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

AIM- 

to using  etabs file a G+6 building is provided. run the analysis and design the rcc shear wall.

PROCEDURE-

STEP 1 

• open the etabs model provided with challenge 
• then go to plan view of terrence plan view
• to see all the frame details

STEP 2 

 only allow to show grid A-11 shear wall

set working plan as all stories then select A-11 shear wall and turn show selected object only

STEP  3

then run the analysis so click on run amnalysis tab to get value of stucture

STEP 4 

design the shear wall click on shear wall design tab

STEP 5 

drop down the shear wall design option

and click onn the reinforcement detailling option

STEP 6 

now get information of boundary zones width from design results option

STEP 7 

same get longitudnal r/f from shear wall design results

STEP 8 

find out the story data

 open the story data from edit strory data option 

from edit tab

STEP 9 

shaer wall detailing calculation;

hence totel height of the wall is 21000mm and tthe width of the wall is 1500mm.

hence the ratio obtained as 21000/ 1500= 14 which is greater then 2 hence, it can be cosidered as a slender wall.

maximum diameter of the bar that can be used fron IS code = 1/10th of thicknessof taht part= 30mm

hence , we take the dia of bar as 25mm

maximum spacing between the bars should not exeed the minimum of the flllowing

a). 1/5*1500= 300mm

b). 3*300= 900mm

c). 450mm 

hence the maximum spacing is limited to 300mm

longitudnal reinforcement:

longitudnal reinforcement obtained

13128mm2

since we are using 25mm dia bars 

so the no. of bars reqired  13128/490= 28 bars 

hence the total area of the reinforcemnt is provided 13720mm2 hence its safe.

now minimum vertical reinforcenmnt to provided the brondry condition

0.008*1500*300= 3600mm2

in the web arrea mimimum reinforcement provided is 0.0025*1500*300= 1125mm2 and the provided amoumnt of reinforcement in web area is 3920mm2 hence it is safe.

SO LET US PROVIDE 8MM DIA @100MM C/C , THEN THE PROVIDED AREA OF 

REINFORCEMNT WILL BE 1000MM2. HENCE IT IS SAFE.