�@ Œf�ÚŽGŽ��i˜a�j�F “ú–{’n�k�HŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶�W Vol�F 9-3Šª ”N�F 1994”N •Å�F E.169-E.174•Å ’˜ŽÒ�i˜a�j�F - ƒ^ƒCƒgƒ‹�i˜a�j�F - �´˜^�i˜a�j�F
- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒ�i‰p�j�F Carlos ZAVALA, Kenichi OHI, Koichi TAKANASHI ƒ^ƒCƒgƒ‹�i‰p�j�F SUBSTRUCTURING HYBRID SIMUIATION ON EARTHQUAKE RESPONSES OF 2D FRAMES �´˜^�i‰p�j�F
The removal of the unbalance forces related with the non-mass degree of freedom, generated between steps of integration on flexible frames, is presented for the sub-structuring hybrid scheme. Four different predictors of the specimen response, Elastic model, two-component Bili near model, Multi-Spring model, and Neural Network model, are evaluated in order to eliminate and reduce the unbalance forces under constant axial load. A controlled variation of the moment gradient are considered for the first time in this kind of simulation. Box-shaped sections 100 x 100 x 6 are considered as test specimen for the special conditions of the test setup and the required transformations are presented. ƒL�[ƒ��[ƒh�i‰p�j�F - ‹LŽ–‹æ•ª�F - ‹æ•ª �@�@�@ˆÏˆõ‰ï˜_•¶�W