Reinforcement detailing of Columns from ETABS output

Reinforcement detailing of columns in Etabs 2018.

The ETABS file for a G+4 building is provided. Run the analysis and design the RCC Moment Resisting Frame. The following challenge deals specifically with two columns at the following grid intersections.

1. 3A
2. 3B

• Provide details of longitudinal reinforcement for the two columns, from foundation to terrace level. Sketch the column cross sectional & elevation details or draft it using autocad software.
• Show shear reinforcement & lapping details as per special confining reinforcement provision of clause 8.1 of IS 13920 - 2016.

ANS-

AIM:-

• To provide details of longitudinal reinforcement for column 3A and 3B from foundation to terrace level.
• To display shear reinforcement and lapping details as per IS 13920.

PROCEDURE:-

• open provided G+4 Etabs file in software.
• run the analysis.
• now go for concrete design check.

• now choose design output as longitudinal reinforcement.
• click ok.

• after that go to elevation select 3rd view.
• now go to set view option uncheck beam option.

• after this result will look like this.

• now choose design output as shear reinforcement.

• now click ok result will look like this.

calculate the reinforcement details for grid 3A.

• the heighest of the longitudinal reinforcement of the column from the base to terrace is = 7027 mm^2
• total no of longitudinal bars = total asc of column / asc of the any dia bar per meter
• so if we select 10 nos of 32 dia , 10x804=8040 mm^2
• provide 10bars of 32 mm dia for the column = 8040mm^2 > 7027 mm^2.
• HENCE OK.
• the heighest of the longitudinal reinforcement of the column from the first floor to terrace is = 4800 mm^2
• total no of longitudinal bars = total asc of column / asc of the any dia bar per meter
• so if we select 6 nos of 32 dia , 6x804=4824 mm^2
• provide 6 bars of 32 mm dia for the column = 4824mm^2 > 4800 mm^2.
• HENCE OK.

calculate the reinforcement details for grid 3B.

• the heighest of the longitudinal reinforcement of the column from the base to terrace is = 5046 mm^2
• total no of longitudinal bars = total asc of column / asc of the any dia bar per meter
• so if we select 8 nos of 32 dia , 8x804=6432 mm^2
• provide 8 bars of 32 mm dia for the column = 6432mm^2 > 5046 mm^2.
• HENCE OK.

RESULT:-

• provided the details of longitudinal reinforcement for column 3A and 3B from foundation to terrace level.
• displayed shear reinforcement and lapping details as per IS 13920.