Enhancing seismic resilience of nonlinear structures through optimally designed additional mass dampers

International Journal of Non-Linear Mechanics, Journal Year: 2024, Volume and Issue: 162, P. 104717 - 104717

Published: March 27, 2024

Language: Английский

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Reliability-based simultaneous optimization of quantities, positions, and parameters of inerter-based vibration absorbers to minimize the probability of building failure during earthquakes via the CIOA

Mechanics Based Design of Structures and Machines, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Jan. 2, 2025

This study introduces a novel approach for the reliability-based optimal design of inerter-based dynamic vibration absorbers (IDVAs), such as tuned inerter dampers (TIDs) and mass damper inerters (TMDIs) to be implemented in buildings located seismic areas. Additionally, proposed is also applied conventional (TMDs) comparison purposes. Rather than focusing solely on optimizing parameters IDVAs overlooking uncertainties through deterministic optimizations, here seeks minimize risk building failure, using fragility curves, by not only device but quantities positions IDVAs, considering inherent associated with excitation. To achieve this, Circle-Inspired Optimization Algorithm (CIOA), modern optimization technique developed authors, implemented. Actual accelerogram data from target site are utilized assess risk, determining expected annual exceedance rate peak ground acceleration (PGA). Probability distribution functions PGA one 50-year periods fitted estimate which then evaluated numerical simulations ascertain reliability. illustrate methodology, it studied Cúcuta, Colombia, where earthquake available. Robust estimators system reliability computed diverse records database. The findings demonstrate that simultaneous methodology significantly enhances building, underscoring effectiveness reducing probability failure regions substantial activity, showing solutions TMDIs or TIDs more advantageous those TMDs.

Language: Английский

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Machine-Learning based performance assessment of TMD-equipped buildings subjected to near-field pulse-like ground motions

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112380 - 112380

Published: March 1, 2025

Language: Английский

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Optimal Design of Tuned Mass Damper Inerter (TMDI) Parameters for Enhanced Vibration Reduction in Damped Structures: An Analytical and Numerical Study

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112768 - 112768

Published: April 1, 2025

Language: Английский

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Seismic Performance Assessment of Optimal Tandem-Based Tuned Mass Damper Inerters

Buildings, Journal Year: 2025, Volume and Issue: 15(9), P. 1441 - 1441

Published: April 24, 2025

In the current work, two novel tandem-based tuned mass damper configurations are introduced. These extend recently proposed tandem inerter (TTMDI) by replacing linking dashpot with an (i.e., inerter-connected TTMDI (ICTTMDI)), and integrated (I-TTMDI) integrating (TTMD) configurations. The control efficiency of optimally designed dampers for a single-degree-of-freedom (SDOF) system was evaluated in uniform framework to reveal compare performances ICTTMDI I-TTMDI those other optimum design all studied determined particle swarm optimization (PSO) algorithm. evaluation included effectiveness frequency domain that norm maximum reduction displacement absolute acceleration time under 21 earthquake records different characteristics. Additionally, strokes dampers, structure energies, power spectral densities (PSDs) responses were investigated. revealed best configuration determining distributions inertance between links, respectively. not only demonstrated improved response across measures but also maintained remarkable robustness (far-fault, near-fault forward-directivity, fling-step records). Furthermore, advantages side distribution particularly effective at widening operating band, breaking through traditional limitations TMD-based devices. consistent newly prove they can be used advance development more reliable structural systems.

Language: Английский

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The Application of Machine Learning and Optimisation Algorithm for Magnetorheological Damper Dynamics Behaviour: A Review

Journal of Vibration Engineering & Technologies, Journal Year: 2025, Volume and Issue: 13(4)

Published: March 10, 2025

Language: Английский

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Characterization of the Sedimentary Cover in the City of Aïn Témouchent, Northwest Algeria, Using Ambient Noise Measurements

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(6), P. 2967 - 2967

Published: March 10, 2025

The city of Aïn Témouchent, located in northwest Algeria at the westernmost part Lower Cheliff Basin, has experienced several moderate earthquakes, most significant which occurred on 22 December 1999 (Mw 5.7, 25 fatalities, severe damage). In this study, ambient noise measurements from 62 sites were analyzed using horizontal-to-vertical spectral ratio (HVSR) method to estimate fundamental frequency (f0) and amplitude (A0). inversion HVSR curves provided sedimentary layer thickness shear wave velocity (Vs) estimates. Additionally, four spatial autocorrelation (SPAC) array refined Rayleigh dispersion curves, improving Vs profiles (150–1350 m/s) sediment estimates (up 390 m industrial zone). Vs30 vulnerability index maps developed classify soil types assess liquefaction potential within city.

Language: Английский

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Reliability-informed design table for optimizing tuned mass-damper-inerter systems to improve structural seismic performance

Probabilistic Engineering Mechanics, Journal Year: 2025, Volume and Issue: unknown, P. 103769 - 103769

Published: May 1, 2025

Language: Английский

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Effect of basic parameters defining principal soil-structure interaction on seismic control of structures equipped with optimum tuned mass damper

Soil Dynamics and Earthquake Engineering, Journal Year: 2024, Volume and Issue: 189, P. 109085 - 109085

Published: Nov. 22, 2024

Language: Английский

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Torsional Behavior Enhancement of Asymmetric-Plan Building Structures Using Optimum Tuned Mass Damper Inerter

Journal of Earthquake Engineering, Journal Year: 2024, Volume and Issue: 29(3), P. 669 - 690

Published: Dec. 5, 2024

Torsional irregularity can significantly affect the seismic performance of structures, potentially resulting in structural failure. This paper aims to mitigate substantial levels torsional displacements experienced torsionally coupled shear building structures subjected bi-directional earthquakes by optimizing a passive control device, namely, double-tuned mass damper inerter. Particle Swarm Optimization is employed minimize two discrete objective functions select optimal placement and design parameters Tuned inerters installed asymmetric-plan with different irregularity. The results demonstrate that this approach highly effective for regulating behavior during events.

Language: Английский

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