AS3600 - Section 5 Fire Design

[Trenno]

Hi all,

Just wanted to raise a point with the current (amended) Section 5 of AS3600.

Currently there is a big discussion in the office, about 600 x 300 columns in the basement of a 5 storey apartment complex.

"Back in the day" this column size was pretty stock standard, however now according to the new Section 5, the minimum dimension now needs to be 350mm for 2 hour fire rating with neta about 0.5, which of course isn't ideal from an architectural and parking space perspective.

The senior engineers think that the fire section just keeps getting more conservative with each amendment and update.

What are your thoughts on Section 5?

Nearly all carparks up until last year would technically fail the current fire section of our code (with 600 x 300 columns).

 

[asixth]

I might have some more stuff that I'll link when I get home. Just on the bus now. I should have sent you an invitation over the weekend. One of my mates use to be a colleague of yours.

 

[asixth]

Thanks. I'm trying to building up my network across the digital spectrum. This is the only other doc I have regarding fire and AS3600. It doesn't look to be very helpful. In 2010 there was a series of seminars going on regarding the changes in the 2009 concrete code. Shouldn't be too long before the committee sits down and does it all over again.

https://www.dropbox.com/s/4o7mwow972cs49b/Lecture 7 - Earthquake and Fire - Potter.pdf?dl=0