1990 Volume 33 Issue 3 Pages 412-418
This paper describes an analytical evaluation of the effect of torsional motion on seismic responses of base-isolated FBR buildings which were designed conceptually in an applicability study of base isolation systems. Dynamic response coupling with torsional motion induced by obliquely incident earthquake input and by eccentricity in the structure was evaluated by response analyses, taking the biaxial nonlinearity of base isolation devices into account. As a result, it is shown that the effect of the torsional motion on the response of the building, devices, and the floor response spectra is not so large from a seismic design standpoint.
JSME international journal. Ser. 1, Solid mechanics, strength of materials
JSME international journal. Ser. A, Mechanics and material engineering
JSME International Journal Series C Mechanical Systems, Machine Elements and Manufacturing
JSME International Journal Series B Fluids and Thermal Engineering
JSME International Journal Series A Solid Mechanics and Material Engineering
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing