7Junichi sakai,Chiaki Matsui,and Kouichi Minami.Earthquake resistant properties of core steel composite structures[].Proceedings of th World Confon Earthquake Engineering.2000
8Mizuo Inukai,Kazuya Noguchi.Masaomi Teshigawara et.al.Seismic design of composite columns using core steel under varying axial load[].Proceedings of th World Conf on Earthquake Engineering.2004
9Yasuo Tanaka,Younggon Ro,et,al.Strengthing of Reinforced concrete columns by central reinforcing element[].Proc.th World Conf.on Earthquak Engineering.1996
10Yasuo Tanaka,Y Kaneko,Hammi Yashiro,Younggon Ro,et,al.Hybrid steel reinforced concrete structure: Strengthing of Reinforced concrete columns by central reinforcing steel element[].Proc.th World Confon Earthquak Engineering.2000