Location
St. Louis, Missouri
Presentation Date
04 Apr 1995, 2:30 pm - 3:30 pm
Abstract
A preliminary numerical investigation is presented on the long distance effects of soil-structure interaction for important buildings located on soft soils. A simple 20 model is considered, with homogeneous rectangular buildings resting on a single, horizontal, soft layer overlying a much stiffer half-space, impinged by SH waves. Computations are made for different parameter sets, in order to analyze the respective effects of the main parameters: clay layer thickness and frequency, building size, and spacing between buildings. For realistic building properties, wave diffraction related with soil- structure interaction is shown to alter the "free-field" surface motion up to distances of at least 1 km from the next building: duration as well as amplitude are significantly increased at some frequencies, while they may be reduced at other frequencies.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1995 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
Bard, Pierre-Yves and Wirgin, Armand, "Effect of Built Environment on "Free-Field" Motion for Very Soft, Urbanized Sites" (1995). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 2.
https://scholarsmine.mst.edu/icrageesd/03icrageesd/session07/2
Included in
Effect of Built Environment on "Free-Field" Motion for Very Soft, Urbanized Sites
St. Louis, Missouri
A preliminary numerical investigation is presented on the long distance effects of soil-structure interaction for important buildings located on soft soils. A simple 20 model is considered, with homogeneous rectangular buildings resting on a single, horizontal, soft layer overlying a much stiffer half-space, impinged by SH waves. Computations are made for different parameter sets, in order to analyze the respective effects of the main parameters: clay layer thickness and frequency, building size, and spacing between buildings. For realistic building properties, wave diffraction related with soil- structure interaction is shown to alter the "free-field" surface motion up to distances of at least 1 km from the next building: duration as well as amplitude are significantly increased at some frequencies, while they may be reduced at other frequencies.
