If b is actual width of a flange, Dt is the thickness of the flange, b is the breath of the web, lo is the distance between the points of zero moments in a beam, the effective width of the flange, is

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• B. <img src="/_files/images/civil-engineering/structural-design-specifications/02-22-47-2.png">
• C. <img src="/_files/images/civil-engineering/structural-design-specifications/02-22-47-3.png">
• D. <img src="/_files/images/civil-engineering/structural-design-specifications/02-22-47-4.png">