1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Patton Hall, 750 Drillfield Dr., Blacksburg, VA 24060.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Patton Hall, 750 Drillfield Dr., Blacksburg, VA 24060 (corresponding author). ORCID: .