NEES Nonstructural

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under Grant no.: CMMI-0721399

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[Watch time-lapse video of test-setup]

NEES@UNR

UPCOMING UNIVERSITY OF NEVADA, RENO -

The capstone experimentation in the NEES Nonstructural project will begin in November 2012, using a two-story test bed frame mounted on multiple shake tables at the University of Nevada at Reno (UN-Reno). The testing, under the direction of Principal Investigator Professor Manos Maragakis, who is also the Dean of the College of Engineering at UN-Reno, will subject full-scale partitions, suspended ceilings, and sprinkler piping layouts, to earthquake motions. The tests are designed to investigate the system-level interactions of these nonstructural components using large accelerations.

The dimensions of the test bed structure are 23 feet high by 12 feet wide by 60 feet long.

[Watch animation of test-setup]

The system experiments will be conducted in a multistory building test bed to establish the following:

• response of the nonstructural components, as part of a system under large drifts/accelerations.

• interactions within and between the nonstructural components.

• Interactions between the components and the structure.

• Effects of structural yielding on response of the nonstructural components.

TENTATIVE SCHEDULE OF EVENTS [current as of 12/21/2012]:

- Test-Bed Erection on August 13, 2012

- Start the Construction of Nonstructural Components on October 29th.

Running the Linear Tests:

- Test L-1 : Linear Structure with large area ceiling system using 2" wall angles and pop rivets.

- Test L-2 : Linear Structure with large area ceiling system using Seismic Clips and 7/8" wall angles.

- Test L-3 : Linear Structure with large area ceiling system using Seismic Clips, 7/8" wall angles, and seismic expansion joints.

- Test L-4 : Linear Structure with large area ceiling system using Seismic Clips, 2" wall angles, and seismic expansion joints.

- Test L-5 : Linear Structure with small area ceiling system.

- Test L-6 : Linear Structure with small area ceiling system and heavy tiles.

Running the Nonlinear Tests:

- Test NL-1 : Nonlinear Structure with small area ceiling system.

- Test NL-2 : Nonlinear Structure with large area ceiling system using 2" wall angles and pop rivets.

- Test NL-3 : Nonlinear Structure with large area ceiling system using Seismic Clips and 7/8" wall angles.

Downloads:

Loading protocol for linear experiments (Test L-1 through Test L-5)

Summary report of 1st experiment (Test L-1)

Summary report of 2nd experiment (Test L-2)


TESTING UPDATE:

Testing has begun at the University of Nevada, Reno on the two story structure extending across three shake tables.

The link to the webcast is mms://newscast.ce.unr.edu/lssl/


(Note the viewer requires Windows Media Player, so the viewer will not play on a Mac computer).

Photos and videos from testing to date may be found the Engineering Lab's account on Facebook at: https://www.facebook.com/EQSimLabUNR

Laboratory video feeds may be accessed from:

http://neestpm.ce.unr.edu/portal?section=local_video


Upcoming Tests:

LT-5 is scheduled for 1/29 and 30.

LT-6 is scheduled for 2/6 and 7

NL-1 is scheduled for 2/21 and 22

NL-2 is scheduled for 3/22 and 23

NL-3 is scheduled for 4/22 and 23



For more information, visit: NEES@UNR


NEES Nonstructural report series:

MCEER-10-0004 - Modeling and Seismic Evaluation of Nonstructural Components: Testing Frame for Experimental Evaluation of Suspended Ceiling Systems, by A.M. Reinhorn, K.P. Ryu and G. Maddaloni (6/30/10)

MCEER-11-0005 - Experimental Seismic Evaluation, Model Parameterization, and Effects of Cold-Formed Steel-Framed Gypsum Partition Walls on the Seismic Performance of an Essential Facility, by R. Davies, R. Retamales, G. Mosqueda and A. Filiatrault [view all]



Hard copies of this report are also available through the MCEER publications catalog at:
http://mceer.buffalo.edu/publications/catalog.html.


Nonstructural Issues Related to the Region's Risk

by Prof. Tara Hutchinson (UC San Diego)

[view presentation]

Nonstructural Project Team Meeting held on April 23, 2010 at the University at Buffalo, SUNY - including live demonstration of pipe testing in SEESL lab.
[read more]

Test video from the NEES@Buffalo site showing good behavior of a slip track - This time lapse video shows slippage of the top track of a wall specimen.
[download video] ~ 8 MB

Preliminary Project Results of Subsystem and Component Experiments
NCS Subsystem Experiments on Partition Walls [more]

The vision of this Grand Challenge research project is to significantly enhance the seismic resilience of buildings and communities, by providing practicing engineers and architects with verified tools and guidelines for the understanding, prediction and improvement of the seismic response of the ceiling-piping-partition nonstructural system. [more]

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last updated 03.22.13