Abstract: A replaceable and fatigue-avoided orthotropic plate structure includes a plurality of U rib components detachably arranged. The U rib component includes a U rib. The upper end of the U rib is fixedly connected to the roof plate in a non-welded manner. A replacing method includes that when a structural abnormality is detected in a target U rib component, sequentially removing connecting pieces between a connecting plate corresponding to the target component and a diaphragm; pulling out the connecting plate and the limiting plate corresponding to the target component; sequentially removing connecting pieces between an upper end of a U rib corresponding to the target component and the roof plate; installing a U rib component for replacement at a position corresponding to the target component with the connecting pieces; and installing the connecting plate and the limiting plate at the original position with the connecting pieces.

Abstract: A replaceable and fatigue-avoided orthotropic plate structure includes a plurality of U rib components detachably arranged. The U rib component includes a U rib. The upper end of the U rib is fixedly connected to the roof plate in a non-welded manner. A replacing method includes that when a structural abnormality is detected in a target U rib component, sequentially removing connecting pieces between a connecting plate corresponding to the target component and a diaphragm; pulling out the connecting plate and the limiting plate corresponding to the target component; sequentially removing connecting pieces between an upper end of a U rib corresponding to the target component and the roof plate; installing a U rib component for replacement at a position corresponding to the target component with the connecting pieces; and installing the connecting plate and the limiting plate at the original position with the connecting pieces.