I would also recommend being aware of the construction phase of the floors above when designing the transfer cantilever and would also allow for pattern live loading where there may be live loading on the back spans on the floors above but none on the backspan of the transfer floor, other...
Having worked in NZ in Christchurch, I was aware that the weight of the pool was going to dramatically contribute to the seismic weight of the structure and as a result would require cross bracing between the posts supporting the pool below. I think the other complication with this is that the...
I was wondering if anyone had designed an above ground pool to sit on a suspended deck before? I was going to design a steel support frame to support the pool, but I am unsure of the spacing requirements to support the base of the pool or the type of flooring beneath the pol that would be...
From what you have shown it appears that the roof sheeting is being used as a sheathing to transfer in plane shear between the drag strut beams. How did you calculate the capacity of the roof sheeting and how did you account for the roof sheet fixings?
I typically get asked to quote to design residential projects consisting of small granny flats up to 2-3 storey houses. These foundations are typically designed in accordance with the Australian Standard AS2870 Residential Slabs and Footings. As I am a structural engineer I understand from the...
I typically get asked to quote to design residential projects consisting of small granny flats up to 2-3 storey houses. These foundations are typically designed in accordance with the Australian Standard AS2870 Residential Slabs and Footings. As I am a structural engineer I understand from the...
I am grateful that Doug let me know that the commentary had been published. I have got it and I agree that it is a good source of information in understanding the standard. I am surprised it took 5 years! I would have loved to of had it earlier. It gives a bit more info on the Fire Design...
Thanks for your input guys. It seems to me that this topic is understood and practiced in different ways. My experience has been that whilst the shrinkage limits have been specified on drawings (56 day max shrinkage), the reasons for it and the calculations used in the design are seldom if ever...
I agree with the above comment. If you don't want to add stiffeners to strengthen the bearing capacity of the web in the existing beam, you should increase the 'spread' of the column reaction into the beam web by increasing the bearing area with a larger column baseplate incorporating base plate...
Thanks guys for your input. I did get the commentary to AS3600-2009. It does provide an example to calculate the 30 year shrinkage strain from the 56 day shrinkage strain which is helpful. Usually in your design though, you would incorporate the shrinkage into the design prior to getting...
I work in Australia and one practice that confuses me, is the specification of 56 day shrinkage microstrain on concrete on the drawings (specification notes). I am interested to know how these shrinkage values are derived, what are appropriate shrinkage strains for different applications etc. I...
