1. ACI Committee 318 (1999). Building code requirements for structural concrete (ACI 318-99) and commentary (318R-99), Farmington Hills, MI, p.391.
2. Ang, A. H-S. and Tang, W. (1984). Probability concepts in engineering planning and design. Vol.II-Decision, Risk and Reliability. J. Wiley & Sons, New York.
3. Clough, R. W. and Penzien, J. (1982). Dynamics of structures, McGraw-Hill, Singapore, pp.597-602
4. Kawano, A., Matsui, C. and Shimizu, T. (1998). Basic properties of column over-design factors for steel reinforced concrete frames. J. Struct. Constr. Engrg., No. 505, pp.153-159.
5. Kuwamura, H., Sakai, M. and Kato, B. (1989). Mechanism-based seismic design considering random yield strength. J. Struct. Constr. Engrg., No. 401, pp.151-162.