Carquinez Bridge joint near Vallejo showing premature wear

[ad_1] The California Department of Transportation says a seismic expansion joint on the westbound side of the San Francisco Bay Area’s Carquinez Bridge has premature wear.The San Francisco Chronicle reports that a Caltrans official explained the problem to an oversight panel Wednesday.The $240 million steel suspension span over the Carquinez Strait near Vallejo was completed […]

How and Why Bridges Are Made to Move

[ad_1] Everyone talks about the weather, but it falls to civil engineers to actually do something about it. Weather and temperature affect everything we use, from car batteries to bridges. When temperature causes changes in structure, it’s referred to as thermal expansion or thermal contraction, and it’s a phenomenon. you have to carefully control for […]