Analysis & Design of RCC shear walls in the model using ETABS
The etabs file for a G+6 building is provided. Run the analysis and design the RCC shear walls (show in the etabs model). The following challenge deals specifically with the shear wall of size 300x1500 at grid A-11 in the structural model.
- Extract values of longitudinal steel ratio, boundary element length and shear reinforcing ratio from the design results.
- Provide cross sectional steel arrangement of the shear wall from its base up to terrace, in compliance with provisions of IS 13920 – 2016. AutoCAD application can be used for this exercise. Alternatively, it can be drawn by hand as well.
- Provide elevation drawings of the reinforcement details of the shear wall from base up to terrace.
Vertical, Horizontal reinforcement &Boundary elemen widths of shear wall at Grid 11 from ETABS
- Classification ofShear Wall as per IS 13920-2016 hw/lw =21000/1500 = 14>2
- Minimum net vertical reinforcement a sper IS 13920 - 2016 2363mm2 = 0.025+0.01375(300/1500)
- Minimum vertical reinforcement within boundary limits
1440mm2 on left
1080mm2 on right
- Minimum Horizintal reinforcement in shear wall as per Is 13920-2016
- (Phmin) = 0.0025 which issame as 750mm2
- Maximum diameterof rebar for shear wall as per IS 13960-20161/10th of wall thockness = 30mm
- rebar diameter is 25mm is adopted
- Confining Reinforcementt Ash = 452mm2
