Engr. Saeed Ahmed Maitlo
Trusses
What is a trussa truss is an assembly of linear members connected together to form a triangle or triangles that convert all external forces into axial compression or tension in its members
Single or number of triangles
a triangle is the simplest stable shape
Joints assumed frictionless hinges
loads placed at joints
Primitive dwelling
heavy timber trusses
Rafter pair - Joistsimple roof constructionloading along rafters - bending
Simple Truss
Depthor
Rise Panel
Span
Flat Truss or Parallel Chord Truss
Vertical Diagonal
WebMembers(verticals & diagonals)
Top Chord
Bottom ChordJoint,Panel pointor Node
BowstringFlat Pratt Triangular Howe
Flat Howe Inverted Bowstring Simple Fink
Warren Fink
Camelback Triangular Pratt Cambered Fink
Scissors Shed
Lenticular
A truss provides depth with less material than a
beamIt can use small piecesLight open appearance (if seen)Many shapes possible
Multipanel TrussesSainsbury Centre
Norwich, England
Foster & PartnersAnthony Hunt Associates
Warren TrussesCentre Georges Pompidou
Paris
Piano & RogersOve Arup & Partners
Shaping Structures: Statics, W. Zalewski and E. Allen (1998)
Shaping Structures: Statics, W. Zalewski and E. Allen (1998)
3-Hinged Truss ArchesWaterloo Terminal for Chunnel Trains
Nicholas Grimshaw & PartnersAnthony Hunt Associates
Stadium AustraliaHomebush, Sydney, 1999
Bligh Lobb Sports ArchitectsSinclair Knight Merz (SKM) Modus Consulting Engineers
Truss Application in Biomedical
In medicine, a truss is a kind of surgical appliance, particularly one used for hernia patients. A truss provides support for the herniated area, using a pad and belt arrangement to hold it in the correct position
Truss Definition According to Medicaltruss (trs)n.1. Medicine A supportive device, usually a
pad with a belt, worn to prevent enlargement of a hernia or the return of a reduced hernia.
2.A rigid framework, as of wooden beams or metal bars, designed to support a structure, such as a roof.