Reinforcement detailing of Columns from ETABS output

In the given ETABS project we have to analyse and redesign the RCC moment resisting frame in two columns at the following grid intersection 3A & 3B from foundation to terrace level by using etabs with reference of IS 13920-2016

INTRODUCTION:

In the modal we provide the details of longitudinal reinforcement of two columns and shown shear reinforcement, lapping details as per special confining zone of clause 8.1 of IS 1920-21016

PROCEDURE:

STEP 1) Open the Given Model

• Model open in etabs software
• Check the model

Now select the 3A & 3B frame

Click Concrete frame desing for above two column

Then open elevation for 3A & 3B

For shear reinforcement

Story assignment tab to refer Elevation of column:

Special confining reinforcement from IS-13920-2016(Clause 8.1)

Lo not less than-

1. Larger column dimension
2. 1/6 of clear span of column
3. 450 mm

Confinement spacing not more than-

1. ¼ of smaller column dimension
2. 6 times of dia of column main bar
3. 100mm

The amount of confinement rebar- .

Ash=169mm2

• Typical column reinforcement section and elevation for grid 3A & 3B
• Provide some additional confining reinforcement 8mm @100mm C/C
• Used 8mm dia stirrups at 200mm spacing in center
• Used 2 closed stirrups (2legged) and 1 open link (stirrups)

RESULT:

Successfully done the designing and detailing of provided the details of column reinforcement at grid 3A & 3B from foundation to terrace level as per IS 13920:2016 clause 8.1 and sketch the cross section/ elevation in AutoCAD software.