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

Abstract

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.

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

“…[2][3][4][5] Previous studies have investigated the use of TMDs for controlling the response of buildings and civil structures to earthquakes. [6][7][8][9][10][11] The effectiveness of TMDs for reinforced concrete and steel high-rise buildings considering soil-structure interaction has been analyzed. 12,13 The response reduction effects of a hysteretic TMD system incorporated into the top of a building model under seismic excitations have been studied.…”

The optimum design of particle tuned mass damper for structural seismic control considering soil-structure interaction

“…However, the above references that studied the PTMD's effectiveness on structural seismic responses and the optimization design of the PTMD have not included the SSI effects. Liu et al (2020) carried out shaking table tests of multistory frame structure equipped with PTMD in SSI system. Therefore, further study on the optimization design of PTMD considering SSI effects is necessary to develop the efficiency of its control strategy.…”

Seismic performance evaluation of a tall building with dual lateral system consisting of moment frames and tuned mass dampers

“…A TMD consists of an auxiliary mass-spring-dashpot system attached to the main structure to attenuate and dissipate undesirable vibrations. The primary application of TMDs was to mitigate the vibrations caused by quasi-stationary dynamic loads (such as wind loads) Lu et al, 2017;Elias & Matsagar, 2018;Dai et al, 2020), not earthquake loads, because their dependency on the seismic excitation properties jeopardizes their performance and they might even exacerbate the structural responses (Kaynia et al, 1981;Rana & Soong, 1998;Liu et al, 2020). Nevertheless, their application to mitigate seismic demands on the structures has also been extensively studied (Lukkunaprasit & Wanitkorkul, 2001;Ikago et al, 2012;Matta, 2013;Anajafi & Medina, 2018a).…”