Reinforcement Detailing of Beams from ETABS output

Aim - Detail design of beam in Etab

Procedure -

Step 1-

• First open the challenge page and download the challenge and open the file in Etab
• Then,Run the model

Step 2-

• Once the analysis is done,Go to concrete frame design and select view/review preferances

• Next check the load combinations from concrete frame design

Step 3-

• Next we have to start the beam design by selecting the start design/check option

Step 4 -

• After completion of beam design ,select the display design info option
• In that option select longitudinal reinforcing in the design output and click ok

• The longitudinal reinforcement details will appears

Step 5-

• To draw Reinforcement diagram of 3 span continuous beam along grid-A and also provide reinforcement details
• The maximum reinforcement at top = 1938mm^2
• The maximum reinforcement at bottom = 1903mm^2
• Provide 2=32mm at top and bottom side
• Also provide 1-25mm at top

• Next draw reinforcement diagram of 7 span continuous beam along grid -3,and also provide reinforcement details
• The maximum reinforcement at top = 1938mm^2
• The maximum reinforcement at bottom = 1501mm^2
• Provide 2-32mm at top and bottom side
• Also provide 1-25mm at top

Step 6-

• After providing beam reinforcement details,we select beam and right click on it,then new tab appears
• Shears details will appear

Step 7-

• As per clause 6.3.3 the design force of equivalent Ve=232.00kn
• Shear force = 174.11kn

• The failure of middle span along grid -A is due to unequal span or distance of beam and due to this it is not unifromly loaded,the distribution of load is unequal and therefore it becomes failed.
• For safe distribution of load make the span equal and provide the reinforcement in proper quantity.