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If the slab has a stiffness that is different in two directions (at right angles), then the deck is known and analyzed as an orthotropic deck. A beam and slab deck is one where the beams may deflect somewhat independently, and any transverse forces are carried in the deck. A cellular deck is one where a number of thin slabs and webs will ...
The same structural effects are also true of the concrete slab in a composite girder bridge, but the steel orthotropic deck is considerably lighter, and therefore allows longer span bridges to be more efficiently designed. Resistance to use of an orthotropic deck relates mainly to its cost of fabrication, due to the amount of welding involved.
Collapsed after a 10-ton truck crossed the bridge, which had a 5-ton limit. Old bridge remains at bottom of river. [33] Heron Road Bridge: Ottawa: Canada 10 August 1966: Concrete road bridge Collapsed during construction due to use of green lumber and the lack of diagonal bracing on the wooden support forms for concrete pour. 9 killed Rebuilt.
In the deck-type bridge, a wood, steel or reinforced concrete bridge deck is supported on top of two or more plate girders, and may act compositely with them. In the case of railroad bridges, the railroad ties themselves may form the bridge deck, or the deck may support ballast on which the track is laid.
Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. [1] No moments are transferred throughout the support, hence their structural type is known as simply supported. The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid
The deck is the roadway or walkway surface. In roadway applications it is usually a poured reinforced concrete slab, but can also be a steel grid or wood plank. The deck includes any road lanes, medians, sidewalks, parapets or railings, and miscellaneous items like drainage and lighting.
Snowfall totals have surpassed 5 feet in some areas, including Castorland, Copenhagen and Barnes Corners in northern New York, which have each received 69.5 inches. Lake-effect snow warnings ...
The original deck was a 5.5-inch (140 mm) thick reinforced concrete slab, with a mortar wearing surface 0.5 inches (13 mm) thick. [60] To facilitate maintenance, the bridge was designed with two 2.5-inch (64 mm) lines (carrying compressed air and potable water) extending from end to end.
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related to: deck slab in bridge base 5 feet- 3616 E Broad St, Columbus, OH · Directions · (614) 358-1791
