Events
February 21 - 22, 2008 - Hybrid Simulation Workshop at nees@berkeley
February 23, 2008 - OpenFresco Workshop at nees@berkeley
The nees@berkeley Equipment Site is hosting a two day hybrid simulation workshop. Hybrid simulation is a method for examining the seismic response of structures using a hybrid model comprised of both physical and nummerical sub-structures. This workshop on hybrid simulation is for NEES researchers, both current and future.
Webpages:
Workshop, Agenda, Presentations,
and Flyer.
The day after the hybrid simulation workshop,
the nees@berkeley Equipment Site
is hosting a one day
OpenFresco
workshop.
This will be a detailed technical seminar for developers and for system administrators.
OpenFresco is one of the important tools
discussed in the hybrid simulation workshop.
Webpages: Announcement.
Fundamentals of Column Bases and Exposed Seismic Base Design (Cont. of Large Scale Tests & Micromechanics-Based Simulation of Ultra-Low Cycle Fatigue & Fracture in Steel Structures): Phase 3
Test schedule: January 3, 11, 22, 31, & February 11, 2008
PIs: Amit M. Kanvinde (UC Davis) & Gregory G. Deierlein (Stanford University) Graduate Student: Ivan R. Gomez (UC Davis). The aim of the project was to investigate Ultra-Low Cycle Fatigue (ULCF) in large-scale welded steel columns. The extensive experimental study was complemented by detailed continuum-based FEM and micromechanics-based models that capture the fundamental processes of void growth, collapse, and damage responsible for ULCF.
Determining the Live Load Capacity of Bridges Designed to Caltrans Seismic Design Criteria Following a Major Seismic (Design) Event
PI: Bozidar Stojadinovic (UCB) - Graduate Students: Vesna Terzic (UCB) and Nicola Tondini (U. of Trento, Italy). Testing will be performed to evaluate the remaining traffic load capacity of a bridge after an earthquake events. In the November 16 test, a column which had been damaged by applying axial load. The amount of axial load capacity remaing after a controlled amount of leteral load induced demage was measured. These tests will be used to develop the evaluation procudure and modeling guidelines.
August 2, 2007 - Pre-Engineering Partnerships (PEP) students
Students from the PEP program on the U.C. Berkeley campus visited the nees@berkeley Equipment site. They went on a tour of the facility and watched a demonstration of a bridge built out of K'nex being shaken on a small shake table.
July 25 & August 2, 2007 - NSLC Engineering Summer 2007 Program at UC Berkeley
The nees@berkeley Equipment Site introduced over 200 high school students from across the country to basic concepts in earthquake engineering including a lecture, tour and demonstration of the earthquake resistance of structures they built.
June 22, 2007 - Project POSIT - Oakland Teachers Program
April 26 - 27, 2007 - Hybrid Simulation Workshop at nees@berkeley
The nees@berkeley Equipment Site is hosted a two day hybrid simulation workshop. Hybrid simulation is a method for examining the seismic response of structures using a hybrid model comprised of both physical and nummerical sub-structures. This workshop on hybrid simulation is for NEES researchers, both current and future. Workshop, Presentations and Photos.
Saturday, April 21st, 2007 - Cal Day Open House from 1 - 4 pm
Visit the Richmond Field Station to see how earthquake engineers are designing buildings and other structures to withstand the power of earthquakes. Tour our labs that simulate the destructive force of earthquakes. See video presentations and take part in discussions with our engineers.
February - June 2007 - Berkeley High School Intern
Monday, April 16, 2007
Hybrid Simulation of Base Isolated Structures
PI: Steve A. Mahin (UCB) - Graduate Student: Andreas Schellenberg (UCB)
December 21, 2006
First-Ever Real-Time Geographically Distributed Hybrid Simulation Using the Internet PIs: Steve A. Mahin and Gregory Fenves - Graduate Student: Andreas Schellenberg (UCB)
Mr. Jon Lea, with some help from Andreas Schellenberg, successfully conducted the first-ever real-time hybrid simulation over the Internet. The structure was modeled using OpenSees on a portable computer located at the NEES Inc. headquarters in Davis, CA. It had a physical component located at the micro-nees lab of the nees@berkeley Equipment Site. The connection between the computer and the physical models was established through a general-purpose Ethernet connection and managed using the OpenFresco framework. A 32-second long earthquake record was applied to the hybrid model in a simulation that lasted exactly 32 seconds!
Here is a pdf file with some results of the first ever geographically distributed real-time hybrid simulation. [PDF]
For more information, Please go to:
OpenFresco http://neesforge.nees.org/projects/openfresco/
OpenSees http://opensees.berkeley.edu
December 11 & 12, 2006
NEES Hybrid Simulation Workshop
The workshop team, led by Bozidar Stojadinovic, presented course material to the participants, who then conducted a real hybrid simulation experiment using the nees@berkeley Equipment Site.
Presentations and Photos
October 2006 - Tours
EERC & Marsh Open House
June 18-28, July 02-12 & July 16-26, 2006 - Outreach
National Student Leadership Conference Engineering program at UCB.
A group of one hundred and thirty-five high school students from around the country learned about Earthquake Engineering at nees@berkeley Equipment Site in Richmond Field Station, UC Berkeley.
PI: Khalid M. Mosalam (UCB) Graduate Students: Mateas Hube, Timmy Siauw, Tran Ngoc Le and Tarek Elkhoraibi (UCB)
Session I, Session II, and Session III
April 21, 2006 - Tours
Eighth National Conference on Earthquake Engineering Field Trip (8NCEE)
April 24 - 25, 2006
NEES Hybrid Simulation Workshop
This successful workshop introduced numbers of engineers to hybrid simulation, including use of the nees@berkeley Equipment Site hardware portfolio. Participants learned how to process and archive hybrid simulation data.
Presentations and Photos
December 12-13, 2005
NEES Hybrid Simulation Workshop
Attendees reviewed the basics of hybrid simulation design, implementation, and learned how to archive hybrid simulation data.
Presentations and Photos
November 15, 2004
NEES System Wide Grand Opening/Media Open House
November 9, 2004
nees@berkeley Grand Opening Ceremonies
PI: Nicholas Sitar (UCB)
October 2004
Open SEES Navigator released by nees@berkeley researchers
