Reinforcement Detailing of Beams from ETABS output

Aim:

To provide details of longitudinal and shear reinforcement for the given two continuous beams and to calculate the value of maximum shear force in any one of the spans in the continuous beams.

PROCEDURE:

- We must go to Challenge 7 and download the challenge.

- Open Etabs after downloading the challenge.

- Now check the load combinations.

- Next select the start design option.

- After completing it, select the display design Info option.

- After selecting the display design option, a new tab will appear, then select the longitudinal reinforcing in the design output and click on the OK button.

- Now the longitudinal reinforcement details will appear.

- Draw the Reinforcement diagram of 3 span continous beam along Grid-A.

- Maximum Ast for the bottom support is 1766mm^2 and bottom middle is 702mm^2.

- Maximum Ast for the top support is 1889mm^2 and top middle is 453mm^2.

- Now draw the Reinforcement diagram of 7 span continous beam along Grid-3.

- Maximum Ast for the bottom support is 1061mm^2 and bottom middle is 1493mm^2

- Maximum Ast for the top support is 1915mm^2and top middle is 479mm^2

- After providing the beam reinforcement details, select the beam and right click on the beam.

- A new tab appears.

- Next click on the details option in Concrete beam design tab, as shown below.

- As per the clause 6.3.3 the design force is 232 kN.

- So maximum shear = 174.11kN

RESULT:

- The beams are designed suscessfully using Etabs software.