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Another fact of the matter is that there are a shitload of OLD buildings I know of in vancouver and also a long the pacific coast of the United States that weren't inspected when they were first built and have withstood earthquakes, rain, snowstorms, you name it. It's not that I don't believe in inspections but there are buildings that are living fact all over the world that have survived the test of time just because they were engineered properly. Once again can we not go on to the racist path and say that Chinese are skimpy idiot cheapskates and focus on the point of the post which was to show us what can be achieved with prefabrication. |
I wonder what kind of work was done for the foundation, it seems like they just started building on a flat piece of land judging from the video. You can only see so much of it. |
^obviously the foundation was set prior to the start of the video. |
The entire building is steel pre-fabbed columns, rather than concrete and rebar. I'm not in construction, but I'm pretty sure I wouldn't want to be in the top levels of a building that was held together by bolts and nuts with everything just bolted/riveted to the frame. I'd feel a little better with some permanence and flexibility built into the building. :) |
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As for the post on the last page about, "they obviously accounted for flex/settling" imo it's impossible to just "account" for settling when you have hundreds of thousands of pounds of steel stacked on top of one another over a 6 day period.., a typical house in Vancouver can be built on engineered fill and settle enough to shift concrete slabs over MONTHS, but of course a 15 story structure built in china couldnt possibly do that right? :troll: to argue that any structure of this magnitude is built with any sort of "quality" can be done in 6 days is just ignorance imo, a 4 story wood frame condo in North America can take years to complete, and still have many many problems with quality control, and these are people who supposedly know what they are doing.. |
Not really that impressive. I bet they spent over a year (or more) building the prefab sections and getting them just right. And how much time was spent with the workers training/practicing at assembling the various pieces before they even got the the site to start building? How many "rehearsals" did they go through? OR They could have built it like they do log houses. You assemble the entire building at the factory. Everything is built perfectly, all pieces are the right size and everything is square. Then you dis-assemble it, mark the pieces and ship it off to the construction site for final assembly. I bet if you added up all the man hours they spent designing, prefabbing components, training workers and putting the building up it would be no different then just building it the "normal" way on site. The only way this makes sense is if they are planning on making a lot of these buildings and they are all identical. That's really the only reason to go pre-fab. I'd put money that the next building gets built at a much more leisure pace, since they already have their propaganda video out of this one. |
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Garden City single lane .... construction but nothing is happening ... and yes canada LOVE doing stuff rush hour vs doing things @ night when there is NO traffic... when it rains ? no construction. |
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With the # of auto-cad / mech engineers in China, im sure it will take them a week to re-design a new building similar to this method. how is this a propaganda video? I would say it was a smart marketing video; just look at the # of viewers is gotten.... im sure there are tons of companies in and outside of china wanting to contact the construction company to start doing the same thing in their region. Especially for developing country wishing to expand their housing market. For developers, the faster you build, the faster you can get people to move in and get on with the next project. |
first off, this would never fly in north america. labor wages are too high and workers have all kinds of rights that prevent them from working at the efficiency level these chinese workers go at. now, the dangers of having a short window frame for constructing a building is the higher costs associated with the risks. for example, a non-conforming batch of window panes would set the project back by the amount of time required to reorder and receive the new panes. adding to this would be loss of labour wages allocated to the window pane part of the project (of course, they can be reallocated elsewhere, however, the labour resources will have to be spent again when the window panes arrive) |
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Throwing a high number of AutoCAD engineers at a project does not mean you can cut design time down to weeks or days. If 1 man can build a house in 1 year, then 2 men could build it in 6 months. 3 men could build it in 4 months and so on. But only up to a point. Adding manpower to a job doesn't scale linearly - you can't have 365 men build a house in 1 day. It's just not an efficient use of manpower to try and design and erect a building in record time. If you took all the people involved in this project and split them up into 10 groups and had them design and erect buildings, they would get more done than one large group. They could start 10 buildings at the same time, and even if it took longer to erect each building, they'd still come out ahead of the single crew trying to do things in record time. Anyone in project maagement would understand this. It's been proven time and time again that throwing huge numbers of people at a project doesn't reduce the time to finish the project by an amount equal to the increase of the manpower (as I said, it doesn't scale linearly). In fact, in many projects it has been found that things actually start to slow down when too many people are involved (especially in areas of design). That's why this is a propaganda video, not a marketing video. Marketing implies you're selling something that people can actually buy. Nobody would come to a company and say "hey, I need a hotel built in 2 weeks - when can we start?" because it could never be done. All this video shows is how quickly they could assemble something on-site. As I mentioned (and you completely missed) they don't show all the costs involved or all the work done before they assembled the building. I'd still put money that the total cost to make this building is higher than normal construction methods simply because efficiency drops when large numbers of people work on something. And it's not like this is something new. I mean, nobody in Europe, Japan or America has ever had the idea of throwing people at a project to speed things up. And nobody in Europe, Japan or America has ever designed anything pre-fab or used AutoCAD or other tools to cut design time. :rolleyes: You should read books on project management and see actual case studies done. Then you'd see right through this video. |
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