Beam falling prevention device and construction method thereof

The invention discloses a beam falling prevention device and a construction method thereof, relates to the technical field of bridge construction, and can solve the problem that an existing beam body falling prevention device is poor in safety when applied to a bridge structure. The beam falling prevention device comprises a pull rod, a first anti-loosening anchorage device and a second anti-loosening anchorage device, the first anti-loosening anchorage device and the second anti-loosening anchorage device are used for fixing the pull rod and the beam body, the two ends of the pull rod are the fixed end and the movable end respectively, the first anti-loosening anchorage device is arranged at the fixed end, the second anti-loosening anchorage device is arranged at the movable end, and the pull rod sequentially penetrates through the first anti-loosening anchorage device, the beam body and the second anti-loosening anchorage device. A buffer spring used for adjusting the connecting tightness of the pull rod an