Cable-supported structures
Supervised By:
Asst.ProfMr. Niazy R. Maroof
Presentation By:
Zhala S. Hasan
3rd
Stage
Erbil Polytechnic University
Erbil Technology College
Construction and Materials
Technology Engineering
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what is cable
structure?
Acable structure can be defined
as a structure in which a cable
or cable system is used as a
structural element to withstand
the initial load. Cable means any
structural element whose
diameter is very small in relation
to its length.
If we consider the cross section
of a cable, the stress is the same
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Type of cablesupported
structure
1- Suspension Cable
Bridges
2- Cable Stayed Bridges
3- Single curved cable
roofs
4- Double curved cable
roofs
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1-Suspension Cable Bridges:
Thefirst category of cable-
stayed bridges are suspension
bridges. In suspension
bridges, the main cable runs in
a sloping or curved manner.
The main problem with
suspension bridges is winding.
Truss decks or aerodynamic
decks are used to combat
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2- Cable StayedBridges:
In these bridges, the cables
are connected directly and
linearly to the deck. These
bridges are divided into two
types based on
arrangement: harp design
and fan design. In harp
cable-stayed bridges, the
cables are installed in
parallel, and in wind-driven
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3- Single curvedcable roofs:
The first category of cable roofs are single-curved
roofs. The main problem with these ceilings is
vibration. Which is caused by lateral forces such as
wind. Methods to deal with vibration in these
structures have been proposed.
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4-Double curved cable
roofs:
Thenext category of cable
roofs are double-curved
roofs. double-curved
structures have a positive
curvature in one direction
and a negative curvature in
the other. These structures
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FR
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5- Cable netstructure curved cable roofs:
This structure is an example of
a tensile structure, that is, a
structure that is stabilized by
tension instead of
compression.
In these structures, to increase
the height and load capacity,
horizontal cables are combined
with vertical cables. Cable
networks can be very simple
structures.
