{"id":3882,"date":"2026-05-06T06:00:00","date_gmt":"2026-05-06T11:00:00","guid":{"rendered":"https:\/\/okdiario.com\/techy\/en\/?p=3882"},"modified":"2026-05-05T19:30:32","modified_gmt":"2026-05-06T00:30:32","slug":"scientists-create-a-steel-cylinder-filled-with-spheres-that-reduces-earthquake-damage-in-buildings-and-bridges-without-needing-electricity","status":"publish","type":"post","link":"https:\/\/okdiario.com\/techy\/en\/scientists-create-a-steel-cylinder-filled-with-spheres-that-reduces-earthquake-damage-in-buildings-and-bridges-without-needing-electricity\/3882\/","title":{"rendered":"Scientists create a steel cylinder filled with spheres that reduces earthquake damage in buildings and bridges without needing electricity"},"content":{"rendered":"\n<p>When an earthquake hits, the power often fails right when you need it most. A newly granted U.S. patent for a University of Sharjah device lays out a friction-based system that aims to blunt shaking in buildings, bridges, and sensitive equipment, without needing electricity.<\/p>\n\n\n\n<p>The pitch is bigger than structural safety. Fewer cracked walls can also mean fewer emergency rebuilds, less debris hauling, and less demand for carbon-heavy materials like <a href=\"https:\/\/okdiario.com\/techy\/en\/a-3d-printed-roadside-gadget-may-be-about-to-do-what-marijuana-enforcement-has-failed-to-solve-for-years-and-drivers-are-the-real-story\/3242\/\">cement<\/a> and steel. That is where earthquake engineering starts to look like climate policy.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A \u201cmechanical tree\u201d that stays on during blackouts<\/h2>\n\n\n\n<p>The patent, listed as US 12,498,014 B2, describes a hollow cylinder packed with solid balls and a central shaft that carries short rods protruding outward. The application was filed in August 2022 and published earlier in 2024 before the patent was granted in December 2025.<\/p>\n\n\n\n<div class=\"gb-element-a00da4e5\">\n<div><div class=\"gb-looper-46613eed\">\n<div class=\"gb-loop-item gb-loop-item-a8390598 post-3887 post type-post status-publish format-standard has-post-thumbnail hentry category-military-defense resize-featured-image\">\n<h4 class=\"gb-text gb-text-24a51617\">Also Read: <a href=\"https:\/\/okdiario.com\/techy\/en\/russias-new-banderol-missile-appears-in-leaked-diagrams-with-a-jet-drone-body-and-a-speed-that-could-reach-500-km-h\/3887\/\">Russia\u2019s new \u201cBanderol\u201d missile appears in leaked diagrams, with a jet-drone body and a speed that could reach 500 km\/h<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<p>The setup looks almost like a metal tree trunk with branches, except the whole thing lives inside a tube. As the structure vibrates, the shaft slides and the rods force their way through the steel balls, generating friction that dissipates some of the <a href=\"https:\/\/okdiario.com\/techy\/en\/china-launches-a-flying-wind-turbine-2000-meters-into-the-sky-generates-power-for-the-grid-and-promises-energy-at-one-tenth-the-cost-of-conventional-wind\/3865\/\">energy<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What a 14% damping result can and cannot say<\/h2>\n\n\n\n<p>In the University of Sharjah announcement, inventor Moussa Leblouba says lab tests produced an effective damping ratio of about 14% for a purely passive system. He also says the early results were consistent across displacement amplitudes of about 1 to 5 mm.<\/p>\n\n\n\n<p>Is that enough to \u201csave\u201d a building? Not by itself, and Leblouba is not claiming it is. The next step, according to the same announcement, is scaling up and moving into more realistic seismic loading and shake-table testing, while adjusting rod arrangements and ball size to fit different jobs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The climate case hiding in the rubble<\/h2>\n\n\n\n<p>If you have ever watched a street get dug up, you know how quickly construction turns into noise, dust, and diesel exhaust. UNEP says the buildings and construction sector consumes about 32% of global energy and contributes about 34% of global CO2 emissions, and it is also a major source of construction waste.<\/p>\n\n\n\n<p>Materials are a big reason why. Research often estimates <a href=\"https:\/\/www.nature.com\/articles\/s41597-024-04234-8\" target=\"_blank\" rel=\"noopener\">cement production<\/a> at about 7% to 8% of global CO2 emissions, and UNEP points out that cement and steel together are responsible for about 18% of global emissions overall.<\/p>\n\n\n\n<p>Earthquakes layer on top of that, in ways most climate inventories do not track. <\/p>\n\n\n\n<p>A peer-reviewed GEM Foundation analysis estimates Europe\u2019s earthquake-exposed building stock embodies nearly 13.4 billion tons of CO2e and that seismic damage generates more than 6.4 million tons of CO2e each year through repair and replacement, which the authors compare to 32,000 one-way flights from Paris to New York.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why retrofit is a business story<\/h2>\n\n\n\n<p>A key practical claim is that the system can be retrofitted into existing structures, instead of being designed in from day one. <\/p>\n\n\n\n<p>That matters because so much of the built environment is already here, and UNEP notes that about 50% of the <a href=\"https:\/\/okdiario.com\/techy\/en\/goodbye-to-ordinary-bricks-because-china-wants-buildings-to-grow-solar-skin-on-their-walls-and-turn-cities-into-giant-power-machines\/3484\/\">buildings <\/a>to be standing in 2050 have not been built yet, which makes both retrofit and better new construction part of the same puzzle.<\/p>\n\n\n\n<div class=\"gb-element-7574a546\">\n<div><div class=\"gb-looper-ef6a05fe\">\n<div class=\"gb-loop-item gb-loop-item-7fcf1415 post-3865 post type-post status-publish format-standard has-post-thumbnail hentry category-tech resize-featured-image\">\n<h4 class=\"gb-text gb-text-4f513e80\">Also Read: <a href=\"https:\/\/okdiario.com\/techy\/en\/china-launches-a-flying-wind-turbine-2000-meters-into-the-sky-generates-power-for-the-grid-and-promises-energy-at-one-tenth-the-cost-of-conventional-wind\/3865\/\">China launches a flying wind turbine 2,000 meters into the sky, generates power for the grid and promises energy at one-tenth the cost of conventional wind\u00a0<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<p>The other claim is maintenance. In the patent language and in the University of Sharjah release, the components are designed to be separable and replaceable, so one damaged part does not automatically mean scrapping the whole system. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1800\" height=\"1013\" src=\"https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive.jpg\" alt=\"A cross-section diagram of a hollow steel cylinder filled with solid metal spheres and a central rod system designed to absorb seismic vibrations.\" class=\"wp-image-3884\" title=\"\" srcset=\"https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive.jpg 1800w, https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive-300x169.jpg 300w, https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive-768x432.jpg 768w, https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive-1536x864.jpg 1536w, https:\/\/okdiario.com\/techy\/en\/wp-content\/uploads\/2026\/05\/steel-cylinder-spheres-reduces-earthquake-damage-passive-150x84.jpg 150w\" sizes=\"auto, (max-width: 1800px) 100vw, 1800px\" \/><figcaption class=\"wp-element-caption\">A newly patented friction-based device from the University of Sharjah uses a steel cylinder and internal spheres to protect buildings and infrastructure from earthquake damage without relying on electricity.<\/figcaption><\/figure>\n\n\n\n<p>For infrastructure owners, that can translate into less downtime and a lower replacement burden after a major event.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A defense angle on resilient infrastructure<\/h2>\n\n\n\n<p>Leblouba argues the same approach can protect more than just concrete and steel frames. The University of Sharjah release lists potential uses for electrical and communications installations, vehicles, aircraft, ships, aerospace systems, and sensitive scientific or military equipment that can be damaged by shock and vibration.<\/p>\n\n\n\n<div class=\"gb-element-fc654864\">\n<div><div class=\"gb-looper-126d438d\">\n<div class=\"gb-loop-item gb-loop-item-7e22cebb post-3861 post type-post status-publish format-standard has-post-thumbnail hentry category-tech resize-featured-image\">\n<h4 class=\"gb-text gb-text-219b4e37\">Also Read: <a href=\"https:\/\/okdiario.com\/techy\/en\/americas-concorde-successor-is-now-two-years-from-production-promises-1122-mph-flights-and-could-bring-back-supersonic-travel-after-more-than-two-decades\/3861\/\">America\u2019s Concorde successor is now two years from production, promises 1,122 mph flights and could bring back supersonic travel after more than two decades\u00a0<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<p>That overlap is easy to miss, but it is real. Civilian communities and defense operations often share the same ports, bridges, and power corridors, so resilience upgrades can have shared benefits when a region is hit hard.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What happens next<\/h2>\n\n\n\n<p>Now come the questions engineers and buyers will ask first: how the design scales, how it performs after repeated strong shaking, and how easily it can be certified under building codes and inspection rules.<\/p>\n\n\n\n<p>If the concept holds up, the environmental payoff could be indirect but meaningful\u2013fewer emergency rebuilds, fewer truckloads of debris, and less demand for carbon-intensive materials after disasters.&nbsp;<\/p>\n\n\n\n<p>The press release was published on <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1118689\" target=\"_blank\" rel=\"noopener\"><em>EurekAlert<\/em><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When an earthquake hits, the power often fails right when you need it most. A newly granted U.S. patent for &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Scientists create a steel cylinder filled with spheres that reduces earthquake damage in buildings and bridges without needing electricity\" class=\"read-more button\" href=\"https:\/\/okdiario.com\/techy\/en\/scientists-create-a-steel-cylinder-filled-with-spheres-that-reduces-earthquake-damage-in-buildings-and-bridges-without-needing-electricity\/3882\/#more-3882\" aria-label=\"Read more about Scientists create a steel cylinder filled with spheres that reduces earthquake damage in buildings and bridges without needing electricity\">Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":3883,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-3882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","resize-featured-image"],"_links":{"self":[{"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/posts\/3882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/comments?post=3882"}],"version-history":[{"count":2,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/posts\/3882\/revisions"}],"predecessor-version":[{"id":3886,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/posts\/3882\/revisions\/3886"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/media\/3883"}],"wp:attachment":[{"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/media?parent=3882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/categories?post=3882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/okdiario.com\/techy\/en\/wp-json\/wp\/v2\/tags?post=3882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}