What is the truss bridge?
The
faeces bridge is one of the oldest and strongest species of bridges. The basic design of the lattice beam consists of three basic ingredients: pier, chords and diagonal "websites" that give the lattice a significant appearance of the triangle. Sports struts, swinging reinforcements and winding of wind can also be more complicated.
At first glance, the lattice bridge seems to be a conglomeration of triangles connected together in a simplified mass. These triangles form the support structure of the truss construction, but the base of the lattice bridge consists of two or more straight horizontal beams called "chords". Smaller rays called "sites" combine larger rays at the angles of diagonal angles, giving the appearance of triangles mounted together in a huge puzzle. Piers form a bridge "legs" to keep it from the ground or water.
Truss engineering is the technology of the miracle of the bridge, with some very old bridges still in an excellent working condition. TroJúhaní websites of Betwdlého horizontal chords prevents chords from bending or bending. Unlike the arc bridge, the Truss Bridge does not support the bridge from below the road. Unlike the bridge, the bridge does not support the bridge above the road. The droppings bridge supports the structure itself by means of tension and compression to attract individual members into a fixed, solid and rigid structure.
The oldest and simplest type of lattice bridge is the King Post Truss. Two rays lean together to form a triangle. The triangle is based on a long parallel binding beam or chord. It hangs down from the top of the triangle to the chord is a strong tension rod. This type of truss beam is still used for short bridges and modern house construction and is best suited for a range of 35 feet (10.67 meters) or less.
The Queen Post Truss is a more complicated adaptation of the king post with a small square inside a large triangle. OtherThe sites form a firmer and stiffer structure capable of carrying heavier loads and a longer range of up to 70 feet (21.3 meters). In 1840, engineer William Howe developed his design Howe Truss, which combined more diagonal sites with two parallel chords. The Howe Truss load can handle a range of 150 feet (45.72 meters). Modern engineers have created numerous variations of a lattice bridge capable of mastering an even longer range.
Examples of lattice bridges abound in the world. The new Fork River bridge in Sublette County in Wyoming is a great example of The King Post Truss. In Thailand, the bridge over the Kwai River, built by imprisonment from World War II and popularized by the film of the same name, a steel trusse bridge. The stunning truss bridge called Navajo Bridge is located in Lees Ferry in Arizona. The Scottish Firtth of Forth Bridge, completed in 1890 and covers 350 feet (106.68 meters) is an example of a cantilever beam and the Chinese garden bridge in Shanghai's unique Camelback Cross.