(August 7, 2019) -- More than 80,000 aftershocks have been recorded in the aftermath of the two California earthquakes that occurred during the Fourth of July holiday. Californians, generally complacent about earthquakes, were caught by surprise with tremors that were the largest in magnitude in the last decade. Although there was no loss of human life, the U.S. Geological Survey estimates that the earthquakes led to economic losses of approximately $1 billion. Now researchers at The University of Texas at San Antonio (UTSA) have won funding to test architectural materials that can help reduce the lateral movement caused by seismic events with little disruption to everyday life.
“Imagine using just one material that can both hold the weight of a building but also dissipate the energy of an earthquake,” said David Restrepo, assistant professor in the UTSA Department of Mechanical Engineering.
Architects presently rely on metallic or thick and elastic dampers to help mitigate the movement of a building during tremors. However, these same damping devices deform upon impact or melt in extreme temperatures such as fires. This inflexibility results in crumbling buildings and expensive reconstructive efforts.
“We’re working on getting new architectural materials with the right shape that can deform upon an earthquake, trap the energy, dissipate it, and then return to its undeformed state without the need of extra processing or repairs,” adds Restrepo. “We can create a material that relies on elastic deformation.”
During earthquakes, a building’s walls can shear and cause separation. Restrepo intends to place what’s called periodic cellular materials (PCMs), or repeating structures, within the walls to avoid this deformation.
His solution offers three benefits. First, the reduction of structural steel and costs needed in the construction. Second, it’s lightweight. Third, it absorbs high levels of energy.
Currently, the UTSA researcher is assessing flexible architectural materials and working on mathematical formulas to calculate the strength needed for an optimal product. He will collaborate on the research with Colombian civil engineers at Universidad EAFIT and anticipates having preliminary results ready by the end of this year.
The UTSA Office of the Vice President for Research, Economic Development, and Knowledge Enterprise (VPREDKE) provided seed funding to jumpstart Restrepo's earthquake resilience project.
“This is not just about buildings. It’s also about saving lives. We will eventually incorporate these architectural materials even in cars,” said Restrepo.
Learn more about Restrepo’s Lab.
Learn more about UTSA’s Department of Mechanical Engineering.
Celebrate UTSA’s 50th Anniversary and share social media posts about the 50th using the hashtag #UTSA50.
UTSA invites you to participate in our community altar by RSVP to this event. You can also use this link to learn more about Día de Los Muertos:https://anendlessconnection.weebly.com/the-project.html.Student Union Window Lounge, Main Campus
October 28th celebrates National Immigrants Day. On this day, we gather to explore the diverse heritage of our nation’s social fabric. We dedicate this day to understanding how our nation was founded and built by immigrants. Our goal is for the UTSA family to recognize and celebrate how all immigrants, regardless of their citizenship status, contribute to our community through their resiliency and ingenuity.Multicultural Student Lounge, HSU 2.207, Main Campus
The COLFA Advanced Career Pathways Workshops are focused on connecting your education with your career aspirations and exploring your pathways to reach your goal.Mesquite Room, Student Union, 2.01.24, Main Campus
The Westside Community Center will be creating an altar or "ofrenda" as many do within San Antonio and the Westside for "Dia de los Muertos." If you would like to participate, we invite you to send in a photo of a loved one that will be placed in this space. You are welcome to join us on October 28th at 3:00 pm to set up the space and come see us at the Westside Community Center.UTSA Westside Community Center, 1310 Guadalupe St., San Antonio, TX 78207
Blueprints For Pangaea is hosting its first on-campus inventory event of the semester! Join us for a Halloween-themed afternoon where we'll inventory medical supplies while enjoying Halloween movies. By the end of the event, you will have positively impacted the health of hundreds of individuals. We require at least one hour of attendance and come dressed up because the best costumes will earn awards.Flawn Sciences Building, 3.02.02, Main Campus
Chris Villanueva and other jazz faculty will perform standards in this concert. More details to come. The Fall 2021 concert schedule is subject to change. Please continue to monitor our website and social media for updates. This concert will be live-streamed via the UTSA Music Facebook page. https://www.facebook.com/UTSAMusic When:UTSA Recital Hall, Main Campus
UTSA Sustainability will have three courses of varying difficulty to accommodate different ages and abilities. There will a one mile walk on generally level surface to introduce you to the student run community garden, a longer walk with stairs and topo changes, and a five mile bike ride to introduce you to the Leon Greenway.Tito Bradshaw Bicycle Repair Shop Ximenes Ave, Main Campus
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