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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 bridge is a single-span steel beam stringer bridge, resting on I-beam pile abutments with concrete wings. The bridge is 26 feet (7.9 m) long. Built in 1917, it was one of the first bridges built in the county by county employees, rather than by hired bridge companies, and predates the formation of state highway department by two years. [2]
Using fallen trees, stringer bridges can be built. Wood laminated by stress, glued, dowels, or nails lumber are good for panel bridges. New lumber and wood scavenged from buildings and railroad ties can be used to build stringer bridges. [3] A licensed engineer can help operators design a safe, appropriate timber bridge.
Falsework includes temporary support structures for formwork used to mold concrete [1] in the construction of buildings, bridges, and elevated roadways. The British Standards of practice for falsework, BS 5975:2008, defines falsework as "Any temporary structure used to support a permanent structure while it is not self-supporting."
The bridges are also known as Little Lithodendron Bridge and Lithodendron Bridge. A timber stringer bridge was the cheapest way to span spaces like arroyos. It consists of parallel timber logs laid across timber pile bents. [1] These were by far the most common bridge type built in the state of Colorado, for example, historically. [1]
In French, a rudimentary simple suspension bridge is known by one of three names, depending on its form: pont himalayen ("Himalayan bridge": a single footrope and handrails on both sides, usually without a deck); pont de singe ("monkey bridge: a footrope with overhead rope); and tyrolienne ("Tyrolean": a zip-line). [22]
When a bridge deck is installed in a through truss, it is sometimes called a floor system. [1] A suspended bridge deck will be suspended from the main structural elements on a suspension or arch bridge. On some bridges, such as a tied-arch or a cable-stayed, the deck is a primary structural element, carrying tension or compression to support ...
Reinforced Concrete Bridges in Montana, 1900–1958 MPS: Dearborn River High Bridge: 1897 2003-12-18 Augusta: Lewis and Clark: Pratt half-deck truss Flathead River Bridge: 1912 2010-7-17 Columbia Falls vicinity: Flathead: Forsyth Bridge: 1905, 1939