Calculation of Buckstay

Project: Sangatta 2x7MW Revision: 01 Date: 8-Feb-2004 13303

BUCKSTAY STEEL SELECTION Maximum Buckstay Spacing Buckstay Steel Size-AISC Buckstay Steel Size-JIS Steel Material

5,000 m H294X200 H250x250x9 A36

BUCKSTAY ELEV.

PLATFORM STEEL ELEV.

BUCKSTAY ELEV.

PLATFORM STEEL ELEV.

BUCKSTAY ELEV.

PLATFORM STEEL ELEV.

BUCKSTAY ELEV.

PLATFORM STEEL ELEV.

BUCKSTAY ELEV.

PLATFORM STEEL ELEV.

BUCKSTAY ELEV.

SIDE WALL VIEW

FRONT/REAR WALL VIEW

Note: 1. Bold lines (cyan) are buckstay steel elevation. 2. Dimension shown are approximation buckstay spacing, drafting to locate at proper elevation without exceeding maximum buckstay spacing. 3. Drafting to avoid buckstay location at opening, shoot blower and burner access. Revision Log: 00. Fisrt Release 01. Change design pressure

File Name:103907377.xls.ms_office

By : KPB Checked By: EPO

1/8

Beaver Valley Proposal

7/19/2012

Buckstay vertical spacing determination under tube stress and deflection under operating pressure & dead load: Wall Properties Wall location Width, W Depth, D Pressure (max. permissable/yield), Pf

32 1.2 40 37

Furnace Wall Rear 12.6 16.4 32 1.2 40 37

in in in °F psi psi

SA-192 3.00 0.177 4.02 626 910 13,040

SA-192 3.00 0.177 4.02 626 910 13,040

SA-192 3.00 0.177 4.02 626 910 13,040

Inside Diameter Area, A1

in2

5.50

5.50

5.50

Metal Area, A2

in2

1.57

1.57

1.57

in3

3.50 1.047

3.50 1.047

3.50 1.047

kip/tube psi

1.1 3,184

1.1 3,184

0.8 3,184

Wall Loading, P Approximate number of load carrying tubes, N Tube Properties Material Outside Diameter, OD Thickness, t Spacing, s Design Temperature, Td Design Pressure, Ptd Hot Allowable Stress, SH

Longitudinal Stress Factor (A1/A2) Tube Section Modulus, Z Calculation Wall loading/Number of Load carrying Tube Longitudinal Stress, SLP

Front ft ft in wg psi kips pcs

Side

32 1.2 40 50

Tension Stress at Weight, SWT

psi

688

688

509

Total Longitudinal Stress, STOT Uniform pressure load, W Allowable Stress, SA

psi lbs/in psi

3,872 4.63 24,929

3,872 4.63 24,929

3,693 4.63 24,907

Allowable Stress for Bending Only, SB Buckstay Spacing

psi in ft in in

21,057 218.35 18.20 216.00 216

21,057 218.35 18.20 216.00 216

21,214 219.16 18.26 216.00 216

feet m

18.0 5.0

18.0 5.0

18.0 5.0

mm

5,486.40

5,486.40

5,486.40

Spacing no greater than 72*OD Buckstay Spacing Used, S

103907377.xls.ms_office/Spacing

By : TJS

2/8

Beaver Valley Proposal

7/19/2012

Buckstay steel sizing determination due to operating pressure @ used vertical space. Wall Load & Location Buckstay Location Buckstay Elevation Buckstay Steel Yield Strength Wall Pressure Wall width / Buckstay Span, L To upper buckstay elevation To lower buckstay elevation Tributary Distance = (used vertical space) Uniform Load End Reaction Maximum Bending Moment Section Modulus Required Buckstay Steel Properties

mm ft ksi in wg psf mm ft mm mm mm ft kips/ft kips kips.in in3

Steel Profile Used Inertia Section Modulus d/Af Actual Bending Stress, Fb Lmax (F1-8, ASD page 5-47 and Graph on page 2-149)

in4 in3

Deflection at design pressure

ft in mm

Deflection Limitation L/360 at 8 in wg L/360 at design pressure Deflection Check Result

103907377.xls.ms_office/Size

ksi in ft

in in

Front 9,535 31.28 36 32 166.46 3,850 12.63 14,335 6,235 4,050 13.25 2.206 13.93 528 24.44

Furnace Wall Rear 9,535 31.28 36 32 166.46 3,850 12.63 14,335 6,235 4,050 13.25 2.206 13.93 528 24.44

Side 9,535 31.28 36 32 166.46 4,998 16.40 14,335 6,235 4,050 13.25 2.206 18.08 890 41.18

H294X200

H294X200

H294X200

271 47 0.12 11.22 8,732 728 No Leveler Req. 1.93 0.16 4.07

271 47 0.12 11.22 8,732 728 No Leveler Req. 1.93 0.16 4.07

271 47 0.12 18.91 5,181 432 No Leveler Req. 5.47 0.46 11.58

0.42 1.68 Deflection OK

0.42 1.68 Deflection OK

0.55 2.19 Deflection OK

By: TJS

3250 1625

2920 1460 3085

3/8

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Designation

d/Af 1.31 1.73 1.77 3.77

Ix in4 20,300 15,000 16,800 7,800

Sx in3 1,110 837 895 439

rx in 15.20 14.90 14.90 14.00

Iy in4 1,300 940 528 225

Sy in3 156.0 114.0 86.5 37.7

ry in 3.83 3.73 2.65 2.38

W36x300 W36x230 W36x256 W36x135 W33x291 W33x201 W33x152 W33x118

1.27 1.86 2.74 3.87

17,700 11,500 8,160 5,900

1,010 684 487 359

14.40 14.00 13.50 13.00

1,160 749 273 187

146.0 95.2 47.2 32.6

3.69 3.56 2.47 2.32

W30x261 W30x173 W30x132 W30x124 W30x116 W30x108 W30x99 W30x90

1.26 1.91 2.87 3.09 3.36 3.75 4.23 4.65

13,100 8,200 5,770 5,360 4,930 4,470 3,990 3,620

827 539 380 355 329 299 269 245

13.10 12.70 12.20 12.10 12.00 11.90 11.70 11.70

959 598 196 181 164 146 128 115

127.0 79.8 37.2 34.4 31.3 27.9 24.5 22.1

3.54 3.43 2.25 2.23 2.19 2.15 2.10 2.09

W27x258 W27x235 W27x217 W27x194 W27x178 W27x161 W27x146 W27x129 W27x114 W27x102 W27x94 W27x84

1.15 1.25 1.34 1.49 1.66 1.82 2.01 2.51 2.91 3.26 3.62 4.19

10,800 9,660 8,870 7,820 6,990 6,280 5,630 4,760 4,090 3,620 3,270 2,850

742 674 624 556 502 455.0 411.0 345.0 299.0 267.0 243.0 213.0

11.90 11.80 11.80 11.70 11.60 11.50 11.40 11.20 11.00 11.00 10.90 10.70

859 768 704 618 555 497 443 184 159 139 124 106

120.0 108.0 99.8 88.1 78.8 70.9 63.5 36.8 31.5 27.8 24.8 21.2

3.37 3.33 3.32 3.29 3.26 3.24 3.21 2.21 2.18 2.15 2.12 2.07

W24X176 W24X162 W24X146 W24X131 W24X117 W24X104

1.46 1.58 1.76 1.98 2.23 2.52

5,680 5,170 4,580 4,020 3,540 3,100

450.0 414.0 371.0 329.0 291.0 258.0

10.50 10.40 10.30 10.20 10.10 10.10

479 443 391 340 297 259

74.3 68.4 60.5 53.0 46.5 40.7

3.04 0.05 3.01 2.97 2.94 2.91

W24X103 W24X94 W24X84 W24X76 W24X68

2.78 3.06 3.47 3.91 4.52

3,000 2,700 2,370 2,100 1,830

245.0 222.0 196.0 176.0 154.0

9.96 9.87 9.79 9.69 9.55

119 109 94 83 70

26.5 24.0 20.9 18.4 15.7

1.99 1.98 1.95 1.92 1.87

W24X62 W24X55

5.72 6.66

1,550 1,350

131.0 114.0

9.23 9.11

35 29

9.8 8.3

1.38 1.34

W21X166

1.33

4,280

380.0

9.36

435

70.1

2.98

50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101

W21X147 W21X132 W21X122 W21X111 W21X101

1.53 1.70 1.82 1.99 2.17

3,630 3,220 2,960 2,670 2,420

329.0 295.0 276.0 249.0 227.0

9.17 9.12 9.09 9.05 9.02

376 333 305 274 248

60.1 53.5 49.2 44.5 40.3

2.95 2.93 2.92 2.90 2.89

W21X93 W21X83 W21X73 W21X68 W21X62

2.76 3.07 3.46 3.73 4.14

2,070 1,830 1,600 1,480 1,330

192.0 171.0 151.0 140.0 127.0

8.70 8.67 8.64 8.60 8.54

93 81 71 65 58

22.1 19.5 17.0 15.7 13.9

1.84 1.83 1.81 1.80 1.77

W21X57 W21X50 W21X44

4.94 5.96 7.06

1,170 984 843

111.0 94.5 81.6

8.36 8.18 8.06

31 25 21

9.4 7.6 6.4

1.35 1.30 1.26

W18X143 W18X130

1.32 1.44

2,750 2,460

282.0 256.0

8.09 8.03

311 278

55.5 49.9

2.72 2.70

W18X119 W18X106 W18X97 W18X86 W18X76

1.59 1.78 1.92 2.15 2.43

2,190 1,910 1,750 1,530 1,330

231.0 204.0 188.0 166.0 146.0

7.90 7.84 7.82 7.77 7.73

253 220 201 172 152

44.9 39.4 36.1 31.6 27.6

2.69 2.66 2.65 2.63 2.61

W18X71 W18X65 W18X60 W18X55 W18X50

2.99 3.22 3.47 3.82 4.21

1,170 1,070 984 890 800

127.0 117.0 108.0 98.3 88.9

7.50 7.49 7.47 7.41 7.38

60 55 50 45 40

15.8 14.4 13.3 11.9 10.7

1.70 1.69 1.69 1.67 1.65

W18X46 W18X40 W18X35

4.93 5.67 6.94

712 612 510

78.8 68.4 57.6

7.25 7.21 7.04

23 19 15

7.4 6.4 5.1

1.29 1.27 1.22

W16X100 W16X89 W16X77 W16X67

1.65 1.85 2.11 2.40

1,490 1,300 1,110 954

175.0 155.0 134.0 117.0

7.10 7.05 7.00 6.96

186 163 138 119

35.7 31.4 26.9 23.2

2.51 2.49 2.47 2.46

W16X57 W16X50 W16X45 W16X40 W16X36

3.23 3.65 4.06 4.53 5.28

758 659 586 518 448

92.2 81.0 72.7 64.7 56.5

6.72 6.68 6.65 6.63 6.51

43 37 33 29 25

12.1 10.5 9.3 8.3 7.0

1.60 1.59 1.57 1.57 1.52

W16X31 W16X26

6.53 8.27

375 301

47.2 38.4

6.41 6.26

12 10

4.5 3.5

1.17 1.12

W14X730 W14X665 W14X605

0.25 0.27 0.29

14,300 12,400 10,800

1,280.0 1,150.0 1,040.0

8.17 7.98 7.80

4,720 4,170 3,680

527.0 472.0 423.0

4.69 4.62 4.55

102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153

W14X550 W14X500 W14X455

0.31 0.33 0.35

9,430 8,210 7,190

931.0 838.0 756.0

7.63 7.48 7.33

3,250 2,880 2,560

378.0 339.0 304.0

4.49 4.43 4.38

W14X426 W14X398 W14X370 W14X342 W14X311 W14X283 W14X257 W14X233 W14X211 W14X193 W14x176 W14X159 W14X145

0.37 0.39 0.41 0.43 0.47 0.50 0.54 0.59 0.64 0.68 0.74 0.81 0.88

6,600 6,000 5,440 4,900 4,330 3,840 3,400 3,010 2,660 2,400 2,140 1,900 1,710

707.0 656.0 607.0 559.0 506.0 459.0 415.0 375.0 338.0 310.0 281.0 254.0 232.0

7.26 7.16 7.07 6.98 6.88 6.79 6.71 6.63 6.55 6.50 6.43 6.38 6.33

2,360 2,170 1,990 1,810 1,610 1,440 1,290 1,150 1,030 931 838 748 677

283.0 262.0 241.0 221.0 199.0 179.0 161.0 145.0 130.0 119.0 107.0 96.2 87.3

4.34 4.31 4.27 4.24 4.20 4.17 4.13 4.10 4.07 4.05 4.02 4.00 3.98

W14X132 W14X120 W14X109 W14X99 W14X90

0.97 1.05 1.14 1.25 1.36

1,530 1,380 1,240 1,110 999

209.0 190.0 173.0 157.0 143.0

6.28 6.24 6.22 6.17 6.14

548 495 447 402 362

74.5 67.5 61.2 55.2 49.9

3.76 3.74 3.73 3.71 3.70

W14X82 W14X74 W14X68 W14X61

1.65 1.79 1.94 2.15

882 796 723 640

123.0 112.0 103.0 92.2

6.05 6.04 6.01 5.98

148 134 121 107

29.3 26.6 24.2 21.5

2.48 2.48 2.46 2.45

W14X53 W14X48 W14X43

2.62 2.89 3.22

541 485 428

77.8 70.3 62.7

5.89 5.85 5.82

58 51 45

14.3 12.8 11.3

1.92 1.91 1.89

W14X38 W14X34 W14X30

4.04 4.56 5.34

385 340 291

54.6 48.6 42.0

5.87 5.83 5.73

27 23 20

7.9 6.9 5.8

1.55 1.53 1.49

W14X26 W14X22

6.59 8.20

245 199

35.3 29.0

5.65 5.54

9 7

3.5 2.8

1.08 1.04

W12X190 W12X170 W12X152 W12X136 W12X120 W12X106 W12X96 W12X87 W12X79 W12X72 W12X65

0.65 0.72 0.79 0.87 0.95 1.07 1.16 1.28 1.39 1.52 1.67

1,890 1,650 1,430 1,240 1,070 933 833 740 662 597 533

263.0 235.0 209.0 186.0 163.0 145.0 131.0 118.0 107.0 97.4 87.9

5.82 5.74 5.66 5.58 5.51 5.47 5.44 5.38 5.34 5.31 5.28

589 517 454 398 345 301 270 241 216 195 174

93.0 82.3 72.8 64.2 56.0 49.3 44.4 39.7 35.8 32.4 29.1

3.25 3.22 3.19 3.16 3.13 3.11 3.09 3.07 3.05 3.04 3.02

154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205

W12x58 W12X53

1.90 2.10

475 425

78.0 70.6

5.28 5.23

107 96

21.4 19.2

2.51 2.48

W12X50 W12X45 W12X40

2.36 2.61 2.90

394 350 310

64.7 58.1 51.9

5.18 5.15 5.13

56 50 44

13.9 12.4 11.0

1.96 1.94 1.93

W12X35 W12X30 W12X26

3.66 4.30 4.95

285 238 204

45.6 38.6 33.4

5.25 5.21 5.17

25 20 17

7.5 6.2 5.3

1.54 1.52 1.51

W12X22 W12X19 W12X16 W12X14

7.19 8.67 11.30 13.30

156 130 103 89

25.4 21.3 17.1 14.9

4.91 4.82 4.67 4.62

5 4 3 2

2.3 1.9 1.4 1.2

0.85 0.82 0.77 0.75

W10X112 W10X100 W10X88 W10X77 W10X68 W10X60 W10X54 W10X49

0.87 0.96 1.07 1.20 1.33 1.49 1.64 1.78

716 623 534 455 394 341 303 272

126.0 112.0 98.5 85.9 75.7 66.7 60.0 54.6

4.66 4.60 4.54 4.49 4.44 4.39 4.37 4.35

236 207 179 154 134 116 103 93

45.3 40.0 34.8 30.1 26.4 23.0 20.6 18.7

2.68 2.65 2.63 2.60 2.59 2.57 2.56 2.54

W10X45 W10X39 W10X33

2.03 2.34 2.81

248 209 170

49.1 42.1 35.0

4.32 4.27 4.19

53 45 37

13.3 11.3 9.2

2.01 1.98 1.94

W10X30 W10X26 W10X22

3.53 4.07 4.91

170 144 118

32.4 27.9 23.2

4.38 4.35 4.27

17 14 11

5.8 4.9 4.0

1.37 1.36 1.33

W10X19 W10X17 W10X15 W10X12

6.45 7.64 9.25 11.90

96 82 69 54

18.8 16.2 13.8 10.9

4.14 4.05 3.95 3.90

4 4 3 2

2.1 1.8 1.5 1.1

0.87 0.84 0.81 0.79

W8X67 W8X58 W8x48 W8x40 W8x35 W8x31

1.16 1.31 1.53 1.83 2.05 2.30

272 228 184 146 127 110

60.4 52.0 43.3 35.5 31.2 27.5

3.72 3.65 3.61 3.53 3.51 3.47

89 75 61 49 43 37

21.4 18.3 15.0 12.2 10.6 9.3

2.12 2.10 2.08 2.04 2.03 2.02

W8x28 W8x24

2.65 3.05

98 83

24.3 20.9

3.45 3.42

22 18

6.6 5.6

1.62 1.61

W8X21 W8X18

3.93 4.70

75 62

18.2 15.2

3.49 3.43

10 8

3.7 3.0

1.26 1.23

W8X15

6.41

48

11.8

3.29

3

1.7

0.88

206 207 208 209 210 211 212 213 214 215 216 217 218 219 220

W8X13 W8X10

7.83 9.77

40 31

9.9 7.8

3.21 3.22

3 2

1.4 1.1

0.84 0.84

W6X25 W6X20 W6X15

2.31 2.82 3.85

53 41 29

16.7 13.4 9.7

2.70 2.66 2.56

17 13 9

5.6 4.4 3.1

1.52 1.50 1.46

W6X16 W6X12 W6X9

3.85 5.38 6.96

32 22 16

10.2 7.3 5.6

2.60 2.49 2.47

4 3 2

2.2 1.5 1.1

0.97 0.92 0.91

H294X200 H250X255 H300X300

0.12 0.07 0.07

271 276 490

47.0 56.1 83.0

0.49 0.41 0.52

38 93 162

9.8 18.6 27.5

0.19 0.24 0.30