A phenomenon known as “underground climate change” can lead to damage of building foundations and civil infrastructure, according to a researcher at Northwestern University.
When the ground gets hotter, it can expand and contract, causing foundations to move and sometimes crack. The Northwestern study focused on Chicago, which has a predominately clay subsurface that can contract when heated.
The concern is not limited to the Windy City, though, as many other urban zones contain fine-grained soils that are vulnerable to such deformations. Cities are more likely than rural areas to feel the effects of underground climate change because construction materials trap heat that is transferred below ground. The research team found temperatures under the densely developed Chicago Loop were often 10 degrees Celsius warmer than those under Grant Park.
Underground climate change will not cause sudden failure like a building collapse, rather it is a slow process that degrades structures over the years. To counteract this trend, building teams can reduce the amount of heat entering the ground by installing thermal insulation.
Related Stories
Sponsored | BD+C University Course | Apr 19, 2022
Multi-story building systems and selection criteria
This course outlines the attributes, functions, benefits, limits, and acoustic qualities of composite deck slabs. It reviews the three primary types of composite systems that represent the full range of long-span composite floor systems and examines the criteria for their selection, design, and engineering.
Wood | Apr 13, 2022
Mass timber: Multifamily’s next big building system
Mass timber construction experts offer advice on how to use prefabricated wood systems to help you reach for the heights with your next apartment or condominium project.
AEC Tech Innovation | Mar 9, 2022
Meet Emerge: WSP USA's new AEC tech incubator
Pooja Jain, WSP’s VP-Strategic Innovation, discusses the pilot programs her firm’s new incubator, Emerge, has initiated with four tech startup companies. Jain speaks with BD+C's John Caulfield about the four AEC tech firms to join Cohort 1 of the firm’s incubator.
Codes and Standards | Feb 21, 2022
More bad news on sea level rise for U.S. coastal areas
A new government report predicts sea levels in the U.S. of 10 to 12 inches higher by 2050, with some major cities on the East and Gulf coasts experiencing damaging floods even on sunny days.
Resiliency | Feb 15, 2022
Design strategies for resilient buildings
LEO A DALY's National Director of Engineering Kim Cowman takes a building-level look at resilient design.
Sponsored | Steel Buildings | Jan 25, 2022
Multifamily + Hospitality: Benefits of building in long-span composite floor systems
Long-span composite floor systems provide unique advantages in the construction of multi-family and hospitality facilities. This introductory course explains what composite deck is, how it works, what typical composite deck profiles look like and provides guidelines for using composite floor systems. This is a nano unit course.
Sponsored | Reconstruction & Renovation | Jan 25, 2022
Concrete buildings: Effective solutions for restorations and major repairs
Architectural concrete as we know it today was invented in the 19th century. It reached new heights in the U.S. after World War II when mid-century modernism was in vogue, following in the footsteps of a European aesthetic that expressed structure and permanent surfaces through this exposed material. Concrete was treated as a monolithic miracle, waterproof and structurally and visually versatile.
Sponsored | Resiliency | Jan 24, 2022
Norshield Products Fortify Critical NYC Infrastructure
New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.
Sponsored | Resiliency | Jan 24, 2022
Blast Hazard Mitigation: Building Openings for Greater Safety and Security
Microgrid | Jan 16, 2022
Resilience is what makes microgrids attractive as back-up energy controls
Jacobs is working with clients worldwide to ensure mission critical operations can withstand unexpected emergencies.
