chinese workers build 15 story hotel in 6 days

[ilvtofu]

Originally Posted by Hondaracer

you know how precise each one of those sections has to be to make a squared building?

pre-engineered metal framing HERE has a shit load of problems if not installed right, not to mention other pre-fabbed stuff like truss's etc. if they are not meticulously installed, your whole house is out of wack and walls and ceilings run into angled corners etc.

I'd say it's fairly safe to say that yes, this building is infact built poorly, the argument whether it's structurally sound or not is another matter, but imo to put together 16 stories over 6 days, theres no way in hell the time was spent on each floor to make sure you are level etc.

one floor in that building 1/8th of an inch off, causes the whole building to be off, and the frame being installed over 6 days doesn't have any additional flex or settlement once 15+ more stories are installed on top of it shortly after?

shit is garbage holmes

If you look at it from an industrialist specialization built standpoint you will see that to have the workers constructing everything and the same people assembling things in a dirty gravel pit is not going to garner the best cost:quality

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.

[The_AK]

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.

[LiquidTurbo]

^obviously the foundation was set prior to the start of the video.

[Alatar]

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.

[Hondaracer]

Originally Posted by ilvtofu

If you look at it from an industrialist specialization built standpoint you will see that to have the workers constructing everything and the same people assembling things in a dirty gravel pit is not going to garner the best cost:quality

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'm fairly certain those houses were built by skilled framers who actually knew/cared about what they were doing, not slave labor.

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?



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..

[dangonay]

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.

[SkinnyPupp]

Originally Posted by ilvtofu

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.

There used to be a lot in Seattle too.. But they are all gone since the earthquake in 2001. Oops.

[$_$]

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.

[bcedhk]

Originally Posted by dangonay

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.

you are not getting the main point of what these builders are trying to prove. When have you ever seen ANY type of 15 level story being actually built in 6 days? Never...

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.

[BNR32_Coupe]

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)

[dangonay]

Originally Posted by eddy89

you are not getting the main point of what these builders are trying to prove. When have you ever seen ANY type of 15 level story being actually built in 6 days? Never...

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.

There is no point of the video except to convince people that don't understand construction or project management that the Chinese can do something the rest of the world can't.

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.

You should read books on project management and see actual case studies done. Then you'd see right through this video.

[Tai Chi]

Originally Posted by flagella

Safety and quality is definitely a concern, but you still can't argue with the fact that they completed this in only 6 days. But yea, I'd hope they spend some more time building to ensure that it meets all the standard.

in china they dun have such thing as standard.