3), 113-124.
49. Scasserra, G., Stewart, J.P., Kayen, R.E., and Lanzo, G. (2009). “Database for earthquake strong motion studies in Italy ,” Journal of Earthquake Engineering, 13 (6), 852-881.
48. Lemnitzer, A., Ahlberg, E.R., Nigbor, R.L., Shamsabadi, A., Wallace, J.W., and Stewart, J.P. (2009). “Lateral performance of full-scale bridge abutment wall with granular backfill,” J. Geotech. & Geoenv. Engrg., ASCE, 135 (4), 506-514.
47.  Graves, R.W., Aagaard, B.T., Hudnut, K.W., Star, L.M., Stewart, J.P., and Jordan, T.H. (2008). “Broadband simulations for Mw 7.8 southern San Andreas earthquakes: Ground motion sensitivity to rupture speed ,” Geophysical Research Letters, Vol. 35, L22302, doi:10.1029/2008GL035750
46.  Chu, D.B., Stewart, J.P. Boulanger, R.W., and Lin, P.-S. (2008). “Cyclic softening of low plasticity clay and its effect on seismic foundation performance,” J. Geotech. & Geoenv. Engrg., ASCE, 134 (11), 1595-1608.
45.  Duku, P.M., Stewart, J.P., Whang, D.H., and Yee, E. (2008). “Volumetric strains of clean sands subject to cyclic loads,” J. Geotech. & Geoenv. Engrg., ASCE, 134 (8), 1073-1085.
44.  Mikami, A., Stewart, J.P., and Kamiyama, M. (2008). “Effects of time series analysis protocols on transfer functions calculated from earthquake accelerograms,” Soil Dynamics and Earthquake Engineering, 28 (9), 695-706.
43.  Kwok, A.O., Stewart, J.P., and Hashash, Y.M.A. (2008). “Nonlinear ground response analysis of Turkey Flat shallow stiff soil site to strong ground motion,” Bull. Seism. Soc. Am., 98(1), 331-343.
42.  Stewart, J.P. and Tileylioglu, S. (2007). “Input ground motions for tall buildings with subterranean levels,” Structural Design of Tall and Special Buildings, 16(5), 543-557.
41.  Kwok, A.O., Stewart, J.P., Hashash, Y.M.A., Matasovic, N., Pyke, R., Wang, Z., and Yang, Z. (2007). “Use of exact solutions of wave propagation problems to guide implementation of nonlinear seismic ground response analysis procedures,” J. Geotech. & Geoenv. Engrg., ASCE, 133 (11), 1385-1398.
40.  Goulet, C.A., Haselton, C.B., Mitrani-Reiser, J., Beck, J.L., Deierlein, G.G., Porter, K.A., and Stewart, J.P. (2007). “Evaluation of the seismic performance of a code-conforming reinforced-concrete frame building - from seismic hazard to collapse safety and economic losses,” Earthquake Engineering and Structural Dynamics, 36 (13), 1973-1997.
39.  Duku, P.M., Stewart, J.P., Whang, D.H., Venugopal, R. (2007). “Digitally controlled simple shear apparatus for dynamic soil testing,” Geotech. Testing Journal, ASTM, 30 (5), 368-377.
38.  Chu, D.B., Stewart, J.P., Youd, T.L., and Chu, B.L. (2006). “Liquefaction-induced lateral spreading in near-fault regions during the 1999 Chi-Chi, Taiwan earthquake,” J. Geotech. & Geoenv. Engrg., ASCE, 132 (12), 1549-1565.
37.  Kempton, J.J. and Stewart, J.P. (2006). “Prediction equations for significant duration of earthquake ground motions considering site and near-source effects,” Earthquake Spectra, 22(4), 985-1013.
36.  Rathje, E.M., Stewart, J.P., Baturay, M.B., Bray, J.D., and Bardet, J.P. (2006). “Strong ground motions and damage patterns from the 1999 Duzce earthquake in Turkey,” Journal of Earthquake Engineering, 10(5), 693-724.
35.  Kwok, A.O. and Stewart, J.P. (2006). “Application of theoretical 1D amplification factors for evaluation of seismic site effects,” Bull. Seism. Soc. Am., 96 (4a), 1422-1436.
34.  Moss, R.E.S, Seed, R.B., Kayen, R.E., Stewart, J.P., Der Kiureghian, A., and Cetin, K.O. (2006). “CPT-based probabilistic and deterministic assessment of in situ seismic soil liquefaction potential,” J. Geotech. & Geoenv. Engrg., ASCE, 132 (8), 1032-1051.
33.  Janoyan, K., Wallace, J.W., and Stewart, J.P. (2006). “Full scale cyclic lateral load test of reinforced concrete shaft-column,” ACI Structural Journal, 103 (2), 178-187.
32.  Pradel, D.E., Smith, P.M., Stewart, J.P., and Raad, G. (2005). "Case history of landslide movement during the Northridge earthquake," J. Geotech. & Geoenv. Engrg., ASCE, 131 (11), 1360-1369.
31.  Stewart, J.P., Choi, Y., and Graves, R.W. (2005). "Uncertainty of southern California basin depth parameters," Bull. Seism. Soc. Am. 95 (5), 1988-1993.
30.  Stewart, J.P. and Sholtis, S.E. (2005). "Case study of strong ground motion variations across cut slope," Soil Dynamics and Earthquake Engineering, 25 (7-10), 539-545.
29.  Choi, Y., Stewart, J.P., and Graves, R.W. (2005). "Empirical model for basin effects that accounts for basin depth and source location," Bull. Seism. Soc. Am., 95 (4), 1412-1427.
28.  Yu, E., Whang, D.H., Conte, J.P., Stewart, J.P., and Wallace, J.W. (2005). "Forced-vibration testing of buildings using the linear shaker seismic simulation (LSSS) testing method," Earthquake Engineering and Structural Dynamics, 34, 737-761.
27.  Choi, Y. and Stewart, J.P. (2005). "Nonlinear site amplification as function of 30 m shear wave velocity," Earthquake Spectra, 21 (1), 1-30.
26.  Cetin, K.O., Youd, T.L., Seed, R.B., Bray, J.D., Stewart, J.P., Durgunoglu, T., Lettis, W., and Yilmaz, M.T. (2004). "Liquefaction-induced lateral spreading at Izmit Bay during the Kocaeli (Izmit) -Turkey earthquake," J. Geotech. & Geoenv. Engrg., ASCE, 130 (12), 1300-1313.
25.  Whang, D.H., Stewart, J.P., and Bray, J.D. (2004). "Effect of compaction conditions on the seismic compression of compacted fill soils," Geotechnical Testing Journal, ASTM, 27 (4), 371-379.
24.  Chu, D.B., Stewart, J.P., Lee, S., Tsai, J.S., Lin, P.S., Chu, B.L., Seed, R.B., Hsu, S.C., Yu, M.S., and Wang, M.C.H. (2004). "Documentation of soil conditions at liquefaction and non-liquefaction sites from 1999 Chi-Chi (Taiwan) earthquake," Soil Dynamics and Earthquake Engineering, 24 (9-10), 647-657.
23.  Bray, J.D., Sancio, R.B., Durgunoðlu, H.T., Önalp, A., Youd, T.L., Stewart, J.P., Seed, R.B., Cetin, O.K., Bol, E., Baturay, M.B., Christensen, C., and Karadayýlar, T. (2004). "Subsurface characterization at ground failure sites in Adapazari, Turkey," J. Geotech.. & Geoenv. Engrg., ASCE, 130 (7), 673-685.
22.  Stewart, J.P., Smith, P.M., Whang, D.W., and Bray, J.D. (2004). "Seismic compression of two compacted earth fills shaken by the 1994 Northridge earthquake," J. Geotech. & Geoenv. Engrg., ASCE, 130 (5), 461-476.
21.  Baturay, M.B. and Stewart, J.P. (2003). "Uncertainty and bias in ground motion estimates from ground response analyses,"Bull. Seism. Soc. Am., 93 (5), 2025-2042.
20.  Stewart, J.P., Blake, T.M., and Hollingsworth, R.A. (2003). "A screen analysis procedure for seismic slope stability," Earthquake Spectra, 19 (3), 697-712.
19.  Stewart, J.P., Kim, S., Bielak, J., Dobry, R., and Power, M. (2003). "Revisions to soil structure interaction procedures in NEHRP design provisions," Earthquake Spectra, 19 (3), 677-696.
18.  Kim, S. and Stewart, J.P. (2003). "Kinematic soil-structure interaction from strong motion recordings," J. Geotech.. & Geoenv. Engrg., ASCE, 129 (4), 323-335.
17.  Stewart, J.P., Liu, A.H., and Choi, Y. (2003). "Amplification factors for spectral acceleration in tectonically active regions," Bull. Seism. Soc. Am., 93 (1), 332-352.
16.  Stewart, J.P., Chiou, S.-J., Bray, J.D., Graves, R.W., Somerville, P.G., and Abrahamson, N.A. (2002). "Ground motion evaluation procedures for performance based design," Soil Dynamics and Earthquake Engineering, 22 (9-12), 765-772.
15.  Sancio, R.B., Bray, J.D., Stewart, J.P., Youd, T.L., Durgunoglu, H.T., Önalp, A., Seed, R.B., Christensen, C., Baturay, M.B., and Karadayilar, T. (2002). “Correlation between ground failure and soil conditions in Adapazari, Turkey,”Soil Dynamics and Earthquake Engineering, 22 (9-12), 1093-1102.
14.  Stewart, J.P. and Hough, S.E.: principal authors (2002). Chapter 6: Damage Patterns. Bhuj, India Earthquake of January 26, 2001 Reconnaissance Report, S.K. Jain, W.R. Lettis, C.V.R. Mutry, and J.P. Bardet, eds., Earthquake Spectra, Supplement A to Vol. 18, 67-75.
13.  Bardet, J.P., Rathje, E.M., and Stewart, J.P.: principal authors (2002). Chapter 8: Ports. Bhuj, India Earthquake of January 26, 2001 Reconnaissance Report, S.K. Jain, W.R. Lettis, C.V.R. Mutry, and J.P. Bardet, eds., Earthquake Spectra, Supplement A to Vol. 18, 101-130.
12.  Liu, A.H., Stewart, J.P., Abrahamson, N.A., Moriwaki, Y. (2001). "Equivalent number of uniform stress cycles for soil liquefaction analysis," J. Geotech. & Geoenv. Engrg., ASCE, 127 (12), 1017-1026.
11.  Stewart, J.P., Bray, J.D., McMahon, D.J., Smith, P.M., and Kropp, A.L. (2001). "Seismic performance of hillside fills," J. Geotech. & Geoenv. Engrg., ASCE, 127 (11), 905-919.
10.  Stewart, J.P.: coordinator (2001). Chapter 4: Soil liquefaction. Chi-Chi, Taiwan Earthquake of September 21, 1999 Reconnaissance Report, J. Uzarski and C. Arnold, eds., Earthquake Spectra, Supplement A to Vol. 17, 37-60.
9.  Bray, J.D. and Stewart, J.P.: coordinators (2000). Chapter 8: Damage patterns and foundation performance in Adapazari. Kocaeli, Turkey Earthquake of August 17, 1999 Reconnaissance Report, T.L. Youd, J.P. Bardet, and J.D. Bray, eds., Earthquake Spectra, Supplement A to Vol. 16, 163-189.
8.  Stewart, J.P. (2000). "Variations between foundation-level and free-field earthquake ground motions," Earthquake Spectra, 16 (2), 511-532.
7.  Stewart, J.P., Conte, J.P., and Aiken, I.D. (1999). "Observed behavior of seismically isolated buildings," J. Struct. Engrg., ASCE, 125 (9), 955-964.
6.  Stewart, J.P., Fenves, G.L. and Seed, R.B. (1999). "Seismic soil-structure interaction in buildings. I: Analytical aspects," J. Geotech. & Geoenv. Engrg., ASCE, 125 (1), 26-37.
5.  Stewart, J.P., Seed, R.B., and Fenves, G.L. (1999). "Seismic soil-structure interaction in buildings. II: Empirical findings," J. Geotech. & Geoenv. Engrg., ASCE, 125 (1), 38-48.
4.  Stewart, J.P. and Fenves, G.L. (1998). "System identification for evaluating soil-structure interaction effects in buildings from strong motion recordings," Earthquake Engineering and Structural Dynamics, 27 (8), 869-885.
3.  Harder, L.F. and Stewart, J.P. (1996). "Failure of Tapo Canyon Tailings Dam," J. of Performance of Constructed Facilities, ASCE, 10(3), 109-114.
2.  Stewart, J.P., Seed, R.B., and Bray, J.D. (1996). "Incidents of ground failure from the Northridge earthquake," Bull. Seism. Soc. Am., 86 (1B), S300-S318.
1.  Stewart, J.P., Chang, S.W., Bray, J.D., Seed, R.B., Sitar, N., and Riemer, M.F. (1995). "A report on geotechnical aspects of the January 17, 1994 Northridge earthquake," Seismological Research Letters, 66 (3), May/June, 7-19.
 Conference Papers
58.  Anagnos, T., Comerio, M.C., Goulet, C., Na, H., Steele, J., and Stewart, J.P. (2008). “Los Angeles inventory of nonductile concrete buildings for analysis of seismic collapse risk hazards,” Proc 14th World Conf. Earthquake Eng.,, Oct. 12-17, 2008, Beijing, China, Paper 02-0072.
57.  Star, L.M., Stewart, J.P., Graves, R.W., and Hudnut, K.W. (2008). “Validation against NGA empirical model of simulated motions for M7.8 rupture of San Andreas fault,” Proc 14th World Conf. Earthquake Eng.,, Oct. 12-17, 2008, Beijing, China, Paper 02-0070.
56.  Naeim, F., Tileylioglu, S., Alimoradi, A., and Stewart, J.P. (2008). “Impact of foundation modeling on the accuracy of response history analysis of a tall building,” Proc. SMIP2008 Seminar on Utilization of Strong Motion Data,, California Strong Motion Instrumentation Program, Sacramento, CA, 19-55.
55.  Scasserra G., Stewart J.P., Kayen R., Lanzo G. (2008). "Site characterization of Italian strong motion recording stations,” in Proceedings of the 2008 Seismic Engineering Conference commemorating the 1908 Messina and Reggio Calabria Earthquake,, MERCEA’08, A. Santini and N. Moraci (eds), July 8-11, Reggio Calabria, Italy, Vol. 1, 338-345.
54.  Scasserra G., Lanzo G., Stewart J.P., D’Elia B. (2008). "SISMA (Site of Italian Strong Motion Accelerograms): a web-database of ground motion recordings for engineering applications,” in Proceedings of the 2008 Seismic Engineering Conference commemorating the 1908 Messina and Reggio Calabria Earthquake,, MERCEA’08, A. Santini and N. Moraci (eds), July 8-11, Reggio Calabria, Italy, Vol. 2, 1649-1656.
53.  Stewart, J.P. and Kwok, A.O. (2008). "Nonlinear seismic ground response analysis: code usage protocols and verification against vertical array data,” in Geotechnical Engineering and Soil Dynamics IV,, May 18-22, 2008, Sacramento, CA, ASCE Geotechnical Special Publication No. 181, D. Zeng, M.T. Manzari, and D.R. Hiltunen (eds.), 24 pages (electronic file).
52.  Ancheta, T.D., Stewart, J.P., Abrahamson, N.A., and Nigbor, R.L. (2008). “Preliminary estimation of seismically induced ground strains from spatially variable ground motions,” in Geotechnical Engineering and Soil Dynamics IV,, May 18-22, 2008, Sacramento, CA, ASCE Geotechnical Special Publication No. 181, D. Zeng, M.T. Manzari, and D.R. Hiltunen (eds.), 10 pages (electronic file).
51.  Tileylioglu, S., Nigbor, R.L., and Stewart, J.P. (2008). “Determination of soil-structure interaction effects for a model test structure using parametric system identification procedures,” in Geotechnical Engineering and Soil Dynamics IV,, May 18-22, 2008, Sacramento, CA, ASCE Geotechnical Special Publication No. 181, D. Zeng, M.T. Manzari, and D.R. Hiltunen (eds.), 10 pages (electronic file).
50.  Chiu, P., Pradel, D.E., Kwok, A.O., and Stewart, J.P. (2008). “Seismic response analyses for the Silicon Valley Rapid Transit Project,” in Geotechnical Engineering and Soil Dynamics IV,, May 18-22, 2008, Sacramento, CA, ASCE Geotechnical Special Publication No. 181, D. Zeng, M.T. Manzari, and D.R. Hiltunen (eds.), 10 pages (electronic file).
49.  Chu, D.B., Stewart, J.P., Lin, P.S., and Boulanger, R.W. (2007). “Cyclic softening of low plasticity clay and its effect on seismic foundation performance,” Proc. 4th Int. Conf. Earthquake Geotechnical Engineering, Thessaloniki, Greece, Paper 1490.
48.  Goulet, C.A., Stewart, J. P., Bazzurro, P., Field, E. H. (2007) “Integration of site-specific ground response analysis results into probabilistic seismic hazard analyses.” Proc. 4th Int. Conf. Earthquake Geotechnical Engineering, Thessaloniki, Greece, Paper 1486.
47.  Goulet, C.A. and Stewart J.P. (2007) “Probabilistic versus deterministic implementation of nonlinear site factors in seismic hazard analysis,” Proc. Asian-Pacific Network for Centers for Earthquake Engineering Research (ANCER) conference. Hong Kong, China, May 29-30 2007, Paper No.
46.  Stewart, J.P. and Tileylioglu, S. (2007). “Input ground motions for tall buildings with subterranean levels,” Proc. LA Tall Buildings Structural Design Council Annual Meeting, Los Angeles, CA, 28-41.
45.  Chu, D.B., Stewart, J.P., Lin, P.S., and Boulanger, R.W. (2006). “Cyclic softening of low plasticity clay and its effect on seismic foundation performance,” Proc. 4th International Conference on Earthquake Engineering, Taipai, Taiwan, Paper No. 287.
44.  Kwok, O.A., Stewart, J.P., Hashash, Y.M.A., Matasovic, M., Pyke, R., Wang, Z., and Yang, Z. (2006). “Utilizing nonlinear seismic ground response analysis for Turkey Flat blind predictions,” 3rd Int. Sym. on the Effects of Surface Geology on Seismic Motion, Grenoble, France, Paper No. 50.
43.  Goulet, C., Stewart, J., Bazzurro, P., and Pelli, F. (2006). “Integration of ground response analysis results into probabilistic assessment of site specific ground shaking potential,” 3rd Int. Sym. on the Effects of Surface Geology on Seismic Motion, Grenoble, France, Paper No. 87.
42.  Duku, P. M., Stewart, J. P., and Whang, D. H. (2006). “Effect of post-compaction ageing on seismic compression of fine-grained soils,” in Ground Modification and Seismic Mitigation, Proc. of Sessions of GeoShanghai Conference, June 6-8, 2006, Shanghai, China, ASCE Geotechnical Special Publication No.152, A. Porbaha, S.-L. Shen, J. Wartman, and J.-C. Chai, (eds.), 411-416.
41.  Kwok, O.A., Stewart, J.P., Hashash, Y.M.A., Matasovic, M., Pyke, R., Wang, Z., and Yang, Z. (2006). “Practical implementation of analysis routines for nonlinear seismic ground response analysis,” Proc. 8th U.S. National Conference on Earthquake Engineering, April 18-22, San Francisco, CA, Paper 546.
40.  Goulet, C., Haselton, C.B., Mitrani-Reiser, J., Stewart, J.P., Taciroglu, E., Deierlein, G. (2006). “Evaluation of the seismic performance of a code-conforming reinforced concrete frame building – Part I: Ground motion selection and structural collapse simulation,” Proc. 8th U.S. National Conference on Earthquake Engineering, April 18-22, San Francisco, CA, Paper 1576.
39.  Mikami, A., Stewart, J.P., Ostadan, F., Crouse, C.B. (2006). “Representation of ground motion incoherence for the analysis of kinematic soil-structure interaction,” Proc. 8th U.S. National Conference on Earthquake Engineering, April 18-22, San Francisco, CA, Paper 1071.
38.  Scasserra, G., Lanzo, G., Mollaioli, F., Stewart, J.P., Bazzurro, P., Decanini, L.D. (2006). “Preliminary comparison of ground motions in Italy with ground motion prediction equations for active tectonic regions ,” Proc. 8th U.S. National Conference on Earthquake Engineering, April 18-22, San Francisco, CA, Paper 1824.
37.  Stewart, J.P., Goulet, C., Bazzurro, P., and Claassen, R. (2006). “Implementation of 1D ground response analysis in probabilistic assessments of ground shaking potential,” in GeoCongress 2006 – Geotechnical Engineering in the Information Technology Age, D.J. DeGroot, J.T. DeJong, J.D. Frost, and L.G. Baise (eds.), Atlanta, GA, Feb. 26 – March 1, 6 pages (electronic file).
36.  Whang, D.H., Moyneur, M.S., Duku, P., and Stewart, J.P. (2005). “Seismic compression behavior of nonplastic silty sands,” in Proceedings of an International Symposium on Advanced Experimental Unsaturated Soil Mechanics, A. Tarantino, E. Romero, and Y.J. Cui (eds.), Trento, Italy, June 27-29, A.A. Balkema Publishers, pp 257-263.
35.  Stewart, J.P., Whang, D.H., Nigbor, R.L., Wallace, J.W., and Kim, S. (2005). "Role of field performance data in development and calibration of seismic soil-structure interaction analysis procedures," in Soil-Structure Interaction: Calculation Methods and Engineering Practice, Proc. of the International Geotechnical Conference Dedicated to the Tercentenary of St. Petersburg, St. Petersburg, Russia, V.M. Ulitsky (ed.), Volume 1, 47-58.
34.  Moss, R.E.S., Seed, R.B., Kayen, R.E., Stewart, J.P., and Tokimatsu, K. (2005). "Probabilistic liquefaction triggering based on the cone penetration test," in Earthquake Engineering and Soil Dynamics, Proc. of Sessions of the Geo-Frontiers 2005 Congress, ASCE Geotech. Special Publication 133, R.W. Boulanger, M. Deewolder, N. Gucunski, C.H. Juang, M.E. Kalinsky, S.L. Kramer, M. Manzari, and J. Pauschke (eds.), 13 pages (electronic file).
33.  Stewart, J.P., Whang, D.H., Wallace, J.W., and Nigbor, R.L. (2005). "Field testing capabilities of the NEES@UCLA equipment site for soil-structure interaction applications", in Earthquake Engineering and Soil Dynamics, Proc. of Sessions of the Geo-Frontiers 2005 Congress, ASCE Geotech. Special Publication 133, R.W. Boulanger, M. Deewolder, N. Gucunski, C.H. Juang, M.E. Kalinsky, S.L. Kramer, M. Manzari, and J. Pauschke (eds.), 9 pages (electronic file).
32.  Comartin, C.D., Aschheim, M., Guyader, A., Hamburger, R., Hanson, R., Holmes, W., Iwan, W., Mahoney, M., Miranda, E., Moehle, J., Rojahn, C., and Stewart, J. (2004). "A summary of FEMA-440: Improvement of nonlinear static seismic analysis procedures," Proc. 13th World Conf. Earthquake Engrg., Vancouver, BC, Canada, Paper 1476.
31.  Yu, E., Whang, D.H., Wallace, J. W., Stewart, J. P., and Venogupal, R. (2004). "Force - vibration testing of buildings using the linear shaker seismic simulation (LSSS) testing method," Proc. 13th World Conf. Earthquake Engrg., Vancouver, BC, Canada, Paper 2206.
30.  Wallace, J. W., Stewart, J. P., Whang, D.H., Yu, E., Lei, Y., and Kang, S. (2004). "Integration of the NeesGrid into the NEES@UCLA field testing site," Proc. 13th World Conf. Earthquake Engrg., Vancouver, BC, Canada, Paper 486.
29.  Stewart, J.P., Comartin, C., and Moehle, J.P. (2004). "Implementation of soil-structure interaction models in performance based design procedures," Proc. 13th World Conf. Earthquake Engrg., Vancouver, B.C., Paper 1546.
28.  Stewart, J.P. Choi, Y., Baturay, M.B., and Liu, A.H. (2004). "Models for incorporating site effects into probabilistic seismic hazard analyses," Proc. 13th World Conf. Earthquake Engrg., Vancouver, B.C., Paper 1126.
27.  Stewart, J.P., Comartin, C., and Moehle, J.P. (2004). "Implementation of soil-structure interaction models in performance based design procedures," Proc. 3rd UJNR Workshop on Soil-Structure Interaction, M. Celebi, M.I. Todorovska, I. Okawa, and M. Iiba (editors), Vallombrosa Center, Menlo Park, California, Paper IV-3, 20 pgs.
26.  Stewart, J.P., Whang, D.H., and Wallace, J.W. (2004). "Field testing capabilities of the nees@UCLA equipment site for soil-structure interaction applications," Proc. 3rd UJNR Workshop on Soil-Structure Interaction, M. Celebi, M.I. Todorovska, I. Okawa, and M. Iiba (editors), Vallombrosa Center, Menlo Park, California, Paper III-2, 8 pgs.
25.  Stewart, J.P. and Baturay, M.B. (2004). "A comparison of site-specific and empirical methods for site response evaluation,"Proc. Int. Workshop on Uncertainties in Nonlinear Soil Properties and their Impact on Modeling Dynamic Soil Response, PEER Center Headquarters, Richmond, CA, Paper 1-2, 6 pgs.
24.  Stewart, J.P. and Sholtis, S.E. (2004). "Case study of strong ground motion variations across cut slope," Proc. 11th Int. Conf. Soil Dyn. Earthquake Engrg. & 3rd Int. Conf. Earthquake Geotech. Engrg., D. Doolin, A. Kammerer, T. Nogami, R.B. Seed, and I. Towhata (editors), Berkeley, CA, Vol. 1, 917-922.
23.  Qiu, T., Fox, P.J., Janoyan, K.D., Stewart, J.P. and Wallace, J.W. (2003). "Response and analysis of a large diameter drilled shaft subjected to lateral loading," in GeoSupport 2004: Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems, ASCE Geotech. Special Publication No. 124, J. P. Turner and P.W. Mayne (eds.), 613-624.
22.  Conte, J.P., Pandit, H., Stewart, J.P., and Wallace, J.W. (2003). "Ground motion intensity measures for performance-based earthquake engineering," Proc. 9th Int. Conf. on Applications of Statistics and Probability in Civil Engineering, A. Der Kiureghian, S. Madanat and J.M. Pestana (editors), Vol. 2, 1465-1472, Millpress.
21.  Stewart, J.P., Chu, D.B., Lee, S., Tsai, J.S., Lin, P.S., Chu, B.L., Moss, R.E.S., Seed, R.B., Hsu, S.C., Yu, M.S., and Wang, M.C.H. (2003). "Liquefaction and non-liquefaction from 1999 Chi-Chi, Taiwan, earthquake," in Advancing Mitigation Technologies and Disaster Response for Lifeline Systems, Technical Council on Lifeline Earthquake Engineering, Monograph No. 25, J.E. Beavers (ed.), 1021-1030.
20.  Taciroglu, E., Rha, C., Stewart, J.P., and Wallace, J.W. (2003). "Robust numerical models for cyclic response of columns embedded in soil," Proc. 16th Engineering Mechanics Conf., ASCE, Seattle, WA, Paper 830, 8 pgs.
19.  Stewart, J.P. and Whang, D.H. (2003). "Simplified procedure to estimate ground settlement from seismic compression in compacted soils," Proc. 2003 Pacific Conference on Earthquake Engineering, Christchurch, New Zealand, Paper 46.
18.  Stewart, J.P., Whang, D.H., and Smith, P.M. (2002). "Seismic compression: effects on lifelines and updated analysis method," Proc. 8th US-Japan Workshop on Earthquake Resistant Design of Lifeline Facilities and Countermeasures against Liquefaction, M. Hamada, J.-P. Bardet, and T.D. O’Rourke (editors), Report No. MCEER-03-0003, Multidisciplinary Center for Earthquake Engineering Research, Buffalo, NY, pages 251-264.
17.  Stewart, J.P., Whang, D.H., Fox, P.J., and Wallace, J.W. (2002). "Applications of UCLA NEES equipment for testing of soil-foundation-structure interaction," Proc. 7th U.S. National Conference on Earthquake Engineering, Boston, MA, Paper 00018.
16.  Lermitte, S.P., Janoyan, K., Stewart, J.P. and Wallace, J.W. (2002). "Experimental and analytical studies of full-scale drilled shaft bridge columns," Proc. 7th U.S. National Conference on Earthquake Engineering, Boston, MA, Paper 00149.
15.  Stewart, J.P., Whang, D.H., Fox, P.J., and Wallace, J.W. (2001). "Full-scale simulation of seismic structure-foundation-soil interaction," Proc. International Workshop on Earthquake Simulation in Geotechnical Engineering, X. Zeng (ed.), Cleveland, OH, 10 pgs.
14.  Janoyan, K., Stewart, J.P., and Wallace, J.W. (2001). "Analysis of p-y curves from lateral load test of large diameter drilled shaft in stiff clay," Caltrans 6th Seismic Design Workshop, Sacramento, CA. Paper 5-105.
13.  Stewart, J.P. and Baturay, M.B. (2001). "Uncertainties and residuals in ground motion estimates at soil sites,"Proc. 4th Int. Conf. Recent Advances in Geotech. Eqk. Engrg. Soil Dyn., S. Prakash (ed.), San Diego, CA. Paper 3.14.
12.  Janoyan, K., Stewart, J.P., and Wallace, J.W. (2001). "Preliminary test results for full scale drilled shaft under cyclic lateral loading," Proc. 4th Int. Conf. Recent Advances in Geotech. Eqk. Engrg. Soil Dyn., S. Prakash (ed.), San Diego, CA. Paper 9.34.
11.  Stewart, J.P., Chu, D.B., Seed, R.B., Ju, J.W., Perkins, W.J., Boulanger, R.W., Chen, Y.C., Ou, C.Y., Sun, J., and Yu, M.S. (2000). "Incidents of soil liquefaction from the 921 Chi Chi (Taiwan) earthquake,"International Workshop on Annual Commemoration of Chi-Chi earthquake, C.-H. Loh and W-I. Liao (editors), Taipei, Taiwan, 119-130.
10.  Seed, R.B., Stewart, J.P., Moss, R.E.S., and Cetin, O. (2000). "Lessons and opportunities regarding liquefaction presented by the 921 earthquake," International Workshop on Annual Commemoration of Chi-Chi earthquake, C.-H. Loh and W-I. Liao (editors), Taipei, Taiwan, 65-73.
9.  Stewart, J.P. and Liu, A.H. (2000). "Ground motion amplification as a function of surface geology," Proc. SMIP2000 Seminar on Utilization of Strong Motion Data, California Strong Motion Instrumentation Program, Sacramento, CA, 1-22.
8.  Whang, D., Riemer, M.F., Bray, J.D., Stewart, J.P., and Smith, P.M. (2000). "Characterization of seismic-compression of some compacted fills," in Advances in Unsaturated Geotechnics, ASCE Geotech. Special Publication No. 99, C. D. Shackelford, S. L. Houston, and N-Y. Chang (eds.), 180-194.
7.  Stewart, J.P. (1999). "Evaluation of soil-structure interaction effects from strong motion recordings," Proc. SMIP99 Seminar on Utilization of Strong Motion Data, California Strong Motion Instrumentation Program, Sacramento, CA, 83-96.
6.  Stewart, J.P. (1999). "Empirical assessment of SSI effects from strong motion recordings," Proc. UJNR Workshop on Soil-Structure Interaction, M. Celebi and I. Okawa (eds.), U.S. Geological Survey Open File Report 99-142, Menlo Park, CA, September 22-23, 1998, 21 pages.
5.  Woodworth, M., Chang, S.W., Baturay, M.B., and Stewart, J.P. (1998). "Repeatability of site response," Proc. 2nd Int. Symposium on the Effects of Surface Geology on Seismic Motion, Irikura, K. Kudo, H. Okada, and T. Sasatani (editors), Yokohama, Japan, Balkema Publishing Company, Rotterdam, pp 447-454.
4.  Stewart, J.P., Bray, J.D., McMahon, D.J., and Kropp, A.L. (1998). "Structural fill performance during the 1994 Northridge earthquake," Proc. NEHRP Conference and Workshop on Research on the Northridge, California Earthquake of January 17, 1994, California Universities for Research in Earthquake Engineering, Richmond, CA, Vol. II, pp 173-180.
3.  Stewart, J.P. and Kim, S. (1998). "Empirical verification of soil-structure interaction provisions in building codes," in Geotechnical Earthquake Engineering and Soil Dynamics-III, ASCE Geotechnical Special Publication No. 75, P. Dakoulas, M. Yegian, and R.D. Holtz (eds.), 1259-1270.
2.  Sitar, N., Ashford, S.A., Stewart, J.P., Nova-Roessig, L. (1997). "Seismic response of steep natural slopes, structural fills, and reinforced soil slopes and walls," in Seismic Behavior of Ground and Geotechnical Structures, S. E. Pinto (editor), 14th Int. Conf. on Soil Mechanics and Foundation Engrg., Hamburg Germany, 341-350.
1.  McMahon, D.J., Stewart, J.P., Kropp, A.L., and Bray, J.D. (1995). "The Performance of hillside fills during the Northridge earthquake," 3rd Int. Conf. on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, S. Prakash (ed.), St. Louis, Missouri, April, Vol. III, 1403-1409.
 Other Publications
4.  Janoyan, K, Stewart, J. P., and Wallace, J.W. (2000). "Full-scale cyclic lateral load testing of reinforced concrete drilled shaft-column," Foundation Drilling, ADSC, 39(5), 13-17, June/July.
3.  Stewart, J.P., Thomas, P.A., Seed, R.B., and Bray, J.D. (1994). "Geotechnical aspects of the Northridge earthquake of January 17, 1994: Soil liquefaction and dynamic ground compaction," Geotechnical News, 12 (2), 53-56.
2.  Stewart, J.P., Seed, R.B., Riemer, M.F., and Zornberg, J.G. (1994).
"Geotechnical aspects of the Northridge earthquake of January 17, 1994: Geotechnical structures," Geotechnical News, 12 (2), 59-62.
1.  Stewart, J.P., (1990). "October 17 revisited," California Engineer, 69 (1), 12-17.
 Major Reports
25.  Di Capua, G., R.E. Kayen, D.S. Kieffer, E. Button, G. Biscontin, G. Scasserra, G. Lanzo, P. Tommasi, A. Pagliaroli, F. Silvestri, A. d'Onofrio, A.L. Simonelli, R. Puglia, G. Mylonakis, G. Athanasopoulos, V. Vlahakis, and J.P. Stewart (2009). "Preliminary Report on the Seismological and Geotechnical Aspects of the April 6 2009 L'Aquila Earthquake in Central Italy," GEER Association Report No. GEER-016, Web report.
24.  Haselton, C.B. (editor); J.W. Baker, Y. Bozorgnia, C.A. Goulet, C.B. Haselton, E. Kalkan, N. Luco, T. Shantz, N. Shome, J.P. Stewart, P. Tothong, J. Watson-Lamprey, and F. Zareian (contributing authors) (2009)."Evaluation of ground motion selection and modification methods: Predicting median interstory drift response of buildings," Report PEER 2009/01, Pacific Earthquake Engineering Research Center, University of California, Berkeley.
23.  Stewart, J.P., Kwok, A.O., Hashash, Y.M.A., Matasovic, N., Pyke, R., Wang, Z., and Yang, Z. (2008)."Benchmarking of nonlinear geotechnical ground response analysis procedures," Report PEER 2008/04, Pacific Earthquake Engineering Research Center, University of California, Berkeley.
22.  Margaris, B., C. Papaioannou, N. Theodoulidis, A. Savvaidis, N. Klimis, K. Makra, C. Karakostas, V. Lekidis, T. Makarios, T. Salonikios, M. Demosthenus, G. Athanasopoulos, G. Mylonakis, C. Papantonopoulos, V. Efthymiadou, P. Kloukinas, I. Ordonez, V. Vlachakis, and J. P. Stewart (2008). "Preliminary report on the principal seismological and engineering aspects of the Mw = 6.5 Achaia-Ilia (Greece) earthquake on 8 June 2008," GEER Association Report No. GEER-013, Web report.
21.  Stewart, J.P., Scasserra, G., Lanzo, G., Mollaioli, F., and Bazzurro, P. (2008)."Critical evaluation of Italian strong motion data and comparison to NGA ground motion prediction equations," Report No. UCLA SGEL 2008/03, Structural and Geotechnical Engineering Laboratory, University of California, Los Angeles.
20.  Kayen, R.E., Scasserra, G., Stewart, J.P., and Lanzo, G. (2008)."Shear wave structure of Umbria and Marche, Italy, strong motion seismometer sites affected by the 1997-98 Umbria-Marche, Italy, earthquake sequence," Report No. USGS/OFR 2008-1010, United States Geological Survey, Menlo Park, CA.
19.  Haselton, C.B., Goulet, C.A., Mitrani-Reiser, J., Beck, J.L., Deierlein, G.G., Porter, K.A., Stewart, J.P., and Taciroglu, E. (2007). An assessment to benchmark the seismic performance of a code-conforming reinforced concrete moment-frame building Report PEER 2007/12, Pacific Earthquake Engineering Research Center, University of California, Berkeley.
18.  Gajan, S., Hutchinson, T.C., Kutter, B.L., Raychowdhury, P., Ugalde, J.A., and Stewart, J.P. (2008). "Numerical models for analysis and performance-based design of shallow foundations subjected to seismic loading," Report PEER 2007/04, Pacific Earthquake Engineering Research Center, University of California, Berkeley.
17.  Stewart, J.P., E. Taciroglu, J.W. Wallace, E.R. Ahlberg, A. Lemnitzer, C. Rha, P.K. Tehrani, S. Keowen, R.L. Nigbor, and A. Salamanca (2007)."Full scale cyclic testing of foundation support systems for highway bridges. Part II: Abutment Backwalls ," Report No. UCLA-SGEL 2007/02, Structural and Geotechnical Engineering Laboratory, University of California, Los Angeles.
16.  Stewart, J.P., E. Taciroglu, J.W. Wallace, E.R. Ahlberg, A. Lemnitzer, C. Rha, P.K. Tehrani, S. Keowen, R.L. Nigbor, and A. Salamanca (2007)."Full scale cyclic testing of foundation support systems for highway bridges. Part I: Drilled shaft foundations," Report No. UCLA-SGEL 2007/01, Structural and Geotechnical Engineering Laboratory, University of California, Los Angeles.
15.  Moss, R.E.S., Seed, R.B., Kayen, R.E., Stewart, J.P., and Der Kiureghian, A. (2006)."CPT-based probabilistic assessment of seismic soil liquefaction potential," Rpt. No. PEER-2005/15, Pacific Earthquake Engineering Research Center, Univ. of California, Berkeley.
14.  Stewart, J.P. and Wren, J.R. (2005). Section 4: "Geotechnical Aspects" [approx 10 MB], in Engineering Guidelines for the Assessment and Repair of Earthquake Damage in Residential Woodframe Buildings, CUREE Publication No. EDA-06, Consortium of Universities for Research in Earthquake Engineering, Richmond, CA.
13.  Stewart, J.P., Choi, Y., and Graves, R.W. (2005)."Empirical characterization of effects of site conditions on strong ground motion," Rpt. No. PEER-2005/01, Pacific Earthquake Engineering Research Center, Univ. of California, Berkeley.
12.  Stewart, J.P., Whang, D.H., Moyneur, M., and Duku, P. (2004). "Seismic compression of as-compacted fill soils with variable levels of fines content and fines plasticity," CUREE Publication No. EDA-05, Consortium of Universities for Research in Earthquake Engineering, Richmond, CA, July.
11.  Stewart, J. P. and Baturay, M.B. (2003). "Uncertainty and bias in ground motion estimates from ground response analyses," Rpt. No. PEER-2003/02, Pacific Earthquake Engineering Research Center, Univ. of California, Berkeley, June.
10.  Stewart, J.P., Smith, P.M., Whang, D.H., and Bray, J.D. (2002). "Documentation and analysis of field case histories of seismic compression during the 1994 Northridge, California, earthquake," Rpt. No. PEER-2002/09, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 210 pgs.
9.  Blake, T.F., Hollingsworth, R.A., and Stewart, J.P., editors (2002). "Recommended procedures for implementation of DMG Special Publication 117 Guidelines for analyzing and mitigating landslide hazards in California," Southern California Earthquake Center, University of Southern California, Los Angeles, California, 130 pgs.
8.  Wallace, J.W., Fox, P.J., Stewart, J.P., Janoyan, K., Qiu, T., and Lermitte, S. (2001). "Cyclic large deflection testing of shaft bridges. Part I-Background and field test results and Part II-Analytical Studies,"
Report to California Department of Transportation, December.
7.  Stewart, J.P., Liu, A.H., Choi, Y., and Baturay, M.B. (2001). "Amplification factors for spectral acceleration in active regions,"
Rpt. No. PEER-2001/10, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 132 pgs.
6.  Stewart, J.P., Chiou, S.-J., Bray, J.D., Somerville, P.G., Graves, R.W., and Abrahamson, N.A. (2001). "Ground motion evaluation procedures for performance based design," Rpt. No. PEER-2001/09, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 229 pgs.
5.  Wallace, J.W., Stewart, J.P., and Whittaker, A.S. (1999). "Building vulnerability studies: modeling and evaluation of tilt-up and steel reinforced concrete buildings," Rpt. No. PEER-1999/13, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 207 pgs.
4.  Stewart, J.P., Seed, R.B. and Fenves, G.L. (1998). "Empirical evaluation of inertial soil-structure interaction effects," Rpt. No. PEER-98/07, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 205 pgs.
3.  Stewart, J.P. and Stewart, A.F. (1997). "Analysis of soil-structure interaction effects on building response from earthquake strong motion recordings at 58 sites," Rpt. No. UCB/EERC-97/01, Earthquake Engineering Research Center, University of California, Berkeley, February, 742 pgs.
2.  Stewart, J.P., Bray, J.D., Seed, R.B., and Sitar, N., editors (1994). "Preliminary report on the principal geotechnical aspects of the January 17, 1994 Northridge earthquake," Rpt. No. UCB/EERC-94/08, Earthquake Engineering Research Center, University of California, June, 245 pgs.
1.  Bray, J.D., Riemer, M.F, Seed, R.B., Sitar, N., and Stewart, J.P. (1994).
"Chapter 4: Geotechnical considerations," in Preliminary Report on the Seismological and Engineering Aspects of the January 17, 1994 Northridge Earthquake, J.P. Moehle (editor), Rpt. No. UCB/EERC 94-01, Earthquake Engineering Research Center, University of California, Berkeley, January, 19 pgs.
 Guidelines Documents for Design Professionals
4.  Principal author of Chapter 8 and Appendix E of FEMA-440: Improvement of nonlinear static seismic analysis procedures, Department of Homeland Security, Federal Emergency Management Agency, June, 2005.
3.  Stewart, J.P. and Wren, J.R. (2005). Section 4: "Geotechnical Aspects" [approx 10 MB],
in Engineering Guidelines for the Assessment and Repair of Earthquake Damage in Residential Woodframe Buildings, CUREE Publication No. EDA-06, Consortium of Universities for Research in Earthquake Engineering, Richmond, CA.
2.  Contributions to Sections 4.1 and 5.8 of The 2003 NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures and Accompanying Commentary.
1.  Blake, T.F., Hollingsworth, R.A., and Stewart, J.P., editors (2002). "Recommended procedures for implementation of DMG Special Publication 117 Guidelines for analyzing and mitigating landslide hazards in California," Southern California Earthquake Center, University of Southern California, Los Angeles, California, 130 pgs.

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