Œf�ÚŽGŽ��i˜a�j�F “y–ØŠw‰ï˜_•¶�W I Šª�F -Šª �†�F 501/I-29�† •Å�F 143�]152•Å ”N�F 1994”N ŒŽ�F 10ŒŽ ’˜ŽÒ�i˜a�j�F �쓇�@ˆê•F, ‰^�ã�@–ÎŽ÷�@ ƒ^ƒCƒgƒ‹�i˜a�j�F ƒoƒŠƒAƒuƒ‹ƒ_ƒ“ƒp�[‚ð—p‚¢‚½“¹˜H‹´‚Ì’n�k‰ž“š�§Œä�@�@ �´˜^�i˜a�j�F
- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F JOURNAL OF STRUCTURAL MECHANICS AND EARTHQUAKE ENGINEERING ’˜ŽÒ�i‰p�j�F Kazuhiko KAWASHIMA, Shigeki UNJO�@ ƒ^ƒCƒgƒ‹�i‰p�j�F Seismic Response Control of Bridges by Variable Dampers. �´˜^�i‰p�j�F
Variable Dampers which change the damping characteristics depending on the bridge response is proposed. Effectiveness of the variable damper for seismic response control of bridge is studied through a numerical analysis. A prototype variable damper was developed, and a series of dynamic loading test ƒL�[ƒ��[ƒh�i‰p�j�F variable damper, earthquake response control, highway bridges, control algorithms ‹LŽ–‹æ•ª�F ˜a•¶˜_•¶�i“Š�e˜_•¶�j ‹æ•ª �@�@�@�@˜_•¶�W