types of trusses
TRANSCRIPT
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GCUF
Engr,,
Muzammar CHEEMA
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WHAT IS TRUSS?A framework composed of members joined at their
ends to form a rigid structure, built from basic
triangles in the manner described is known as truss or
simple truss.
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TYPES OF TRUSSES
Trusses can be mainly divided into two types: Bridge Trusses. Roof Trusses.
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TYPES OF BRIDGE TRUSSES
• PRATT BRIDGE TRUSS• HOWE BRIDGE TRUSS• BALTIMORE BRIDGE
TRUSS• K BRIDGE TRUSS• WARREN BRIDGE TRUSS• BAILEY BRIDGE TRUSS.
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It includes vertical members and diagonals that slope down towards the center.
PRATT BRIDGE TRUSS
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HOWE BRIDGE TRUSS
It includes vertical members and diagonals that
slope up towards the center.
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A Baltimore truss has
additional bracing in the
lower section of the truss to
prevent buckling in the
compression members and
to control deflection
BALTIMORE BRIDGE TRUSS
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K-BRIDGE TRUSS
A truss in the form of a K due to the orientation of the vertical member and two oblique members in each panel is known as a K bridge truss.
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PICTURE OF K-BRIDGE TRUSS
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It consists of longitudinal
members joined only by
angled cross-members,
forming alternately inverted
equilateral triangle-shaped
spaces along its length.
WARREN BRIDGE TRUSS
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It is designed for military
use, the prefabricated and
standardized truss elements
may be easily combined in
various configurations to
adapt to the needs.
BAILEY BRIDGE TRUSS
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ROOF BRIDGE TRUSSES
• PRATT ROOF TRUSS• FINK ROOF TRUSS•HOWE ROOF TRUSS•WARREN ROOF TRUSS•KING POST ROOF
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It uses vertical member
for compression and
horizontal members to
respond to tension and is
most efficient under static
and vertical loading.
PRATT R OO F TR U SS
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They are used for longer
spans having high pitch
roof, since the web
members in such truss are
sub-divided to obtain
shorter members
FINK ROOF TRUSS
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It is a roof truss with
vertical web members
to take tension forces
and with angled braces
to take compression
HOWE ROOF TRUSS
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In warren roof truss
diagonal members are
alternatively in tension
and compression and are
used in a building ranging
from 20-100m in length.
WARREN ROOF TRUSS
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A king post extends
vertically from a crossbeam to
the apex of a triangular truss.
It connects the apex of the
truss with its base, holding up
the tie beam (in tension) at
the base of the truss.
FINK HOWE ROOF TRUSS
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ANY QUESTION
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