base plate heavy steel structure

Max. Compression = T

Try Size Base Plate mm x mm

Bearing pressure(Bp)= Kg/cm2

Grade of conc. For fdn. = M25

Permissible stress in compression = kg/sq.cm > kg/sq.cm O.K

t3 mm

c1 d1

F HD BOLTS

nos

a1

1

2

t2 mm

Here

c1 = mm

d1 = mm

a1 = mm

a1/d1 =

a3 =

Check for Thickness

For panel - 1

M1 = (Bp*c1^2)/2 = kg-cm/unit width

Required thickness(t) = (6M1/1584)^0.5 = cm

For panel - 2

M2 = a 3*Bp*d12

= kg-cm/unit width

Required thickness(t) = (6M2/1584)^0.5 = cm

Design for tension :-

Calculated tension = T

Provided nos F MS BOLTS Node no-10 Load case 1028

Bolt Value in tension per Bolt = T

Total allowable Tension = T > T Calculated tension

Now calculated Bolt tension per Bolt = T

Moments For tension (M t) = T-cm

Effective width (b) = cm

Hence thickness (t) = (6Mt*1000/1584b)^0.5 = cm

Now provided Base plate thickness = mm

400

52.08333

60 52.083

28

48

COLUMN BASE PLATE DESIGN

125.00 Node no- 259 Load Case - 7784

00 1

00

10

0

4

600

200 0.5 0.6 0.7

28

200

100 a1/d1

600

Mukhanov's chart

0.133

1.000 1 0.112

0.112 0.1200.074 0.088

2.10.9

0.097 0.107a3 0.060

1.4 21 1.2

0.112

200 0.126 0.132

0.8

2604.166667

1.2 0.12

10

0

70.68

4 48

3.140743173

10

0

2333.333333

2.97294195

100

17.67

58.9

20.52

82.08 70.68 100

Bolt value in tension = stress x net area = 1.2T/cm2 x 17.10cm

2 = 20.52 Ton

20

3.3399555

40 OK

Design for stiffner t2 =

Moment = M2*d1 = kg-cm provide 400 mm depth for

Using thickness = mm each stiffener

Depth = cm

Design for stiffner t3 =

Moment = M2*(c1+d1/2) = kg-cm

Using thickness = mm

Depth = cm

Design for Shear :- at

Calculated Shear(S) = T

Effective Shear = T * considering m =0.3

Considering depth of Shear key(d) = mm

Considering width of Shear key (b) = mm

So that bearing pressure = < kg/cm2

Now bending moment (M) = kg-cm at

Required (Z) = (M/1584) = cm3

Using thickness (at) = mm

hence Ixx = cm4

Z = > cm3 Required Z

Bending Stress s bc,cal = kg/cm2

Area(A) = 2*b*at = cm2

Now shear Stress tv= (T/A) = kg/cm2 < kg/cm2

So,Combind Stress= (s bc,cal )2+(t av)

2= mm

< 0.9fy = kg/cm2

Design for welding :- Vertical load (p)= T

Shear(s) = T kg/cm2

Provided weld thickness (w)= mm

Welding length = cm

d ac,cal = (p/(L*w*0.707) = kg/cm2

zshear, cal = (s/(L*w*0.707) = kg/cm2

Combind stress = (d ac,cal2 + 3*zshear, cal

2)0.5

= kg/cm2

< allowable stress 1100 kg/cm2

46666.66667

28

7.785

46666.66667

21.35

200

25

0

250

28

7.785

21.35 Node 10 load case 276

56.93333 60

320250

50

202.178

25

3287.76

263.0208 202.18

1217.584

1.700032641

290.37

502.930802

8

250

125

170.8 1000

21.352

00

130

1229.505672

2250

mm

125.00 56.933

-21.35 -70.68 -11.49 222 DL+LL+EL+DWL+X+MR 4+TL

20.92 103.57 19.19 223 DL+LL+EL+DWL+X+MR 5+TL

10 121 DL+LL+EL+MR 1+TL -7.33 4.03 3.73 224 DL+LL+EL+DWL+X+MR 6+TL

122 DL+LL+EL+MR 2+TL -7.32 5.16 3.78 225 DL+LL+EL+DWL+X+MR 7+TL

123 DL+LL+EL+MR 3+TL -7.37 3.84 3.76 226 DL+LL+EL+DWL+Z+MR 1+TL





128 DL+LL+EL+(WL +X)+MR 1+TL -8.06 16.3 0.03 231 DL+LL+EL+DWL+Z+MR 6+TL





133 DL+LL+EL+(WL +X)+MR 6+TL -8.07 16.56 -0.04 236 DL+LL+EL+DWL+Z+MR 4+TL




137 DL+LL+EL+(WL +X)+MR 3+TL -7.46 9.13 2.12 240 DL+LL+EL+DWL-X+MR 1+TL





142 DL+LL+EL+(WL +Z)+MR 1+TL -6.56 16.46 -0.29 245 DL+LL+EL+DWL-X+MR 6+TL







149 DL+LL+EL+(WL +Z)+MR 1+TL -5.95 9.47 1.77 252 DL+LL+EL+DWL-X+MR 6+TL

150 DL+LL+EL+(WL +Z)+MR 2+TL -5.94 10.31 1.82 253 DL+LL+EL+DWL-X+MR 7+TL

151 DL+LL+EL+(WL +Z)+MR 3+TL -5.97 9.32 1.8 254 DL+LL+EL+DWL-Z+MR 1+TL





156 DL+LL+EL+EQX (+X)+MR 1+TL -8.52 13.71 2.57 259 DL+LL+EL+DWL-Z+MR 6+TL







266 DL+LL+EL+DWL-Z+MR 6+TL

163 DL+LL+EL+EQX (-X)+MR 1+TL -2.48 -7.66 3.02 267 DL+LL+EL+DWL-Z+MR 7+TL

164 DL+LL+EL+EQX (-X)+MR 2+TL -2.47 -6.81 3.06 268 DL+WLX 1+TX

165 DL+LL+EL+EQX (-X)+MR 3+TL -2.51 -7.81 3.04 269 DL+WLX 2+TX

166 DL+LL+EL+EQX (-X)+MR 4+TL -2.49 -7.84 3.07 270 DL+WLZ 3+TX

167 DL+LL+EL+EQX (-X)+MR 5+TL -2.49 -7.86 3.07 271 DL+WLZ 4+TX

168 DL+LL+EL+EQX (-X)+MR 6+TL -2.49 -7.4 2.95 272 DL+WLX 1A+TX

169 DL+LL+EL+EQX (-X)+MR 7+TL -2.49 -7.67 3.03 273 DL+WLX 2A+TX

170 DL+LL+EL+EQX (+Z)+MR 1+TL -6.94 27.21 -1.39 274 DL+WLZ 3A+TX

171 DL+LL+EL+EQX (+Z)+MR 2+TL -6.93 28.06 -1.35 275 DL+WLZ 4A+TX

172 DL+LL+EL+EQX (+Z)+MR 3+TL -6.97 27.06 -1.37 276 DL+DIAGONAL WLX 1+TX

173 DL+LL+EL+EQX (+Z)+MR 4+TL -6.95 27.02 -1.35 277 DL+DIAGONAL WLX 2+TX

174 DL+LL+EL+EQX (+Z)+MR 5+TL -6.95 27.01 -1.34 278 DL+DIAGONAL WLZ 3+TX

175 DL+LL+EL+EQX (+Z)+MR 6+TL -6.95 27.47 -1.46 279 DL+DIAGONAL WLZ 4+TX

176 DL+LL+EL+EQX (+Z)+MR 7+TL -6.95 27.2 -1.38 280 DL+DIAGONAL WLX 1A+TX

177 DL+LL+EL+EQX (-Z)+MR 1+TL -4.06 -21.16 6.98 281 DL+DIAGONAL WLX 2A+TX

178 DL+LL+EL+EQX (-Z)+MR 2+TL -4.04 -20.31 7.02 282 DL+DIAGONAL WLZ 3A+TX

179 DL+LL+EL+EQX (-Z)+MR 3+TL -4.08 -21.31 7 283 DL+DIAGONAL WLZ 4A+TX

180 DL+LL+EL+EQX (-Z)+MR 4+TL -4.06 -21.35 7.03 284 DL+EQX+TX

181 DL+LL+EL+EQX (-Z)+MR 5+TL -4.06 -21.36 7.03 285 DL+EQZ+TX

182 DL+LL+EL+EQX (-Z)+MR 6+TL -4.06 -20.9 6.91 286 DL+EQX+TX

183 DL+LL+EL+EQX (-Z)+MR 7+TL -4.07 -21.17 6.99 287 DL+EQZ+TX

184 DL+LL+EL+(WL -X)+MR 1+TL -4.23 7.34 0.21 321 DL+LL+EL+MR 1-TL







191 DL+LL+EL+(WL -X)+MR 1+TL -3.53 -0.09 2.31 328 DL+LL+EL+(WL +X)+MR 1-TL

192 DL+LL+EL+(WL -X)+MR 2+TL -3.52 0.76 2.35 329 DL+LL+EL+(WL +X)+MR 2-TL




196 DL+LL+EL+(WL -X)+MR 6+TL -3.54 0.17 2.24 333 DL+LL+EL+(WL +X)+MR 6-TL


198 DL+LL+EL+(WL -Z)+MR 1+TL -5.16 -6.02 4.84 335 DL+LL+EL+(WL +X)+MR 1-TL







205 DL+LL+EL+(WL -Z)+MR 1+TL -4.54 -12.82 6.87 342 DL+LL+EL+(WL +Z)+MR 1-TL



208 DL+LL+EL+(WL -Z)+MR 4+TL -4.54 -13 6.91 345 DL+LL+EL+(WL +Z)+MR 4-TL




212 DL+LL+EL+DWL+X+MR 1+TL -15.88 36.22 -0.93 349 DL+LL+EL+(WL +Z)+MR 1-TL







219 DL+LL+EL+DWL+X+MR 1+TL -9.64 13.01 2.38 356 DL+LL+EL+EQX (+X)+MR 1-TL



-9.65 12.82 2.42 367 DL+LL+EL+EQX (-X)+MR 5-TL 7.28 -14.03 8.88 359 DL+LL+EL+EQX (+X)+MR 4-TL



-9.65 12.99 2.39 370 DL+LL+EL+EQX (+Z)+MR 1-TL 2.82 21.03 4.41 362 DL+LL+EL+EQX (+X)+MR 7-TL

-10.64 30.63 -1.79 371 DL+LL+EL+EQX (+Z)+MR 2-TL 2.83 21.88 4.45 363 DL+LL+EL+EQX (-X)+MR 1-TL




-10.65 30.43 -1.74 375 DL+LL+EL+EQX (+Z)+MR 6-TL 2.81 21.29 4.34

-10.65 30.89 -1.86 376 DL+LL+EL+EQX (+Z)+MR 7-TL 2.81 21.02 4.42

-10.65 30.62 -1.78 377 DL+LL+EL+EQX (-Z)+MR 1-TL 5.71 -27.34 12.79

-4.5 9.1 0.91 378 DL+LL+EL+EQX (-Z)+MR 2-TL 5.72 -26.49 12.83

-4.49 9.94 0.95 379 DL+LL+EL+EQX (-Z)+MR 3-TL 5.68 -27.48 12.81

-4.52 8.95 0.93 380 DL+LL+EL+EQX (-Z)+MR 4-TL 5.7 -27.52 12.83

-4.5 8.91 0.96 381 DL+LL+EL+EQX (-Z)+MR 5-TL 5.7 -27.53 12.84

-4.51 8.9 0.96 382 DL+LL+EL+EQX (-Z)+MR 6-TL 5.7 -27.08 12.72

-4.51 9.35 0.84 383 DL+LL+EL+EQX (-Z)+MR 7-TL 5.7 -27.35 12.8

-4.51 9.09 0.92 384 DL+LL+EL+(WL -X)+MR 1-TL 5.53 1.16 6.02

-11.47 15.35 2.1 385 DL+LL+EL+(WL -X)+MR 2-TL 5.54 2.01 6.06

-11.46 16.2 2.15 386 DL+LL+EL+(WL -X)+MR 3-TL 5.5 1.01 6.04

-11.5 15.2 2.13 387 DL+LL+EL+(WL -X)+MR 4-TL 5.52 0.97 6.06

-11.48 15.16 2.15 388 DL+LL+EL+(WL -X)+MR 5-TL 5.52 0.96 6.07

-11.48 15.15 2.16 389 DL+LL+EL+(WL -X)+MR 6-TL 5.52 1.42 5.95

-11.48 15.61 2.04 390 DL+LL+EL+(WL -X)+MR 7-TL 5.52 1.15 6.03

-11.48 15.34 2.11 391 DL+LL+EL+(WL -X)+MR 1-TL 6.23 -6.26 8.11

-5.54 -6.57 5.15 392 DL+LL+EL+(WL -X)+MR 2-TL 6.25 -5.42 8.16

-5.53 -5.72 5.2 393 DL+LL+EL+(WL -X)+MR 3-TL 6.21 -6.41 8.13

-5.57 -6.72 5.18 394 DL+LL+EL+(WL -X)+MR 4-TL 6.23 -6.45 8.16

-5.55 -6.76 5.2 395 DL+LL+EL+(WL -X)+MR 5-TL 6.23 -6.46 8.17

-5.55 -6.77 5.21 396 DL+LL+EL+(WL -X)+MR 6-TL 6.23 -6.01 8.04

-5.55 -6.31 5.09 397 DL+LL+EL+(WL -X)+MR 7-TL 6.22 -6.27 8.12

-5.55 -6.58 5.17 398 DL+LL+EL+(WL -Z)+MR 1-TL 4.6 -12.2 10.65

-2.65 -1.29 2.14 399 DL+LL+EL+(WL -Z)+MR 2-TL 4.61 -11.35 10.69

-2.64 -0.44 2.18 400 DL+LL+EL+(WL -Z)+MR 3-TL 4.58 -12.35 10.67

-2.67 -1.44 2.16 401 DL+LL+EL+(WL -Z)+MR 4-TL 4.6 -12.39 10.69

-2.65 -1.48 2.18 402 DL+LL+EL+(WL -Z)+MR 5-TL 4.59 -12.4 10.7

-2.66 -1.49 2.19 403 DL+LL+EL+(WL -Z)+MR 6-TL 4.59 -11.94 10.58

-2.66 -1.03 2.07 404 DL+LL+EL+(WL -Z)+MR 7-TL 4.59 -12.21 10.66

-2.66 -1.3 2.15 405 DL+LL+EL+(WL -Z)+MR 1-TL 5.23 -18.99 12.67

3.4 -23.38 5.17 406 DL+LL+EL+(WL -Z)+MR 2-TL 5.24 -18.15 12.71

3.41 -22.53 5.22 407 DL+LL+EL+(WL -Z)+MR 3-TL 5.2 -19.14 12.69

3.38 -23.53 5.2 408 DL+LL+EL+(WL -Z)+MR 4-TL 5.22 -19.18 12.72

3.4 -23.57 5.22 409 DL+LL+EL+(WL -Z)+MR 5-TL 5.22 -19.19 12.72

3.39 -23.58 5.23 410 DL+LL+EL+(WL -Z)+MR 6-TL 5.22 -18.74 12.6

3.4 -23.12 5.11 411 DL+LL+EL+(WL -Z)+MR 7-TL 5.22 -19 12.68

3.39 -23.39 5.18 412 DL+LL+EL+DWL+X+MR 1-TL -6.12 30.05 4.88

-10.92 39.51 -9.06 413 DL+LL+EL+DWL+X+MR 2-TL -6.1 30.89 4.92

-10.09 30.14 -6.3 414 DL+LL+EL+DWL+X+MR 3-TL -6.14 29.9 4.9

-8.92 39.72 -9.48 415 DL+LL+EL+DWL+X+MR 4-TL -6.12 29.86 4.92

-8.1 30.39 -6.73 416 DL+LL+EL+DWL+X+MR 5-TL -6.12 29.85 4.93

-5.82 27.56 -8.81 417 DL+LL+EL+DWL+X+MR 6-TL -6.12 30.3 4.81

-4.88 17.66 -6.02 418 DL+LL+EL+DWL+X+MR 7-TL -6.13 30.04 4.89

-7.06 9.74 -2.64 419 DL+LL+EL+DWL+X+MR 1-TL 0.12 6.83 8.18

-6.22 0.68 0.06

-21.35 66.07 -10.33

-13.03 35.11 -5.93

-14.36 58.62 -11.49

-6.17 29.9 -7.89

-15.47 38.24 -6.29

-7.56 9.01 -2.23

-3.7 16.05 -6.25

4.36 -13.4 -2.2

-11.53 36.05 -5.67

-9.43 54.05 -10.96

-3.48 7.56 -5.07

-5.58 -10.44 0.21

5.69 -4.2 11.46

5.7 -3.07 11.52

5.65 -4.4 11.49

5.68 -4.45 11.53

5.68 -4.47 11.53

5.68 -3.86 11.37

5.67 -4.22 11.48

1.7 10.13 5.83

1.71 10.97 5.88

1.68 9.98 5.86

1.7 9.94 5.88

1.7 9.93 5.89

1.7 10.38 5.77

1.69 10.12 5.84

2.33 3.1 7.9

2.34 3.95 7.94

2.3 2.95 7.92

2.32 2.91 7.95

2.32 2.9 7.95

2.32 3.36 7.83

2.32 3.09 7.91

3.2 10.28 5.52

3.21 11.13 5.56

3.18 10.13 5.54

3.2 10.09 5.56

3.19 10.08 5.57

3.2 10.54 5.45

3.19 10.27 5.53

3.82 3.29 7.58

3.83 4.14 7.62

3.79 3.14 7.6

3.81 3.1 7.62

3.81 3.09 7.63

3.81 3.55 7.51

3.81 3.28 7.59

1.25 7.53 8.37

1.26 8.38 8.41

1.22 7.38 8.39

1.24 7.34 8.42

1.24 7.33 8.42

1.24 7.79 8.3

1.24 7.52 8.38

7.28 -13.83 8.82

7.29 -12.99 8.87

7.26 -13.98 8.85

7.28 -14.02 8.87