a lot of months of intensive work, we are comming close to the release of a new
ATENA version 5.4, which represents another step in our
software development. The most important new features are described in our
October newsletter along with a selected successful application example from our
users. We would also like to invite you to our training seminars to visit us
during the comming presentations or exhibitions and to have a look at our latest
papers with other interesting examples or descript-xion of the theorethical
background of ATENA.
Release of ATENA Software
ATENA v5.4 is planned to be released in November!
beta version of ATENA 5.4 will be soon available for testing.
In case you are interested in, please contact us at firstname.lastname@example.org. The
new version brings many new and interesting features based on the suggestion and
feedback of our ATENA users.
now supports also classical 1D beam and 2D shell elements. ATENA was always a
specialized software for detailed reinforced concrete analysis. As such the
emphasis was always on 2D/3D analysis using continuum based elements, which were
enhanced by our specialized 3D beam and shell elements. ATENA users, however,
want to apply nonlinear analysis to large scale structural problems, when
classical beam and shell elements provide an efficient option. They are
formulated as fiber beam elements and layered shells that can be easily combined
with full continuum based 2D/3D elements. In this way efficient models for large
scale structures can be created, while preserving the option to model critical
structural details with full continuum three-dimensional based
model using 2D shell and 1D beam elements showing the moment development in the
beam can be modeled using solid contiunuum based elements or shell or beam
of moments along the main bridge composite steel-concrete beam
features in ATENA Studio:
Studio is our unique software, where our users can immediately see how the
structure responds to the applied actions. Our unique run-time and
post-processing system is now enhanced by the following features:
diagrams of reinforcement quantities such as stresses, strains,
Calculation and visualization of internal forces, i.e. moments, torsion or shear
forces, for beam/shell elements as well as for continuum based elements. This
greatly simplifies the application in design or assessment of existing
- User defined views and visualization parameters can be saved and
shared among various ATENA Studio projects
cracking above the main support, moment evolution and deflection of a composite
steel-concrete bridge analyzed by ATENA
- evolution of prestressing with losses, Bott. - internal crack development and
tendon stresses before failure
modelling of pre-stressing losses:
improved bond model enables very accurate and detailed modeling of pre-stressing
losses due to friction and cohesion in tendon pipes as well as the subsequent
tendon grouting with increased bond properties. Bond model can be activated in
ATENA just by a single mouse click, no need for special interface elements or
other complicated modeling tricks.
at arbitrary locations:
can be now applied at arbitrary locations, i.e. at point, lines or surfaces that
do not need to be part of any geometric entity. This new feature greatly
simplifies the application of complex loading patterns or moving
new tutorials have been developed and are available for download. They provide a
step by step guidance in some of the typical ATENA application areas:
for ATENA Science GiD FRC
- Analysis of fiber reinforced concrete
structures, where one of the main problems the user typically need to solve is
the proper definition of the fiber reinforced concrete material parameters. This
process typically involves an inverse analysis of standard material tests. This
process is in detail described in this tutorial with an application to segmental
development in the analysis of FRC tunnel tubbing
in ATENA model with FRP strengthening
for ATENA Science GiD Strengthening
- Strengthening by carbon fiber rods,
lamellas or sheets is another application domain, where simulation with ATENA
can be extremely useful. There are 4 possible approaches in ATENA for these
problems, and this manual provides a step by step guidance and hands-on
for ATENA Science GiD Construction Process
- Construction process
involves changing of structural geometry or properties during the construction.
ATENA simulation system allows changes both in geometry, loads, boundary
conditions as well as material properties at any time during the
first tutorial covers the application area of bridge construction. ATENA however
supports also the modelling of tunnel construction process. This tutorial is
currently under preparation and will be released before the end of the year.
Please follow the download section on our website to learn about the new
tutorials as they will be released.
are excited about these new developments in ATENA and we look forward to seeing
them working for you in your industrial or research projects!
of a model strengthened by FRP fabric
Flexural Response of Continuous Concrete Slab Strips Strengthened with Near
Alkhalil, Former Teaching Assistant and Tamer
El-Maaddawy, Associate Professor
Dept. of Civil and Environmental
Engineering, United Arab Emirates University
was used for calculation of nonlinear flexural response of continuous RC slab
strips strengthened with near surface–mounted (NSM) composite reinforcement in
either the sagging or the hogging region.
and numerical sagging region
and numerical hogging region
study comprised experimental testing and three-dimensional finite-element (FE)
modeling of eight two-span RC slab strips, 400 × 125 × 3,800 mm each. The amount
of internal steel in the strengthened regions was approximately 30% of that of
the unstrengthened regions. Flexural strengthening with NSM composites improved
the stiffness and load capacity of continuous RC slab strips with no or
insignificant reduction in the deflection at ultimate load. The gain in the
loadcapacity due to strengthening was more pronounced for the slab strips
strengthened in the sagging regions. Flexural strengthening reduced the moment
redistribution ratio of the slab strips.
ratio further decreased by increasing the axial stiffness of the NSM composite
reinforcement in the strengthened regions. The developed FE models provided more
than reasonable prediction of the ultimate load by simulating the nonlinear
structural behavior of the tested slab strips with good accuracy and predicting
strain data not captured experimentally in some specimens. The validated FE
models are considered a valuable and reliable alternative to the laboratory
testing, which is costly, laborintensive, and time-consuming.
steel strain (microstrain)
Advanced User Seminar 2017
users of ATENA software,
would like to invite you to our ATENA Advanced User Seminar
2017. The seminar will take place in Prague, the Czech Republic
on February 8-10 in Czech language and June 14-16, 2017 in English
In 2016 the content of the seminar was rearranged
compared to the previous years. We decided to concentrate on fewer topics, but
provide deeper coverage and more hands-on experience with particular problems.
Based on the feedback from our hotline support we selected several topics, where
we expect that ATENA users could benefit most from more indepth explanation or
- Overview of new ATENA version 5.4.
- Modeling contact problems in ATENA.
- Modeling strengthening of reinforced concrete structures.
- Modeling of construction process in ATENA for bridges and tunnels.
- Modeling of fiber-reinforced concrete structures.
Distributor in Turkey
3e Mimarlık İnşaat ve Taah. Tic. Ltd Şti.
Cad. Önder apt. No: 1 HATAY
Phone: +90 532
376 05 30, +90 326 213 01 07
New Biomechanical Software
agreement signed last month with Research Center of Computational Mechanics,
Inc., Tokyo established Červenka Consulting as a distributor of the new
biomechanical software Mechanical Finder in Europe.
Finder major features:
Build 3D structural model based on CT image.
2. Set up inhomogeneous material
properties based on bone density (≒ CT value).
3. Create models with an
more information, please contact us via e-mail: email@example.com.