Newsletter 1/2009 - May


PDF version of the newsletter


ATENA Advanced User Seminar 2009

We are pleased to invite you to our traditional ATENA Advanced User Seminar 2009. The seminar will take place at the facilities of the Faculty of Civil Engineering at the Czech Technical University in Prague, Czech Republic on September 9-11, 2009. The workshop will be targeted for advanced ATENA users, who want to learn more about the theoretical background of the new ATENA version 4. The main focus will be on the package ATENA Science, which includes a new and robust GiD interface, pre-post/processing and supports new analysis types such as dynamic, eigenvalue, creep, thermal or fire analyses.
You can register on-line in our web: www.cervenka.cz or by e-mail by filling the registration form which you find at the address: http://www.cervenka.cz/news/atena-advanced-user-seminar-2009.

The seminar will cover the following topics:

Photo from Adv. Seminar 08
Day 1: Advanced ATENA topics

Concrete material models
Fiber-reinforced concrete
Reinforcement bond
Interface modeling
Fatigue material
Strengthening
SARA - probabilistic modeling
- reliability analysis

Photo from Adv. Seminar 08
Day 2: ATENA-GiD interface

GiD pre-processing
Running analysis with AtenaWin
Post-processing in AtenaWin, ATENA 3D, GiD
ATENA Science - practical examples


Day 3: Creep, Dynamic, and Fire Analysis

ATENA Science advance analyses

ATENA NEW DEVELOPMENT

We are working hard on bringing the latest discoveries in the advanced numerical modeling of concrete structures to your desktop. We are continuously developing and improving our software. ATENA version 4.1.3 has been recently released with the following new features:

Improved dynamic analysis

The application of seismic accelerogram has been simplified. Accelerations are applied to a moving coordinate system of the model. The main advantage of this approach is that the calculated displacements and velocities are relative to the fundaments. This is also a standard method used by many programs.

Seismic load applied in AtenaWin. Left window: The horizontal acceleration of the top of the dam.
Right window: the deformed shape and horizontal displacements at t=5s.


New features in ATENA GiD


Other fixes and improvements

The reinforcement material can now be limited to tension. This makes it easy to model reinforcement members that are not active in compression.

Updates for all users of ATENA

Current ATENA users with valid maintenance can download an update installation directly from our web site: http://www.cervenka.cz/downloads. Alternatively you can request an installation CD by e-mail.

Your suggestions on ATENA development and language support

We are greatly interested in your comments and suggestions about our ATENA software. It helps us to improve and develop the software such that it meets your expectations and addresses your professional requirements. In this respect we would greatly appreciate if you would follow the link below and answer the short questionnaire (1 page) about ATENA. We plan to introduce a support for other languages and your input would by greatly appreciated.
http://www.cervenka.cz/user-survey

Please do not hesitate to contact us if you want to learn more about the new ATENA version and how it can help you in your work.

OUR CURRENT PROJECTS


Bhabha Atomic Research Centre in India, BARC, has launched an interesting and demanding project on testing a 1:4 scaled model of 540 MW pressurized heavy water reactor containment made of prestressed concrete. ATENA is one of the 16 participants in this project. The aim is to simulate the test and to predict the failure. In January 2009 a pre-test meeting was organized in Bombay where the participants presented and compared their first results. This year the pressure test will be performed by BARC researchers and then our predictions will be compared with the reality
1:4 model of the containment ATENA numerical model cracking pattern and deformations

PUBLICATION


We are proud to continuously publish our results in prominent professional journals and at international conferences. We would be greatly interested in your comments and opinion about our recent scientific publications:

Three Dimensional Combined Fracture – Plastic Material Model for Concrete

Jan Cervenka, Vassilis K. Papanikolaou, Int. Journal of Plasticity, Volume 24, Issue 12, December 2008, ISSN 0749-6419

Software ATENA for Design and Analysis of Concrete and Reinforced Concrete Structures (Software ATENA für Entwurf und Untersuchung von Beton- und Stahlbetonbauten)

Radomir Pukl, Beton- und Stahlbetonbau, Volume 104, Issue 4, April 2009, ISSN 0005-9900

WHERE YOU CAN MEET US?

In the near future it is possible to visit our representatives at the following events and exhibitions where you can learn about more details about our new products and services.

CONCRETE: 21ST CENTURY SUPERHERO (fib)
London, UK, June 22 - 24, 2009

fib and The UK Concrete Society are bringing together leading engineers, designers, contractors and researchers from the world of construction for Concrete: 21st Century Superhero, an international forum to debate and showcase of innovations in concrete design and construction. You can read more on the web: http://www.fiblondon09.com

ICOSSAR 2009
Osaka, JAPAN, September 13-17, 2009

ICOSSAR'09 will encompass aspects of safety and reliability of structures and civil engineering systems. Special focus will be devoted to advanced technologies, analytical and computational methods of risk analysis, probability based design, life cycle cost analysis and damage assessment. We will participated in the Scientific Program of the Conference with the paper Assessment of structural performance considering spatial variability of material properties. More information about the conference you can read on the web:
http://www.sc.kutc.kansai-u.ac.jp/icossar2009

CCC 2009
Baden, AUSTRIA, September 24-25, 2009

The 5th Central European Congress on Concrete Engineering will take place in Congress Casino Baden. The purpose of the 5th Central European Congress on Concrete Engineering, devoted to the subject of "Innovative Concrete Technology in Practice", is to familiarize principals, contractors and planning engineers with state-of-the-art developments in applied research and the findings of construction practice in different countries. The more information you can find on the web:http://www.ccc2009.at/