점성토의 점탄성 특성을 고려한 층상지반의 지진응답특성
Seismic Response Characteristics of Layered Ground Considering Viscoelastic Effects of Clay
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In order to estimate the viscous effects of clay over a wide range of strain levels, we confirmed the performance of a viscoelasticviscoplastic constitutive model by simulating cyclic undrained triaxial tests to determine the cyclic strength and deformation characteristics of natural marine clay. The viscoelastic-viscoplastic constitutive model was then incorporated into an effective stress-based seismic response analysis to estimate the effects of an intermediate clay layer on the behavior of sand layers. Seismic response was simulated by the cyclic viscoelastic-viscoplastic constitutive model created with data recorded at Rokko Island, Kobe, Japan. The results show that a cyclic viscoelastic-viscoplastic constitutive model can provide a good description of dynamic behavior including viscoelastic effects, within a small strain range.
Abstract
In order to estimate the viscous effects of clay over a wide range of strain levels, we confirmed the performance of a viscoelasticviscoplastic constitutive model by simulating cyclic undrained triaxial tests to determine the cyclic strength and deformation characteristics of natural marine clay. The viscoelastic-viscoplastic constitutive model was then incorporated into an effective stress-based seismic response analysis to estimate the effects of an intermediate clay layer on the behavior of sand layers. Seismic response was simulated by the cyclic viscoelastic-viscoplastic constitutive model created with data recorded at Rokko Island, Kobe, Japan. The results show that a cyclic viscoelastic-viscoplastic constitutive model can provide a good description of dynamic behavior including viscoelastic effects, within a small strain range.
참고문헌 (16)
- Adachi, T, "Constitutive equations for normally consolidated clay based on elasto-viscoplasticity", Soils and Foundations, 22(4), pp.57~70 (1982)
- Biot, M. A, "Mechanics of deformation and acoustic propagation in porous media", Journal of Applied Physics, 33(4), pp.1482~1498 (1962)
- Chaboche, J. L, "On the plastic and viscoplastic constitutive equations", Journal of Pressure Vessel Technology, 105, pp.153~164 (1983)
- Di Benedetto, H, "Small strain behavior of geomaterials: modelling of strain rate effects", Soils and Foundations, 37(2), pp.127~138 (1997)
- Hori, M, "Fundamental studies on wave propagation characteristics through soils. Ph.D. Dissertation", 박사, Department of Civil Engineering, pp.1974
- Kim, Y. S, "cyclic viscoelastic-viscoplastic constitutive model for clay and Its application to liquefaction analysis", 박사, Department of Civil Engineering, pp.2001
- Kim,Y.S., "Dynamic behavior characteristics of clay in wide strain range based on viscoelasticviscoplastic constitutive model", International Journal of Offshore and Polar Engineering, 16(2), pp.153~160 (2006)
- 김준경, "국내 관측자료를 이용한 응답스펙트럼의 수직", 수평비 특성 분석, 2011, pp.12(1), 81~87[DOI]
- Kondner, R. L., "Viscoelastic response of a cohesive soil in the frequency domain", Transaction of the Society of Rheology, 9(2), pp.329~342 (1965)
- 이진선, "지진시 지반의 반복경화", 연화 현상에 의한 부지응답 특성 영향 연구, 2008, pp.12(6), 65~71[DOI]
- Murayama, S, "Flow and stress relaxation of clays", Proc. IUTAM Symp. on Rheology and Soil Mechanics, pp.99~129 (1966), Springer-Verlag
- Oka, F, "Elasto-viscoplastic constitutive equation for overconsolidated clay", Proceedings International Symposium on Numerical Models in Geomechanics, pp.47~156 (1982), Balkema
- Oka F, "A cyclic elasto-viscoplastic constitutive model for clay based on the non-linear hardening rule", Proceedings 4th International Symposium on Numerical Models in Geomechanics, pp.105~114 (1992)
- 박재균, "불규칙한 다층 물성을 가지는 지반의 지진 응답 해석", 한국지진공학회논문집, 9(6), pp.67~73 (2005), 한국지진공학회
- 박홍근, "낮은 심도의 연약지반에 대한 비선형 지진응답해석", 한국지진공학회논문집, 14(5), pp.1~12 (2010), 한국지진공학회
- 류희룡, "시간영역에서유한요소법을 이용한 지진시의 지반응답해석", 한국농공학회논문집, 48(6), pp.45~56 (2006), 한국농공학회