Coatings Industry News

Main News Page


Climate Change Could Quicken Bridge Deterioration

Wednesday, October 30, 2019

Comment | More

According to research led by Hussam Mahmoud, an engineer and Colorado State University associate professor in the Department of Civil and Environmental Engineering, climate change could accelerate the deterioration of aging U.S. infrastructure, which includes over 600,000 bridges.

The research has since been published by lead author Susan Palu—who recently graduated from CSU with a master’s degree in civil engineering—with co-author Mahmoud in PLoS ONE.

Climate Impact

Focusing on 80,000 steel girder bridges in the United States, Palu and Mahmoud chose to focus on the common design due to its frequently clogged expansion joints and regularly required maintenance. Additionally, expansion joints are directly affected by cool or hot air, which allow for the expansion and contraction of the structure.

Colorado State University

According to research led by Hussam Mahmoud, an engineer and Colorado State University associate professor in the Department of Civil and Environmental Engineering, climate change could accelerate the deterioration of aging U.S. infrastructure, which includes over 600,000 bridges.

According to CSU’s news release, when a joint becomes clogged, it can no longer allow the bridge to expand in the presence of higher temperatures. Due to this flaw, researchers reasoned that higher temperatures could lead to unpredicted thermal stress, which can cause buckling and cracking and would be worsened by bending from the weight of crossing vehicles in addition to axial loading from the restricted expansion.

In using projected temperature increases adopted by the International Panel on Climate Change in 2014 that predicted a “radiative concentration pathway” of greenhouse gas warming scenarios, the researchers considered four different seasonal scenarios in their study. Palu and Mahmoud chose to look at the temperatures were at the time of each bridge’s construction and the projected average temperatures for the years 2040, 2060, 2080 and 2100.

As a result of the study, the researchers found that bridges located in the northern portion of the U.S. are the most susceptible to more pronounced increases in temperatures, with the South- and Northeast regions being less affected by the impact of climate change.

“We as engineers must start to look beyond what we have initially been taught on how to analyze systems and start to think about what climate change is going to do to our understanding of component-level behavior and system-level performance,” Mahmoud said.

The researchers aim to rank bridges in order of necessary maintenance after accounting for climate change norms.

   

Tagged categories: Bridges; Bridges; Climate Control; Climate monitoring; Colleges and Universities; Deterioration; Engineers; NA; North America; Program/Project Management; Research; Temperature

Comment from David Faduski, (10/30/2019, 6:45 AM)

This article is complete and utter rubbish.


Comment from Dave Polovitz, (10/30/2019, 8:48 AM)

I agree. I'd love to see what they used for temperature data.....


Comment from suppiah chandrasekaran, (10/30/2019, 11:58 AM)

Clogged Expansion bridge joints are due to poor planning, design and detailing and should not be an excuse for engineering. Expansion joints should be located strategically to avoid collection of debris. Efficient surface drainage will extend bridge life span. I am intrigued with this climate change model that could predict temperatures in year 2100 and yet unfortunately we are unable to accurately predict temperatures for next two weeks. Alternatively, Engineers should explore bridge construction materials with low coefficient of thermal expansion 70-80 years life span of bridges are a good value.


Comment from Michael Symbolik, (10/30/2019, 9:10 PM)

Climate change is nothing more than a lie ! Here we go putting this Stupid now into the painting industry ! Let’s promote a Globalist Lie - one world order will save us all ??The Paris Accord ???? just today the scientific community said we’re going to have a iceage - hows that for thermal expansion or black body radiation - hope it doesn’t alter the string theory ... otherwise .. weather unless of coarse a buck can be made of this ??


Comment Join the Conversation:

Sign in to our community to add your comments.


Advertisements
 
DeFelsko Corporation

 
Fischer Technology Inc.

 
SAFE Systems, Inc.

 
KTA-Tator, Inc. - Corporate Office

 
Tarps manufacturing, Inc.

 
Sauereisen, Inc.

 
Modern Safety Techniques

 
NLB Corporation

 
HoldTight Solutions Inc.

 
ABKaelin, LLC

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy Policy   |   Terms & Conditions   |   Support   |   Site Map   |   Search   |   Contact Us