Released 31-Mar-2021Release Notes
19.1.0_ETA_UI_PT tendon profile
PT tendon vertical profile enhanced. All editable information related to the tendon profile, geometry, loads, and losses are available in one location.
19.1.0_ETA_model_uniform area loads
Uniform area loads assigned to floor objects are now additive when the loaded objects overlap.
19.1.0_ETA_loading_seismic ASCE 7-16
ASCE 7-16 auto seismic load has been enhanced to incorporate the exception contained on section 11.4.
Concrete beam and strip-based slab design now allow control over including or excluding axial compression in flexural design if the axial compression reduces the required reinforcement. Axial tension and axial compression that increase the required flexural reinforcement are always considered. For post-tensioned construction all axial load is always considered.
- Calculation of shear yield (Vy) now includes user-specified rebar in beam and column hinges even if the member has not been designed.
- Faster initialization and finalization of the analysis process when running cases in parallel.
- Faster nonlinear stiffness formation, event determination, and state update operations for small to moderate sized models.
Import and Export
Application Programming Interface (API)
Released 28-Oct-2020Release Notes
ETABS 19.0.0 Structural Model Enhancements
The special requirements applied to the steel beam-column connections using the proprietary SidePlate® Systems have been updated to the latest version.
ETABS 19.0.0 Loading Enhancements
Auto lateral loading has been added per the Korean KDS 41 17 00:2019 code, including seismic load and response-spectrum functions.
ETABS 19.0.0 Performance-Based Design Enhancements
- 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.
ETABS 19.0.0 Performance-Based Design Enhancements 1
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.
ETABS 19.0.0 Analysis Enhancements
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.
ETABS 19.0.0 Steel Frame Design Enhancements
Numerous enhancements have been implemented for Russian SP 16.13330.2017 steel frame design.
ETABS 19.0.0 Concrete Frame Design Enhancements
- Concrete frame design has been added per the ACI 318-19 code.
- Composite column design has been added per the AISC 360-16 code.
ETABS 19.0.0 Shear Wall Design Enhancements
Shear wall design has been added per the ACI 318-19 code.
ETABS 19.0.0 Database Tables Enhancements
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.
Import and Export
ETABS 19.0.0 External Import/Export Enhancements
- 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)
ETABS 19.0.0 Application Programming Interface (API) Enhancements
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.
Released 11-Feb-2020Release Notes
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 18.1.1 Enhancements Detailing
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
Released 11-Dec-2019Release Notes
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.
ETABS 18.1.0 Enhancements Performance-Based Design Acceptance Criteria 1
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.
ETABS 18.1.0 Enhancements 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.
ETABS 18.1.0 Enhancements Performance-Based Design Results Display 1
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.
ETABS 18.1.0 Enhancements Performance-Based Design Results Display 2
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.
ETABS 18.1.0 Enhancements Performance-Based Design Results Display 3
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).
ETABS 18.1.0 Enhancements Performance-Based Design Results Display 4
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.
ETABS 18.1.0 Enhancements Analysis
Analysis can now run multiple load cases in parallel. This is particularly efficient for considering large suites of earthquakes in Performance-Based Design.
ETABS 18.1.0 Enhancements 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.
ETABS 18.1.0 Enhancements 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.
Output and Display
18.0.0 | 18.0.1|18.0.2
Released 3-Sep-2019Release Notes
Released 3-Jun-2018Release Notes
ETABS 17.0.0 Enhancements Analysis Modeling
New link property to represent high-damping rubber-bearing isolator
ETABS 17.0.0 Enhancements Analysis Modeling 1
Multiple controlled displacements for static pushover analysis
ETABS 17.0.0 Enhancements Analysis Modeling 2
Link properties can be used for line and area springs
ETABS 17.0.0 Enhancements Modeling 3
Ability to automatically add rigid-zone areas over columns and walls
ETABS 17.0.0 Enhancements Analysis Modeling 3
Strain response for shell objects (walls and floors)
ETABS 17.0.0 Enhancements Analysis Modeling 4
Option to control the slope of steep strength-drop in frame hinges
ETABS 17.0.0 Enhancements Analysis Modeling 5
Improved convergence behavior for displacement-controlled nonlinear static load cases
ETABS 17.0.0 Enhancements Analysis Modeling 6
Non-iterative event-to-event option for nonlinear static analysis
ETABS 17.0.0 Enhancements 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.
ETABS 17.0.0 Enhancements Design
Parallel processing has been implemented for running design (all types)
ETABS 17.0.0 Enhancements Design 1
Automatic concrete column design to achieve strong-column/weak-beam connections
ETABS 17.0.0 Enhancements Performance Based Seismic Design 1
Optional points BC and CD on hinge backbone curves
ETABS 17.0.0 Enhancements Design 2
Implementation of AISC Design Guide (DG) 11 for composite beam design based on AISC 360, CSA S16 and Eurocode
ETABS 17.0.0 Enhancements 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.