High Rise Buildings were inconsiderable for many years in our country as it was not considered safe but ETABS is an earthquake resistant software that ensures safety of high-rise building and can be built anytime or anywhere. 1.Where do we come in? ETABS caters to multi-story building analysis and design. It offers all engineering activities, from analysis to design completion. Modelling tools and templates, codebased load prescriptions, analysis methods and solution techniques, all coordinate with the grid-like geometry unique to this class of structure. 2. Customizable Graphical User Interface with One Screen and Multi-Screen Views: There is no limit to the number of model windows, model manipulation views, and data views, and an advanced GUI. 3.Analysis – Static Analysis P-Delta Analysis Dynamic analysis Response Spectrum Time History Modal Cases Eigen and Ritz Vector Robust Nonlinear Tools Staged Construction 4. Performance Based Design Fast nonlinear analysis – Steel and concrete material models with performance levels Steel and concrete fiber models for shear walls and columns Hysteretic Stiffness and strength degradation 5.Output and Display Tabular Results Shell force and stress Deformed shape and contours Reaction Diagrams Default and user Customized reports 6.Non-Linear Hinges: Hinges may be assigned (uncoupled) to any of the six DOF. Post-yield behavior is described by the general backbone relationship shown. For nonlinear pushover, and nonlinear direct-integration time-history analyses, users may simulate post-yielding behavior by assigning concentrated plastic hinges to frame and tendon objects. 7.Staged Construction Nonlinear effects such as large deflections, yielding and gap-opening and closing. Time-dependent, shrinkage and strength-change effects will all so be considered in the construction of a model. 8.Pushover Analysis The nonlinear layered shell element enables users to consider plastic behavior of concrete shear walls, slabs, steel plates and other finite area elements in the pushover analysis. Force-deformation relations are defined for steel and concrete hinges. The hinge and fiber hinge option based on stress-strain is an extension of ASCE-13. 9. How ETABS Tackles Performance Based Design? ETABS Ultimate gives user the option to either define the hinge property or to use auto generated. Not only that, with ETABS now you can convert a site-specific response (RMS) to equivalent time history in real-time. 10. Stable and Fast Nonlinear Analysis (FNA) Implemented for PBD PBD is an attempt to capture the of a structure by explicitly modelling and evaluating post-yield ductility and energy dissipation when subject to earthquake ground motions. The fundamental component is nonlinear dynamic analysis where an attempt is made to capture the real behavior of the structure by analyzing how it reacts in the wake of an earthquake. 11. Steel and Concrete Fibre Models for Shear Walls. https://csiespl.com/product-deta

1. 1 CE&CR October 2022
ETABSandHigh-RiseBuildingsin2022
High Rise Construction Construction Technology
W
e often ask ourselves what
will be the future of structural
engineering in India?
High rise buildings were not considered
safe for public use for quite a lot of years.
However, with such advances in technology
and education, we as engineers have
successfully engineered our way into
earthquake resistant high-rise buildings.
Modern high-rise buildings are now
safer and more reliable. They can be built
anywhere, at any time due to their reduced
vulnerability and simplified structure.
Where Do We Come In?
We are not just any another software
company, we are the epitome of structural
and bridge engineering software. Our aim
is to make the transition of knowledge
between a human and a computer
as smooth as possible. ETABS is an
engineering software product that caters
to multi-story building analysis and design.
Modelling 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. ETABS comes
default equipped with Indian
Standard codes. Basic or
advanced systems under
static or dynamic conditions
may be evaluated using
ETABS. The latest ETABS offers
unmatched 3D object-based
modelling and visualization
tools, blazingly fast linear
and nonlinear analytical
power, sophisticated and
comprehensive design
Analysis
-
- Static Analysis
-
- P-Delta Analysis
-
- Dynamic analysis
-
- Response Spectrum
-
- Time History
-
- Modal Cases
-
- Eigen and Ritz Vector
-
- Robust Nonlinear Tools
-
- Staged Construction
Performance Based Design
-
- Fast nonlinear analysis
-
- Steel and concrete material models
with performance levels
-
- Steel and concrete fiber models for
shear walls and columns
-
- Hysteretic Stiffness and strength
degradation
Output and Display
-
- Tabular Results
-
- Shell force and stress
-
- Deformed shape and contours
-
- Reaction Diagrams
-
- Default and user Customized reports
Non-Linear Hinges
For nonlinear pushover, and nonlinear
direct-integration time-history analyses,
users may simulate post-yield behaviour by
assigning concentrated plastic hinges to
frame and tendon objects. Hinge property
for a beam is shown in the following page.
Plasticity may be associated with force-
displacement behaviours (axial and shear)
or moment-rotation (torsion and bending).
Hinges may be assigned (uncoupled) to
any of the six DOF. Post-yield behaviour
is described by the general backbone
relationship shown.
capabilities for a wide-range of materials.
Along with it, it provides insightful graphic
displays, reports, and schematic drawings
that allow users to quickly understand
analysis and design results.
The software offers all engineering
activities, from analysis to design
completion. 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.
Customizable Graphical User
Interface with One Screen
and Multi-Screen Views
ETABS offers a single seamlessly
integrated user interface to do the building
system modelling, analysis, design and
reporting. There is no limit to the number
of model windows, model manipulation
views, and data views. An advanced GUI
makes the modelling, analysis and design
very simple!

2. CE&CR October 2022 2
High Rise Construction Construction Technology
CSI Software automatically limits
negative slope to 10% of elastic stiffness,
though overwrite options are available.
For informational purposes, additional limit
states (IO, LS, CP) may be specified which
are reported in analysis, but do not affect
results. Unloading from the point of plastic
deformation follows the slope of initial
stiffness.
Staged Construction
Incremental construction sequence
modelling and loadings can be modelled in
ETABS. Nonlinear effects can be considered
such as large deflections, yielding and gap
opening and closing. Time-dependent
creep, shrinkage and strength-change
effects will all so be considered.
Pushover Analysis
Pushover analysis features in ETABS
include the implementation of ASCE-13
and the hinge and fibre hinge option based
on stress-strain. The nonlinear layered shell
element enables users to consider plastic
behaviour of concrete shear walls, slabs, steel
plates and other finite area elements in the
pushover analysis. Force-deformation relations
are defined for steel and concrete hinges.
How ETABS Tackles Performance
Based Design?
Performance based design
is non-linear analysis performed on existing
building or for new building to calculate
the performance level of the building for
the anticipated ground motion in that area.
ETABS Ultimate performs PBD better than
ever with giving user the option to either
define the hinge property or to use auto
generated. Not only that, with ETABS now
you can convert a site-specific response
spectrum to equivalent time history.
1. Stable and Fast Nonlinear Analysis
(FNA) Implemented for PBD
The fundamental component of PBD
is nonlinear dynamic analysis where
an attempt is made to capture the real
behaviour of the structure by explicitly
modelling and evaluating post-yield
ductility and energy dissipation when
subjected to earthquake ground motions.
2. Steel and Concrete Fibre Models for
Shear Walls and Columns
The fibre hinge model is more accurate
in that the nonlinear material relationship
of each fibre automatically accounts for
interaction, changes along the moment-
rotation curve and plastic axial strain.
Fibre hinges are ideal for dynamic behaviour
since they capture nonlinear hysteretic effects.
3. Performance Check: Greater Control
of Entire Model
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.

3. CE&CR October 2022 3
High Rise Construction Construction Technology
Cross-Product Development
The CSI API is currently available for
ETABS, SAP2000, SAFE and CSiBridge.
To maximize your development efforts,
the CSI API has been made as consistent
as possible between the products to allow
tools and applications created using the CSI
API to be adapted easily for all CSI products.
Starting with ETABS v18, SAP2000 v21, SAFE
20 and CSiBridge v21, it is now possible to
*Software and Customer Care are two different
products
ETABS supports
almost all the industry
standards for importing
and exporting data
making the transition
from one application to
other easier for you!
The API is compatible
with most major
programming languages,
including Visual Basic
for Applications (VBA),
VB.NET, C#, C++, Visual
Fortran, Python, and
Matlab.
CSiXCAD, a CSI-developed
plug-in for AutoCAD®, ZWCAD® and
BricsCAD®, streamlines drawing
production by interacting with
SAP2000 and ETABS directly.
CSiXCAD provides a live link
between structural models defined
and maintained in SAP2000
and ETABS and the drawings
documenting them in the CAD
software. CSiXCAD generates a full
3D model and generates an initial
set of drawings automatically that
can then be refined within the CAD
software.
develop cross-product API tools that work
with all four products. This allows you to
write the code once and use.
CSI Engineering Software Private Limited
is the exclusive channel partner of Computers
and Structures Inc, Walnut Creek, USA in
India, Nepal and Bhutan. We will not only
provide you with the industry leading
software but also an extraordinary
customer support for all your problems. *
Lakshay Kumar
Structural Engineer
CSI Engineering Software Pvt. Ltd.
www.csiespl.com
For further information,