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.

AIM :

Reinforcement detailing of columns from Etabs Output.

• 3A
• 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.

PROCEDURE :

• Open Etabs sofware,
• Open the Provided G+4 file

• Select the column 3A & 3B Right and show selected objects only.

• Run analysis,

• select concrete frame design of the model,

• Note down longitudinal reinforcing

• Also note down the shear reinforcing, from Display design info,
• Grid 3A
• Maximum longitudinal reinforcement required is @ bottom = 7027 mm^2
• Therefore, we can provide 10 bars of 32mm dia = `pi` * d^2 / 4 = 804 * 10 = `8040mm^2
• AUTOCAD DRAWING,

• Grid 3B
• Maximum longitudinal reinforcement required is @ bottom = 5046 mm^2
• Therefore, we can provide 6 bars of 32mm dia and 2 bars of 20mm dia = `pi`* d^2 / 4 = 804 * 6 + 314 *2
• = 5452mm^2
• AUTOCAD DRAWING,

RESULT :

Thus the retailing of 2 RCC columns where done using Auto cad and special confining reinforcement is verified with respect to IS13920 Clause 8.1