reinforcement estimates for various structures

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Reinforcement Estimates Typical average weight of reinforcement (kg/m3) in concrete building elements. The below figures are for guideline only and may vary for different projects. Concrete building element Weight of reinforcement in kg/m Bases Beams Capping beams Columns Ground beams Footings Pile Caps Plate slabs Rafts Retaining walls Ribbed floor slabs Slabs – one way Slabs – two way Stairs Tie beams Transfer slabs Walls – normal Walls – wind 90-130 250-350 135 200-450 230-330 70-100 110-150 95-135 115 110-150 80-120 75-125 67-135 130-170 130-170 150 70-100 90-150 NOTE: For exposed elements add the following: Beams +100%; Columns +15%; Walls +50% Average values for typical concrete frames: Heavy industrial = 130 kg/m3 Commercial = 100 kg/m3 Institutional = 90 kg/m3

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Reinforcement Estimates for Various Structures

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Reinforcement EstimatesTypical average weight of reinforcement (kg/m3) in concrete building elements. The below figures are for guideline only and may vary for different projects.Concrete building elementWeight of reinforcement in kg/m3

BasesBeamsCapping beamsColumnsGround beamsFootingsPile CapsPlate slabsRaftsRetaining wallsRibbed floor slabsSlabs one waySlabs two wayStairsTie beamsTransfer slabsWalls normalWalls wind90-130250-350135200-450230-33070-100110-15095-135115110-15080-12075-12567-135130-170130-17015070-10090-150

NOTE:For exposed elements add the following:Beams +100%; Columns +15%;Walls +50%

Average values for typical concrete frames:Heavy industrial = 130 kg/m3Commercial = 100 kg/m3Institutional = 90 kg/m3