Location

St. Louis, Missouri

Session Start Date

4-26-1981

Session End Date

5-3-1981

Abstract

The main objective of this paper is to identify and discuss the subject of the effect of interface behavior on the overall soil-structure interaction in building foundation systems. A brief review of the previous approaches based on the assumption of compatibility between the structure and soil is followed by a discussion of the recent efforts toward inclusion of relative slip, debonding and rebonding at interfaces. Here available models in the context of the lumped parameter and finite element approaches are reviewed. A number of models used in static and dynamic analyses are presented, and the difficulties associated with those based on relative displacement, particularly in relation to the (arbitrary) choices of normal and shear stiffness, are discussed. Some ideas toward a simple but potentially promising model based on the use of thin element of soil (or structural medium) as interface is presented. The importance of appropriate laboratory tests is established and is followed by a review of available laboratory test devices for static and dynamic interfaces. Finally, a brief description of a new multi-degree-of-freedom device including testing of interface under vertical, horizontal, torsional and rocking modes is described together with preliminary test results.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

First Conference

Publisher

University of Missouri--Rolla

Publication Date

4-26-1981

Document Version

Final Version

Rights

© 1981 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 26th, 12:00 AM May 3rd, 12:00 AM

Behavior of Interfaces Between Structural and Geologic Media

St. Louis, Missouri

The main objective of this paper is to identify and discuss the subject of the effect of interface behavior on the overall soil-structure interaction in building foundation systems. A brief review of the previous approaches based on the assumption of compatibility between the structure and soil is followed by a discussion of the recent efforts toward inclusion of relative slip, debonding and rebonding at interfaces. Here available models in the context of the lumped parameter and finite element approaches are reviewed. A number of models used in static and dynamic analyses are presented, and the difficulties associated with those based on relative displacement, particularly in relation to the (arbitrary) choices of normal and shear stiffness, are discussed. Some ideas toward a simple but potentially promising model based on the use of thin element of soil (or structural medium) as interface is presented. The importance of appropriate laboratory tests is established and is followed by a review of available laboratory test devices for static and dynamic interfaces. Finally, a brief description of a new multi-degree-of-freedom device including testing of interface under vertical, horizontal, torsional and rocking modes is described together with preliminary test results.