The default design load combinations have been enhanced for ACI 318-08, -11, -14 to include roof live load patterns.

Steel Frame Design - Russian SP 16.13330.2011 code added.

Steel Frame Design - Eurocode 3-2005 enhancement to perform a basic torsion design for I- and tubular sections.

Steel & Concrete Frame Design - Korean Building Code (KBC 2009) code added.

Concrete Frame Design - ACI 318-08, -11, -14 enhancement allows specifying Design System Rho (ρ) and Design System SDS factors in the concrete frame design preferences.

The handling of convergence tolerances for time-dependent behavior during staged-construction analysis has been improved to better enforce equilibrium after large load increments.

A new stability check has been added for nonlinear static load cases to report when the structure may have failed under material or geometric nonlinearities that are not obvious from the analysis results.

Auto-seismic loading according to the Dominican Republic (R-001) code added.

Auto-seismic loading according to Korean Building Code (KBC 2009) added.

Automated response spectrum functions according to the Costa Rica Seismic Code 2010, Ecuador (NEC-SE-DS 2015), Korean KBC 2009, Mexico (CFE-93 and CFE-2008), and Peru (NTE E.030 2014) codes added.

Ability to specify accidental eccentricity for response spectrum cases added.

Modify undeformed geometry feature enhanced to allow applying the modification to a selection of joints, as well as limiting direction of modification.

Semi-rigid option added for diaphragm constraint.

This model represents concrete compression, cracking, and shear behavior under both monotonic and cyclic loading, and accounts for crack rotation.

New 2-D modified Darwin-Pecknold concrete model has been added to the nonlinear layered shell.

64-bit version of the graphical user interface (GUI) now available.DirectX graphics mode has been enhanced to use DirectX 11 for enhanced speed and capabilities.Assign and select menu forms have been enhanced to allow them to remain open for repetitive use with a new apply button.SAP2000 follows in the same tradition featuring a very sophisticated, intuitive and versatile user interface powered by an unmatched analysis engine and design tools for engineers working on transportation, industrial, public works, sports, and other facilities. The SAP name has been synonymous with state-of-the-art analytical methods since its introduction over 30 years ago.

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