Tags :PERFORM-3D

Displacement Based Design Traditionally, earthquake-resistant design has been strength-based, using linear elastic analysis. Since inelastic behavior is usually allowed for strong earthquakes, this is not entirely rational. Strength-based design considers inelastic behavior only implicitly. Displacement-based (or deformation-based) design considers inelastic behavior explicitly, using nonlinear inelastic analysis. Displacement-based design recognizes that in a strong earthquake, inelastic deformation (or ductility) can be more important than strength. PERFORM-3D allows you to use displacement-based design. Implementation of ASCE 41 Procedures for displacement-based design using inelastic analysis are specified in ASCE 41, “Seismic Rehabilitation of Existing Buildings”. ASCE 41 applies to the retrofit of existing buildings, but the procedures can be applied to the design of new buildings. PERFORM-3D implements the procedures in ASCE 41....

MODELING• Import Model Geometry from ETABS and SAP2000• Easy-to-Use Graphical Interface• Beam, Column and Brace Members• Solid, Hollow and Flanged Parametric Shapes• Shear Links and Panel Zones• Complex Shear Walls and Floor Slabs• Dampers and Isolators• Plastic Hinges with PMM Interaction• P-Delta Effects NONLINEAR ANALYSIS• 3D Nonlinear Static Pushover• 3D Nonlinear Time-History Earthquake• Sequential Loading, e.g., Cyclic Pushover• Automated Analysis Strategies• Trilinear Force-Deformation Relationship• Optional Brittle Strength Loss and Stiffness Degradation• Combine Results for Multiple Earthquakes• Vary Member Strengths without Changing the Model• Efficient Solver for Large Structures DISPLAY• Demand/Capacity (Usage) Plots• Pushover Diagrams• Time-History Records of Displacements, Drifts and Forces• Moment and Shear Diagrams• Force Displays for Member Groups• Animated Deflected Shapes• Animated Mode Shapes• Hysteresis Loop Plots• Mean...

PERFORM 3D is a highly focused nonlinear software tool for earthquake resistant design. Complex structures, including those with intricate shear wall layouts, can be analyzed nonlinearly using a wide variety of deformation-based and strength-based limit states. Model data can be imported directly from ETABS and SAP2000. A wide variety of element types are supported, including beams (with panel zones), columns, braces, shear walls (with openings), floor slabs, dampers, and isolators. Nonlinear analyses can be static and/or dynamic, and can be run on the same model. Loads can be applied in any sequence, such as a dynamic earthquake load followed by a static pushover. PERFORM 3D provides powerful performance based design capabilities, and can calculate demand/capacity (usage) ratios for all components...