CSI ETABS version 20.2.0 (x64)

Structural Model
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.

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.

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

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

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

Application Programming Interface (API)
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.

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.


ETABSis an engineering software product that caters to multi-story building analysis and design. Modeling tools and templates, code-based load prescriptions, analysis methods and solution techniques, all coordinate with the grid-like geometry unique to this class of structure. Basic or advanced systems under static or dynamic conditions may be evaluated using ETABS. For a sophisticated assessment of seismic performance, modal and direct-integration time-history analyses may couple with P-Delta and Large Displacement effects. Nonlinear links and concentrated PMM or fiber hinges may capture material nonlinearity under monotonic or hysteretic behavior. Intuitive and integrated features make applications of any complexity practical to implement. Interoperability with a series of design and documentation platforms makes ETABS a coordinated and productive tool for designs which range from simple 2D frames to elaborate modern high-rises.
ETABS version 20.2.0 includes the latest Canadian code for slab design, updated New Zealand slab design, new Canadian materials, integrated wall reactions, pier and spandrel rebar layout for wall hinges, new API functionality, and other enhancements.
CSI ETABS Tutorials
Founded in 1975, Computers and Structures, Inc. (CSI)is recognized globally as the pioneering leader in software tools for structural and earthquake engineering. Software from CSI is used by thousands of engineering firms in over 160 countries for the design of major projects, including the Taipei 101 Tower in Taiwan, One World Trade Center in New York, the 2008 Olympics Birds Nest Stadium in Beijing and the cable-stayed Centenario Bridge over the Panama Canal. CSI’s software is backed by more than three decades of research and development, making it the trusted choice of sophisticated design professionals everywhere!