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- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F PROCEEDINGS OF THE SYMPOSIUM ON SYSTEM OPTIMIZATION ’˜ŽÒ�i‰p�j�F Susumu OTAKI,Kunihito MATSUI,Manabu MATSUSHIMA ƒ^ƒCƒgƒ‹�i‰p�j�F STRUCTURAL IDENTIFICATION FOR DYNAMIC CHARACTERISTICS OF EXISTING POWER SUBSTATIONS �´˜^�i‰p�j�F
A circuit breaker fixed to a spread footing is modeled by a mass-rigid body system. The breaker is represented by a mass and the footing by a rigid body. The mass and the rigid body is connected by a spring and damper. The rigid body is supported by horizontal and rotational springs and their corresponding dampers. By using the recorded input and response data earthquake, parameters for soil-structures interaction are estimated by structural identification techniques based on Gauss-Newton method. ƒL�[ƒ��[ƒh�i‰p�j�F circuit breaker,soil-structures interaction,structural identification ‹LŽ–‹æ•ª�F - ‹æ•ª �@�@�@ˆÏˆõ‰ï˜_•¶�W