22.6.0

Released 19-May-2025

Release Notes

Shear Wall Design

22.6.0_ETA_speed_core

Composite shear wall design using the SpeedCore system is now available in ETABS, following the provisions of AISC 360-22 Specifications. The design checks include axial tension and compression strength, shear strength, flexure and biaxial flexure strength, along with other detailing requirements.

Concrete Design

22.6.0_ETA_concrete_frame_CSA_A23.2-2024

Concrete frame design according to Canadian CSA A23.3-2024 is now available.

Composite Beam Design

22.6.0_ETA_composite_column_design

Composite column design according to Indian IS 11384:2022 is now available.

22.6.0_ETA_composite_beam_steel_tube_sections

Composite beam design is now available for steel tube sections per all available composite beam design codes.

22.6.0_ETA_tee_welded_to_bottom_flange

Composite beam design now supports a tee reinforcing the bottom flange. Previously, only cover plate reinforcing could be specified.

Steel Design

22.6.0_ETA_interactive_steel_frame_design

Interactive steel frame design is now available for AISC 360 and Eurocode 2.

22.6.0_ETA_slip_resistance_design_checks

Option added for slip resistance design checks for beam-to-beam and beam-to-column connections in accordance with AISC Specifications when slip-critical bolts are specified.

Output and Display

22.6.0_ETA_steel_beam_deflection

Steel beam deflection ratios are now reported in the steel details table.

22.6.0_ETA_shell_stress_strain_output_ripped_waffle

The shell stress and strain output for ribbed and waffle type slabs that experience plate bending has been improved.

Import and Export

22.6.0_ETA_export_dxf_3D_data

An enhancement has been made to export GPU 3D data to DXF from the printing form when using DirectX graphics.

22.6.0_ETA_Perform3D_compound_property_weight

An enhancement was made to fill Perform3D Compound property weight modifier from ETABS frame and wall sections.

22.5.0 | 22.5.1

Released 24-Feb-2025

Release Notes

Structural Model

2250_ETA_elasto-plastic

An enhancement has been implemented to allow the definition of Elasto-Plastic nonlinear behavior for the area spring property without the need to define a link property to specify this behavior.

Steel Design

2250_ETA_steel_frame_CSA-S16:2024

Steel frame design according to CSA S16:2024 is now available.

Composite Beam Design

2250_ETA_composite_beam_CSA-S16:2024

Composite beam design according to CSA S16:2024 is now available.

2250_ETA_composite_column_CSA-S16:2024

Composite column design according to CSA S16:2024 is now available.

Loading

2250_ETA_AS-1170.4:2024

Auto seismic loading and response spectrum function according to AS 1170.4-2024 has been added.

2250_ETA_NBCC_2020_response_spectrum

An enhancement was made to the NBCC 2020 response spectrum function to add smaller time-steps for computing the intermediate acceleration based on Log-Log Interpolation as specified in Section A.4.1.8.4.(6) of the NBCC 2020 code.

User Interface

2250_ETA_display_form_MDI

An enhancement was made to position forms with respect to the main application window for single and multiple screens. Floating windows are loaded at their previous location on any screen.

22.4.0

Released 23-Dec-2024

Release Notes

Analysis

22.4.0_ETA_link_elements_large_displacements

Greater control over link-elements in models with large displacements has been added. This new behavior applies to nonlinear static, direct-integration, and staged-construction load cases where the geometric nonlinearity parameter has been set to P-Delta plus Large Displacements.

Steel Design

22.4.0_ETA_composite_beam_design_sci_publication_355

ETABS can now design composite beams with large web openings per the provisions of SCI Publication 355 and of Eurocode 3 - Design of Steel Structures - Part 1-13. This includes beams with a regular I-section and discrete openings as well as castellated and cellular beams.

Shear Wall Design

22.4.0_ETA_slenderness_checks_wall_buckling

ACI 318-19 slenderness checks for wall buckling in the out-of-plane direction are now performed for walls in a single plane (i.e. 2D pier) for uniform and general reinforcing options.

ACI 318-19 shear wall design now considers the Seismic Design Category (SDC) when determining whether a wall shear capacity check is required.

Output and Display

22.4.0_ETA_pier_shear_design_display

Eurocode 2 shear wall design, pier output has been improved to include additional design parameters such as amplified shear (Vu,amplified) for seismic piers, pier shear capacity (Vrd) and pier maximum allowable shear (Vrdc,max).

Concrete Design

22.4.0_ETA_concrete_frame_slenderness_design

ACI 318-19 and AS 3600-2018 concrete frame design output has been enhanced with additional parameters now reported for column slenderness design. For ACI 318-19 code, these parameters are beta_dns, (EI)eff and Pc. For AS 3600-2018 code, these parameters are beta_d, φ*Mub and Pc.

Documentation

22.4.0_ETA_analysis_reference_manual

The CSI Analysis Reference Manual has been updated to include content for minor existing features that were previously only described in the Help, as well as for style and improved ability to search within the PDF file.

Application Programming Interface (API)

22.4.0_ETA_api_export_import

New API functions have been added to allow export and import of the model text file (.e2k) or the database tables to Excel, Access, Text, or XML file.

22.2.0 | 22.3.0

Released 18-Oct-2024

Release Notes

Analysis

22.2.0_ETA_frequency_domain_analysis

The following two types of frequency domain analysis have been added into ETABS:

  • Steady State analysis may be used in lieu of the more computationally intensive Time-History, often for cases where the initial ramp up or cool down periods are not considered important.
  • Power Spectral Density analysis is a method to perform a probabilistic evaluation of random vibrations across a frequency range.

Structural Model

22.2.0_ETA__sumitomo_damper

A new link property was added to represent the Sumitomo Viscoelastic Damper produced by Sumitomo Rubber Industries.

22.2.0_ETA_NL_point_spring_prop

The definition of point spring properties has been enhanced / simplified so that simple, nonlinear properties can be specified without having to first define a link.

Composite Beam Design

22.2.0_ETA_comp_beam_design_IS11384_BG50017

Composite Beam Design codes have been added for the Indian IS 11384:2022 and the Chinese GB50017 codes.

User Interface

22.2.0_ETA_display_rebar_detailing

Rebar detailing information for concrete columns and beams can now be accessed from the object right click form when detailing results are available.

22.2.0_ETA_display_slab_rebar_editor_strip_rebar

The rebar detailing editor for strip rebar can now be accessed from the design strip right click form when slab detailing results are available.

22.2.0_ETA_display_frame_local_color

An enhancement was made to display frame local axes color in the section definition form and local axes numbers in the model assignment display.

Output and Display

22.2.0_ETA_colored_contours

Frame force/moment diagrams can now be displayed with colored contours.

22.0.0 | 22.1.0

Released 13-Jul-2024

Release Notes

Introduction

22.0.0_ETA_enhancement_video

Learn more about the latest enhancements in ETABS v22.0.0.

Analysis

22.0.0_ETA_walking_vibrations

Serviceability assessment of steel-framed floor systems subjected to walking vibrations according to AISC Design Guide 11, Chapter 7 has been added.

Structural Model

22.0.0_ETA_auto_gen_NL_frame_hinges

An enhancement was made to add the capability for automatic generation of frame nonlinear hinges based on recommendations in ASCE 41-23. This includes:
  1. 1. Steel beam, column, and brace hinges using the reference standard AISC 342-22 as specified in ASCE 41-23 Chapter 9.
  2. 2. Concrete beam, column, shear wall, and coupling beam hinges using the reference standard ACI 369.1-22 as specified in ASCE 41-23 Chapter 10.

22.0.0_ETA_curved_beam_to_shell

Conversion of curved concrete beams to shell slabs is now available. Previously, only straight beams could be converted.

Loading

22.0.0_ETA_respon_spec_kyrgyztan

Response spectrum function for Kyrgyztan "SNiP KR 20-02:2018" has been added.

22.0.0_ETA_auto_wind_vietnam

Auto wind load has been added for the Vietnamese code TCVN 2737:2023.

Steel Design

22.0.0_ETA_steel_AISC-360-22

The AISC 360-22 design code has been added for steel frame design (including AISC 341-22 Seismic Provisions), composite beam design, composite columns design, and steel connection design.

22.0.0_ETA_steel_CSA-S16-2019

Composite column design per CSA S16-19 design code has been added.

22.0.0_ETA_steel_joists

Steel joist design has been enhanced with the following new features:
  1. 1. New joist design code SJI 100-2020 has been added.
  2. 2. A new type of steel joist section has been added, "Custom Joist Section", whose definition includes component section data.
  3. 3. A detailed calculation report has been implemented.

Concrete Design

22.0.0_ETA_concrete_ACI-318-19

An enhancement was made to add joint-shear design for ACI 318-19 concrete frame design. Joint shear is now performed for:
  1. 1. Ordinary moment frames (OMF) in Seismic Design Category (SDC) B, using the nominal flexural strength of the beams.
  2. 2. Intermediate moment frames (IMF), using the nominal flexural strength of the beams.
  3. 3. Special moment frame (SMF), using the probable flexural strength of the beams.

22.0.0_ETA_concrete_special_shear_ACI-318-19

An enhancement has been added for Special Structural concrete shear walls per ACI 318-19. The design is now done using the amplified factored shear force, Ve = Omega_v * w_v * Vu < 3.0 * Vu) per section 18.10.3.1. This check for Special Structural Walls was not present in earlier versions.

Determination of shear demand for walls with hw / ℓw ≥ 2.0 [Taken from ACI 318-19(22), Fig. R18.10.3.1]

22.0.0_ETA_concrete_maj_min_dir_ACI-318-19

An enhancement has been made to the ACI 318-19 concrete frame design code so that it now considers the interaction of major- and minor-direction shear forces in a column per sections 22.5.1.10 and 22.5.1.11.

Design Results

22.0.0_ETA_parallel_processing

An enhancement has been made to speed up joist design by using parallel processing.

22.0.0_ETA_steel_joist_SJI-2010

Steel joist design per the SJI 2010 code has been enhanced so that the design calculations can now be exported to reports and tables.

Material Libraries & Databases

22.0.0_ETA_mat_lib_ASTM

A new material library has been added for United States materials per the ASTM A1085/1085M specifications.

22.0.0_ETA_frame_sec_AISC

New frame section libraries have been added conforming to AISC Shapes Database v16.0.

Reporting

22.0.0_ETA_auto_wind_report

Auto wind-load calculations for AS/NZS 1170.2:2011 and 2021 loading codes have been added to the project report.

Application Programming Interface (API)

22.0.0_ETA_api_.NET8

The ETABS API has been updated to support .NET 8.

21.2.0

Released 30-Nov-2023

Release Notes

Introduction

21.2.0_ETA_enhancement_video

Learn more about the latest enhancements in ETABS v21.2.0.

Design

21.2.0_ETA_AISC_360-16_360-10

Steel connection design is now available per the AISC 360-16 and AISC 360-10 codes. This includes Beam-Beam, Beam-Column, Column-Footing, welded, and bolted connections.

21.2.0_ETA_euro_steel_frame_corrigendum_2

An enhancement has been made to the Eurocode 3-2005 steel frame design to update the design according to Corrigendum 2 released in 2009.

Loading

21.2.0_ETA_turkish_code_2018_response_spec

The TSC-2018 response-spectrum function has been enhanced to allow specification of the R, D and I parameters.

The auto-seismic load pattern and response-spectrum function were added for the Malaysian National Annex of Eurocode 8-2004.

Structural Model

21.2.0_ETA__frame_hinge_assign_presets

The frame hinge assignment feature has been enhanced with four new preset hinge assignment distribution types:

  1. 1. Beam Column, which adds a moment or PMM hinge at the ends of the frame object.
  2. 2. Distributed Plasticity, which adds hinges along the length of the frame object based on a specified integration rule.
  3. 3. Equal Spacing, which adds hinges at a fixed spacing along the length of the frame object.
  4. 4. Continuous Support, which adds one hinge at the center of every frame element associated with the selected frame object.

Analysis

21.2.0_ETA_multi-thread_solver

An enhancement has been made to allow the “Number of (Internal) Threads for Analysis" setting to also control number of threads that can be used by the Multi-threaded Solver. This creates less competition for resources and can speed up analysis.

21.2.0_ETA_modal_damping

An enhancement has been made to speed up direct-integration time-history load cases with additional modal damping specified for a large number of modes. For building structures, the higher-frequency modes typically respond statically to seismic and wind loading, and stiffness proportional damping is more efficient for the damping at high frequencies.

Output and Display

21.2.0_ETA_disable_sav_fiber_analysis_results

The option to disable saving of individual fiber results for Fiber P-M2-M3 frame hinges is now available. This can significantly reduce disk storage when individual fiber stress-strain results are not needed. Detailed hinge results will still be available, including the state and status of the hinge obtained from the fiber results.

Database Tables

21.2.0_ETA_parallelized_database_tables

The following "Analysis Results" database tables have been parallelized for increased speed during display or export: "Joint Displacements, "Joint Displacements - Absolute", “Joint Drifts", "Pier Forces", "Pier Force Status", "Spandrel Forces, and "Spandrel Force Status". In addition, individual table progress will now be displayed in the status bar while filling any of the “Analysis Results” tables for display/export. The progress bar is effective for tables that take significant time to display/export.

Import and Export

21.2.0_ETA_exporting_non-linear_links_Perform3D

Enhancement added for exporting Non-Linear links from ETABS to Perform3D. Following links types are handled:

  1. 1. ETABS Damper - Exponential > Perform3D Fluid Damper
  2. 2. ETABS Gap > Perform3D Nonlinear Elastic Gap-Hook Bar
  3. 3. ETABS Hook > Perform3D Nonlinear Elastic Gap-Hook Bar
  4. 4. ETABS Rubber Isolator > Perform3D Seismic Isolator, Rubber Type
  5. 5. ETABS Friction Isolator > Perform3D Seismic Isolator, Friction Pendulum

21.2.0_ETA_exporting_shells_Perform3D

ETABS models exported to Perform3D now include shell uniform loads in the global coordinate system. These loads will be exported to Perform3D as lumped nodal loads on the nodes which form the shell elements.

21.2.0_ETA_exporting_pier_elements_Perform3D

For ETABS models exported to Perform3D, frame objects that are assigned a Pier or Spandrel label will be exported to Perform3D in separate element groups based on their Pier or Spandrel label names.

21.2.0_ETA_exporting_gage_elements_Perform3D

ETABS models exported to Perform3D now include Line and Quad gauge elements. Translational type line gauges in ETABS will be exported as Perform3D Axial Strain Gage (2-node) components. Rotational type line gauges in ETABS will be exported as Perform3D Rotational Gage, Beam Type (2-node) components. Shear type quad gauges in ETABS will be exported as Perform3D Shear Strain Gage (4-node) components. Rotation type quad gauges in ETABS will be exported as Perform3D Rotation Gage, Wall Type (4-node) components.

Cloud Sign-in Licensing

21.2.0_ETA_cloud_sign_in_lic

Cloud Sign-in licensing is now available

  1. • Access CSI software using secure user credentials — no more activation keys
  2. • Access licenses anywhere with internet access
  3. • Option to create License Groups to manage who has access to your licenses
  4. • Option to remotely terminate an active license session
  5. • Option to federate your identity provider (IdP), allowing users to use their familiar company credentials instead

Cloud Sign-in Licensing Details

21.1.0

Released 14-Aug-2023

Release Notes

Loading

21.1.0_ETA_function_def

Several enhancements have been made to the handling of time-history and response-spectrum functions:
  • ∙ The processing of large function files, such as wind records, has been made more efficient for speed and storage.
  • ∙ Functions can be added or modified after the analysis is run and the model is locked.
  • ∙ More control has been given to locating function files on the local computer or network.

Analysis

21.1.0_ETA_speed_eff_parallelized_design

Parallelized design and response-recovery have been made more efficient for speed, memory usage, and disk IO for large analysis models and/or models with many long time-history functions, such as wind records. Parallelized response recovery affects certain larger output tables and time-consuming graphical displays.

Design

21.1.0_ETA_design_code_crack-width

Crack-width (serviceability) design of concrete members has been added according to Eurocode 2-2004 and Italian NTC 2008 codes. This feature is available for beam (M3) design and for the design or check of column reinforcement. Crack width, concrete stress, and steel stresses are calculated and compared against the limits imposed by the Eurocode 2-2004.

Detailing

21.1.0_ETA_pt_tendon_vert_profile

An enhancement was made to show PT tendon vertical profiles in slabs and beams in Detailing drawings. Previously the PT profiles were shown in the on-screen Detailing, but not in the drawing sheets produced for printing and/or export.

21.0.0 | 21.0.1

Released 11-May-2023

Release Notes

Detailing

21.0.0_ETA_detailing_menu

Detailing of concrete and steel structures, as well as the production and management of schematic design drawings, is now available from a new Detailing menu inside ETABS. It can now handle multiple towers as well.

21.0.0_ETA_detailing_revit_reinforcement

Detailed reinforcement from beams, slabs, column stacks, and wall stacks can now be exported from ETABS to Autodesk® Revit® through the CSiXRevitTM 2023 plugin to Revit 2023.

Structural Model

21.0.0_ETA_tributary_PT_tendon

Tributary PT tendons are now accounted for in finite element-based design of slabs and cracked-slab deflection analysis (short- and long-term).

Loading

21.0.0_ETA_NBCC_2020

Auto-wind load, auto-seismic load, and response-spectrum function based on NBCC 2020 have been added.

21.0.0_ETA_ASCE_7-22

Auto-wind load, auto-seismic load, and response-spectrum function based on ASCE 7-22 have been added.

21.0.0_ETA_assign_loads_null_lines/areas

Loads assigned to null lines and null areas applied in any local or global direction are now transferred to the underlying structural floors. In earlier versions only loads in the gravity direction were transferred.

Design

21.0.0_ETA_steel_design_AS_4100:2020

AS 4100:2020 steel frame design has been added.

21.0.0_ETA_composite_design_Euro_4-2004

Eurocode 4-2004 composite column design has been added.

Output and Display

21.0.0_ETA_crack_sec_modifiers_database

Cracked-section modifiers for beam and floor objects are now included in the database tables.

21.0.0_ETA_database_tables_includes

Nonlinear shear-material state and status output for general wall hinges is now available in the database tables, deformed shape display, and performance-check output.

Database Tables

21.0.0_ETA_edit_select_perf_check_def

Performance-check definitions can now be edited when the model is locked and selected for associated tabular output.

Application Programming Interface (API)

21.0.0_ETA_.net6

Support for .NET 6 has been added including a help topic in the "Key Concepts" folder.

20.2.0

Released 1-Jul-2022

Release Notes

Structural Model

20.2.0_ETA_specified_rebar_layout

The "Specified Rebar Layout" rebar option for wall hinges now allows the option of assigning the rebar in a Pier orientation or a Spandrel orientation.

20.2.0_ETA_fixed_length_damper

The exponential and bilinear viscous-damper link properties have been enhanced to add a Fixed Length Damper option for the axial degree of freedom. When enabled, this allows a fixed-length damping device to be modeled together with variable-length extenders that are automatically determined from the length of the drawn link objects. For analysis, the extender is effectively a linear spring that is in series with the damper.

20.2.0_ETA_steel_csa_g40.20-13

A built-in material library has been added for Canada with steel materials per the CSA G40.20-13/G40.21-13 standard, concrete materials per the CSA A23.3 standard, and rebar materials per the CSA G30.18:21 standard.

Analysis

20.2.0_ETA_faster_analysis_model_gen

An enhancement has been made to speed up generation of the analysis model for models with nonlinear staged-construction load cases and many area objects using line constraints.

Design

20.2.0_ETA_concrete_csa_a23.3-19

The concrete code “CSA A23.3-19” has been added for reinforced-concrete and post-tensioned slab design.

20.2.0_ETA_nzs_310-06

Reinforced-concrete and post-tensioned slab design have been updated for the NZS 3101-06 code to accommodate Amendments 1 to 3.

20.2.0_ETA_concrete_slab_aci_318-19

A new concrete slab design preference is available for the "ACI 318-19" code to optionally set the depth-dependent shear-strength reduction factor, Lambda_s, to 1.0 for mats and footings per ACI 318-19 13.2.6.2.

Loading

20.2.0_ETA_temp_load_area_objects

An enhancement was made so temperature loads on overlapping area objects will be applied additively. Previously, temperature loads assigned to the slab would not affect overlapping drop panel objects.

Output and Display

20.2.0_ETA_integrated_wall_reactions

Integrated wall reactions are now available for graphical display and in a new database table.

Application Programming Interface (API)

20.2.0_ETA_api_ntc_2018

The Application Programming Interface (API) has been enhanced with the addition of functions to get and set:
 
  • • Parameters for the Italian NTC 2018 response-spectrum function.
  • • Design preferences and design overwrites for steel frame code CSA-S16-19.
  • • Parameters for eigen and Ritz load cases.

20.2.0_ETA_api_multiple_instances

The following enhancements have been made to the Application Programming Interface (API):

  • • The client can attach to any running instance of ETABS given its process ID.
  • • A new command "Set as active instance for API" has been added to the Tools menu.
  • • A new interface cPluginContract has been added to simplify plugin development.
  • • Speed has been improved for external .NET clients that call the API by chaining properties and methods in deeply nested loops.

20.1.0

Released 31-Mar-2022

Release Notes

Structural Model

20.1.0_ETA_shear_wall_hinges

A new general shear wall hinge has been added, which consists of a pair of orthogonal P-M3 or Fiber P-M3 hinges, plus a linear or nonlinear shear material. These features allow the hinge to be used for modeling spandrels as well as piers, and to handle more complex wall geometries, such as near openings or geometry transitions. General shear wall hinges can be used for nonlinear static, staged-construction, and direct-integration time-history analyses.

20.1.0_ETA_age_of_concrete

The age of concrete at which loading is applied can now be specified for long-term cracked-section analysis. Previously, the age at loading was assumed to be 7 days.

Design

20.1.0_ETA_CSA A23.3_concrete_design

The CSA A23.3-19 code has been added for concrete frame design.

The CSA S16-19 code has been added for steel frame design.

The CSA S16-19 code has been added for composite beam design.

Data Files

20.1.0_ETA_external_data_files_faster

The handling of time history functions defined in external data files with many data points has been significantly enhanced for speed.

20.1.0_ETA_indian_database_files

New section-property database files have been added for steel sections produced by Indian manufacturers TATA, Jindal Steel Ltd. and APL Apollo Ltd.

20.0.0

Released 11-Jan-2022

Release Notes

CSI Spotlight

20.0.0_ETA_enhancement_videos

Watch our Spotlight Videos to learn more about the latest enhancements in ETABS v20.0.0.

Part 1 - Modeling & Loading

Part 2 - Design & Performance-Based Design

Structural Model

20.0.0_ETA_support_lines

Support lines have been added for faster modeling of design strips, tendons, and slab panels. They can be drawn and edited on-screen as well as generated automatically along grid lines.

s20.0.0_ETA_slab_panels

Slab panels are a new entity that can be automatically generated using grids or support lines, or they can be user-drawn. They overlay the floor system and can be used to apply live load for load-pattern analysis, and they can also be used to report mid-panel displacements and soil-pressure summaries.

20.0.0_ETA_floor_line_releases

Moment and shear releases can now be specified along lines within a slab object. Previously hinges could only be specified at the boundaries of slab objects.

20.0.0_ETA_AS_Creep

Time-dependent behavior of concrete has been added for the AS3600-2018 code, including creep, shrinkage, and age-dependent stiffness.

20.0.0_ETA_scale_factors

Scale factors can now be applied to time-dependent material properties - creep, shrinkage, and stiffness - allowing more control over behavior for special situations.

Loading

20.0.0_ETA_pattern_live_load

Pattern Live load is now available as a type of loading, allowing manual assignment of live loads to different regions of the structure that will be automatically varied in load combinations to produce the maximum response.

20.0.0_ETA_auto_patt_loading

Pattern loading, including Auto-Pattern loading, can now be assigned to slabs. Auto-Pattern loading automatically creates multiple load patterns from specified live loads on slabs, each loading a single slab panel.

20.0.0_ETA_patt_loading_img

20.0.0_ETA_AS_NZ_wind_load

Auto wind loading has been added for the AS/NZS 1170.2:2021 code.

20.0.0_ETA_temp_gradient_loads

Temperature gradient loads can now be assigned to frames and shells, representing a change in temperature across the depth that tends to cause bending.

Analysis

20.0.0_ETA_named_sets_chng_mod_release

New staged-construction operations are available to change stiffness modifiers applied to frames and shells, as well as end releases applied to frames. These operations reference named sets of modifiers and releases and they can be applied to individual objects or groups.

20.0.0_ETA_analy_speed_FNA

The speed of analysis has been improved for nonlinear modal time-history (FNA) load cases that have a large number of undamped linear link elements, such as for meshed base mats on an elastic foundation.

20.0.0_ETA_opt_AMD_CPUs

The analysis engine has been optimized for newer AMD CPUs.

Design

20.0.0_ETA_moment_cap_PT_sections

The reporting for the PT design of slabs has been enhanced with tabular and graphical displays of the moment capacity at every station of the design strips, as well as a tabular display of the pre-compression due to PT along the strips.

20.0.0_ETA_concrete_frame_design

Several enhancements have been made to Eurocode 2-2004 concrete frame design, including improved calculation of slenderness effects and new national-annex values of TanTheta for shear design.

20.0.0_ETA_shear_design

Slab design for IS 456:2000 now provides an option increase longitudinal reinforcement in slabs as needed to avoid shear links in the slab.

20.0.0_ETA_Euro_NTC_steel design

Several enhancements have been made to steel frame design for the Eurocode 3-2005 and NTC 2008/2018 codes, including improved calculation of Mcr, and results output referred to y-z axes rather than major-minor axes.

Performance-Based Design

20.0.0_ETA_frame_hinge_coupling_beams

Nonlinear frame hinges can now be automatically generated for coupling beams per ASCE 41, Table 10-19 for flexure-controlled members and Table 10-20 for shear-controlled members.

20.0.0_ETA_rebar_mat_wall_hinge

User-specified rebar material is now available for defining vertical and horizontal wall hinge reinforcement.

20.0.0_ETA_auto_hinge_hysteresis

The hysteresis type can now be specified for certain types of auto-generated frame hinges.

Integration with Perform 3D

20.0.0_ETA_importsFrom_perform

Imports from Perform3D now support nonlinear components "Moment Hinge, Rotation Type", "Shear Hinge, Displacement Type", and "P-M2-M3 Hinge, Concrete Rotation Type". Additionally, the following load types can now be imported: Self Weight, Nodal Loads, and Element Loads.

Graphics

20.0.0_ETA_UI_measuring_tool

On-screen measuring tools are now available to measure line lengths, the angles between two lines, and the areas and perimeters of closed polygons.

20.0.0_ETA_UI_PT_display

PT tendon display options now include Number of Strands, Tendon System, Vertical Profile Control Points, Vertical Profile Values, Total Length, Jacking Force, and Elongation.

Database Tables

20.0.0_ETA_Diaph_table

A new table displays the applied, reactive, and net diaphragm forces acting at column and wall locations for selected floors.

Data Exchange

20.0.0_ETA_exr_files_csi_products

EXR files can now be imported and exported directly between ETABS and CSI products SAP2000 and SAFE. Previously this feature required using CSiXRevit as an intermediary.

20.0.0_ETA_uni_load_sets_revit_export

Shell uniform load sets can now be exported from ETABS for import into Revit using CSiXRevit.

Application Programming Interface (API)

20.0.0_ETA_API_improvements

API functions have been added or enhanced for accessing SP 63-13330-2021 concrete frame design, Eurocode 3-2005 steel frame design, and NTC 2008/2018 steel frame design.

19.1.0

Released 31-Mar-2021

Release Notes

Modeling

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_analysis_null line

Line Spring assignments are now available for “Null” line objects.

Loading

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.

19.1.0_ETA_loading_seismic AS 1170

AS 1170.4 auto seismic load has been enhanced for base shear scaling based on Amendment 1.

Design

19.1.0_ETA_design_user control

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. 

19.1.0_ETA_design_Euro 2004

Eurocode 2-2004 concrete frame design has been updated to consider the extra longitudinal rebar due to shear.

Performance-Based Design

19.1.0_ETA_PBD

  • 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.

Database Tables

19.1.0_ETA_UI_interactive database

Interactive database editing is now available for Section-Designer (SD) sections, including general pier SD sections.

Import and Export

19.1.0_ETA_UI_Revit IDs

Mapping of Revit element Unique IDs to ETABS Object GUIDs can now be exported to Excel. 

Application Programming Interface (API)

19.1.0_ETA_API

Improved performance and examples for remote API and COM clients. New Python API example uses direct communication with underlying .Net Objects.

19.0.1 | 19.0.2

Released 23-Dec-2020

Release Notes

Analysis

ETABS 19.0.1 Analysis 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.

Loading

ETABS 19.0.1 Loading Enhancements

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.

19.0.0

Released 28-Oct-2020

Release Notes

Structural Components

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 Structural Model Enhancements 1

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

Loading

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 Loading Enhancements 1

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

Performance-Based Design

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 Performance-Based Design Enhancements 2

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

Analysis

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.

Design

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 Slab Design - Reinforced Concrete and PT Enhancements

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

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

Graphics

ETABS 19.0.0 Graphics Enhancements

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

Database Tables

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.

Cloud Licensing

ETABS 19.0.0 Cloud Licensing Enhancements

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

18.1.1

Released 11-Feb-2020

Release Notes

Structural Components

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.

Detailing

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 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

18.1.0

Released 11-Dec-2019

Release Notes

Performance-Based Design

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.

Analysis

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 Analysis 1

Analysis errors, warnings, and informational messages are now stored and shown after the analysis completes, as well as accessible via database tables

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.

ETABS 18.1.0 Enhancements 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.

Output and Display

ETABS 18.1.0 Enhancements Results Display and Output

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

Database Tables

ETABS 18.1.0 Enhancements 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.

18.0.0 | 18.0.1|18.0.2

Released 3-Sep-2019

Release Notes

17.0.1

Released 30-Jul-2018

Release Notes

Design

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.

17.0.0

Released 3-Jun-2018

Release Notes

Graphics

ETABS 17.0.0 Enhancements Graphics

Improved DirectX Display

Design

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 Performance Based Seismic Design

ASCE 41-17 auto hinges

ETABS 17.0.0 Enhancements Design

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

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 1

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

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 Design 3

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

Modeling

ETABS 17.0.0 Enhancements Modeling

General quadrilateral meshing of floor areas

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 Modeling 1

User-defined internal mesh for shells

ETABS 17.0.0 Enhancements Analysis Modeling 2

Link properties can be used for line and area springs

ETABS 17.0.0 Enhancements Modeling 2

Improved merging of floor areas by removing common edges

ETABS 17.0.0 Enhancements Analysis Modeling 3

Strain response for shell objects (walls and floors)

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 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 Analysis Modeling 7

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

Loading

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.

16.2.0 | 16.2.1

Released 17-Jan-2018

Release Notes

Modeling

ETABS 2016 16.2.0|16.2.1 Enhancements Modeling

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

Output and Display

ETABS 2016 16.2.0|16.2.1 Enhancements Results Display & Output

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

Analysis

ETABS 2016 16.2.0|16.2.1 Enhancements Analysis

Creep & Shrinkage

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

ETABS 2016 16.2.0|16.2.1 Enhancements Analysis 1

Modal Damping

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

16.1.0

Released 7-Apr-2017

Release Notes

Loading

ETABS 2016 16.1.0 Enhancements Loading

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

ETABS 2016 16.1.0 Enhancements Loading 1

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

ETABS 2016 16.1.0 Enhancements Loading 2

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

Graphics

ETABS 2016 16.1.0 Enhancements DirectX Graphics

3D Printing

Modeling

ETABS 2016 16.1.0 Enhancements Modeling

Library of concrete and rebar material properties for Vietnam incorporated.

Output and Display

ETABS 2016 16.1.0 Enhancements 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.

16.0.3

Released 27-Jan-2017

Release Notes

Design

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.