Thursday, January 27, 2011

Στα ελληνικά οι Ευρωκώδικες από τον ΕΛΟΤ

Την ολοκλήρωση της απόδοσης στα ελληνικά των σειρών Προτύπων ΕΛΟΤ ΕΝ 1990 έως ΕΛΟΤ EN 1999 για το σχεδιασμό κατασκευών («Ευρωκώδικες»), καθώς επίσης και την ολοκλήρωση των σχετικών Εθνικών Προσαρτημάτων σε μορφή τυποποιητικού κειμένου, ανακοίνωσε ο Ελληνικός Οργανισμός Τυποποίησης (ΕΛΟΤ ΑΕ).

Στόχος των Ευρωκωδίκων είναι να θεσμοθετήσουν ένα σύνολο κοινών τεχνικών κανόνων για το σχεδιασμό των κτιρίων και των έργων Πολιτικού Μηχανικού με την προοπτική να αντικαταστήσουν τους διαφορετικούς εθνικούς κανονισμούς των Κρατών -Μελών.

Οι Ευρωκώδικες αναπτυχθήκαν υπό την καθοδήγηση και το συντονισμό της Τεχνικής Επιτροπής CEN/TC250 "Structural Eurocodes". Η γλωσσική και προτυποτεχνική επιμέλεια στην Ελληνική έγινε από την αντίστοιχη Τεχνική Επιτροπή του ΕΛΟΤ ΤΕ 67 «Ευρωκώδικες», περιλαμβανομένων Ειδικών Ομάδων Εργασίας, σε στενή συνεργασία με την Επιτροπή Ευρωκωδίκων που συστήθηκε στο τ. ΥΠΕΧΩΔΕ.

Οι Ευρωκώδικες απαρτίζονται από 10 κύρια Ευρωπαϊκά Πρότυπα που συμπεριλαμβάνουν όλους τους τρόπους δόμησης (από σκυρόδεμα, χάλυβα, ξύλο, τοιχοποιία, γεωτεχνικά έργα και αλουμίνιο), ολοκληρώθηκαν το 2007 και με τη σειρά τους υποδιαιρούνται, εκτός από το πρώτο (ΕΛΟΤ ΕΝ 1990), σε 58 μέρη, στα οποία γίνεται ανάλυση της συμπεριφοράς των κατασκευών (κτιρίων, γεφυρών, δεξαμενών, φραγμάτων, πύργων, αγωγών, καπνοδόχων), στο σεισμό ή / και στην πυρκαγιά.

Κωδικός – τίτλος - αριθμός μερώνΕΛΟΤ ΕΝ 1990 - Ευρωκώδικας 0 «Βάσεις σχεδιασμού» - 1 μέρος
ΕΛΟΤ ΕΝ 1991 - Ευρωκώδικας 1 «Δράσεις στους φορείς» - 10 μέρη
ΕΛΟΤ ΕΝ 1992 - Ευρωκώδικας 2 «Σχεδιασμός φορέων από σκυρόδεμα» - 4 μέρη
ΕΛΟΤ ΕΝ 1993 - Ευρωκώδικας 3 «Σχεδιασμός φορέων από χάλυβα» - 20 μέρη
ΕΛΟΤ ΕΝ 1994 - Ευρωκώδικας 4 «Σχεδιασμός σύμμεικτων φορέων από χάλυβα και σκυρόδεμα» - 3 μέρη
ΕΛΟΤ ΕΝ 1995 - Ευρωκώδικας 5 «Σχεδιασμός ξύλινων φορέων» - 3 μέρη
ΕΛΟΤ ΕΝ 1996 - Ευρωκώδικας 6 «Σχεδιασμός φορέων από τοιχοποιία» - 5 μέρη
ΕΛΟΤ ΕΝ 1997 - Ευρωκώδικας 7 «Γεωτεχνικός σχεδιασμός» - 3 μέρη
ΕΛΟΤ ΕΝ 1998 - Ευρωκώδικας 8 «Αντισεισμικός σχεδιασμός» - 6 μέρη
ΕΛΟΤ ΕΝ 1999 - Ευρωκώδικας 9 «Σχεδιασμός φορέων από αλουμίνιο» - 3 μέρη

Ο Ευρωκώδικας ΕΛΟΤ ΕΝ 1990 παρέχει γενικές πληροφορίες ανεξάρτητες των υλικών που απαιτούνται για το σχεδιασμό κτιρίων. Όλοι οι άλλοι Ευρωκώδικες πρέπει να χρησιμοποιούνται σε συνδυασμό με τον βασικό ΕΛΟΤ ΕΝ 1990.

Για κάθε μέρος Ευρωκώδικα, έχει εκδοθεί επίσης το «Εθνικό Προσάρτημα», το οποίο περιέχει τις «Εθνικά Προσδιορισμένες Παραμέτρους-NDP», οι οποίες παραμένουν ανοικτές για εθνική επιλογή και εκφράζουν τις ειδικές γεωγραφικές, γεωλογικές ή κλιματικές συνθήκες, χρησιμοποιούνται δε για το σχεδιασμό των κτιριακών και λοιπών έργων πολιτικού μηχανικού στην Ελλάδα καθώς και τα συγκεκριμένα επίπεδα προστασίας που ισχύουν στην χώρα.

Τέλος, μέχρι σήμερα έχουν εκδοθεί 46 διορθωτικά κείμενα (corrigenda-AC), τα οποία έχουν επισυναφθεί στα αντίστοιχα Πρότυπα και έχουν εκδοθεί 5 τροποποιήσεις (amendments).

Για περισσότερες πληροφορίες ή παραγγελίες, οι ενδιαφερόμενοι μπορούν να απευθύνονται στις βιβλιοθήκες-αναγνωστήρια του ΕΛΟΤ (Λ. Κηφισού 50, Περιστέρι, τηλ. 210 2120207-210, nik@elot.gr, info@elot.gr, Πλ. Μοριχόβου 1, Θεσσαλονίκη, τηλ. 2310 385570-1, eek@elot.gr).

Saturday, January 15, 2011

The Mid-America Earthquake Center's report on the Maule (Chile) Earthquake of February 27, 2010 is now available

The Mid-America Earthquake (MAE) Center reconnaissance report on the Maule (Chile) earthquake of February 27, 2010 is now available from http://mae.cee.uiuc.edu/publications/2010/10-04.htm. The report includes observations of the MAE Center team on the damaged ports, buildings, bridges, and historical structures. A detailed chapter on engineering seismology develops spectrum compatible ground motions for various sites in Chile that are proposed for use in risk assessment studies. Two bridges and a building structure that exemplified the most commonly observed failures are selected, advanced numerical models are built, and inelastic dynamic analyses are conducted to provide further insight to the field observations. The report also features a dedicated chapter on transportation networks, roads and embankments where the performance is assessed using field data. Another chapter focuses on the role of media after the earthquake and provides useful insight on the response of the affected population to communicate in the aftermath of a disaster.

Friday, January 14, 2011

6th European Workshop on the seismic behaviour of Irregular and Complex Structures (6EWICS)

The 6th European Workshop on the seismic behaviour of Irregular and Complex Structures (6EWICS) will take place on Sep. 12-13, 2011, at the Technion - Israel Institute of Technology in Haifa, Israel.

Please note that the submission date has been moved forward, hence the important dates are as follows:
January 31, 2011: Submission of abstracts;

May 15, 2011: Acceptance of abstracts;
June 30, 2011: Submission of final papers

Abstracts submission should include the title of the paper, a 250 -500 word abstract of the paper and the author or a list of authors if appropriate.  Please be certain to include the following: objective, methodology, results and conclusions. Please also identify the expected presenter. For each author, please include their name, affiliation, mailing address, e-mail, phone and fax numbers.
 

IABSE Conference Cairo 2012

The IABSE Conference ‘Global Thinking in Structural Engineering: Recent Achievements’will be hosted by the Egyptian Group of IABSE and the Egyptian Society of Engineers from
May 7-9, 2012. Participants are invited to submit abstracts in English to the following themes:

1. Structural Engineering as part of Multi-disciplinary Systems
2. Sustainable Development and Structural Engineering
3. Structural Engineering and Renewable Energy Sources
4. Smart Structures, New Materials and Construction Techniques

For more information and submission of abstracts: www.iabse.org/cairo2012

Thursday, January 13, 2011

EUROCODE 8: Background and Applications Workshop “Seismic Design of Buildings” with worked examples, Lisbon, 10-11 February 2011


Eurocode 8 Workshop “Seismic Design of Buildings” with worked examples, co-organized by the Joint Research Center of the European Commission, CEN/TC250/ Sub-Committee 8 and the National Laboratory for Civil Engineering (LNEC). This major European event on dissemination of information for training on the Eurocodes will take place in Lisbon on 10-11 February 2011. This workshop will have emphasis on worked examples and intends to contribute towards the transfer of background knowledge and expertise of Eurocode 8 writers (CEN/TC250/Sub-Committee 8) to potential trainers at national level and Eurocode users. Please find attached the first announcement of the workshop. It is also accessible on http://eurocodes.jrc.ec.europa.eu/showpage.php?id=335 where you can also find additional information on the workshop.
Please note the deadline for registration, 15 December 2010. Interested participants can register online at https://jrc-meeting-registration.jrc.ec.europa.eu .

Wednesday, January 12, 2011

PEER's Guidelines for Performance-Based Seismic Design of Tall Buildings

PEER Center is pleased to announce the release of the “Guidelines for Performance-Based Seismic Design of Tall Buildings” that was developed by PEER’s Tall Buildings Initiative.

The Guidelines present a recommended alternative to the prescriptive procedures for seismic design of buildings contained in standards such as ASCE 7 and the International Building Code (IBC). They are intended primarily for use by structural engineers and building officials engaged in the seismic design and review of individual tall buildings.

Properly executed, the Guidelines are intended to result in buildings that are capable of achieving the seismic performance objectives for Occupancy Category II buildings intended by ASCE 7. Alternatively, individual users may adapt and modify these Guidelines to serve as the basis for designs intended to achieve higher seismic performance objectives.

The Guidelines were developed considering the seismic response characteristics of tall buildings, including relatively long fundamental vibration period, significant mass participation and lateral response in higher modes of vibration, and a relatively slender profile. Although the underlying principles are generally applicable, the Guidelines were developed considering seismic hazard typical in the Western United States.

The Working Group members that prepared the guidelines include: Yousef Bozorgnia (PEER, UC Berkeley)C.B. Crouse (URS Consultants)Ronald Hamburger, Chair (Simpson Gumpertz & Heger)Ronald Klemencic (Magnusson Klemencic Associates)Helmut Krawinkler (Stanford University)James Malley (Degenkolb Engineers)Jack Moehle, Co-Chair (PEER, UC Berkley)Farzad Naeim (John A. Martin & Associates)Jonathan Stewart (UC Los Angeles) View and download the free electronic pdf version of the Guidelines (PEER Report No. 2010/05)

Request a Free Copy of the GuidelinesAs a part of the launch of the new Guidelines document, PEER is offering one free copy of the printed Guidelines to engineering offices located in the United States (while supplies last). To receive your free copy, please submit a request via PEER’s online request form.Online Request Form for TBI GuidelinesNote that only one copy will be sent to each engineering design office, so please coordinate within your firm or office so that only one request is sent. Additionally, all of PEER’s Business and Industry Partners (BIP) have already been sent several copies of the Guidelines and do not need to request another copy. Check if your firm is a PEER BIP. PEER News Alerts

Tuesday, January 11, 2011

Megaquake 10.0 - January 12 History Channel Special Features NEES Projects

The History Channel will present Megaquake 10.0 on Wednesday, January 12, at 9 p.m. Eastern Time.  The two-hour, non-fiction special explores one of the most deadly and perplexing mysteries that surrounds planet earth: huge megaquakes. The largest quake ever recorded was a 9.5 earthquake off of Chile in 1960, but new research shows how even larger quakes close to 10.0 just might be possible. Through interviews with top earthquake experts and cutting edge scientific experiments, the special reveals that more than three billion people on earth are in immediate danger from the next big one and how a real 10.0 might actually happen on US soil - in places you might not expect.  Several NEES laboratories were contacted and interviewed during the production phase including Oregon State University; University of California, San Diego; University of California, Davis; and the University of Buffalo, SUNY. 

Dr. Hermann M. Fritz, Assistant Professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, said, “This documentary will include some of our experiments during fall 2010 at Oregon State University (OSU) with the Tsunami by Landslide project.“  Tom Albrechcinski, NEES@Buffalo site operations manager, said, “NEES@Buffalo provided high-resolution video footage of the projects including NEESWood, Georgia Tech Ports, the commissioning of the UB-NEES Nonstructural Component Simulator (NCS)  "Hospital Room" tests and corresponded by email to clarify content.”  The filmmakers filmed at both the W.M. Keck Center for Active Visualization in the Earth Sciences (KeckCAVES) and the Center for Geotechnical Modeling (CGM) at UCDavis. Dr. Ross Boulanger, NEES@UCDavis PI, is featured in the web short, which will be on the History Channel’s website.

For program details, visit Megaquake 10.0

The History Channel is part of A&E Television Networks (AETN) and is the leading destination for revealing, award-winning, original non-fiction series and event-driven specials that connects history with viewers in an informative, immersive and entertaining manner across multiple platforms.

Thursday, January 06, 2011

NEES/EERI Educational Webinar Series Kicks Off January 14, 2011!

Join Friday, January 14, from 11:30 a.m. to 1:00 p.m. Pacific Time for Performance-Based Seismic Design of Mid-Rise Light-Frame Wood Buildings, the first webinar of the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES)/ Earthquake Engineering Research Institute (EERI) engineering educational series, Reducing Earthquake Losses: From Research to Practice.  To register, click here and follow the prompts using event #666 946 334 and the event password, NEES. The program will summarize key findings of the ground-breaking NEESWood project, suggest design approaches, and discuss forthcoming code implications.  Presenters NEESWood Principal Investigator John W. van de Lindt and Steve Pryor, International Director of Building Systems, Simpson Strong-Tie, will provide a brief overview, describe the major tests on two and six-story full-scale buildings, and explain the SAPWood modeling software. The webinar series is geared for both engineering practitioners and researchers, featuring the outcomes of NEES research projects and highlighting the significance of the results for improved engineering design and construction. Future programs are forthcoming.


Wednesday, January 05, 2011

NEES Research Experience for Undergraduates (REU) 2011 Application

NEES Research Experience for Undergraduates (REU) 2011 Applications Open

Six NEES equipment sites will host REU students in summer 2011: Oregon State; University of California, Los Angeles; University of California, Santa Barbara; University of Illinois, Urbana-Champaign; Lehigh University, and University of Nevada, Reno.  The dynamic 10-week summer research program is geared for upper division undergraduate students interested in civil, electrical or computer engineering, and other fields related to seismic risk mitigation. Students collaborate with graduate students and faculty on NEESR projects.

Candidates must have a minimum GPA of 3.0 for acceptance; NSF limits participation to U.S. citizens and permanent residents of the United States.   Aspirants are asked to include personal educational data, contact information, references, background demographics, identify specific completed engineering and math courses and skill proficiency, respond to three essay questions, and rank the preferred research site out of the six participating locations.  Please encourage your students to apply at REU Program Application.

NEESR researchers who are applying to NSF for REU supplements on their NEESR projects but would like to have their students also participate in the NEEScomm REU program activities should apply by clicking here.

Applications are due no later than 8:00 a.m. PDT on February 28, 2011.


Sunday, January 02, 2011

Αποκατάσταση Μνημείων από την πολυπολιτισμική κληρονομιά της Κωνσταντινούπολης– Πολιτιστικής Πρωτεύουσας της Ευρώπης το 2010

Tο Διατμηματικό Πρόγραμμα Mεταπτυχιακών Σπουδών της Πολυτεχνικής Σχολής του Aριστοτελείου Πανεπιστημίου Θεσσαλονίκης, στο πλαίσιο των δραστηριοτήτων του, οργανώνει Σεμινάριο με θέμα: “Αποκατάσταση Μνημείων από την πολυπολιτισμική κληρονομιά της Κωνσταντινούπολης– Πολιτιστικής Πρωτεύουσας της Ευρώπης το 2010”, το οποίο θα πραγματοποιηθεί στη Θεσσαλονίκη στις 25, 26 και 27 Φεβρουαρίου 2011 στο Αμφιθέατρο «Παναγής Παναγιωτόπουλος» της Πολυτεχνικής Σχολής.
Το σεμινάριο αναφέρεται σε σημαντικά μνημεία όλων των ιστορικών περιόδων της πολυπολιτισμικής κληρονομιάς της Κωνσταντινούπολης, στα οποία έγιναν αποκαταστάσεις κατά τη διάρκεια του έτους της Κωνσταντινούπολης – Πολιτιστικής Πρωτεύουσας της Ευρώπης το 2010.
Για δήλωση συμμετοχής και περισσότερες πληροφορίες παρακαλούμε να αποτείνεστε στη Γραμματεία του Διατμηματικού Προγράμματος Mεταπτυχιακών Σπουδών:
Nανά Tριανταφυλλίδη, Πολυτεχνική Σχολή, Κτίριο Μεταπτυχιακών Προγραμμάτων, 1ος όροφος,
Πανεπιστημιούπολη, 54124 Θεσσαλονίκη
THΛ.: 2310 995559, 995483 (+fax), e-mail : koskina@arch.auth.gr, striant@auth.gr