Volume 6, Issue 4 (6-2022)                   NMCE 2022, 6(4): 29-37 | Back to browse issues page


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Omrani Z, Amirabadi R, Sharifi M. Effect of earthquake directional uncertainty on the seismic response of jacket-type offshore platform. NMCE 2022; 6 (4) :29-37
URL: http://nmce.kntu.ac.ir/article-1-397-en.html
1- Ph.D. student, University of Qom, Qom, Iran. , z.omrani@stu.qom.ac.ir
2- Assistant professor, University of Qom, Qom, Iran.
Abstract:   (598 Views)
In the seismic risk assessment of structures, two main random variables are involved, namely the vulnerability of the structure and the seismic action. The aim of the study presented here is to analyze the seismic behavior of the jacket-type offshore platforms as an expensive and vital structure. Furthermore, the influence of the incidence angle of the seismic action is also investigated by using twelve ground motions, rotating the direction of both orthogonal components by 22.5° (from 0° to 180°). Three damage states have been used in result interpretation. The variability of structural response to the direction of seismic input becomes larger as the level of inelastic behavior increases. In the present study, the critical directions were determined and the vulnerability of jacket type offshore structure was examined by fragility curve based on methodology suggested by Pacific Earthquake Engineering Research Center (PEER) for three damage limit states by both multicomponent incremental dynamic analysis (MIDA) and directional multicomponent incremental dynamic analysis (DMIDA). Finally, it is found that structural behavior in the collapse zone is sensitive to directional uncertainty can change the results by up to 10%.
Full-Text [PDF 510 kb]   (199 Downloads)    
Type of Study: Research | Subject: Special
Received: 2021/12/11 | Revised: 2022/01/28 | Accepted: 2022/01/30 | ePublished ahead of print: 2022/04/9

References
1. Lopez, O. A., and Torres, R., (1997), "The critical angle of seismic incidence and the maximum structural response", Earthquake Engineering and Structural Dynamics, Vol. 26, no. 9, pp. 881- 894. https://doi.org/10.1002/(SICI)1096-9845(199709)26:9<881::AID-EQE674>3.0.CO;2-R [DOI:10.1002/(SICI)1096-9845(199709)26:93.0.CO;2-R]
2. Lopez, O.A., Chopra, A.K., Hernandez, J.J., (2000), "Critical response of structures to multicomponent earthquake excitation", Earthquake Engineering and Structural Dynamics, 29:1759-1778. https://doi.org/10.1002/1096-9845(200012)29:12<1759::AID-EQE984>3.0.CO;2-K [DOI:10.1002/1096-9845(200012)29:123.0.CO;2-K]
3. MacRae, G.A., Mattheis, J., (2000), "Three-dimensional steel building response to near-fault motions", Journal of Structural Engineering, 126(1): 117-126. [DOI:10.1061/(ASCE)0733-9445(2000)126:1(117)]
4. Khoshnoudian, F., and Poursha, M., (2004), "Response of three-dimensional buildings under bi-directional and unidirectional seismic excitations", Proceedings of 13th world conference on earthquake engineering.
5. Torbol, M., and Shinozuka, M., (2012), "The directionality effect in the seismic risk assessment of highway networks", Structure and Infrastructure Engineering, 10(2): pp.175-188. [DOI:10.1080/15732479.2012.716069]
6. Nguyen, V.T., and Kim, D.K., (2013), "Influence of incident angles of earthquakes on inelastic responses of asymmetric-plan structures", Struct. Eng. Mech., 45(3), 373-389. [DOI:10.12989/sem.2013.45.3.373]
7. Reyes, J. C., and Kalkan, E., (2015), 'Significance of rotating ground motions on behavior of symmetric- and asymmetric-plan structures: Part I. Single-story structures", Earthquake Spectra, vol.31, pp.1591-1612. [DOI:10.1193/072012EQS241M]
8. Kalkan, E., and Reyes, J. C., (2015), "Significance of rotating ground motions on behavior of symmetric- and asymmetric-plan structures: Part II. Multi-story structures", Earthquake Spectra, 31, 1613-1628. [DOI:10.1193/072012EQS242M]
9. Penzien J., and Watabe M., (1975), "Characteristics of 3-dimensional earthquake ground motions, Earthquake Engineering and Structural Dynamics", 3(4): 365-373. [DOI:10.1002/eqe.4290030407]
10. Menun, C., and Der Kiureghian, A., (1998), "A Replacement for the 30%, 40%, and SRSS Rules for Multicomponent Seismic Analysis", Earthquake Spectra, 14(1):153-63. [DOI:10.1193/1.1585993]
11. Wilson, EL., Suharwardy, I., and Habibullah, A., (1995), "A Clarification of the Orthogonal Effects in a Three-Dimensional Seismic Analysis", Earthquake Spectra, 11(4):659-66. [DOI:10.1193/1.1585831]
12. Davila, F., and Cruz, E., (2004), "Study of the effect of in-plan asymmetry in multistory buildings subjected to uni- and bi-directional seismic motions", 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada, August 1-6, 2004, Paper No. 1042.
13. Athanatopoulou, AM., (2005), "Critical orientation of three correlated seismic components", Engineering Structures, 27(2):301-312. [DOI:10.1016/j.engstruct.2004.10.011]
14. Rigato, AB., and Medina, RA., (2007), "Influence of angle of incidence on seismic demands for inelastic single-storey structures subjected to bi-directional ground motions", Engineering Structures, 29(10):2593-601. [DOI:10.1016/j.engstruct.2007.01.008]
15. Cantagallo, C., Camata, G., and Spacone, E., (2012), "The Effect of the Earthquake Incidence Angle on Seismic Demand of Reinforced Concrete Structures", 15 WCEE, In Lisboa.
16. Emami, AR., and Halabian, AM., (2015), "Spatial distribution of ductility demand and damage index in 3D RC frame structures considering directionality effects: Spatial Distribution of Ductility Demand and Damage Index", Struct Des Tall Spec Build, 24(16):941-61. [DOI:10.1002/tal.1219]
17. Reyes, J.C., and Kalkan, E., (2013), "Significance of Rotating Ground Motions on Behavior of Symmetric- and Asymmetric-Plan Structures: Part I". Single-Story Structures", Earthq Spectra, 31(3):1591-612. [DOI:10.1193/072012EQS241M]
18. Lagaros, N.D., (2010), "Multicomponent incremental dynamic analysis considering variable incident angle", Structure and Infrastructure Engineering, 77-94. [DOI:10.1080/15732470802663805]
19. Jafari, A., and Dezvareh, R., (2021), "Evaluation of dynamic effects in the response of offshore wind turbines using incremental wind-wave analysis", Research in Marine Sciences, 6(1): 860-868
20. Dezvareh, R., (2019), "Application of Soft Computing in the Design and Optimization of Tuned Liquid Column-Gas Damper for Use in Offshore Wind Turbines", International Journal of Coastal and Offshore Engineering, 2(4), 47-57. [DOI:10.29252/ijcoe.2.4.47]
21. Rupali, J. and Jaiswal, J., (2017), "Study of Effect of Seismic Excitation Angle for the Analysis of Regular and Irregular RC Frame", Mechanical and Civil Engineering, vol.14, pp.80-83. [DOI:10.9790/1684-1402078083]
22. Bisadi, V., Head, M., (2011)," Evaluation of combination rules for orthogonal seismic demands in nonlinear time history analysis of bridges", J Struct Eng, ASCE, 16(6):711-7. [DOI:10.1061/(ASCE)BE.1943-5592.0000241]
23. Fontara, I.K.M., Kostinakis K.G., Manoukas G.E., Athanatopoulou A.M., (2015), "Parameters affecting the seismic response of buildings under bi-directional excitation", Struct Eng Mech, 53(5):957-79. [DOI:10.12989/sem.2015.53.5.957]
24. Hashash, Y.M.A., (2011) DEEPSOIL V 5.0, User Manual and Tutorial, 2002-2011, University of Illinois at Urbana-Champaign.
25. Wang, S., Kutter, B.L., Chacko, M.J., Wilson, D.W., Boulanger, R.W. and Abghari, A., (1998), "Nonlinear seismic soil-pile structure interaction", Earthquake Spectra, 14, pp. 377-396. [DOI:10.1193/1.1586006]
26. Matlock, H., Bryant, L.M. and Foo, S.H.C., (1978), "Simulation of lateral pile behavior under earthquake motion", Earthquake Engineering and Soil Dynamics, Pasadena, CA, American Society of Civil Engineers, pp. 600-19.
27. Penzien, J., Scheffey, C.F., and Parmelee, R.A., (1964)," Seismic analysis of bridges on long pile", Journal of the Engineering Mechanics Division, vol.90, pp. 223-254. [DOI:10.1061/JMCEA3.0000489]
28. Kagawa, T., and Kraft, L.M., (1980), "Seismic p-y responses of exible piles", Journal of the Geotechnical Engineering Division, 106, pp. 899-918. [DOI:10.1061/AJGEB6.0001018]
29. Nogami, T., Otani, J., Konagai, K. and Chen, H., (1992), "Nonlinear soil-pile interaction model for dynamic lateral motion", Journal of Geotechnical Engineering, 118, pp. 89-106. [DOI:10.1061/(ASCE)0733-9410(1992)118:1(89)]
30. Boulanger, R., Curras, C., Kutter, B., Wilson, D. and Abghari, A., (1999), "Seismic soil-pile structure interaction experiments and analyses", Journal of Geotechnical and Geo environmental Engineering, 125, pp. 750-759. [DOI:10.1061/(ASCE)1090-0241(1999)125:9(750)]
31. Naggar, M.H.E., and Bentley, K.J., (2000), 'Dynamic analysis for laterally loaded piles and dynamic p-y curves", Canadian Geotechnical Journal, 37, pp. 1166-1183. [DOI:10.1139/t00-058]
32. API., Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms {Working Stress Design (API RP2A-WSD), Washington (DC), American Petroleum Institute (2005).
33. Darendeli, M.B., (2001), "Development of a New Family of Normalized Modulus Reduction and Material Damping Curves", University of Texas at Austin.
34. Pacific Earthquake Engineering Research Center (PEER), (2107) Data from: PEER Ground Motion Database. Retrieved from http://ngawest2.berkeley.edu/users/sign_in.
35. Soltani, M., Amirabadi, R., (2019), "Sensitivity analysis of pile supported wharves against directional uncertainty of earthquakes using fragility curves", International Journal of Maritime Technology, IJMT, Vol.11, pp.33-40. [DOI:10.29252/ijmt.11.33]
36. Giovenale, P., Cornell, C.A., and Esteva, L., (2004), "Comparing the adequacy of alternative ground motion intensity measures for the estimation of structural responses", Earthquake Engineering and Structural Dynamics, 33(8): 951-979. [DOI:10.1002/eqe.386]
37. Babaei, S., Amirabadi, R., Sharifi, M., Ventura, C., (2021), "Optimal probabilistic seismic demand model for fixed pile-founded offshore platforms considering soil-pile-structure interaction", Structures, Vol.33, pp.4330-43. [DOI:10.1016/j.istruc.2021.07.040]
38. Ghobarah, A., Abou-Elfath, H., and Biddah, A., (1999), "Response-based damage assessment of structures", Earthquake Engineering and Structural Dynamics, 28(1): 79-104. https://doi.org/10.1002/(SICI)1096-9845(199901)28:1<79::AID-EQE805>3.0.CO;2-J [DOI:10.1002/(SICI)1096-9845(199901)28:13.0.CO;2-J]
39. FEMA 273, NEHRP Guidelines for seismic rehabilitation of buildings, Federal Emergency Management Agency, Washington, DC, (1997).
40. Vamvatsikos, D., and Cornell, C.A., (2002), "Incremental dynamic analysis", Earthquake Engineering and Structural Dynamics, 31(3): 491-514. [DOI:10.1002/eqe.141]
41. Vamvatsikos, D., (2006), "Incremental dynamic analysis with two components of motion for a 3D steel structure", Proceedings of the 8th US National Conference on Earthquake Engineering, San Francisco.
42. Serdar Kircil, M, and Polat, Z., (2006), "Fragility analysis of mid-rise R/C frame buildings", Engineering Structures, 28(9): 1335-1345. [DOI:10.1016/j.engstruct.2006.01.004]
43. ISO, Petroleum and natural gas industries-specific requirements for offshore structures (ISO 19901-2)", Part 2, Seismic Design Procedures and Criteria, Switzerland, International Standard Organization (2004).
44. Jahanitabar, A.A., and Bargi, Kh., (2018), "Time-dependent seismic fragility curves for aging jacket-type offshore platforms subjected to earthquake ground motions", J Struct & Infrastruct Eng, 14(2):192-202. [DOI:10.1080/15732479.2017.1343360]
45. Hwang, H. H. M., and Huo, J.-R., (1994), "Generation of hazard consistent fragility curves for seismic loss estimation studies", Tech. Rep. NCEER-94-0015, National Center for Earthquake Engineering Research (NCEER), State University of New York, Buffalo, NY, USA.
46. Fukushima, S., Kai, Y., and Yashiro, K., (1996), "Study on the fragility of system-part 1: structure with brittle elements in its stories," in Proceedings of the 11th World Conference on Earthquake Engineering, Pergamon, Elsevier Science Ltd., Paper No. 333.
47. Singhal, A., and Kiremidjian, A. S., (1998), "Bayesian updating of fragilities with application to RC frames", Journal of Structural Engineering, vol. 124, no. 8, pp. 922-929. [DOI:10.1061/(ASCE)0733-9445(1998)124:8(922)]
48. Shinozuka, M., Feng, M. Q., Lee, J., and Naganuma, T., (2000) "Statistical analysis of fragility curves," Journal of Engineering Mechanics, vol. 126, no. 12, pp. 1224-1231 [DOI:10.1061/(ASCE)0733-9399(2000)126:12(1224)]
49. Karim, K. R., and Yamazaki, F., (2001), "Effect of earthquake ground motions on fragility curves of highway bridge piers based on numerical simulation", Earthquake Engineering and Structural Dynamics, vol. 30, no. 12, pp. 1839-1856. [DOI:10.1002/eqe.97]
50. Shinozuka, M., Feng, M. Q., Kim, H., Uzawa, T., and Ueda, T., (2003), "Statistical analysis of fragility curves", Tech. Rep. MCEER- 03-0002, Multidisciplinary Center for Earthquake Engineering Research (MCEER), The State University of New York, Buffalo, NY, USA.
51. Choi, E., DesRoches, R., and Nielson, B., (2004), "Seismic fragility of typical bridges in moderate seismic zones," Engineering Structures, vol. 26, no. 2, pp. 187-199 [DOI:10.1016/j.engstruct.2003.09.006]
52. Banerjee, S., and Shinozuka, M., (2007) "Nonlinear static procedure for seismic vulnerability assessment of bridges", Computer-Aided Civil and Infrastructure Engineering, vol. 22, no. 4, pp. 293- 305. [DOI:10.1111/j.1467-8667.2007.00486.x]
53. Banerjee, S., (2007), "Statistical empirical and mechanistic fragility analysis of concrete bridges", Ph.D. dissertation, University of California, Irvine, Calif, USA
54. Chiou, J.S., Chiang, C.H., Yang, H.H., and Hsu, S.Y., (2011), "Developing fragility curves for a pile supported wharf", Soil Dynamics and Earthquake Engineering, vol. 31(5), p.p. 830-840. [DOI:10.1016/j.soildyn.2011.01.011]
55. Soltani, M., and Amirabadi, R., (2021), "Seismic Vulnerability Assessment Of Pile-Supported Wharves Using Fragility Surfaces", Journal of Earthquake Engineering, DOI: 10.1080/13632469.2021.1961926. [DOI:10.1080/13632469.2021.1961926]

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