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Applied Sciences
Special Issues
Wind Resistance of Long-Span Bridges and High-Rise Buildings
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Wind Resistance of Long-Span Bridges and High-Rise Buildings

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 1794

Special Issue Editors

Prof. Dr. Mingshui Li

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Guest Editor
Research Centre for Wind Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: bridge aerodynamics; wind engineering; fluid mechanics; turbulence; wind tunnel testing
Prof. Dr. Xuanyi Zhou

E-Mail Website
Guest Editor
Department of Bridge Engineering,Tongji University, Shanghai 200092, China
Interests: wind engineering; snow engineering; wind tunnel testing
Dr. Shaopeng Li

E-Mail Website
Guest Editor
School of Civil Engineering, Chongqing University, Chongqing 400045, China
Interests: bridge aerodynamics; bluff-body aerodynamics; turbulence; wind tunnel testing

Special Issue Information

Dear Colleagues,

Over the past few decades, extreme events—for example, synoptic and non-synoptic strong winds—have been responsible for a large amount of severe structural damage and economic loss in many parts of the world. The structures become more susceptible to the action of strong winds with an increase in the span or height of those flexible structures, such as long-span bridges and high-rise buildings. Therefore, it requires a refined wind-resistant design to ensure the safety of flexible structures. To improve the wind-resistant design, we need to clarify the effect of strong winds on the structures, including the flow–structure interaction, wind loading, wind-induced vibration, and efficient control strategy. This Special Issue aims to collect submissions on the recent numerical and experimental advances in the wind-resistant design of bridges and building structures.

Prof. Dr. Mingshui Li
Prof. Dr. Xuanyi Zhou
Dr. Shaopeng Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bridge aerodynamics
  • structure aerodynamics
  • wind-resistant design
  • wind tunnel testing
  • CFD modeling
  • nonstationary winds
  • vibration control

Published Papers (2 papers)

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Research

18 pages, 5226 KiB  
Article
Spectral Characteristics of Fluctuating Aerodynamic Forces Acting on Rectangular Prisms
by Jiadong Zeng, Zhitian Zhang, Mingshui Li and Shaopeng Li
Appl. Sci. 2023, 13(21), 11975; https://doi.org/10.3390/app132111975 - 02 Nov 2023
Viewed by 603
Abstract
The present work is devoted to the role of boundary layer turbulence on the spectral characteristics of fluctuating wind loads on large aspect-ratio rectangular prisms. Seven rectangular rigid models with different side ratios (1/4~4) were created, and simultaneous pressure experiments were conducted under [...] Read more.
The present work is devoted to the role of boundary layer turbulence on the spectral characteristics of fluctuating wind loads on large aspect-ratio rectangular prisms. Seven rectangular rigid models with different side ratios (1/4~4) were created, and simultaneous pressure experiments were conducted under the boundary layer turbulence flows. Using the measured data, the power spectrums of the fluctuating aerodynamic forces were calculated, and then, the spectral characteristics under different turbulent boundary layer flows were analyzed. In contrast to the typical power spectrum model, the main factors affecting the spectral characteristics of the fluctuating aerodynamic loads are presented and discussed in this study. The power spectrum of the rectangular prism was significantly impacted by the turbulent wind field, primarily because higher turbulence intensity levels result in a lower spectral peak and a wider spectral bandwidth, which also redistributes spectral energy. In particular, the effect on the spectral properties of across-wind fluctuating loads was stronger, and the turbulent disturbance modified the lateral separation flow structure, causing the reattachment phenomenon to occur earlier on rectangular prisms with small side ratios, which effectively altered the spectral properties. Thus, a normalized across-wind fluctuating wind load spectrum model is proposed, taking into account the effects of incoming turbulence, the side ratio, vortex shedding, separation reattachment flow-induced spectral bandwidth changes, and high-frequency fluctuations. Full article
(This article belongs to the Special Issue Wind Resistance of Long-Span Bridges and High-Rise Buildings)
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19 pages, 5503 KiB  
Article
Study of Nonlinear Aerodynamic Self-Excited Force in Flutter Bifurcation and Limit Cycle Oscillation of Long-Span Suspension Bridge
by Jieshan Liu, Fan Wang and Yang Yang
Appl. Sci. 2023, 13(18), 10272; https://doi.org/10.3390/app131810272 - 13 Sep 2023
Cited by 1 | Viewed by 732
Abstract
This article establishes a nonlinear flutter system for a long-span suspension bridge, aiming to analyze its supercritical flutter response under the influence of nonlinear aerodynamic self-excited force. By fitting the experimental discrete values of flutter derivatives using the least squares method, a polynomial [...] Read more.
This article establishes a nonlinear flutter system for a long-span suspension bridge, aiming to analyze its supercritical flutter response under the influence of nonlinear aerodynamic self-excited force. By fitting the experimental discrete values of flutter derivatives using the least squares method, a polynomial function of flutter derivatives with respect to reduced wind speed is obtained. Flutter critical value is determined by the linear matrix eigenvalues of a state-space equation. The occurrence of a supercritical Hopf bifurcation in the nonlinear system is determined by the Jacobian matrix eigenvalues of the state-space equation and the system’s vibrational response at the critical state. The vibrational response of the supercritical state is obtained through Runge–Kutta integration, revealing the presence of stable limit cycle oscillation (LCO) and unstable limit cycle oscillation in the system, and through analyzing the relationship between the LCO amplitude and wind speed. Considering cubic nonlinear damping and stiffness, the effects of different factors on the nonlinear flutter system are analyzed. Full article
(This article belongs to the Special Issue Wind Resistance of Long-Span Bridges and High-Rise Buildings)
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