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.