ALoad Calculation NBC
ALoad Calculation NBC
For Block - A
1 Ground 1-1 230 25 2.648 4.521 W4
2 2-2 230 25 2.648 2.438 -
3 230 25 2.648 2.515 -
4 3-3 230 25 2.648 2.438 -
5 115 25 2.648 3.023 -
6 4-4 230 25 2.648 4.572 -
7 C-C 230 25 2.648 3.810 -
8 230 25 2.648 4.572 W1
9 230 25 2.648 1.930 W2
10 D-D 230 25 2.648 3.810 -
11 230 25 2.648 4.572 -
12 230 25 2.648 1.930 -
13 First 1-1 230 25 2.648 4.521 W1
14 2-2 230 25 2.648 2.438 -
15 230 25 2.648 2.515 -
16 115 25 2.648 1.295 D2
17 3-3 230 25 2.648 2.884 -
18 230 25 2.648 2.515 W2
19 115 25 2.648 4.521 D3
20 4-4 230 25 2.648 4.521 -
21 A-A 230 25 2.648 4.877 W4
22 C-C 230 25 2.648 3.810 -
23 230 25 2.648 1.930 W2
24 D-D 230 25 2.648 3.810 -
25 230 25 2.648 4.572 -
26 230 25 2.648 1.930 -
27 Second 1-1 230 25 2.648 4.521 D2
28 2-2 230 25 2.648 2.438 -
29 230 25 2.648 2.515 -
30 115 25 2.648 3.607 -
31 3-3 230 25 2.648 2.884 -
32 230 25 2.648 2.515 W4
33 115 25 2.648 3.023 -
34 4-4 230 25 2.648 4.521 -
35 A-A 230 25 2.648 4.877 D2
36 C-C 230 25 2.648 3.810 -
37 230 25 2.648 1.930 W2
38 D-D 230 25 2.648 3.810 -
39 230 25 2.648 4.572 -
40 230 25 2.648 1.930 -
41 Third 1-1 230 25 2.648 4.521 D2
42 2-2 230 25 2.648 2.438 -
43 230 25 2.648 2.515 -
44 3-3 230 25 2.648 2.884 -
45 230 25 2.648 2.515 W4
46 115 25 2.648 3.023 -
47 4-4 230 25 2.648 4.521 -
48 A-A 230 25 2.648 4.877 D2
49 C-C 230 25 2.648 3.810 -
50 230 25 2.648 1.930 W2
51 D-D 230 25 2.648 3.810 -
52 230 25 2.648 4.572 -
53 230 25 2.648 1.930 -
54 Fourth 2-2 115 25 2.648 3.302 -
55 3-3 230 25 2.648 2.134 D1
56 4-4 230 25 2.648 4.572 -
57 C-C 230 25 2.648 1.930 W2
58 D-D 230 25 2.648 4.572 -
59 230 25 2.648 1.930 -
60 Parapet 230 25 1.000 1.000 -
61 Parapet 115 25 1.000 1.000 -
1 D1 1 4.877 6.16 -
- 2.743 11.46 -
- 2.819 11.50 -
- 2.743 11.46 -
- 4.877 4.41 -
- 4.877 12.09 -
- 4.115 11.94 -
1 D3 1 4.877 6.76 -
1 - 2.235 7.09 -
- 4.115 11.94 -
- 4.877 12.09 -
- 2.235 11.14 -
1 - 4.877 8.71 -
- 2.743 11.46 -
- 2.819 11.50 -
1 - 4.877 0.93 -
- 2.743 13.56 -
1 - 2.819 8.29 -
1 - 4.877 5.44 -
- 4.877 11.96 -
1 W3 1 5.182 8.64 -
- 4.115 11.94 -
1 - 2.235 7.09 -
- 4.115 11.94 -
- 4.877 12.09 -
- 2.235 11.14 -
1 W1 1 4.877 6.97 -
- 2.743 11.46 -
- 2.819 11.50 -
- 4.877 5.26 -
- 2.743 13.56 -
1 - 2.819 9.09 -
- 4.877 4.41 -
- 4.877 11.96 -
1 W3 1 5.182 8.32 -
- 4.115 11.94 -
1 - 2.235 7.09 -
- 4.115 11.94 -
- 4.877 12.09 -
- 2.235 11.14 -
1 W1 1 4.877 6.97 -
- 2.743 11.46 -
- 2.819 11.50 -
- 2.743 13.56 -
1 - 2.819 9.09 -
- 4.877 4.41 -
- 4.877 11.96 -
1 W3 1 5.182 8.32 -
- 4.115 11.94 -
1 - 2.235 7.09 -
- 4.115 11.94 -
- 4.877 12.09 -
- 2.235 11.14 -
- 4.877 4.81 -
1 - 4.877 3.55 -
- 4.877 12.09 -
1 - 2.235 7.09 -
- 4.877 12.09 -
- 2.235 11.14 -
- 1.000 4.87 -
- 1.000 2.69 -
B B
1.13
Y3
3.00
0.83
Y2
1.05
Y1
A A
X1 X2 X3
1.05 1.65 0.35
3.05
Number of risers : 18
Y1 : 1.05 m
Y2 : 0.83 m
Y3 : 1.13 m
X1 : 1.05 m
X2 : 1.65 m
X3 : 0.35 m
Minimum Thickness of Slab : 0.150 m
Top elevation : FL+ 3.00 m
Bottom elevation : FL+ 0.00 m
Design wind pressure (pd2) = 0.7 X pz ( as per clause 7.2 design wind pressure should not be less than 0.7pz)
= 0.93 KN/m²
<--------------------------
-7.98 KN/m -7.20 KN/m -7.20 KN/m -7.98 KN/m
-1.22 -1.10 -1.10 -1.22
-0.72 KN/m
-0.10
Y
-2.16 KN/m
Z
X D -0.30
-7.92 KN/m
-1.10
-9.36 KN/m
Y D -1.30
X
Z
C
C
C
C
𝛼[𝐾+(1−𝐾)(𝑇_𝑎/𝑇)^2 ]
α Ta ≤ T ≤ Tc Ta 0.1
(𝑇_𝑎/𝑇)^2
Ch(T) = Tc 0.5
Tc ≤ T ≤ 6 alpha 2.5
K 1.8
Soil
Soil Type
Type CC
Soil
SoilType
TypeCC
11 22 33 44 55 66 77
66 77
Calculation of Rayleigh Time Period of Building
S/N Floor Mass-X (kg) Mass-Y (kg) Disp-X Disp-Y Force(kN)
mm m mm m
Stair
1 17590.31 17590.31 35.182 0.035182 37.333 0.037333 200
Cover
2 Roof 81817.56 81817.56 26.105 0.026105 27.52 0.02752 150
3 2S 143873.28 143873.28 11.83 0.01183 12.199 0.012199 100
3902.5686
Block A
Elastic site spectra:
C(T) = Ch(T) * Z * I = 0.75
where,
Ch(T) = Spectral shape factor = 2.5
Z = Seismic zoning factor = 0.3 Pokhara
I = Importance factor = 1
Ductility factor:
Ultimate limit state, Rμ = 4
Serviceability limit state, Rs = 1
Overstrength factor:
Ultimate limit state, Ωu = 1.5
Serviceability limit state, Ωs = 1.25
5.00
Eccentricity in Percentage
4.00
3.00
2.00
1.00
0.00
1S 2S 3S
Building Floor
TABLE: Centers of Mass and Rigidity
Story Diaphragm Mass X Mass Y XCM YCM CumulativeCumulative
X Y XCCM YCCM XCR YCR
kg kg m m kg kg m m m m
1S D1 84518.12 84518.12 3.5657 6.1577 84518.12 84518.12 3.5657 6.1577 3.2141 6.6541
2S D2 84518.12 84518.12 3.5657 6.1577 84518.12 84518.12 3.5657 6.1577 3.1918 6.5886
3S D3 37416.15 37416.15 3.4452 7.4246 37416.15 37416.15 3.4452 7.4246 3.1867 6.573
Staircase Cover D4 6084.21 6084.21 4.85 11.075 6084.21 6084.21 4.85 11.075 4.4961 10.1751
Mass Irregularity Check for Block A
Mass X Mass Y Wi/Wi-1<1.5 Check Wi/Wi-1<1.5
Story Diaphragm
kg kg X-dir Y-dir
1S D1 144673.82 144673.82 1.394 OK 1.394
2S D2 103750.83 103750.83 1.257 OK 1.257
Roof D3 82517.60 82517.60
19683.94 19683.94
318620.77 318620.77
452095.99 452095.99
452095.99 452095.99
452095.99 452095.99
517521.61 517521.61
TABLE: Centers of Mass and Rigidity
Check Story Diaphragm Mass X Mass Y XCM YCM Cumulative X
kg kg m m kg
OK 1S D1 144673.82 144673.82 4.3818 5.4002 144673.82
OK 2S D2 103750.83 103750.83 4.2057 5.4528 103750.83
Roof D3 82517.6 82517.6 3.7736 5.6905 82517.6
Cumulative Y XCCM YCCM XCR YCR
kg m m m m
144673.82 4.3818 5.4002 4.3325 5.1081
103750.83 4.2057 5.4528 4.3499 5.1372
82517.6 3.7736 5.6905 4.359 5.137
TABLE: Modal Participating Mass Ratios
Case Mode Period UX UY Sum UX Sum UY RZ Sum RZ
sec
Modal 1 0.777 0.0002 0.8604 0.0002 0.8604 0.0172 0.0172
Modal 2 0.755 0.883 0.0002 0.8832 0.8607 0.0001 0.0173
Modal 3 0.678 0.000004185 0.0175 0.8832 0.8782 0.8636 0.8809
Modal 4 0.27 0.0001 0.0894 0.8833 0.9676 0.0039 0.8847
Modal 5 0.262 0.0896 0.0004 0.9729 0.9679 0.0041 0.8888
Modal 6 0.235 0.0047 0.0037 0.9776 0.9717 0.0835 0.9723
Modal 7 0.182 0.0012 0.0249 0.9789 0.9966 0.0005 0.9728
Modal 8 0.173 0.02 0.0013 0.9988 0.9979 0.0029 0.9757
Modal 9 0.159 0.0002 0.0004 0.999 0.9983 0.0217 0.9974
Modal 10 0.143 0.0002 0.0017 0.9992 1 0.0002 0.9976
Modal 11 0.135 0.0005 6.755E-06 0.9997 1 0.001 0.9987
Modal 12 0.124 0.0003 1.844E-06 1 1 0.0013 1
Modal 13 0.006 0 0 1 1 0 1
Modal 14 0.006 0 0 1 1 0 1
Modal 15 0.005 0 0 1 1 0 1
Modal 16 0.005 0 0 1 1 0 1
Modal 17 0.005 0 0 1 1 0 1
Modal 18 0.005 0 0 1 1 0 1
Modal 19 0.005 0 0 1 1 0 1
Modal 20 0.005 0 0 1 1 0 1
Modal 21 0.005 0 0 1 1 0 1
Modal 22 0.005 0 0 1 1 0 1
Modal 23 0.005 0 0 1 1 0 1
Modal 24 0.005 0 0 1 1 0 1
Modal 25 0.004 0 0 1 1 0 1
Modal 26 0.004 0 0 1 1 0 1
Modal 27 0.004 0 0 1 1 0 1
Modal 28 0.004 0 0 1 1 0 1
Modal 29 0.004 0 0 1 1 0 1
TABLE: Modal Direction Factors
Case Mode Period Frequency Circular Frequency Eigenvalue
sec
Modal 1 0.823 1.215 7.6323 58.2522
Modal 2 0.791 1.265 7.9465 63.1472
Modal 3 0.641 1.559 9.7958 95.9584
Modal 4 0.277 3.61 22.6849 514.6043
Modal 5 0.271 3.694 23.2098 538.697
Modal 6 0.22 4.536 28.4998 812.2381
Modal 7 0.175 5.707 35.8561 1285.6613
Modal 8 0.171 5.839 36.69 1346.1561
Modal 9 0.155 6.465 40.6237 1650.2821
Modal 10 0.136 7.377 46.3531 2148.6065
Modal 11 0.133 7.52 47.2511 2232.6673
Modal 12 0.12 8.364 52.5555 2762.077
Modal 13 0.006 154.041 967.8682 936768.8338
Modal 14 0.006 154.049 967.9186 936866.3886
Modal 15 0.006 163.059 1024.5269 1049655.33
Modal 16 0.006 163.066 1024.5754 1049754.716
Modal 17 0.006 169.209 1063.1709 1130332.297
Modal 18 0.006 169.212 1063.1887 1130370.189
Modal 19 0.006 175.63 1103.5131 1217741.188
Modal 20 0.006 175.641 1103.5865 1217903.124
Modal 21 0.006 181.754 1141.9938 1304149.93
Modal 22 0.006 181.771 1142.099 1304390.179
Modal 23 0.005 184.056 1156.4574 1337393.633
Modal 24 0.005 184.09 1156.6709 1337887.631
Modal 25 0.005 185.318 1164.3887 1355801.062
Modal 26 0.005 193.54 1216.05 1478777.625
Modal 27 0.005 193.806 1217.7185 1482838.443
Modal 28 0.005 193.811 1217.7488 1482912.178
Modal 29 0.005 199.883 1255.9022 1577290.4
Modal 30 0.005 206.527 1297.6451 1683882.751
Modal 31 0.005 206.527 1297.6495 1683894.279
Vertical Irregularity check Vertical Irregularity check Vertical Irregularity check
Story Load Case Stiffness X Stiffness Y Ratio Check Story Load Case Stiffness X Stiffness Y Ratio Check Story Load Case Stiffness X Stiffness Y Ratio
kN/m kN/m Ki/Ki-1 <1 kN/m kN/m Ki/Ki-1 <1 kN/m kN/m Ki/Ki-1
Fourth NBC_EQx_ULS 1 127255.095 0.00 0.612 Ok Fourth NBC_EQx_ULS 2 126469.885 0.00 0.611 Ok Fourth NBC_EQx_ULS 3 127938.161 0 0.612
Third NBC_EQx_ULS 1 207938.492 0.00 0.713 Ok Third NBC_EQx_ULS 2 206963.78 0.00 0.706 Ok Third NBC_EQx_ULS 3 208922.428 0 0.720
Second NBC_EQx_ULS 1 291651.428 0.00 0.409 Ok Second NBC_EQx_ULS 2 292990 0.00 0.407 Ok Second NBC_EQx_ULS 3 290325.032 0 0.411
First NBC_EQx_ULS 1 713821.92 0.00 0.025 Ok First NBC_EQx_ULS 2 720685.474 0.00 0.025 Ok First NBC_EQx_ULS 3 707087.866 0 0.025
Ground NBC_EQx_ULS 1 28676312.524 0.00 Ground NBC_EQx_ULS 2 28712509.442 0.00 Ground NBC_EQx_ULS 3 28640206.755 0
ity check
Check
<1
Ok
Ok
Ok
Ok
TABLE: Story Response ( Drift) for ULS Drift vs Story Elevation
Story Elevation Location X-Dir Y-Dir 14
m 12
< 0.025 OK
< 0.025 OK `
100.00
0.00
50.00
Earthquake
0.00
Earthquake
EQx-ULS
EQy-ULS
Torsion Irregularity Check Torsion Irregularity Check Torsion Irregularity Check
Story Load Case/Combo Direction Maximum Average Ratio Check
Story Load Case/Combo Direction Maximum Average Ratio Check Story Load Case/Combo Direction Maximum Average Ratio Check
mm <1.5 mm mm <1.5 mm mm <1.5
Staircase Cover NBC_EQx_ULS 1 X 1.756 1.487 1.181 Ok Staircase Cover NBC_EQx_ULS 2 X 1.986 1.584 1.254 Ok Staircase Cover NBC_EQx_ULS 3 X 1.526 1.391 1.097 Ok
Roof NBC_EQx_ULS 1 X 7.355 6.193 1.188 Ok Roof NBC_EQx_ULS 2 X 8.342 6.326 1.319 Ok Roof NBC_EQx_ULS 3 X 6.368 6.06 1.051 Ok
2S NBC_EQx_ULS 1 X 12.109 10.439 1.16 Ok 2S NBC_EQx_ULS 2 X 13.77 10.66 1.292 Ok 2S NBC_EQx_ULS 3 X 10.448 10.218 1.023 Ok
1S NBC_EQx_ULS 1 X 9.677 8.546 1.132 Ok 1S NBC_EQx_ULS 2 X 11.008 8.706 1.265 Ok 1S NBC_EQx_ULS 3 X 8.426 8.386 1.005 Ok