Pratt Truss Gatton Railway Bridge

Pratt Truss Gatton Railway Bridge

Description

Pratt truss design on Gatton Railway Bridge over Lockyer Creek

Author Link

https://commons.wikimedia.org/wiki/User:Kgbo

Author Description

Kgbo

Licence

Creative Commons Attribution-Share Alike 3.0 Unported

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Pratt Truss Bridge

A pratt truss bridge design includes vertical components and diagonals that slope down towards the center. It was invented in 1844 by Thomas and Caleb Pratt. It was a common solution for railroad bridges when wood truss elements were replaced for metal. Here you can learn more about its history, its basic capabilities, and some of its most famous bridges that use it.

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There are three main bridge areas which include all the basic components of bridge: Foundation, Substructure, and Superstructure. Bridges are complex structures, and since they can be made with many different materials and truss types, their components are almost too numerous to count. Here you can get informed about basic bridge parts and components.

Culvert

Culvert is a structure, usually of tunnel type that carries a stream or open drain under a road, railroad or any other obstruction from one side to the other side. Materials which can be used for culverts include a reinforced concrete, pipe or other material that have good performance when is embedded and surrounded by soil.

Moveable Bridges

First moveable bridges were built to prevent the enemy to reach the gates of the castle. Today they are made at places where a cheap bridge is needed but there is also a need for an unobstructed river traffic. Read more about different types of movable bridges.