Structural performance and cost analysis of wind-induced vibration control schemes for a real super-tall building

Wang, Dayang; Tse, Kam Tim; Zhou, Yun; Li, Qingxiang

doi:10.1080/15732479.2014.925941

Cited by 25 publications

(17 citation statements)

References 32 publications

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“…The reductions in maximum

{\ddot{u}}_{peak}, {\ddot{u}}_{rms}, italicΔ u_{peak}, italicΔ u_{rms}

are further normalized by the ratio of the number of outfitted stories over the total number of stories. The normalized reductions in peak acceleration are also computed for simulations of various buildings with controllers proposed by different researchers . The adopted wind speed and the type of the structures in these references are variegated.…”

Section: Results Of Numerical Simulations and Discussionmentioning

confidence: 99%

“…However, they suffer the drawback of not being functional at low‐frequency wind excitations. Hence, for mitigation of wind‐induced vibrations in a full‐scale structure, linear and nonlinear VDs have been implemented either in large numbers (as elucidated in Sections and ) or in combination with passive or active TMD/TLCDs …”

Section: Introductionmentioning

confidence: 99%

“…Hence, for mitigation of wind-induced vibrations in a full-scale structure, linear and nonlinear VDs have been implemented either in large numbers (as elucidated in Sections 4.1 and 4.2.4) or in combination with passive or active TMD/TLCDs. 11,[45][46][47][48][49][50][51] Hysteretic dampers have been widely recommended for seismic energy dissipation either as isolators or as connected parallel to the structure. However, research on hysteretic dampers for wind-induced vibration mitigation is quite limited.…”

mentioning

confidence: 99%

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Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Ali

Alexander

Ray

2019

Struct Control Health Monit

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Summary Mitigation of wind‐induced vibrations in tall buildings has been taken seriously for decades for the safety of the load bearing members, nonstructural elements, and the building envelope, as well as for the comfort of the occupants. Among various technologies to mitigate these vibrations, tuned mass dampers with various improvisations, active or semiactive controls, and viscous dampers are proposed and used extensively. Although these technologies are dependent on the frequency of vibration, research on frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations are quite limited. This paper evaluates the efficiency of hysteretic dampers in suppressing wind‐induced vibrations. Inelastic dynamic wind‐load analyses are performed with two regular three‐dimensional buildings and one 76‐story benchmark two‐dimensional building. It is found that hysteretic dampers perform exceedingly better than the state‐of‐the‐art control systems because they can absorb energy near the natural frequencies of the parent structure, as well as within the frequency bandwidth of windstorms.

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“…The reductions in maximum

{\ddot{u}}_{peak}, {\ddot{u}}_{rms}, italicΔ u_{peak}, italicΔ u_{rms}

Section: Results Of Numerical Simulations and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Ali

Alexander

Ray

2019

Struct Control Health Monit

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“…In Taflanidis and Beck, the lack of appropriate TMD cost models is recognized as a severe impediment to the economic evaluation of TMDs' seismic performance. In Wang et al, based on the estimations provided by 2 accredited Chinese construction companies, the total cost (including design, construction, installation, and maintenance) of a 700 ton passive translational TMD is reported to vary between 0.75 M$ (i.e., 1070 $/ton) and 0.96 M$ (i.e., 1370 $/ton). In Ruiz et al, the cost of a unidirectional passive translational TMD is assumed to be mass proportional, with a unit cost of 2500 $/ton.…”

Section: Lifecylce Cost‐optimal Seismic Design Of Tuned Mass Dampers mentioning

confidence: 99%

Lifecycle cost optimization of tuned mass dampers for the seismic improvement of inelastic structures

Matta

2017

Earthq Engng Struct Dyn

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Summary The seismic performance of tuned mass dampers (TMDs) on structures undergoing inelastic deformations may largely depend on the ground motion intensity. By estimating the impact of each seismic intensity on the overall cost of future seismic damages, lifecycle cost (LCC) proves a rational metric for evaluating the benefits of TMDs on inelastic structures. However, no incorporation of this metric into an optimization framework is reported yet. This paper presents a methodology for the LCC‐optimal design of TMDs on inelastic structures, which minimizes the total seismic LCC of the combined building‐TMD system. Its distinctive features are the assumption of a mass‐proportional TMD cost model, the adoption of an iterative suboptimization procedure, and the initialization of the TMD frequency and damping ratios according to a conventional linear TMD design technique. The methodology is applied to the seismic improvement of the SAC‐LA benchmark buildings, taken as representative of standard steel moment‐resisting frame office buildings in LA, California. Results show that, despite their limited performance at the highest intensity levels, LCC‐optimal TMDs considerably reduce the total LCC, to an extent that depends on both the building vulnerability and the TMD unit cost. They systematically present large mass ratios (around 10%) and frequency and damping ratios close to their respective linearly designed optima. Simulations reveal the effectiveness of the proposed design methodology and the importance of adopting a nonlinear model to correctly evaluate the cost‐effectiveness of TMDs on ordinary structures in highly seismic areas.

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“…In the field of civil engineering, the use of TMDs has been widely studied and developed as a vibration control technology [8,9]. e range of application of TMD technology includes super high-rise structures [10], towering structures [11], and large span structures [12]. However, a single TMD has some disadvantages, including frequency sensitivity and poor robustness.…”

Section: Introductionmentioning

confidence: 99%

Optimization and Damping Performance of a Coal‐Fired Power Plant Building Equipped with Multiple Coal Bucket Dampers

Peng

Kang

Lai

et al. 2018

Advances in Civil Engineering

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A parameter optimization design method is proposed for multiple coal bucket dampers (CBDs) to reduce the seismic response of coal-fired power plants. To test the damping effect of the optimized CBDs, a 1 : 30 scale shaking table test model of a power plant structure was fabricated. A comparative testing program was conducted using three seismic excitations on a model with and without CBDs. A finite element analysis model, replicating the conditions of the shaking table test, was constructed for comparison, and the shock absorption effects of CBDs subjected to 22 groups of far-field seismic action and 28 groups of near-field seismic action were analyzed. Finally, the influence of changes in the structural period on the seismic response of the CBDequipped structure was studied. e results indicate that the use of CBDs in a coal-fired power plant structure, based on an optimization design method for multiple-tuned mass dampers (MTMDs), results in a significant reduction in the structure displacement response, displays a certain discreteness under different excitations, and maintains a certain damping stability even as the structural period changes. Overall, the use of CBDs is a promising prospect for improving the seismic performance of coalfired power plant structures.

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Structural performance and cost analysis of wind-induced vibration control schemes for a real super-tall building

Cited by 25 publications

References 32 publications

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Lifecycle cost optimization of tuned mass dampers for the seismic improvement of inelastic structures

Optimization and Damping Performance of a Coal‐Fired Power Plant Building Equipped with Multiple Coal Bucket Dampers

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