TY - JOUR

T1 - Optimum tuned mass damper inerter under near-fault pulse-like ground motions of buildings including soil-structure interaction

AU - Elias, Said

AU - Djerouni, Salah

N1 - Funding Information: The authors express their gratitude to the Ministry of Higher Education and Scientific Research in Algeria for extending a fellowship to the second author under the National Exceptional Program (ENP). The funds for second author during his stay at the University of Iceland provided by the Earthquake Engineering Research Centre are aknowledged.

PY - 2024/5/15

Y1 - 2024/5/15

N2 - This study investigates the effectiveness of the tuned mass damper inerter (TMDI) in mitigating building response, considering the soil structure interaction (SSI). Three types of models are examined: single degree of freedom (SDOF), low-rise multi-degree of freedom (MDOF), and high-rise MDOF. Additionally, the natural period of the SDOF model is varied to explore the TMDI's efficacy across different ranges. Frequency and time domain analysis are conducted under pulse-like ground motions. The H2 and genetic algorithm (GA) are used to optimize the parameters of the TMDI. In this optimization method the transfer function for displacement response is minimized. In time domain analysis we used Newmark's integration method to solve the equation of motion for all the cases considered. It is found that the optimized TMDI proves highly effective in mitigating the displacement response of the buildings, accounting for SSI. Notably, its efficiency is more pronounced when pulse period aligns closely with the buildings' natural period. In addition, a notable pattern emerges, wherein the TMDI excels in mitigating response for buildings experiencing large motion, thereby enhancing safety under severe conditions. These findings offer valuable insights into the application and optimization of the TMDI to enhance seismic performance in various buildings, while considering complex interaction with the soil.

AB - This study investigates the effectiveness of the tuned mass damper inerter (TMDI) in mitigating building response, considering the soil structure interaction (SSI). Three types of models are examined: single degree of freedom (SDOF), low-rise multi-degree of freedom (MDOF), and high-rise MDOF. Additionally, the natural period of the SDOF model is varied to explore the TMDI's efficacy across different ranges. Frequency and time domain analysis are conducted under pulse-like ground motions. The H2 and genetic algorithm (GA) are used to optimize the parameters of the TMDI. In this optimization method the transfer function for displacement response is minimized. In time domain analysis we used Newmark's integration method to solve the equation of motion for all the cases considered. It is found that the optimized TMDI proves highly effective in mitigating the displacement response of the buildings, accounting for SSI. Notably, its efficiency is more pronounced when pulse period aligns closely with the buildings' natural period. In addition, a notable pattern emerges, wherein the TMDI excels in mitigating response for buildings experiencing large motion, thereby enhancing safety under severe conditions. These findings offer valuable insights into the application and optimization of the TMDI to enhance seismic performance in various buildings, while considering complex interaction with the soil.

KW - Building

KW - Earthquake

KW - Multi-degree of freedom (MDOF)

KW - Optimization methods

KW - Seismic resilience

KW - Soil structure interaction (SSI)

KW - Tuned mass damper inerter (TMDI)

UR - http://www.scopus.com/inward/record.url?scp=85184523115&partnerID=8YFLogxK

U2 - 10.1016/j.jobe.2024.108674

DO - 10.1016/j.jobe.2024.108674

M3 - Article

AN - SCOPUS:85184523115

VL - 85

JO - Journal of Building Engineering

JF - Journal of Building Engineering

M1 - 108674

ER -