اعتبار،چابکی،پاسخگویی

اولویت‌بندی شاخص های خرابی لرزه ای در قاب های خمشی فولادی نامنظم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه عمران، دانشکده مهندسی، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران

2 گروه عمران، دانشکده مهندسی، دانشگاه سیستان و بلوچستان، زاهدان، ایران

3 گروه عمران،دانشکده مهندسی، واحد گرمسار، دانشگاه آزاد اسلامی، گرمسار، ایران

چکیده
در سال‌های اخیر هم‌زمان با پیشرفت فناوری‌های مرتبط با محاسبات سازه و افزایش قابل‌توجه دانش و تجربه در مورد رفتار لرزه‌ای سازه‌ها، بررسی میزان خرابی آن‌ها شکل جدی‌تری به خود گرفته است در نتیجه نیاز به تعریف شاخص‌های خرابی (DI) می‌باشد ‌که میزان خرابی را به‌صورت‌ کمّی و ‌کیفی بیان می‌کنند. در بسیاری از موارد، شاخص‌های خرابی پارامترهای بدون بُعدی می‌باشند‌ که دامنه ‌آن‌ها معمولاً بین مقدار صفر برای حالت بدون خسارت و مقدار یک برای حالت فروپاشی سازه می‌باشد و مقادیر بین این دو مقدار، حالات مختلف خرابی را نشان می‌دهند. در این تحقیق، به‌منظور ارزیابی و اولویت‌بندی شاخص‌های خرابی، چهار تیپ سازه قاب خمشی فولادی نامنظم (نامنظمی جرمی) با شکل-پذیری متوسط و تعداد طبقات 2، 5، 8 و12 در نرم‌افزار Etabs طراحی شدند و با استفاده از‌ نرم‌افزار‌ اجزا محدودیSeismoStruct تحت زلزله‌های دور از ‌گسل مورد تحلیل ‌دینامیکی‌ غیرخطی تاریخچه زمانی قرار گرفته‌اند سپس پارامترهای موردنیاز برای به دست آوردن شاخص‌های خرابی‌ سازه‌ای از قبیل شاخص‌های محلی مانند: تغییرمکان ‌نسبی،‌ جابجایی بیشینه بام، گسیختگی، سینماتیکی، دوران تجمّعی نرمال بانون، دوران تجمّعی پلاستیک، شکل‌‌پذیری‌ و پارک-انگ و ‌شاخص‌های ‌‌کلی مانند: پارک-انگ، انرژی، رافائل ‌و ‌میر، پاپادوپولوس، رزن ‌بلو‌، شکل‌پذیری، سوزن، برش پایه، گسیختگی (وزنی) و دوران نسبی محاسبه، بررسی و اولویت‌بندی شده‌اند.

کلیدواژه‌ها

عنوان مقاله English

Seismic Damage Indices Prioritization in Irregular Steel Moment-Resisting Frames

نویسندگان English

Abbasali Sadeghi 1
Seyede Vahide Hashemi 2
Kourosh Mehdizadeh 3
1 Department of Civil Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran
2 Department of Civil Engineering, Sistan and Baluchestan University, zahedan, Iran
3 Department of Civil Engineering, Engineering Faculty, Garmsar Branch, Islamic Azad University, Garmsar, Iran
چکیده English

In recent years, with the advancement of technology related to structural computations and the significant increasing in knowledge and experience about the seismic behavior of structures, the study of their failure rate has become more serious, so it is necessary to define damage indices (DIs) are those that express amount of failure quantitatively and qualitatively. In many cases, Damage indices are dimensionless parameters, the range of which is usually between zero for no damage state and one for the structural collapse, and the values between these two indices are shown different damage states.
In this study, in order to evaluate and prioritize damage indices, four types of irregular intermediate ductility steel moment-resisting frame structure (mass irregularity) with 2, 5, 8 and 12-story were designed in Etabs software and then nonlinear dynamic time history analysis has been performed under far-fault earthquakes using SeismoStruct software so the parameters needed to obtain structural damage indices such as local indices like local indices: interstory drift, maximum roof displacement, banon failure, kinematic, banon normalized cumulative rotation, cumulative plastic rotation, ductility and park-ang and also global indices: park-ang, energy, roufaiel and meyer, papadopoulos, sozen, rosenblueth, ductility, hysteretic energy, Park-Ang and base shear, banon failure (weighted index) and interstory rotation have been derived, calculated and prioritized.

کلیدواژه‌ها English

  • Damage Index
  • Steel Moment-Resisting Frame
  • Irregular
  • Fa-Fault Earthquake
  • Nonlinear Time History Analysis
Banon H., Veneziano D., Seismic Damage in Reinforced Concrete Frames. Earthquake Engng. a. Struct.
Dyn, 10, 179-193, 1982.
- Emami, AR., Halabian, AM., Spatial distribution of ductility demand and damage index in 3D RC frame
structures considering directionality effects, The Structural Design of Tall and Special Buildings 24 (16),
941-961, 2015.
- ETABS, Linear and Nonlinear Static and Dynamic Analysis and Design of Three Dimensional Structures,
Computers and Structures, Inc. Berkeley, California, 2016.
- Ganjavi B, Vaseghi Amiri J, Ghodrati Amiri G, Sarvghad moghadam A R. Distribution of damage,
absorption and loss of seismic energy in moment resisting RC frames (MDOF). Proceedings of the 2nd
national congress on civil engineering, Iran University of Science and Technology, 2014.
- Ghobarah, A., Abou-elfath H., and Biddah, A., Response-based damage assessment of structures,
Earthquake Engineering and Structural Dynamics, 28, 1999 .
- Ghobarah, A., EI-Attar, M., Seismic performance evaluation of reinforced concrete buildings, 11 th
European Conference on Earthquake Engineering, Balkema, Rotterdam, 1998.
- Jeong, SH. and Elnashai, AS. New three-dimensional damage index for RC buildings with planar
irregularities, Journal of Structural Engineering, 132(9), 1482-1490, 2006.
- Kazemi H. Ashtiany M. Azarbakht A., Development of Fragility Curves by using New Spectral Shape
Indicators and a Weighted Damage Index: Case Study of the City of Mashhad, Iran, Journal of Earthquake
Engineering and Structural Vibration, 2015.
- Krawinkler, H. and Zohrei, M. Cumulative Damage in Steel Structures Subjected to Earthquake Ground
Motions, Comput. Struct, 16 (1-4), 531-54, 1983.
- Krawinkler H., Nassar A.A., Seismic Design based on Ductility and Cumulative Damage Demands and
Capacities, Nonlinear Seismic Analysis and Design Reinforced Concrete Buildings, Edited by: Fajfar P.,
Krawinkler H., Elsevier Applied Science, 1992.
- Kumar M, Stafford PJ, Elghazouli AY. Influence of ground motion characteristics on drift demands in steel
moment frames designed to Eurocode 8. Eng Struct; 52:502–517, 2013.
- Lucchini, A. Monti, G. Kunnath, S, Seismic Behavior of Single-story Asymmetric-plan Buildings under
Uniaxial Excitation. Earthquake Engng Struct. Dyn, 38:1053–1070, 2009.
- Menegotto M. and Pinto P.E, Method of analysis for cyclically loaded RC plane frames including changes
in geometry and non-elastic behaviour of elements under combined normal force and bending, International
Association for Bridge and Structural Engineering, 15-22. Zurich, Switzerland, 1973.
www.cpjournals.com ISSN:6262-155X )Civil & Project Journal)CPJ(( نشریه عمران و پروژه
ک٘طیٝ ف طإ ٚ پطٚغٜ، ؾب اٚ ،َ زٚضٜ 2، ق بٕضٜ 1، فطٚضزی 1399 ،ق بٕضٜ پیبپی 11 ،نفحٝ 41 تب نفحٝ 60
60
- Mirzaaghabeik, H,. and Vosoughifar, H.R., Comparison between quality and quantity seismic damage index
for LSF systems, Engineering Science and Technology, an International Journal Volume 19, Issue 1, Pages
497–510, 2016.
- Newmark N.M., Rosenblueth E., Fundamentals of Earthquake Engineering, Prentice Hall, Englewood
Cliffs, NJ, 1974.
- Papadopoulos, P.; Mitsopoulou, E.; and Athanatopoulou, A. Failure Indices for R/C Building Structures”,
12th European Conference on Earthquake Engineering. Paper Reference 616, Elsevier Science Ltd, 2002.
- Prahlad P., Shrikhande M. and Agarwal P. (2007), Performance-based seismic design using normalized
hysteretic energy, SEAOC CONVENTION, September 26-29 Squaw Creek, California, USA, 2007; pp 473-
487, 2007.
- Park Y.J., Ang A.H.-S., Mechanistic Seismic Damage Model for Reinforced Concrete.J. of Struct. Engng.
(ASCE), 111, 3, 722-739, 1985.
- Park, Y.J, Reinhorn, A.M., and Kunnath, S.K., Inelastic Damage Analysis of Frame Shear Wall Structure,
Technical Report NCEER 87-0008, 1987.
- PEER, Next Generation Attenuation of Ground Motions (Nga) Project, 2006.
- Rajeev, P. and Wijesundara, K. K. Energy-based damage index for concentrically braced steel structure
using continuous wavelet transform, Journal of Constructional Steel Research, Vol. 103, pp. 241-250, 2014.
- Roufaiel M.S.L., Meyer C., Analytical Modelling of Hysteretic Behavior of R/C Frames. J. of Struct.
Engng., 113, 3, 429-444, 1987.
- Sadeghi A, Kazemi H, Hashemi VS, Prioritization and assessment of the existing damage indices in steel
moment-resisting framed structures, Journal of Civil Engineering and Structures, (2), (3), pp 20-42, 2018.
- Sadeghi, K., Energy based structural damage index based on nonlinear numerical simulation of structures
subjected to oriented lateral cyclic loading, International Journal of Civil Engineering, Vol. 9, No. 3, pp 155-
164, Accession Number: WOS:000295205800002, IDS Number:824MK, ISSN: 1735-0522, Sept. 2011.
- Shiga, T., Shibata, A. and Takahashi, T., Earthquake damage and wall index of reinforced concrete
buildings, Proc.ohoku District Symp., Architectural Institute of Japan, pp. 29Ð32, 1968.
- SeismoSoft, SeismoStruct, a computer program for static and dynamic nonlinear analysis of framed
structures, 2018.
- Vui Van Cao, Hamid Reza Raonagh. Correlation between seismic parameters of far-fault motions and
damage indices of low-rise reinforced concrete frames, soil dynamic and earthquake engineering 66, 102-
112, 2014.
- Whitman, R.V.; Reed, J.W. and Hong, S.T. Earthquake Damage Probability Matrices, Proceedings of the
Fifth World Conference on Earthquake Engineering, Rome, Italy, 1973.
- Yao J.M, Sozen M.A., Effect of Beam Strength and Stiffness on Dynamic Behavior of Reinforced Concrete
Coupled Walls. Univ. of Illinois, Urbana; (Techno.Rep., Civil Engng. Studies, Struct. Res. Series
No. 444), 1975.
  • تاریخ دریافت 26 اسفند 1399
  • تاریخ بازنگری 26 فروردین 1399
  • تاریخ پذیرش 30 فروردین 1399
  • تاریخ اولین انتشار 30 فروردین 1399
  • تاریخ انتشار 01 فروردین 1399