#$%^&*AU2020100841A420200702.pdf#####abstract An outer-wider splice plate includes an inner side splice plate fixed inside the U-ribbed web, and an outer side splice plate fixed outside the U-ribbed web. The rib web has a first side portion, a flat plate portion and a second side portion. It is characterized in that the inside of the first side portion and the second side portion are fixed with an inner side splice plate, and the outer surface of the first side portion and the outer surface of the second side portion are fixed with an outer side splice plate.The inner side splice plate is flush with the corresponding outer side splice plate on the upper edge, the front end face and the rear end surface respectively. The lower edge of the outer side splice plates is not lower than the lower edge of the flat plate portion of the U-ribbed web.Drawings 4 1 2 2 12 33 32 4 13 Figure2 1/3
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