Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
Use this link to report a NEES network security incident
July 21, 2005
This NEESR payload project is to accurately model and control plastic hinging locations in concrete bridge structures through an investigation of actual hinging behavior in large-scale testing of 4-span bridge systems subjected to multiple excitations...
April 24, 2007
This is a repository for storing all raw video files that were uploaded into NEESit YouTube account (http://www.youtube.com/neesit).
October 01, 2004
The ultimate long-term goal is to develop a fundamental understanding of the mechanism of tsunamigenic landslides and subsequent tsunami generation, propagation, and run-up. This would allow for improved assessment and possible mitigation of the landslide...
May 16, 2007
deflection is more problematic. Furthermore, essentially all of the load-displacement relationships currently used are derived from static or extremely slow loadings. Under seismic loading conditions, both dynamic and cyclic effects are present which...
May 23, 2007
NEES 5th Annual Meeting Logistical InformationSnowbird, UtahJune 19-21, 2007The meeting will be held at beautiful Snowbird, Utah, only 29 miles from Salt Lake International Airport. Rooms have been reserved at $90/single and $100 double occupancy.About...
January 10, 2003
Field sites with unique soil characteristics, thoroughly characterized and instrumented. Data from M4+ earthquakes that have been recorded at the field sites is available from this project.
January 03, 2000
The I-5/Gilman Advanced Technology Bridge is being constructed over Interstate 5 to connect the East and West Campuses of UCSD. The bridge is a 137m (450ft) long cable-stayed bridge supported by a 59m (193ft) high A-frame pylon, that uses fiber reinforced...
August 29, 2006
Two centrifuge model tests, Tests 1 and 2, were planned to estimate failure mechanism of piles in the ground behind a quay wall during laterally spreading. Test 1 included three pile groups with different pile caps and pile number, while Test 2 included...
July 13, 2007
August 15, 2008
The aim of this project is to develop the capability for characterizing the detailed geological structure and mechanical properties of individual sites and/or complete basins by means of integrated in-situ field testing techniques, observation of ground...
December 19, 2005
For many years, the design of seismic resistant building structures has had the goal of preventing collapse, and avoiding injury and loss of life in the event of an earthquake. More recently, seismic design practice has sought to reduce structural damage...
September 05, 2007
Project is designed to track the pore pressure generation/dissipation as a function of varying shaking events. These pore pressure regimes are studied for their long term (multiple hours/days) contribution to instability in homogeneous normally consolidated...
August 08, 2005
This dissertation details work conducted by researchers from the University of Texas at Austin aimed toward the development and implementation of a new in-situ liquefaction testing technique. This technique is an active method that may be used to directly...
October 01, 2007
October 09, 2006
The data presented here is from a collaborative research project carried out by researchers from the University of California at San Diego, Stanford University, and the University of Colorado at Boulder. The research objectives were two-fold. One was...
May 02, 2006
The purpose of this experiment is to obtain a data set for evaluating the performance of solitary wave generation in the Tsunami Wave Basin to be used for numerical comparisons. The measurement of free surface and fluid particle velocity were conducted...
October 01, 2006
This project is a NEESR-II award with the aim of developing system behavior factors for frames with steel beams and composite beam-columns (composite frame system). This research also intends to provide practical guidelines for the analysis and design...
December 04, 2007
This project is a repository for data created by the structural health monitoring system deployed on Voigt Bridge.
October 09, 2007
The US Geological Survey (USGS) is collaborating in a seismic-imaging experiment using Thumper with personnel and equipment from the NEES facility at the University of Texas at Austin. The overall goal of this experiment is to provide high-resolution...
May 10, 2005
The framework for a generalized field method to evaluate the shear modulus of soils in the linear and nonlinear strain ranges was developed. The field set-up utilizes a cylindrical, axisymmetric source that, in this work, was simply a drilled shaft....
January 07, 2008
The SASW technique has been used to obtain VS profiles at USGS strong motion sites in the U.S. (e.g., Seattle, the Imperial Valley, and Los Angeles), and this technique has been well validated against other approaches, such as down-hole surveys. The...
February 21, 2008
This research project started with investigating innovative foundations that improve performance of bridges during earthquakes with behavior that is less sensitive to site conditions. The investigators considered a variety of foundation shapes and types...
March 12, 2008
Two recent NEES projects have dramatically increased knowledge about the performance of bridges in earthquakes through shaking table studies at NEES@UNR. The focus of these studies has been to improve understanding about soil-structure interaction on...
Shaking table tests of a 1/4-scale, reinforced concrete bridge with two spans supported by two-column bents were performed using the facilities at NEES@UNR. The purpose of these tests was to gain insight into the system response of the bridge during...
March 01, 2008
There were four braced frame specimens in this special concentric braced frame test program. Each test specimen consisted of a two-story, single bay concentric braced frame which was designed and detailed in compliance with the 2005 AISC Seismic Provisions...