1. Senior Engineer, Westinghouse Electric Company, LLC, 1000 Westinghouse Dr., Cranberry Township, PA 16066 (corresponding author).
2. Research Assistant Professor, Lyles School of Civil Engineering, Purdue Univ., West Lafayette, IN 47907.
3. Karl H. Kettelhut Professor, Lyles School of Civil Engineering, Purdue Univ., West Lafayette, IN 47907.