| 摘要 |
A rain gutter in bridge expansion joints is provided to prevent rainwater from permeating into the bottom of a bridge deck and to facilitate installation and maintenance easily. A rain gutter in bridge expansion joints comprises first and second rainwater draining tanks(10,20), first and second induction pipes(11,21) connected to the first and second draining tanks at one side to make fluid communication possible, first and second rainwater receivers(30,40) which contain a fixing unit connected to the other side of the first and second induction pipes through each pipe joint(30c,40c) to make fluid communication possible and a water collecting basin collecting rainwater, a third rainwater receiver(50) extended horizontally from the top portion of the fixing unit of one of the first and second rainwater receivers and receiving rainwater which falls down to the expansion space of the expansion joint, and first, second and third drainpipes(31,41,51) connected to the first, second and third rainwater receivers respectively to make fluid communication possible and guiding the collected rainwater to a drain(9) of the bridge deck to be drained. |
