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8/7/2019 Seismic Base Shear
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Seismic Calculations Based On Uniform Building Code 1997 Edition
Date:
Seismic Zone Type < refer page 2-30 Table 16-I > Zone Zo
Soil Profile < refer page 2-35 Table 16-J >
Structural System < refer page 2-32 Table 16-N > IMRF Con
Building Type < refer page no. 2-14 > RCC Mom
Occupancy Category < refer page 2-30 Table 16-K > C Standard
Acceleration Near source factor < refer page 2-35 Table 16-S > Na 0
Velocity Near source factor < refer page 2-35 Table 16-T > Nv 0
Total dead load of the Structure in kips. W 2
Overall height of the building in feet hn 1
User define Time Period Tused 0
Fundamental Time Period in sec. = Ct * (Hn) ^ 3/4 T 0
Velocity Seismic Coefficient < refer page 2-35 Table 16-R > Cv 0
Acceleration Seismic Coefficient < refer page 2-34 Table 16-Q > Ca 0
Occupancy Importance Factor. I 1
Numerical Coefficient representative of structure inherit over strength as per Table 16-N pg 2-32 R 5
Numerica coefficient Section 1630.2.2 pg 2-14 Ct 0
Ft = 0.07*T*V
BASE SHEAR=V= ( Cv * I / (R * T) * W
< refer page no. 2-14 >
617
Vmax= (2.5 * Ca * I / R ) * W 353
Vmin= ( 0.11 * Ca * I W ) 85
V4=0.8*Z*Nv*I*W/R 0
GOVERNING BASE SHEAR = V 353
PROJECT: IDB
ST
Ss
BT
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1 2 3 4 5 6
Storey Storey Storey 2 * 3 E Wx*Hx 4 * 5' E(base to roof) Height Weight Hx * Wx & Fx Storey
Hx ft. Wx kips V / Ewx * Hx Shear K
1 4.9 76 374 Wx * Hx 5
2 10.5 2693 28266 348
3 0.0 0 0 0
4 0.0 0 0 V - Ft / EWx*Hx 0
5 0.0 0 0 0
0.01233
6 0.0 0 0 0
7 0.0 0 0 0
8 0.0 0 0 0
9 0.0 0 0 0
10 0.0 0 0 0
11 0.0 0 0 0
12 0.0 0 0 0
13 0.0 0 0 0
14 0.0 0 0 0
15 0.0 0 0 0
16 0.0 0 0 0
17 0.0 0 0 0
18 0.0 0 0 0
19 0.0 0 0 0
20 0.0 0 0 0
21 0.0 0 0 0
28640
Ft Concentrated load at top 0
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zone 3
Soil Profile 4
ZONE Z Shearwall Conc.(BFS)
Zone 1 1 0.08 Dual Conc.(SMRF)
Zone 2A 2 0.15 Dual Conc.(IMRF)
Zone 2B 3 0.2 SMRF Conc.
Zone 3 4 0.3 IMRF Conc.
Zone 4 5 0.4
1
2
3 Steel Moment Frame
4 RCC Moment Frame
5 Eccentric Braced Frame
6 All other Buildings
I
Occupany Category 1 0
SA
SB
SC
SD
SE
SF
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5.5 TABLE 16-Q - SEISMIC COEFFICIENT Ca
8.5 1 2 3 4 5
6.5 1 0.06 0.12 0.16 0.24 0.32
8.5 2 0.08 0.15 0.20 0.30 0.40
5.5 3 0.09 0.18 0.24 0.33 0.40
4 0.12 0.22 0.28 0.36 0.44
5 0.19 0.30 0.34 0.36 0.36
6 0.00 0.00 0.00 0.00 0.00
Ct
0.04
0.03 TABLE 16-R - SEISMIC COEFFICIENT Cv
0.03 1 2 3 4 5
0.02 1 0.06 0.12 0.16 0.24 0.322 0.08 0.15 0.20 0.30 0.40
3 0.13 0.25 0.32 0.45 0.56
SA
SB
SC
SD
SE
SF
SAS
B
SC
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Typical Area Of Building Typical Area Of Building
Area = 1042.0 m2 Area = 11210.3 ft2
Density of Conc 24 KN/m3 Density of Conc. 150 pcf
SDL 2 Kpa SDL 41.7 psf
Partition 0 Kpa Partition 0 psf
slab thk 0.25 m slab thk 10 in
Beams Width (A) 1.5 m Beams Width (A) 60 in
Depth (A) 0.5 m Depth (A) 10 in
beam Length (A) 154 m beam Length (A) 505.12 ft
Beams Width (B) 0.3 m Beams Width (B) 12 in
Depth (B) 0.8 m Depth (B) 31.5 in
beam Length (B) 121 m beam Length (B) 396.88 ft
Slab Load 6252.00 KN Slab Load 1401.3 kip
SDL 2084.0 KN SDL 467.5 kip
Part 0 KN Part 0.0 kip
Beam 3468.96 KN Beam 472.0 kip
Weight Of a single Story 11804.96 KN Weight Of a single Story 2341 kip
No of Storyeis 16 No of Storyeis 10
Total Weight Of Storyeis 188879 KN Total Weight Of Storyeis 23407 kip
Non Typ. Area Of Building Non Typ. Area Of Building
Area = 1035 m2 Area = 11135 ft2
Density of Conc 24 KN/m3 Density of Conc. 150 pcf
SDL 2.3 Kpa SDL 50 psf
Partition 1 Kpa Partition 20 psf slab thk 0.25 m slab thk 9 in
Beams Width (A) 0.5 m Beams Width (A) 20 in
Depth (A) 1.5 m Depth (A) 60 in
beam Length (A) 97.8 m beam Length (A) 320 ft
Beams Width (B) 0.3 m Beams Width (B) 12 in
Depth (B) 1 m Depth (B) 39 in
beam Length (B) 65.5 m beam Length (B) 215 ft
Slab Load 6210 KN Slab Load 1252.7 kip
SDL 2380.5 KN SDL 556.8 kip
Part 1035 KN Part 222.7 kip
Beam 2232 KN Beam 504.8 kip
Weight Of a single Story 11857.5 KN Weight Of a single Story 2537 kip
No of Storyeis 2 No of Storyeis 2
Total Weight Of Storyeis 23715 KN Total Weight Of Storyeis 5074 kip
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1042
20.5
14.5
578.4
2691.03
268.44
163.74 2850
76.75
158.62 4.7
15.42
2693.25
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Perpared By Syed Imran Khurshid
Concrete Building Frame System
Dual (IMRF) Dual frame System
SMRF (Special) Moment Resisting Frame
IMRF (Intermediate) Moment Resisting Frame
OMRF (Ordinary) Moment Resisting Frame
CBFS Stand for