Dr. Motamed’s main areas of research include LRFD for deep foundations; shake table experiments; liquefaction and mitigation measures; pile foundations in liquefied and lateral spreading grounds; soil- structure interaction; site response analysis; seismic hazard analysis; near-fault ground motions; selection and development of acceleration time histories; and train-induced ground vibrations.
– Evaluation of Nonlinear Soil Response Using Geotechnical Downhole Arrays in California (PI, Sponsored by CSMIP, California Geological Survey)
– Implementation and Validation of Vertical Site Response Analyses in LS-DYNA Using Geotechnical Down- hole Array Records (PI, Sponsored by Arup)
– Pilot study to explore similitude between small and large diameter drilled shaft load tests (PI, Sponsored by ADSC)
– Helical Piles for Underpinning of Shallow Foundations on Soils Susceptible to Liquefaction: A Pilot Study (PI, Sponsored by DFI and Ram Jack)
– An Evaluation of Site Response Analysis Methods (PI, Sponsored by Arup)
– Calibration of Resistance Factors for LRFD of Axially Loaded Drilled Shafts in the Las Vegas Valley (PI, Sponsored by NDOT)
– Incorporation of Local Site Effects in Broadband Simulations of Ground Motions: Case Study of the Wildlife Liquefaction Array in Southern California (PI, Sponsored by SCEC)