Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental and computational verification of reasonable design formulae for base‐isolated structures
10.1002/eqe.279.abs
It is clear that base isolation is a sensible strategic design in attenuating the responses of a structural system induced by ground motions. The design of seismically isolated structures is mainly governed by the Uniform Building Code (UBC) published by the International Conference of Building Officials. The UBC code emphasizes a simple, statically equivalent design method that displacements of an isolated structure are concentrated at the isolation level. Therefore, the superstructure nearly moves as a rigid body and the design forces of elements above isolators are based on the behaviour of isolators at the design displacement. However, in the UBC code, the distribution of inertial (or lateral) forces over the height of the superstructure above isolation has been found to be too conservative for most isolated structures. In view of this, two simple and reasonable design formulae for the lateral force distribution on isolated structures have been proposed in this paper. Results obtained from a full‐scale isolated structure tested on the shaking table and numerical analyses of two additional examples verify the suitability of design formulae. It is illustrated that the proposed formulae can predict well the lateral force distribution on isolated structures during earthquakes. Copyright © 2003 John Wiley & Sons, Ltd.
Experimental and computational verification of reasonable design formulae for base‐isolated structures
10.1002/eqe.279.abs
It is clear that base isolation is a sensible strategic design in attenuating the responses of a structural system induced by ground motions. The design of seismically isolated structures is mainly governed by the Uniform Building Code (UBC) published by the International Conference of Building Officials. The UBC code emphasizes a simple, statically equivalent design method that displacements of an isolated structure are concentrated at the isolation level. Therefore, the superstructure nearly moves as a rigid body and the design forces of elements above isolators are based on the behaviour of isolators at the design displacement. However, in the UBC code, the distribution of inertial (or lateral) forces over the height of the superstructure above isolation has been found to be too conservative for most isolated structures. In view of this, two simple and reasonable design formulae for the lateral force distribution on isolated structures have been proposed in this paper. Results obtained from a full‐scale isolated structure tested on the shaking table and numerical analyses of two additional examples verify the suitability of design formulae. It is illustrated that the proposed formulae can predict well the lateral force distribution on isolated structures during earthquakes. Copyright © 2003 John Wiley & Sons, Ltd.
Experimental and computational verification of reasonable design formulae for base‐isolated structures
Tsai, C. S. (Autor:in) / Chen, Bo‐Jen (Autor:in) / Chiang, Tsu‐Cheng (Autor:in)
Earthquake Engineering & Structural Dynamics ; 32 ; 1389-1406
25.07.2003
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Reasonable Design Formulae for Base-Isolated Structures
| British Library Conference Proceedings | 2003
PVP2002-1451 Reasonable Lateral Force Distributions on Isolated Structures
| British Library Conference Proceedings | 2002
Reasonable Doubts: Monitoring and Verification for Performance Contracting
| British Library Conference Proceedings | 1996
Seismic design of base isolated structures
| British Library Conference Proceedings | 1994