Oddly enough, other drafts accessed through my first link allow me to download PDF versions for free. I guess we wait until it gets posts through sapc.standards.org.
8.2.4.3 is wrong or have I misunderstood? [Edit: Checked against AS 5100.5. The AS 3600 draft is wrong as noted below.]
[ul]
[li]Commas missing before kv in both items (a) & (b)? [Tabs are missing cf AS 5100.5][/li]
[li]Upper limit of 1.10 in (a) should be a lower limit of... not sure, maybe 0.15 to match item (b)? [Upper limit should be 0.10 according to AS 5100.5][/li]
[/ul]
[I won't bother reporting this. I like to watch the world burn and surely someone will misinterpret the 1.10 limit as conservative at some stage.]
I've just gone straight to the shear sections because I was aware they were a major change, and this is pretty disappointing for a second public draft. It's just typos but so sloppy; might need to make a submission after all (or SAI could proof-read their drafts...)
[ul]
[li]8.2.4.2.1 items (a) and (b) are both listed as applying to Asv/S < Asv.min/S, whereas (b) should presumably be the greater-than-or-equal-to provision.[/li]
[li]8.2.4.2.1(a) items (i) and (ii)are both listed as applying to f'c <= 65 MPa, whereas (ii) should presumably be > 65 MPa.[/li]
[/ul]
On a technical note, it appears that the simplified one-way shear rules are very conservative for thin slabs. 0.10*sqrt(f'c) in the draft (once corrected) compared with 0.17*sqrt(f'c) which was previously accepted, eg AS5100.5-2004 and Warner et al 'Concrete Structures' textbook. I might request that the simplified rules include something specifically for slabs - probably just needs the old Beta.1 factor or similar.
You should try being on the committee! There other recently introduced errors in those areas that you have not picked up as well, and they were correct in the last draft I saw early Feb. Somehow they were changed in the interim by the ghosts!
The code isn't listed on the Standards Australia list of open drafts. It only lists drafts that can be commented on using that list. As it explains AS3600 must have a different way to submit comments, as described in the document. It looks like you have to get it through the store which isn't free for me.
It has a button which links to the SAI Global store where the pdf is available for free download (at least in Australia). It also has a paper copy available for sale at $85.
I don't know why it isn't listed on the AS general list of documents open for comment; perhaps because its supposed to be close to the final document to be published in the near future.
Thanks IDS, but when I get to the SAI page it won't allow me to select anything except the hardcopy for $85. Click on PDF in drop-down menu but only hardcopy remains as option.
Can public still submit comments as the document has a title "Combined Postal Ballot/Draft for Public Comment Australian Standard" ? My understanding is no more public comments at postal ballot stage ?
Note the change in Clause 13.1.2.4. The use of development length to develop less than the yield strength should only in regions where full yield strength is not required. Thus, in potential hinge forming regions, one should not use development length to develop less than yield. This is to ensure that concrete structures have sufficient ductility at collapse since bond failure (before reaching yield) is brittle and sudden. AS 5100.5 will need to follow this. AS 5100.5 will need to be changed to follow this.
Correction was made to clauses 8.2.7.1(1) and 8.2.7.1(2) in the most recent draft. The missing strength reduction factor phi was added before V_us. The missing gamma_p was added before P_v. phi and gamma_p are also missing in the current version of AS5100.5-2017. That has to be corrected.
