DesignSafe Radio

Pedro Fernandez-CabanAssistant ProfessorFlorida A&M University-Florida State UniversityCollege of Engineering Episode 1: Designing roofs to resist hurricane windsWind engineer Pedro Fernández-Cabán conducts experiments at the NHERI University of Florida wind tunnel, trying to discover how to prevent roof failure in low-rise buildings during hurricanes. In this episode he describes how he uses a special component of the UF wind tunnel that creates large and long-lasting wind gusts: the Flow Field Modulator.See it in action: a cell from the Flow Field Modulator. Hold your ears! https://www.youtube.com/shorts/ErHtAUU8Wns Subscribe to the DesignSafe Radio audio podcast! Apple: https://podcasts.apple.com/us/podcast/designsafe-radio/id1267927535 Stitcher: https://www.stitcher.com/show/designsafe-radioSpotify: https://open.spotify.com/show/2Vn6sM7YP28aYgVUqjV5Vu

Episode 2: StEER reconnaissance: how does it work?StEER’s Stephanie Pilkington covers virtual damage assessments, travel and data-sharing logistics, and the business of deciding the types of damage data to collect. Field-mission complexities include coordinating w/local authorities and EM teams – and federal agencies like FEMA, the Army Corps of Engineers, and in the case of hurricanes, NOAA (the National Oceanic and Atmospheric Administration). Visit the StEER website https://www.steer.network/ Join StEER on the NHERI Slack board: https://www.designsafe-ci.org/community/slack-online-collaboration/ Follow StEER leaders on Twitter:Stephanie Pilkington (@PhDisaster_) UNC engineer David Rouche (@auburn_windengr) Auburn University wind engineer Interested in extreme events recon and research? Follow NHERI Extreme Events on Twitter: @NHERI_EER Keywords: extreme events, engineering reconnaissance, perishable data, natural hazards Subscribe to the DesignSafe Radio audio podcast! Apple: https://podcasts.apple.com/us/podcast/designsafe-radio/id1267927535 Stitcher: https://www.stitcher.com/show/designsafe-radioSpotify: https://open.spotify.com/show/2Vn6sM7YP28aYgVUqjV5Vu

Episode 1: Post event reconnaissance with StEER, the Structural Engineering Extreme Events Reconnaissance network Engineer and UNC professor Stephanie Pilkington introduces the StEER network, a group of volunteer experts who perform post-event recon missions after extreme events like hurricanes and earthquakes. Learn about StEER data collecting and how you can get involved. Visit the StEER website https://www.steer.network/ Connect with StEER leaders on Twitter:Stephanie Pilkington (@PhDisaster_) UNC engineer David Rouche (@auburn_windengr) Auburn University wind engineer David Prevatt (@DavidPrevatt2) U Florida wind engineer Interested in extreme events recon and research? Follow NHERI Extreme Events on Twitter: @NHERI_EER Keywords: extreme events, engineering reconnaissance, perishable data, natural hazards Subscribe to the DesignSafe Radio audio podcast! Apple: https://podcasts.apple.com/us/podcast/designsafe-radio/id1267927535 Stitcher: https://www.stitcher.com/show/designsafe-radioSpotify: https://open.spotify.com/show/2Vn6sM7YP28aYgVUqjV5Vu

Reid Zimmerman, PE, SETechnical Director, KPFF Consulting EngineersTwo approaches to engineering. For the NHERI Tallwood research project, practicing engineer Reid Zimmerman has been working with engineers in academia to produce a full-scale, 10-story wood building. The Tallwood structure is an experimental specimen that also looks and functions like a “real,” engineer-designed building. In this episode, Zimmerman talks about working with fellow engineers in the “applied research” capacity. KPFF Consulting https://www.kpff.com/ Tallwood Design Institute https://tallwoodinstitute.org

NHERI Tallwood Megaproject: a research and industry partnership. DesignSafe Radio host Dan Zehner catches up with Jeff Berman, NHERI Tallwood co-PI and earthquake engineer from the University of Washington. Berman explains how “mega-projects” like Tallwood simply can’t be done without significant collaboration between academia and industry experts at companies such as Simpson Strong-Tie, Swinerton and others with expertise in building construction, engineering, and mass timber design. The NHERI Tallwood project is funded by the National Science Foundation, with support from many industry partners. The shake table experiment is slated for early April, 2023. Follow the NHERI Tallwood project via the live video stream at UC San Diego: http://nheri.ucsd.edu/video/. More #NHERITallwood partners on Twitter: @NHERI_UCSD @UCSanDiego @UCSDJacobs @NSF @slpei @commresilience @MinesCEE @coschoolofmines @CEMCO_steel @csinconline @strongtie @TechGlassProd @uwengineering #NHERITallwood #CLT #Crosslaminatedtimber #massTimber #rockingwalls #naturalhazards #resilience #NSFfunded #earthquakeEngineering #NSFStoriesGet the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ Looking for earthquake shaking data? Visit the NHERI DesignSafe Data Depot, a public repository of natural hazards research data. https://www.designsafe-ci.org/data/browser/public/ On Twitter: Follow Shiling Pei (@slpei), Principal Investigator for #NHERITallwood. While you’re at it, follow NHERI DesignSafe (@NHERIDesignSafe) for all things related to natural hazards engineering. DYK? UC San Diego Jacobs School of Engineering is home the world’s largest outdoor shake table. It’s called LHPOST, the Large High-Performance Outdoor Shake Table.

EPISODE 3NHERI Tallwood: Testing earthquake performance of mass timber productsIn our final episode with NHERI Tallwood co-PI Jeff Berman, we learn about some of the wood products used in this 10-story wood structure — such as mass-plywood panels, cross-laminated timber, and laminated veneer lumber. Industry partners like Boise Cascade and Freres Engineered Wood have donated many mass-timber components, wanting to discover if they are resilient to earthquake loading.“This ten-story building has just about every type of mass timber that is currently made in it.”-- Jeff Berman Here’s a list of industry partners working with the NHERI Tallwood team, including wood product manufacturers: http://nheritallwood.mines.edu/collaboration.html @Boise_Cascade @NHERI_UCSD @UCSanDiego @UCSDJacobs @NSF @slpei @commresilience @MinesCEE @coschoolofmines @uwengineering #NHERITallwood #CLT #Crosslaminatedtimber #CLT #massTimber #naturalhazards #resilience #NSFfunded #earthquakeEngineering #NSFStoriesGet the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ DYK? UC San Diego Jacobs School of Engineering is home the world’s largest outdoor shake table. It’s called LHPOST, the Large High-Performance Outdoor Shake Table.

NHERI Tallwood: Rocking walls in tall buildings. In our second episode with NHERI Tallwood co-PI Jeff Berman, we nerd out on “rocking walls.” How do these seismic-protection systems keep tall structures safe during earthquake shaking? The NHERI Tallwood project is funded by the National Science Foundation, with support from many industry partners. Follow the NHERI Tallwood project via the live video stream at UC San Diego: http://nheri.ucsd.edu/video/. More #NHERITallwood partners on Twitter: @NHERI_UCSD @UCSanDiego @UCSDJacobs @NSF @slpei @commresilience @MinesCEE @coschoolofmines @CEMCO_steel @csinconline @strongtie @TechGlassProd @uwengineering #NHERITallwood #CLT #Crosslaminatedtimber #massTimber #rockingwalls #naturalhazards #resilience #NSFfunded #earthquakeEngineering #NSFStoriesGet the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ Looking for earthquake shaking data? Visit the NHERI DesignSafe Data Depot, a public repository of natural hazards research data. https://www.designsafe-ci.org/data/browser/public/ On Twitter: Follow Shiling Pei (@slpei), Principal Investigator for #NHERITallwood. While you’re at it, follow NHERI DesignSafe (@NHERIDesignSafe) for all things related to natural hazards engineering. DYK? UC San Diego Jacobs School of Engineering is home the world’s largest outdoor shake table. It’s called LHPOST, the Large High-Performance Outdoor Shake Table.

NHERI Tallwood Megaproject: a research and industry partnership. DesignSafe Radio host Dan Zehner catches up with Jeff Berman, NHERI Tallwood co-PI and earthquake engineer from the University of Washington. Berman explains how “mega-projects” like Tallwood simply can’t be done without significant collaboration between academia and industry experts at companies such as Simpson Strong-Tie, Swinerton and others with expertise in building construction, engineering, and mass timber design. The NHERI Tallwood project is funded by the National Science Foundation, with support from many industry partners. The shake table experiment is slated for early March, 2023. Follow the NHERI Tallwood project via the live video stream at UC San Diego: http://nheri.ucsd.edu/video/. More #NHERITallwood partners on Twitter: @NHERI_UCSD @UCSanDiego @UCSDJacobs @NSF @slpei @commresilience @MinesCEE @coschoolofmines @CEMCO_steel @csinconline @strongtie @TechGlassProd @uwengineering #NHERITallwood #CLT #Crosslaminatedtimber #massTimber #rockingwalls #naturalhazards #resilience #NSFfunded #earthquakeEngineering #NSFStoriesGet the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ Looking for earthquake shaking data? Visit the NHERI DesignSafe Data Depot, a public repository of natural hazards research data. https://www.designsafe-ci.org/data/browser/public/ On Twitter: Follow Shiling Pei (@slpei), Principal Investigator for #NHERITallwood. While you’re at it, follow NHERI DesignSafe (@NHERIDesignSafe) for all things related to natural hazards engineering. DYK? UC San Diego Jacobs School of Engineering is home the world’s largest outdoor shake table. It’s called LHPOST, the Large High-Performance Outdoor Shake Table. Jeffrey BermanProfessor of Civil and Environmental EngineeringUniversity of Washington https://www.ce.washington.edu/facultyfinder/jeffrey-w-berman

U of Nevada earthquake engineer Keri Ryan shows us the external wall units on the 10-story NHERI Tallwood building: spandrels with ribbon windows and glass curtain walls, called mullions. Architects as well as engineers want to see how such non-structural elements perform under earthquake loading. During the March 2023 shake table test, more than 750 sensor channels will record behaviors like drift, acceleration, and joint slip and movement. Follow the NHERI Tallwood project with the live video stream at UC San Diego: http://nheri.ucsd.edu/video/ Find Professor Keri Ryan on LinkedIn: https://www.linkedin.com/in/keri-ryan-29332399/ Looking for earthquake shaking data? Visit the NHERI DesignSafe Data Depot, a public repository of natural hazards research data. https://www.designsafe-ci.org/data/browser/public/ On Twitter? Follow Shiling Pei (@slpei), Principal Investigator for #NHERITallwood. While you’re at it, follow NHERI DesignSafe (@NHERIDesignSafe) for all things related to natural hazards engineering. More #NHERITallwood partners on Twitter: @NHERI_UCSD @Unevadareno @UCSanDiego @UCSDJacobs @unrengineering, @NSF @slpei @commresilience @MinesCEE @coschoolofmines @CEMCO_steel @csinconline @strongtie @TechGlassPro

In this episode, earthquake engineer and #NHERITallwood co-PI Keri Ryan gets specific about #NHERITallwood nonstructural components: non-loadbearing walls — elements extremely prone to earthquake drift and damage. Ryan shows us the cold-formed-steel exterior-wall subassemblies and some of the innovative building components that can prevent non-structural deformations due to ground shaking.CEMCO @CEMCO_steelConstruction Specialities Group @csinconlineSimpson StrongTie @strongtieNeed to know more? Get the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ Follow the NHERI Tallwood project with the live video stream at UC San Diego: http://nheri.ucsd.edu/video/Find Professor Keri Ryan on LinkedIn: https://www.linkedin.com/in/keri-ryan-29332399/Twitter: @NHERI_UCSD @Unevadareno @UCSanDiego @UCSDJacobs @unrengineering, @NSF @slpei @commresilience @MinesCEE @coschoolofmines @CEMCO_steel @csinconline @strongtie#NHERITallwood #coldformedsteel #CFS #naturalhazards #resilience #NSFfunded #earthquakeEngineering #womeninengineering #NSFStories

In this special DSR episode, earthquake engineer Keri Ryan takes us on a 20-minute walking tour of the NHERI Tallwood structure. See the 10-story mass-timber building under construction — from the outside in! This milestone experiment is taking place at UC San Diego on the world’s largest outdoor shake table. For the first time, researchers are developing and validating a resilient seismic design methodology for tall wood buildings. The work is funded by the National Science Foundation, with support from many industry partners.Curious? Get the backstory on NHERI Tallwood: http://nheritallwood.mines.edu/ Follow the NHERI Tallwood project with the live video stream at UCSD: http://nheri.ucsd.edu/video/Find Professor Keri Ryan on LinkedIn: https://www.linkedin.com/in/keri-ryan-29332399/#NHERITallwood #CLT #Crosslaminatedtimber #massTimber #rockingwalls #naturalhazards #resilience #NSFfunded #earthquakeEngineering #womeninengineering #NSFStoriesTwitter: @NHERI_UCSD @Unevadareno @UCSanDiego @UCSDJacobs @unrengineering, @NSF @slpei @commresilience @swinerton @MinesCEE @coschoolofmines @Boise_Cascade

Today we chat with Keri Ryan, a co-principal investigator on the NHERI Tallwood project. We catch up with her onsite at the enormous UC San Diego shake table, a NHERI experimental facility. Ryan, an earthquake engineer at University of Nevada Reno, provides a succinct primer on the Tallwood research project, a 10-story wood building designed to resist earthquake loads.Curious? More background on NHERI Tallwood: http://nheritallwood.mines.edu/ Follow the NHERI Tallwood project with the live video at UCSD: http://nheri.ucsd.edu/video/Find Professor Keri Ryan on LinkedIn: https://www.linkedin.com/in/keri-ryan-29332399/#NHERITallwood #CLT #Crosslaminatedtimber #massTimber #rockingwalls #naturalhazards #resilience #NSFfunded #earthquakeEngineering #womeninengineering #NSFStories

Machine-learning expert Krishna Kumar joins host Dan Zehner to discuss the annual NHERI Hackathon. Kumar details this exciting event, which takes place every year at the Texas Advanced Computing Center. Leveraging DesignSafe data and computational resources, participants have three days to code solutions to natural hazards problems using machine learning. Kumar is an assistant professor in civil and environmental engineering at University of Texas professor.#naturalhazards #hackathon #machinelearning #AI #engineeringeducation #simulation #modeling #NHERIHackathonRead more about the annual NHERI Hackathon and DesignSafe Academy: https://www.designsafe-ci.org/learning-center/designsafe-academy/Want to learn more about natural hazards simulation and modeling? Visit the NHERI SimCenter, headquartered at UC Berkeley: https://simcenter.designsafe-ci.org/Follow NHERI DesignSafe!LinkedIn: https://www.linkedin.com/company/nheri-designsafe/Twitter: https://twitter.com/nheriDesignSafeFacebook: https://www.facebook.com/NaturalHazardsEngineeringResearchInfrastructureInstagram: https://www.instagram.com/nheridesignsafe/Twitter: @TACC @NheriGsc @NSF @NheriEco @ERathje @NHE_SimCenter#NSFStories, #naturalhazards, #NHERIhackathon

The full interview episode with Stanford-based structural engineer Barbara Simpson — in person at the Oregon State University Wave Laboratory, a NHERI experimental facility.

What’s it like to be a young woman in engineering? Barbara Simpson shares some undergraduate and PhD experiences and talks about the importance of having positive, confidence-building mentors. Now a research engineer at Stanford University, she says, “This is where I was meant to be.” Ultimately, she says, diversity in engineering makes for more ideas, perspective and fun.Follow Simpson’s blog: https://simpsoba.wordpress.comAnd follow her on Instagram: @simpsobaTwitter: @StanfordEng @HinsdaleOSU, #NSFStories, @NSF, @NheriEco

Onsite at the NHERI OSU wave laboratory, Dan Zehner and Barb Simpson talk about “real time hybrid simulation.” This technique joins numeric models with physical experimentation enables engineers to deal with those pesky problems of scale. In a current project, Simpson is studying wind, wave, and soil behavior at play in offshore wind turbines — which in 2016 had average hub-heights of over 330 feet.#RTHS #hybridsimulation #windturbine #SSI #SFI #womeninengineering #windengineeringLinkedIn: https://www.linkedin.com/in/barbara-simpson-9255445b/Twitter: @StanfordEng @HinsdaleOSU, #NSFStories, @NSF, @NheriEco

Today we have an exciting meet-up with Stanford-based structural engineer Barbara Simpson — in person at the Oregon State University Wave Laboratory, a NHERI experimental facility. Simpson’s passionate about building computer programming skills in undergraduate engineers, particularly those in underrepresented groups who may lack such experience. She applies parallel processing in her own investigations in soil-to-fluid interactions in floating offshore wind turbines.Read more about Simpson’s work training undergraduate engineers in programming:https://stem.oregonstate.edu/people/barbara-simpsonOn her blog, Simpson discusses using computational and experimental methods to solve problems in natural hazards engineering:https://simpsoba.wordpress.com/LinkedIn: https://www.linkedin.com/in/barbara-simpson-9255445b/Twitter: @StanfordEng @HinsdaleOSU, #NSFStories, @NSF, @NheriEco

Today we delve into engineering education with Jeremy Waisome, instructional assistant professor at the University of Florida. As well as being an engineer and researcher, Waisome is an eloquent science communicator. She’s dedicated to educating the next generation of engineers — and the public — about vital engineering concepts. Among her many roles, she leads education and outreach efforts at the NHERI University of Florida facility.Waisome describes a variety of pathways to engineering and why having a diverse workforce is so important. “There’s so much that we underestimate what we do as engineers — and the impact it has on other people’s lives.” she says. At the University of Florida, Waisome trains high school teachers at Title 1 schools to incorporate engineering projects into their classrooms.We learn the importance of exposing high school and college students to engineering education as a college major. Waisome explains enriching opportunities such as the NHERI Research Experiences for Undergraduates program and the importance of having role models and mentors who come from one’s own community. She also talks about her own podcast: Modern Figures, which features Black women in computing.

In our final episode featuring Jeremy Waisome fromthe NHERI University of Florida facility, we learn the importance of exposing high school andcollege students to engineering education as a college major. Waisome explains enrichingopportunities such as the NHERI Research Experiences for Undergraduates program and theimportance of having role models and mentors who come from one’s own community. She alsotalks about her own podcast: Modern Figures, which features Black women in computing. Catch up with Jeremy Waisome:Modern Figures podcasthttps://modernfigurespodcast.com/@jeremywaisome on TwitterLinkedIn: @jwaisomeOutreach at the NHERI at University of Florida experimental facility: https://ufl.designsafe-ci.org/outreach/

Misconceptions about engineering. Engineering educator Jeremy Waisome describes a variety of pathways to engineering and why having a diverse workforce is so important. “There’s so much that we underestimate what we do as engineers — and the impact it has on other people’s lives.” she says. At the University of Florida, Waisome trains high school teachers at Title 1 schools to incorporate engineering projects into their classrooms. #engineeringeducation #diversity #DEI #engineeringworkforce #globalimpact #pathwaystoengineering #title1Jeremy Waisome at the University of Floridahttps://www.essie.ufl.edu/programs/engineering-education/name/jeremy-waisome/

Today we delve into engineering education with Jeremy Waisome, instructional assistant professor at the University of Florida. As well as being an engineer and researcher, Waisome is an eloquent science communicator. She’s dedicated to educating the next generation of engineers — and the public — about vital engineering concepts. Among her many roles, she leads education and outreach efforts at the NHERI University of Florida facility.#engineeringeducation #sciencecommunications #rolemodeling Jeremy Waisome at the University of Florida: https://www.essie.ufl.edu/programs/engineering-education/name/jeremy-waisome/Jeremy Waisome’s personal website: https://www.jeremywaisome.com/aboutLinkedIn: @jwaisome

Tune in for our full interview with NHERI RAPID Director Joe Wartman. After major earthquakes, hurricanes and floods, the RAPID team springs into action with specialized tools for data reconnaissance missions. Wartman discusses the RAPID equipment, key missions — and how engineers use perishable data to make our communities more resilient.#NSFfunded #naturalhazards #engineering #research LinkedIn: @Joseph WartmanTwitter: @NHERI_RAPID, @NSF Facebook: @RAPIDNaturalHazardsReconClick here for more information on the RAPID Facility.

Since operations began in 2018, the NHERI RAPID facility has deployed reconnaissance teams and equipment to more than 80 sites around the world. Director Joe Wartman describes several, including a mission to Florida after Hurricane Michael that helped change building codes and an emergency deployment to Miami after the Surfside Condo collapse in 2021. #naturalhazards #reconnaissance #datareuse #buildingcodes #extremeevent #tsunami #wildfire #community #resilience #surfsidecondo #NIST #GEER #StEER Keep current by following the RAPID facility on Twitter: @NHERI_RAPIDVisit the NHERI RAPID website: https://rapid.designsafe-ci.org/Looking for RAPID data? Visit the NHERI Data Depot: https://www.designsafe-ci.org/data/browser/public/Learn more about NSF-funded research in extreme events: https://www.designsafe-ci.org/facilities/extreme-events-research/Meet up with members of the RAPID team at the 2022 AGU fall meeting: https://www.agu.org/fall-meeting LinkedIn: @Joseph WartmanTwitter: @NHERI_RAPID, @NSF Facebook: @RAPIDNaturalHazardsRecon

What happens after a reconnaissance mission using NHERI RAPID tools? In this episode of DesignSafe Radio, RAPID director Joe Wartman discusses the post-processing phase, when collected perishable data gets converted into a form researchers can use. The RAPID team, with its knowledge and experience, smooths the way for research teams — from planning to obtaining practical output. https://rapid.designsafe-ci.org/#NSFfunded #naturalhazards #extremeEvents #fieldresearch #reconnaissance #lidar #RAPP #bathymetry #accelerometers #seismometers #structuralengineering #geotechnical #researchLinkedIn: @Joseph WartmanTwitter: @NHERI_RAPID, @NSF Facebook: @RAPIDNaturalHazardsRecon

Facility director Joe Wartman details the NHERI RAPID tool kit. Natural hazards reconnaissance teams can deploy the RAPID’s laser scanners, drones, multi-spectrum cameras, listening devices – even a bathymetry boat. With many years of collective field experience, the RAPID team itself provides invaluable technical expertise.https://rapid.designsafe-ci.org/#NSFfunded #naturalhazards #extremeEvents #fieldresearch #reconnaissance #lidar #RAPP #bathymetry #accelerometers #seismometers #structuralengineering #geotechnical #researchLinkedIn: @Joseph WartmanTwitter: @NHERI_RAPID, @NSF Facebook: @RAPIDNaturalHazardsRecon

Joe WartmanProfessor of Civil and Environmental EngineeringUniversity of Washington Principal Investigator, NHERI RAPID facilityWartman introduces his NSF-funded natural hazards reconnaissance facility, called the NHERI RAPID. He clarifies the term “RAPID” (in all caps), which is a kind of generic term (not an acronym) inherited from the National Science Foundation. The actual name of Wartman’s University of Washington-based group is the “Natural Hazard and Disaster Reconnaissance Facility.” It suggests the speed at which his group responds to extreme events. LinkedIn: @Joseph WartmanTwitter: @NHERI_RAPID, @NSF Facebook: @RAPIDNaturalHazardsRecon

University of Oklahoma earthquake engineer Scott Harvey is developing a base isolation system to protect valuable and sensitive contents inside buildings. He employed the shake table at the NHERI Lehigh University experimental facility to learn how his isolation system behaves under shaking. In his next experiments, Harvey will deploy the magic of real-time hybrid simulation (RTHS) to numerically simulate buildings with his physical device -- using NHERI Lehigh’s well-known RTHS capabilities.Video footage of Harvey’s isolation system on the NHERI Lehigh shake table: https://www.facebook.com/NHERILehighRTMDHarvey’s NSF base isolation research : https://sites.google.com/view/harveyresearchgroup/research-projects/3d-seismic-isolation?authuser=0A description of Harvey’s isolation system at NHERI Lehigh: https://lehigh.designsafe-ci.org/projects/quantifying-seismic-resilience-multi-functional-floor-isolation/ This video is supported by NSF grant #2129782: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2129782

Protecting valuable equipment from earthquake damageRolling base-isolation system keeps objects safe within data centers, hospitals, and museums.Scott Harvey, earthquake engineer from the University of Oklahoma, is developing a base-isolation system for protecting critical equipment and objects inside buildings: things such as data center computers, power systems, medical equipment -- even artworks. Harvey uses the multidirectional shake table at NHERI Lehigh experimental facility to test his base-isolator designs.#baseisolation #earthquakeengineering #rollingisolation #NHERILehigh #shaketable #NSFfunded Learn more:Harvey Research Group at the University of Oklahomahttps://sites.google.com/view/HarveyResearchGroup/Details on Harvey’s base isolation tests at NHERI Lehighhttps://lehigh.designsafe-ci.org/projects/quantifying-seismic-resilience-multi-functional-floor-isolation/NHERI Lehigh experimental facilityhttps://lehigh.designsafe-ci.org/facility/overview/

We learn about the NHERI Graduate Student Council from its president Holly Davies. GSC members are young researchers studying natural hazards in fields as diverse as engineering, social sciences, computer simulation, urban planning.Follow the GSC on Twitter: https://twitter.com/NheriGscAnd on LinkedIn: https://www.linkedin.com/in/ngsc/Interested in joining NHERI’s Graduate Student Council? Visit the website: https://www.designsafe-ci.org/learning-center/nheri-graduate-student-council/Learn more about Holly Davies and the rest of the GSC leadership team: https://www.designsafe-ci.org/learning-center/nheri-graduate-student-council/explore/leadership/Register to watch the NHERI Summer Institute online: https://www.designsafe-ci.org/learning-center/summer-institute/

Host Dan Zehner meets up with geotechnical engineer Brady Cox, professor of engineering at Utah State University and co-PI at the NHERI @ University of Texas mobile shaker facility. Cox introduces the UTexas mobile shakers, huge vehicles that simulate a range of ground motions for studying earthquakes. There’s “T-Rex,” perhaps the world’s only shaker capable of generating large dynamic forces in any of three directions — vertical, horizontal in-line, and horizontal cross-line. And the custom-built “Liquidator,” weighing in at 70,000 pounds, which shakes vertically at very low frequencies; its longer waves help researchers look deeper into the ground. Cox describes how engineers deploy the NHERI mobile shaker fleet around the world to study ground-based infrastructure like levees, soils that are prone to liquefaction, and civil structures like bridges.Natural hazards engineers at the University of Texas are using fiber optic cable for subsurface and structural sensing. It’s called distributed acoustic sensing, or DAS, and it is much more efficient than traditional geophones or accelerometers. By sending laser light pulses through fiber optic cables — which are ultra-sensitive to light deflections — researchers can measure ground disturbances for up to 30 meters.NHERI at UTexas website: https://utexas.designsafe-ci.org/Short video shows how a shaker truck is used to characterize soil: https://www.youtube.com/watch?v=5cGbMggwxogMore about Brady Cox’s research: https://engineering.usu.edu/cee/people/faculty/cox-bradySubsurface geotechnical imaging, as with levees: https://www.youtube.com/watch?v=IS-qn06pVOw&list=PL2GxvrdFrBlma1A6IMfMasP-RP8ku5s2N&index=1Testing for liquefiable soils:https://www.youtube.com/watch?v=5cGbMggwxog&list=PL2GxvrdFrBlma1A6IMfMasP-RP8ku5s2N&index=2Structural health monitoring:https://www.youtube.com/watch?v=HRX-WMumpDQ&list=PL2GxvrdFrBlma1A6IMfMasP-RP8ku5s2N&index=3NHERI at UTexas recently presented a workshop on DAS technology, including a live demonstration of a levee in Blackhawk, Louisiana. View the workshop recordings here.Interested in using NHERI Mobile Shakers in your work, or want to learn more? Contact us!

Natural hazards engineers at the University of Texas are using fiber optic cable for subsurface and structural sensing. It’s called distributed acoustic sensing, or DAS, and it is much more efficient than traditional geophones or accelerometers. By sending laser light pulses through fiber optic cables — which are ultra-sensitive to light deflections — researchers can measure ground disturbances for up to 30 meters. Sound interesting? Contact the NSF-funded NHERI network to learn more: [email protected] at UTexas recently presented a workshop on DAS technology, including a live demonstration of a levee in Blackhawk, Louisiana. View the workshop recordings here.

Here is natural hazards research that takes place outside the lab! Professor Brady Cox describes how engineers deploy the NHERI mobile shaker fleet around the world to study ground-based infrastructure like levees, soils that are prone to liquefaction, and civil structures like bridges. Watch Brady Cox’s demonstration videos here:Subsurface geotechnical imaging, as with levees: click here Testing for liquefiable soils: https://www.youtube.com/watch?v=5cGbMggwxog&list=PL2GxvrdFrBlma1A6IMfMasP-RP8ku5s2N&index=2Structural health monitoring: https://www.youtube.com/watch?v=HRX-WMumpDQ&list=PL2GxvrdFrBlma1A6IMfMasP-RP8ku5s2N&index=3Interested in using NHERI Mobile Shakers in your work, or want to learn more? Contact us!

On today’s show, we get an intro to the mobile shaker fleet at the NHERI’s University of Texas facility. Host Dan Zehner meets up with geotechnical engineer Brady Cox, professor of engineering at Utah State University and co-PI at the NHERI @ University of Texas mobile shaker facility. Cox introduces the UTexas mobile shakers, huge vehicles that simulate a range of ground motions for studying earthquakes. There’s “T-Rex,” perhaps the world’s only shaker capable of generating large dynamic forces in any of three directions — vertical, horizontal in-line, and horizontal cross-line. And the custom-built “Liquidator,” weighing in at 70,000 pounds, which shakes vertically at very low frequencies; its longer waves help researchers look deeper into the ground. NHERI at UTexas website: https://utexas.designsafe-ci.org/Short video shows how a shaker truck is used to characterize soil: https://www.youtube.com/watch?v=5cGbMggwxogMore about Brady Cox’s research: https://engineering.usu.edu/cee/people/faculty/cox-brady

Enjoy our full interview with Elaina Sutley!

In this episode of DesignSafe Radio, structural engineer Elaina Sutley covers ways that research can tangibly improve resilience of manufactured homes. She discusses local amendments to building codes that cities can implement. Currently, she and her research team are studying mobile home parks and ways to reduce wind damage. She emphasizes that dealing with windstorms is more than a building design problem, since residents in these vulnerable structures are often the most socially vulnerable. We also need systems in place to help people recover from natural disasters.Elaina Sutley’s research group at University of Kansas, Advancing Disaster Resilience Science on Communities and Housing.Wind damage data collected by Sutley and other natural hazards researchers is available at the DesignSafe Data Depot repository.

Sutley explains differences between manufactured homes and site-built homes and why there is so little crossover in design provisions. She also refutes the primary objection to improving performance manufactured homes: If we improve performance, they won’t be affordable.Additionally, Sutley describes how researchers can use publicly available data to deepen their wind disaster investigations when alongside damage data gathered onsite.

It’s no secret: tornadoes and hurricanes wreak havoc on manufactured homes. So why don’t we build them stronger? To detail the challenges to improving their performance we have Elaina Sutley, associate professor of structural engineering at the University of Kansas. With an interdisciplinary engineering and social science focus, Sutley examines disparities when it comes to communities recovering from extreme wind hazards.Although the problem is well-known, change is slow. Sutley details the particular problems and complexities involved in upgrading design provisions for manufactured homes. For more information:Contact Elaina Sutley Engineers Who Engage: Elaina Sutley Wind Effects on Elevated Buildings

If you have not been able to catch our most recent episodes with Jason DeJong, listen to this episode for his full interview. Jason DeJong is a professor of engineering at UC Davis and is the head of the Center for Biomediated and Bioinspired Geotechnics (CBBG) team at UC Davis. More information on NHERI at UC DavisJason DeJong “That proportional scale is amazing. We can simulate real-world systems that we can’t really do any other way.” - Jason DeJong

Snake skin, tree roots, and nitrogen-burping microbes! In our third episode on biogeotechnics, Jason DeJong discusses a few of the wild-sounding research projects that focus on imitating or controlling natural processes — to create safer, and more efficient, infrastructure. Researchers develop ideas the Center for Biomediated and Bioinspired Geotechnics (CBBG), and they can test theirconcepts at places like NHERI at UC Davis and at otherfacilities in the NSF-funded Natural Hazards Engineering Research Infrastructure (NHERI). Both NHERI and CBBG are funded by the National Science Foundation, demonstrating the nation’s commitment to fostering and deploying emerging new designs and technologies in bioengineering. “It’s a nice combination. We have technologies emerging from one group, and we have these established, shared-use national resources provided through NHERI.”

In our second episode with natural hazards engineer Jason DeJong, we learn about biogeotechnics — a field that links biology and the natural world with engineering. DeJong explains how researchers at NHERI UC Davis have learned to use bacteria to chemically bind sand particles and create high-strength soils — that are resistant to liquefaction. It’s called biomediated ground improvement. A related approach, called biomimicry or bioinspired engineering, seeks to imitate natural designs. For example, engineers at UC Davis study snake skin to design more efficient piles.“How can we push more towards bio systems that can be that much more efficient.”

On this episode, natural hazards Jason DeJong discusses the experimental centrifuges, including the giant nine-meter centrifuge, at the UC Davis Center for Geotechnical Modeling, a NHERI facility. DeJong explains how rapidly spinning centrifuges create “hypergravity” — a force up to 200 Gs — to study how structures and soil withstand natural hazards. Here’s how it works: researchers place a physical model in the centrifuge bucket and subject it to a high-speed, hypergravity field. Then, using equations, they scale the loading forces proportionate to the model. This crazy, high-speed environment, enables scientists to see and measure the stresses of earthquakes, waves and wind on natural and built environments.“That proportional scale is amazing. We can simulate real-world systems that we can’t really do any other way.” - Jason DeJongJason DeJong NHERI UC Davis Centrifuge

Don’t miss our full interview with Ian Robertson on today’s episode. We are discussing the NHERI Science Plan, a long-term guide to addressing gaps in natural hazards engineering research. Robertson explains this community-driven document and how it is evolving in the upcoming third edition to incorporate aspects of hazard simulation, modeling tools, and social science integration. Download a copy for a fascinating look at the work ahead in natural hazards engineering research. https://www.designsafe-ci.org/facilities/nco/science-plan/

Ian Robertson discusses the third edition of the Science Plan, a living document for natural hazards to consult as they design their individual research projects. Version three of the NHERI Science Plan incorporates key uses of simulation and modeling tools, social science approaches such as policy and economics, as well as the NSF-funded Extreme Events Reconnaissance teams — who do field research after an earthquake or a hurricane.Be sure to download a copy for a fascinating look at the work ahead in natural hazards engineering research. https://www.designsafe-ci.org/facilities/nco/science-plan/

In this episode, NHERI’s Ian Robertson discusses how natural hazards engineers quantify how well they are addressing the big problems, sometimes called “grand challenges.” For civil engineers, success is often measured by the incorporation of new designs into building codes. Robertson discusses the long-term processes for getting ideas for resilient structures into actual practice. For instance, the NHERI Science Plan highlights high-impact areas for study and provides examples of the kinds of research needed to get into code — and address the grand challenges.“By incorporating social science in our engineering research, we can be more cognizant of how it is going to impact society.” - Ian Robertson Find details and download the NHERI Science Plan:https://www.designsafe-ci.org/facilities/nco/science-plan/

The NHERI Science Plan is a long-term guide to addressing gaps in natural hazards engineering research. NHERI’s Ian Robertson provides background on this community-driven document, its purpose, history and evolution. He reveals updates that will be included in the upcoming third edition, which will incorporate aspects of hazards simulation and social science integration.The Science Plan is an excellent heuristic for early-career researchers, who can use it to hone in on high-impact problems. Find details and download the NHERI Science Plan:https://www.designsafe-ci.org/facilities/nco/science-plan/

In our third and final episode with Lori Peek of the NHERI CONVERGE facility, we learn how to get involved in extreme events research (EER). Formal education or training is not required. Peek directs listeners to the CONVERGE website for details on the NSF-funded extreme events groups to see which appeal to you. You can join more than one. The data collected by EER groups goes toward engineering research, but Peek says that by working with local communities, there are ways to apply damage mitigation lessons directly, from the bottom up.Lastly, Peek urges anyone interested in disaster research to explore other CONVERGE resources. The CONVERGE modules help train people to conduct field research.NHERI CONVERGE website: https://converge.colorado.edu/List of extreme events research groups: https://converge.colorado.edu/research-networks/NHERI CONVERGE training modules and other resources: https://converge.colorado.edu/resources/

In our second episode with Lori Peek of the NHERI CONVERGE facility, Peek discusses the social infrastructure that enables extreme events reconnaissance (EER) teams to work together on NSF-funded natural hazards research. She explains the NHERI Leadership Corps and how this coordinating group unites researchers from different disciplines — from engineers to social scientists to data scientists. She also gives examples of how EER teams differ in their actions and membership. Lastly, Peek describes the shared commitment among EER teams, to gather and share their data publicly on the NHERI DesignSafe cyberinfrastructure — so the full gamut of multidisciplinary natural hazards data is available for the entire research community to build on.Related Links:NHERI CONVERGE FacilityUniversity of Colorado Boulder Converge Facility Lori Peek, NHERI CONVERGE Principal Investigator

In this episode of DesignSafe Radio, host Dan Zehner interviews Lori Peek, principal investigator for the NHERI CONVERGE facility, based at the University of Colorado Boulder. Peek is also professor of sociology at UC Boulder and director of the Natural Hazards Center at UC Boulder.Peek explains how, within NHERI, CONVERGE represents the intersection of social science with engineering. For CONVERGE, the focus is on hazards in general, and how they affect populations, and less on specific types of disasters and natural hazards.CONVERGE represents cross disciplinary work, between engineers and social scientists, and it’s particularly notable with the “Extreme Events Reconnaissance” groups that CONVERGE administers. Peek describes the seven “EERs” supported by NSF that collaborate and communicate under the CONVERGE umbrella:GEER, Geotechnical Extreme Events ReconnaissanceSSEER, Social Science Extreme Events ResearchStEER, Structural Extreme Event ReconnaissanceNEER, Nearshore Extreme Event ReconnaissanceOSEER, Operations and Systems Engineering Extreme Events ResearchSUMEER, Sustainable Material Management Extreme Events ReconnaissanceISSEER, Interdisciplinary Science and Engineering Extreme Events Research Related Links:NHERI CONVERGE FacilityUniversity of Colorado Boulder Converge Facility Lori Peek, NHERI CONVERGE Principal Investigator

This episode is our full interview with NHERI REU students. The students are Adithya Salil Nair from the Ohio State University, Claire Sorensen from the University of North Carolina Wilmington, and William Zakka from University of Texas Austin. The full interview episode is also available on Youtube!Related Links:NHERI REU Summer Program InformationMeet the REU StudentsNHERI Simcenter

In our last episode featuring the 2021 SimCenter REU students, rising seniors Adithya, Claire and Will talk about applying to graduate programs — which will enable them to conduct more research. For each of them, the summer research experience with the NHERI SimCenter has encouraged them to pursue an advanced engineering degree. They discuss specific ways that undergraduates can discover research opportunities and internships, which can give them a leg up when applying to graduate schools.Related Links:NHERI REU Summer Program InformationMeet the REU StudentsNHERI Simcenter