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Steel Designers Manual - TheBestFriend.org

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This material is copyright - all rights reserved. Reproduced under licence from The <strong>Steel</strong> Construction Institute on 12/2/2007<br />

To buy a hardcopy version of this document call 01344 872775 or go to http://shop.steelbiz.<strong>org</strong>/<br />

<strong>Steel</strong> <strong>Designers</strong>' <strong>Manual</strong> - 6th Edition (2003)<br />

1020 Fire protection and fire engineering<br />

Fig. 34.7 H-section columns in-filled with concrete have 1 hour fire resistance<br />

of fire tests have now been carried out to justify the use of 90 minutes’ fire resistance<br />

for composite slabs with standard mesh reinforcement and no additional fire<br />

protection. Guidance is given in Handbook to RS 5950: Part 8. 5<br />

In addition, it has been determined from tests that it is unnecessary to fill the<br />

voids between the beam top flange and the floor decking for ratings up to 90<br />

minutes, although some increase in protection thickness on the beam may be<br />

required when a trapezoidal deck is used. (See Appendix – <strong>Steel</strong>work in fire information<br />

sheet no. 6.)<br />

34.3.6 Eurocodes<br />

All of the methods given in this chapter are compatible with current (2001) drafts<br />

of Eurocodes:

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