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Response Spectrum Analysis
- Response-spectrum analysis is a statistical type of analysis for the determination of the likely response of a structure to seismic loading.
- Response-spectrum analysis seeks the likely maximum response to these equations rather than the full time history.
- The earthquake ground acceleration in each direction is given as a digitized response-spectrum curve of pseudo- spectral acceleration response versus period of the structure.
Time History Analysis
- Modal frequency analysis using Ritz or Eigen vectors
- Linear Time History Analysis
- Nonlinear Time History Analysis with the Wilson FNA Method
P-Delta Analysis
- P-Delta analysis option accounts for the effect of large compressive or tensile loads upon the transverse stiffness of members in the structure
- Specify as combination of static load cases
- Automated mass calculation applied at each level
Sequential Construction
- Model Effects of Construction or Demolition
- Specify Active Structure by Stories or Groups
- Geometric Nonlinear P-Delta and Large Displacements
- Sequential Construction Load Cases for Design
- User Defined Loading
Pushover Analysis
- FEMA 273, ATC-40
- Force-Deformation relations for steel and concrete hinges
- Modal, uniform, or user defined lateral load patterns
- Capacity spectrum conversions
- Effective damping calculation
- Demand spectrum comparisons
- Performance point calculation
- Summary reports including plastic hinge deformations
