(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.
The Racial Justice Book Club was established at UTSA by members of the campus community to explore social justice following acts of racial violence across the nation over the last few years. We are reading The Injustice Never Leaves You: Anti-Mexican Violence in Texas by Monica Muñoz Martinez. We will meet every Wednesday in September and October at 2 pm on Zoom.Virtual Event
Celebrate Hispanic Heritage Month at our very own street fair - Calle UTSA. We will have activities, performances, food, music, and piñatas to break open.Student Union Paseo
"La Plática" is a space for thoughtful dialogue to build a sense of connection among the Roadrunner Community by getting to know each other better and sharing what's on our minds and about ourselves to increase to increase awareness of diverse perspectives.Virtual Event
This September 30, the Friday Series will feature Prof. Milena Ang, who will be presenting A Tren to Nowhere: Statistic Development and the Politics of Racial, a paper co-authored with Tania Islas-Weistein where they discuss Mexico's long history of state-led development projects that contribute to economic and racial inequality. The authors argue that despite professing racial justice, official discourses surrounding the Tren Maya reproduce existing symbolic and material forms of racism.McKinney Humanities (MH 4.01.01,) Main Campus
We invite you to learn about the process of screenwriting and explore the intersection of identity and pursuing dreams from Jorge Ramirez-Martinez and Raymond Perez, screenwriters for the Selena: The Series, released on Netflix. They will discuss their careers and writing process, including how their identities as Mexican American and gay men have shaped their professional experiences.Virtual Event
Please join us in remembering those who have entered the next part of life by designing a nicho box in their memory. This workshop will provide the necessary items to create your nicho box, though please remember to bring a photo or small object that can fit in a 3.5 x5x1 inch box (small jewelry box).John Peace Library GroupSpot B, Main Campus
LMSA invites you to join us in celebrating National Hispanic Heritage Month through an interactive cooking lesson! This cultural experience will teach you how to prepare a popular Mexican dish, street taquitos. You will be able to sample this dish and learn the recipe to use in your own home.Recreation Wellness Center Demo Kitchen
The University of Texas at San Antonio is dedicated to the advancement of knowledge through research and discovery, teaching and learning, community engagement and public service. As an institution of access and excellence, UTSA embraces multicultural traditions and serves as a center for intellectual and creative resources as well as a catalyst for socioeconomic development and the commercialization of intellectual property - for Texas, the nation and the world.
To be a premier public research university, providing access to educational excellence and preparing citizen leaders for the global environment.
We encourage an environment of dialogue and discovery, where integrity, excellence, inclusiveness, respect, collaboration and innovation are fostered.
UTSA is a proud Hispanic Serving Institution (HSI) as designated by the U.S. Department of Education.
The University of Texas at San Antonio, a Hispanic Serving Institution situated in a global city that has been a crossroads of peoples and cultures for centuries, values diversity and inclusion in all aspects of university life. As an institution expressly founded to advance the education of Mexican Americans and other underserved communities, our university is committed to ending generations of discrimination and inequity. UTSA, a premier public research university, fosters academic excellence through a community of dialogue, discovery and innovation that embraces the uniqueness of each voice.