Construction Cost Estimating


Full Reinforcement details for 3 Storey (G+2) Building

A person might be confused about which type of reinforcement should be used for residential and commercial structures including footings, columns, beams, and a slab. Based on the architectural drawing & design of a three-story building, sizes of reinforcement are determined for various RCC members.

In a residential building structure where the height is less than 10 meters and the column spacing is between 4 and 5 meters, not more than 5 meters, it shouldn't be complicated, but it seems that the building has to be a little bit smaller.

3 Storey Building full Reinforcement

In general, imagine a three-story residential building with standard 9-inch thick walls and use full reinforcement details, which requires 16mm for footing, 16mm for the column, 16mm for beam, and 10mm and 8mm for iron rods for casting RCC roof slabs.

Column Reinforcement Details

You assume a three-story residential building with walls 9 inches thick, assuming a general thumb rule to calculate reinforcement details. Using Fe 500 with E20 concrete and stirrups of T10 with a clear cover of 35mm, the column should have a minimum size of 10-inches by 16-inches.

Footing Reinforcement Details

General Thumb guide is for reinforcing the footing of a three-story building. The wall thickness should be 9 inches and the footing depth 6 to 7 feet in a trapezoidal shape with a reinforcement bar of Fe 500 in size T16 using m20 concrete with a 50mm clear cover using a three-story residential building.

Plinth Beam Reinforcement Details

The following steps will show how to build a plinth beam for a three-story residential building using standard walls of 9 inches thick.

A minimum of 9" by 9" of the plinth beam is required, using 2nos of T16 Reinforcement on top and 2nos of T16 Reinforcement on the bottom of Fe 500 reinforced concrete with T10 stirrups and a 35mm clear cover.

RCC Roof Slab Reinforcement Details

Details of RCC roof slab reinforcement for a three-story residential building based on the general thumb rule, the walls will be 9 inches thick for 3 story houses. Using main bars of steel of size T10 and distribution bars of steel of size T8 of 8 inches on the bottom of the RCC slab, its thickness must be a minimum of 5 inches.

The top of the Fe500 used with M20 grade of concrete can reinforce with main steel bars of size T10 and distribution bars of strength T8.

Floor Beam Reinforcement Details

A general thumb rule is for supporting the floor beam of a three-story building. For a three-story building with standard walls of 9 inches thick, a minimum of 9 inches by 9 inches should be used as the room beam size. Fe 500 reinforced with 2 number of T16 to the top and 2 number of T16 to the bottom with stirrups of T10 in M20 grade of concrete.

Wrapping it Up

Structures engineer specialists must possess sound knowledge of structural engineering as well as experience, intuition, judgment, and a complete understanding of codes and laws, in addition to good concept thinking and imaginative skills.

It is important to remember that any structure built must be able to meet the intended needs effectively as well as to have long-term durability. Different sizes of reinforcement are used in different RCC structures for buildings with 3 stories or ground floors.

There will be information about footings, columns, plinth beams, floor beams, and reinforcement of RCC slabs.

To get more details, watch the following video tutorial.

Video Source: Civil Engineer Deepak Kumar

Building Reinforcement in Full Detail for 3 Storey