1. Department of Civil Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Road; Taipei; 10617; Taiwan
2. Department of Civil, Structural and Environmental Engineering, University at Buffalo; State University of New York; Buffalo; NY; 14260; USA
3. RPK Structural Mechanics Consulting Inc.; Escondido; CA; 92026; USA
4. Simpson Gumpertz & Heger Inc.; San Francisco; CA; 94105; USA