Site Specific Relationship for Strain Dependent Shear Modulus and Damping Using In Situ V S and High Strain Cyclic Test Results

2016-08-18
Zehtab, Kaveh Hassan
Yılmaz, Mustafa Tolga
This study suggests a practical method for estimating site-specific strain dependent shear modulus and damping. The method uses in-situ shear wave velocity measurements and commercial cyclic laboratory tests on higher strains (i.e., 0.5% to 1%) in which the effect of disturbance is less significant. Shear modulus calculated using in-situ shear wave velocity and at higher cyclic shear strain, is used for building a hyperbolic relationship for shear stress and strain. Modified Masing's rule and the experimental hysteretic damping at that higher strain are used to create strain dependent damping relationship. As a result, the effects of sample disturbance on lab test results are reduced, and the number of laboratory tests decreases significantly.
Citation Formats
K. H. Zehtab and M. T. Yılmaz, “Site Specific Relationship for Strain Dependent Shear Modulus and Damping Using In Situ V S and High Strain Cyclic Test Results,” presented at the 4th Geo-Chicago Conference: Sustainable Materials and Resource Conservation (14 - 18 Ağustos 2016), Chicago, USA, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72216.