DIMENSIONS AND PROPERTIES ISMB Medium beam

ISHB Heavy beamISWB Wide beamISJB JOISTISLB Light beam

w a h b tf tw Ixx Iyy r xx r yy

kg cm2 mm mm mm mm cm4 cm4 cm cm

ISHB 450 87.24 111.14 450.00 250.00 13.70 9.80 39210.80 2985.20 18.78 5.18ISMB 550 103.71 132.11 550.00 190.00 19.30 11.20 64893.60 1833.80 24.16 4.06

Additional M= 0.00t-m

10 mm322.50 cm 2.0 t 250 mm

97.50 cm

190 mm

15 H=550 h=475.0

20

190 mm

ctive throat thickness of weld for flange= t= 10 mm 1.00 cm t_weld < 0.75 tf OKective throat thickness of weld for web= 0.7 cmof weld group= Ixx 41367.827 cm4tion modulous= Z 1504.28

250 M Paar force 2000 kgding Moment 195000 kg-cmct shear stress in the weld

a of the weld= 105.2 cm2missible stress in weld= 1100.0 kg/sq.cmmissible shear stress=fs= 945.0 kg/sq.cma of flange weld= 38.0 sq.cma of web weld= 67.2 sq.cmd shared by flange weld= 341.4 kg/sq.cmd shared by web weld= 603.6 kg/sq.cmal Shear= 945.0 kg

ual Shear Stress on weld= 19.02 kg/sq.cmar stress in flange weld= psf 6.9 kg/sq.cm

ar stress in web weld= psw 12.1 kg/sq.cm

ding stress in weld= pb 129.6 kg/sq.cm

ding stress in extreme fibre weld= pb1 129.6 kg/sq.cm

mbined stress in flange weld= pc1 129.81 kg/sq.cm

mbined stress in web weld= pc2 130.20 kg/sq.cm

combined permissible stress in weld= fc 1100.0 kg/sq.cm0.1 cm

of flange welds= 0.2 cmsay 2.00 mm

0.084 cm of web weld= say 1.00 mm

ar capacity of Member:ar due to load= 2.101 tof section 6.489E+08 mm4

Designation

a of web 5727.680 mm2

ar stress= 3.599 N/mm2

imum shear stress 112.500 M Pa OKmissible average shear stress 100.000 M Pa OKo 4%

= 6.952 t-m695167.9 kg-cm 6.820E+07 N-mm

ding stress= 294.59 kg/sq.cm 30.030 N/mm2

missible bending stress= 165 M Pa OKo 18%

wable stress= kg/sq.cm0 N/mm2

itance due to longitudinal force=Crane surgeBraking force

ck for deflection:122.5 cm

ection= 0.18 mmmissible deflection= Le/750= 1.63 mm OK

ACKET WELDED TO PARALLEL TO FLANGES

120 mm 10 t (load on one bracket)

450

250

ISHB 450

Effective throat thickness of weld for flange= t= 6.0104 mm 0.85 cmEfeective throat thickness of weld for web= t= 0.60 cmLength of weld along X-axis a= 18.00 cmLength of weld along y-axis d= 25.00 cmArea of the weld= 36.7 cm2

x_bar= 5.31 cmEccentricity of the load= 24.69 cmM I of weld group= Ixx= 4163.4595 cm4

Iyy= 1302.5046 cm4J=Ixx+Iyy= 5465.96 cm4

Direct shear stress in the weld fa= 272.75 kg/sq.cm27.80 M Pa

Twisting moment/Torsion resisted by weld group Mt 246885.25 kg-cmShear stress due to twisting moment=Permissible stress in weld= 1500 kg/sq.cm

Y

X X

Y

X'

e

Lr

a

d θ

Radial distnce of corner of the weld at top Lr 17.81 cmMaximum shear due to Mt= ft= 804.5 kg/sq.cmCos θ 0.7θ 44.57º 0.778Resultant stress fr= 1016.983 kg/sq.cm

103.668 M Pa OKAllowable shear stress= 110 M Pa

1100.000 ksc