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Is specification for design of RCC slab?

September 3, 2022

Is specification for design of RCC slab?

The effective depth d of two way slabs can also be assumed using cl. 24.1,IS 456 provided short span is <3.5m and loading class is <3.5KN/m….b) Depth of slab:

Type of support Fe-250 Fe-415
Simply supported L/35 L/28
Continuous support L/40 L/32

How do you design a slab?

One way slab d = (L/22) to (L/28). Two way simply supported slab d = (L/20) to (L/30) Two way restrained slab d = (L/30) to (L/32)…Depth or Thickness of Slab:

Type of support Fe-250 Fe-415
Simply supported L/35 L/28
Continuous support L/40 L/32

How is slab design calculated?

Effective depth d= Span /((L/d)Basic x modification factor) For obtaining modification factor, the percentage of steel for slab can be assumed from 0.2 to 0.5%. The effective depth d of two way slabs can also be assumed using cl. 24.1,IS 456 provided short span is <3.5m and loading class is <3.5KN/m.

How do you design a slab thickness?

Standards like ACI 318 have specified the minimum thickness of the slab based on the span of the slab.

  1. Simply Supported Slab = Span / 20.
  2. One End Continuous Slab = Span / 24.
  3. Both End Continuous Slab = Span / 28.
  4. Cantiliver = Span / 10.

What are the types of RCC slabs?

A reinforced concrete slab is a crucial structural element and is used to provide flat surfaces(floors and ceilings) in buildings….

  • One-Way Slabs on Beams.
  • One-way joist slab (Ribbed slab)
  • Waffle Slab (Grid slab)
  • Flat Plates.
  • Flat Slabs.
  • Two-way Slabs on Beams.
  • Hollow core slab.
  • Hardy Slab.

What is minimum thickness of slab?

The minimum thickness of the slab shall be 125 mm.

Is 456 an RCC design?

IS 456-2000 Plain and Reinforced Concrete – Code of Practice is an Indian Standard code of practice for general structural use of plain and reinforced concrete. The latest revision of this standard was done in year 2000, and reaffirmed 2021.

What is the minimum thickness of RCC slab?

The minimum thickness of the RCC slab is 4″ or 100mm, 3″ for sidewalk, 4″ for patios, 6″ for driveway, and minimum 4″ thick for parking. It will be restricted to 4 times the nominal size of aggregate.

What are four different types of slabs?

What are the 16 different types of slabs in construction?

  • One-Way Flat Slab.
  • Two-Way Flat Slab.
  • Kitchen Slab.
  • Sun Shade Slab.
  • Lintel.
  • Sunken Slab.
  • Cable Suspension Slab.
  • Pre-Tension Slab.

What is the minimum grade for RCC?

M20
Minimum grade of concrete for R.C.C. work as per IS 456 is M20 which is 1:1.5:3.

How to make a reinforced concrete beam?

Firstly,compute ultimate shear force at distance d which is the depth the cross section.

  • Secondly,estimate design concrete shear strength,
  • No shear reinforcement is needed if Vu< 0.5 Vc .
  • If 0.5 Vc>Vu< Vc,then provide minimum shear reinforcement only.
  • Provide shear reinforcement when Vu> Vc.

    • How to reinforce a concrete slab with steel mesh?

    The Housing Industry Association (HIA)

  • Australian Certification Authority For Reinforcing Steels Ltd (ACRS)
  • The Australian Steel Association (ASA)
  • The Steel Reinforcement Institute of Australia (SRIA)
  • The Australian Green Infrastructure Council (AGIC)

    • How do we estimate RCC slab concrete?

    – Traffic condition – Type of soil – Area population – Width of road etc

    What are the checks for concrete slab design?

    Effective depth d= Span/( (L/d)Basic x modification factor)

  • For obtaining modification factor,the percentage of steel for slab can be assumed from 0.2 to 0.5%.
  • The effective depth d of two way slabs can also be assumed using cl.24.1,IS 456 provided short span is 3.5m and loading cl

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