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Question
Why bent up bars provided in R.C.C slab
 Question Submitted By :: Civil-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
it is actually economization of material. normally, for
fixed ended beams positive (sagging) moments are present at
the mid span and negative (hogging) moments at the supports.
so bottom steel is required at the mid span and top steel
resists negative moments at the supports. a bent-up is
provided to take the steel on the top at supports as bottom
steel is not normally required at at the supports (only
nominal steel is sufficient). hope it'd help!
 
Is This Answer Correct ?    129 Yes 4 No
Agha Zafar
 
Answer
# 2
to resist the shear created at corner 
Is This Answer Correct ?    76 Yes 19 No
B.baba
 
 
 
Answer
# 3
Bent up bars (Cranked bars) in slabs are provided to resist
the negative moment (Hogging BM) produced at supports
(beams).
 
Is This Answer Correct ?    38 Yes 1 No
Mustafa Mohammed Layeak
 
Answer
# 4
to resist negative moment 
Is This Answer Correct ?    12 Yes 1 No
Srinivasan
 
Answer
# 5
To resist negative moment . 
Is This Answer Correct ?    0 Yes 0 No
Adeel Shahzad
 
Answer
# 6
These are main reinforcement bent up at suitable angle generally 45degree ,
these are only provided with shear reinforcement.
 
Is This Answer Correct ?    0 Yes 0 No
Ritesh
 
Answer
# 7
the bars are needed to avoide the bending moment,so the
cover provided is very large in some spans,the shears
double its speed as its age carries beyound 28 days causing
cracks in many beams, columns, so on, it is purely needed
for the negative + moment on the ends to crack it like a
crack jack biscuit, you have a jig and puzz to solve the
pozzle, the 40mm and 90mm low waist jeans type hanging is
what required for the howay beam when Formula of

Beam depth = 30mm* (F*ck + root of 149 carrot inside the
is emerging ,that moment the carrot rises to 90
degree shot with a temperature of 70 degrees celcius ),the
bending moment sags as soon as the juice is over...
negative bending moment happens.

Now, yield strength of steel rod... when its hot then it is
highly hot ..strength reches beyond
aaaaaaaaaaaahhhhhhhhh uuuuuuuuuuumuuuuuuuuuuuhaaaaaaaaa

so team members avoid learning frm net use your own brains
n live happily...

Warning team from Azabudaas da elmita borosta
 
Is This Answer Correct ?    5 Yes 10 No
Hakamuda El Jabaanu
 
Answer
# 8
to increase the punching shear strength
of flat slabs
 
Is This Answer Correct ?    0 Yes 6 No
Nandlal Kumar Pandit
 
Answer
# 9
To resist shear Moment 
Is This Answer Correct ?    13 Yes 20 No
Afsar Ansari
 
Answer
# 10
beacause cement can bear compression bt not tension so therefore to withstand tension reinforcement is provided..!! 
Is This Answer Correct ?    16 Yes 29 No
Sakshi Arora
 

 
 
 
Other Civil Engineering Interview Questions
 
  Question Asked @ Answers
 
1) what is the use of pin and plate vibrators during slab casting? 2) how much cement bags are required for 1sqm 4inch brick wall? 3) Is it viable to provide overlap at column , beam & slab junction. if no why? 4) if bar dia is changing in column reinforcement , which dia bars overlap is considered? 5) what is isolated and ecentric footing?   4
what is difference between 33, 43 and 53 grade cement..? which is more suitable for construction and why,..??   1
a g+2 building having mezenine floor ,but stair is approching only 1st and 2nd floor, in this case stair is calculate in plinth area for mezenin floor or not? NBCC 1
How to calculate crank length? How to calculate hook length?   5
Can you tell the dia of bars and spacing for a 16'x16' room can you tell the dia of bars and spacing to be used for a slab for a 16'x16' room or any other design you explain   1
Why bent up bars provided in R.C.C slab Omax 12
what is porosity??   3
why you want more salary here then previous company??? TATA 3
what is the defination of an ideal fluid? NTPC 7
What are the tests on concrete?   1
What is the difference between BC and SDBC   1
what is meaning of GSB? properties, ingradiant of GSB? B-L-Kashyap 3
 
For more Civil Engineering Interview Questions Click Here 
 
 
 
 
 


   
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