Search
×

Sign up

Use your Facebook account for quick registration

OR

Create a Shvoong account from scratch

Already a Member? Sign In!
×

Sign In

Sign in using your Facebook account

OR

Not a Member? Sign up!
×

Sign up

Use your Facebook account for quick registration

OR

Sign In

Sign in using your Facebook account

Shvoong Home>Science>Architecture>EFFECTIVENESS OF DIFFERENT COMPOSITE MATERIALS FOR REPAIR OF STEEL BRIDGE GIRDERS Summary

EFFECTIVENESS OF DIFFERENT COMPOSITE MATERIALS FOR REPAIR OF STEEL BRIDGE GIRDERS

Article Summary   by:toffi_75     Original Authors: Amr Shaat; Amir Fam
ª
 
Steel-concrete
composite bridge girders damaged due to corrosion or fatigue cracks can be
repaired by adhesively bonded carbon fiber reinforced polymer (CFRP) sheets.
This paper describes the results of the first phase of an experimental study on
beams of 1960 mm span length. Each beam is composed of W150 x 22 steel section
acting compositely with a 75 mm thick by 465 mm width concrete slab to simulate
an actual bridge girder condition. A severe damage was introduced by
saw-notching the steel tension flange through the entire thickness at mid-span.
Two different types of CFRP sheets were then applied to the tension flange to
restore the stiffness and strength capacities of the undamaged control beam.
The beams were tested to failure in four-point bending. The findings of this
study indicate that proper selection of composite material properties and
immediate application of FRP sheets after steel surface preparation are crucial
for a successful repair.
Published: August 29, 2007   
Please Rate this Summary : 1 2 3 4 5
Translate Send Link Print
X

.