A study on the wind-induced vibration response material characteristics of typical and atypical high-rise buildings according to changes in corner shapes material

This paper presents a simulation approach based on the finite element method (FEM) to analyze the wind-induced vibration response of an inspection vehicle for main cables. First, two finite element (FE) models of a suspension bridge and a main cable-inspection vehicle coupled system are established using MIDAS Civil software and ANSYS software, respectively. Second, the mean wind speed distribution characteristics at a bridge site are analyzed, and the wind field is simulated based on the spectral representation method (SRM). Third, a modal analysis and a wind-induced vibration response transient analysis of the suspension bridge FE model are completed. Fourth, the vibration characteristics of the inspection vehicle are analyzed by applying fluctuating wind conditions and main cable vibration displacements in the main cable-inspection vehicle coupled FE model. Finally, based on the ISO2631-1-1997 standard, a vehicle ride comfort evaluation is performed. The results of the suspension bridge FE modal analysis are in good accordance with those of the experimental modal test. The effects of the working height, number of nonworking compressing wheels, and number of nonworking driving wheels during driving are discussed. When the average wind speed is less than 13.3 m/s, the maximum total weighted root mean square acceleration (av) is 0.1646 m/s2 and the vehicle ride comfort level is classified as “not uncomfortable.” This approach provides a foundation for the design and application of inspection vehicles.

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Analysis of Wind-Induced Vibration Response for a Long-Span Double-Arch-Support Steel Structure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.578-579.313 ◽

2014 ◽

Vol 578-579 ◽

pp. 313-317

Author(s):

Lan Chen ◽

Bo Yin ◽

Zhi Guang Huang

Keyword(s):

Simulation Analysis ◽

Wind Tunnel Test ◽

Steel Structure ◽

Vibration Response ◽

Natural Vibration Frequency ◽

Long Span ◽

Roof Structure ◽

Arch Support ◽

Wind Induced Vibration ◽

Wind Induced Vibration Response

As a new long-span double-arch-support steel structure system is applied to a stadium, it is necessary to study the wind-induced vibration response of the roof structure to meet the need of design. The modal analysis and the response analyses which include static wind response and wind-induced vibration response are calculated by ANSYS. The results show that the natural vibration frequency of structure is intensive (0.93 Hz~4.2 Hz). The most unfavorable wind direction angle of 135o is selected to study the wind-induced vibration response. And the wind-induced vibration coefficient calculated is satisfactory when compared with the wind tunnel test. It can be seen that it is feasible to use the stochastic simulation analysis method of wind-induced vibration response to get the wind-induced vibration coefficient.

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Wind-induced vibration response analysis of Chinese solar greenhouses

Computers and Electronics in Agriculture ◽

10.1016/j.compag.2020.105954 ◽

2021 ◽

Vol 181 ◽

pp. 105954

Author(s):

Cong Wang ◽

Yingchun Jiang ◽

Xiaoye Li ◽

Yikui Bai ◽

Tieliang Wang

Keyword(s):

Vibration Response ◽

Response Analysis ◽

Wind Induced Vibration ◽

Wind Induced Vibration Response

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The Wind-Induced Vibration Response for Tower Crane Based on Virtual Excitation Method

The Open Mechanical Engineering Journal ◽

10.2174/1874155x01408010201 ◽

2014 ◽

Vol 8 (1) ◽

pp. 201-205 ◽

Cited By ~ 3

Author(s):

Hongqi Jiang ◽

Shuncai Li

Keyword(s):

Response Spectra ◽

Vibration Response ◽

Induced Response ◽

Response Analysis ◽

Multiple Point ◽

Tower Crane ◽

Virtual Excitation ◽

Wind Induced Vibration ◽

Wind Induced Vibration Response ◽

Excitation Method

The dynamics of Tower Crane is complicated by wind excitation which complicates the wind-induced vibration response analysis. The random wind-induced response analysis of tower crane is presented based on finite element method and virtual excitation method. The pulsating wind loads change into multiple-point correlation stationary excitation. This paper uses Davenport’s wind speed spectrum which does not change with height, and considers multiplepoint correlation of wind-induction. The tower crane was employed as a numerical example; the response spectra and Mean Square Root (RMS) of the tower crane were obtained by wind-induced vibration. The results indicate that the vibration of the tower crane showed a greater response in low frequency with the One-third Octave acceleration RMS being lower. Finally, the influences of the wind-induced vibration on comfort were analyzed.

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Distributed Multiple Tuned Mass Dampers for Wind Vibration Response Control of High-Rise Building

Journal of Engineering ◽

10.1155/2014/198719 ◽

2014 ◽

Vol 2014 ◽

pp. 1-11 ◽

Cited By ~ 17

Author(s):

Said Elias ◽

Vasant Matsagar

Keyword(s):

Equations Of Motion ◽

Vibration Response ◽

Mode Shapes ◽

Tuned Mass Dampers ◽

Response Control ◽

High Rise ◽

High Rise Building ◽

Wind Vibration ◽

Wind Induced Vibration ◽

Multiple Tuned Mass Dampers

Multiple tuned mass dampers (MTMDs) distributed along height of a high-rise building are investigated for their effectiveness in vibration response control. A 76-storey benchmark building is modeled as shear type structure with a lateral degree of freedom at each floor, and tuned mass dampers (TMDs) are installed at top/different floors. Suitable locations for installing the TMDs and their tuning frequencies are identified based, respectively, on the mode shapes and frequencies of the uncontrolled and controlled buildings. Multimode control strategy has been adopted, wherein each TMD is placed where the mode shape amplitude of the building is the largest or large in the particular mode being controlled and tuned with the corresponding modal frequency. Newmark’s method is used to solve the governing equations of motion for the structure. The performance of the distributed MTMDs (d-MTMDs) is compared with single tuned mass damper (STMD) and all the MTMDs placed at top floor. The variations of top floor acceleration and displacement under wind loads are computed to study the effectiveness of the MTMDs in vibration control of the high-rise building. It is concluded that the d-MTMDs are more effective to control wind induced vibration than the STMD and the MTMDs placed at top floor.

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