Roof Slab Reinforcement Calculation

2 columns 1 to 5.

Roof slab reinforcement calculation.

Lineal feet of rebar plus the amount of waste. 1 lintel and beams 1 to 2. The one way slab steel quantity calculation is done according to its supporting conditions. The amount the waste factor will add in lineal feet.

Calculate optimal rebar spacing and weight for concrete slabs. Steps to calculate the reinforcement required for slab deduct the cover for finding length of bar. Where reinforcement is called a steel rod. 3 foundation 0 5 to 0 8.

The one way slab is supported on two beams and then to the columns of the building. I have given an example for the calculation of the quantity steel rod in slab below. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Technically in the slab we give two different names of these bars main and distribution bar.

The amount of result 3 divided by 20. Outside of the u s a degree angle is typically used. The slab should be strong enough to bear the required load according to design. Calculation of steel bars in beams.

Amount of rebar needed in lineal feet. Qaisar ali http www eec edu pk page 5 of 24. For example if the slab is 10 x 10 and the clearance is 3 the size of the rebar grid will be 9 6 x 9 6. This is needed to determine both the lengths of the rebar and how many rows and columns are needed.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Of bars compute the total wt of steel required for slab reinforcement. The bars we use in the tension zone of the slab is called bent up bars. The slab should be provided steel bars to withheld tensile force so this slab is called the rcc slab.

4 roof slab 0 7 to 0 8. Lb la 16 12 1 33 2 two way slab minimum depth of two way slab is given by formula hmin perimeter 180 2 16 12 12 180 3 73 in assume h 5. Main bar distribution bar difference top and bottom clear cover is 25 mm consider development length as 40 d thickness of slab 150 mm. Before calculating the quantity of steel in one way slab it is very important to clear the basic concepts.

Department of civil engineering n w f p uet peshawar design of reinforced concrete components of a house.