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JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

DESIGN OF CRANE BEAM DESIGN A SIMPLY SUPPORTED BEAM TO CARRY AN ELECTRIC OVERHEAD CRANE. THE DESIGN DATA ARE AS FOLLOWS CRANE CAPACITY = SPAN BETWEEN CRANE RAILS = WEIGHT OF CRANE = WEIGHT OF CRAB = MINIMUM HOOK APPROACH = END CARRIAGE WHEELCENTRES = SPAN OFCRANE GIRDER = SELF WEIGHT OF CRANE GIRDER = GRADE OF STEEL = MODULUS OF ELASTICITY OF STEEL Es = SIZE OF WELD = TYPE OF CRANE RAIL = DIAMETER OD CRANE WHEEL =

30 18 30 10 0.5 2.5 15 25 S275

KN M KN KN M M M KN

250

N/mm2

205000 6

N/mm2 mm

200

2520

mm

(1) MAXIMUM WHEEL LOADS, MOMENTS AND SHEAR THE CRANE LOADS ARE SHOWN IN FIG.(a). THE MAXI. STATIC WHEEL LOADS @ A; = 30/4+((30+10)x17.5)/18x2 =

26.95

KN

THE VERTICAL WHEEL LOAD, INCLUDING IMPACT (THE MAXI.STATIC WHEEL LOADS SHALL BE INCREASED BY 25% FOR E.O.C.) =

1.25 x26.95

=

33.69

KN

THE HORI. SURGE LOAD TRANSMITTED BY FRICTION TO THE RAILTHROUGH FOUR WHEELS: (THE HORI. FORCE ACTING TRANSVERSE TO THE RAILS SHALL BE TAKEN AS 10% OF THE COMBINED WT. OF THE CRAB AND THE LOAD LIFTED) = 10%(30+10)/4 =

1

KN

LOAD FACTORS: (REFER BS5950-2000; TABLE 2 PARTIALFACTORS FOR LOADS) DEAD LOAD - SELF WEIGHT ϒf

=

1.4

VERT.& HORI. CRANE LOADS CONSIDERED SEPERATELY ϒf

=

1.6

VERT.& HORI. CRANE LOADS ACTING TOGETHER ϒf

=

1.4

THE CRANE LOADS IN A POSITION TO GIVE MAXI. VERT & HORI MOMENTS & MAXI VERT SHEAR.FIG.(b)

Page 1 of 95

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

10 KN A

B

26.95 kN/wheel

30 0.5

17.5 18 CRANE GIRDER CENTRES FIG.( a ) CRANE LOADS 33.69

33.69

CG Loads

C SELF WT.= 25 A

B 0.63 5.63

0.63 2.5

6.88 15

FIG.(b) VERTICAL LOADS - MAXIMUM MOMENT

1

1

A

C

B

FIG.(c) HORIZONTAL LOADS - MAXIMUM MOMENTS 33.69

33.69 SELF WT.= 25

A

B 2.5

12.5

FIG.(d) LOADS CAUSING MAXI. VERTICAL SHEAR

Page 2 of 95

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

THE MAXI VERT MOMENTS DUE TO DEAD LOAD & CRANE LOADS ARE CALCULATED SEPERATELY: DEAD LOAD; RB =

25 kN / 2

RB =

12.5

Mc = Mc =

KN

(12.5 x 6.875) - (25 x 6.875 x 6.875 / (15 x 2)) 46.55

KN m.

CRANE LOAD,INCLUDING IMPACT RB =

33.69(5.625 + 0.625 + 2.5) / 15

RB =

30.89

Mc =

30.89 x 6.875

Mc =

212.37

KN

KN m.

CRANE LOAD WITH NO IMPACT Mc = Mc =

212.37 x 26.95 / 33.69 169.89

KN m.

THE MAXI HORI MOMENT DUE TO CRANE SURGE; RB =

1(5.625 + 5.625 + 2.5) / 15

RB =

0.92

Mc =

0.92 x 6.875

Mc =

6.33

KN

KN m.

THE MAXI VERTICAL SHEAR; DEAD LOAD RA =

12.5

KN

CRANE LOADS, INCLUDING IMPACT RA = RA =

33.69 + 33.69 x 12.5/15 61.77

KN

THE LOAD FACTORS ARE INTRODUCED TO CALCULATE THE DESIGN MOMENTS & SHEAR FOR THE VARIOUS LOAD COMBINATIONS: (1) VERTICAL CRANE LOADS WITH IMPACT & NO HORI. CRANE LOAD. MAXIMUM MOMENT Mc = (1.4 x 46.55) + (1.6 x 212.37) Mc =

404.97

KN m.

MAXIMUM SHEAR FA = (1.4 x 12.5) + (1.6 x 61.77) FA =

116.34

KN

(2) HORI. CRANE LOADS & VERT.CRANE LOADS WITH NO IMPACT. MAXIMUM HORIZONTAL MOMENT, Mc = 1.6 x 6.33 Mc =

10.13

KN m.

MAXIMUM VERTICAL MOMENT Mc = (1.4 x 46.55) + (1.6 x 169.89) Page 3 of 95

Mc =

JOB NO. CUSTOMER DESCRIPTION 337 KN m.

DATE DESIGNED BY CHECKED BY

Page 4 of 95

18-Jul-2011

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

(3) VERT. CRANE LOAD WITH IMPACT & HORI. CRANE LOADS ACTING TOGETHER.

MAXIMUM VERTICAL MOMENT Mc = (1.4 x 46.55) + (1.4 x 212.37) Mc =

362.49

KN m.

MAXIMUM HORIZONTAL MOMENT, Mc = 1.4 x 6.33 Mc =

8.87

KN m.

(2) BUCKLING RESISTANCE MOMENT FOR THE X-X AXIS: THE FOLLOWING TRIAL SECTION IS SELECTED: (REFERANCE: HANDBOOK OFSTRUCTURALSTEEL WORK 3rd edi.)

I-s/c CHANNEL

Girder ISMC 250 FIG.(1) CRANE BEAM

SECTIONAL PROPERTIES Girder

ISMC 250

95.2 760 180 10 8

38.66 250 80 14.7 7.1 381680

AX D Bf Tf Tw

cm2 mm mm mm mm

Ix

cm4

77642

Iy

cm4

975.16

21910

Zx

cm3

2445

2181.02

Zy Cy r

cm3 cm mm

173.84

384.38

X

X

10.2

REFERING TO FIG.(2), THE EQUAL AREA AXIS X-X & CENTROIDS OF THE TENSION & COMPRESSION AREAS ARE LOCATED AND THE PLASTIC MODULUS CALCULATED.

(1) LOCATE EQUAL AREA AXIS:

TOTAL AREA =

13438.26

FIG.(2) CRANE BEAM PLASTIC PROPERTIES

mm2

C.G. FOR COMPRESSION AREA FROM TOP; (y) 6719.13 =(250 x 7.1) + (180 x 10) + 2 x 14.7( y - 7.1) + 8( y - 10-7.1)

y=

93.31

mm from top

(2) LOCATE CENTROIDS OF COMPRESSION & TENSION AREAS

NO. 1

COMPRESSION AREA AREA MOMENTS @ TOP AREA y 1775 3.55

Ay 6301.25

TENSION AREA AREA MOMENTS @ BOTTOM NO. AREA y Ay 1 1800 5 9000

2

1800

12.1

21780

2

5310.32

341.9

1815571.86

3

2534.57

50.21

127248.29

3

-391.31

680.45

-266267.65

609.68 55.21 6719.26 (188986.93 / 6719.26)

33657.38 188987

SUM

4 SUM

ŷ= ŷ=

28.13

mm

ŷ= ŷ=

Page 5 of 95

6719.01 (1558304.21 / 6719.01)

231.93 mm

1558304

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

250

93.31

76.21 14.7

180

4

X

X

14.7 -13.31

7.1

1 2

10

X

X

663.79

86.21

3

18-Jul-2011

673.79

2

10

1

180

8

28.13 TENSION AREA

COMPRESSION AREA

(3) LEVER ARM, Z =

((760 + 7.1) - 28.13 - 231.93)

Z=

507.04

mm

(4) PLASTIC MODULUS, Sx ; Sx = Sx =

6719.26 x 507.04 3406933.6

mm3

THE BENDING STRENGTH, pb TAKING TORSIONAL BUCKLING INTO ACCOUNT, IS DETERMINED: EFFECTIVE LENGTH LE = SPAN = MINI. RADIUS OF GYRATION ry =

ry = SLENDERNESS RATIO, λ = LE / ry =

15000

mm

(SQRT( ( 975.16 + 381680) / (95.2 + 38.66) )

534.67 mm 28.06

FACTORS MODIFYING SLENDERNESS: BUCKLING PARAMETER, μ =

1.0

THIS IS CONSERVATIVE: THE VALUE OF 0.81 IS CALCULATED FROM THE FORMULA IN APPENDIX B (BS-5950-1-2000) OF THE CODE THE SLENDERNESS FACTOR ν IS CALCULATED FROM THE FORMULAE IN APPENDIA B: Icf = = Icf =

Ix (Channnel) + ½ Iy (UB) 381680 + 1/2 x975.16 382167.58 cm4

Itf =

½ Iy (UB)

Itf =

487.58

cm4

Iyc η = ffffffffffffffffffffffffff Iyc + Iyt η= η=

382167.58 / (382167.58 + 487.58) 1

Page 6 of 95

3 3

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

THE DISTANCE BETWEEN THE SHEAR CENTRES OF THE FLANGES: 7.86

767.1

hz =

754.24

b 200.3 5

250

1 2

17.1 AREA A AREA A = 3425.13 TK. OF TOP FLANGE T = A/b T= 13.71 D/T = 55.96

CRANE BEAM

DISTANCE TO CENTROID FROM TOP

NO. 1

AREA 1775

y 3.55

A.y 6301.25

2 SUM

1800 3575

12.1

21780 28081.25

CENTROIDAL DIST. FROM TOP =

7.86 mm

hs = DIST. FROM CENTRE OF BOTTOM FLANGE TO CENTROID OF CHANNEL WEB & UB FLANGE

hs =

754.24

mm (Appro.)

-----REFER ABOVE FIG.

TORSION CONSTANT (J) = 1/3[ ∑b.t3 + hw.tw3 ] J=

J= AREA (A); =

1/3 [ (10^ 3 x 180) + (8^3 x (760- 2 x 10)) + (17.1^3 x 200.3) + ( 2 x 14.7 x 80) ] 520924.76 13386

THE TORSIONALINDEX (x); x= x=

mm4

mm2 f

x =0.566hs

g 0.5

A fffff J

0.566 x 754.24(13386 / 520924.76)^ 0.5 68.43

THIS COMPARES WITH D/T = 55.96 FROM THE S/C TABLE THEMONOSYMMETRIC INDEX ψ FOR A T-SECTION WITH LIPPED FLANGES, WHERE DL = DEPTH OF THE LIP = D = OVERALL DEPTH =

f

80 767.1

mm mm

g

b c Dl ψ = 0.8 2η @1 1 + 0.5 ffffffff D

Page 7 of 95

JOB NO. CUSTOMER DESCRIPTION

ψ= ψ=

DATE DESIGNED BY CHECKED BY

18-Jul-2011

0.8 ( 2 x 1 - 1 )( 1 + 0.5 x 80/767.1) 0.84

THE SLENDERNESS FACTOR ν

1 fffffff ν =HffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffIffff0.5 h i 0.5 d e2 b c Lj M fffff L 4η 1 @η + 0.05 λ +ψ2k + ψM J K x

FOR

ν=

0.77

ν 0.77

η 1

λ/x 0.42

λ 28.06

REFERANCE BS5950-1-2000

βw =

w w w w w w w w w w w w w w

λlt = µνλ q βw

λlt =

21.61

Page 8 of 95

1

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

18-Jul-2011

FROM TABLE 17 BENDING STRENGTH pb (N/mm2) pg.52 FOR WELDED S/C FOR py = 265 N/mm2

TOP FLANGE THICKNESS = 17.1 mm TOTAL pb = THE BUCKLING RESISTANCE; Mb =

158.23

N/mm2

3406933.6 x 158.232

Mb =

539.09

KN M.

(3) MOMENT CAPACITY FOR THE TOP SECTION FOR THE y-y AXIS: Mcy =

265 x 30573280

Mcy =

8101.92

KN m

Zyy =

30573280

mm3

x 80

7.1 10

x= y=

125 76.16

mm mm

Ixx =

###

mm4

(4) CHECK BEAM BENDING: (1) VERTICAL MOMENT, NO HORI. MOMENT

Mx =

404.97

< Mb =

539.09

KN M.

Iyy =

3821660000 mm4

Zxx = Zyy =

2879396.23 mm3 30573280 mm3

(2) VERTICAL MOMENT NO IMPACT + HORIZONTAL MOMENT

Mx ffffffffff fffMy fffffffffffffff + = Mb py Zy

(337 / 539.09 + 10.13 / 8101.92) 0.63




1.98

Mpa.

HOWEVER, THE FOLLOWING POINTS HAVE TO BE BORNE IN MIND. 1. THE NUMBER OF STRESS CYCLES WILL NOT ALWAYS BE EQUAL TO THE NUMBER OF LOAD CYCLES. FOR EXAMPLE, IN A CONTINUOUS BEAM OR WHEN A MULTIPLE-AXLE VEHICLE TRANSVERSES A MEMBER, MORE THAN ONE STRESS CYCLE COULD OCCUR. 2. SINCE THE STRESS DUE TO THE DEAD LOAD IS ALWAYS PRESENT, THE CHANGE IN STRESS IN THE MEMBER COULD BE TAKEN EQUAL TO THE CHANGE IN STRESS PRODUCED BY THE MOVING (LIVE) LOAD. 3. OF COURSE, WE CAN ALSO COMPARE THE NUMBER OF CYCLES PERMITTED AT THE ACTUAL STRESS RANGE OF 36.81 Mpa FROM TABLE; log C FOR CATEGORY 118 AND N< 5 x 10^5 =

12.25

NUMERICAL VALUES FOR FATIGUE STRENGTH CURVES

log C for N < 108 NORMAL STRESS RANGE

ffn (N/mm2) 160 140 125 112 100 90 80 71 63 56 50 45 40 36

N ≤ 5 x 106 (m = 3) 12.9 12.75 12.6 12.45 12.3 12.15 12 11.85 11.7 11.55 11.4 11.25 11.1 10.95

N ≥ 5 x 106 (m = 5) 17.04 16.79 16.54 16.29 16.04 15.79 15.54 15.29 15.04 14.79 14.54 14.29 14.04 13.79

fd (N/mm2)

fL (N/mm2)

118 103 92 83 74 66 59 52 46 41 37 33 29 27

64 57 51 45 40 36 32 29 26 23 20 18 16 14

Page 15 of 95

JOB NO. CUSTOMER DESCRIPTION FROM EQUATION

log N = log c @m log f log N = log N =

HENCE;

DATE DESIGNED BY CHECKED BY

N=

f

12.25 - 3 x log 36.81 7.56 36307806 cycles

SINCE THE ACTUAL NUMBER OF CYCLES IS ONLY 240000, THIS ALSO SHOWS THAT THE SIZE OF THE GIRDER IS SUFFICIENT.

Page 16 of 95

18-Jul-2011

JOB NO. CUSTOMER DESCRIPTION

REFERANCES:

DATE DESIGNED BY CHECKED BY

18-Jul-2011

BS 5950-1:2000 STRUCTURAL USE OF STEELWORK IN BUILDING IS 800:2007 CODE OF PRACTICE FOR GENERAL CONSTRUCTION IN STEEL (3rd REV.) STRUCTURAL STEELWORK:DESIGN TO LIMIT STATE THEORY BY DENNIS LAM, THIEN-CHEONG ANG - 3RD ED DESIGN OF STEEL STRUCTURES (L.S.M) BY N.SUBRAMANIAN

REFERANCE IS800-2007

Page 17 of 95

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

Page 18 of 95

18-Jul-2011

JOB NO. CUSTOMER DESCRIPTION

DATE DESIGNED BY CHECKED BY

Page 19 of 95

18-Jul-2011

NAME

STAADNAME

UB127X76X13 UB127X76X13 UB152X89X16 UB152X89X16 UB178X102X19 UB178X102X19 UB254X102X22 UB254X102X22 UB203X102X23 UB203X102X23 UB305X102X25 UB305X102X25 UB203X133X25 UB203X133X25 UB254X102X25 UB254X102X25 UB305X102X28 UB305X102X28 UB254X102X28 UB254X102X28 UB203X133X30 UB203X133X30 UB254X146X31 UB254X146X31 UB305X102X33 UB305X102X33 UB356X127X33 UB356X127X33 UB254X146X37 UB254X146X37 UB305X127X37 UB305X127X37 UB406X140X39 UB406X140X39 UB356X127X39 UB356X127X39 UB305X165X40 UB305X165X40 UB305X127X42 UB305X127X42 UB254X146X43 UB254X146X43 UB356X171X45 UB356X171X45 UB406X140X46 UB406X140X46 UB305X165X46 UB305X165X46 UB305X127X48 UB305X127X48 UB356X171X51 UB356X171X51 UB457X152X52 UB457X152X52 UB305X165X54 UB305X165X54 UB406X178X54 UB406X178X54 UB356X171X57 UB356X171X57 UB457X152X60 UB457X152X60 UB406X178X60 UB406X178X60 UB356X171X67 UB356X171X67 UB406X178X67 UB406X178X67 UB457X191X67 UB457X191X67 UB457X152X67 UB457X152X67 UB406X178X74 UB406X178X74 UB457X152X74 UB457X152X74 UB457X191X74 UB457X191X74 UB457X191X82 UB457X191X82 UB457X152X82 UB457X152X82 UB533X210X82 UB533X210X82 UB457X191X89 UB457X191X89 UB533X210X92 UB533X210X92 UB457X191X98 UB457X191X98 UB533X210X101 UB533X210X101 UB610X229X101 UB610X229X101 UB533X210X109 UB533X210X109

AX cm^2 16.5 20.3 24.3 28 29.4 31.6 32 32 35.9 36.1 38.2 39.7 41.8 42.1 47.2 47.2 49.7 49.8 51.3 53.4 54.8 57.3 58.6 58.7 61.2 64.9 66.6 68.8 69 72.6 76.2 76.5 85.5 85.5 85.5 85.6 94.5 94.5 94.6 104 105 105 114 117 125 129 129 139

D mm 127 152.4 177.8 254 203.2 305.1 203.2 257.2 308.7 260.4 206.8 251.4 312.7 349 256 304.4 398 353.4 303.4 307.2 259.6 351.4 403.2 306.6 311 355 449.8 310.4 402.6 358 454.6 406.4 363.4 409.4 453.4 458 412.8 462 457 460 465.8 528.3 463.4 533.1 467.2 536.7 602.6 539.5

Bf mm 76 88.7 101.2 101.6 101.8 101.6 133.2 101.9 101.8 102.2 133.9 146.1 102.4 125.4 146.4 123.4 141.8 126 165 124.3 147.3 171.1 142.2 165.7 125.3 171.5 152.4 166.9 177.7 172.2 152.9 177.9 173.2 178.8 189.9 153.8 179.5 154.4 190.4 191.3 155.3 208.8 191.9 209.3 192.8 210 227.6 210.8

Tf mm 7.6 7.7 7.9 6.8 9.3 7 7.8 8.4 8.8 10 9.6 8.6 10.8 8.5 10.9 10.7 8.6 10.7 10.2 12.1 12.7 9.7 11.2 11.8 14 11.5 10.9 13.7 10.9 13 13.3 12.8 15.7 14.3 12.7 15 16 17 14.5 16 18.9 13.2 17.7 15.6 19.6 17.4 14.8 18.8

Tw mm 4 4.5 4.8 5.7 5.4 5.8 5.7 6 6 6.3 6.4 6 6.6 6 6.3 7.1 6.4 6.6 6 8 7.2 7 6.8 6.7 9 7.4 7.6 7.9 7.7 8.1 8.1 7.9 9.1 8.8 8.5 9 9.5 9.6 9 9.9 10.5 9.6 10.5 10.1 11.4 10.8 10.5 11.6

Ix cm^4 473 834 1356 2841 2105 4455 2340 3415 5366 4005 2896 4413 6501 8249 5537 7171 12510 10170 8503 8196 6544 12070 15690 9899 9575 14140 21370 11700 18720 16040 25500 21600 19460 24330 29380 28930 27310 32670 33320 37050 36590 47540 41020 55230 45730 61520 75780 66820

UB610X229X113 UB533X210X122 UB610X229X125 UB686X254X125 UB762X267X134 UB610X229X140 UB686X254X140 UB762X267X147 UB610X305X149 UB686X254X152 UB686X254X170 UB762X267X173 UB838X292X176 UB610X305X179 UB838X292X194 UB762X267X197 UB914X305X201 UB1016X305X222 UBM16X305X222 UB914X305X224 UB838X292X226 UB610X305X238 UB1016X305X249 UBM16X305X249 UB914X305X253 UB1016X305X272 UBM16X305X272 UB914X305X289 UB1016X305X314 UBM16X305X314 UB914X419X343 UB1016X305X349 UBM16X305X349 UB914X419X388 UB1016X305X393 UBM16X305X393 UB1016X305X437 UBM16X305X437 UB1016X305X487 Girder

UB610X229X113 UB533X210X122 UB610X229X125 UB686X254X125 UB762X267X134 UB610X229X140 UB686X254X140 UB762X267X147 UB610X305X149 UB686X254X152 UB686X254X170 UB762X267X173 UB838X292X176 UB610X305X179 UB838X292X194 UB762X267X197 UB914X305X201 UB1016X305X222 UBM16X305X222 UB914X305X224 UB838X292X226 UB610X305X238 UB1016X305X249 UBM16X305X249 UB914X305X253 UB1016X305X272 UBM16X305X272 UB914X305X289 UB1016X305X314 UBM16X305X314 UB914X419X343 UB1016X305X349 UBM16X305X349 UB914X419X388 UB1016X305X393 UBM16X305X393 UB1016X305X437 UBM16X305X437 UB1016X305X487 760x180

UBM16X305X349

144 155 159 159 171 178 178 187 190 194 217 220 224 228 247 251 256 283 283 286 289 303 317 317 323 347 347 368 400 400 437 445 445 494 500 500 557 557 620 95.2

607.6 544.5 612.2 677.9 750 617.2 683.5 754 612.4 687.5 692.9 762.2 834.9 620.2 840.7 769.8 903 970.3 970.3 910.4 850.9 635.8 980.2 980.2 918.4 990.1 990.1 926.6 1000 1000 911.8 1008.1 1008.1 921 1016 1016 1025.9 1025.9 1036.1 760

228.2 211.9 229 253 264.4 230.2 253.7 265.2 304.8 254.5 255.8 266.7 291.7 307.1 292.4 268 303.3 300 300 304.1 293.8 311.4 300 300 305.5 300 300 307.7 300 300 418.5 302 302 420.5 303 303 305.4 305.4 308.5 180

1.74E+05

173.84

17.3 21.3 19.6 16.2 15.5 22.1 19 17.5 19.7 21 23.7 21.6 18.8 23.6 21.7 25.4 20.2 21.1 21.1 23.9 26.8 31.4 26 26 27.9 31 31 32 35.9 35.9 32 40 40 36.6 43.9 43.9 49 49 54.1 10

11.1 12.7 11.9 11.7 12 13.1 12.4 12.8 11.8 13.2 14.5 14.3 14 14.1 14.7 15.6 15.1 16 16 15.9 16.1 18.4 16.5 16.5 17.3 16.5 16.5 19.5 19.1 19.1 19.4 21.1 21.1 21.4 24.4 24.4 26.9 26.9 30 8

87320 76040 98610 118000 150700 111800 136300 168500 125900 150400 170300 205300 246000 153000 279200 240000 325300 408000 408000 376400 339700 209500 481300 481300 436300 554000 554000 504200 644200 644200 625800 723100 723100 719600 807700 807700 909900 909900 1021400 77642

De mm 96.6 121.8 146.8 225.2 169.4 275.9 172.4 225.2 275.9 225.2 172.4 219 275.9 311.6 219 265.2 360.4 311.6 265.2 265.2 219 311.6 360.4 265.2 265.2 311.6 407.6 265.2 360.4 311.6 407.6 360.4 311.6 360.4 407.6 407.6 360.4 407.6 407.6 407.6 407.6 476.5 407.6 476.5 407.6 476.5 547.6 476.5

Ct cm 1.3 1.6 1.8 3.5 2.2 4.4 2.1 3.3 4.2 3.2 2.1 2.7 4.1 4.6 2.6 3.8 5.3 4.4 3 3.9 2.6 4.1 5 3.1 3.9 3.9 6 3.2 4.8 4 5.8 4.6 4 4.7 5.5 5.9 4.8 5.9 5.4 5.5 6 6.8 5.5 6.6 5.5 6.5 7.8 6.6

Iy cm^4 56 90 137 119 164 123 308 149 155 179 385 448 194 280 571 336 410 358 764 389 677 811 538 896 461 968 645 1063 1021 1108 795 1203 1362 1365 1452 913 1545 1047 1671 1871 1185 2007 2089 2389 2347 2692 2915 2943

plastic modulus Zx Zy cm^3 cm^3 84 23 123 31 171 42 259 37 234 50 342 39 258 71 306 46 403 49 353 55 314 88 393 94 481 60 543 70 483 119 539 85 724 91 659 89 623 142 614 98 566 141 775 147 888 118 720 166 711 116 896 174 1096 133 846 196 1055 178 1010 199 1287 163 1199 209 1211 243 1346 237 1471 237 1453 187 1501 267 1627 213 1653 272 1831 304 1811 240 2059 300 2014 338 2360 356 2232 379 2612 399 2881 400 2828 436

NBF mm 76 89 102 102 102 102 133 102 102 102 133 146 102 127 146 127 140 127 165 127 146 171 140 165 127 171 152 165 178 171 152 178 171 178 191 152 178 152 191 191 152 210 191 210 191 210 229 210

547.6 476.5 547.6 615.1 686 547.6 615.1 686 540 615.1 615.1 686 761.7 540 761.7 686 824.4 868.1 868.1 824.4 761.7 540 868.2 868.2 824.4 868.1 868.1 824.4 868.2 868.2 799.6 868.1 868.1 799.6 868.2 868.2 867.9 867.9 867.9

7.6 6.7 7.5 8.9 10.3 7.6 8.6 10.2 6.5 8.6 8.7 10 11.4 6.7 11.1 9.9 12.5 13.8 13.8 12.1 10.8 7.1 13.2 13.2 12 12.5 12.5 12.2 12.9 12.9 10.2 13.1 13.1 10.3 13.8 13.8 14 14 14.4

3434 3388 3932 4383 4788 4505 5183 5455 9308 5784 6630 6850 7799 11410 9066 8175 9423 9546 9546 11240 11360 15840 11750 11750 13300 14000 14000 15600 16230 16230 39160 18460 18460 45440 20500 20500 23450 23450 26720 975.16

3281 3196 3676 3994 4644 4142 4558 5156 4594 5000 5631 6198 6808 5547 7640 7167 8351 9807 9807 9535 9155 7486 11350 11350 10940 12830 12830 12570 14850 14850 15480 16590 16590 17670 18540 18540 20760 20760 23200 2445

469 500 535 542 570 611 638 647 937 710 811 807 842 1144 974 959 982 1020 1020 1163 1212 1574 1245 1245 1371 1470 1470 1601 1713 1713 2890 1941 1941 3341 2168 2168 2469 2469 2800 173.84

229 210 229 254 267 229 254 267 305 254 254 267 292 305 292 267 305 305 305 305 292 305 305 305 305 305 305 305 305 305 419 305 305 419 305 305 305 305 305

NAME

STAADNAME

CH76X38 CH100X50X10 CH102X51 CH125X65X15 CH127X64 CH152X76 CH150X75X18 CH180X75X20 CH178X76 CH200X75X23 CH203X76 CH152X89 CH150X90X24 CH230X75X26 CH180X90X26 CH229X76 CH178X89 CH260X75X28 CH254X76 CH200X90X30 CH203X89 CH230X90X32 CH229X89 CH260X90X35 CH254X89 CH300X90X41 CH305X89 CH300X100X46 CH305X102 CH380X100X54 CH381X102 CH430X100X64 ISMC 250

CH76X38 CH100X50X10 CH102X51 CH125X65X15 CH127X64 CH152X76 CH150X75X18 CH180X75X20 CH178X76 CH200X75X23 CH203X76 CH152X89 CH150X90X24 CH230X75X26 CH180X90X26 CH229X76 CH178X89 CH260X75X28 CH254X76 CH200X90X30 CH203X89 CH230X90X32 CH229X89 CH260X90X35 CH254X89 CH300X90X41 CH305X89 CH300X100X46 CH305X102 CH380X100X54 CH381X102 CH430X100X64 250x125

AX cm^2 8.53 13 13.28 18.8 19 22.8 22.8 25.9 26.6 29.9 30.4 30.4 30.4 32.7 33.2 33.2 34.1 35.1 35.9 37.9 37.9 41 41.6 44.4 45.4 52.7 53.3 58 58.9 68.7 70.1 82.1 38.66

D mm 76.2 100 101.6 125 127 152.4 150 180 177.8 200 203.2 152.4 150 230 180 228.6 177.8 260 254 200 203.2 230 228.6 260 254 300 304.8 300 304.8 380 381 430 250

Bf mm 38.1 50 50.8 65 63.5 76.2 75 75 76.2 75 76.2 88.9 90 75 90 76.2 88.9 75 76.2 90 88.9 90 88.9 90 88.9 90 88.9 100 101.6 100 101.6 100 80

Tf mm 6.8 8.5 7.6 9.5 9.2 9 10 10.5 10.3 12.5 11.2 11.6 12 12.5 12.5 11.2 12.3 12 10.9 14 12.9 14 13.3 14 13.6 15.5 13.7 16.5 14.8 17.5 16.3 19 14.7

Tw mm 5.1 5 6.1 5.5 6.4 6.4 5.5 6 6.6 6 7.1 7.1 6.5 6.5 6.5 7.6 7.6 7 8.1 7 8.1 7.5 8.6 8 9.1 9 10.2 9 10.2 9.5 10.4 11 7.1

Ix cm^4 74.1 208 207.7 483 482 852 861 1370 1338 1963 1955 1168 1162 2748 1817 2615 1753 3619 3355 2523 2492 3518 3383 4728 4445 7218 7078 8229 8208 15030 14870 21940 381680

Iy cm^4 10.7 32.3 29.1 80 67.2 114 131 146 134 170 152 216 253 181 277 159 241 185 162 314 265 334 285 353 302 404 326 568 499 643 579 722 21910

Cy cm 1.2 1.7 1.5 2.3 1.9 2.2 2.6 2.4 2.2 2.5 2.1 2.9 3.3 2.3 3.2 2 2.8 2.1 1.9 3.1 2.7 2.9 2.5 2.7 2.4 2.6 2.2 3.1 2.7 2.8 2.5 2.6

De mm 45.8 65 65.7 82 84 105.9 106 135 128.8 151 152.5 97 102 181 131 178 121 212 203.8 148 145.2 178 169.8 208 194.7 245 245.4 237 239.2 315 312.4 362

plastic modulus Zx Zy cm^3 cm^3 23.4 7.8 48.9 17.5 48.8 15.7 89.9 33.2 89.4 29.3 130 41.2 132 47.2 176 51.8 176 48.1 227 60.6 226 53.5 178 68.3 179 76.9 278 63.2 232 83.5 271 54.5 230 75.4 328 62 316 53.9 291 94.5 287 81.7 355 98.9 348 86.3 425 102 414 89.6 568 114 559 92.9 641 148 638 128 933 161 931 144 1222 176 2181.02 384.38

Table 17 — Bending strength pb (N/mm2) for welded sections (BS 5950-1:2000)

Steel grade and design strength py (N/mm2)

λlt 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 210 220 230 240 250 L0

235 235 235 235 224 206 190 175 162 150 139 130 126 122 118 114 110 106 101 96 90 85 80 75 71 67 64 60 57 54 52 49 47 45 43 41 39 36 33 31 28 26 37.1

245 245 245 245 231 212 196 180 167 154 142 135 131 127 123 118 113 109 104 97 91 86 81 76 72 68 64 61 58 55 52 50 47 45 43 41 39 36 33 31 29 27 36.3

S 275 255 255 255 255 237 218 201 185 171 158 146 140 136 131 127 122 117 112 106 99 93 87 82 77 73 69 65 62 59 56 53 50 48 46 44 42 40 37 34 31 29 27 35.6

265 265 265 265 244 224 207 190 176 162 150 145 141 136 131 125 120 115 107 101 94 89 83 78 74 70 66 62 59 56 53 51 48 46 44 42 40 37 34 31 29 27 35

275 275 275 272 250 230 212 195 180 166 155 151 146 140 135 129 123 117 109 102 96 90 84 79 75 71 67 63 60 57 54 51 49 46 44 42 40 37 34 31 29 27 34.3

315 315 315 300 276 253 233 214 197 183 177 170 163 156 149 142 132 123 115 107 100 94 88 83 78 73 69 65 62 59 56 53 50 48 46 43 42 38 35 32 30 28 32.1

325 325 325 307 282 259 238 219 201 188 182 175 168 160 152 144 134 125 116 108 101 95 89 83 78 74 70 66 62 59 56 53 51 48 46 44 42 38 35 32 30 28 31.6

S 355 335 345 335 345 335 345 314 321 288 295 265 270 243 248 223 227 205 209 194 199 187 192 179 184 172 176 164 167 156 159 146 148 136 137 126 128 117 119 109 110 102 103 96 96 90 90 84 85 79 80 74 75 70 71 66 67 63 63 59 60 56 57 53 54 51 51 48 49 46 46 44 44 42 42 38 39 35 35 33 33 30 30 28 28 31.1 30.6

355 355 355 328 301 276 253 232 212 204 196 188 179 171 162 150 139 129 120 111 104 97 91 85 80 75 71 67 63 60 57 54 51 49 47 44 42 39 36 33 30 28 30.2

400 400 390 358 328 300 275 251 237 227 217 207 196 185 170 157 145 134 124 115 107 100 94 88 82 77 73 69 65 61 58 55 52 50 48 45 43 39 36 33 31 29 28.4

410 410 397 365 334 306 279 255 242 232 222 210 199 187 172 158 146 135 125 116 108 101 94 88 83 78 73 69 65 62 58 55 53 50 48 45 43 40 36 33 31 29 28.1

S 460 430 440 430 440 412 419 378 385 346 352 316 321 288 293 263 269 253 258 242 247 230 234 218 221 205 208 190 192 175 176 161 162 148 149 137 138 127 128 118 118 109 110 102 103 95 96 89 90 84 84 79 79 74 74 70 70 66 66 62 62 59 59 56 56 53 53 50 51 48 48 46 46 44 44 40 40 37 37 34 34 31 31 29 29 27.4 27.1

-1:2000) 460 460 460 434 398 364 332 302 281 269 256 242 228 214 195 179 164 151 140 129 120 111 104 97 90 85 80 75 71 67 63 60 56 54 51 48 46 44 40 37 34 31 29 26.5