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DesignSafe Radio

Natural Hazards Engineering Research Infrastructure

We all have experienced natural hazards in our lives: earthquakes, hurricanes, tornadoes, tsunami, floods: they impact our society at the most fundamental levels. Through rigorous testing and outreach programs, the team at the Natural Hazards Engineering Research Infrastructure is committed to making sure the next natural hazard doesn"t have to be a disaster for you and your family. From the National Science Foundation and the Natural Hazards Engineering Research Infrastructure: This is DesignSafe

science natural sciences

All Episodes

00:10:10

STARR software framework featuring Rachel Davidson

DesignSafe Radio ·

2024/09/18

Working with the NHERI SimCenter and DesignSafe, the CHEER team is developing a software framework called Stakeholder-based Tool for the Analysis of Regional Risk, or STARR. STARR modeling extends regional loss models like R2D, INCORE, and Hazus to include a focus on decision making. STARR models describe the complex and often conflicting ways that stakeholders in vulnerable coastal areas make decisions. Stakeholders are households, insurers, and government agencies. If policies can account for

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00:06:53

The CHEERHub: A new approach to coastal resilience ...

DesignSafe Radio ·

2024/09/03

Rachel Davidson is a research engineer at the University of Delaware and principal investigator for the “Coastal Hazards Equity, Economic Prosperity, and Resilience Hub,” or CHEERHub. The five-year, $16M, NSF-funded, multi-disciplinary research network is tackling the complexity of coastal resilience by focusing on stakeholder decision making. Davidson introduces CHEER and explains why so many good ideas for managing disaster risks do not get implemented. Learn more about the CHEERHub

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00:13:41

Mentoring at UC Davis

DesignSafe Radio ·

2024/08/20

Mentoring at UC Davis How do geotech students gain experience? Laura Luna and José Luis Caisapanta discuss the UC Davis Geotechical Graduate Student Society, a nationally respected mentoring program. In an intentional “laddering” fashion, grad students new to the UC Davis program learn from more experienced grad students and – in turn – pass their knowledge to undergrads and K-12 students. Luna and Caisapanta share their experiences as members of the GGSS. UC Davis GGSS

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00:13:41

Modeling EQs in a centrifuge with UC Davis graduate...

DesignSafe Radio ·

2024/08/06

Civil engineering grad students from NHERI UC Davis join Dan Zehner to discuss research at the renowned Center for Geotechnical Modeling, a geotech lab equipped with a nine-meter centrifuge. Master’s student Jose Louis Caisapanta describes soil experiments with the centrifuge – which can deploy a shake table during its 50G spins. PhD student Laura Luna explains building physical models in the centrifuge. She uses resulting data to create a computer model that will predict soil behavior beneath a

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00:15:04

The WOW Challenge and the future of wind engineering...

DesignSafe Radio ·

2024/07/25

In our final episode with FIU meteorologist Erik Salna, we learn about the Wall of Wind Challenge, an annual event for high school students. NHERI researchers provide a specific wind mitigation challenge. Student teams design and build a protective structure, and then get the chance to test their designs in the Wall of Wind. It’s an exciting competition, which is judged by engineers who are Wall of Wind alums! See below for links to the 2024 event and Salna’s template for conducting this popular

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00:09:59

Wall of Wind: Testing civil infrastructure Featuring...

DesignSafe Radio ·

2024/07/09

FIU-based meteorologist and educator Erik Salna relates some unusual but important WOW experiments to test the effects of wind loading on civil infrastructure such as construction cranes and electrical power towers. One unique project used flying debris in the wind tunnel to derive an algorithm for determining wind speeds in video captures. Wall of Wind debris experiments to build an algorithm that will calculate wind speeds from social media-derived video:

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00:05:16

Wall of Wind & Hurricane Research Featuring Erik Salna

DesignSafe Radio ·

2024/06/18

Meteorologist and educator Erik Salna provides nitty-gritty details on the gigantic, NSF-funded wind research lab called the Wall of Wind, or WOW. Located at Florida International University in Miami, the WOW facility is part of the NSF-funded NHERI network. Each of WOW’s 12-fans are six feet in diameter and weigh nearly 15,000 pounds. Powered up together, the 720HP electric motors can reproduce category 5 hurricane wind speeds, 157MPH. See the WOW in action:

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00:08:43

Snakeskin-inspired piles and tech transfer Featuring...

DesignSafe Radio ·

2024/06/04

UC Davis professor Alejandro Martínez is moving his bio-inspired snakeskin piles into industry practice. The novel pile-surface employs “frictional directionality” characteristic of snakeskin. Field trials provided better than expected results, and Martínez is now working to get his new design into the hands of practicing geotechnical engineers. Much of his NSF-supported research took place at the NHERI at UC Davis Center for Geotechnical Modeling; the project is part of the NSF-funded Engineering

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00:11:02

Engineering with Evolution Featuring Alejandro Martínez

DesignSafe Radio ·

2024/05/28

UC Davis professor Alejandro Martínez explains how biogeotechnical engineers leverage solutions from lifeforms like worms, trees, and bacteria. It starts with fundamental, cross-disciplinary work with biologists. Then, at the UC Davis Center for Geotechnical Modeling (CGM), centrifuge tests fill an important gap between laboratory ideas and full-scale field tests. For instance, by replicating ground stress and increased gravity in a centrifuge, geotechs can model and test designs at greater soil

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00:12:00

Biogeotechnics: Engineers leverage, learn from nature...

DesignSafe Radio ·

2024/05/21

Geotechnical engineer Alejandro Martínez joins us to discuss a new and multidisciplinary engineering subfield called biogeotechnics. “Bioinspired” research examines and mimics ways that plants, animals and bacteria successfully interact with soil. For example: how tree roots successfully resist wind loads. “Biomediated” research uses biological elements to improve soil. For example, byproducts of certain bacteria can cement and desaturate soil — potentially preventing liquefaction in susceptible

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00:13:42

Conferences, reconnaissance opportunities for NHERI...

DesignSafe Radio ·

2024/05/07

Meet Nurullah Bektaş, engineering PhD candidate and research chair with the NHERI Graduate Student Council. He talks with Dan Zehner about the virtual GSC Mini Conference, slated for May 31, 2024. Bektaş, who is earning his PhD from Széchenyi István University in Hungary, encourages grad students in natural hazards get involved in sharing research and conducting post-event reconnaissance. He relates his own field experience helping householders in Turkey after the devastating 2023 earthquake series

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00:10:00

Sustainable Functional Recovery: A New Engineering...

DesignSafe Radio ·

2024/03/26

Episode 3: Sustainable Functional Recovery: A New Engineering Design Paradigm The novel Converging Design research project merges post-earthquake functional recovery with sustainability. Project PI Andre Barbosa discusses potential results from this effort, such as building code updates and new building products. Other tangible outcomes: successful industry-academia partnerships — and a cohort of engineering students who will take lessons about _sustainable functional recovery_ into the future

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00:11:28

Shake-Table Testing Earthquake-Resistant Building...

DesignSafe Radio ·

2024/03/18

Episode 2. Shake-Table Testing Earthquake-Resistant Building Components Earthquake engineer Andre Barbosa joins us to describe the fascinating NHERI Converging Design project, currently testing earthquake-resilient building components on the NHERI at UC San Diego shake table. Barbosa describes U-shaped flexural plates (UFPs), which can deform and dissipate energy – and with post-tensioning rods, recenter. Also, the team is testing buckling restrained braces, which function like replaceable

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00:12:00

Improving seismic resilience and sustainable design...

DesignSafe Radio ·

2024/02/27

Andre BarbosaProfessor, Structural EngineeringOregon State University Episode 1. The NHERI Converging Design project merges functional recovery with sustainability. Project PI Andre Barbosa of Oregon State University joins us to discuss how the shake table experiments at UC San Diego shake table will lead to improved building codes in seismically vulnerable zones like the Pacific Northwest. Get background info on the multi-institutional NHERI Converging Design project:

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00:10:33

Lehigh University's ATLSS Facility with Alia Amer Part 2

DesignSafe Radio ·

2024/01/30

Alia AmerPostdoctoral ResearcherNHERI Lehigh FacilityATLASS Research CenterLehigh University Hybrid simulation at Lehigh tests structural resilience In our second episode with NHERI Lehigh engineer Alia Amer, find out how this engineering lab performs real-time hybrid simulation, RTHS. This sophisticated, cost-effective testing method connects a numeric model of a substructure — with a physical model or device. Then researchers apply a natural hazard – wind, earthquake or waves – to test device

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00:01:30

Lehigh University's ATLSS Facility with Alia Amer

DesignSafe Radio ·

2024/01/16

Alia AmerPostdoctoral ResearcherNHERI Lehigh FacilityATLASS Research CenterLehigh University Research engineer Alia Amer gives us an overview of ATLSS research center, core of the NHERI facility at Lehigh University. Amer shows examples of complex, large-scale tests – multi-hazard simulations – at Lehigh. The lab designs accurate, complete simulations, including soil-structure-interactions, of natural hazard events such as earthquakes and windstorms. Dynamic, quasi-static, and hybrid

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00:05:45

Testing novel pressurized sand dampers at NHERI...

DesignSafe Radio ·

2023/12/07

Makris episode 2Testing novel pressurized sand dampers at NHERI Lehigh Nicos Makris explains his innovative protective damper system made with pressurized sand, which obviates problems presented by traditional dampers that use oil. In partnership with the NHERI Lehigh experimental facility, Makris is performing component testing and developing the numerical model in preparation for hybrid simulation testing, also at Lehigh. The cyber-physical tests allow researchers great flexibility when developing

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00:06:02

Nicos Makris: Dampers: shock absorbers for buildings

DesignSafe Radio ·

2023/12/01

Nicos Makris,Professor and Chair of Civil, Environmental and Construction EngineeringSouthern Methodist University Makris episode 1 Dampers: shock absorbers for buildingsEarthquake engineer Nicos Makris joins us to discuss protective dampers, large-scale devices that function like shock absorbers for buildings and bridges. Dampers built into a structure absorb and isolate earthquake, wind, and traffic vibrations. Prof Makris reveals a new type of damper he’s designed that uses pressurized sand to

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00:07:06

SPECIAL EPISODE: NHERI Science Plan (Spanish Audio)

DesignSafe Radio ·

2023/12/01

Este episodio se publicó originalmente en 7 nobiembre 2023. Formas de aprovechar las instalaciones financiadas por la NSF en la investigación sobre riesgos naturales Acaba de publicarse la 3ª edición del Plan Científico del NHERI. Esta completa guía de investigación de 130 páginas describe las formas en que los investigadores pueden utilizar las instalaciones financiadas por la NSF para estudiar los daños causados por los peligros naturales y su prevención. El autor principal, Ian Robertson,

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00:11:05

SPECIAL EPISODE! NHERI Science Plan, Part 2

DesignSafe Radio ·

2023/11/14

Special Episode 2November 13, 2023SCIENCE PLAN SPECIAL EPISODE: Moving civil engineering research into practice Editor Ian Robertson provides details on using the NHERI Science Plan, Third Edition, as a practical guide to successful civil engineering research, including technology transfer and interdisciplinary research teams. NEW in the third edition:· NHERI SimCenter simulation software for estimating damage and simulating mitigation measures.· NHERI CONVERGE social science resources, for

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194 results

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