| Title |
An Experimental Study on the Stress Behavior of Coped Stringers in Steel Railway Bridge -Ⅱ : RepairㆍStrengthening Method |
| Keywords |
coped stringers;fatigue crack;repairㆍstrengthening;in plane stress;out plane stress;세로보 절취부;피로균열;보수ㆍ보강;면내응력;면외응력 |
| Abstract |
In this study, in order to research the repair-strengthening methods, when fatigue crack occurs in the coped stringers of a steel railway bridge, we manufacture the full size of crossbeam-stringer and floor system model. Also the experimental test is performed on the coped stringers applying the repair-strengthening methods using the stop hole, combination plate, connection plate, bracket, and so on. The results indicate that, the most effective method is to set up connection plate and bracket in the top flange and bottom flange of the stringers, while we can consider the method of punching stop holes in the end of the crack as a subsidiary method. It is necessary to set up the combination plate when the length of crack is quite long. |