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The Pittsburgh-Des Moines Steel Company (originally the Des Moines Bridge and Iron Company), and often referred to as Pitt-Des Moines Steel or PDM was an American steel fabrication company. It operated from 1892 until approximately 2002 when its assets were sold to other companies, including Chicago Bridge & Iron Company .
If horizontal thrust is generated but the apex of the arch is a pin joint, this is termed as a three-hinged arch. If no hinge exists at the apex, it will normally be a two-hinged arch . In The Iron Bridge shown below, the structure of each frame emulates the kind of structure that previously had been made of wood .
This type of bridge comprises an arch where the deck is completely above the arch. The area between the arch and the deck is known as the spandrel. If the spandrel is solid, usually the case in a masonry or stone arch bridge, the bridge is called a closed-spandrel deck arch bridge. If the deck is supported by a number of vertical columns rising ...
Pages in category "Deck arch bridges" The following 161 pages are in this category, out of 161 total. This list may not reflect recent changes. A. Abdal Bridge (Bursa)
Pages in category "Open-spandrel deck arch bridges" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. ...
A hinged arch bridge is one with hinges incorporated into its structure to allow movement. In structural engineering, a hinge is essentially a "cut in the structure" that can withstand compressive forces. In a steel arch the hinge allows free rotation, [2] somewhat resembling a common hinge. The most common hinged arch bridge varieties are the ...
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3579 S High St, Columbus, OH · Directions · (614) 409-0683