FLEXURAL BEHAVIOR OF GFRP-RC CONTINUOUS BEAMS SUBJECTED TO UNBALANCED LOADING
Reinforced concrete(RC)structures such as parking garages and bridges are subjected to harsh enviromental conditions which result in corrsoion of the reinforcing steel bars.In the last two decades,fiber reinforced polymer(FRP)reinforcement has been used instead of steel bars to eleminate the deterioration of RC structures due to corrosion.Furthermore,continuous beams,which represent a main and common structural member in bridges and parking garages,usually encounter different load intensities on adjacent spans.In this paper,an experimental investigation was carried out to study the behavior of glass(G)FRP-RC two-equal span continuous beams tested under different loading patterns.The test parameters include loading arrangment on adjacent spans,longitudinal reinforcement configuration,and design criteria.One reference beam was tested under symetrical loads,while three beams were subjected to unequal loading on the adjacent spans.Crack width,mid-span deflection as well as moment redistribution were evaluated.The test results showed that the higher load span of all unsymmetrically loaded beams experienced less crack width and deflection compared to the less load span.The unsumetrical load arrangement adversely affected the moment redistribution of test beams.Also,the beam that was designed to satisfy serviceability criteria showed small percentage of moment redistribution due to the limited rotation capability of the adjacent critical sections.
Continuous beams Unsymetrical loading Moment redistribution Serviceability
Mohammed El-Gendy Hasanur Rahman Karam Mahmoud Ehab El-Salakawy
Dept.of Civil Engineering,University of Manitoba,Winnipeg,MB,Canada
国际会议
新加坡
英文
1-5
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）