Institution: | (1) Department of Structural Engineering, Faculty of Engineering, Nagasaki University, 1-14 Bunkyomachi, Nagasaki 852-8521, Japan e-mail: hu@st.nagasaki-u.ac.jp, JP;(2) Department of Architecture, Miyakonojo National College of Technology, 473-1 yoshiocyou, Miyakonojo, Miyazaki 885-8567, Japan, JP |