Location
St. Louis, Missouri
Presentation Date
29 Apr 1981, 1:30 pm - 5:00 pm
Abstract
Conventional seismic design criteria take values of internal forced and other response variables as those provided by an envelope to the values of those variables produced by in-phase motion of all supports. In structures extended in plan, such as long bridges, or founded on heterogeneous formations or irregular topography, such as dams, differences in ground motion among different supports may give to differences as compared with those produced by conventional analysis. In this paper ground motion is represented as stochastic process with evolutionary intensity and frequency content. A criterion for determining design responses, based on the variance of the response of the structure is proposed. Proportionality criterion depends on cross-correlations between displacements and accelerations occurring at supports. The proposed criterion is illustrated by applying it to a continuous bridge supported on piles embedded in a variable depth layer of soft clay.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1981 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Ruiz, S. E. and Esteva, L., "Probabilistic Response of Multi-support Structures on Non-uniform Soil Conditions" (1981). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 7.
https://scholarsmine.mst.edu/icrageesd/01icrageesd/session04b/7
Included in
Probabilistic Response of Multi-support Structures on Non-uniform Soil Conditions
St. Louis, Missouri
Conventional seismic design criteria take values of internal forced and other response variables as those provided by an envelope to the values of those variables produced by in-phase motion of all supports. In structures extended in plan, such as long bridges, or founded on heterogeneous formations or irregular topography, such as dams, differences in ground motion among different supports may give to differences as compared with those produced by conventional analysis. In this paper ground motion is represented as stochastic process with evolutionary intensity and frequency content. A criterion for determining design responses, based on the variance of the response of the structure is proposed. Proportionality criterion depends on cross-correlations between displacements and accelerations occurring at supports. The proposed criterion is illustrated by applying it to a continuous bridge supported on piles embedded in a variable depth layer of soft clay.
