A Computational Analysis and An Experimental Study on the effects of Concrete Shrinkage and Creep in Bridge Widening

교량 확폭시 콘크리트의 건조수축 및 크리이프의 영향에 관한 실험적 연구 및 해석

The widening of bridges under traffic condition brings to many problems. One of these is the internal stresses caused by different creep and shrinkage behavior of the existing bridge and that of the widened Bridge. This study was conducted to examine the effects of different creep and shrinkage behaviors between concretes. The results are as follows; Comparing the computational analysis results with the experimental study, it is shown that finite element analysis used in this study was well accorded with experimental results. And considering the shrinkage effects in widened bridges, joining-construction using the expanding concrete between the existing and widened bridge after at least three months from the day of completion of new bridge, is recommended.