SUBJECT analysis of structure

2. GCUF
Engr,,
Muzammar CHEEMA

3. 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.

4. TYPES OF TRUSSES
Trusses can be mainly divided into two types:
 Bridge Trusses.
 Roof Trusses.

5. TYPES OF BRIDGE TRUSSES
• PRATT BRIDGE TRUSS
• HOWE BRIDGE TRUSS
• BALTIMORE BRIDGE TRUSS
• K BRIDGE TRUSS
• WARREN BRIDGE TRUSS
• BAILEY BRIDGE TRUSS.

6. It includes vertical
members and
diagonals that slope
down towards the
center.
PRATT BRIDGE TRUSS

7. HOWE BRIDGE
TRUSS
It includes vertical
members and
diagonals that slope
up towards the
center.

8.  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

9. 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.

10. PICTURE OF K-BRIDGE
TRUSS

11.  It consists of
longitudinal members
joined only by angled
cross-members, forming
alternately inverted
equilateral triangle-shaped
spaces along its length.
WARREN BRIDGE TRUSS

12.  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

13. ROOF BRIDGE TRUSSES
• PRATT ROOF TRUSS
• FINK ROOF TRUSS
• HOWE ROOF TRUSS
• WARREN ROOF TRUSS
• KING POST ROOF

14.  It uses vertical member
for compression and
horizontal members to
respond to tension and is
most efficient under static
and vertical loading.
PRATT ROOF TRUSS

15.  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

16. It is a roof truss with
vertical web members to
take tension forces and
with angled braces to
take compression
HOWE ROOF TRUSS

17.  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

18.  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

19. ANY QUESTION