A new computational model developed by researchers at MIT takes ambient vibrations and analyzes them to pick out features in the noise to give indications of a building’s stability, MIT News reports. The feedback can then be used to monitor the building for damage or mechanical stress. Think of it as getting your blood pressure or cholesterol checked regularly to find warning signs of future problems before they become too dire.
The model is being tested on the tallest building on the MIT campus, the 21-story Green Building, a research building made of reinforced concrete. The researchers attached 36 accelerometers to selected floors from the building’s foundation to its roof to record vibrations.
But in order for these recordings to actually serve a purpose, the team needed to figure out how to take the data and link it to the health characteristics of the building, according to Oral Buyukozturk, a professor in MIT’s Department of Civil and Environmental Engineering.
Their solution was to create a computer simulation of the Green Building as a finite element model. MIT News describes this type of model as “a numerical simulation that represents a large physical structure, and all its underlying physics, as a collection of smaller, simpler subdivisions.” The researchers then added parameters to the model, such as the strength and density of concrete walls, slabs, beams, and stairs in each floor.
With all of this done, the researchers are able to then add something like the vibration caused by a passing truck to the simulation in order to see how the model predicts the building and its elements would respond. To make the model as accurate as possible, data from the Green Building's accelerometers was mined and analyzed for key features relating to the building’s stiffness and other indicators of health.
The more data that is added over time, the more intelligent the system becomes. The researchers say they are confident that any real life damage in the building will show up in the system.
This type of model will be especially useful to immediately see, after an event such as an earthquake, if and where there is damage to the building.
The researchers’ vision is for a system such as this to be outfitted on all tall buildings, making them intelligent enough to monitor their own health and provide increased resiliency.
Related Stories
| Mar 7, 2014
Thom Mayne's high-tech Emerson College LA campus opens in Hollywood [slideshow]
The $85 million, 10-story vertical campus takes the shape of a massive, shimmering aircraft hangar, housing a sculptural, glass-and-aluminum base building.
| Mar 4, 2014
How EIFS came to America
Design experts from Hoffmann Architects offer a brief history of exterior insulation and finish systems in the U.S.
| Feb 20, 2014
5 myths about cross laminated timber
A CLT expert clears up several common misconceptions and myths surrounding the use of wood as a building material.
| Feb 19, 2014
Harvard's 'termite robots' can build any thing, any way [video]
The robots build by observing thier environment and then obeying a set of traffic rules programmed by researchers.
| Feb 14, 2014
Scrap tires used to boost masonry blocks at Missouri University of S&T
Research could lead to blocks that use waste material and have seismic and insulating benefits.
| Feb 14, 2014
The Technology Report 2014: Top tech tools and trends for AEC professionals
In this special five-part report, Building Design+Construction explores how Building Teams throughout the world are utilizing advanced robotics, 3D printers, drones, data-driven design, and breakthroughs in building information modeling to gain efficiencies and create better buildings.
| Feb 14, 2014
Crowdsourced Placemaking: How people will help shape architecture
The rise of mobile devices and social media, coupled with the use of advanced survey tools and interactive mapping apps, has created a powerful conduit through which Building Teams can capture real-time data on the public. For the first time, the masses can have a real say in how the built environment around them is formed—that is, if Building Teams are willing to listen.
| Feb 13, 2014
University officials sound off on net zero energy buildings
As part of its ongoing ZNE buildings research project, Sasaki Associates, in collaboration with Buro Happold, surveyed some 500 campus designers and representatives on the top challenges and opportunities for achieving net-zero energy performance on university and college campuses.
| Feb 12, 2014
First Look: Futuristic Silicon Valley campus designed to draw tech startups
The curved campus will consist of four different buildings, one exclusively for amenities like a coffee bar, bike shop, and bank.
| Feb 11, 2014
Adobe Photoshop update features new 3D printing capabilities
Available as part of an update to Photoshop Creative Cloud, the tool enables users to easily and reliably build, refine, preview, prepare, and print 3D designs.
