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how to calculate lapping length. Where d is the diameter of the bar. Normally lap length is 50D meaning 50 times the bar diameter if both bars are of same diameter.
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Lapping zone and load path through reinforcements. Lap Length As Per IS 456 Generally development length is 41d where d is the diameter of the bar. Both anchorage and lap lengths are determined by the ultimate bond stress fbd which depends on the concrete strength and whether the anchorage or lap length is in a.
For flexural tension Ld or 30d whichever is greater is considered.
So eliminating the anchorage value the lap length 58 29d 40d. Values of the coefficient a6. Lapping zone and load path through reinforcements. Lap length in tension for plain Grade-1 MS bar including anchorage value is 58d.
