Reinforcement detailing of Columns from ETABS output

AIM:

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

STEP 2) Column Analysis

Select the column intersection 3A & 3B from terrace to foundation

Click on run analysis it will show the max. & min. deflection at the bottom

STEP 3) Reinforcement Detail

Click on concrete frame design icon

It will show the longitudinal reinforcement of the column

Select the elevation view along the grid 3

Drop down the icon concrete frame design and click on display design info

Select shear reinforcement in display concrete frame design

STEP 4) Reinforcement Design

Longitudinal reinforcement & shear reinforcement of column at Grid-3A & 3B from ETABS (450X650)

Larger column dimension

1/6 of clear span of column

450 mm

Confinement spacing not more than-

¼ of smaller column dimension

6 times of dia of column main bar

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