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بررسی اثر پارامترهای زلزله نزدیک گسل بر پاسخ پل‌های رمپی دارای قوس افقی | ||
| نشریه مهندسی عمران امیرکبیر | ||
| مقاله 16، دوره 53، شماره 1، فروردین 1400، صفحه 247-260 اصل مقاله (5.18 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2018.14386.5640 | ||
| نویسندگان | ||
| سجاد حیدری1؛ محسن گرامی* 2 | ||
| 1دانشجوی مهندسی زلزله، دانشکده مهندسی عمران، دانشگاه سمنان، سمنان، ایران | ||
| 2دانشگاه سمنان | ||
| چکیده | ||
| جهت طراحی سیستم‌های حمل‌ونقل ایمن، شناخت کامل از رفتار پیچیده پل‌ها تحت زمین‌لرزه امری اجتناب‌ناپذیر است. زمین‌لرزه‌های گذشته نشان دادند که پل‌های دارای قوس افقی به دلیل نامنظمی هندسی بسیار متأثر از زمین‌لرزه‌ها، به‌ویژه در حوزه نزدیک گسل می‌باشند. تحقیقات پیشین نشان دادند که سه پارامتر بزرگا، PGV و Tp تأثیرگذارترین پارامترهای زلزله نزدیک گسل می‌باشند. در این تحقیق با ساخت یک مدل نرم‌افزاری صحت‌سنجی شده به‌وسیله آزمون میدانی و با بررسی دو پل دارای قوس افقی تلاش شد تأثیر پارامترهای زلزله نزدیک گسل بر پاسخ این نوع از پل‌ها به دست آید. جهت تحلیل تاریخچه زمانی سه دسته رکورد نزدیک گسل بدست آمد که در هر یک از آن‌ها دو پارامتر از بزرگا، PGV و Tp تقریباً ثابت باقی‌ماند تا تأثیر پارامتر سوم را بتوان در نتایج مشاهده نمود. نتایج نشان داد که تغییر پارامتر PGV بیشترین تأثیر را بر پاسخ این نوع از پل‌ها خواهد داشت. با افزایش طول پل و به عبارت دیگر دوره تناوب پل، تأثیر پارامتر Tp بر پاسخ بدست آمده افزایش می‌یابد. چنانچه تفاوت حداکثر تغییر مکان ابتدا و انتهای عرشه به عنوان معیاری جهت ارزیابی پتانسیل دوران عرشه درنظر گرفته شود، افزایش طول پل و قرارگیری در حوزه نزدیک گسل می‌توانند سبب افزایش پاسخ دوران عرشه به ترتیب تا 37/2 و 47/2 برابر شوند. | ||
| کلیدواژه‌ها | ||
| زلزله نزدیک گسل؛ پل دارای قوس افقی؛ دوران عرشه؛ آزمون میدانی پل | ||
| موضوعات | ||
| پل های بتنی؛ تحلیل خطی و غیر خطی؛ دینامیک سازه؛ زلزله های حوزه نزدیک | ||
| عنوان مقاله [English] | ||
| Investigating the Effect of Near-Fault Earthquake Parameters on the Behavior of Horizontally Curved Bridges | ||
| نویسندگان [English] | ||
| sajad heidari1؛ Mohsen Gerami2 | ||
| 1Department of Civil Engineering, Semnan University, Semnan, Iran | ||
| چکیده [English] | ||
| To design safe transportation systems, it is unavoidable to completely recognize the complicated behaviors of bridges under an earthquake. The past earthquakes showed that horizontally curved bridges are highly affected by earthquakes, especially near-fault earthquakes, due to irregular geometry. The previous studies indicated that magnitude; PGV and Tp < /sub> have been the most effective near-fault-earthquake parameters. In the present study, attempts were made to determine the effect of these parameters on such bridges using a verified software model by a field test and analyzing two horizontally curved bridges. Three suites of near-fault records were used to conduct time-history analysis with three parameters, namely magnitude, PGV, and Tp < /sub>. In each suite, two of these parameters are almost constant, and the third parameter is variable to observe its effect on the result. The results indicated that the change in PGV has the most significant effect on the behaviors of such bridges. Also, the effect of Tp < /sub> increases in longer bridges. If the difference between the lateral displacement of two ends of the deck is considered as criteria for assessing the potential of deck rotation, increasing in bridge length and being in a near-fault area can lead to an increase in bridge deck rotation behavior up to 2.37 and 2.47 times, respectively. | ||
| کلیدواژه‌ها [English] | ||
| Horizontally curved bridges, Near-fault earthquake, Deck rotation, Field testing | ||
| مراجع | ||
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[1] J.R. Association, Specifications for highway bridges, part V Seismic design, (2002) 28. [2] P.C. Jennings, Engineering features of the San Fernando earthquake of February 9, 1971, (1971). [3] R.R. Wakefield, A.S. Nazmy, D.P. Billington, Analysis of seismic failure in skew RC bridge, Journal of Structural Engineering, 117(3) (1991) 972-986. [4] B. Singh, S. Chakraverty, Flexural vibration of skew plates using boundary characteristic orthogonal polynomials in two variables, Journal of sound and vibration, 173(2) (1994) 157-178. [5] G. Watanabe, K. Kawashima, Effectiveness of cable-restrainer for mitigating rotation of a skewed bridge subjected to strong ground shaking, in: 13th world conference on earthquake engineering, 2004, pp. 1-6. [6] Y. Zuo, G. Sun, H. Li, Response analysis of curved bridge with unseating failure control system under near-fault ground motions, in: IOP Conference Series: Earth and Environmental Science, IOP Publishing, 2018, pp. 022065. [7] E.V. Monzon, C. Wei, I.G. Buckle, A. Itani, Seismic response of full and hybrid isolated curved bridges, in: Structures Congress 2012, 2012, pp. 603-612. [8] W. Yen, G. Chen, M. Yashinsky, Y. Hashash, C. Holub, K. Wang, X. Guo, Bridge Lessons Learned from the Wenchuan, China, Earthquake, Transportation Research Record: Journal of the Transportation Research Board, (2202) (2010) 102-108. [9] M. Abbasi, M.A. Moustafa, Effect of Shear Keys on Seismic Response of Irregular Bridge Configurations, Transportation Research Record: Journal of the Transportation Research Board, (2642) (2017) 155-165. [10] M. Amjadian, A. Agrawal, Torsional response of horizontally curved bridges subjected to earthquake-induced pounding, in: 16th World Conference on Earthquake Engineering, 2017. [11] A. Banerjee, A. Chanda, R. Das, Seismic analysis of a curved bridge considering deck‐abutment pounding interaction: an analytical investigation on the post‐impact response, Earthquake Engineering & Structural Dynamics, 46(2) (2017) 267-290. [12] C. Heins, W.H. Lee, Curved box-girder bridge test: field test, Journal of the Structural Division, 107(2) (1981) 317-327. [13] D. Huang, Field test and rating of Arlington curved-steel box-girder bridge: Jacksonville, Florida, Transportation Research Record: Journal of the Transportation Research Board, (1892) (2004) 178-186. [14] D. Huang, Full-scale test and analysis of a curved steel-box girder bridge, Journal of Bridge Engineering, 13(5) (2008) 492-500. [15] P.G. Somerville, N.F. Smith, R.W. Graves, N.A. Abrahamson, Modification of empirical strong ground motion attenuation relations to include the amplitude and duration effects of rupture directivity, Seismological Research Letters, 68(1) (1997) 199-222. [16] P.G. Somerville, Magnitude scaling of the near fault rupture directivity pulse, Physics of the earth and planetary interiors, 137(1-4) (2003) 201-212. [17] P. Spudich, B.S. Chiou, R. Graves, N. Collins, P. Somerville, A formulation of directivity for earthquake sources using isochrone theory, US Geol. Surv. Open-File Rept, 1268 (2004) 54. [18] J.W. Baker, Quantitative classification of near-fault ground motions using wavelet analysis, Bulletin of the Seismological Society of America, 97(5) (2007) 1486-1501. [19] M. Sasani, V. Bertero, Importance of severe pulse-type ground motions in performance-based engineering: historical and critical review, in, WORD CONFERENCE ON EARTHQUAKE ENGINEERING, 2000. [20] V. Phan, M.S. Saiidi, J. Anderson, H. Ghasemi, Near-fault ground motion effects on reinforced concrete bridge columns, Journal of structural engineering, 133(7) (2007) 982-989. [21] P.G. Somerville, Development of ground motion time histories for phase 2 of the FEMA/SAC steel project, SAC Joint Venture, 1997. [22] P. Kavianijopari, Performance-based seismic assessment of skewed bridges, University of California, Irvine, 2011. [23] K.R. Mackie, K.J. Cronin, B.G. Nielson, Response sensitivity of highway bridges to randomly oriented multi-component earthquake excitation, Journal of Earthquake Engineering, 15(6) (2011) 850-876. [24] A. Ghobarah, W. Tso, Seismic analysis of skewed highway bridges with intermediate supports, Earthquake Engineering & Structural Dynamics, 2(3) (1973) 235-248. [25] A. Abdel-Mohti, G. Pekcan, Seismic response of skewed RC box-girder bridges, Earthquake Engineering and Engineering Vibration, 7(4) (2008) 415-426. [26] J.Y. Meng, E.M. Lui, Seismic analysis and assessment of a skew highway bridge, Engineering Structures, 22(11) (2000) 1433-1452. [27] F. McKenna, G. Fenves, M. Scott, Open system for earthquake engineering simulation, University of California, Berkeley, CA, (2000). [28] S. Caltrans, Caltrans seismic design criteria version 1.6, California Department of Transportation, Sacramento, (2010). [29] M. Khanmohammadi, S. Heydari, Seismic behavior improvement of reinforced concrete shear wall buildings using multiple rocking systems, Engineering Structures, 100 (2015) 577-589. [30] J.K. Kim, I.-H. Kim, H.-W. Lim, J.-H. Lee, J.-H. Lee, Cyclic Loading Test of Bridge Pier Models without Seismic Detailing, in: Eighth East Asia-Pacific Conference on Structural Engineering and Construction, Singapore, Singapore, 2001. [31] M.N. Priestley, F. Seible, G.M. Calvi, Seismic design and retrofit of bridges, John Wiley & Sons, 1996. [32] A. Shamsabadi, M. Kapuskar, G.R. Martin, Three-dimensional nonlinear finite-element soil-abutment structure interaction model for skewed bridges, in: Fifth National Seismic Conference on Bridges & Highways, 2006. [33] J.D. Cooper, I.M. Friedland, I.G. Buckle, R.B. Nimis, N. McMullin Bobb, The Northridge earthquake: progress made, lessons learned in seismic-resistant bridge design, Public Roads, 58(1) (1994). | ||
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