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Reynolds number effect on vortex resonance of streamline-like bridge deck section(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年02期
Page:
47-51
Research Field:
Publishing date:
2011-04-30

Info

Title:
Reynolds number effect on vortex resonance of streamline-like bridge deck section
Author(s):
CUI Xin1;  LI Jia-wu1;  CHEN Fei1; 2;  LIU Jian-xin1
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Zhejiang Zhexi Expressway Manage Co ltd, Hangzhou 310014, Zhejiang, China
Keywords:
bridge engineering;  Reynolds number effect;  vortex resonance;  fluctuating pressure
PACS:
U441
DOI:
-
Abstract:
In order to study the Reynolds number effect on vortex resonance of streamline-like bridge deck section, Reynolds number was changed by adjusting scale of model, and pressure taps were set on the surface of model. Amplitude and wind pressure time history of two models were recorded. Reynolds number effect on vibration frequency spectrum, moment coefficient time history and fluctuation pressure frequency spectrum were studied. Intrinsic reasons of Reynolds number effect on vortex was revealed. The investigation indicates that Reynolds number effect on pressure spectrum cause the Reynolds number effect on moment coefficient time history and cause Reynolds number effect on vibration frequency spectum, lead to Reynolds number effect on vortex resonance of streamline-like bridge deck section. 1 tab, 9 figs, 11 refs.

References:

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Last Update: 2011-04-30