Project: Sangatta 2x7MWRevision: 01Date: 8-Feb-2004

File Name:document.xls By : KPB Checked By: EPO 1/8

13303

BUCKSTAY STEEL SELECTIONMaximum Buckstay Spacing 5,000 mBuckstay Steel Size-AISC H294X200Buckstay Steel Size-JIS H250x250x9Steel Material A36

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 Release01. Change design pressure

PLATFORMSTEEL ELEV.

STEEL ELEV.PLATFORM

SIDE WALL VIEW

PLATFORMSTEEL ELEV.

PLATFORMSTEEL ELEV.

PLATFORMSTEEL ELEV.

FRONT/REAR WALL VIEW

BUCKSTAYELEV.

BUCKSTAYELEV.

BUCKSTAYELEV.

ELEV.

BUCKSTAYELEV.

BUCKSTAYELEV.

BUCKSTAY

Beaver Valley Proposal 04/07/2023

document.xls/Spacing By : TJS 2/8

Buckstay vertical spacing determination under tube stress and deflectionunder operating pressure & dead load:Wall Properties Furnace WallWall location Front Rear SideWidth, W ft 12.6Depth, D ft 16.4Pressure (max. permissable/yield), Pf in wg 32 32 32

psi 1.2 1.2 1.2Wall Loading, P kips 40 40 40Approximate number of load carrying tubes, N pcs 37 37 50Tube PropertiesMaterial SA-192 SA-192 SA-192Outside Diameter, OD in 3.00 3.00 3.00Thickness, t in 0.177 0.177 0.177Spacing, s in 4.02 4.02 4.02Design Temperature, Td °F 626 626 626Design Pressure, Ptd psi 910 910 910

psi 13,040 13,040 13,040

in2 5.50 5.50 5.50

in2 1.57 1.57 1.57

3.50 3.50 3.50Tube Section Modulus, Z in3 1.047 1.047 1.047CalculationWall loading/Number of Load carrying Tube kip/tube 1.1 1.1 0.8

psi 3,184 3,184 3,184

psi 688 688 509

psi 3,872 3,872 3,693Uniform pressure load, W lbs/in 4.63 4.63 4.63

psi 24,929 24,929 24,907

psi 21,057 21,057 21,214Buckstay Spacing in 218.35 218.35 219.16

ft 18.20 18.20 18.26Spacing no greater than 72*OD in 216.00 216.00 216.00Buckstay Spacing Used, S in 216 216 216

feet 18.0 18.0 18.0m 5.0 5.0 5.0mm 5,486.40 5,486.40 5,486.40

Hot Allowable Stress, SH

Inside Diameter Area, A1

Metal Area, A2

Longitudinal Stress Factor (A1/A2)

Longitudinal Stress, SLP

Tension Stress at Weight, SWT

Total Longitudinal Stress, STOT

Allowable Stress, SA

Allowable Stress for Bending Only, SB

Beaver Valley Proposal 04/07/2023

document.xls/Size By: TJS 3/8

Buckstay steel sizing determination due to operating pressure @ used vertical space.Wall Load & Location Furnace WallBuckstay Location Front Rear SideBuckstay Elevation mm 9,535 9,535 9,535 3250 2920

ft 31.28 31.28 31.28 1625 1460Buckstay Steel Yield Strength ksi 36 36 36 3085Wall Pressure in wg 32 32 32

psf 166.46 166.46 166.46Wall width / Buckstay Span, L mm 3,850 3,850 4,998

ft 12.63 12.63 16.40To upper buckstay elevation mm 14,335 14,335 14,335To lower buckstay elevation mm 6,235 6,235 6,235Tributary Distance mm 4,050 4,050 4,050= (used vertical space) ft 13.25 13.25 13.25Uniform Load kips/ft 2.206 2.206 2.206End Reaction kips 13.93 13.93 18.08Maximum Bending Moment kips.in 528 528 890

Section Modulus Required 24.44 24.44 41.18Buckstay Steel Properties

Steel Profile Used H294X200 H294X200 H294X200

Inertia in4 271 271 271

Section Modulus 47 47 47d/Af 0.12 0.12 0.12Actual Bending Stress, Fb ksi 11.22 11.22 18.91

in 8,732 8,732 5,181Graph on page 2-149) ft 728 728 432

No Leveler Req. No Leveler Req. No Leveler Req.Deflection at design pressure ft 1.93 1.93 5.47

in 0.16 0.16 0.46mm 4.07 4.07 11.58

Deflection LimitationL/360 at 8 in wg in 0.42 0.42 0.55L/360 at design pressure in 1.68 1.68 2.19Deflection Check Result Deflection OK Deflection OK Deflection OK

in3

in3

Lmax (F1-8, ASD page 5-47 and

Designation d/Af Ix Sx rx Iy Sy ryin4 in3 in in4 in3 in

1 W36x300 1.31 20,300 1,110 15.20 1,300 156.0 3.832 W36x230 1.73 15,000 837 14.90 940 114.0 3.733 W36x256 1.77 16,800 895 14.90 528 86.5 2.654 W36x135 3.77 7,800 439 14.00 225 37.7 2.3856 W33x291 1.27 17,700 1,010 14.40 1,160 146.0 3.697 W33x201 1.86 11,500 684 14.00 749 95.2 3.568 W33x152 2.74 8,160 487 13.50 273 47.2 2.479 W33x118 3.87 5,900 359 13.00 187 32.6 2.32

1011 W30x261 1.26 13,100 827 13.10 959 127.0 3.5412 W30x173 1.91 8,200 539 12.70 598 79.8 3.4313 W30x132 2.87 5,770 380 12.20 196 37.2 2.2514 W30x124 3.09 5,360 355 12.10 181 34.4 2.2315 W30x116 3.36 4,930 329 12.00 164 31.3 2.1916 W30x108 3.75 4,470 299 11.90 146 27.9 2.1517 W30x99 4.23 3,990 269 11.70 128 24.5 2.1018 W30x90 4.65 3,620 245 11.70 115 22.1 2.091920 W27x258 1.15 10,800 742 11.90 859 120.0 3.3721 W27x235 1.25 9,660 674 11.80 768 108.0 3.3322 W27x217 1.34 8,870 624 11.80 704 99.8 3.3223 W27x194 1.49 7,820 556 11.70 618 88.1 3.2924 W27x178 1.66 6,990 502 11.60 555 78.8 3.2625 W27x161 1.82 6,280 455.0 11.50 497 70.9 3.2426 W27x146 2.01 5,630 411.0 11.40 443 63.5 3.2127 W27x129 2.51 4,760 345.0 11.20 184 36.8 2.2128 W27x114 2.91 4,090 299.0 11.00 159 31.5 2.1829 W27x102 3.26 3,620 267.0 11.00 139 27.8 2.1530 W27x94 3.62 3,270 243.0 10.90 124 24.8 2.1231 W27x84 4.19 2,850 213.0 10.70 106 21.2 2.073233 W24X176 1.46 5,680 450.0 10.50 479 74.3 3.0434 W24X162 1.58 5,170 414.0 10.40 443 68.4 0.0535 W24X146 1.76 4,580 371.0 10.30 391 60.5 3.0136 W24X131 1.98 4,020 329.0 10.20 340 53.0 2.9737 W24X117 2.23 3,540 291.0 10.10 297 46.5 2.9438 W24X104 2.52 3,100 258.0 10.10 259 40.7 2.913940 W24X103 2.78 3,000 245.0 9.96 119 26.5 1.9941 W24X94 3.06 2,700 222.0 9.87 109 24.0 1.9842 W24X84 3.47 2,370 196.0 9.79 94 20.9 1.9543 W24X76 3.91 2,100 176.0 9.69 83 18.4 1.9244 W24X68 4.52 1,830 154.0 9.55 70 15.7 1.874546 W24X62 5.72 1,550 131.0 9.23 35 9.8 1.3847 W24X55 6.66 1,350 114.0 9.11 29 8.3 1.344849 W21X166 1.33 4,280 380.0 9.36 435 70.1 2.9850 W21X147 1.53 3,630 329.0 9.17 376 60.1 2.9551 W21X132 1.70 3,220 295.0 9.12 333 53.5 2.93

52 W21X122 1.82 2,960 276.0 9.09 305 49.2 2.9253 W21X111 1.99 2,670 249.0 9.05 274 44.5 2.9054 W21X101 2.17 2,420 227.0 9.02 248 40.3 2.895556 W21X93 2.76 2,070 192.0 8.70 93 22.1 1.8457 W21X83 3.07 1,830 171.0 8.67 81 19.5 1.8358 W21X73 3.46 1,600 151.0 8.64 71 17.0 1.8159 W21X68 3.73 1,480 140.0 8.60 65 15.7 1.8060 W21X62 4.14 1,330 127.0 8.54 58 13.9 1.776162 W21X57 4.94 1,170 111.0 8.36 31 9.4 1.3563 W21X50 5.96 984 94.5 8.18 25 7.6 1.3064 W21X44 7.06 843 81.6 8.06 21 6.4 1.266566 W18X143 1.32 2,750 282.0 8.09 311 55.5 2.7267 W18X130 1.44 2,460 256.0 8.03 278 49.9 2.706869 W18X119 1.59 2,190 231.0 7.90 253 44.9 2.6970 W18X106 1.78 1,910 204.0 7.84 220 39.4 2.6671 W18X97 1.92 1,750 188.0 7.82 201 36.1 2.6572 W18X86 2.15 1,530 166.0 7.77 172 31.6 2.6373 W18X76 2.43 1,330 146.0 7.73 152 27.6 2.617475 W18X71 2.99 1,170 127.0 7.50 60 15.8 1.7076 W18X65 3.22 1,070 117.0 7.49 55 14.4 1.6977 W18X60 3.47 984 108.0 7.47 50 13.3 1.6978 W18X55 3.82 890 98.3 7.41 45 11.9 1.6779 W18X50 4.21 800 88.9 7.38 40 10.7 1.658081 W18X46 4.93 712 78.8 7.25 23 7.4 1.2982 W18X40 5.67 612 68.4 7.21 19 6.4 1.2783 W18X35 6.94 510 57.6 7.04 15 5.1 1.228485 W16X100 1.65 1,490 175.0 7.10 186 35.7 2.5186 W16X89 1.85 1,300 155.0 7.05 163 31.4 2.4987 W16X77 2.11 1,110 134.0 7.00 138 26.9 2.4788 W16X67 2.40 954 117.0 6.96 119 23.2 2.468990 W16X57 3.23 758 92.2 6.72 43 12.1 1.6091 W16X50 3.65 659 81.0 6.68 37 10.5 1.5992 W16X45 4.06 586 72.7 6.65 33 9.3 1.5793 W16X40 4.53 518 64.7 6.63 29 8.3 1.5794 W16X36 5.28 448 56.5 6.51 25 7.0 1.529596 W16X31 6.53 375 47.2 6.41 12 4.5 1.1797 W16X26 8.27 301 38.4 6.26 10 3.5 1.129899 W14X730 0.25 14,300 1,280.0 8.17 4,720 527.0 4.69

100 W14X665 0.27 12,400 1,150.0 7.98 4,170 472.0 4.62101 W14X605 0.29 10,800 1,040.0 7.80 3,680 423.0 4.55102 W14X550 0.31 9,430 931.0 7.63 3,250 378.0 4.49103 W14X500 0.33 8,210 838.0 7.48 2,880 339.0 4.43104 W14X455 0.35 7,190 756.0 7.33 2,560 304.0 4.38105

106 W14X426 0.37 6,600 707.0 7.26 2,360 283.0 4.34107 W14X398 0.39 6,000 656.0 7.16 2,170 262.0 4.31108 W14X370 0.41 5,440 607.0 7.07 1,990 241.0 4.27109 W14X342 0.43 4,900 559.0 6.98 1,810 221.0 4.24110 W14X311 0.47 4,330 506.0 6.88 1,610 199.0 4.20111 W14X283 0.50 3,840 459.0 6.79 1,440 179.0 4.17112 W14X257 0.54 3,400 415.0 6.71 1,290 161.0 4.13113 W14X233 0.59 3,010 375.0 6.63 1,150 145.0 4.10114 W14X211 0.64 2,660 338.0 6.55 1,030 130.0 4.07115 W14X193 0.68 2,400 310.0 6.50 931 119.0 4.05116 W14x176 0.74 2,140 281.0 6.43 838 107.0 4.02117 W14X159 0.81 1,900 254.0 6.38 748 96.2 4.00118 W14X145 0.88 1,710 232.0 6.33 677 87.3 3.98119120 W14X132 0.97 1,530 209.0 6.28 548 74.5 3.76121 W14X120 1.05 1,380 190.0 6.24 495 67.5 3.74122 W14X109 1.14 1,240 173.0 6.22 447 61.2 3.73123 W14X99 1.25 1,110 157.0 6.17 402 55.2 3.71124 W14X90 1.36 999 143.0 6.14 362 49.9 3.70125126 W14X82 1.65 882 123.0 6.05 148 29.3 2.48127 W14X74 1.79 796 112.0 6.04 134 26.6 2.48128 W14X68 1.94 723 103.0 6.01 121 24.2 2.46129 W14X61 2.15 640 92.2 5.98 107 21.5 2.45130131 W14X53 2.62 541 77.8 5.89 58 14.3 1.92132 W14X48 2.89 485 70.3 5.85 51 12.8 1.91133 W14X43 3.22 428 62.7 5.82 45 11.3 1.89134135 W14X38 4.04 385 54.6 5.87 27 7.9 1.55136 W14X34 4.56 340 48.6 5.83 23 6.9 1.53137 W14X30 5.34 291 42.0 5.73 20 5.8 1.49138139 W14X26 6.59 245 35.3 5.65 9 3.5 1.08140 W14X22 8.20 199 29.0 5.54 7 2.8 1.04141142 W12X190 0.65 1,890 263.0 5.82 589 93.0 3.25143 W12X170 0.72 1,650 235.0 5.74 517 82.3 3.22144 W12X152 0.79 1,430 209.0 5.66 454 72.8 3.19145 W12X136 0.87 1,240 186.0 5.58 398 64.2 3.16146 W12X120 0.95 1,070 163.0 5.51 345 56.0 3.13147 W12X106 1.07 933 145.0 5.47 301 49.3 3.11148 W12X96 1.16 833 131.0 5.44 270 44.4 3.09149 W12X87 1.28 740 118.0 5.38 241 39.7 3.07150 W12X79 1.39 662 107.0 5.34 216 35.8 3.05151 W12X72 1.52 597 97.4 5.31 195 32.4 3.04152 W12X65 1.67 533 87.9 5.28 174 29.1 3.02153154 W12x58 1.90 475 78.0 5.28 107 21.4 2.51155 W12X53 2.10 425 70.6 5.23 96 19.2 2.48156157 W12X50 2.36 394 64.7 5.18 56 13.9 1.96158 W12X45 2.61 350 58.1 5.15 50 12.4 1.94159 W12X40 2.90 310 51.9 5.13 44 11.0 1.93

160161 W12X35 3.66 285 45.6 5.25 25 7.5 1.54162 W12X30 4.30 238 38.6 5.21 20 6.2 1.52163 W12X26 4.95 204 33.4 5.17 17 5.3 1.51164165 W12X22 7.19 156 25.4 4.91 5 2.3 0.85166 W12X19 8.67 130 21.3 4.82 4 1.9 0.82167 W12X16 11.30 103 17.1 4.67 3 1.4 0.77168 W12X14 13.30 89 14.9 4.62 2 1.2 0.75169170 W10X112 0.87 716 126.0 4.66 236 45.3 2.68171 W10X100 0.96 623 112.0 4.60 207 40.0 2.65172 W10X88 1.07 534 98.5 4.54 179 34.8 2.63173 W10X77 1.20 455 85.9 4.49 154 30.1 2.60174 W10X68 1.33 394 75.7 4.44 134 26.4 2.59175 W10X60 1.49 341 66.7 4.39 116 23.0 2.57176 W10X54 1.64 303 60.0 4.37 103 20.6 2.56177 W10X49 1.78 272 54.6 4.35 93 18.7 2.54178179 W10X45 2.03 248 49.1 4.32 53 13.3 2.01180 W10X39 2.34 209 42.1 4.27 45 11.3 1.98181 W10X33 2.81 170 35.0 4.19 37 9.2 1.94182183 W10X30 3.53 170 32.4 4.38 17 5.8 1.37184 W10X26 4.07 144 27.9 4.35 14 4.9 1.36185 W10X22 4.91 118 23.2 4.27 11 4.0 1.33186187 W10X19 6.45 96 18.8 4.14 4 2.1 0.87188 W10X17 7.64 82 16.2 4.05 4 1.8 0.84189 W10X15 9.25 69 13.8 3.95 3 1.5 0.81190 W10X12 11.90 54 10.9 3.90 2 1.1 0.79191192 W8X67 1.16 272 60.4 3.72 89 21.4 2.12193 W8X58 1.31 228 52.0 3.65 75 18.3 2.10194 W8x48 1.53 184 43.3 3.61 61 15.0 2.08195 W8x40 1.83 146 35.5 3.53 49 12.2 2.04196 W8x35 2.05 127 31.2 3.51 43 10.6 2.03197 W8x31 2.30 110 27.5 3.47 37 9.3 2.02198199 W8x28 2.65 98 24.3 3.45 22 6.6 1.62200 W8x24 3.05 83 20.9 3.42 18 5.6 1.61201202 W8X21 3.93 75 18.2 3.49 10 3.7 1.26203 W8X18 4.70 62 15.2 3.43 8 3.0 1.23204205 W8X15 6.41 48 11.8 3.29 3 1.7 0.88206 W8X13 7.83 40 9.9 3.21 3 1.4 0.84207 W8X10 9.77 31 7.8 3.22 2 1.1 0.84208209 W6X25 2.31 53 16.7 2.70 17 5.6 1.52210 W6X20 2.82 41 13.4 2.66 13 4.4 1.50211 W6X15 3.85 29 9.7 2.56 9 3.1 1.46212213 W6X16 3.85 32 10.2 2.60 4 2.2 0.97

214 W6X12 5.38 22 7.3 2.49 3 1.5 0.92215 W6X9 6.96 16 5.6 2.47 2 1.1 0.91216217 H294X200 0.12 271 47.0 0.49 38 9.8 0.19218 H250X255 0.07 276 56.1 0.41 93 18.6 0.24219 H300X300 0.07 490 83.0 0.52 162 27.5 0.30220