1. Experimental study on ultimate strength and ductility of concrete filled steel box columns;Nakai;J Struct Engng, JSCE,1993
2. Experimental study on ultimate strength and ductility of concrete filled thin-walled steel box columns after receiving seismic loading;Nakai;J Struct Engng, JSCE,1993
3. Nakanishi K, Kitada T, Nakai H. Experimental study on deterioration of ultimate strength and ductility of damaged concrete filled steel box columns. In: Proceedings of ASCCS International Conference, Kosice, Slovakia, June 1994;4:127–30.
4. Nakai H, Kitada T, Nakanishi K. Experimental study on ultimate strength and ductility of steel and composite bridge piers under gradually increasing and cyclic load. In: Proceedings of JSCE 1995;No. 513/I-31:89–100 (in Japanese).
5. Nakai H, Kitada T, Nakanishi K. Study on ultimate strength and seismic characteristics of steel and composite column using hybrid testing system. Memories of the Faculty of Engineering, Osaka City University, Special Issue of Southern Hyogo Prefectural Earthquake 1997:131–148 (in Japanese).