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Wind No.
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Number of wind profile |
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Integration
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- Fast: Approximation with constant Power Spectral Density in the whole frequency range
- Exact: Exact consideration of Modal Power Spectra Density in the frequency range
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Type of results
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Required type the calculated results (amplitudes of additional dynamic forces and deformations)
- RMS: Standard deviation (root mean square of deviation amplitudes)
- Peak: Maximum values of amplitudes occurring in the time period
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Calculation rule
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Selection of the required superposition rules for the amplitude values contributed by the individual natural modes (see also Earthquake Loading).
- ABS: Addition of absolute values
- SRSS: Quadratic (pythagorean) addition of individual contributions
- DSC: Partial quadratic combination with correlation factors (Newmark-Rosenblueth)
- CQC: Complete quadratic combination with correlation factors
- CQCX: CQC with considering the sign of the individual contributions Superposition in accordance with a variant of the CQC rule. With correlation factors depending on the specified damping ratio without consideration of the duration of the event. R = Sqrt (Sum of all Ri*Rj*rho_ij), rho_ij are the correlation factors. Negative values Ri*Rj*rho_ij may arise. However, due to the diagonal values of the correlation factors rho_ii being large compared to the off-diagonal terms, it is normally assured, that R can be calculated as a real value.
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Duration
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Duration of the wind loading [sec] |
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Description
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Descriptive text for the wind profile (max. 80 char.) |
