2397963
Description
Mind Map by Conrad Chan, updated more than 1 year ago
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Created by Conrad Chan
over 9 years ago
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Bridges
- Types
- Truss
- Pratt
- includes vertical members and diagonals that slope
down towards the center. The interior diagonals are
under tension under balanced loading and vertical
elements under compression. It can be subdivided,
creating Y- and K-shaped patterns.
- Eg : Gatton Railway Bridge
- Eg : Gatton Railway Bridge
- includes vertical members and diagonals that slope
down towards the center. The interior diagonals are
under tension under balanced loading and vertical
elements under compression. It can be subdivided,
creating Y- and K-shaped patterns.
- Warren
- Consists of longitudinal members
joined only by angled cross
members, forming alternately
inverted equilateral triangle
shaped spaces along its length,
ensuring that no individual strut,
beam, or tie is subject to bending
or torsional straining forces, but
only to tension or compression.
- Eg : Sydney Harbour bridge
- Eg : Sydney Harbour bridge
- Consists of longitudinal members
joined only by angled cross
members, forming alternately
inverted equilateral triangle
shaped spaces along its length,
ensuring that no individual strut,
beam, or tie is subject to bending
or torsional straining forces, but
only to tension or compression.
- K
- A truss in the form of a K due to the
orientation of the vertical member and the
two oblique members in each panel.
- Eg : Sudbrucke rail bridge over River Rhine, Mainz, Germany
- Eg : Sudbrucke rail bridge over River Rhine, Mainz, Germany
- A truss in the form of a K due to the
orientation of the vertical member and the
two oblique members in each panel.
- Pratt
- Suspension
- Suspends roadway from huge main
cables that extend from one end to the
other of the bridge . They rest on high
towers which are anchored , allowing
the main cables to drape over long
distances.Most of the weight or load is
transferred to the anchorage
sustems.Inside the anchorages, cables
are spreadover a large area to evenly
distribute the l,oad and prevent the
cables from breaking free.
- Eg : Akashi Kaykiyo bridge in Japan
- Eg : Akashi Kaykiyo bridge in Japan
- Suspends roadway from huge main
cables that extend from one end to the
other of the bridge . They rest on high
towers which are anchored , allowing
the main cables to drape over long
distances.Most of the weight or load is
transferred to the anchorage
sustems.Inside the anchorages, cables
are spreadover a large area to evenly
distribute the l,oad and prevent the
cables from breaking free.
- Girder
- a solid structure comprised
of a horizontal beam, being
supported at each end by
piers/land.
- Eg : Dunn Memorial Bridge
- Eg : Dunn Memorial Bridge
- a solid structure comprised
of a horizontal beam, being
supported at each end by
piers/land.
- Cable
- Continuous grider with
one or two towers erected
above piers in the middle
of a span. Cables are
attached diagonally from
the piers to the girder.
- Eg : Ed Hendler Bridge
- Eg : Ed Hendler Bridge
- Continuous grider with
one or two towers erected
above piers in the middle
of a span. Cables are
attached diagonally from
the piers to the girder.
- Cantilever
- Based on structures that project
horizontally into pace, supported
only at one end like a spring board.
Forces are balanced when two
cantilevers project out from a central
pier.
- Eg: Quebec Bridge
- Eg: Quebec Bridge
- Based on structures that project
horizontally into pace, supported
only at one end like a spring board.
Forces are balanced when two
cantilevers project out from a central
pier.
- Moveable
- A bridge that moves to
allow passage for boats or
barges.
- Eg : Madison Street Bridge over the Chicago River
- Eg : Madison Street Bridge over the Chicago River
- A bridge that moves to
allow passage for boats or
barges.
- Arch
- The load is carried outward along
the curve of the arch to the
supports (abutments).
- Eg : Double arch stone bridge in Japan
- Eg : Double arch stone bridge in Japan
- The load is carried outward along
the curve of the arch to the
supports (abutments).
- Truss
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