Performance‐based seismic design of tuned inerter dampers

Abstract

Summary This paper proposes a novel fully probabilistic framework for the performance‐based seismic design of structures and uses tuned inerter dampers (TID) installed in civil engineering structures subjected to seismic loads to illustrate its applicability. The framework proposed is based on stochastic reduced‐order models, which makes it computationally efficient and can be used for the design of TIDs installed in any complex nonlinear structures subjected to general nonstationary, non‐Gaussian stochastic processes. In this study, the TID is installed in a multi‐degree‐of‐freedom nonlinear structure that is subjected to synthetic seismic records. Numerical results show that the framework proposed is able to provide rigorous and robust values for the parameters of the TID. The design parameters obtained using the stochastic framework proposed are compared with benchmark deterministic approaches, tested also for a large data set of ground‐motion real records. It is shown that the stochastic approach provides insightful designs of the TID that are consistent with the site seismicity and the frequency content of the stochastic excitation.

Inerter assisted robustness of compliant liquid column damper

“…It was reported 27–30,33 that for tall buildings (where installing inerter between top story and ground becomes infeasible), the inerter can still retain its effectiveness, if connected between the top story and another story, which is at least two stories below. Enabling systems are needed to support such installation, as shown schematically in Figure 1a,b for low‐rise and relatively taller buildings, respectively.…”

“…The optimization of the TMDI was performed by considering comfort serviceability as well as energy harvesting 28 . Performance‐based design of the structure with TMDI was proposed by Radu et al 29 …”

A Review of Research on Seismic Metamaterials

“…An inerter, as mentioned previously, can realize inertial amplification and is beneficial to low-frequency vibration control, [96][97][98][99][100][101][102][103][104][105] and this has been introduced into the construction of SMs. As an inerter can easily gain large inertia without increasing the physical quality of the whole system and has advantages in flexible structure design, it can be categorized into the novel lowfrequency realization techniques.…”

Optimal design of inerter-based isolators minimizing the compliance and mobility transfer function versus harmonic and random ground acceleration excitation

“…Moreover, inerter-vibration absorbers have two unique properties, which are more attractive than TMDs: first, the inertance mass ratio of inerter-based TMDs can easily be larger than the mass ratio of TMDs without increasing the gravitational mass of the whole system (De Domenico and Ricciardi, 2018a, 2018b; Marian and Giaralis, 2014; Pietrosanti et al, 2017); second, there is no need to mount an additional mass on the object to be controlled (Hu et al, 2015). The inerter-based devices have been also investigated for mitigation of the liquid sloshing in storage tanks (Luo et al, 2016), to enhance the properties of TMDs (De Domenico and Ricciardi, 2018a; De Domenico et al, 2019), for seismic protection of building structure (Radu et al, 2019), for seismic protection of wind turbine towers (Zhang et al, 2019), for improving the seismic performance of base-isolated structure (De Domenico and Ricciardi, 2018b, 2018c; Saitoh, 2012), for vibration suppression of cables (Lazar et al, 2016), for wind-induced vibration mitigation of tall buildings using TMDI (Giaralis and Petrini, 2017), and for vehicle suppression (Chen et al, 2009, 2016; Hu et al, 2014; Smith and Wang, 2004; Wang and Chan, 2001; Wang et al, 2012) and vibration suppression (Brzeski et al, 2015; Lazar et al, 2014). The interest in passive network synthesis has also been rekindled (Chen, 2008; Chen and Smith, 2009a, 2009b; Chen et al, 2013; Wang and Chen, 2012).…”