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Bali’s 'magic' bamboo homes [video]

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Re: Bali’s 'magic' bamboo homes [video]

#21
post #12

For a long time i am looking for a synthetic bamboo equivalent for acoustic properties. But so far I've not found anything similar. I am thinking, what if I engrave bamboo like pattern on carbon fiber, will it produce similar acoustic? Can any material/sound/chem engineer help me?

> looking for a synthetic bamboo

Just curious, why?

Re: Bali’s 'magic' bamboo homes [video]

#22
post #19

Density of Carbon Fiber is 1743kg/m^3 and that of Bamboo is 1160 kg/m^3. Acrlyic, Nylon, Polycarbonate have similar density as Bamboo. Bamboo's strength falls somewhere between fiberglass and carbon fiber Some things to think about include ecological factors (bamboo is renewable), environmental factors (bamboo is flammable), loading factors (steel can be made ductile and its high properties are isotropic), and weight…

> bamboo is renewable

What if it's treated?

Re: Bali’s 'magic' bamboo homes [video]

#23
Every bamboo pole is different.. For this reason bamboo could never fit into modern engineering practices. Engineers use things like I-beams because, (in theory) each one is the same and they have been tested (probably millions of times) Their structural characteristics are known. So an engineer can sign off on a building and the team can get architectural indemnity insurance. Bamboo, and also things like using the entire trunk of young trees, are much much more efficient in terms of embodied energy. Eg, a tree is designed for strength / flexibility, why cut it up and then glue it back together to form a gluelam beam? Its because engineers can sign off on it then..

Maybe theres some innovative way to integrate stuff like bamboo into modern engineering practices, maybe each individual unique bamboo pole could be scanned (like an MRI) and AI could be used to accurately structurally model it. The the whole structure could be accurately modeled and signed off on in theory.

Re: Bali’s 'magic' bamboo homes [video]

#24

Since bamboo is hollow could filling the bamboo with concrete be used to reinforce and increase its load bearing strength?

My guess is no. Concrete fails under tension and with the irregular and natural assembly process the structure probably would have issues with tension and all the extra weight. The cost of filling each bamboo void would also make it costly and less renewable. My gut feeling.

Re: Bali’s 'magic' bamboo homes [video]

#25
post #20
post #6

Earlier quoted context omitted.

It's more humid than straight up 'hot'. And when it rains, it pours like there's no tomorrow; rainy season, anyway. I was staying in a medium-sized house in a fairly tucked away village; surrounded by jungle and rice fields. Over the 3 months that I stayed in this house, I saw iguanas the size of my arm, several snakes cruising in the backyard, and plenty of ants that like to eat bamboo and other wood-stuff. That bei…

I've always wondered why there aren't lasers which can shoot down mosquitoes on its own.

There is a company working on it… https://en.m.wikipedia.org/wiki/Mosquito_laser

The current plan is a ‘fence’ which will detect, identify, and kill 50 mosquitos per second. It can be tuned to only kill female mosquitos of the malaria carrying species measuring reflectivity and wing beat frequency. They speculate it could cost $50 for a 30 meter fence.

Looks like the company is targeting citrus pests in order to get some cash moving, mosquitos will come later now. https://www.technologyreview.com/s/603721/insect-zapping-las...

Their commercial site: https://photonicsentry.com/

Re: Bali’s 'magic' bamboo homes [video]

#26

Having been in SE Asia and Bali many times and seen how they spray chemicals against insects... I wonder how they handle that in the middle of the forest... I would never go there without an independant assessment... I love the design but I prefer something closed and airconditionned (mosquitos). Mosquitos are a major issue (even in cities): https://www.nea.gov.sg/our-services/pest-control/mosquito-co...

I agree...it’s beautiful and makes you get a real sense of the nature that surrounds you but from a practical and being widely used perspective there are a lot more problems to be solved.

Re: Bali’s 'magic' bamboo homes [video]

#28

Having been in SE Asia and Bali many times and seen how they spray chemicals against insects... I wonder how they handle that in the middle of the forest... I would never go there without an independant assessment... I love the design but I prefer something closed and airconditionned (mosquitos). Mosquitos are a major issue (even in cities): https://www.nea.gov.sg/our-services/pest-control/mosquito-co...

As an Indian - yeah Mosquitos are a real problem in SE Asia. The usual techniques of dealing with them are - use mosquito nets. In a different video the owners have a mosquito net on the bed frame. Usually with mosquito net, they are a non-issue during night time. The hard to deal with problem is evening time.

The truth is - these houses will never be as comfortable as a centrally air conditioned houses of US. Evening problem can be somewhat dealt with blinds and nets that close off the house after sunset. But the best method is, usually to turn-in early to bed. That is what, people who live in villages do. In the end - owners have to adapt and I do not think these houses are for everyone.

Re: Bali’s 'magic' bamboo homes [video]

#29

It's an amazing building material and there have been a number of recent articles that have highlighted its use as scaffolding material that can be built up to several hundred feet high. https://www.dailymail.co.uk/news/article-2290166/Hong-Kongs-...

In regards to very tall bamboo scaffolding...

A related side topic here might include near famous Indonesian disregard for safety - or at least willingness to overlook it. One of the reasons I was told that by Indonesian workers in Malaysia, whom there are many of. They’re willing to work cheaper and do more dangerous jobs.

KL in particular has a ton of skyscraper work being done by Indonesians and I saw first hand the lack of what i would consider appropriate safety.

Re: Bali’s 'magic' bamboo homes [video]

#30
post #19

Density of Carbon Fiber is 1743kg/m^3 and that of Bamboo is 1160 kg/m^3. Acrlyic, Nylon, Polycarbonate have similar density as Bamboo. Bamboo's strength falls somewhere between fiberglass and carbon fiber Some things to think about include ecological factors (bamboo is renewable), environmental factors (bamboo is flammable), loading factors (steel can be made ductile and its high properties are isotropic), and weight…

> bamboo is renewable What if it's treated?

I think the parent is referring to being able to grow easily. Per the video, an 18m timber can be grown in 3 years.

I believe you are thinking of recycle-abiliy, which would be reusing an existing piece of bamboo.

Both are valuable considerations.

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