how to calculate the steel for rcc slab?
plz tell me the formula for calculating the steel?
Answer Posted / hemant gor
Two Methods, First from Calculation, 2nd using SP16
1st Method Compute K= Mu/(fcu x b x d^2)
for Fy = 415 if K<= 0.138 Singly Reinforced
Calculate Z/d = 0.5 + sqrt { 0.25 - K/0.865}
Area of Steel = Mu / { 0.87 x fy x Z }
Z is Lever Arm Distance Between CG of Tension and Compression Force
2nd Method
Calculate Mu /{b x d^2}
Check Table 2 to 5 of SP16 based on Concrete Grade
It gives Percentage of Steel Pt for given Grade of Concrete,steel and Mu/{bxd^2}
| Is This Answer Correct ? | 111 Yes | 44 No |
Post New Answer View All Answers
Explain the advantages and disadvantages of using plastic and timber fenders?
Which are the Steel tests ?
how to calculate the material from ratio of work PCC, RRM,POINTING, RCC
use ofr concrete as per grade ?
Coverage of 25mm.thick ratio of 1:4 cement mortar?
how to calculate cut length of re-bar in a circle . because we not place same length of re-bar in whole circle maximum in center and minimum at corner so how to calculate middle bars???
in the earthquqke the profile of water on dam is parabolic or not
for G+2 residential building how much quantity of required in foundations,sub & superstructures per sq ft area
What is bylayer?
What is the requirement for over all CG of DG from the foundation surface to absorb the vibration of heavy set.
I want to know about rolling margin of steel :- For eg. If 2nos. bundle of 8mm dia steel with17 rods each of length 12m comes to store. During testing of 1m rod of each bundle it was found that 1rod has weight .405kg/m while other has .385kg/m. Now what will happen in case of steel payment and measurement payment ? Regards,
how pumping of concrete effects the quantity of material used in it?
how to compute slab reinforcements on step by step procedures??
How to calculate cement, water, fly ash amount for 1 cum if the w/c ratio is 0.4 and fly ash to cement ratio is 1:9
Describe a time when you anticipated potential problems and developed Preventive measures