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Truss
A truss is a structure comprising one or more triangular units constructed with
straight slender members whose ends are connected at joints referred to as
nodes. There are two basic types of truss:
Some of the most common types of trusses include:
A truss is a structure comprising one or more triangular units constructed with
straight slender members whose ends are connected at joints referred to as
nodes. There are two basic types of truss:
- The pitched truss, or common truss, characterized by its triangular shape is
most often used for roof construction\ - The parallel chord truss, or flat truss, gets its name from its parallel top and
bottom chords is often used for floor construction.
Some of the most common types of trusses include:
respond to tension. The Southern Pacific Railroad bridge, in Tempe, Arizona
is a 1291 foot long bridge built in 1912 composed of nine Pratt truss spans of
varying lengths.
King Post Truss, one of the simplest truss styles to implement, consists of two
angled supports leaning into a common vertical support.
Queen Post Truss
The queen post truss is similar to the King post truss but has the horizontal
extension at the centre which relies on beam action to provide mechanical
stability. This truss style is only suitable for relatively short spans. [9]
Town's lattice truss is an alternative to heavy-timber bridges and uses easy to
handle planks arranged diagonally with short spaces in between them.
The Vierendeel truss, with rectangular openings vs triangular ones, is higher
cost but as there is no diagonal bracing, the creation of rectangular openings
for windows and doors is simplified
is a 1291 foot long bridge built in 1912 composed of nine Pratt truss spans of
varying lengths.
King Post Truss, one of the simplest truss styles to implement, consists of two
angled supports leaning into a common vertical support.
Queen Post Truss
The queen post truss is similar to the King post truss but has the horizontal
extension at the centre which relies on beam action to provide mechanical
stability. This truss style is only suitable for relatively short spans. [9]
Town's lattice truss is an alternative to heavy-timber bridges and uses easy to
handle planks arranged diagonally with short spaces in between them.
The Vierendeel truss, with rectangular openings vs triangular ones, is higher
cost but as there is no diagonal bracing, the creation of rectangular openings
for windows and doors is simplified
time required and the lead-time to get the truss pre-fabricated off-site. Also, no field modification is
possible.
possible.