DesignSafe Radio
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We all have experienced natural hazards in our lives: earthquakes, hurricanes, tornadoes, tsunamis, 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.
DesignSafe Radio
1w ago
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 “structural fuses.” Lastly, the project is examining traditional steel moment frames coupled with ..read more
DesignSafe Radio
1M ago
Andre Barbosa
Professor, Structural Engineering
Oregon 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: https://tallwoodinstitute.org/converging-design-home-5663/
Read up on Professor Barbosa’s research at OSU: htt ..read more
DesignSafe Radio
2M ago
Alia Amer
Postdoctoral Researcher
NHERI Lehigh Facility
ATLASS Research Center
Lehigh 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 resilience.
Lehigh website: https://lehigh.designsafe-ci.org/facilit ..read more
DesignSafe Radio
2M ago
Alia Amer
Postdoctoral Researcher
NHERI Lehigh Facility
ATLASS Research Center
Lehigh 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 simulations!
Lehigh website: https://lehigh.designsafe-ci.org/facility/overview/
Follow NHERI ..read more
DesignSafe Radio
2M ago
Makris episode 2
Testing 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 large-scale engineering devices.
#dampers #CLT #sustainabiility #crosslaminatedt ..read more
DesignSafe Radio
4M ago
Nicos Makris,
Professor and Chair of Civil, Environmental and Construction Engineering
Southern Methodist University
Makris episode 1
Dampers: shock absorbers for buildings
Earthquake 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 address hydraulic failures in oil-based dampers.
More info on Professor Ma ..read more
DesignSafe Radio
4M ago
Special Episode 2
November 13, 2023
SCIENCE 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 incorporating social science methodologies.
· PLUS extreme events teams who conduct po ..read more
DesignSafe Radio
5M ago
SPECIAL EPISODE! Introducing the NHERI Science Plan, Third Edition
Ways to leverage NSF-funded facilities in natural hazards research
Just released: the NHERI Science Plan, 3rd Edition! This comprehensive, 130-page research guide outlines ways researchers can use NSF-funded facilities to study natural hazards damage and prevention. With lead author Ian Robertson, research engineer with the University of Hawaii.
NEW in the third edition:
· NHERI SimCenter simulation software for estimating damage and simulating mitigation measures.
· NHERI CONVERGE social science resources, for in ..read more
DesignSafe Radio
5M ago
Episode 3 Understanding major storms: key to coastal resilience
Understanding the behavior of coastal systems requires specialized researchers, including engineers, to instrument shorelines before a major storm — and to collect and analyze the resulting data. Woods Hole scientist Britt Raubenheimer reiterates the vital importance of federal funding, including NSF funding, which allows for multidisciplinary teams like NEER to perform nested, coordinated reconnaissance missions with NHERI engineers and agencies like USGS and NOAA.
NEER website: https://neerassociation.org/ NHERI ex ..read more
DesignSafe Radio
6M ago
Britt Raubenheimer, PhD
Senior Scientist, Applied Ocean Physics and Engineering
Woods Hole Oceanographic Institution
Principal Investigator, Nearshore Extreme Event Reconnaissance team, NEER
Episode 2 NEER: Nearshore breakwaters and unintended consequences
Coastal scientist Britt Raubenheimer describes NEER’s data reconnaissance missions before, during, and after Hurricane Laura, which struck southwestern Louisiana in 2020. NEER data revealed that breakwater structures could slow storm-surge inundation – but then they would also retain floodwaters passing through it, signi ..read more