Calculation of Damping coefficient of Surface Soil by 『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』

Calculation of Damping coefficient of Surface Soil by 『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』

1Shear strain(%):γ-
2Basic ahear strain(%):γ0.5It is a value when shearing rigidity ratio equals 0.5
3Maximum damping coefficient(%):hmax-
4Graph-
5Plot Input Data -
6Number of gridlines of Graph x-axis, y-axis -
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Keyword・Reference・Remarks・History

LaTex

Keyword

Damping coefficient of Surface Soil,Shear strain,Basic ahear strain,Maximum damping coefficient

Reference

[1]:Edited by Takeshi ISHIHARA:『Guidelines for Design of Wind Turbine Support Structures and Foundation December 2010』、Task Committee on Dynamic Analysis and Structural Design of Wind Turbine,Committee of Structural Engineering,Japan Society of Civil Engineers、pp.163-171

Remarks

・Cohesive soil

Plasticity index:Ip(%)

Basic ahear strain(%):γ0.5

Maximum damping coefficient(%):hmax

0~30 0.16 18
30~50 0.20 16
50~100 0.21 15
All data average 0.18 17

・Sandy soil

Confining pressure:σ0(kPa)

Basic ahear strain(%):γ0.5

Maximum damping coefficient(%):hmax

0~50 0.05 22
50~100 0.07 21
100~200 0.08 21
200~300 0.12 21
300~ 0.16 19
All data average 0.10 21
・Shear strain(%):γ
・Basic ahear strain(%):γ0.5
・Maximum damping coefficient(%):hmax
・Making Equation Image is powered by CODECOGS

History

・2011/06/02:Upload

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