اثر تعداد اعضای نواری در بررسی عددی رفتار دیوارهای برشی فولادی لاغر بدون سخت‌کننده با رویکرد پدافند غیرعامل

ابطحی, سید احسان; حسینی لواسانی, سیدحسین

اثر تعداد اعضای نواری در بررسی عددی رفتار دیوارهای برشی فولادی لاغر بدون سخت‌کننده با رویکرد پدافند غیرعامل

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ پژوهشگر-دانشگاه جامع امام حسین (ع)

² استادیار، دانشگاه خوارزمی

چکیده

با توجه به اصل هزینه_فایده در پدافند غیرعامل نتایج تحقیقات روی رفتار دیوارهای برشی نشان می‌دهد که سیستم دیوار برشی فولادی حدود 50 درصد در مصرف فولاد نسبت به سیستم قاب خمشی صرفهجویی به همراه خواهد داشت. سیستم دیوار برشی فولادی به‌عنوان یک سیستم باربر جانبی مقاوم در برابر تهدیدات طبیعی و انسانساخت از قبیل زلزله و انفجار که علاوه بر سبک بودن نسبت به دیوارهای برشی بتنی از سختی و شکلپذیری بالایی برخوردار است، عملکرد مناسبی از خود نشان داده است. با وجود این مزایا هنوز این سیستم به‌صورت گسترده در ایران مورد استفاده قرار نگرفته است. در این مقاله، از مدل نواری به‌عنوان یک روش برای تحلیل دیوارهای برشی فولادی استفاده شده است. در این مدل صفحات پانلهای فولادی با نوار‌های مایل و با زاویه یکسان به‌عنوان میدان کشش جایگزین میشوند. در این تحقیق، اثر تعداد اعضای نواری استفاده‌شده در مدل و زاویه شیب در تحلیل رفتار این سیستم بابر جانبی نشان داده شده است. در پایان نتیجه
میشود که تعداد اعضای نواری و زاویه شیب یک اثر ناچیز روی رفتار الاستیک سیستم دارند و اگر تحلیلهای استاتیکی خطی برای سیستم دیوار برشی فولادی لاغر بدون سختکننده ارائه شده باشد، پانلهای میانقابی را میتوان با 10 عضو نواری، همان‌طور که در آئین‌نامه کانادا حداقل 10 عضو نواری در هر پانل توصیه شده است، مدل کرد. اما سختی غیرالاستیک و پاسخ سیستم دیوار برشی فولادی لاغر بدون
سختکننده، میتواند از طریق مدل‌سازی پانل‌های میانقابی با 30 عضو نواری و زاویه مایل 45 درجه به‌صورت دقیق به‌دست آید.

کلیدواژه‌ها

20.1001.1.20086849.1400.12.3.3.3

عنوان مقاله [English]

The Effect of the Number of Strip Members on the Numerical Study of The Unstiffened Thin Steel Plate Shear Walls with Passive Defense Approach

نویسندگان [English]

S. E. Abtahi ¹
S. H. Huseini Lavasani ²

¹ Resercher-Imam hosein university

² kharazmi university

چکیده [English]

Nowadays, gait recognition is one of the biometric methods that receives more and more According to the cost-benefit principle in passive defense, the results of research on the behavior of shear walls show that the steel shear wall system will save about 50% in steel consumption compared to the bending frame system. The steel shear wall system has shown good performance as a lateral bearing system resistant to natural and man-made threats such as earthquakes and explosions, in addition to having a high performance and ductility and being light compared to concrete shear walls. Despite these advantages, this system has not yet been widely used in Iran. In this paper, the strip model is used as a method for the analysis of steel shear walls. In this model, the sheets of steel panels with oblique strips and the same angle are replaced as the tensile field. In this research, the effect of the number of band members used in the model and the slope angle in analyzing the behavior of this lateral beam system is demonstrated. In the end, it is concluded that the number of strip members and the angle of inclination have a negligible effect on the elastic behavior of the system and if linear static analysis for a thin steel sheer wall without hardeners is presented, interlayer panels can be modelled with 10 tape members per panel, as recommended in the Canadian regulations. However, the inelastic stiffness and response of the thin steel shear wall system without hardeners can be accurately achieved by modeling the interlayer panels with 30 strip members and an angle of 45 degrees.

کلیدواژه‌ها [English]

Strip Model
Lateral Loads
Unstiffened Thin Steel Plate Shear Wall
Material Nonlinearity Behavior

مراجع

[1] “AISC Load and Resistence Factor Design Specification , American Institute of Steel Construction Inc , Chicago, 1999.##
[2] Takahashi, Y. Takemoto, T. Takedab and M. Takagi, “Experimental Study on Thin Steel Shear Walls and Particular Bracings under Alternative Horizental Load”, Prelim.Rep, IABSE Symp. On Resistance and Ultimate Deformability of Structures Acted on by Well defined Repeated loads, Lisbon, Portugal, 1973.##
[3] Mimura and H, Akiyama, “Load-Deflection Relationship of Earthquake-Resistant Steel Shear Walls with a Developed Diagonal Tension Field”, Transactions,Architectural Institute of Japan, 1977.##
[4] J. Thorburn, G.l. Kulak and C. J., Montgomery, “Analysis of Steel Plate Shear Walls”, Structural Engineering Report . No .107, Department of Civil Engineering, University of Alberta, Edmonton,Canada, 1983.##
[5] A. Timler and G. L, Kulak, “Experimental Study of Steel Plate Shear Walls”, Structural Engineering Report No 114 , Department of Civil Engineering, University of Alberta, Edmonton, Canada, 1983.##
[6] Aoyama and Y. Yamamoto, “A Seismic Strengthening of existing RC Building by Steel Panel Shear Walls with Rims” , transactions, Japan, Concrete Institute Aoyama , H , Yamamoto , Y ; 1984.##
[7] W. Tromposch and G.L. Kulak, “Cyclic and Static Behavior of Thin Panel Steel Plate Shear walls”, Structural Engineering Report, No.145, Department of Civil Engineering, University of Alberta, Edmonton, Canada, 1987.##
[8] Elgaaly, V. Caccese and R. Chen, “Experimental Study of thin Steel –Plate Shear Walls under Cyclic Loads”, ASCE Journal of Structural Engineering, 1993.##
[9] Xue and L. Lu, "Interaction of Infilled Steel Shear Wall Panels with Surrounding Frame Members", proc., Structural Stability Research Council Annual Technical Session, Bethlehem , Pa , pp. 320 – 360, 1994. ##
G. Driver, G. L. Kulak, A. E. Elwi and D.J.L. Kennedy, “Cyclic Test of a Four-story steel plate Shear wall”, ASCE Journal of Structural Engineering, 1998.##
Rezai, “Seismic Behavior of Steel Plate Shear Walls by Shake Table Testing”, phD Dissertation , Dept.of Civil Engineering,University of British Columbia,Vancouver, Canada, 1999.##
Kuhn, J. P. Peterson, L.r, Levin, “A Summary of Diagonal Tension,Part I- Methods of Analysis”, Technical Note 2661, Langley Field (VA) :National Advisory Committee for Aeronautics, Langley Aeronautical Laboratory, 1952.##
S. Lubell, H. G. L. Prion, C. E. Ventura and M. Rezai “ Unstiffened Steel Plate Shear Wall Performance under Cyclic Load”, ASCE Journal of Structural Engineering, 2000.##
FEMA, 2000, “Prestandard and Commentary for the Seismic Rehabilitation of buildings”, Report No. FEMA 356, Federal Emergency Management Agency,Washington D.C##
L. Kulak, D. J. L. Kennedy, R.G. Driver and M. Medhekar, "Steel Plate Shear Walls _ an overview", AISC Engineering Journal, 2001.##
Behbahanifard, R. Hussain, G. Driver and G.Y. Grondin “Recent Developments and Future Directions in Steel Plate Shear Wall Research", proc. North American Steel Construction Conference , May, Ft. Lauderdale, FL, USA, 2003.##
Berman and M. Bruneau “Plastic Analysis and Design of Steel Plate Shear Walls", ASCE Journal of Structural Engineering, 2003.##
Bruneau and d. Vian, “Testing of Special LYS Steel Plate Shear Walls”, 13th World Conference on Earthquake Engineering Vancouver, b.c , Canada, paper no 978, 2004.##
H. K. Kharrazi and S. Sabouri_Ghomi “Modified sheet-frame interaction model”, Ph.D. Dissertation, University of British Columbia, Vancouver, BC, Canada, 2004.##
Driver, J. Shishkin and Y. Grondin “Analysis of Steel Plate Shear Walls using the Modified Strip Model”, University of Alberta, Department of Civil and Environmental Engineering, 2005.##
H. K. Kharrazi “Rational Method for Analysis and Design of Steel Plate Shear Walls”, Ph.D. Dissertation, University of British Columbia, Vancouver, BC, Canada, 2005.##

Wan-Shin and Y. Hyun-Do “Numerical Study of EarthQuake Performance of Steel Plate Shear Walls”, Department of Civil and Environmental Engineering, University of Cincinnati, 765 Baldwin Hall, Cincinnati, OH 45221, USA, 2007.##
Sabouri_Ghomi and M. Gholhaki, “Ductility of Thin Steel Plate Shear Walls”, Asian Journal of Civil Engineering (Building and Housing), vol. 9 no. 2 pp. 150_16868, 2008.##
M. Alinia and H. R. Habashi “Characteristics of the Wall_Frame Interaction in Steel Plate Shear Walls”, Journal of Constructional Steel Research, 2008.##
Koppal “Computational Investigation of Tunable Steel Plate Shear Walls for Improved Seismic Resistance”, Thesis Submitted to the Faculty of Virginia Polytechnic Institute and State University Inpartial Fulfillment of the Requirements for the Degree of Master of Science, Department of Civil Engineering, 2012.##
Sabouri-Ghomi and S. R. Asad Sajjadi, “Experimental and theoretical studies of steel shear walls with and without stiffeners”, Civil Engineering Department, K.N. Toosi University, Tehran, Iran. 18 April 2012.##
Heydari and M. Habibi, “Strengthening of Steel Plate Shear wall”, 2015.##
Vafi Shahri and H. Khosravi “ Investigation of bukling of Composite Steel Shear Wall with Smooth and Corrugated Sheets” , 2017.##