Reinforcement detailing of Columns from ETABS output

Aim:

To analyse the given ETABS model and provide details of longitudinal reinforcement for the two given columns.

1. 3A
2. 3B

Also calculation of shear reinforcement as per special confining reinforcement based on clause 8.1 of IS13920-2016

Procedure:

Step 1:

• Open the given model and Check the model

• Once the model is checked,run for analysis.

• Check for load combination

• Start the design check

• You can view Longitudinal and Shear reinforcement in the Display design info in the concrete frame design drop down box

Longitudinal reinforcing values:

Shear Reinforcing values:

Final design:

Column along 3A:

• Longitudinal rebar - 32mm dia in 8 nos
  20mm dia in 2 nos
• Shear rebar - 8mm dia @ 200 c/c distance
• Cover,lo- 650mm
• Confinement spacing- 100mm
• 4 legs

Column along 3B:

• Longitudinal rebar - 32mm dia in 8 nos
• Shear rebar - 8mm dia @ 200mm spacing
• Cover,lo- 650mm
• Confinement spacing- 100mm
• 3 legs

Result:

• Provided the details of longitudinal and shear reinforcement for two columns 3A and 3B successfully
• Provided the column cross sectional and elevation details using AutoCAD software
• Special confining is verified with resoect to IS13920 clause 8.1