Integrated optimization of structure and control systems for interconnected building structures subjected to earthquake

Abstract

The integrated optimization of structure and control systems is investigated for n interconnected building structures subjected to earthquake. The vibration control model is established for the interconnected building structures, and optimal stiffness and damping parameters of assigned passive controllers are calculated based on LQR algorithm and an equivalent control effect strategy in the frequency domain. The integrated optimization model of structure and control, including design variables, the objective function and constraint function, is built. The design variables are size parameters of structural elements, the parameters of the weighted matrix, and the number and locations of passive controllers. The maximal displacement of the controlled system in the time domain and the energy index in the frequency domain are introduced as the optimized objective functions. A genetic algorithm is adopted to solve this kind of optimization problem with discrete and continuous design variables. The results of a numerical example show that the proposed method is reasonable and effective.

Keywords

Earthquake interconnected building structures integrated optimization structural optimization vibration control

Get full access to this article

View all access options for this article.

References

Banerji

Samanta

(2011) Earthquake vibration control of structures using hybrid mass liquid damper. Engineering Structures, 33: 1291–1301.

Choura

El-Borgi

Nayfeh

(2004) A hybrid control of seismically excited structures by confinement of vibrations. Journal of Vibration and Control, 10(4): 543–560.

Cimellaro

Soong

Reinhorn

(2009a) Integrated design of controlled linear structural systems. Journal of Structural Engineering, 135(7): 853–862.

Cimellaro

Soong

Reinhorn

(2009b) Integrated design of inelastic controlled structural systems. Structural Control and Health Monitoring, 16(7-8): 689–702.

Ferreira

FLS

Simoes

LMC

(2011) Optimum design of a controlled cable stayed bridge subject to earthquake. Structural and Multidisciplinary Optimization, 44: 517–518.

Gavin

Aldemir

(2005) Optimal control of earthquake response using semiactive isolation. Journal of Engineering Mechanics, 131(8): 769–776.

Guclu

Yazici

(2008) Vibration control of a structure with ATMD against earthquake using fuzzy logic controllers. Journal of Sound and Vibration, 318: 36–49.

Hajirasouliha

Pilakoutas

Moghaddam

(2011) Topology optimization for the seismic design of truss-like structures. Computers and Structures, 89: 702–711.

Houser

Bergman

Caughey

Chassiakos

Claus

Masri

Skelton

Soong

Spencer

Yao

JTP

(1997) Structural control: past, present, and future. Journal of Engineering Mechanics, 123(9): 897–971.

10.

Kargahi

Anderson

(2006) Structural weight optimization of frames using tabu search. II: Evaluation and seismic performance. Journal of Structure Engineering-ASCE, 132(12): 1869–1879.

11.

Kim

(2009) Neuro-control of fixed offshore structures under earthquake. Engineering Structures, 31: 517–722.

12.

Lagaros

Papadrakakis

(2007) Robust seismic design optimization of steel structures. Structural and Multidisciplinary Optimization, 33: 457–469.

13.

Möller

Foschi

Quiroz

Rubinstein

(2009) Structural optimization for performance-based design in earthquake engineering: applications of neural networks. Structural Safety, 31: 490–499.

14.

Soong

Cimellaro

(2009) Future directions in structural control. Structural Control and Health Monitoring, 16: 7–16.

15.

Wang

Lin

(2007) Vibration control of a tall building subjected to earthquake excitation. Journal of Sound and Vibration, 299: 757–773.

16.

Jiang

(2004) Integrated optimization of structure and control for piezoelectric intelligent trusses with uncertain placement of actuators and sensors. Computational Mechanics, 33(5): 406–412.

17.

Jiang

(2007) Integrated optimization of structural topology and control for piezoelectric smart trusses using genetic algorithm. Journal of Sound and Vibration, 307(3-5): 393–427.

18.

Zou

(2008) Integrated design optimization of base-isolated concrete buildings under spectrum loading. Structural and Multidisciplinary Optimization, 36: 493–507.