Challenge

Analysis & Design of RCC shear walls in the model using ETABS

AIM:

In the etabs file for a G+6 building that is provided. Run the analysis and design the RCC 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.

PROCEDURE:

STEP 1:

STEP 2:

Run analysis.
Click on the shear wall design icon.
Once the analysis is complete toggle through the required Design details by clicking on Shear wall design Dropdown-> Display Design info.
Change the Design output to display the required output.

PIER LONGITUDINAL REINFORCING:

PIER SHEAR REINFORCING:

PIER BOUNDARY ZONE WIDTH:

Detailing Guidelines for shear wall:

Classification of Shear wall as per IS-13920-2016 clause 10.1.4: hw/lw = 21000/1500= 14>2 -

Slender wall

Minimum net Vertical reinforcement as per IS 13920:2016 Clause 26.5.1.6 Table-1 -

2363 mm^2.

1440 mm^2 on left(600mm width boundary element)

1080 mm^2 on right(450mm width boundary element)

Minimum horizontal reinforcement in shear wall as per IS-13920-2016 Table-1 (iii)-

ph(min)= 750 mm^2/m

Maximum diameter of rebar for shear wall as per IS-13920-2016 clause 10.1.8- 1/10th of wall thickness =

30mm, 25mm rebar is adopted

Confining reinforcement spacing for boundary element as per IS-13920-2016 clause 10.4.4 -

Maximum spacing of confining reinforcement in boundary element 150mm.

Confining reinforcement spacing within boundary element as per IS-13920-2016 clause 10.4.4 -

Ash= 452mm^2

Cross sectional steel arrangement of the shear wall :

Ship work like this
in your own course.