Continuity diaphragm for skewed continuous span precast prestressed concrete girder bridges : technical summary report.
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2004-03-01
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By Saber, Aziz
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Edition:Technical summary report.
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Abstract:Most highway bridges are built as cast-in-place
reinforced concrete slabs and prestressed concrete
girders. The shear connectors on the top of the girders
assure composite action between the slabs and
girders. The design guidelines for bridges in
AASHTO Section 8.12 indicate that diaphragms
should be installed for T-girder spans and may be
omitted where structural analysis shows adequate
strength. Furthermore, the effects of diaphragms are
not accounted for in proportioning the girders.
Therefore, the use of diaphragms should be investigated.
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