Search results
Results from the WOW.Com Content Network
An open-deck railway bridge in Leflore County, Mississippi. A railway bridge with its track and ties supported on load carrying elements of the superstructure (floor beams, stringers or girders) is called an open deck. When the track rests upon ballast, which is then carried by the superstructure of the bridge, it is called a ballasted deck.
Floor beams extend between the parallels of a chord and are used to support the stringers and decking. Floor beams may sit atop the chord below them, or they may be hung from the vertical posts. Floor beams generally have the greatest depth of any beam in the bridge. Floor beams are usually placed where two panels meet.
The orthotropic deck may be integral with or supported on a grid of deck framing members, such as transverse floor beams and longitudinal girders. All these various choices for the stiffening elements, e.g., ribs, floor beams and main girders, can be interchanged, resulting in a great variety of orthotropic panels.
Stringer: Steel beam that ties caps together Top cap: Steel Beam Post: steel pipe or 12×12 lumber. Bottom cap: steel beam Wedge pack: 4×4 lumber cut into wedges for falsework adjustment, various lumber sizes include 2×6s and plywood Corbel: distribute load to pads. Typical material is 12×12 lumber and steel beams Pad: distribute load to ground.
The term "girder" is typically used to refer to a steel beam. In a beam or girder bridge, the beams themselves are the primary support for the deck, and are responsible for transferring the load down to the foundation. Material type, shape, and weight all affect how much weight a beam can hold.
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
Through arch bridge: Beam bridge (Integral beam bridge) [1] Log bridge (beam bridge) Viaduct: Cavity wall viaduct Bowstring arch: Box girder bridge: Cable-stayed bridge: 1,104 m (Russky Bridge, Vladivostok, Primorsky Krai, Russian Far East) 10,100 m (Jiashao Bridge, Zhejiang, China) Cable-stayed suspension bridge hybrid Cable-stayed bridge and ...
A stub-girder system (or stub girder system) is a model of steel frame structures consisting of beams and decking, originally developed in the early 1970s in part by Joseph Colaco of Ellisor Engineers Inc.. [1] [2] Short lengths of stub girders the same depth as the floor beams are welded to the tops of the main girders to provide a connection ...