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[期刊论文]

Aeroelastic Experimental Investigation of Hyperbolic Paraboloid Membrane Structures in Normal and Typhoon Winds

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author:

Li, D. (Li, D..) [1] | Zhang, Z. (Zhang, Z..) [2] | Zhang, C. (Zhang, C..) [3] | Unfold

Indexed by:

Scopus

Abstract:

The lightweight and flexible membrane structure of roofs are susceptible to wind loads with the risk of damage and failure. Compared with uniform and low-level turbulence flow cases (i.e., normal winds) that have been well investigated, the wind-induced vibration problem of membrane structures in high-level turbulence flows such as typhoons has been paid little attention. To address the gap, this paper aimed at investigating the aerodynamic behavior of hyperbolic paraboloid membrane structures in normal and typhoon winds by a series of wind tunnel tests. Some distinct wind characteristics of upcoming normal and typhoon flows in terms of vertical profiles of wind velocity, turbulence intensity, and power spectrum density of fluctuating winds were well simulated in an automatically controlled wind tunnel. The aeroelastic behavior of a scaled model was analyzed and discussed in terms of displacement time-history responses, probability distribution characteristics, and dynamic characteristics including the natural frequency, mode shape, and damping ratio. Results show that the increasing suction in a typhoon leads to significant growth in maximum deformations and more risks to suffer from aeroelastic instability. Non-Gaussian characteristics appear more remarkable with skewness and kurtosis increasing almost two-fold in typhoons. Structural modal parameters are influenced by both turbulence intensity and wind velocity. This study provides basic insights into the deficiency of dynamic response of membrane structures in typhoons, and promotes the applications of membrane structures in green buildings. © 2022 by the authors.

Keyword:

hyperbolic paraboloid membrane structure normal winds typhoons wind tunnel

Community:

  • [ 1 ] [Li, D.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Li, D.]School of Advanced Manufacturing, Fuzhou University, Jinjiang362200, China
  • [ 3 ] [Zhang, Z.]School of Advanced Manufacturing, Fuzhou University, Jinjiang362200, China
  • [ 4 ] [Zhang, C.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 5 ] [Zhang, Z.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Yang, X.]College of Civil Engineering, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address:

  • [Yang, X.]College of Civil Engineering, China

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Source :

Sustainability (Switzerland)

ISSN: 2071-1050

Year: 2022

Issue: 19

Volume: 14

2 . 5 9 2

JCR@2018

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 8

30 Days PV: 2

Affiliated Colleges:

操作日志

管理员  2024-12-11 17:51:59  更新被引

管理员  2024-12-07 04:11:15  更新被引

管理员  2022-12-06 19:02:02  创建

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