The invention relates to an urban railway traffic continuous basin type beam. A beam body of the continuous basin type beam is a passage which has the basin-shaped cross section and is formed by connecting a support bottom plate, upper web plates and wing edge plates, the upper web plates are arranged at both sides of the support bottom plate, the wing edge plates are arranged at the tops of the upper web plates, at least two pairs of rail carrying tables are arranged on the support bottom plate, a power supply device, power supply cable support bodies and communication
signal cable grooves are fixedly connected in the length direction of the beam body, the span of the beam body is 40m to 80m, the support bottom plate of the beam body at the side fulcrum region section and the middle spanflat and straight section is in a single layer, the rest support bottom plate of the beam body is in a closed opening box shape, in addition, the lower surface of the single-layer support bottom plate of the side fulcrum region section and the middle span flat and straight section is in smooth transition connection with the bottom surface of the box shape. The beam is arranged at the crossed
transition line region section or a place required to span a large node, the urban railway traffic continuous basin type beam belongs to a bridge structural form integrating the thin-wall opening U-shapedbeam and the closed opening box-
shaped beam into a whole, the problems that the ordinary railway traffic U-
shaped beam cannot span large node and cannot be applied to the crossed wire transition region section are solved, and the application range of the U-
shaped beam is enlarged.