Details quantity of work is followed approved working drawings. 40 I girders, which are with length 38.3m, are required for IPR25 Overpass.There are total 8 spans, and each is with 5 Super T girders which are high 1.75m and top width of 2.37m. The maximum weight of the girder is about 69.75(27.9m3*2.5T/m3=69.75).
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