2024 Houston Storm Showed That Skyscrapers Built To Withstand Hurricanes Highly Vulnerable To Derechos
Skyscrapers built to withstand major hurricanes fare much more poorly in less powerful windstorms known as derechos, researchers have found, raising questions for cities worldwide over the resilience of tall buildings as the climate emergency worsens.
A team from Florida International Universitys (FIU) civil and environmental engineering department studied the unexpectedly severe damage caused to buildings in Houston, a city with 50 skyscrapers of 492ft (150 metres) or more, during the 16 May 2024 derecho. They found that the storms long line of fast-moving thunderstorms spawned downburst winds peaking at 90mph that bounced off the buildings and inflicted considerable damage, especially to the facades of structures designed to withstand stronger, category 4 hurricane-force wind speeds of up to 156mph.
The same buildings, by contrast, were virtually unscathed during category 1 Hurricane Beryl in July, when sustained wind speeds were similar to those of the earlier derecho, but without their more erratic, up and down nature, or explosive bursts at or near ground level.
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The FIU analysis focused on Houstons Chevron Building Auditorium, CenterPoint Energy Plaza, El Paso Energy Building, RRI Energy Plaza, and Wedge International Tower, all built between 1962 and 2003 and between 518ft and 742ft tall. Construction standards require them to withstand winds up to 67 metres per second, or category 4 hurricane strength. During last years derecho, facade panels were dislodged and cladding damaged, especially on corners and lower floors. Broken glass and other hazardous debris fell on to downtown streets and the aftermath brought significant socio-economic impacts including traffic disruptions, businesses temporarily closing, and a huge bill for clean-up and repairs.
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https://www.theguardian.com/us-news/2025/feb/21/hurricane-proof-skyscrapers-derechos-study