ETABS Releases


Release Date: 23 Dec 2020

ETABS 19.0.1|19.0.2 Enhancements


  • Stiffness solution has been parallelized to further speed-up nonlinear static and direct-integration time-history load cases.
  • Tabular output for element nonlinear energy and base reactions is now much faster for load cases with many output steps.


NBCC 2015 wind load now supports the dynamic procedure for Open and Rough Terrain using the exposure factor Ce. Wind-load calculations are now available in the project report.

Release Date: 28 Oct 2020

ETABS 19.0.0 Enhancements

Structural Model

The special requirements applied to the steel beam-column connections using the proprietary SidePlate® Systems have been updated to the latest version.

The Korean common rebar set is now available when defining reinforcing bar sizes.


Auto lateral loading has been added per the Korean KDS 41 17 00:2019 code, including seismic load and response-spectrum functions.

Auto lateral loading has been added per the NTC 2018 code, including wind load, seismic load, and response-spectrum functions.

Performance-Based Design

  • The event-to-event analysis method has been improved for better handling of equilibrium unbalances. Additional controls are available for this non-iterative method.
  • The speed of solution using the multi-threaded solver has been substantially increased for direct-integration time-history and other multi-step load cases.

The recovery of plotted and tabular results from nonlinear static and direct-integration load cases is now significantly faster. Results include deformed shape, force and stress values, and hinge states.

The parametric PMM hinge has been enhanced to provide better convergence behavior in sensitive systems.


Short-term and long-term cracked-deflections can now be calculated for concrete floors. The rebar used for the cracking calculation is based on either provided rebar, designed rebar, or a quick rebar overwrite.

Steel Frame Design

Numerous enhancements have been implemented for Russian SP 16.13330.2017 steel frame design.

Concrete Frame Design

  • Concrete frame design has been added per the ACI 318-19 code.
  • Composite column design has been added per the AISC 360-16 code.

Shear Wall Design

Shear wall design has been added per the ACI 318-19 code.

Slab Design - Reinforced Concrete and PT

Slab design has been added for reinforced-concrete and prestressed (PT) slabs per the following codes:

  1. ACI 318-19
  2. AS 3600-2018


DirectX 2D is now used for plan and elevation views, providing faster and clearer rendering, improved line quality, and True Type fonts.

Database Tables

The automatic tabular output after analysis can now be directed to multiple files. Each file can produce a different set of tables and can apply to a different group.

External Import/Export

  • Perform®3D model files can now be imported into ETABS. Most elements, cross-section properties, mass, loads, and load cases will be imported and translated. Certain types of nonlinear components will also be transferred, and a report will be produced of what was translated.
  • Perform®3D model files can now be exported from ETABS. Most structural objects, properties, loads, and load cases will be exported and translated. The ETABS model to be exported must meet modeling requirements of Perform®3D. A report will be produced of what was translated.

Application Programming Interface (API)

The API can now start and control instances of ETABS on remote computers, including the retrieval of results. This enables distributed processing for running large suites of Performance-based Design histories, extensive parameter studies, and Monte Carlo simulations.

Cloud Licensing

Cloud-based licensing is now standard for ETABS.

  1. Cloud-based server requires no setup
  2. Access licenses outside of company networks and VPNs
  3. Share licenses between users (non-simultaneous)
  4. Check-out a license to work offline
Cloud FAQ
Release Date: 11 Feb 2020

ETABS 18.1.1 Enhancements

Structural Model

Panel-zone definitions now include nonlinear behavior that is automatically generated based on ASCE 41-17 criteria or specified as user-defined properties. The nonlinear behavior for panel zones allows the specification of a symmetrical multi-linear backbone curve with several available options for hysteretic behavior. Panel-zone acceptance criteria definitions have been expanded to allow the major and minor directions to be separately specified, and these can be automatically generated based on ASCE 41-17.


ETABS has been enhanced for compatibility with CSiXCAD™, a new plug-in from Computers and Structures, Inc., for the detailing and documenting of steel and concrete structures within AutoCAD® or BricsCAD®. Working with building models that were analyzed and designed in ETABS, CSiXCAD can automatically create plans, elevations, schedules, and 3-D BIM models. Drawings can be updated to reflect changes to the ETABS model and design results, while retaining drafting changes made to the drawings themselves. 

Learn More
Release Date: 11 Dec 2019

ETABS 18.1.0 Enhancements

Performance-Based Design – Acceptance Criteria

Acceptance criteria can be assigned to Link and Panel Zone properties for use in performance checks.
Acceptance criteria can be assigned to piers and spandrels that can measure forces, stresses, or stresses as a ratio of the square-root of the concrete compressive strength f'c.

Performance-Based Design – Results Display

The Performance Check feature now provides greater control over the calculation of the demand-capacity ratio (D/C ratio) for the whole model, as well as for each object individually. A performance check can now include acceptance criteria from links, strain gauges, pier and spandrel forces, and panel zones, along with frame and wall hinges which were previously available. Multiple demand sets can be specified as well as multiple combination methods, allowing more control over the performance-check results.
The output tables have been enhanced to tabulate the demand-capacity ratio (D/C ratio) for the whole model, as well as for each object individually.
Graphical display of performance check results (Display > Performance Check) has been enhanced to include acceptance criteria from links, strain gauges, pier and spandrel forces, and panel zones, along with frame and wall hinges which were previously available.
A new plot function "Acceptance Criteria D/C Ratio" has been added. This plot function can be used to display the demand-capacity ratio (D/C ratio) for a specified group and specified performance level for all steps of a multi-stepped load case (e.g. time-history).
A new menu item (Display > Performance Check Usage Ratio Diagram) which shows the demand-capacity ratio (D/C ratio) for all demand sets in a performance check and for a specified performance objective. This display is a visualization tool to show the relative contribution of each demand set and/or object type in a performance check.


Analysis can now run multiple load cases in parallel. This is particularly efficient for considering large suites of earthquakes in Performance-Based Design.
Analysis errors, warnings, and informational messages are now stored and shown after the analysis completes, as well as accessible via database tables

Steel Frame Design

Russian steel frame design code to SP16.13330.2017 from the previous SP16.13330.2011 version, including many new enhancements in the interaction equations, reporting, and user control parameters.

Concrete Frame Design

Concrete frame design per Russian code SP 63.13330.2012 has been enhanced for seismic design, including new parameters for user control.

Structural Modeling

A new material library for the Korean region has been added. The library contains steel, concrete, and rebar materials per the KBC 2016 standard.

Results Display and Output

Nonlinear energy component output is now available per group for nonlinear load cases

Database Tables

An enhancement was made to add new capability to perform filters and sorts in displayed database tables by right-clicking in the table column headers.
Release Date: 03 Sep 2019

ETABS 18.0.0|18.0.1|18.0.2 Enhancements

New Database Tables

Tables have been expanded to completely define the model and results.

  • Most model-definition tables can be edited interactively.
  • Tables can be exported in Excel, Access, Text, or XML formats.
  • Exported tables can be edited and re-imported to define a new model or add to an existing model.

Concrete Frame Design

  • Added Australian code AS 3600-2018.

  • Added Korean code KBC 2016, including seismic design requirements.

  • Added Mexican Building code (Mexico RCDF 2017).

  • The New Zealand code NZS 3101-06 now incorporates torsion design of beams.

  • Design by Russian code SP 63.13330.2012 has been significantly expanded and enhanced, including the addition of crack-width analysis for concrete beams.

  • Added Turkish code TS 500-2000(R2018), including seismic design requirements.

Shear Wall Design

  • Added Australian code AS 3600-2018.

  • Added Korean code KBC 2016, including seismic design requirements.

  • Added Mexican Building code (Mexico RCDF 2017).

  • Added Russian code SP 63.13330.2012.

  • Added Turkish code TS 500-2000(R2018), including seismic design requirements.

  • The tracing of wall legs in 3D walls has been enhanced for handling intermediate cross walls.

Slab Design

Added Russian code SP 63.13330.2012.

Steel Frame Design

  • Added Korean code KBC 2016, including seismic design requirements.

  • Design by Russian code SP 16.13330.2011 has been significantly expanded and enhanced.

Composite Beam Design

  • The AISC 360-16 code now has the option to consider axial forces in composite beams.

  • The AISC 360-16 code can now design castellated sections and cellular sections following the Provisions of AISC Design Guide 31.

  • Design by the Eurocode 4-2004 has been expanded and enhanced.


Enhanced control is now available for the stiffness and damping of nonlinear link objects, including isolators, improving control of energy-dissipation behavior.

  • Event-stepping and line search can now be combined for nonlinear static analysis.
  • Convergence behavior of the friction-pendulum isolator is improved for the case with significant variation in axial force, including uplift.

Performance-Based Design

Line and quadrilateral strain gauges can be defined, along with acceptance criteria, for measuring deformation, shear, and rotation (Ultimate level).

Enhanced Output

Results are now available on a step-by-step basis for load combinations of multi-step load cases, including plotted and tabulated results.

Absolute and relative displacements, velocities, and accelerations are now available for generalized displacements.


  • Faster frame and wall design for all design codes and materials when considering many load combinations that contain multi-stepped load cases, such as time history.

  • Faster creation of the analysis model when previously meshed shell objects do not need to be re-meshed.

  • Faster display of results from modal time-history load cases, including FNA, for large models with many modes.

  • Reduced size of results stored for direct-integration time-history load cases.

  • Faster recovery of analysis results for the Application Programming Interface (API).

Application Programming Interface (API)

  • Starting with ETABS v18, the API will be compatible with future major versions of ETABS until the API itself requires a breaking change.
  • A new cross-product API is available that will work with CSI products ETABS, SAP2000, and CSiBridge.
  • The new database tables can be accessed for display in multiple formats.
  • The new model database tables can be edited in multiple formats, behaving similarly to interactive editing of the database tables.
Release Date: 30 Jul 2018

ETABS 17.0.1 Enhancements

Chinese Steel Frame Design

Chinese steel frame design now supports the 2018 requirements for GB50017-2017,  GB50011-2010 and JGJ99-2015.

Release Date: 03 Jun 2018

ETABS 17.0.0 Enhancements


General quadrilateral meshing of floor areas

User-defined internal mesh for shells

Improved merging of floor areas by removing common edges

Ability to automatically add rigid-zone areas over columns and walls


Improved DirectX Display

Analysis Modeling

New link property to represent high-damping rubber-bearing isolator

Multiple controlled displacements for static pushover analysis

Link properties can be used for line and area springs

Strain response for shell objects (walls and floors)

Option to control the slope of steep strength-drop in frame hinges

Improved convergence behavior for displacement-controlled nonlinear static load cases

Non-iterative event-to-event option for nonlinear static analysis

Increased speed and reduced storage for running and displaying results of nonlinear load cases

Performance Based Seismic Design

ASCE 41-17 auto hinges

Optional points BC and CD on hinge backbone curves

Loading Codes

  • Auto-wind loading according to the ASCE 7-16 code and Korean Building Code (KBC 2016) added.

  • Auto-seismic loading according to the ASCE 7-16 code, Korean Building Code (KBC 2016), Indian Standard Code (IS 1893:2016) and Turkish Seismic Code (TSC-2018) added.

  • Automated response spectrum functions according to the ASCE 7-16, Korean Building Code (KBC 2016), Indian Standard (IS 1893:2016) and Turkish Seismic Code (TSC-2018) added.

International Design Codes

  • AISC 360-16 composite beam design added.

  • AISC 360-16 steel frame design added.

  • NTC 2018 Steel Frame Design added.

  • IS 456:2000 concrete frame design updated for the IS 13920:2016 seismic code.


Parallel processing has been implemented for running design (all types)

Automatic concrete column design to achieve strong-column/weak-beam connections

Implementation of AISC Design Guide (DG) 11 for composite beam design based on AISC 360, CSA S16 and Eurocode

Web penetrations for composite beam design based on AISC 360-16, AISC 36-10 and AISC 360-05 codes

Release Date: 17 Jan 2018

ETABS 2016 16.2.0|16.2.1 Enhancements


Added codes for creep, shrinkage, and stiffness aging: Eurocode 2-2004, Australian Standard 3600-2009, New Zealand Standard 3101-2006 and GL 2000 models.


Creep & Shrinkage

Creep and shrinkage behavior now includes the effect of rebar to reduce axial shortening of columns and walls.

Modal Damping

Modal damping option for linear and nonlinear direct-integration time-history analysis, providing more realistic and conservative results.

Results Display & Output

Slab cracked-width display based on Eurocode 2-2004.

Release Date: 07 Apr 2017

ETABS 2016 16.1.0 Enhancements


Automated seismic load and response spectrum functions added for Vietnamese Standard TCVN 9386:2012 code.

Auto Wind load added for Vietnamese Standard TCVN 2737:1995 code.

Auto wind load added for Indian code based on IS:875 (Part 3) 2015 for Wind Loads.

Output & Display

Response Spectra for Defined Acceleration Time-History Functions

View response spectra for defined acceleration time-history functions. Response spectra can be requested either for a single time history function or a set of them. When viewing response spectra for a set of functions an option is available to view the envelope or the mean plus a multiple of the standard deviation.


Library of concrete and rebar material properties for Vietnam incorporated.

DirectX Graphics

Enhanced Speed and Appearance

“Walk” mode navigation

3D Printing

Cut-away plane

Release Date: 27 Jan 2017

ETABS 2016 16.0.3 Enhancements

Slab Design

Concrete Slab Design

Concrete slab design has been added for the Russian code SP 63.13330.2012.

Release Date: 22 Nov 2016

ETABS 16.0.1|16.0.2 Enhancements

Performance Based Design

Analysis Results

Size of analysis results files reduced for multi-step nonlinear static and nonlinear direct-integration time-history load cases, typically affecting performance-based design models.

Chinese Seismic Performance-Based Design

Seismic performance-based design added to Chinese version based on Chinese code JGJ3-2010

Release Date: 24 Aug 2016

ETABS 2016 Enhancements

Slab Design

ETABS 2016 now gives users the ability to perform slab design with post-tensioning.

Integrated Strip Moment and Shear Diagrams

Integrated moment, shear, and torsion for design strips displayed onscreen and reported in tables.

Modeling of PT Tendons

Model PT tendons and allow consideration of post-tensioning in the design of concrete slabs within ETABS.

Slab Design Based on Strips

Model slab design strips that can be used for concrete slab design, within ETABS. American, European, British, Canadian, along with several additional international codes are available.

Punching Shear Check

Punching-shear design checks in concrete slabs at columns and load locations specified by the user. Overwrites for punching perimeters can be added as well as specifiying openings which affect the perimeter but are not explicity modeled.

Design Reports for PT Stresses

Design Reports for Flexural and Shear


Add Insertion Point Assignments to Slab or Wall Elements

Apply thickness overwrites on a joint-by-joint basis, allowing slabs and walls to have nonuniform thicknesses. Joint offsets can also be applied.

Interface added to define soil profile data for Soil Structure Interaction of Footings

Generate spring and dashpot properties under footings to model soil-structure interaction.

Parametric PMM Hinges for Frame Elements


Automated Wind and Seismic Loads added for NBCC 2015

Wind loads include torsional moment.

Automated Response-Spectrum Functon added for NBCC 2015 and Russian Code


Event-to-Event Strategy

Pure event-to-event stepping solution implemented as an option for nonlinear direct-integration time-history load cases.

Automated Floor Vibration Analysis for Heel Drop Effects for Long Spans

Define vibration analysis paths on floor slabs, along with parameters defining demand and capacity. Automated time-history analysis is performed for each case.

Energy Plots for Direct Integration Time History Analysis for Performance-based Design

Step-by-step energy plots and tabular results available for nonlinear direct-integration time-history load cases and for nonlinear static/staged-construction load cases.


Russian Concrete and Steel Frame Design Codes Added

Output and Display

Story Plots

Animated plot shows story accelerations, drifts, shears and overturning moments together on the same plot for time history and nonlinear static load cases.

Release Date: 25 Nov 2015

ETABS 2015 15.2.0 | 15.2.2 Enhancements

International Design Codes

  • Shear-Wall Design Report- Eurocode 2-2004 enhancement to report wall unbraced height used for computing pier buckling load capacity.
  • Design Detail Report

  • Material Library - Russian material library updated.
  • Slab/Beam Design - CSA S16-09 and CSA S16-14 enhancement limiting the total effective width of the slab to 1/4 the span of the beam and taking in account the amount of deflection caused by shrinkage of the concrete.
  • Design Preferences

Output and Display

  • Database tables reporting story and diaphragm maximum and average drifts.
  • Drifts now reported at brace locations.
  • Database Table for Diaphragm Max/Avg Drifts

External Import/Export

  • Export of AutoCAD .dwg files for AutoCAD versions 2015 and 2016 now available.
  • ETABS model exported to AutoCAD

Enhanced Application Programming Interface (API)

  • Plugins written to access API (Application Programming Interface) now accessible within ETABS.
  • Plugin Window

Chinese Version

  • Tailored summary report now provided for the Chinese version of the program.
  • Results of three methods in "Frame Overturning Moments in Dual System" now included in database table for the Chinese version of the program.
Release Date: 28 Jul 2015

ETABS 15.1.0 Enhancements


  • A new 2-D modified Darwin-Pecknold concrete model has been added to the nonlinear layered shell. This model represents concrete compression, cracking, and shear behavior under both monotonic and cyclic loading, and accounts for crack rotation.

Nonlinear layered shell results

Layered shell definitions

  • Time-dependent creep, shrinkage, and stiffness behavior has been added for the CEB FIP-2010 and ACI 209R-92 codes and for user-defined curves.

Creep and shrinkage deflection over time

  • Notional size for time-dependent creep and shrinkage behavior is now specified on the section properties rather than at the material level, and can be automatically computed or user-defined.

Section notional size definition


  • Automated seismic lateral loading has been implemented for the Dominican Republic R-001 code.

Dominican Republic seismic loading definition

  • Automated response-spectrum functions have been implemented for the following codes: Costa Rica Seismic code 2010, Ecuador (NEC-SE-DS 2015), Mexico (CFE-93 and CFE-2008), and Peru (NTE E.030 2014).

Ecuador response spectrum definition


  • 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.
  • The speed of nonlinear static and nonlinear direct integration time-history analysis has been increased for models containing many linear shell elements.


  • Several enhancements have been implemented for composite beam design to increase productivity and to improve reporting.

Interactive composite beam design

Release Date: 23 Feb 2015

ETABS 2015 Enhancements

Introducing Automation of Performance-Based Design

Performance-Based Design (PBD) is a major shift from traditional structural design concepts and represents the future of earthquake engineering. These new procedures help assure that the design will reliably meet a desired level of performance during a given earthquake.

The fundamental component of PBD is nonlinear dynamic analysis where an attempt is made to capture the real behavior of the structure by explicitly modeling and evaluating post-yield ductility and energy dissipation when subjected to earthquake ground motions. ETABS 2015 introduces new special purpose options and algorithms for the practical and efficient application of these procedures.

  • Automated PBD hinges and procedures based upon ASCE 41-13
  • Steel and concrete fiber models for shear walls and columns
  • Stable and Fast Nonlinear Analysis (FNA) implemented for PBD
  • Automated Nonlinear hinges in shear walls based upon user/design reinforcing

Shearwall Fiber Hinge

Wall Reinforcement Definition

  • Steel and concrete material models with performance levels (confined and unconfined)
  • Material strain as performance measure for D/C ratios
  • Generalized displacement constraints for strain evaluation

Unconfined and Confined Concrete (compared)

Confined Concrete


  • Several new hysteresis options for nonlinear hinges
  • Options for hysteretic stiffness and strength degradation

Hysteresis Loop Models

  • Output averaging of responses over several time history runs

Response Averaging

  • Quasi-static (Dyanmic) option for Static Pushover analysis of complex models
  • D/C ratio plots and tables for fast performance evaluation

Demand/Capacity Ratios

PBD Results

  • Automated Bucking Restrained Brace (BRB) modeling (Star Seismic)
  • Friction-spring hysteretic damper and Bilinear Maxwell oil damper property

New Graphical User Interface

  • Fast DirectX graphics with full display, drafting and selection capability.
  • Customization of toolbar and shortcut keys.

New Advanced Modeling Options

  • Spectral matching of time history functions
  • Generation of artificial earthquakes using spectral matching
  • Multiple mass sources for nonlinear analysis
  • Modification of geometry by mode shapes for imperfection analysis

Artificial Earthquake Generation

Frequency Content Matching

Mulitple Mass Sources

New International Frame Design Codes

  • Composite Beam Design - Enhanced User’s Interface
  • Composite Frame Design - Canadian CSA S16-14
  • Concrete Frame Design - ACI 318-14, CSA A23.3-14, and KBC 2009
  • Steel Frame Design - CSA S16-14, and KBC 2009

Composite Beam Design

Composite Beam Design Checks

New International Shear Wall Design Codes

  • Design Codes: ACI 318-14, CSA A23.3-14, and KBC 2009

New International Loading Specifications

  • Automated response-spectrum functions for Argentina, Chile, Colombia, Dominican Republic, Ecuador, Guatemala, Mexico, Peru, and Venezuela

Enhanced Application Programming Interface (API)

  • Additional API support for design data and results
Release Date: 22 Dec 2014

ETABS 2013 13.2.0, 13.2.1, and 13.2.2 Enhancements

Significant enhancements included in ETABS 2013 v13.2.0, v13.2.1, and v13.2.2:

  • The Auto-Relabel All option that was available in ETABS v9 has been restored.
  • Russian material property and section property libraries have been added.
  • ASCE 41-13 guidelines for performance-based design have been implemented for frame hinge definitions, performance-point calculations, and the behavior and acceptance criteria for panel-zones and BRBs (buckling-restrained braces).
  • Masonry is now defined as a separate material rather than a type of concrete material.
  • Multiple named mass-source definitions can now be created and used for different load cases.
  • The Singapore National Annex has been added as an option to the Eurocode 8-2004 response spectrum function.
  • Notional load patterns can now be based on snow loads as well as other gravity loads.
  • User control is now provided for the handling of self-weight in the end offset portions of beam members.
  • The speed of analysis has been increased for most load cases.
  • The iteration strategy for nonlinear static and nonlinear direct-integration time-history load cases has been made more adaptive to typically improve convergence behavior and to reduce the time of analysis.
  • The line-search algorithm is now available for nonlinear static analysis.
  • Steel frame design for the Indian IS 800:2007 code now implements the changes in Amendment Number 1.
  • The display of design input parameters for steel frame design overwrites has been enhanced.
  • Canadian design codes (i.e., CSA A23.3-04 and CSA S16-09) now include snow loads in the default design combinations.
  • Multiple enhancements have been made for composite beam design affecting the control of the design process, the look and functionality of the interactive design form, the format and content of the output, and other improvements.
  • Shear wall design per the Indian IS 456:2000 code now allows separate control in the major and minor directions for enforcing the minimum eccentricity due to slenderness.
  • Several database tables have been added or have had their content expanded, including the listing of object unique names where applicable. 
  • Table set definitions are now saved in the text model file. 
Release Date: 13 Jun 2014

ETABS 2013 13.1.5 Enhancements

Significant enhancements include:

  • The iteration algorithm for nonlinear direct-integration time-history analysis has been enhanced to improve the rate of convergence and to reduce the time of analysis for certain models.
Release Date: 17 Apr 2014

ETABS 2013 13.1.4 Enhancements

Significant enhancements include:

  • The Chinese frame-section databases have been updated with new sections
  • The import from DXF or DWG files has been enhanced so that imported architectural objects are now kept as part of the ETABS model.
  • The import of Revit Structure models from CSiXRevit has been enhanced to handle multi-story sloped columns and vertical planar walls with openings on their edges.
  • The import of 3D DXF or DWG files has been enhanced to automatically generate story levels in ETABS and to divide multi-story walls at story levels.
  • Other minor enhancements
Release Date: 10 Oct 2013

ETABS 2013 13.1.2 and 13.1.3 Enhancements

ETABS 2013 13.1.2 and 13.1.3 Enhancements 

Significant enhancements include:

  • Concrete frame design and shear wall design using the AS 3600-09/NZS 3101-06 codes have been updated for Amendment No. 3 in 2011 affecting the seismic load combinations.
  • Multiple enhancements have been made to shear wall design using the Eurocode 2-2004 code for the uniform-reinforcing and section-designer section options.
  • The output table Modal Direction Factors, primarily used for Chinese design, has been enhanced to include the contribution of all mass in the structure, not just the mass in rigid diaphragm constraints.
  • Database tables can now be exported to an XML file that can be opened by Microsoft Access, allowing the export to Access on machines that do not have it installed.
  • The loads from staged-construction load cases can now be exported to SAFE.
  • Multiple enhancements have been made to the import of .DXF files for floor plans, 3D models, and grid systems.
  • Multiple enhancements have been made to the import and export of IFC 4 files.
  • Multiple enhancements have been made to the import of SDNF files.
  • Multiple enhancements have been made to the import of CIS/2 files.
  • Many additional Open API functions have been implemented.
Release Date: 10 Jun 2013

ETABS 2013 13.1.0 and 13.1.1 Enhancements

Significant enhancements included:

  • Concrete frame design and shear wall design have been added for the Hong Kong CP 2013 code.
  • Steel frame design using the AISC 360-10 code now provides an option to allow Notional Load cases to be included in design combinations with wind, seismic and response spectrum cases.
  • Automated wind loading has been added according to the Australian and New Zealand code AS/NZS 1170.2-2011.
  • Automated wind loading using the diaphragm-extents option for the ASCE 7-02, ASCE 7- 05 and ASCE 7-10 codes that now allows automatic determination of the wind pressure coefficients (windward and leeward) based on the building size.
  • Frame section properties have been enhanced to separate steel shapes from concrete shapes for more detailed handling of rebar.
  • The mass source now allows separate control for the self-mass from elements and added masses, in addition to the use of load patterns. Previously self-mass and added mass were considered together.
  • New database tables have been added that provide pier and spandrel section property information.
  • Customization of the keyboard shortcuts for the various menu items is now available.
  • Multiple enhancements have been made for the import and export of IFC files.
  • Other minor enhancements.
Release Date: 22 Apr 2013

ETABS 2013 Enhancements

ETABS 2013 is the most sophisticated and technologically-advanced software product available to structural engineers today. It defines the future of building design software, setting the stage for unsurpassed capability and efficiency worldwide.

Built on a foundation of more than 40 years of research and innovation, ETABS 2013 sets the gold standard, yet again. Featuring versatile modeling technology, stunning graphics, efficient numerical methods and powerful optimization algorithms for design, ETABS 2013 offers unmatched levels of integration and productivity. It addresses numerous international building codes while producing complete design reports and schematic construction drawings to meet the demanding needs of the modern structural engineering professional.

ETABS 2013 New User Inteface


  • Model Explorer for easy access to all program capabilities
  • Non-modal forms for easy access to select, edit, assign and display
  • Create models by converting AutoCAD Architectural plan to 3D ETABS objects
  • Create models by tracing over AutoCAD plans
  • Ability to add 2D/3D models from templates
  • Live preview of changes while editing or drafting
  • Explicit modeling of curved beams, curved floor edges and curved walls
  • Tracing of building perimeter for quick draw of floor plates
  • Zoom and rotation during model creation
  • Create shearwall and elevator cores parametrically
  • Enhanced editing and selection capabilities
  • Intelligent snaps for easy model creation
  • Introducing multi-tower concepts with tower dependent stories and grids
  • Linear and Nonlinear support properties for point, line and area objects
  • Area load set definitions for load assignments
  • All input/output in user defined mixed units


  • 64 bit Advanced SAPFire Analysis Engine for increased problem size & solution
  • New advanced Sparse Solver
  • New multi-threaded solver for multi-CPU, multi-core systems
  • Analysis recognizes and uses 64 bit processing for enhanced performance
  • Model AliveTM feature for instantly seeing the effects of model revision
  • Enhanced meshing capability with more user control
  • Range combination for enveloping pattern loads
  • Construction sequencing allowing changes of members, loads and sections
  • Time dependent concrete age effects, creep and shrinkage
  • Geometric modification – shape finding for specified final geometry
  • Nonlinear layered shell element for shearwall performance based design
  • Nonlinear element to model Triple Pendulum base isolators
  • Nonlinear element for multi-linear plasticity for modeling soil supports
  • Automated nonlinear fiber hinge model for frame elements
  • Buckling analysis for any applied load from any stressed condition
  • Linear and nonlinear direct integration time history analysis
  • Enhanced section cuts – results for wall, slab or diaphragm design
  • Generalized displacement definitions for deformation measures


  • Automated static lateral seismic loads implemented for codes listed below
  • Automated static lateral wind loads implemented for codes listed below
  • Response Spectrum functions implemented for codes listed below
  • Auto-permutation of directions and eccentricities for static Wind and Seismic
  • Updated generation of lateral Notional loads for design
  • Live Load Reduction factors implemented for codes listed below
  • Enhanced design output
  • Updated Steel frame design including seismic for codes listed below
  • Special considerations for EBF and BRB
  • Updated Concrete frame design including seismic for codes listed below
  • Updated Composite Beam design for codes listed below
  • Added Composite column design for codes listed below
  • Updated Shearwall design including seismic for codes listed below
  • Added Masonry Shearwall Design based on ACI 530-11
  • Updated Steel Joist Design based on SJI 2010
  • Wall reinforcement design optimization
  • Curved shearwall design
  • Drift optimization for steel and concrete frame structures
  • Drift optimization for shearwall structures
  • Added Steel connections design including base plates for AISC 360-10

Graphical Display

  • Increased number of view windows
  • Ray tracing, textures, lights and shadows for true rendering
  • Direct X view window with fly through
  • Display of forces acting on a diaphragm
  • Vector direction plots of maximum forces/stresses in slabs and walls
  • Story load, shear and moment diagrams over building height
  • Print graphics using user specified drawing scale


  • All input, output and design viewable in table format
  • Easy access to corresponding tables from Model Explorer
  • Table display improved, including filters and selection
  • Automated generation of standard reports
  • Fully customizable report generation
  • Report includes tabular and graphical output
  • Named displays and user text can be added to reports
  • Report is viewable on screen
  • Report can create .docx


  • Creation of schematic construction drawings for concrete and steel structures
  • Framing plans and schedules for steel frames
  • Framing plans and schedules for composite floors
  • Reinforcing schedules for concrete beams and columns
  • Reinforcing details for concrete shear wall elevations and cross-sections
  • Customizable detailing rules
  • Customizable drawing sheets with multiple views
  • Automated Bill of Quantities
  • Print or export to AutoCAD

External Interfacing

  • ETABS API for custom programming and interfacing
  • Import/Export of analytical and physical model using IFC2x2, 2X3, 2X4
  • Import/Export model from/to Revit 2011, 2012 and 2013
  • Import/Export model from/to AutoCAD 2011, 2012 and 2013
  • Export graphics to pdf, dxf, bmp, jpeg, giff, png formats


  • Enhanced Online/Offline Help
  • New User’s manuals
  • Updated Analysis manual
  • New Tutorials and Watch and Learn movies
  • New Design manuals
  • New Verification manual

List of Implemented Design Codes

Static lateral seismic load codes:

  1. ASCE 7-10
  2. AS/NZS 1170 2002
  3. GB50011-2010
  4. Eurocode 8 2004
  5. IS 1893 2002
  6. Italian NTC 2008
  7. NBCC 2010
  8. Turkish Seismic Code 2007
  9. NZS 1170 2004
  10. BOCA 96
  11. ASCE 7-02
  12. ASCE 7-05
  13. NBCC 95
  14. NBCC 2005
  15. NEHRP 97
  16. UBC 94
  17. UBC 97
  18. UBC 97 Isolated

Static lateral wind load codes:

  1. ASCE 7-10
  2. AS/NZS 1170 2002
  3. GB50011-2010
  4. Eurocode 8 2004
  5. IS 1893 2002
  6. Italian NTC 2008
  7. NBCC 2010
  8. Turkish Seismic Code 2007
  9. NZS 1170 2004
  10. BOCA 96
  11. ASCE 7-02
  12. ASCE 7-05
  13. NBCC 95
  14. NBCC 2005
  15. NEHRP 97
  16. UBC 94
  17. UBC 97
  18. UBC 97 Isolated

Response Spectrum functions codes:

  1. AS1170-2007
  2. ASCE 7-02
  3. ASCE 7-05
  4. ASCE 7-10
  5. BOCA 96
  6. GB50011-2010
  7. Eurocode 8-2004
  8. IS 1893:2002
  9. Italian NTC 2008
  10. Italian3274
  11. NBCC 2005
  12. NBCC 2010
  13. NBCC95
  14. NEHRP97
  15. NZS1170-2004
  16. NZS 4203
  17. Turkish Seismic Code 2007
  18. UBC 94
  19. UBC 97

Live Load Reduction factors codes:

  1. ASCE 7-95
  2. ASCE 7-05
  3. ASCE 7-10
  4. AS/NZ 1170.1-2002
  5. Chinese GB 50009-2012
  6. Eurocode 1991:2002
  7. Hong Kong COP 2011
  8. Indian IS 875-1987
  9. NBCC95
  10. NBCC2005
  11. NBCC2010
  12. UBC97
  13. User Parameters (per Section 1607.5, UBC 1997)
  14. User Defined Curves (By Tributary Area)
  15. User Defined (By Stories Supported

Steel frame design codes:

  1. AISC 360-10
  2. AISC 360-05
  3. AISC LRFD 93
  4. AISC ASD 89
  5. AS 4100-1998
  6. BS 5950-2000
  7. CSA S16-09
  8. Eurocode 3-2005
  9. IS 800:2007
  10. Italian NTC 2008
  11. NZS 3404:1997
  12. GB50017-2003

Concrete frame design codes:

  1. ACI 318-11
  2. ACI 318-08
  3. ACI 530-11
  4. AS 3600-09
  5. BS8110-97
  6. CSA A23.3-04
  7. Eurocode 2-2004
  8. Hong Kong CP 2004
  9. IS 456:2000
  10. Italian NTC 2008
  11. KCI-1999
  12. Mexican RCDF 2004
  13. NZS 3101:2006
  14. Singapore CP 65:99
  15. TS 500-2000
  16. GB50010-2010

Composite beam design codes:

  1. AISC 360-10
  2. AISC 360-05
  3. BS 5950-1990
  4. CSA S16-09
  5. Eurocode 4-2004
  6. GB50017-2003

Shearwall design codes:

  1. ACI 318-11
  2. ACI 318-08
  3. AS 3600-09
  4. BS 8110-97
  5. CSA A23.3-04
  6. Eurocode 2-2004
  7. Hong Kong CP 2004
  8. IS 456:2000
  9. Mexican RCDF 2004
  10. NZS 3101:2006
  11. Singapore CP 65:99
  12. TS 500-2000
  13. GB50010-2010

Composite Column Design Codes:

  1. AISC 360-10
  2. JGJ3-2010, CECS159:2004, JGJ138-2001