TOMORROW'S ROADS TODAY - Maryland State Highway ...
TOMORROW'S ROADS TODAY - Maryland State Highway ...
TOMORROW'S ROADS TODAY - Maryland State Highway ...
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76<br />
Joint - A device connecting two or more adjacent parts of a structure. A roller joint allows adjacent parts<br />
to move controllably past one another. A rigid joint prevents adjacent parts from moving or rotating<br />
past one another.<br />
Keystone - The uppermost wedge-shaped voussoir at the crown of an arch that locks the other voussoirs<br />
into place.<br />
Knee Brace - Additional support connecting the deck with the main beam that keeps the beam from<br />
buckling outward. Commonly made from plates and angles.