Reinforcement detailing of Columns from ETABS output

Reinforcement detailing of columns in Etabs 2018.

The ETABS file for a G+4 building is provided. Run the analysis and design the RCC Moment Resisting Frame. The following challenge deals specifically with two columns at the following grid intersections.

1. 3A
2. 3B

• Provide details of longitudinal reinforcement for the two columns, from foundation to terrace level. Sketch the column cross sectional & elevation details or draft it using autocad software.
• Show shear reinforcement & lapping details as per special confining reinforcement provision of clause 8.1 of IS 13920 - 2016.

ANS:-

storey detail

• Provide details of longitudinal reinforcement for the two columns, from foundation to terrace level. Sketch the column cross sectional & elevation details or draft it using autocad software.

1. 3A COLUMN LONGITUDNAL R/F DETAIL

3A shear Rainforcement detail

3A Rainforcement detail as per is coad 13920-2016

2) 3B COLUMN LONGITUDNAL R/F DETAIL

3B shear Rainforcement detail

3B Rainforcement detail as per is coad 13920-2016

• Show shear reinforcement & lapping details as per special confining reinforcement provision of clause 8.1 of IS 13920 - 2016.

a) lo not less than

• larger column dimension
• 1/6 of clear span of column
• 450mm

so we have taken larger the dimension- 650mm

b) confinment spacing not more than

• 1/4 of smller column dimension
• 6 times of dia of column main bar
• 100mm

so we got 100mm