1. Dept. of Civil Engineering, Univ. of Colorado at Denver, Denver, CO 80217 (corresponding author). E-mail: Jonathan.wu@cudenver.edu
2. Dept. of Civil Engineering, Univ. of Colorado at Denver, Denver, CO 80217. E-mail: zlee@carbon.cudenver.edu
3. Dept. of Civil Engineering, Univ. of Colorado at Denver, Denver, CO 8021. E-mail: qt1pham@ouray.cudenver.edu