- Producer10/11/2017Geotechnical Instrumentation and Monitoring Market: The Americas to hold the largest shareThe growth of the market is attributed to the increasing infrastructural investment across various countries all over the world, catastrophic failure of structures resulting in loss of lives, stringent environmental regulations pertaining to...
- Producer27/10/2017Bizarre Buildings Part 1 - Animal CrackersAnimal shaped buildings are nothing new - take the Sphinx for example. I come across new zoomorphic architecture (buildings made to look like animals) regularly and decided to put together a list of my favourites. Lucy the Elephant is a six...
Comments29/10/2017 #16 Franci🐝Eugenia Hoffman, beBee Brand AmbassadorIncluding the link to my comment https://www.curbed.com/2016/9/13/12903914/longaberger-basket-company-building-headquarters-sale28/10/2017 #12 Claire L Cardwell#9 Thanks @Lisa 🐝 Gallagher - glad you enjoyed it! I actually can't quite decide which one is my favourite, or where I would like to go first. I would however love to see the floating buildings that Waterstudio NL have designed - and hopefully get an inside scoop on how they did it! I think there's a whole post on floating buildings in itself.28/10/2017 #11 Claire L Cardwell#8 @Ken Boddie - I am going to check out those giant buildings @Ken Boddie, I am particularly intrigued by the idea of a Giant Prawn! I just googled 'giant buildings in texas' and was delighted to find Bruco a giant caterpillar - http://www.monolithic.org/commercial/bruco-a-very-busy-caterpillar @Lisa 🐝 Gallagher you might like him too.... Looks like my list is definitely going to get longer!28/10/2017 #8 Ken BoddieWe have so many of these giant something or other buildings in Oz, Claire, but most that I have visited house tourist trap shops. A few that come to mind are the Big Merino (ram) in Goulburn, the Big Oyster in Taree, and the Big Prawn in Ballina. Then there are huge statues of various things like the Big Banana in Coffs Harbour and the Big Golden Guitar in Tamworth. But there again I’m sure there are bigger and better things elsewhere. Just ask any Texan. 🤣
- Producer08/10/2017Quick Buzz Becoming the Producer Post ► Concrete from Wood!According to the new changes on the beBee platform, a short buzz or a Quick Buzz, as named, will be distributed only to followers and won’t be shared in any hive. If you want to share a link or a picture into a specific hive, you need to write...
Comments10/10/2017 #45 Phil Friedman#42 Ah, Lada, now I understand even better. The WCC is not a significant structural contributor, but essential a surfacing layer and fire-spread resistant barrier. The high admisture of wood sawdust not only lightens the material but probably helps to minimize differential in coefficients of thermal expansion re the GLULAM and surfacing later.
BTW, my share of your buzz on LinkedIn has already racked up nearly 1,400 views and significant engagement. Not bad at all in comparison to the reaction here -- especially when you factor in, what I call, the Reality Conversion Coefficient. Cheers!10/10/2017 #43 Lada 🏡 Prkic#28 Sorry for the late response. I'm in the process of relocation. My office is moving to a different location in the city, and there is a lot of work to do.
Phil, all such research activities are focused on the ecological aspects and finding alternatives to concrete. This method significantly reduces the quantity of concrete.
The image in the post shows the testing process of the specimen consisting of glulam beams on the bottom and the WCC layer over.
Also, very interesting is how two different materials are connected together to ensure distribution of loads but also a solid connection between WCC and timber.
Placing WCC as the secondary (non-structural) layer met all requirements for fire resistance, acoustic and thermal insulation.
As for the lack of the interest, I have nothing more to say. If I had a time, I'd share this myself with my community on LI. Thanks for doing so.09/10/2017 #37 Tausif MundrawalaThis technique should be transported to all the city dwellers in the world. It pains me to read and encounter incidents where a rear part or the entire building collapses due to the dilapidated condition of the structure. It would be of great use here in our city as well as maximum number of people gets killed by huge beams and concrete. Looking at this technology it would be of great help to be placed in dwellings which only uses mortar, concrete and iron beams. Even during any untoward incident people would be safe enough to escape with their lives intact.
Thanks for this quick buzz of yours, my friend @Lada 🏡 Prkic09/10/2017 #35 Lada 🏡 Prkic#33 Although a timber floor slab is claimed to provide a better feel underfoot than concrete floor slab, I never felt the difference on my joints. I've been living whole my life in houses with reinforced concrete slabs and wood floors over. For six years now, I've been working in a 100-years old building with timber floor slabs and what I sometimes feel are vibrations.
To prevent stress on joints, perhaps you can install sleepers subfloor over a concrete slab.09/10/2017 #33 Phil Friedman#32 Joanne, to answer your questions -- 1) epoxy polymers generally do better than polyesters re flammability, smoke generation, and toxic gasses. You are correct, however, that reaction to fire is of concern where polymers (plastics) are involved. Significant improvements can be made by adding inorganic materials to the resins, and in this regard, epoxies are much more tolerant of such additions as to potential modifications of their mechanical properties, which are in general much higher (by 10x on average) than those of polyesters. 2) If a slab floor is to be a "work floor" with people walking constantly upon it, the best way to deal with that is, in my experience, to add a resilient "top floor" over the slab. That can be as simple as rubber or vinyl matting or as sophisticated as a floating "gymnasium" style over-floor. Eh, @Lada 🏡 Prkic?09/10/2017 #32 Joanne Gardocki#27 #28 #30 @Phil Friedman thank you for expanding on the engineering perspective. "Finally, I continue to wonder if a better approach might not be a completely engineered wood member, surfaced with abrasion and fire resistant aggregates held in an epoxy polymer-based matrix?" Wouldn't the epoxy polimer make toxic fumes burning in a building fire? I would also think the profile under heat stress would be unstable and unpredictable in a fire situation, too. Finding your ideas very interesting.
@Gerald Hecht shared a buzz back in July about a prototype for floating islands made of triangular web. I wonder if the floating wood cement mix blocks would make a good material for building on top? The article talks about the webs being able to withstand 50-foot waves. At the time, I couldn't imagine anything on top of the web being able to withstand those same 50-foot waves.
Another question Phil, would you say the wood composit structual floor slabs would have more "give" and be easier on joints for people living and working on the floors? Just one day of standing on concrete floors has me stiff and sore. I can't imagine living in a home that put that kind of stress on my joints yet many housing units are made with concrete floors.
Please tag me in the LinkedIn conversations when you share, Phil. I would love to listen while the topic is kicked around. Again, thank you for enriching the conversation.08/10/2017 #30 Phil FriedmanPS- @Lada 🏡 Prkic, I do believe that the described WCC would be a great material for casting the blocks for the ubiquitous (to NorthAmerica) concrete block building construction. If lightweight blocks could be cast in WCC with self-aligning and self-locking tabs (like giant Legos), the reduced weight might make shipping from centralized manufacturing plants cost-feasible. Resulting in faster, higher-quality assembly on-site by lower-cost, lesser skilled labor. I like that idea a lot, especially in the area of affordable housing. Cheers!08/10/2017 #28 Phil Friedman#23 @Lada 🏡 Prkic, I've now looked at the additional articles listed at the end of the news piece and one of the things I see is that WCC is being used in composite members with engineered wood (GLULAM) in slab applications, for example as the structural floor slabs in a multi-storied warehouse.
In such a case the GLULAM component is used on the bottom where flexure loading (beam bending) puts the GLULAM in tension, while the upper WCC component is placed in compression. This makes sense to me, as it takes the best advantage of the mechanical properties of the materials involved, including the better abrasion and fire resistance of the WCC vs wood.
However, I still wonder why WCC instead of traditional reinforced concrete? Does the reduced structural weight allow a higher live-load bearing for the slab? Even though the upper WCC component will have a lower compressive strength vs reinforced concrete? Or could it be that the WCC component is a better match with the GLULAM component in terms of coefficient of thermal expansion?
Finally, I continue to wonder if a better approach might not be a completely engineered wood member, surfaced with abrasion and fire resistant aggregates held in an epoxy polymer-based matrix?
The issues and questions are quite fascinating and I don't understand why so little interest is shown on beBee by the engineering community which appears to be large. I am going to share this to LinkedIn where I know from experience there are engineers who would love to kick around these questions and the research you point to. Cheers!
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- Producer01/08/2017Small Solutions... Big Results (No. 1)THE FIRST IN A SERIES OF RETROSPECTIVES THAT LOOK BACK AT THREE DECADES OF FINDING VALUE-ENGINEERED SOLUTIONS... Preface: This article begins a series that looks back at various value-engineered solutions to problems encountered by the author in...
Comments03/08/2017 #37 Phil Friedman#30 I agree entirely, Milos, Science and Engineering aren't always just about the "big" stuff, but just as often about understanding and improving the "little" things in life -- like, as you point out, how deep-cycling cell phone batteries reduces their working life.03/08/2017 #36 Phil Friedman#34 Peter> "I'm trying to establish that the term "value engineering" is not a universally understood term.."
Ah, Peter, if you had only said that at the beginning of your first comment, my eyes would not be glazing over with this exchange.
To be clear, I agree with you that the term may not have a single universally-accepted definition. But then how many such terms do?
I believe it sufficient that I used the term in one of its commonly accepted meanings. I am sorry if you mistook what the piece might be about. But it seems to me that the title clearly indicated the article was about "small solutions". Moreover, the lead image reinforces that point, especially in the simulated drawing title box, where it actually describes the object that will be the focus of attention. And if those were not enough to warn you off potential ennui, the first highlighted statement left little doubt.
"Engineering isn't always simply about the design of a product but just as often about the planning and execution of the building of that product..."
Cheers!03/08/2017 #35 Anonymous#34
1. Meaning of “value engineering” in the English Dictionary:
"The process of reducing the cost of producing a product without reducing its quality or how effective it is:
Substantial value engineering had to be done to control costs." (http://dictionary.cambridge.org/dictionary/english/value-engineering)
2. "Value Engineering (VE) is concerned with new products. It is applied during product development. The focus is on reducing costs, improving function or both, by way of teamwork-based product evaluation and analysis. This takes place before any capital is invested in tooling, plant or equipment." - from article: Value Analysis (VA) and Value Engineering (VE): Definitions and Benefits on advice-manufacturing.com (http://www.advice-manufacturing.com/Value-Analysis.html)
3. "Value Engineering is a systematic analysis method which, when properly applied to a product, process, or service, will reduce costs and increase profit margins. It involves creativity and challenges existing procedures, revealing successful new strategies. It is also known as Value Analysis. The results and techniques are the same." - from McGill University Value Engineering Workshop
4. "Value engineering can be defined as an organized effort directed at analyzing designed building features, systems, equipment, and material selections for the purpose of achieving essential functions at the lowest life cycle cost consistent with required performance, quality, reliability, and safety." - from the U.S. General Services Administration (GSA) website
(https://www.gsa.gov/portal/category/21589)03/08/2017 #34 Peter Altschuler#29 No, @Phil Friedman, I'm not trying to build a straw man. I'm trying to establish that the term "value engineering" is not a universally understood term.
Rather than being mundane, it's particularly domain-specific. So, for those of us who are not in engineering or government or nautical construction, we're far more likely to impose our own definition than yours. In such a situation, it helps to clarify the intent.
Your article is technical, and it requires a certain level of knowledge and comprehension. I don't have that and, if I'd known at the outset that it "may be of interest to engineers and tradesman who deal regularly with construction- and manufacturing-related problems and issues," I'd have focused my attentions elsewhere.03/08/2017 #30 Anonymous@Phil Friedman please continue with this series. It's gonna work.
"The practical side of science and engineering" - down to earth science - a few simple strategies.
Associate Professor of Materials Science and Engineering and Director of the Monash Energy Materials & Systems Institute (MEMSI), Monash University, Australia Jacek Jasieniak, reveals a few simple strategies to extend your phone's battery life by more than 40 per cent. Monash is one of Australia's leading universities and ranks among the world's top 100.
Article: "Explainer: how to extend your phone’s battery life" (https://theconversation.com/explainer-how-to-extend-your-phones-battery-life-80958)03/08/2017 #29 Phil Friedman#24 No, Peter, you're not just saying. Your seeking to build a straw man argument by assuming a definition of "value-engineering" that serves your own purposes.
To wit, a commonly accepted definition of value engineering is, "Value engineering (VE) is a systematic method to improve the "value" of goods or products and services by using an examination of function. Value, as defined, is the ratio of function to cost."
The particular example I chose here illustrates the performance of a particular operation necessary during the construction of a high-tech military vessel, under a NAVSEA government contract, at a cost far below what was expected or budgeted. Sorry, if that strikes you as too mundane to be of interest, but frankly that is the reaction of a writer who talks about such things, not that of anyone who is a shop-floor veteran, engineer or otherwise. In this context, I am happy to ...
Cheers!03/08/2017 #25 Anonymous#24 Just guess Peter, I could write an article on how to fight against hydrogen embrittlement and the environmentally-enhanced cracking of military equipment, including naval ships and fighter. This seems like a very important technological breakthrough, but it is not. Social media is not the ground for such "so-impressive value-engineered solution". Finally, an article like this one by Phil has great practical value and certainly represents a practical and useful example of a successful engineering in a specific field. Science and engineering are not only in national laboratories and large research centers. The work of engineers is also practical. Just my 2 cents.03/08/2017 #24 Peter AltschulerNah, @Phil Friedman, that ain't gonna work.
I've written about grazillions of "value-engineered solutions" that have nothing to do with any actual engineering. It's one of those, well... marketing phrases intended to make something seem oh-so-impressive.
It could be about improving operations with new technology that is engineered to simplify interactions, accelerate transactions, and improve productivity because, yes, it's value is engineered-in. Or about a ship whose hull design is so advanced that it slips through water with less drag than a dolphin and, as a result, uses less fuel, increases speed, and reduces onboard manhours, all due to the fact that it's value-engineered.
I'm just sayin'.03/08/2017 #23 Phil Friedman#8 Thanks, @Todd Jones, for reading and the kind words. Plugs for the intake holes were placed in the female tool by working from the CAD drawings. A male plug placed in a female tool leaves a hole in the molding when it is removed from the tool. Same for the waterjet drives, which were inserted through holes in the transom. We built special purpose alignment jigs for the intake grates which had a vertical spike that extended up into the hull and which had to kiss a laser light beam from a jig on the transom in order for us to know that the waterjet units could be buckled up to the intake ducts/grates.
A lot of measuring, laser projecting, etc. However, you need to keep in mind that the only really tricky part was to assure that the drive would couple properly to the intake ducts because the engines were coupled to the drives via Cardan shafts (a long jack shaft with a constant velocity universal joint at each end.
I will tag you, as requested, for subsequent installments of the series. Thanks and cheers!03/08/2017 #22 Phil Friedman#17 @Lada 🏡 Prkic, much of my writing has been in the interpretation of technical material for an educated, though not necessarily technically oriented audience. I've found the effort gratifying, and my gut tells me you would too. Moreover, your English is beautify and flawless. So if you were to feel the need for a cooperating copy editor, I'd be pleased to helpin any way I could. Not pressuring you. Not pressuring you. Not pressuring you. Cheers!03/08/2017 #21 Phil Friedman#16 That's why, Graham, I believed this might have some wider appeal to even those who couldn't care less about grinding perfect flats for backing washers. In this case, I think the lesson(s) transfer to business management, as well. Thank you for reading and commenting. Cheers!02/08/2017 #19 Phil Friedman#7 Milos, I appreciate the suggestion and already planned to do so -- eventually. What I've discovered, however, is that simultaneously sharing a piece in a number of groups breaks up the "trending" stats among the group notices and tends to retard distribution in the main feed. (LI worships trending and so gives better distribution to what the Algirithm sees as more popular articles.)
So better to wait for sharing into groups until the initial rush of views and likes is complete and the piece sits on the LI "long tail". Cheers!02/08/2017 #18 Phil Friedman#14 Except, @Peter Altschuler, that would not satisfy those who tend to start reading at the end in an effort the glean the crux without the work of reading through the piece.
Oh, and BTW, with all due respect, what is not clear about my deck and preface which said: "THE FIRST IN A SERIES OF RETROSPECTIVES THAT LOOK BACK AT THREE DECADES OF FINDING VALUE-ENGINEERED SOLUTIONS ... This article begins a series that looks back at various value-engineered solutions to problems encountered by the author in the course of several decades of boat and yacht building and shipyard management. "?
Anyway, thanks for reading and commenting. Cheers!
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- 24/06/2017► In Search of the Civil Engineers on beBee ◄
The civil engineers' community on beBee is not much active. That's why most of my activities related to civil engineering are on LinkedIn.
I would like to know how many of us are active on beBee, and willing to engage and discuss the topics related to civil engineering.
If you are interested, please do say so in the comment section.
(Image by Bpress - For Construction & Builders)
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Comments29/04/2017 #3 Lada 🏡 PrkicAstana je grad sam po sebi čudo, koji je izgrađen vizijom jednog čovjeka i uz pomoć najpoznatijih svjetskih arhitekata. Nigdje nema toliko čudnih struktura na jednom mjestu. Sajamski grad će samo upotpuniti sliku Astane po tom pitanju.
Uvijek mi je drago pročitati tvoje članke u Građevinaru, Anđela. :-)
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- 07/04/2017Australian experts found a way to incorporate cigarette butt waste into brick making that not only gets that waste out of the environment, but it also makes cheaper and less energy-intensive bricks. When cigarette butts are added to clay bricks, the energy needed to fire them was cut by up to 58 percent. The bricks were lighter and were better insulators, too, meaning they could help cut household cooling and heating demands, all while keeping the same strong properties of traditional bricks.
Comments07/04/2017 #5 Ken BoddieCan't say I've heard of this brick additive concept before. Sounds a great idea, Andela, although It probably needs one of the main brick companies to get on board, along with a means of readily gathering discarded butts, before it'll get wings. Thanks for the tag, @Lada 🏡 Prkic and @Praveen Raj Gullepalli.
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