22.0.0

Released 31-May-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.

Bug Fixes

22.0.0_ETA_bug_fixes

Issues reported by users have been corrected.

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 user their familiar company credentials instead
Cloud Sign-in Licensing Details

Bug Fixes

21.2.0_ETA_bug_fixes

Issues reported by users have been corrected.

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.

Bug Fixes

21.1.0_ETA_bug_fixes

Issues reported by users have been corrected.

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.

Bug Fixes

21.0.0_ETA_bug_fixes

Issues reported by users have been corrected.

20.3.0

Released 25-Jul-2022

Release Notes

Bug Fixes

20.3.0_ETA_bug_fix

Issues reported by users have been corrected.

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.