Vibration Control of a Tall Benchmark Building under Wind and Earthquake Excitation

Taha, A. E.

doi:10.1061/(asce)sc.1943-5576.0000569

Cited by 12 publications

(10 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kwag et al 28 . transferred a probabilistic risk‐assessment framework into a deterministic performance‐based framework to consider multiple hazards in structural design, and other studies have focused on the development of vibration control systems for tall buildings to reduce multi‐hazard vibrations 29,30 …”

Section: Introductionmentioning

confidence: 99%

“…Kwag et al 28 transferred a probabilistic risk-assessment framework into a deterministic performance-based framework to consider multiple hazards in structural design, and other studies have focused on the development of vibration control systems for tall buildings to reduce multi-hazard vibrations. 29,30 Most of the studies above have mainly focused either on generating multi-hazard scenarios or assessing structural performance under multiple hazards by applying each hazard separately, thus ignoring possible subsequent effects (e.g. damage accumulation, fatigue, strength and stiffness deterioration).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A multi‐hazard analysis framework for earthquake‐damaged tall buildings subject to thunderstorm downbursts

Song

Skalomenos

Martínez-Vázquez

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

This study develops a generalised multi‐hazard analysis framework for evaluating the impact of secondary hazard events on structures that have previously been damaged by major hazardous events. More specifically, the present work investigates the effects of thunderstorm downbursts on earthquake‐damaged tall steel buildings giving an emphasis in assessing the revised accumulated earthquake‐wind ductility demands. The novel approach is validated on a 20‐storey steel building. The structure is initially subjected to a ductility‐controlled pushover analysis to simulate the earthquake‐induced damage, and then, a parametric dynamic analysis is performed using damaged structure models under synthetic downburst time‐histories developed for various wind profiles, wind velocities and terrain types. The method accurately controls the damage level induced by the primary hazard and separately assesses secondary hazard effects which enables a direct quantification of the new multi‐hazard design requirements. This can provide effective guidance in the stage of preliminary structural design or post‐hazard assessment of structures identifying new serviceability limits, as well as support repair procedures and decision‐making frameworks for existing structures to prevent collapse. The results demonstrate a significant increase up to three to four times in ductility demands of the structure after the occurrence of the strong downburst winds, compared with the ductility demands that were initially imposed by the varying severity degrees of the earthquake.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multi‐hazard analysis framework for earthquake‐damaged tall buildings subject to thunderstorm downbursts

Song

Skalomenos

Martínez-Vázquez

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…Generally speaking, wind-induced vibrations can be reduced in three different ways: (1) by changing the stiffness or mass, (2) by increasing the damping with passive or active control devices [3][4][5][6][23][24][25][26], and (3) by reducing wind loads with aerodynamic shapes such as tapering. e fact that a tapered tall building might spread the vortex shedding over a broad range of frequencies makes it more effective for reducing across-wind responses has been established [27].…”

Section: Introductionmentioning

confidence: 99%

Analytical Simulation of 3D Wind-Induced Vibrations of Rectangular Tall Buildings in Time Domain

Huergo

Hernández-Barrios

2022

Shock and Vibration

View full text Add to dashboard Cite

The Monte Carlo simulation method for along-wind loads on tall buildings performed in the time and space domain may be the only analytical viable option for specific problems such as nonlinearity behavior, nonclassically damping, and detailed structural models in commercial software. However, both across-wind and torsional-wind loads due to vortex shedding are not usually simulated in time domain because the vertical decay constants are unknown or the empirical coherence functions cannot be applied in Monte Carlo simulation methods. In this paper, the spectral representation (SR) method is used to simulate in time domain the along-wind, across-wind, and torsional-wind loads on rectangular tall buildings considering the vertical correlation between the signals. The Krenk root-coherence function is used for the normalized cross-spectrum on the along-wind direction, whereas the Davenport root-coherence function is used for the other two types of wind loads. For both across-wind and torsional-wind loads, the Davenport root-coherence function was assessed at the vortex shedding frequency by changing the vertical decay constants until converge between the Davenport model and the Liang empirical coherence model was achieved. Based on a three‐dimensional model with two translational and one torsional degree of freedom for each floor, the proposed vertical decay constants were validated by comparing the elastic response between frequency domain and time domain approaches. Generally speaking, the results show that peak displacements are significantly underestimated for both across-wind and torsional directions when vertical correlation is neglected. In addition, the advantages of time domain simulation were shown by performing a nonlinear time history analysis considering a bilinear isotropic material hardening model in both translational directions.

show abstract

“…A design framework that takes into account seismic loading and strong synoptic wind has recently been proposed [13]. Other studies focused on dealing with multihazards are [14,15], although no studies have been conducted to determine the ductility requirements of damaged structures under additional effects of thunderstorm downbursts. This paper investigates the seismic response and the effects of the downburst outflow wind at mean speeds ranging between 33m/s and 75m/s on the ductility of damaged buildings.…”

Section: Introductionmentioning

confidence: 99%

Seismic Assessment of Steel Frames Subjected to Multi-hazards

Badla

2022

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

This paper investigates the effects induced by thunderstorm downbursts to steel building structures that have been previously damaged during strong directivity ground motion events. To achieve this objective, one four-story steel moment-resisting frame that was tested at the E-defense laboratory, Japan was analyzed in the nonlinear range using OpenSees. The seismic response was numerically simulated, obtaining a satisfactory agreement with the experimental evidence, revealing that the effects of such wind events and vertical ground motions were significant. These effects should be addressed during the design of low and medium buildings subjected to initial damage and subsequent thunderstorm downbursts and the ductility demands on structures subjected to multi-hazards can be quantified. The wind loads are applied as an externally applied dynamic load and the revised ductility demands are determined directly. The obtained results are compared to what is expected by experimental tests.

show abstract

Vibration Control of a Tall Benchmark Building under Wind and Earthquake Excitation

Cited by 12 publications

References 26 publications

A multi‐hazard analysis framework for earthquake‐damaged tall buildings subject to thunderstorm downbursts

A multi‐hazard analysis framework for earthquake‐damaged tall buildings subject to thunderstorm downbursts

Analytical Simulation of 3D Wind-Induced Vibrations of Rectangular Tall Buildings in Time Domain

Seismic Assessment of Steel Frames Subjected to Multi-hazards

Contact Info

Product

Resources

About