Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many...
-
Upload
beverley-bruce -
Category
Documents
-
view
217 -
download
0
Transcript of Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many...
![Page 1: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/1.jpg)
Seismic Design of Concrete Structure
![Page 2: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/2.jpg)
Seismic Design of Concrete Structure
• Earthquakes occur in many regions of the world. In certain locations where the intensity of the ground shaking is small, the designer does not have to consider seismic effects.
• In other locations-particularly in regions near an active geological fault (a fracture line in the rock structure), such as the San Andreas fault that runs along the western coast of California-large ground motions frequently occur that can damage or destroy buildings and bridges in large areas of cities
• Assuming the building is fixed at its base, the displacement of floors will vary from zero at the base to a maximum at the roof
![Page 3: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/3.jpg)
Earthquake focus and epicenter
![Page 4: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/4.jpg)
Distribution of magnitude 5 or greater earthquakes,
1980 - 1990
![Page 5: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/5.jpg)
![Page 6: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/6.jpg)
![Page 7: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/7.jpg)
There are several analytical procedures to determine the magnitude of the base shear for which buildings must be designed, we will
only consider the equivalent lateral force procedure, described in the ANSI/ASCE and UBC standard. Using this procedure, we compute the magnitude of the base shear as
![Page 8: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/8.jpg)
![Page 9: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/9.jpg)
21.0
10.01
DS
D
S
S
Palestine
![Page 10: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/10.jpg)
![Page 11: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/11.jpg)
Table 2:Design Coefficients & Factors for Basic Seismic-Force-Resisting Systems
![Page 12: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/12.jpg)
![Page 13: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/13.jpg)
Story Drift & The P-Delta Effect
![Page 14: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/14.jpg)
![Page 15: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/15.jpg)
![Page 16: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/16.jpg)
Allowable Story Drift,
![Page 17: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/17.jpg)
Important Factor
![Page 18: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/18.jpg)
![Page 19: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/19.jpg)
Overturning
![Page 20: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/20.jpg)
Example 1• Determine the design seismic forces acting at each
floor of the six-story office building in Figure below.• D.L=8kN/m2• L.L=2.5kN/m2• Shear wall system
18m
25m
N
![Page 21: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/21.jpg)
kN
IR
WSV
kNWISV
kNV
I
WallShearR
T
kNW
S
IRT
WSV
DS
DS
D
D
1134
14
)21600(21.0
20021600)21.0)(1(0441.0)(0441.0
1169)(462.0
2160010.0
1
4
462.0200488.0
21600)6)(18)(25(8
10.0
max
min
14
1
1
43
![Page 22: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/22.jpg)
T=0.462 < 0.5 then k=1
![Page 23: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/23.jpg)
Note:Column 4 = column 3a * Column 2
Fx = column 5 * (V = 1134) ((
Vx = cumulative column 6Mx = moment from Fx can calculated from shear Area
![Page 24: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/24.jpg)
Shear Wall Design
![Page 25: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/25.jpg)
Shear walls provide a high in-plane stiffness and strength for both lateral and gravity loads, and are ideally suitable for tall buildings, especially those conceived in reinforced concrete. Tall buildings designed to carry the entire lateral loading through shear walls can be economical to heights of around 40 stories. Taller structures should combine shear walls with other structural systems.
Introduction
![Page 26: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/26.jpg)
![Page 27: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/27.jpg)
![Page 28: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/28.jpg)
Shear Wall design
![Page 29: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/29.jpg)
Shear Wall Design Steps
I
MC
A
Pf
lbbhI
c
wwg
1212
33
'2.0 cc ff
1- Calculate External Load
u
u
u
P
V
M
2- boundary element check
Then boundary elements are not requiredif
![Page 30: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/30.jpg)
wb ll )25.02.0(
wl
wb
wb ll )25.02.0(
bbwb
wl
Then choose the one of:
![Page 31: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/31.jpg)
3- Longitudinal Reinforcement
At least two curtains of reinforcement are needed in the wall if the in-plane factored shear exceed a value of
6
'ccv fA
wwcv blA
ync
cvnuw
w
ync
cvnuw
w
ff
AVVl
hif
ff
AVVl
hif
4 5.1
6 2
'
'
6
4
6.0
'
maxccv
n
fAV
![Page 32: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/32.jpg)
Minimum reinforcement
6
0025.0
0025.0 6
'
'
ccvu
h
v
ccvu
fAVif
fAVif
0025.0
0015.0
16bar for
0020.0
0012.0
16bar for
h
v
h
v
![Page 33: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/33.jpg)
4- Verify adequacy of shear wall section at its base under combined axial load and bending moment
)2(in ent reinforcem of area
elementsboundary in ent reinforcem of area
diagramn interactio,
bwsv
sb
svssb
gs
g
u
wg
u
u
u
llA
A
AAA
AA
A
P
lA
M
P
M
wb ll )25.02.0(
bbwb
wl
![Page 34: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/34.jpg)
5- Boundary element transverse reinforcement
yh
c
ch
gcsh
yh
ccsh
f
f
A
AhSA
f
fhSA
'
'
1 3.0
09.0
ch
h
b cb
You must check it in two dimension
![Page 35: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/35.jpg)
Example 1 Design the following shear wall
1- Calculate External Load
Shear Force
Moment
mlw 4
mbw 2.0
![Page 36: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/36.jpg)
requiredelement Boundary
6)30(2.0/4.1810*067.1
28800
42.0
1500
067.112
42.0
12
26
33
MpamMNf
lbI
c
wwg
2- boundary element check
4)25.02.0(8.0
3.0bb2.0wb
4wl
![Page 37: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/37.jpg)
3- Longitudinal Reinforcement
At least two curtains of reinforcement are needed in the wall if the in-plane factored shear exceed a value of
kNVkNfA
uccv 6603.730
6
30)4000(200
6
'
Minimum reinforcement
6
'ccv
u
fAV
directioneach 25@12
45
44002001000002.00020.0
directioneach 25@12
45
4.224020010000012.00012.0
16bar for
max
22
max
22
cmuse
cmS
cmmmA
cmuse
cmS
cmmmA
svh
svv
![Page 38: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/38.jpg)
4- Verify adequacy of shear wall section at its base under combined axial load and bending moment
1816 element boundary each for 25.38
5.76)13.12(100
10010000)101(01.0
01.0
9.0
21.05.1101
101500
31.02.24000101
108800
10113.08.022.08.024
101500
.108800
2
225.06.2
226
6
3
6
6
262
3
6
usecm
cmAAA
cmmmAA
ksiMPaA
P
ksiMPalA
M
mmmA
NP
mNM
svssb
gs
g
u
wg
u
g
u
u
wb ll )25.02.0(
bbwb
wl
![Page 39: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/39.jpg)
![Page 40: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/40.jpg)
5- Boundary element transverse reinforcement
yh
c
ch
gcsh
yh
ccsh
f
f
A
AhSA
f
fhSA
'
'
1 3.0
09.0
ch
h
b cb
22'
4.52.543420
30)704)(120(09.0 09.0
4.20)8.13(230
4.70)8.13(280
120
cmmmf
fhSA
cmb
cmh
mmS
yh
ccsh
c
c
Check short directionCheck short direction
Check long direction
![Page 41: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/41.jpg)
2
22'
6.1
6.1160420
30)204)(120(09.0 09.0
4.20)8.13(230
4.70)8.13(280
120
cmA
cmmmf
fbSA
cmb
cmh
mmS
sh
yh
ccsh
c
c
Check long direction
in short direction use 2 legs close hoop & 2 internal legs
in short direction use 2 legs close hoop
1026.5)01.2(2)79.0(2 cm
10
16
26.1)79.0(2 cm
![Page 42: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/42.jpg)
![Page 43: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/43.jpg)
Design Example
5.0
5.0
5.0
5.0
5.0D.L=8kN/m2L.L=2.5kN/m2
20.0
20.0
3.0
5.0
L
3.0
3.0 3.01
2
7.5
10
Design Shear wall 1 & 2 in the figure belowGaza City
![Page 44: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/44.jpg)
20.0
20.0
3.0
5.0
L
3.0
3.0 3.01
2
7.5
10
1- calculate the length of shear wall 1
n
i i
ii
I
yIy
1
10
,0166.012
2.0
5.7
,08.212
2.05
1
33
1
2
3
2
y
LL
I
y
I
mL
L
II
L
II
yIyI
I
yIy
n
i i
ii
5.4
0)10(0166.0)5.7(08.2
0)10(0166.0)5.7(08.2
1
3
21
3
21
2211
1
x
y
![Page 45: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/45.jpg)
kN
IR
WSV
kNWISV
kNV
I
WallShearR
T
kNW
S
IRT
WSV
DS
DS
D
D
1050
25.14
)16000(21.0
2.18516000)21.0)(25.1(0441.0)(0441.0
909)(55.0
1600010.0
25.1
4
55.0250488.0
16000)5)(20)(20(8
10.0
max
min
25.14
1
1
43
2- Seismic Shear for the total building
![Page 46: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/46.jpg)
For the total BuildingT=0.55> 0.5 025.11 2
5.0 Tk
![Page 47: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/47.jpg)
V = 909 kNM =16726 kN.m
For shear walls
)(05.0.
)(
)(
22
1
LRCxIyI
yIb
I
Ia
MbaM
VbaV
iixiiy
ii
n
ii
i
i
i
x
y
![Page 48: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/48.jpg)
20.0
20.0
3.0
5.0
L
3.0
3.0 3.01
2
7.5
10
In this example without neglect the effect of twist force
For shear wall No. 1
42.012
52.012
5.42.0
125.42.0
1
33
3
n
ii
i
I
Ia
1
2
024.0
)2005.0()10(4)5.7()10(
102
1232.02
1252.02
125.42.0
125.42.0
333
3
b
b
![Page 49: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/49.jpg)
20.0
20.0
3.0
5.0
L
3.0
3.0 3.01
2
7.5
10
3- In this example we will neglect the effect of twist force
For shear wall No. 1
42.012
52.012
5.42.0
125.42.0
1
33
3
n
ii
i
I
Ia
mkNMaM
kNVaV
i
i
.70251672642.0)(
38290942.0)(
For shear wall No. 2
58.0a
mkNMaM
kNVaV
i
i
.97021672658.0)(
52890958.0)(
1
2
![Page 50: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/50.jpg)
requiredelement Boundary
6)30(2.0/072.1210*519.1
25.27025
5.42.0
1500
519.112
5.42.0
12
23
33
MpamMNf
lbI
c
wwg
boundary element check
5.4)2.0(9.0
mlw 5.4
mbw 2.0
4- Shear wall design
![Page 51: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/51.jpg)
Longitudinal Reinforcement
At least two curtains of reinforcement are needed in the wall if the in-plane factored shear exceed a value of
kNVkNfA
uccv 3826.821
6
30)4500(200
6
'
Minimum reinforcement
6
'ccv
u
fAV
directioneach 25@12
45
44002001000002.00020.0
directioneach 25@12
45
4.224020010000012.00012.0
16bar for
max
22
max
22
cmuse
cmS
cmmmA
cmuse
cmS
cmmmA
svh
svv
![Page 52: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/52.jpg)
Verify adequacy of shear wall section at its base under combined axial load and bending moment
1616 element boundary each for 8.32
6.65)13.12(90
909000)109.0(01.0
01.0
9.0
24.066.1109.0
101500
25.073.14500109.0
107025
109.09.02.05.4
101500
.108800
2
225.0
)9.0(25.4
226
6
3
6
6
262
3
6
usecm
cmAAA
cmmmAA
ksiMPaA
P
ksiMPalA
M
mmmA
NP
mNM
svssb
gs
g
u
wg
u
g
u
u
5.4)2.0(9.0
mlw 5.4
mbw 2.0
![Page 53: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/53.jpg)
![Page 54: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/54.jpg)
Boundary element transverse reinforcement
yh
c
ch
gcsh
yh
ccsh
f
f
A
AhSA
f
fhSA
'
'
1 3.0
09.0
ch
h
b cb
22'
2.59.516420
30)804)(100(09.0 09.0
4.10)8.13(220
4.80)8.13(290
100
cmmmf
fhSA
cmb
cmh
mmS
yh
ccsh
c
c
Check short directionCheck short direction
Check long direction
![Page 55: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/55.jpg)
Check long direction
in short direction use 2 legs close hoop & 2 internal legs
in short direction use 2 legs close hoop
1026.5)01.2(2)79.0(2 cm
10
16
26.1)79.0(2 cm
22'
7.08.66420
30)104)(100(09.0 09.0
4.10)8.13(220
4.80)8.13(290
100
cmmmf
fhSA
cmb
cmh
mmS
yh
ccsh
c
c
Repeat the last procedure for Shear wall 2
![Page 56: Seismic Design of Concrete Structure. Seismic Design of Concrete Structure Earthquakes occur in many regions of the world. In certain locations where.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e4a5503460f94b3dd4f/html5/thumbnails/56.jpg)