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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 ?    131 Yes 6 No
Agha Zafar
 
Answer
# 2
to resist the shear created at corner 
Is This Answer Correct ?    76 Yes 20 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 30 No
Sakshi Arora
 

 
 
 
Other Civil Engineering Interview Questions
 
  Question Asked @ Answers
 
what is the relation between seventh day strength & twenty eighth day strength of cement concrete KPSC-Karnataka-Public-Service-Corporation 3
What is mean by Engineers ?   3
Kindly furnish the relation between 7 days strength & 28 days compressive strength of Cement Concrete cubes. Can you clarify whether the relation gets altered due to WATER- CEMENT ratio?   1
Please tell me how to calculate the stiruup length for rectangular and circular coloumns   2
How many no of bars in a bundle of steel and kgs/bundle. 8 mm, 10mm, 12mm, 16mm, 20mm with both MS and TMT separate. Abc 7
What is the density of cement?   9
pl.may i place dry mix in casting of drain bed partialy filled with water?if no pl explain.   3
How calculate the water for 1m3 concrete   5
how to find fineness modulus of sand?   3
what is a moment connection and shear connection ? where it provided ? why it provided ?   1
What is the mix proportion of m30 grade?   4
How much qty. of cement used for laying 1 Sq.Meter of tiles(600mmx600mm)   1
 
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