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)

Answer / santosh singh

because it is economical and there is good anchorage.

length of bent up is L/4 OR L/5

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.

Answer / govind tawer

Length of Bent up Bar is L/7.

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.

what is injection grouting and what is rewiring.

1 Answers  

How to calculate(Thumb rule) the consumption of steel per cubic meter for different concrete members. 

0 Answers   Ranka Group,

how many types of survey and what are levelling instrument?

0 Answers  

Q1) I am having an interview in a construction company for a large sewage project . Since I have not done any such project , there are some queries from my end. Pls. help me to solve them. I will be thankful to you :- a) Normally for large project 400-600 houses & around 1600 peoples , how much dia pipe is used and which type of pipe is used? b) For trenching , I have heard that IS 1200 implies, what are the rules of calculating earthwork in case of depth of 2m or above ? c) To prevent soil to fall when depth of trench is more , what steps are taken and how there qty. is calculated . Like I have heard about timbering . what is this ? d) What are the rules for disposing off the excavated soil ? e) How the pipes that are used are being jointed? f) In case of cleaning on choks , is there any intermediate things provided? g) For foul gases any outlets are provided thru out length of pipeline? h) What is the flow digram like from houses thru small pipe to main pipeline than where main pipeline disposes wastage ? i) Any other thing that has to be kept in mind while calculating earth work for excavation like steps are made and other things? How earthwork is calculated in case of steps ? Pls. explain with a sketch. Regards,

1 Answers  

koi bta sakta ha ka steel ko calculate krna ka full mathod pls

4 Answers  

What expenses counted in contingencies and how much it is in related to built-up area of the building.

0 Answers  

is ther any formule for w/c ratio

0 Answers   L&T,

How much Strength of the cube can attain in 7days comparative 28 days strength?(as per IS code) ( specify the ref.clause also)

8 Answers   CCCL, L&T,

For the symmetrical continuous beam shown in figure, Prestressed with a force P = 1500 KN along parabolic curve as shown, compute the extreme fiber stresses over the central support for the uniformly distributed load of 24 kn/m. Use load balancing method.

0 Answers  

neutral axis more than the critical neutral axis then rainforcement in rcc beam belong to over or under rainforcement

2 Answers  

how do you stabilize a waterlogged area in road construction

0 Answers  

what"s the formula find the cement consumption for brick work 23 thick wall 1 m3?

7 Answers   L&T, Vipul Chemicals,