Reinforcement Detailing of Beams from ETABS output

Detailed design of concrete buildings -1

AIM

To provide details of longitudinal and shear reinforcement for the two continuous beams using ETabs

PROCEDURE

STEP 1

• After downloading the model given in the question, click the concrete frame design tool in the ribbon tab
• Choose select design combinations
• Select the appropriate combination from the dialogue box
• Click OK

STEP 2

• Once the analysis is done, click the concrete frame icon
• After clicking the icon, it starts checking the concrete design

STEP 3

• After the checking is done go to the plan view
• On the plan view, we have a column and beam detailing
• For this, Grid 3 and Grid A need to provide reinforcement details

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 Bootom

• Maximum Ast at support = 1056
• Maximum Ast at middle = 1501
  • 3 dia of 25mm = 1470
  • 1 dia of 16mm = 200.96

Therefore, to satisfy the support we need to provide 3 dia of 25mm bar and additionally in the middle need to provide 1 dia of 16mm

STEP 5

GRID A

AT TOP

• Maximum Ast at support = 2045
• Maximum Ast at middle = 477
  • 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 Bootom

• Maximum Ast at support = 1927
• Maximum Ast at middle = 789
  • 3 dia of 25mm = 1606
  • 1 dia of 16mm = 200.96

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 16mm

STEP 6

• Right-Click the Grid A beam
• Click details and switch it into shear details

STEP 7

• As per clause 6.3.3 the design force of equivalent Ve = 242075 kN
• The sheer force under the linear analysis as per the load combination of UDCons66 = 194.825kN

RESULT

The reinforcement details of beam is created using ETabs output