Analytical modeling of rectangular SC wall panels
04 Dec 2015 | Publications | Contributor(s): Siamak Epackachi, Andrew Whittaker, Yin-Nan Huang
CENSEIS: Centrifuge and Full-scale Modeling of Seismic Pore Pressures in Sands
30 Jan 2015 | Databases | Contributor(s): Tarek Abdoun, Waleed El-Sekelly, Ricardo Dobry, Sabanayagam Thevanayagam, Marcelo Gonzalez
Centrifuge and full-scale Modeling of Seismic Pore Pressures in Sands
Simulating a Centrifuge Test using the Opensees Framework
17 Dec 2014 | Historical Documents | Contributor(s): Antonios Vytiniotis
This manual describes the basic OpenSees features needed for the simulation of vertically propagating shear waves in a scale model in a centrifuge. GID has been used for pre- and post- processing. For relatively simple configurations (even the one used in this paradigm) a pre-processor might not...
Mini Wave-Flume Coastal Forest Kit
18 Mar 2014 | Learning Objects | Contributor(s): Jennifer L Irish, Robert Weiss, Adrian Santiago Tate, Nicholas Zinck, Leah Potts
This kit will introduce K-12 and undergraduate college students to tsunami flow and the effects that coastal vegetation has on this flow. Three sets of instructions are included to suggest activities and discussion to accompany this kit. The instructions are labeled as...
NEES Instructional Shake Table
13 Mar 2014 | Learning Objects | Contributor(s): Sean Brophy
The NEES Instructional Shake Table (IST) can engage learners in engineering and scientific thinking associate with earthquakes and other dynamic conditions. The IST provides a low frequency force input to a physical model mounted to its platform. The ITS can be used to provide repeatable tests...
Experimental Testing of Precast Concrete Cladding for Building Facade Systems
10 Jan 2014 | Publications | Contributor(s): Kurt McMullin, Eugenia Tai, Tu-An Ma
Since 1998, San Jose State University has conducted research into the seismic behavior of building facade systems, particularly the precast concrete cladding systems also known as architectural precast. This research has combined full-scale experimental studies and component experimental...
A Real Time Hybrid Simulation Demo Code
15 Aug 2013 | Computational Models | Contributor(s): Ge(Gaby) Ou, Shirley Dyke
This is an RTHS simulation example including codes ‘RTHS_DM.mdl’ and ‘Trigger_RTHS_DM.m’. In this example, the concept of RTHS and its representation in simulation is discussed. A single story steel structure with predetermined mass, stiffness, damping ratio...
Direct Simple Shear (DSS) Model
27 Jun 2013 | Computational Models | Contributor(s): Arash Khosravifar, Ross W Boulanger, Rachelle Howell, Xiaoyue Wang
This is an OpenSees model of a simple shear test. The model can predict the drained or undrained responses of sand or clay under cyclic or monotonic loading. Two constitutive models are available for the soil, the Pressure-Dependent-Multi-Yield02 (PDMY02) model for sand and the...
19 Jun 2013 | Learning Objects | Contributor(s): NEES EOT
These plans are for an acrylic dollhouse that can be built for use on a shake table. Lessons can be used with this dollhouse and shake table to demonstrate concepts that are discussed within earthquake engineering lessons.
A Major Research Accomplishment in Geotechnical Earthquake Engineering Simulation
17 Apr 2013 | Citations | Contributor(s): Mahdi Soudkhah
An innovative experimental framework for seismic soil-structure interaction investigation of foundations and structures subjected to a coupled horizontal and vertical ground motion disturbance was developed by Dr. Mahdi Soudkhah at the University of Colorado at Boulder. A series...
Ambassador Program at Howard University overview
11 Apr 2013 | Learning Objects | Contributor(s): Indira Sirjue, Valencia Tayler, Samrakshak Lamichhane, NEES EOT
A power point presentation outlining the activities of the Ambassador Program at Howard University.
Wave absorbing-boundary method in seismic centrifuge simulation of vertical free-ﬁeld ground motion
26 Mar 2013 | Citations | Contributor(s): Mahdi Soudkhah, R.Y.S. Pak
An evaluation of the method of experimental seismic simulation of coupled horizontal and vertical free-field groundmotion by wave-absorbing boundary and centrifuge modeling is presented. By means of a large soil containerwith Ductseal lining and an in-box shake-table system, a series of seismic...
Cargo container research to improve buildings' ability to withstand tsunamis
07 Feb 2013 | Notes | Contributor(s): NEES Media Communications, Marti LaChance
Feb. 7, 2013 | IndiaVisionWeb article. See attached PDF.Ronald Riggs, structural engineer from the University of Hawaii, uses NEES earthquake simulation resources to study cargo container behavior in tsunamis. The research will improve building design in tsunami-prone regions, where large...
Guidelines for Evaluation and Assessment of NEES EOT Learning Experiences
26 Dec 2012 | Learning Objects | Contributor(s): Sean Brophy, NEES EOT
This paper provides guidelines for defining evaluation and assessment methods of the learning experiences used in the Education, Outreach and Training (EOT) efforts of the Network for Earthquake Engineering Simulation (NEES).
Effect of Earthquakes on Nonstructural Elements and Effects on Structural Bracing on the system
07 Nov 2012 | Learning Objects | Contributor(s): Catherine Ellen French, NEES EOT
This learning module was developed at the University of Minnesota. It contains background information from FEMA on how to identify vulnerable nonstructural elements that are likely to cause injury or loss of function if damaged. It focuses on the benefits of bracing in reducing distortion...
K-12 Seismic Design Competition
09 Oct 2012 | Learning Objects | Contributor(s): Kelly Doyle, NEES EOT
This activity introduces K-12 students to earthquake engineering concepts by allowing them to build structures and test them on an educational shake table. The competition is broken down into four different age groups, with separate rules and introductions for each age level. · Grades K-3:...
ACI 369 Rectangular Column Database
22 Sep 2012 | Databases | Contributor(s): Wassim Ghannoum, Balaji Sivaramakrishnan, Santiago Pujol, Ann Christine Catlin, Sumudinie Fernando, Nabeel Yoosuf, Ying Wang
The American Concrete Institute (ACI) committee 369 (Seismic Repair and Rehabilitation) is in the process of updating provisions pertaining to reinforced concrete structures of the American Society of Civil Engineers (ASCE) Standard 41-06 Supplement No.1 (2007) entitled "Seismic Rehabilitation...
Adaptive Reuse of Concrete Cladding Panels
07 Aug 2012 | Poster | Contributor(s): Kurt Michael McMullin, Eugenia L Tai
A NEES project focused on the seismic behavior of precast concretecladding panels generally used as building facades, also known as the PathwaysResearch Project, has just recently completed the testing phase. The testedconcrete panels have limited damage and are largely intact. Rather than...
Ambient and Forced Vibration Testing of a Reinforced Concrete Building Before and After its Seismic Retrofitting
29 Jul 2012 | Publications | Contributor(s): Serdar Soyoz, Ertugrul Taciroglu, Kutay Orakcal, Robert Nigbor, Derek A Skolnik, Hilmi Lus, Erdal Safak
Description of the tests and analysis of the data (paper accepted for publication in the ASCE Journal of Structural Engineering)
Become an Engineer
09 May 2012 | Learning Objects | Contributor(s): NEES EOT
Build a structure to survive a wave. Waves can hurt or kill humans, as well as damage structures like houses, stores, and power plants. The goal of an engineer is to save lives and prevent damage to buildings. Engineers use their creative thinking abilities just as much as their math and science...