胡少伟, 官福海, 游日. Analysis of Pulsating Wind Frequency Characteristics for Super Large-span Aqueduct[J]. 2013, 33(2): 195-200. DOI: 10.13409/j.cnki.jdpme.2013.02.009.
Analysis of Pulsating Wind Frequency Characteristics for Super Large-span Aqueduct
Longchang aqueduct in Guizhou Province is the largest arch span aqueduct in China.The pulsating wind frequency characteristics analysis plays an important guiding role in design.The first twenty natural frequencies of the Longchang aqueduct were calculated in water and anhydrous conditions
and the corresponding vibration modes were analyzed.The maximum designed wind velocity for once in 50 years of Longchang aqueduct
which is obtained by using extreme value Ⅰ-type probability distribution function
is 17.6 m/s.For the 3 strong breeze velocities during 1986-2010 and the maximum designed wind velocity for once in 50 years
pulsating wind power spectrum density at typical elevation of Longchang aqueduct was calculated.By comparing natural frequency and the frequency corresponding to the significant value of pulsating wind power spectrum density
it is shown that the resonance phenomenon of the Longchang aqueduct will not occur at above wind velocities.
Effects of aerodynamic interferences between heaving and torsional vibration of bridge decks: the case of Tacoma Narrows Bridge [J] . Masaru Matsumoto,Hiromichi Shirato,Tomomi Yagi,Rikuma Shijo,Akitoshi Eguchi,Hitoshi Tamaki. Journal of Wind Engineering & Industrial Aerodynamics . 2003 (12)