Bridge Deck Flutter Velocity Calculator

Bridge Aeroelastics: Compute critical flutter onset wind speed ($V_{cr}$), frequency ratio ($\omega_T/\omega_B$), and mass moment of inertia using Selberg’s formula.

Bridge Deck Dynamic Parameters

Deck Width $B$ (m):

Deck Mass $m$ (kg/m):

Torsional Freq $f_T$ (Hz):

Vertical Bending Freq $f_B$ (Hz):

Radius of Gyration $r$ (m):

Aerodynamic Factor $\eta$:

Flutter Stability Thresholds

Critical Flutter Speed

-- m/s

Flutter Speed (km/h)

-- km/h

Frequency Ratio ($\omega_T/\omega_B$)

Safety Assessment

Aeroelastic Coefficients

• Mass Moment of Inertia ($I_m = m r^2$): -- $\text{kg}\cdot\text{m}^2/\text{m}$

• Reduced Mass Ratio ($\mu = m / (\pi \rho B^2)$): --

• Normalized Radius of Gyration ($r / B$): --

• Bending Coupling Separation Factor: --

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Bridge Deck Flutter Velocity Calculator

Bridge Deck Dynamic Parameters

Flutter Stability Thresholds

Aeroelastic Coefficients

Frequently Asked Questions