The construction of integral bridges is one the most effective methods to reduce bridges’ and in-service costs. However, there are associated geotechnical problems with their abutments backfill due integrated abutments. main goal this study evaluate quantify benefits geogrid reinforcement for reducing backfill’s problems. For purpose, using small-scale physical modeling, reinforcing an abutment...

the use of methods employed for estimating the strength and toughness of composites reduces the trial-and-error in their design. the strength of interface between reinforcement and matrix and the effective surface of pulled-out particles have great influences on toughness and strength of these composites. in this study, a model was proposed to estimate the interface strength and matrix strength...

Hollow concrete columns are often employed in bridge constructions because of their lighter weight and effective section characteristics. In addition, to reduce the issue steel reinforcement corrosion create a strong light construction, hollow also reinforced with bars made fiber-reinforced polymer. This research aimed analyze effect GFRP (glass fiber polymer) on compression strength square und...

During the long-term operation of an urban railway viaduct, it is subjected to multiple cyclic loads caused by movement a vehicle. As result, fatigue life bridge should be fully considered during design process. Furthermore, structure will subject environmental corrosion for extended period time, resulting in concrete carbonization and reinforcement corrosion, which aggravates structure’s damag...

Abstract The historic Port Weir Bridge over the Nidau‐Büren Canal in Canton of Bern, Switzerland, was inaugurated 1938. This multi‐purpose structure serves as an important road bridge, a mechanised weir, lock for canal boats, well hydroelectric power station. During inspections 2018, severe concrete damage and reinforcement corrosion were observed on this protected structure. Immediate temporar...

Enhancement of the response of reinforced concrete (RC) beams using fiber-reinforced polymer (FRP) reinforcement bars has become a popular structural technique over the past two decades due to the well-known advantages of FRP composites including their high strength-to-weight ratio and excellent corrosion resistance. Thisstudy presents n...

in this research, using the modified compression field theory (mcft), a new truss based model is proposed to predict the behavior of reinforced concrete coupling beams with diagonal reinforcement. the model is able to consider the effects of shear and axial forces and bending moment, simultaneously. the proposed model includes a nonlinear shear spring, an axial spring, two inclined truss member...

The load-bearing performance of a RC simply supported beam bridge was comprehensively detected and evaluated. appearance detection results show that there is large area damaged exposed reinforcement in the main girder diaphragm plate bridge. detecting material condition state parameters durability insufficient, risk steel corrosion large, strength concrete poor. load test bearing capacity does ...