1. Department of Civil and Environmental Engineering, University of Texas at Arlington, P.O. Box 19308, Arlington, TX 76019-0308
2. Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208
3. Department of Civil Engineering, Ferguson Structural Engineering Laboratory, University of Texas at Austin, 10100 Burnet Road, Building No. 177, Austin, TX 78731