Affiliation: | a University of Nebraska-Lincoln, Civil Engineering, 225, Peter Kiewit Institute, 1110 S. 67th St., Omaha, NE 68182-0178, United Statesb Hunan University, College of Civil Engineering, Changsha, 410082, Chinac University of Nebraska-Lincoln, Civil Engineering, 203F, Peter Kiewit Institute, 1110 S. 67th St., Omaha, NE 68182-0178, United Statesd University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA 90089, United States |