Download Is 800 1984 2007 Comparative Study PDF

TitleIs 800 1984 2007 Comparative Study
File Size2.3 MB
Total Pages149
Document Text Contents
Page 74

[Type the document title](1984)


75


= 450 x 9.4 x 250 /( √3 x 1.1)

= 555 x 10
3
N

As V (design shear force) < 0.6 Vd . the effect of shear force on

plastic moment capacity Mp .

Moment capacity

Since the section is plastic and there is not effect of shear force on

plastic moment capacity

Therefore , design bending strength of cross section

Md = βb x Zp x (fy/ γmo )

= 1 x 1553 .36 x 10
3
x (250 / 1.10)

= 348.5 kN m > 269 kN m ( M = design moment)

Hence safe

Checks

Deflection checks :-

deflections are to be checked for most adverse but realistic

combination of service load and their arrangements by elastic

analysis using load factor 1.



Now , δmax = 5 x w x L
4
/( 384 x E x Ixx)

here w = 1.0 x 13 + 1.0 x 12.5

25.5 kN

So ,















Clause 8.2.1.2























Clause 8.2.1

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