Multifunctional modular supporting device for bridge construction

The invention belongs to the technical field of bridge construction supporting, and particularly relates to a multifunctional modular supporting device for bridge construction, which comprises a bracket and a pin rod, and further comprises a steel bracket mounted above the bracket, the first protection assembly comprises a first fixing frame, a second fixing frame, a second protection assembly and a third protection assembly, wherein the first fixing frame is installed on the pier column; the first round rod is mounted below the first fixing frame; the first round shell is mounted below the first round rod; the second round rod is mounted in the first round shell in a sliding manner; the first steel rope is mounted on the side wall of the steel bracket; the second steel rope is connected to one end of the first steel rope, and the other end of the second steel rope is fixedly connected with the second round rod; by arranging the first steel rope and the second steel rope, when the channel steel is fractured o