Party wall was detailed as 300mm overall with reinforced concrete completely filling the cavity - so I presume would be OK, so that's good. Still interested to know more if anyone has background designing any 3D printed structures.
I've found several journal papers for structiral properties and fire performance, but they're first-principles theoretical in terms of modelling, FE analysis, etc. and with some basic testing rather than full-scale testing. I haven't yet found anything that's bringing that detail down into design rules that can be applied to structures with reliability index, suggested capacity reduction factors, methodology, etc.
Original Message:
Sent: 25-03-2025 10:05 PM
From: John Trenerry
Subject: How to build a house four times faster
Today I had an opportunity to look at the duplex being built in Dubbo as per the proud announcement from NSW Government last November.
https://www.nsw.gov.au/media-releases/construction-begins-on-nsws-first-3d-printed-social-housing-project
It's still weeks away from completion, so that is certainly not fast. Developers and builders in SE Queensland would have churned out hundreds of retirement / lifestyle living type houses built in a traditional manner in that time.
This Dubbo example is a duplex and has a party wall separating the occupancies, so I'm now really interested in the background as I posted above. Has an AS 1530.4 fire test been done to justify FRL 60/60/60? Has an acoustic performance test been done (even if it's an as-biult site test) to confirm acceptability?
Being a government funded project, can we look at the compliance documentation that supports it's use for this building? I'm sure the (former) NSW Building Commissioner would be very interested to review all of that if it was a private project.
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John Trenerry
Original Message:
Sent: 18-03-2025 06:33 PM
From: John Trenerry
Subject: How to build a house four times faster
Would love to see a CPD webinar and / or detailed engineering article describing the structural design principles and construction detailing. One that goes into the fine detail of structural design - compression, flexure (vertical and horizontal), connection capacities, etc. and serviceability, as well as design for robustness, durability, weathertightness, fire performance, acoustic performance, thermal performance - and the types of evidence of suitabilty used to confirm compliance with the BCA.
Cheers,
JT
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John Trenerry
Original Message:
Sent: 17-03-2025 08:21 AM
From: Jackson Jones
Subject: How to build a house four times faster
With no end to Australia's housing crisis in sight, could a new 3D-printed housing project open a path to more affordable construction techniques?
Read more about it in Create Digital
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Jackson Jones
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