Life-cycle damage-based cost analysis of tall buildings equipped with tuned mass dampers

Ierimonti, Laura; Venanzi, Ilaria; Caracoglia, Luca

doi:10.1016/j.jweia.2018.03.009

Cited by 34 publications

(18 citation statements)

References 30 publications

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“…These fragility curves represent the damage experienced by nonstructural components, including glass panels composing the building envelope and internal partitions, during a wind event. [47][48][49] In the absence of experimental data for wind-induced damage, the fragility curves reported in FEMA-P-58 for earthquake excitation are employed, along with the costs required to repair or replace the damaged components. [36] As an example, Figure 4b reports SDR-related fragility curves for gypsum partitions, characterized by three damage states (n DS = 3) related to the SDR: DS 1 , minor cracking of wall board, DS 2 , moderate cracking of wall, and DS 3 , significant cracking of wall.…”

Section: Lcc Modelmentioning

confidence: 99%

Life‐cycle cost optimization of wind‐excited tall buildings using surrogate models

Micheli

Alipour

Laflamme

2021

Structural Design Tall Build

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As buildings become taller and slender, they become more sensitive to wind-induced vibrations. Commonly used solutions to mitigate wind-induced vibrations are structural system modifications and integration of supplemental damping devices. This paper presents a procedure to optimize the structural system and the damping device configuration with the goal of reducing wind-induced vibrations. The performance of the building is expressed in terms of life-cycle cost (LCC), allowing to consider not only the initial costs associated with the integration of wind-induced vibration mitigation system but also the lifetime savings due to vibration suppression. The proposed procedure employs a set of Kriging surrogate models to analyze a large number of different structural properties/damping device characteristics. The combination that minimizes the LCC is taken as the optimal configuration. The procedure is demonstrated on a wind-sensitive 39-story building equipped with passive dampers. Results demonstrated that the accuracy of the Kriging surrogate models depends on the number of input variables considered, with an average root mean square error of 2.5% for the floors without dampers and 5% for the floors equipped with damping devices, respectively. It was also demonstrated that optimal stiffness-damping device configuration and LCC depend on the assumed cost of the structural system modifications.

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Section: Lcc Modelmentioning

confidence: 99%

Life‐cycle cost optimization of wind‐excited tall buildings using surrogate models

Micheli

Alipour

Laflamme

2021

Structural Design Tall Build

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“…More specifically, LCC concepts have also been used to analyze and design TMDs, for the purposes of either wind mitigation (Wang et al 2015a;Ierimonti et al 2018) or seismic mitigation (Lee et al 2012;Matta 2015;Ruiz et al 2016;Matta 2018). Conversely, to the best of the author's knowledge, no application of LCC concepts to NESs is reported in the literature, though the amplitude dependence of their performance should make them ideal candidates for LCC assessment.…”

Section: Conventional Versus Lcc Performance Measuresmentioning

confidence: 99%

“…Additionally, because damage to building contents may be sensitive not only to θ but also to the acceleration of their supports, another significant EDP is the peak story acceleration A. θ-sensitive contents are typically claddings and partitions in their in-plane mode. A-sensitive contents are typically furniture and equipment (Elenas and Meskouris 2001), suspended ceilings and automatic sprinklers (Ramirez et al 2012;Ierimonti et al 2018), as well as claddings and partitions in their out-of-plane mode.…”

Section: Engineering Demand Parameters For Lcc Analysismentioning

confidence: 99%

Seismic effectiveness and robustness of tuned mass dampers versus nonlinear energy sinks in a lifecycle cost perspective

Matta

2020

Bull Earthquake Eng

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Tuned mass dampers (TMDs) and nonlinear energy sinks (NESs) are two viable options for passively absorbing structural vibrations. In seismic applications, a trade-off exists in their performance, because TMDs’ effectiveness varies with the structural stiffness while NESs’ effectiveness varies with the earthquake intensity. To investigate this trade-off systematically, a lifecycle cost- (LCC-) oriented robust analysis and design method is here proposed, in which the effectiveness of a solution is measured by the reduction it entails in the expected cost of future seismic losses. In it, structural stiffness variability is modelled using a worst-case approach with lower and upper bounds, while seismic intensity variability is inherently captured by the incremental dynamic analyses underlying every LCC evaluation. The resulting worst-case lifetime cost provides a rational metric for discussing pros and cons of TMDs and NESs, and becomes the objective function for their robust optimization. The method is applied to the design of TMDs and NESs on a variety of single- and multi-story linear building models, located in a moderate-to-high seismic hazard region. Mass ratios from 1 to 10% and structural stiffness reductions up to 4 times are considered. Results show that TMDs are consistently more effective than NESs even in the presence of large stiffness reductions, provided that structural stiffness uncertainty is considered in design. They also show that a conventional robust H∞ design provides for TMDs a solution which is very close to that obtained by minimizing the proposed LCC metric.

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“…[ 10 ] Usually, the first vibration mode dominates wind‐induced displacement responses of high‐rise buildings. [ 11,12 ] Therefore, a TMD, which behaves as a SDOF vibration absorber, is exactly suitable to wind‐induced vibration control. TMDs already have many real‐world applications in wind‐induced vibration control.…”

Section: Introductionmentioning

confidence: 99%

Study on adaptive‐passive eddy current pendulum tuned mass damper for wind‐induced vibration control

Wang

Nagarajaiah

Shi

et al. 2020

Structural Design Tall Build

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SummaryTuned mass dampers (TMDs) are used to control wind‐excited responses of high‐rise building as traditional vibration control devices. A TMD will have an excellent control effect when it is well tuned. However, a traditional passive TMD is sensitive to the frequency deviation; the mistuning in frequency and damping ratio both will decrease its control effect. In the previous research, an adaptive‐passive variable pendulum TMD (APVP‐TMD) is proposed, which can identify the TMD optimal frequency and retune itself through varying its pendulum length. However, it is found that the frequency variation will change the TMD damping ratio, and an unreasonable damping ratio will lead to a decrement in the robustness of a TMD. In this study, an adaptive‐passive eddy current pendulum TMD (APEC‐PTMD) is presented, which can retune the frequency through varying the pendulum length, and retune the damping ratio through adjusting the air gap between permanent magnets and conductive plates. An adjustable eddy current pendulum TMD (PTMD) is tested, and then, a single‐degree‐of‐freedom (SDOF) primary model with an APEC‐PTMD is built, and functions of frequency and damping ratio retuning are verified. The 76‐story wind‐sensitive benchmark model is proposed in the case study. The original model without uncertainty and ±15% stiffness uncertainty models are considered, and response control effects of different controllers are compared. Results show that because the APEC‐PTMD can both retune its frequency and damping ratio; it is more robust and effective than a passive TMD. It is also found that the APEC‐PTMD has a similar control effect with the active TMD, with little power consumption and better stability.

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Life-cycle damage-based cost analysis of tall buildings equipped with tuned mass dampers

Cited by 34 publications

References 30 publications

Life‐cycle cost optimization of wind‐excited tall buildings using surrogate models

Life‐cycle cost optimization of wind‐excited tall buildings using surrogate models

Seismic effectiveness and robustness of tuned mass dampers versus nonlinear energy sinks in a lifecycle cost perspective

Study on adaptive‐passive eddy current pendulum tuned mass damper for wind‐induced vibration control

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