Reinforcement Detailing of Beams from ETABS output

Aim: To provide reinforcement details for beams using ETABS

Objectives :

• To know the design of the RC beam using ETABS analysis
• To know the basics of beam reinforcement detailing concerning primary standards
• To ensure the ductility reinforcement required by IS-13920-2016 has been satisfied in the ETABS design

Procedure

Step 1: Download the model from the question and then click frame design tool from ribbon tan and then select design combinations and click ok and run the analysis

Step 2: Once the analysis is done, click the concrete frame icon and it starts checking the concrete design

Step 3:Go to plan view and have column and beam detailing. For this Grid 3 and Grid A need to provide reinforcement detailing

Step 4:

Grid 3 :

At Top :

Maximum Ast at support =194

Maximum Ast at middle =485

2 dia of 32mm=1606

1 dia of 25mm=490

Therefore, to satisfy the support we need to provide 2 dia of 32mm bar, and additionally in the middle need to provide 1 dia of 25mm.

At bottom

Maximum Ast at support =1056

Maximum Ast at middle = 1501

2 dia of 32mm=1470

1 dia of 25mm= 200.96

Therefore, to satisfy the support we need to provide 3 dia of 32mm bar, and additionally in the middle need to provide 1 dia of 16mm.

Grid A :

At Top :

Maximum Ast at support =2045

Maximum Ast at middle =789

2 dia of 32mm=1606

1 dia of 25mm=490

Therefore, to satisfy the support we need to provide 2 dia of 32mm bar, and additionally in the middle need to provide 1 dia of 25mm.

At bottom

Maximum Ast at support =1927

Maximum Ast at middle = 789

2 dia of 32mm=1470

1 dia of 25mm= 200.96

Therefore, to satisfy the support we need to provide 3 dia of 32mm bar, and additionally in the middle need to provide 1 dia of 16mm.

Step 6: Right-click the grid A beam and click details and check the shear details

Step 7: As per clause 6.3.3 the design force of equivalent Ve=414.57

The shear force under the linear analysis as per the load combination of UDCons66=287.0529