Structural Engineering notes for GATE, PSUs - part 1

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 I just picked following information for the structural Engineers, I hope this is useful:

• Minimum 4 Nos. of bars for rectangular columns and 6 Nos. for circular columns are to be used.
• Lapping is not allowed for the bars having diameter more than 36 mm.
•  For chairs minimum 12 mm diameter bars are to be used.
• For dowel minimum of 12 diameter bars should be used.
• Main bars in slab shall not be less than 8 mm (HYSD) diameter and 10 mm (Plain bars) diameters.
• Longitudinal reinforcement should not be less than 0.8% and not more than 6% of the gross C/S.
• Minimum thickness of slab is 125 mm.
•  A maximum of 1.5 m of free fall is allowed for concrete pouring.
• pH value of water used shall not be less than 6.
• In steel reinforcement 8 kg of winding wire is required per MT.

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