Why alternate bars are given bent-up in slab and how to
decide the length of bent up?
Answers were Sorted based on User's Feedback
Answer / v.prudhvi raju
for controlling negative bending moment in slab,we should
provide bars at top corners of the slab,by providing bent up
bars we are controlling negative bending moment and shear
also...(shear is acting in diagnolly)
Is This Answer Correct ? | 44 Yes | 5 No |
Answer / santosh singh
because it is economical and there is good anchorage.
length of bent up is L/4 OR L/5
Is This Answer Correct ? | 27 Yes | 10 No |
Answer / syed shujauddin
Due to partial fixity at support position of a beam/slab section, a negative BM occurs at the end position , and it means tensile side is now at upper portion of the section and compressive side at the bottom portion, i:e: a hogging moment forms, and as we know that concrete is more safe at comp. side than tension, so we provide bent up bars at the upper most part of it to resist that amount of negative BM.
Is This Answer Correct ? | 14 Yes | 1 No |
Answer / muskan
The bent up is at L/7 distance
But in case the of a continuous slab, the bent up is at L/5.
Is This Answer Correct ? | 0 Yes | 0 No |
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