Reinforced Concrete Shear Wall Analysis and Design

Version: Mar-23-2018
Reinforced Concrete Shear Wall Analysis and Design
A structural reinforced concrete shear wall in a 5-story building provides lateral and gravity load resistance for the applied load as shown in the figure below. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. Figure 1
–

1
Code
Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14)
Reference
Reinforced Concrete Mechanics and Design, 7
th
Edition, 2016, James Wight, Pearson, Example 18-2
Design Data
f
c
’
= 4,000 psi normal weight concrete
f
y
= 60,000 psi Slab thickness = 7 in. Wall thickness = 10 in. Wall length = 18 ft Vertical reinforcement: #5 bars at 18 in. on centers in each face (A
s, vertical
= #5 @ 18 in.) Horizontal reinforcement: #4 bars at 16 in. on centers in each face (A
s, horizontal
= #4 @ 16 in.)

2
1.

Minimum Reinforcement Requirements (Reinforcement Percentage and Spacing)
1.1.

Horizontal Reinforcement Check
,2
2 0.20.002510 16
v horizontal
Ah s


ACI 318-14 (2.2)
,min
0.0025 0.0025 (o.k)
t
 

ACI 318-14 (11.6.2(b))

,max
3 310 30in.smallest of18in.smallest of18in.smallest of18in.18in./518/543.2in.
w
hsl
 

ACI 318-14 (11.7.3.1)
, ,max
16in. 18in. (o.k)
t provided
s s
1.2.

Vertical Reinforcement Check
,1
2 0.310.0034410 18
v verticall
Ah s


ACI 318-14 (2.2)
,min
0.00250.52.50.0025greater of 0.0025
wl w
hl
  

ACI 318-14 (11.6.2(a))

,min
0.00250.52.50.00250.00250.0025greater of greater of 0.00250.00250.0025
wl w
hl


,min
0.00344 0.0025 (o.k)
l l
 

ACI 318-14 (11.6.2(a))

,max
3 310 30in.smallest of18in.smallest of18in.smallest of18in.18in./318/372in.
lw
hsl
 

ACI 318-14 (11.7.2.1)

, ,max
18in. 18in. (o.k)
l provided l
s s