Soil effects on building earthquake response
The purpose of this study is to develop soil and intensity-dependent, nonlinear design spectra for building structures. To construct these spectra, 16 earthquake records from rock sites were normalized with respect to maximum ground acceleration, and corresponding acceleration histories were calculated at different bedrock-soil interfaces and analytically filtered through soils of various types. The resulting surface-response histories were used to construct nonlinear design-response spectra, (average and average plus one standard deviation) for all 16 records. The representation of the rock-soil system considers elastic rock behavior. Soil behavior is idealized using a series of lumped masses connected by nonlinear shear springs. The structures themselves were assumed to be single-degree-of-freedom, elasto-plastic systems. A total of 18 cases were studied, derived from combinations of 3 earthquake intensities, 2 soil types, and 3 soil depths. Results are presented in the form of recommended inelastic design response spectra for different soil types and overall building displacement ductility factors.
- Research Organization:
- Texas Univ., Austin (USA)
- OSTI ID:
- 5163251
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
58 GEOSCIENCES
580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
BUILDINGS
DATA ANALYSIS
DESIGN
EARTHQUAKES
ELASTICITY
ENGINEERING GEOLOGY
GEOLOGY
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
ROCKS
SEISMIC EVENTS
SOIL-STRUCTURE INTERACTIONS
TENSILE PROPERTIES