NHERI Monthly Recap, February 2018
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Tue Feb 20 09:33:54 CST 2018
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The NCO's Dan Zehner gives a weekly look into the researchers of the NHERI community with DesignSafe Radio podcast<https://designsafe-ci.org/podcast/>. Listen now and subscribe at iTunes, Stitcher, or SoundCloud.
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Upcoming Events
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April 19 - 21
Structures Conference 2018<http://www.structurescongress.org/>
Fort Worth, Texas
Sponsor: ASCE<https://www.asce.org/>, SEI<https://www.asce.org/structural-engineering/structural-engineering/>, Masonry Society<https://masonrysociety.org/>
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June 4 - 6
NHERI Summer Institute<https://www.designsafe-ci.org/learning-center/summer-institute/>
San Antonio, Texas
Sponsor: NHERI ECO<https://www.designsafe-ci.org/facilities/nco/eco/>
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June 10 - 13
Geotechnical Earthquake Engineering and Soil Dynamics Conference V<http://www.geesd2018.org/>
Austin, Texas
Sponsor: ASCE<http://www.asce.org/>
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June 18 - 21
16th European Conference on Earthquake Engineering<http://www.16ecee.org/>
Thessaloniki, Greece
Sponsor: EAEE<http://www.eaee.org/> and ELTAM<http://www.eltam.org/>
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June 18 - 22
International Symposium on Computational Wind Engineering 2018<http://cwe2018.weik.or.kr/>
Seoul, South Korea
Sponsor: WEIK<http://weik.or.kr/> and IAWE<http://iawe.org/>
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June 25 - 29
11th U.S. National Conference on Earthquake Engineering<http://www.11ncee.org/>
Los Angeles, California
Sponsor: EERI<http://www.eeri.org/>
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July 30 - August 3
36th International Conference on Coastal Engineering 2018<http://www.icce2018.com/>
Baltimore, Maryland
Sponsor: ASCE<http://www.asce.org/>
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DesignSafe-CI hosts online events for training resources at DesignSafe-CI Training<https://www.designsafe-ci.org/learning-center/training/>.
Visit our calendar on DesignSafe-CI to see more NHERI Community Events.<https://www.designsafe-ci.org/community/events/>
Catch up with community happenings in NHERI's monthly recap newsletter.
Welcome to the monthly recap! Here's some highlights from around the NHERI-DesignSafe community:
* Lehigh and UC San Diego EFs collaborate on steel collector research
* In Memoriam: Steve Mahin
* SimCenter and UC San Diego implement hybrid shake table tests
* UTSA study examines 2015 Wimberley, Texas, floods
* Time to plan for the NHERI Summer Institute
* Breaking barriers: Hybrid simulation goes multi-hazard
* REU program recruitment effort a big success
* Morgan State teaches STEM concepts with Wall of Wind model
Did you get a chance to read NHERI's quarterly research newsletter? Find it online<https://www.designsafe-ci.org/community/news/quarterly/>. Want a curated list of the week's top hazards engineering news? Subscribe<https://designsafe-ci.us16.list-manage.com/subscribe?u=dc90d9824e5a18416dfe678e8&id=d2f37f2d68>!
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Lehigh and UC San Diego EFs collaborate on steel collector research
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An award-winning team of researchers at the University of Arizona and partnering universities is working to develop buildings that will not collapse under the force of major earthquakes, such as last year's 7.1-magnitude quake in central Mexico and 7.3-magnitude quake near the Iran-Iraq border. The two earthquakes were the deadliest of 2017, killing approximately 900 people combined, flattening hundreds of buildings and leaving tens of thousands of people homeless.
The UA-led research team is turning its attention from vertical to horizontal transfer of forces by examining a less-explored, but critically important, piece of the seismic puzzle: steel collectors. These reinforcements in concrete floor slabs, or in special beams below them, are responsible for horizontally transferring earthquake forces. The partnering NHERI facilities are the University of California at San Diego<https://ucsd.designsafe-ci.org/> and Lehigh University<https://lehigh.designsafe-ci.org/>.
Downward Path for Seismic Energy. Research into seismic building safety has traditionally focused on walls and braces, which form a downward load path to transfer seismic forces through a building's foundation and into the ground.
"You can't out-strength an earthquake, so you actually put fuses - the equivalent of a fuse in your fuse box, a structural fuse - in your frame or wall," explained Robert Fleischman, UA professor of civil engineering and engineering mechanics, and principal investigator for the project.
Read the FULL STORY<https://www.designsafe-ci.org/community/news/2018/nheri-ef-collaborate-steel-collector/>.
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In Memoriam: Steve Mahin
The SimCenter's Steve Mahin passed away on February 9, following a courageous struggle with pancreatic cancer. Steve was an inspiring leader and visionary engineer. He contributed to the community in so many ways. It was his far-reaching imagination that created the SimCenter. We will miss his leadership and his warm friendship. The University of California at Berkeley, where Steve studied and worked, has posted an obituary<http://news.berkeley.edu/story_jump/earthquake-expert-passes-away-at-71/>.
Sanjay Govindjee and Greg Deierlein have been co-directing the SimCenter since Steve became ill this past fall, and they plan to continue as co-directors. The people on the SimCenter team are more committed than ever to fulfilling Steve's, and their, vision.
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SimCenter and UC San Diego implement hybrid shake table tests
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Hybrid simulations involving experimental substructures on the largest shake table in the U.S. were successfully completed through the collaborative effort of hybrid simulation experts from the NHERI SimCenter<https://simcenter.designsafe-ci.org/> and UC San Diego Experimental Facility<https://ucsd.designsafe-ci.org/>. These tests were executed during the commissioning of hybrid simulation capabilities at the NHERI EF.
The real-time hybrid shake table testing involved the numerical simulation of multi-story shear buildings subjected to earthquake loading with the upper story of the hybrid model being tested experimentally and excited by the Large High Performance Outdoor Shake Table (LHPOST) at UC San Diego. Hybrid shake table testing provides an efficient approach for performing parameter studies, by changing the properties and the behavior of the numerical portion of the hybrid model from test to test. The data produced in these experiments is being curated on the NHERI DesignSafe Data Depot<https://www.designsafe-ci.org/data/browser/public/nees.public/>.
As part of this development and commissioning effort, computational expertise and software components from the SimCenter were implemented to extend the capabilities of the UC San Diego EF to enable real-time hybrid shake table testing.
Read the FULL STORY<https://www.designsafe-ci.org/community/news/2018/simcenter-ucsd-hybrid-shake-table-tests/>.
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UTSA study examines causes, consequences of 2015 Wimberley, Texas, flood
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A new study by Chad Furl, postdoctoral research associate, and Hatim Sharif, professor of civil and environmental engineering at The University of Texas at San Antonio, delves into the 2015 Wimberley, Texas floods that destroyed 350 homes and claimed 13 lives. Furl and Sharif researched the factors that led to the catastrophic flooding and shed light on new ways people in flood-prone areas can protect against future tragedies.
On Memorial Day weekend in 2015, the Blanco River rose to a record 40 feet. The swift rise of the water is known as a flash flood, a term familiar to Texans. The Texas Hill Country, where Wimberly is located, is known as "Flash Flood Alley" because it leads North America as the most flash-flood prone region.
The rugged landscape tends to contribute to this moniker, in addition to urbanization. As natural areas become more and more developed, floods become more likely to occur because accumulating rainwater slides off concrete structures with nowhere to go, whereas plants and soil absorb that moisture. Furl and Sharif also say that flash floods are common in Texas due to its two heavy rain seasons in spring and fall that cause the soil to become oversaturated with rainwater.
Read the FULL STORY<https://www.sciencedirect.com/science/article/pii/S2214581817302124?via%3Dihub> in the Journal of Hydrology.
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Time to plan for the NHERI Summer Institute
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NHERI's Summer Institute program provides a fantastic, hands-on introduction to the field of natural hazards engineering and the NHERI network. The three-day workshop is tailored for K-12 educators, engineers and researchers interested in learning more about the field.
The second annual NHERI Summer Institute will be held on June 4-6, 2018, at the University of Texas at San Antonio (UTSA) Downtown Campus.
Topics of the three-day event include:
* The mission of the NHERI program
* Writing a grant proposal
* NHERI network facility capabilities
* Requesting research resources within the NHERI network
* The NHERI Science Plan
* Hands-on computational research and data management
Everyone is welcome to attend. Early career faculty (i.e., non-tenured professors) and early career professionals may apply for travel funding. Local K-12 educators who are interested may also apply for a stipend to cover participation in the program.
Find details and register for the event on the DesignSafe-CI website<https://www.designsafe-ci.org/learning-center/summer-institute/>.
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Breaking barriers: Hybrid simulation goes multi-hazard
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Hybrid simulation is a powerful technique used to examine the behavior of structural systems that may be too large or complex to test in the laboratory. Physical specimens are coupled with computational models, enabling the physical subsystem to be examined under realistic conditions. Hybrid simulation has traditionally been used for earthquake engineering, and a new generation of methods is now being developed for wind and coastal engineering problems. Within the NHERI network, hybrid simulation experts have formed the Multi-Hazard Collaboratory on Hybrid Simulation, called MECHS.
The MECHS research coordination network (https://mechs.designsafe-ci.org) aims to facilitate the scientific advances needed to establish the theory of and expand the capacity for hybrid simulation as it applies to multi-hazard engineering. MECHS will be making resources about hybrid simulation available through the DesignSafe site and will also be hosting a series of workshops over the next several years.
The first MECHS Workshop "Breaking Barriers and Building Capacity" was held on December 12-13, 2017 at the University of California, San Diego<https://ucsd.designsafe-ci.org/>. A group of 40 researchers participated, including multi-hazard engineering researchers, graduate students, international partners and interdisciplinary collaborators. Each participant gave a brief introduction to themselves and their research background. Three discussion groups were held to talk about and identify specific research needs.
Read the FULL STORY<https://www.designsafe-ci.org/community/news/2018/breaking-barriers-hybrid-simulation-goes-multi-hazard/>.
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REU program recruitment efforts a big success
The Education and Community Outreach Committee has worked hard this year to recruit an outstanding cohort of students to participate in NHERI's 2018 Research Experiences for Undergraduates program. This year, there were more than 100 applicants to fill 30 REU positions. The selected students will be notified over the coming weeks.
"The biggest challenge is getting the word out and encouraging students to apply," says Karina Vielma, ECO Committee administrator. "Many students from the 2017 cohort reported they could not believe it was possible for them to conduct research at a state-of-the-art experimental site."
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Morgan State University teaches STEM concepts with Wall of Wind model
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At this year's USA Science and Engineering Festival, faculty and students from Morgan State University's Department of Civil Engineering will be on hand to teach kids about protecting structures from windstorms with some of their favorite toys: Legos.
The annual expo, held Aprll 7 and 8 in Washington, DC, is aimed at stimulating and sustaining interest in STEM subjects - and is attended by thousands of kids, teens and their parents. At the MSU booth, kids get the chance to build a shelter strong enough for prevent a Lego minifigure from being blown away by a simulated wind storm.
Read the FULL STORY<https://www.designsafe-ci.org/community/news/2018/msu-expo-stem-concepts-with-legos/>.
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NEW! Natural Hazards Engineering News
Like reading the latest in natural hazards engineering news and research? Each week, NHERI curates the top hazard engineering stories from around the world and delivers them to your inbox.
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Stay current with NHERI news and events,
posted weekly in our newsroom<https://www.designsafe-ci.org/community/news/newsroom/>.
NHERI programs are funded by the National Science Foundation (NSF)<https://www.nsf.gov/funding/pgm_summ.jsp?pims_id=503259>.
The NHERI Monthly Recap is prepared by the NHERI Network Coordination Office (NSF award #1612144<http://www.nsf.gov/awardsearch/showAward?AWD_ID=1612144>).
All official online NHERI content including monthly and quarterly publication issues
are hosted by DesignSafe-CI<https://designsafe-ci.org/> which is supported by a grant from the NSF (award #1520817<http://www.nsf.gov/awardsearch/showAward?AWD_ID=1520817>).
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