Rapt
Congratulations to getting the commentary out.
The discussion is valuable and the references and thoughts in the commentary provide extra information and guidance.
The committee gets a beating every so often.
Thank you for not giving up on your effort with the committee and the rest of us...
I would suggest that it might be worth reviewing the failure of stair structures in buildings in Christchurch NZ.
Based on these findings, we allow the stair at the lower landing to slide and not become a stiff and potentially premature failure in the building
The mass needs to be considered
The...
Regarding the tilt up wall concept, no tension is implied under the changes and I assume that will need to be checked under the above changes.
Shear will be applied.
Tilt Up walls are typically supported at the two bottom corners.
Rapt
Thank you for the link to Amdt 2
Apologies as I know this is out of your area but,
I have a question on the alteration to Clause 11.7.5 and want to check if my interpretation is correct
Paragraph 1 is unchanged:-
(Hence where tension exists under any eq loadcase, Ast dowel>Ast wall)
New...
Hi Rapt
I understand that NCC can, should they wish, make up their own rules.
I can remember a few occasions where amended codes took a while to be included in the Building Code of Australia
However,
it would be valuable if NCC provide commentary on why they have moved away from adopting a...
If someone is able to explain why NCC is overriding the standard (and can do this without needing future legal advice I would love to know the logic. As a personal opinion, I think that the small diameter ties in blockwalls would interfere with the core filling density and reduce the strength of...
Dan
Bondek Condeck are attached using shear studs if composite action is required in teh steel beam. The shear studs are usually attached after the decking is laid by flash welding
Where supported on Brick, slip joints are usually installed (Refer to stramit and bluescope web sites for some...
All,
I can't see how ties can be avoided as per the standard. The code is explicit and I am yet to find research that would suggest otherwise.
Ties provide
a) Restraint against local buckling of the bars
b) Confinement of the inner core of the concrete
c) Vertical alignment control of the bars...
Thank you guys.
I believe that the ties are required. THere is a need to provide local buckling restraint and the ligs also keep the vertical alignment try.
With lapped splices there is a need to provide restraint for the bars at that point so I didn't see it being a solution.
I was wanting to...
We are looking at a project where the EOR has designed columns without intermediate ties as required by the code. Bars are not bundled and details are Column size 32"x32". Single #8 bars at 6" ctrs with only an outer tie. In the commentary to 318-77 there is a suggestion that ommission of...
Suspended slab
All poured same day
Top surface of 5mm has been water blasted off
Am conerned about what is underneath
Cores not taken yet
Trying to resolve methodolgy
Thanks for the thread link
It was rain effected during placement. The Superintedent instructed them to cease work but they did not. There is now a dispute adn I would like a rational and justifiable basis for the next part of the "discussion".
I have asked a contractor to core sample a concrete slab that was rain effected. I am concerned about porosity adn would like to test for density. If there is anyone with guidance or suggestions I would appreciate the input