1. Sr. Res. Engr., LENDIS Corp./Fed. Hwy. Admin., Ofc. of Infrastructure R&D, 6300 Georgetown Pike, McLean, VA 22101.
2. Res. Struct. Engr., Bridge Des. and Hazard Mitigation Team, Ofc. of Infrastructure R&D, Fed. Hwy. Admin., 6300 Georgetown Pike, McLean, VA 22101 (corresponding author). E-mail: wen-huei.yen@fhwa.dot.gov
3. Dir., Ofc. of Bridge Technol., Fed. Hwy. Admin., 400 Seventh St., S.W., Washington, DC 20590.
4. Team Leader, Bridge Des. and Hazard Mitigation Team, Ofc. of Infrastructure R&D, Fed. Hwy. Admin., 6300 Georgetown Pike, McLean, VA 22101.