ETABS ANALYSIS
is available in two levels: Plus (P) and Nonlinear (N). A letter in parenthesis following a feature identifies the version(s) that are associated with it.
• Static/Dynamic Analysis for Frame and Shear Wall Buildings (N, P)
• Response Spectrum Analysis with Eigen or Ritz Vectors (N, P)
• P-Delta Analysis (N, P)
• Automated Center of Rigidity Calculations (N, P)
• Rigid, Semi-Rigid, Multiple and Flexible Floor Diaphragms (N, P)
• Frame Objects Drawn as Members – Automatically Meshed (N, P)
• Automatic Meshing of Decks/Slabs for Diaphragm Analysis (N, P)
• Wall/Slab/Deck Modeled with Shell, Plate or Membrane Types (N, P)
• Applied Force and Ground Displacement Loading (N, P)
• Seismic Acceleration or Displacement Time History Analysis (N, P)
• Wind Load Forcing Functions (N, P)
• Explicit Panel-Zone Deformations (N, P)
• Effects of Beam-Column Partial Fixity (N, P)
• Construction Sequence Loading Analysis (N)
• Frame Hinges for Axial, Flexural, Shear & Torsional Behavior (N)
• Nonlinear Static Pushover Analysis (N)
• Viscous Dampers (N)
• Base Isolators (N)
• Gap Object for Structural Pounding (N)
• Nonlinear Time History Analysis with the Wilson FNA Method (N)
• Large Displacement Analysis (N)
• Sequential Construction Analysis (N)
SEQUENTIAL CONSTRUCTION (N)
• 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 (N)
• FEMA 273, ATC-40
• Force-Deformation Relations for Steel & 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
MODELING & DESIGNING STEEL BUILDING SYSTEMS
STEEL FRAME AND FLOOR MODELING FEATURES
• Integrated Object Based Steel Building Models
• Special Modeling of Steel Frames with Concrete or Composite Floor
• Rigid, Semi-Rigid, Partial, Multiple and Flexible Floor Diaphragms
• Cracked Properties and Lateral Drift Control
• Automatic Generation of Code Lateral Wind and Seismic Loads
• Automatic Transfer of Vertical Loads from Floor Decks to Framing
• Steel Frames Interacting with Complex 2D and 3D Shear Walls
• Steel Frames Interacting with Elevator Cores/Curved Shear Walls
• Steel Frames Interacting with Straight/Spiral Parking Garage Ramps
STEEL FRAME DESIGN FEATURES
• Fully Integrated Steel Frame Design
• Automatic Member Sizing – No Preliminary Design Required
• Virtual Work Based Optimization for Lateral Deflections
• Grouping of Members for Member Sizing
• AISC-ASD & LRFD, UBC, British, Canadian, Italian, Indian and Euro
Codes
• Design for Static and Dynamic Loads
• Code Dependent or User Defined Loading Combinations
• Automatic Calculations of Live Load Reduction Factors
• Automatic Calculation of K-Factors & P-Delta Effects
• Integrated Section Designer for Composite & Built-Up Sections
• Interactive Options for Design and Review
• Interfaced with SAFE for Detailed Floor Slab and Base Mat Design
• Design for Effects of Torsion
STEEL JOIST (SJI) DESIGN FEATURES
• Standard and Envelope Design Types (K & KCS Series Joists)
• Automatic Member Selection from Built-In or User-Defined Database
• Joist Capacities for Different Span Lengths
• User-Defined Joist Parameter (Depth, Weight & Moment of Inertia)
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