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Thread ID: 141816 2016-03-04 21:14:00 Darwin Rules ! Terry Porritt (14) PC World Chat
Post ID Timestamp Content User
1416867 2016-03-05 00:45:00 because balconies are designed to hold the weight of it being full of people. .

Yeah and lifts say X number of people too....or x kg.
Then you work that out and reliase it's about 60-70kg per person, and you look around and see some of the people in there with you are way more than that.

So that would be the lift manufacturers fault?

Decks are designed to fit a number of people comfortably, not jammed in like rats and all jumping up and down.
Not to mention, how old it was too.....
pctek (84)
1416868 2016-03-05 01:15:00 lifts have other safety devices. decks don't.

there plenty of parties around NZ with people crammed on decks and they don't fall down.
i do recall one that did and that was due to all the bolts being rusted almost right through (old beach house).
they are usually fairly well over engineered.
tweak'e (69)
1416869 2016-03-05 01:31:00 the thing that i see is there is holes in the walls for the 11 or so joists, but the balcony only has 2-3 joists sticking out like the broke under the floor.
it will be interesting to find out the cause of it.
tweak'e (69)
1416870 2016-03-05 01:35:00 "Another witness said, "you could see it bouncing, yeah and the balcony was just bouncing up and down. You heard it crack and just saw the end of it.
Police had told them to stop but they didn't and it collapsed, falling 4m on to the bitumen below, he said."

www.radionz.co.nz

Like I said, Darwin Rules :badpc:

Cave Creek was different. The basic design was ok, but instead of the cantilevered beams being bolted to the base structure as per drawings, they were nailed. When loaded the nails just pulled out, the timber didn't fail.
(All the best DOC field staff who would normally have built the thing had left due to eternal restructuring and cost cutting)
Terry Porritt (14)
1416871 2016-03-05 01:47:00 It is not that uncommon event for whatever reason:
www.nzherald.co.nz

Whoops made a mess of pasting lost the links I'll have to find them

www.nzherald.co.nz

www.nzherald.co.nz
Terry Porritt (14)
1416872 2016-03-05 02:11:00 It is not that uncommon event for whatever reason:
www.nzherald.co.nz

Whoops made a mess of pasting lost the links I'll have to find them

www.nzherald.co.nz

www.nzherald.co.nz

depends on the reason why.
129 year old villa....its kinda expected.

the omaha one i remember, that was rusted out bolts. i suspect i even worked on that place man many years ago.

but is there any information on why they collapsed?
where any design failure?
tweak'e (69)
1416873 2016-03-05 02:25:00 i may been wrong on part of it.
just seen a another pic and it looks like a lot of the joists where attached by hangers. that would explain why theres only a few bits of joist sticking out of the balcony.
tweak'e (69)
1416874 2016-03-05 03:24:00 Personally I wouldn't trust any domestic cantilevered balcony that didn't have any support columns. Then there is the water ingress problem that could cause hidden rot.
Maybe rental properties with balconies should be checked periodically by a suitable building inspector or structural engineer, like the bush walk bridge structures are in the Wellington Regional Council area.
Terry Porritt (14)
1416875 2016-03-05 03:53:00 i may been wrong on part of it.
just seen a another pic and it looks like a lot of the joists where attached by hangers. that would explain why theres only a few bits of joist sticking out of the balcony.

i was wrong. what looked like hangers is flashings for the joists.
tweak'e (69)
1416876 2016-03-05 03:56:00 Personally I wouldn't trust any domestic cantilevered balcony that didn't have any support columns. Then there is the water ingress problem that could cause hidden rot.
Maybe rental properties with balconies should be checked periodically by a suitable building inspector or structural engineer, like the bush walk bridge structures are in the Wellington Regional Council area.

exactly. water ingress would be a major concern.

tho this incident is somewhat concerning. theres plenty of homes around with much bigger decks that can hold a lot more people. how many are often overloaded without anyone realizing it ?
tweak'e (69)
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