1. Room 362D, Department of Civil Engineering, Whittier Research Center, University of Nebraska, Lincoln, NE 68583.
2. Room 362N, Department of Civil Engineering, Whittier Research Center, University of Nebraska, Lincoln, NE 68583.
3. Zachry Department of Civil Engineering, Texas A&M University, 3136 TAMU, 603E CVLB Building, College Station, TX 77843.