About ETABS
ETABS is the short form of ” Extended Tri – dimensional Analysis of building System”. ETABS is famous product of CSi which is used for structural analysis specifically building structure and also marketed by itself CSi America (Computers and Structures, Inc). ETABS is a leading software for building structure analysis and most liked by user world – wide in structural engineering analysis and design software specially for structural and earthquake engineering.
ETABS user interface is so simple and user-friendly work on a single user interface to perform all thing such as Modelling of structure, design, analysis and Documentation. In new update a model explorer option is available for quick access to objects, properties, and forms to use in analysis which make easier. A hardware accelerated graphics direct X integrated to allow for path defining of models with fly-throughs and fast rotations.
What Can Do ETABS?
1. Slab Design
Reinforced concrete slabs or foundations can now be designed in the ETABS (2016 or Later). Slab design can be either by strip-based or FEM based. Punching shear design checks are also automatically performed.
Automated Calculation of Foundation
ETABS perform automated calculation of foundation spring properties from soil profile data. Automatically define vibration analysis paths on floor slabs, along with parameters defining demand and capacity. Automated time-history analysis is performed for each case.
Compliance Major International Design Codes
Full Compliance to Eurocodes with Singapore National Annex, and major international design codes for concrete, steel, and composite sections.
Full 3D FEM Analysis
Full 3D finite element analysis considers the stiffness of slabs, beams, columns, and wall elements all together and thus providing most accurate FEM Results.
ETABS is Blazing Fast
ETABS was the world’s best structural software which widely admitted to offer seismic analysis capabilities of 3D buildings. With the help of ETABS you can enhance your work faster and design the building components and frames for all international design codes and different materials when considering different load combinations. Faster evaluation of the analysis model when previously meshed shell objects do not need to be re-meshed. Also minimize size of the final results stored for direct-integration time-history load cases.
Sequential Construction Analysis
Nonlinear staged-construction analysis to account the effect of sequential construction or demolition. It allows changes in member properties, loads, and may also consider effects of time-dependent material properties such as concrete strength, creep, and shrinkage.
Automated Performance Based Design
Performance-Based Design is a higher jump to improvement of design and analysis concept and it is more safer than traditional process and represents the future of earthquake engineering. This new procedures will more effective and reliable method to assure that the design will meet a desired performance during a providing seismic data.
Industry Standard for all Major Building / Structure Projects
With proven track record, it’s the most trusted analysis and design software by major consultants all over the world.
FEATURES OF ETABS
Modelling
ETABS has lots of templates integrated which helps for quick start a new model. In these templates’ user has the ability to define grid and grid spacing own way, define number of stories, also show the default structural sections, slab and drop panel sections, and define uniform loads mainly dead loads and live loads as required.
View and redesign analytical model with accuracy. Draw the plans and elevation views of structures automatically generated at every level with clarity. In ETABS, grids can be defined as our requirement there is no limit to the number of grid in model and can be define as in default cartesian quadrants, cylindrical, or in any general free-form grid systems, and they can be rotated in any direction or placed at any origin within the model.
Wide selection of drawing and drafting utilities is built into ETABS to improve the engineer’s modelling. Users will find that many of the standard shortcuts and controls are also available in ETABS. Designer can create elevation sections as own requirement or their desire by using updated developed elevation feature. This is new feature in ETABS. Output data from ETABS can be viewed and edited using on-screen dockable tables. Which is more useful for defining a model from spreadsheets or viewing analysis or design results.
Building Components
ETABS offer to easily design using the new tower feature and also allows to define individual storey level and grid system for different building structures within the same ETABS model.
ETABS provide many linking elements of standard building components such as Beams, and columns are frame elements of building component that can be straight or curved. Beam-column are subjected to different type of loading such as axial loading, transverse loading, biaxial bending, torsion, and biaxial shear deformations. ETABS has a built-in library of standard concrete, steel, and composite section properties for Beams, column and braces either prismatic or non-prismatic and built up steel sections can be easily defined by using Section Designer for more complex sections.
In ETABS walls, floors, and ramps which are covers component of building are categories in Shell elements. A separate feature added in ETABS layered shell element that considers mixed material composite behaviour, as well as nonlinear material behaviour options for each layer based on stress-strain, with shearing behaviour considered for rebar layered shell sections.
Loading
In ETABS seismic and wind load automatically apply based on various domestic and international codes. Supported codes in ETABS – ASCE 7-10, ASCE 7-05, ASCE 7-02, AS/NZS 1170-2002, GB50011-2010, Eurocode 8 2004, IS 1893-2002, Italian NTC-2008, NBCC-2010, NBCC-95, NBCC-2005, Turkish Seismic Code-2007, NZS 1170-2004, BOCA-96, NEHRP-97, UBC-94, UBC-97, UBC-97 Isolated.
ETABS is advanced when it comes to assigned loads. ETABS provide easy platform for designer for any type of loading condition either uniform or non-uniform surface loads can be assigned in any direction (Not only for Vertical or Lateral loading).
In ETABS can be modeled for sequence loading (Time dependent loading) and continuous construction. When consider the nonlinear effects on loading, it is affect the significant change such as large deflections, yielding in lateral member and also create large gap opening and closing. Also taken into account the time-dependent load effect such as creep, shrinkage, and changes in strength.
Analysis Based Features
ETABS offer detailed analysis of structure easily and accurately, with time savings
Dynamics Analysis
ETABS dynamic analysis capabilities include model-
- Dynamics Overview
- Response Spectrum Analysis
- Time History Analysis
- Linear Modal Time History
- Linear Direct Integration Time History
P-Delta Analysis
Directly account for second-order effects such as P-delta effect to account for geometric non-linearity for global and/or local effect. P-Delta analysis is a process to analyze the approximate analysis of external effects for the structure component. In P-delta analysis also consider the non – linear load combination and their effects. P-delta analysis is done for every element of structure and are seamlessly consideration of their effects into analysis and design.
Buckling Analysis
Dynamic analysis can be used for modelling more complex buckling, such as follower-load problems buckling is a mathematical instability, leading to a failure mode. Basically buckling is generate on vertical component of structure, and it means sudden sideways deflection due to axial load.
Pushover Analysis
Pushover analysis is a non-linear, static structure analysis, which enables presenting structure behaviour caused by different types of loads resulting from an earthquake. Pushover analysis features in ETABS include the implementation of FEMA 356 and the hinge and fibre hinge option based on stress-strain.
Nonlinear Effect
In ETABS can be modelled for nonlinear effect such as yielding, expansion gap, huge deflection for incremental construction. And also taken into account of creeping, shrinkage, and strength-change.
Different Load Combinations
ETABS offers for user can change load cases and combinations according to physical aspect at building location.
Design Based Features
ETABS provides fully integrated system for different type of frame members such as steel frame, concrete frame, combination of column and beams, walls, shear wall calculation of reinforcement for both overturning wall shear, steel joist and all other building component.
Documentations
Create the document report of designed project using report generator features, produce the report content in a table format, also generate the model definition information, and details of analysis and design results also in tabulated format. You can edit the details by editing the report, and show in 3D modeling also. Reports are viewable within ETABS with live document navigation connected to the Model Explorer and directly exportable to Microsoft Word.
Import and Export
ETABS supports wide range of formats standards for importing and exporting data. You can export/import data to/from Autodesk REVIT, AutoCAD, CIS/2, IFC, and SDNF are all supported. And you can also export of a model to a Microsoft Access database.
