Fuzzy control of asymmetric plan buildings with active tuned mass damper considering soil-structure interaction

Nazarimofrad, Ebrahim; Zahrai, Seyed Mehdi

doi:10.1016/j.soildyn.2017.09.020

Cited by 48 publications

(17 citation statements)

References 25 publications

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“…5,6 In this context, various passive control equipment, including tuned mass dampers, [7][8][9][10][11][12][13][14] viscous dampers, [15][16][17][18] and base isolations [19][20][21][22] have been applied to reduce the effects of torsion in the asymmetric structures. Also, dynamic responses of asymmetric structures have been significantly reduced by the use of different equipment and methods of active [23][24][25][26][27] and semi-active [28][29][30] control strategies. In most of these studies, it is assumed that the controlled structural system is a time-invariant system, which no damage happens to it.…”

Section: Introductionmentioning

confidence: 99%

Torsional control of asymmetric buildings using online 3‐D damage detection and adaptive stiffness devices

Karami

Ahmadi

2021

Struct Control Health Monit

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Developing a smart civil structure, in which the structure instantaneously identifies damages during vibration and makes decisions to compensate or reduce them, is one of the new issues in the seismic control of structures. One of the most important challenges in asymmetric buildings is the torsion due to the damage occurrence in the structure during severe excitation. The aim of this study is to try to reduce the torsional effects and dynamic responses of the structure by combining two strategies, including real time structural health monitoring (SHM) and semi-active control. Hence, a new damage detection method based on identified Markov parameters of the system is proposed to identify the damage in 3-D shear model structures. Also, in order to create a smart structure, a new controller is designed to regulate mechanical characteristics of the installed adaptive stiffness devices based on the detected damages and eccentricity variations in the structure. The performance of the proposed

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Section: Introductionmentioning

confidence: 99%

Torsional control of asymmetric buildings using online 3‐D damage detection and adaptive stiffness devices

Karami

Ahmadi

2021

Struct Control Health Monit

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“…In general, vibration control systems are classified as active, semi-active, passive, and hybrid control systems. The active vibration control is beneficial to a wide frequency range of vibrations in tall buildings (Nazarimofrad and Zahrai, 2017; Heidari et al, 2018). The most used active control device for structures is the active tuned mass damper (ATMD).…”

Section: Introductionmentioning

confidence: 99%

Fuzzy neural network control algorithm for asymmetric building structure with active tuned mass damper

Yan¹,

Shi³

2020

Journal of Vibration and Control

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Asymmetric structures experience torsional effects when subjected to seismic excitation. The resulting rotation will further aggravate the damage of the structure. A mathematical model is developed to study the translation and rotation response of the structure during seismic excitation. The motion equations of the structures which cover the translation and rotation are obtained by the theoretical derivations and calculations. Through the simulated computation, the translation and rotation response of the structure with the uncontrolled system, the tuned mass damper control system, and active tuned mass damper control system using linear quadratic regulator algorithm are compared to verify the effectiveness of the proposed active control system. In addition, the linear quadratic regulator and fuzzy neural network algorithm are used to the active tuned mass damper control system as a contrast group to study the response of the structure with different active control method. It can be concluded that the structure response has a significant reduction by using active tuned mass damper control system. Furthermore, it can be also found that fuzzy neural network algorithm can replace the linear quadratic regulator algorithm in an active control system. Because fuzzy neural network algorithm can control the process on an uncertain mathematical model, it has more potential in practical applications than the linear quadratic regulator control method.

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“…Khoshnoudian et al 11 investigated the effectiveness of TMDs for structural systems undergoing foundation uplift and soil failure. Nazarimofrad and Zahrai 12 presented a mathematical model to consider SSI effects in vibration control of an irregular multistory building using active TMDs. Mortezaie and Rezaie 13,14 evaluated TMDs' control performance of a high‐rise concrete structure from performance‐based seismic assessment perspective considering SSI effects.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of particle tuned mass damper devices for pile‐supported multi‐story frames under seismic excitations

Liu

et al. 2020

Struct Control Health Monit

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Particle tuned mass dampers (PTMDs) have attracted recent attention for reducing seismic demands on large structures. Yet, research on the control performance of PTMDs for soil-structure interaction (SSI) systems under earthquake excitations is non-existent. This paper presents a comprehensive investigation on the effectiveness of PTMD devices for pile-supported multistory frames through shaking table tests and simulations with validated numerical models. Particle damping effectiveness is analyzed through comparisons with systems lacking external damping. The test results show that the mitigation effects of PTMDs on the maximum structural accelerations and displacements decrease when SSI effects are present and that particle damping improves control performance of conventional TMDs. Detailed finite element models of the tested specimens are also constructed-including SSI effects-and validated initially against the test data. In these models, the soil nonlinearities are considered using a bounding surface plasticity model, and the PTMD devices are simplified to an equivalent single-particle damper using an analytical model. The validated numerical models can be used in further parametric studies involving optimal PTMD design and deployment within a performance-based seismic engineering framework.

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Fuzzy control of asymmetric plan buildings with active tuned mass damper considering soil-structure interaction

Cited by 48 publications

References 25 publications

Torsional control of asymmetric buildings using online 3‐D damage detection and adaptive stiffness devices

Torsional control of asymmetric buildings using online 3‐D damage detection and adaptive stiffness devices

Fuzzy neural network control algorithm for asymmetric building structure with active tuned mass damper

Effectiveness of particle tuned mass damper devices for pile‐supported multi‐story frames under seismic excitations

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