Bridge plate prestress tensioning device

The utility model relates to the technical field of bridge plate prestress tensioning, in particular to a bridge plate prestress tensioning device which comprises steel bars arranged in a bridge, a fixing plate detachably arranged on the bridge, a tensioning mechanism arranged on the fixing plate and a force application plate fixed to the tensioning mechanism. The steel bar penetrates through the fixing plate and the force application plate and can slide on the fixing plate, and one end of the steel bar is detachably connected to the force application plate. When a constructor applies prestress, the tensioning mechanism is opened, the steel bars are stretched, and operation is easy. After the construction personnel completes the construction, the steel bars are detached from the force application plate, the fixing plate is detached from the bridge plate, the construction personnel do not need to detach the force application plate, the tensioning mechanism and the fixing plate, the operation of the constructio