پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شمارهها | 431 |
| تعداد مقالات | 5,602 |
| تعداد مشاهده مقاله | 7,216,999 |
| تعداد دریافت فایل اصل مقاله | 6,072,852 |
Active control of structures based on an arbitrary damage index distribution | ||
| AUT Journal of Civil Engineering | ||
| مقاله 12، دوره 4، شماره 3، آذر 2020، صفحه 385-396 اصل مقاله (1.14 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajce.2019.16680.5598 | ||
| نویسندگان | ||
| Mohammad Sadegh Kazemi1؛ farhad behnamfar* 2 | ||
| 1Consulting Engineers | ||
| 2Civil Engineering Department, Isfahan University of Technology | ||
| چکیده | ||
| Active control of structures is to keep the dynamic response of stories under a predefined threshold to save the building from excessive damage. Seismic damage has a strong correlation with drift, and control of drift is simply possible in an active control process. Through a regression analysis for many cases, the Park-Ang damage index is approximately re-written based only on story drifts to enhance the common active control procedure to make it able to control the seismic damage. It is shown that the enhanced procedure is successful to keep the damage index values along building height under a predefined distribution. The active control procedure is developed based on the linear quadratic regulator (LQR) algorithm and is used to actively control buildings having up to 10 stories. The target is limiting the story damage index to a prescribed value. Seven consistent earthquake records are used for nonlinear dynamic analysis of concrete structures being 1, 2, 3, 6 and 10 stories in height. The calculated maximum relative difference between the estimated and exact damage indices is shown to be less than 10%. Four earthquake records, different from the suit of ground motions used for developing the damage index equation, are used for testing the developed procedure. It is demonstrated that by using the story drifts estimated by the developed equation, the desired distribution of story damage indices can be established with an excellent accuracy. | ||
| کلیدواژهها | ||
| active control؛ LQR algorithm؛ Park-Ang damage index؛ damage index distribution؛ drift | ||
| مراجع | ||
|
ASCE/SEI 7-10 (2010) Minimum design loads for buildings and other structures.
Attard, TL, Wharton, CR (2012) Optimal control parameterization for displacement and acceleration demands and local post-yield constitutive responses. Engineering Structures 36(1): 123-133.
Baghban, A, Karamodin, A, Haji-Kazemi, H, (2015), Nonlinear control of structure using neuro-predictive algorithm. Smart Structures and Systems 16 (6): 1133-1145
Chu, SY, Soong, TT, Reinhorn, AM (2005), Active, Hybrid, and Semi-active Structural Control: A Design and Implementation Handbook, Wiley, New York, NY, USA.
Datta, TK (2003) A state-of-the-art review on active structure control. Journal of Earthquake Technology 40(1): 1-17.
Housner, GW, Bergman, LA, Caughey, TK, Chassiakos, AG, Claus, RO, Masri, SF, Skelton, RE, Soong, TT, Spencer, BF, Yao, JTP (1997) Structural control: past, present, and future. Journal of Engineering Mechanics 123(9): 897-971.
Joghataie, A, Mohebbi, M (2012) Optimal control of nonlinear frames by Newmark and distributed genetic algorithm. The Structural Design of Tall and Special Buildings 21(2): 77-95.
Karami Mohammadi, R, Haghighipour, F (2017), Implementation of Uniform Deformation Theory in semi-active control of structures using fuzzy controller. Smart Structures and Systems 19(4): 351-360.
KhanSefid, A, Ahmadizadeh, M (2016), An investigation of the effects of structural nonlinearity on the seismic performance degradation of active and passive control systems used for supplemental energy dissipation. Journal of Vibration and Control 22 (16), 3544-3554.
KhanSefid, A, Bakhshi, A (2018), Advanced two-step integrated optimization of actively controlled nonlinear structure under mainshock–aftershock sequences. Journal of Vibration and Control, Vol. 25, Issue 4, 1-15.
Kunnath, SK, Reinhorn, AM, Lobo RF (1992) IDARC version 3: A program for the inelastic damage analysis of RC structures. Technical report NCEER-92-0022. Buffalo (NY): National Center for Earthquake Engineering Research, State University of New York.
Miyamoto, K, Sato, D, She, J, (2018), A new performance index of LQR for combination of passive base isolation and active structural control. Engineering Structures 157(15): 280-299.
Miyamoto, K, She, J, D, Sato, Yasuo, N, (2018), Automatic determination of LQR weighting matrices for active structural control. Engineering Structures 174(1): 308-321.
OpenSees (2014). Open System for Earthquake Engineering Simulation, Version 2.4.2. Pacific Earthquake Engineering Research Center
Pang, M, Wong, K (2006) Predictive instantaneous optimal control of inelastic structures based on ground velocity. The Structural Design of Tall and Special Buildings 15(3): 307-324.
Park, YJ, Ang AHS (1985), Seismic damage analysis of reinforced Concrete buildings. Journal of Structural Engineering 111(4): 740-757.
PEER (2014). Pacific Earthquake Engineering Research Center, http://peer. berkeley.edu/index.html
Shooshtari, M, Saatcioglu, M (2003), Active Structural Control of Concrete Structures for Earthquake Effects”, Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, Canada, August.
Soong, T. T. (1990) Active Structural Control: Theory and Practice, Longman Scientific and Technical, New York, NY, USA.
Varaste, A, Behnamfar, F, Salimi, M (2012), Assessment of the conventional control algorithms and proposing a modified displacement feedback control for performance-based design of structures. Computational Methods in Civil Engineering 3(1): 35-50.
Williams, MS, Sexsmith, RG (1995), Seismic damage indices concrete structures: a state-of-the-art review. Earthquake Spectra 11(2): 319–349.
Yang, J, Wu, J, Li, Z (1996), Control of seismic-excited buildings using active variable stiffness systems. Engineering Structures 18(8): 589-596. | ||
|
آمار تعداد مشاهده مقاله: 633 تعداد دریافت فایل اصل مقاله: 686 |
||