yes, buts thats because they actually have a heavy industry. something nz has very little of.
clark20,
Sep 21, 3:17pm
Nippon was the name of the company that made them
clark20,
Sep 21, 3:19pm
Agree with you, however we were debating today will they weld or rivet it together as per original
apollo11,
Sep 21, 3:28pm
Yep, although we tend to be very good at the niche stuff. We then have the tendency of selling out to a foreign buyer with big cash.
casualobserver,
Sep 21, 3:42pm
No - it wasn’t. They were built by Ishikawajima–Harima Heavy Industries.
casualobserver,
Sep 21, 3:44pm
I don’t have any - just like you. But then I’m also not saying it’s a job that should be done before morning tea, whilst still acknowledging I have no experience with bridge construction - like you did.
harm_less,
Sep 21, 3:52pm
The machine I was operating had a 100m range (limited by accuracy capabilities) so I imagine our subjects were a bit bigger than yours. 4km of sea cliffs (to monitor erosion) and numerous engineering projects in the petroleum and manufacturing sectors. Brilliant results with very cost effective deliverables for our clients.
poppy62,
Sep 21, 4:36pm
That strut was in poor condition as far as Rust is concerned, Quite visible. What is surprising is the amount of damage a truck body has done to the beam, especially as it only appears to have leaned against it without too much force involve. Can't see the thickness of the webbing on the beam but it would have to be at least 1/2" (if not more). I assume that the beam being in a state of tension would be more susceptible to side impact damage and as seen in pics has buckled quite easily. It's really surprizing the amount of damage done especially when one considers how well the "Armco" on the Motorway stands up to some heavy hits.
apollo11,
Sep 21, 4:54pm
Watch some vids of Hyundai Heavy industries, or the crowd that build cruise ships. Cnc'd and welded enormous 100 ton chunks are slotted together with millimeter accuracy. As far as the bridge goes, all they are doing is re-creating an existing part. They can probably get their measurements from the same part on the other side of the truss.
gunhand,
Sep 21, 5:03pm
This was my thoughts as well. I didn't see what truck did the damage as two were blown over I believe. But it does seem like a lot of damage for a truck being blown over. Could have been a violent impact for all I know.
mazalinas,
Sep 21, 5:04pm
Please let someone who thinks like you be repairing it as opposed to the poster who seems to think it's a 2 minute job.
mazalinas,
Sep 21, 5:11pm
I think it was the really big blue truck that did the damage not the little white one that seemed to just tip over the concrete divider thing. And the wind gusted up suddenly from 60kph to 127kph at the time.
s_nz,
Sep 21, 5:17pm
We will have to wait an see I guess. Would look ugly if it dosn't match teh original constriction style. On the other had you don't really see much riveted construction these days. Don't know how much of the gear or people failure with the technique are in the industry anymore.
Given materials matching the original design are unlikely to be available there is a good change that the new member will look different anyway.
It is unlikely that will
mazalinas,
Sep 21, 5:20pm
There's a bit of a blurb here about the freak wind: "On Friday, Auckland was thrown into chaos when a 70kt squall, lasting 10 minutes, and shifting 100 degrees, ripped down the harbour causing a container to be blown off a truck on the Auckland Harbour Bridge and another to bounce off the centrespan The incidents caused the centre lanes of the bridge to be closed and remain that way for several weeks.
Fortunately none of the AC75's were on the water, with Friday's forecast being a little on the high side for America's Cup training.
All week the wind has been up and down, with Tuesday also being a no-sail day due to strong winds. However Friday's freak weather event is a warning to all sailors. An hour before the squall, conditions were only about 20kts, increasing to 25kts in the occasional rain squall, interspersed with blue skies. They increasing suddenly to 45kts average at Northern Leading Beacon gusting 55kts. A few minutes earlier it was recorded at average 40kts gusting 70kts on the Harbour Bridge, lasting for 10 minutes before dropping back to 20kts average and changing direction by around 100 degrees.
Similar readings gusting to 55kts were recorded at the Royal New Zealand Yacht Squadron clubhouse, adjacent to the Harbour Bridge.
No wind warnings were issued for the Harbour Bridge. Later checking of wind data on Predictwind, it transpired that the wind had been gusting at 70kts on Auckland's West Coast all morning - and it seemed that one squall popped over the top of the Waitakere ranges which lie between Auckland and the Tasman Sea." https://www.sail-world.com/news/231703/Americas-Cup-Rialto-AC75s-dodge-a-bullet
s_nz,
Sep 21, 5:41pm
Cheers.
I am a professional Mechanical engineer. While our training is similar to structural engineers bridge engineering is quite specialized, so I have no idea about the details.
You can be assured that there is a significant team of Washington Accord Degree qualified Structural engineers working on resolving this issue. When they have a solution, it will be sent to an independent group of also well qualified engineers to conduct a full peer review, to ensure that no errors or bad assumptions have been made.
Bridge engineering is quite specialized, these people have a professional reputation to maintain, and won't be pressured by a few impatient commuters into risking life safety or the integrity of a multi billion dollar replacement cost structure.
mazalinas,
Sep 21, 5:52pm
Yayyyy glad to hear!
rbd,
Sep 21, 8:20pm
You have posted very well on this subject. There are always those that think that things like this can be repaired with a few bits of RHS from Bunnings drilled to match existing holes. Sigh.
People also have to remember that the design standards for bridges (and I have no idea what they are) have probably changed since 1959. Aspects of more modern design probably have to be considered.
This is a sad example of how Professional Engineers are not valued in this country. Many will blame the delays (due to the requirement for complex engineering design) as "red tape".
john1623,
Sep 22, 2:43am
Both trucks were only 4 wheelers not big by any stretch.
alowishes,
Sep 22, 3:33am
As long as the bridge repair team contact the ultra knowledgeable types on this thread the bridge should be repaired ‘before morning tea’. pffft!
mrfxit,
Sep 22, 4:11am
I think the general consensus of this thread would indicate that while there are a lot of design details to account for, theres also a lot of overenthusiastic time consuming protection systems dealing with anything legally involving humans
kazbanz,
Sep 22, 4:34am
s_nz I have no doubt as to the professional expertise available or required. I simply have ZERO faith in the "system" that gets the professionals on the job. Or to rephrase. If "They" were responding to a house fire it would be burned to the ground before the fireys were even called out.--Ohh but afterwards there would be a 10 million dollar flower garden built in memory of the house.
maxi090605,
Sep 22, 5:21am
knowing it's a chinese built product, I'll stay away from it afap, would definitely lasts a couple of weeks.
It wasnt a Racial Slur. Nippon rhymes with Clipon!
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