پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شمارهها | 439 |
| تعداد مقالات | 5,666 |
| تعداد مشاهده مقاله | 7,784,469 |
| تعداد دریافت فایل اصل مقاله | 6,379,378 |
تحلیل خطر احتمالاتی با اعمال اثرات رفتار غیرخطی خاک | ||
| نشریه مهندسی عمران امیرکبیر | ||
| مقاله 5، دوره 46، شماره 1، شهریور 1393، صفحه 49-61 اصل مقاله (1.16 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2014.330 | ||
| نویسندگان | ||
| سامان یغمائی سابق* 1؛ رویا مطلب زاده2 | ||
| 1استادیار، دانشکده مهندسی عمران، دانشگاه تبریز | ||
| 2کارشناسی ارشد، دانشکده مهندسی عمران، دانشگاه تبریز | ||
| چکیده | ||
| مطالعات انجام گرفته در خصوص رفتار خاک بیانگر این واقعیت است که لایههای خاک تحت اثر زلزلههای قوی عموماً وارد محدوده رفتار غیرخطی میشود. این در حالیست که در تحلیل خطر متداول، رفتار خاک بصورت خطی فرض میشود. این مقاله سعی دارد طیف خطر بر روی بستر سنگی را با منحنی های تشدید حاصل از تحلیل های دینامیکی جهت تهیه طیف ویژه ساختگاه ترکیب نماید. بدین منظور ساختگاههای مختلف با مشخصات دینامیکی مشخص و قطعی در دو شهر تبریز و تهران انتخاب و تحلیل خطر احتمالاتی در این مناطق با اعمال اثرات غیرخطی خاک انجام گرفته است. در ادامه با استفاده از ضرایب ارائه شده براساس مدلسازی مونت کارلو و در مرحله بعدی به کمک تحلیل دینامیکی و دستیابی به منحنی تشدید، طیف پاسخ ویژه ساختگاه محاسبه شده است. بررسی نتایج نشان میدهد، در صورتی که مشخصات دینامیکی لایههای خاک مشخص و قطعی نباشند، روش پیشنهادی بر اساس مدلسازی مونت کارلو با دقت خوبی میتواند مورد استفاده قرار گیرد. | ||
| کلیدواژهها | ||
| تحلیل خطر احتمالاتی لرزهای؛ رفتار غیرخطی خاک؛ طیف ویژه ساختگاه؛ منحنی تشدید | ||
| عنوان مقاله [English] | ||
| Probabilistic Seismic-Hazard Analysis (PSHA) Considering Nonlinear Soil-Site Effects | ||
| نویسندگان [English] | ||
| Saman Yaghmaei Sabegh1؛ Roya Motalebzadeh2 | ||
| 1Associate Professor, Department of Civil Engineering, Tabriz University, Tabriz, Iran | ||
| 2M.Sc. Student, Department of Civil Engineering, Tabriz University, Tabriz, Iran | ||
| چکیده [English] | ||
| Studies on the behavior of soil layers reflect the fact that the soil is generally enter the range of nonlinear behavior during strong ground motions that have received increased attention in recent years. Conventional seismic hazard analysis often assumes a linear behaviour for soil with considering of a generic-attenuation relation. Generally, for site response analysis, the amplification function is required that is depend on dynamic property of different soil layers, are not known for different parts of the world. This paper is aimed at presenting a straightforward approach for estimating seismic hazard curves taking into account nonlinear soil-site effects. This approach convolves numerically the probabilistic seismic hazard analysis (PSHA) at bedrock with the nonlinear response of soil computed via dynamic analysis. Applications of proposed method has been shown for two different sites located in Tehran and Tabriz, one sandy and one clayey. A Monte Carlo based approach was used for characterization of amplification function values along with those of deterministic curved obtained in the study areas. It is concluded that that the proposed model can give satisfactory accuracy for predicting seismic hazard curves when there is a lack of detailed information of dynamic soil properties. | ||
| کلیدواژهها [English] | ||
| Probabilistic seismic hazard analysis, nonlinear behavior of soil, uniform hazard spectra, amplification function | ||
|
سایر فایل های مرتبط با مقاله
|
||
| مراجع | ||
|
[1] Kramer, S. L. ,“Geotechnical Earthquake Engineering”, Prentice-Hall International Series in Civil Engineering and Engineering Mechanics, Prentice Hall, Upper Saddle River, NJ 07458, 1996. [2] Iranian Code of Practice for Seismic Resistant Design of Buildings, Standard No.2800, 3rd edition, Building and Housing Research Center (BHRC), 2005. [3] Trifuance, M. D. and Todorovska M. I., “Nonlinear Soil Response-1994 Northridge, California, Earthquake”, journal of Geotechnical Engineering, 122(9), pp. 725-735, 1996. [4] Cultrera, G., Boor D. M., Joyner W. B. and Dietel Ch. M. ,“Nonlinear Soil Response in the Vicinity of the Van Normal Complex Following the 1994 Northridge, California, Earthquake”, Seismosignal Society of America, 89(5), pp. 1214-1231, 1999. [5] Pavlenko, O. V. and Irikura K. ,“Nonlinearity in the Response of Soils in the 1995 Kobe Earthquake in Vertical Components of Records”, Soil Dynamics and Earthquake Engineering, 22, pp. 967-975, 2002. [6] Roumelioti, Z. and Beresnev I. A. ,“Stochastic Finite-Fault Modeling of Ground Motions from the 1999 Chi-Chi, Taiwan, Earthquake: Application to Rock and Soil Sites With Implications for Nonlinear Site Response” ,Seismosignal Society of America, 93(4), pp. 1691-1702, 2003. [7] Pavlenko, O. V. and Wen K. L. ,“Estimation of Nonlinear Soil Behavior During the 1999 Chi-Chi, Taiwan, Earthquake”, Pure and Applied Geophysics, 165, pp. 373-407, 2008. [8] Seed, H. B., Murarka R., Lysmer J. and Idriss I. M. ,“Relationships Between Maximum Acceleration, Maximum Velocity, Distance from Source and Local Site Conditions for Moderately Strong Earthquake”, Seismosignal Society of America, 66(4), pp. 1323-1342, 1976. [9] Idriss, I. M. ,“Response of Soft Soil Sites During Earthquakes”, Proceedings of the Symposium to Honor H.B. Seed, Berkeley, CA, pp. 273-289, 1990. [10] Abrahamson, N. A. and Silva W. J. ,“Empirical Response Spectra Attenuation Relations for Shallow Crustal Earthquakes”, Seismological Research Letters, 68, pp. 94–127, 1997. [11] Silva, W. J., Lee R., McGuire R. K. and Cornell C. A. ,“A comparison of Methodologies to Achieve a Site-Specific PSHA (abstract)”, Seismological Research Letters, 71, pp. 247, 2000. [12] Park, D. ,“Estimation of Non-Linear Seismic Site Effects for Deep Deposits of the Mississippi Embayment”, Ph.D. Dissertation, University of Illinois at Urbana, 2003. [13] Bazzurro, P. and Cornell C. A. ,“Nonlinear Soil-Site Effects in Probabilistic Seismic-Hazard Analysis”, Seismosignal Society of America, 96(6), pp. 2110–2123, 2004. [14] Park D. and Hashash Y. M.A. ,“Evaluation of seismic site factors in the Mississippi Embayment. II. Probabilistic seismic hazard analysis with nonlinear site effects”, Soil Dynamics and Earthquake Engineering 25(2), pp. 145-156, 2005. [15] Hardin, B. O. and Drnevich V. P. ,“Shear Modulus and Damping in Soils: Design Equations and Curves”, Soil Mechanics and Foundation, 98(SM7), pp. 289-234, 1972. [16] Yuxian, H. and Chen H. Y. ,“Probabilistic Analysis of Uncertainties in Seismic Hazard Assessment”, Structural Safety, 11, pp. 245-253, 1992. [17] Cornell, C. A. ,“Engineering Seismic Risk Analysis”, Seismosignal Society of America, 58(5),1968. [18] Campbell, K. W. and Bozorgnia Y. ,“Updated Near-Source Ground-Motion (Attenuation) Relations for the Horizontal and Vertical Components of Peak Ground Acceleration and Acceleration Response Spectra”, Seismosignal Society of America, 93(1), pp. 314–331, 2003. [19] Boore, D. M. Joyner W. B. and Fumal T. E., “Equation for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquake”, Seismological Research Letters, 68(1), pp. 128–153, 1997. [20] Li, X. S. Wang Z. L. and Shen C. K., “SUMDES: A Nonlinear Procedure for Response Analysis of Horizontally-Layered Sites Subjected to Multi-Directional Earthquake Loading”, Deptartement of Civil Engineering, University of California, Davis 1992. [21] Schnabel, P. B., Lysmer J. and Seed H. B., “SHAKE: A Computer Program for Earthquake Response Analysis of Horizontally Layered Sites”, Report No. UCB/EERC-72/12, Earthquake Engineering Research Center, University of California, Berkeley, December, pp. 102, 1972. [22] Bazzurro, P. and Cornell C. A. ,“Ground-Motion Amplification in Nonlinear Soil Sites with Uncertain Properties”, Seismosignal Society of America, 94(6), pp. 2090–2109, 2004. [23] Jafari, M. K. and Razmkhah A., “Complementary Seismic Geotechnical Microzonation of South of Tehran”, IIEES Report, International Institute of Earthquake Engineering and Seismology, Tehran, Iran (In Persian), 2001. [24] Haeri, S. M. and Hajalilue Bonab M. ,“Seismic Microzonation and Design Spectrum for Metropolitan Area-Tabriz City”, National Disaster Task Force, Earthquake and Land Slide hazard Committee , In Persian, 2005. [25] Seed, H. B. and Idriss I. M. ,“Soil Moduli and Damping Factors for Dynamic Response Analysis”, College of Engineering University of California Berkeley, Berkeley, 1970. [26] Jafari, M. K. Shafiee A. and Razmkhah A., “Dynamic Properties of Fine Grained Soil in South of Tehran”, Journal of Seismology and Earthquake Engineering, 4(1), pp. 25-35, 2002. [27] Gardner, J. K. and Knopoff L. ,“Is the Sequence of Earthquake in Southern California, With Aftershocks Removed, Poisoning?”, Seismosignal Society of America, 64(5), pp. 1363–1367, 1974. [28] Kijko, A. and Sellevoll M. A. ,“Estimation of Earthquake Hazard Parameters from Incomplete Data _Les. Part II, Incorporation of Magnitude Heterogeneity”, Seismosignal Society of America,82(1), pp. 120-134, 1992. [29] Tavakoli, B. and Ghafory-Ashtiany M., “Seismic Hazard Assessment of Iran Annali Di Geo_sica 42”, The Global Seismic Hazard Assessment Program (GSHAP) 1992-1999, pp. 1013-1021, 1999. [30] Bender, B. and Perkins D. M. ,“SEISRISKIII: A Computer Program for Seismic Hazard Estimation”, U.S. Geological Survay, 1772, 1987. [31] Ghasemi, H., Zare M., Fukushima Y. and Koketsu K. ,“An Emprical Spectral Ground Motion Model for Iran”, Journal of Seismology 13, pp. 499-515, 2009. | ||
|
آمار تعداد مشاهده مقاله: 2,807 تعداد دریافت فایل اصل مقاله: 2,887 |
||
