Computational Soil-Structure Interaction Design via Inverse Problem Formulation for Cone Models
Computational Soil-Structure Interaction Design via Inverse Problem Formulation for Cone Models
- 한국전산구조공학회
- Computational Structural Engineering : An International Journal
- Vol.2 No.1
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2002.0133 - 42 (10 pages)
- 0
A computationally efficient stiffness design method for building structures is proposed in which dynamic soil-structure interaction based on the wave-propagation theory is taken into account. A sway-rocking shear building model with appropriate ground impedances derived from the cone models due to Meek and Wolf (1994) is used as a simplified design model. Two representative models, i.e. a structure on a homogeneous half-space ground and a structure on a soil layer on rigid rock, are considered. Super-structure stiffness satisfying a desired stiffness performance condition are determined via an inverse problem formulation for a prescribed ground-surface response spectrum. It is shown through a simple yet reasonably accurate model that the ground conditions, e.g. homogeneous half-space or soil layer on rigid rock (frequency-dependence of impedance functions), ground properties (shear wave velocity), depth of surface ground, have extensive influence on the super-structure design.
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