1. Research Structural Engineer, National Institute of Standards and Technology, 100 Bureau Dr., Gaithersburg, MD 20899 (corresponding author).
2. Assistant Professor, Dept. of Civil Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana 502285, India.
3. Professor, School of Civil and Environmental Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907.