Guidelines

How do you calculate shuttering props?

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How do you calculate shuttering props?

  1. Take the cross-section of beam and measure the lengths of the two sides and base of beam.
  2. Sum the three measurements.
  3. Measure the span of the beam.
  4. Multiply the span length by sum of the three measurements (beam base two vertical sides) gives the shuttering area of beam.

How do you calculate shuttering material for a slab?

Let’s get started. The length of the slab = 50 feet. The width of the slab = 30 feet. Total covered area = Length x Width = \%0 x 30 = 1500 sft.

How do you calculate formwork quantity?

For simple square and rectangular forms, simply multiply length x width to know how much formwork you need. For a circular base, multiply the square of the radius by pi (πr²).

How is slab formwork calculated?

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The formwork is measured in terms of area that is in contact with the concrete surface. For example, the formwork for concrete footing will be calculated as the surface area of four sides of foundation only. Bottom of the footing is resting on earth, there is no need of any formwork and top of footing is open.

What is ideal shuttering usage ratio?

The Thumb rule to estimate the shuttering required is 6 times the quantity of concrete or 2.4 times of the Plinth area.

How much load a prop can take?

Metal props are the most commonly used, and can be painted, galvanized, zinc plated, etc… They are classified according to their load capacity (between 500 and 3000 kg) and their working height (generally covering a span height between 2 and 6 meters).

How much material do I need for shuttering?

Concrete: 0.5A Cum for Commercial Bldg. 0.2A Cum for Residential Bldg. 5.0-5.5 kg per Sqft of Built up area for Commercial Building.

How do you calculate shuttering materials?

Covered Area = 5,000 square foot.

  1. PLYWOOD: 12 MM THICK (8′ X 4′) = Covered area x Thumb rule.
  2. WOODEN BATTENS : (3” X 3”) = Covered area x Thumb rule.
  3. BEAM BOTTOM PLATES: (1.5” THICK) = Covered area x Thumb rule.
  4. WOODEN BALLIES: For Slab = Covered area x thumb rule.
  5. MS CLAMPS: = Covered area x thumb rule.
  6. SHUTTERING OIL:
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How do you calculate shuttering load?

For concretes with normal reinforcement ratios, the dead load is usually estimated at 22 to 25 kN/m3. Thus, an 16 cm normal weight slab would exert a dead load of 25 kN/m3 x 0.16 m = 4 kN/m2 on a horizontal formwork.

Is formwork and shuttering the same?

Formwork is a temporary structure which is used as a mould to pour the concrete. Formwork may be the horizontal or vertical arrangement, made to keep concrete in position until it gains desired strength and shape. Shuttering is a part of formwork. Formwork for columns, retaining walls, footings are known as shuttering.

How do you calculate shuttering material?

How many props can be used under shuttering?

No. of props to be used under shuttering depends on the plan of building. Like we have thumb rule that prop near column face will be at distance of 9inch. And then regular props supporting slab or beam will be at a distance of 300–600mm (approx). No. Of beams and slab can decide the nos.

What is the distance between slab props and column props?

Like we have thumb rule that prop near column face will be at distance of 9inch. And then regular props supporting slab or beam will be at a distance of 300–600mm (approx). No. Of beams and slab can decide the nos. Of props to be use. I hope it helps. Spacing for slab props is 1.2 m /or 4 feet in both directions.

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How to calculate the NOS of props of beam and slab?

No. Of beams and slab can decide the nos. Of props to be use. I hope it helps. Spacing for slab props is 1.2 m /or 4 feet in both directions. if you have the slab dimentions of 1000sft slab you can calculate exact nos required or else its appox 1000/16 * 4 ie,250 Nos

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