1. A state of art report on concrete-filled steel tube structures, Part 1. Elasto-plastic behavior of members;Tomii;Concrete J.,1974
2. Composite bridge piers and design calculation and commentary,1992
3. Some issues on steel piers with concrete filled columns;Kawai;Bridge Found. Engng,1983
4. Some issues on steel piers with concrete filled columns;Kawai;Bridge Found. Engng,1983