cocret and woods. also various metals of stanless steel.
Well, as far as I know, the beam bridge is inefficient compared to other bridges. Single piece beam bridges made from wood or any other easily bent material deflects.
A beam bridge consists of a horizontal beam that is supported at each end by vertical piers or abutments. The beam carries the load applied to it, distributing the weight to the supports. This type of bridge is simple in design and is commonly used for short spans due to its straightforward construction and cost-effectiveness. However, it may not be suitable for longer distances without additional support.
The sister beam plays a crucial role in the construction of the new bridge as it provides additional support and strength to the structure. It helps distribute the weight of the bridge more evenly, increasing its stability and durability. This ensures that the bridge can safely carry heavy loads and withstand various environmental factors, making it a key component in ensuring the overall safety and longevity of the bridge.
The different between suspension bridge and beam bridge are beam bridge are for short distance but suspension bridge for long distance. Beam bridge are used for highway passes and suspension bridge for wide waterway passes.
A suspension bridge deck is suspended from above on a catenary cable between two fixed points. The Golden Gate Bridge is a suspension bridge. Using suspension techniques, great spans with minimum obstruction under can be created. A beam or truss (reinforced beam) bridge deck is supported from underneath on a construction of beams or arches (bent beams). longer, stronger spans favour the beam truss method of construction, especially where wind generated sway is an issue. The Sydney Harbour Bridge is a Beam/Truss bridge.
Danyang-Kunshan Grand Bridge is the longest beam bridge in the world and is approx 164.8 kilometres long.
beam and tunnel
An example of a beam bridge is Chesapeake Bay bridge-tunnel Site: http://www.pbs.org/wgbh/buildingbig/bridge/index.html
beam bridge
Well with a beam it allows the bridge to support the bridge
beam
bottom of the beam