EFFECT OF UNDERGROUND STRUCTURE ON PGA AT GROUND SURFACE CONSIDERING LINEAR AND NONLINEAR BEHAVIOR FOR THE SOIL

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HASSAN BAZIAR M.; RABETI MOGHADAM M.; KIM D.S.; CHOO Y.W.

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Journal: JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL) Year:2015 | Volume:34 | Issue:1 Page(s): 119-137

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Title

EFFECT OF UNDERGROUND STRUCTURE ON PGA AT GROUND SURFACE CONSIDERING LINEAR AND NONLINEAR BEHAVIOR FOR THE SOIL

Author(s)

HASSAN BAZIAR M. | RABETI MOGHADAM M. | KIM D.S. | CHOO Y.W. | Issue Writer Certificate

Keywords

UNDERGROUND STRUCTUREQ1

FREEFIELDQ2

PEAK GROUND ACCELERATION (PGA)Q2

LINEAR AND NONLINEAR BEHAVIOR OF SOILQ2

PARAMETRIC STUDYQ1

FLAC 2D SOFTWAREQ2

Abstract

In this paper, a numerical model was first verified against dynamic centrifuge tests results performed on an underground subway tunnel and then, the effect of UNDERGROUND STRUCTURE on peak ground acceleration (PGA) at the ground surface investigated considering linear and nonlinear behavior for the soil. The results show that in the range of natural frequency of the system, nonlinear model shows deamplification of PGA with respected to the FREEFIELD. Whereas, linear model shows opposite trend. Out of the range of natural frequency of the system, linear and nonlinear models predict same results and for both model, underground tunnel resulted in amplification of low frequencies and deamplification of high frequencies with respected to the FREEFIELD.

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APA: Copy

HASSAN BAZIAR, M., RABETI MOGHADAM, M., KIM, D.S., & CHOO, Y.W.. (2015). EFFECT OF UNDERGROUND STRUCTURE ON PGA AT GROUND SURFACE CONSIDERING LINEAR AND NONLINEAR BEHAVIOR FOR THE SOIL. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), 34(1), 119-137. SID. https://sid.ir/paper/173583/en

Vancouver: Copy

HASSAN BAZIAR M., RABETI MOGHADAM M., KIM D.S., CHOO Y.W.. EFFECT OF UNDERGROUND STRUCTURE ON PGA AT GROUND SURFACE CONSIDERING LINEAR AND NONLINEAR BEHAVIOR FOR THE SOIL. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL)[Internet]. 2015;34(1):119-137. Available from: https://sid.ir/paper/173583/en

IEEE: Copy

M. HASSAN BAZIAR, M. RABETI MOGHADAM, D.S. KIM, and Y.W. CHOO, “EFFECT OF UNDERGROUND STRUCTURE ON PGA AT GROUND SURFACE CONSIDERING LINEAR AND NONLINEAR BEHAVIOR FOR THE SOIL,” JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), vol. 34, no. 1, pp. 119–137, 2015, [Online]. Available: https://sid.ir/paper/173583/en

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