Escrito por  2016-09-21

Pontes e viadutos que imitam natureza podem ser indestrutíveis

(0 votos)

A professora Wanda Lewis, da Universidade de Warwick, no Reino Unido, levou ao próximo nível um processo de design inspirado no mundo natural.

Um nível que promete nada menos que uma nova geração de pontes, viadutos e outras estruturas virtualmente indestrutíveis.

O processo de design é conhecido como "busca pela forma", ou "geração de forma" (form-finding). Ele permite a concepção de estruturas rígidas que seguem uma forma natural, ou seja, estruturas que são sustentadas por uma força pura de compressão ou tensão, sem tensões de flexão, que são os principais pontos de fraqueza nas estruturas feitas pelo homem.

Essa técnica poderá, pela primeira vez, viabilizar o projeto de pontes e edifícios que arquem com qualquer combinação de carga permanente sem gerar tensões complexas, o que lhes daria maior segurança e maior durabilidade.

Estruturas projetadas pela natureza

A estrutura de uma árvore ou mesmo de uma folha, a curvatura de uma concha, a forma como um filme de sabão se sustenta em grandes vãos, são todos exemplos de projetos naturais de grande eficiência e resistência.

A professora Lewis desenvolveu agora modelos matemáticos que analisam esses princípios da natureza e geram padrões de estresse simples para cada estrutura. Os princípios que sustentam os modelos matemáticos são ilustrados usando experimentos de "geração de forma" que envolvem peças de tecido ou correntes.

Um pedaço de tecido, por exemplo, é suspenso e então relaxa na sua forma natural de energia mínima, puxado apenas pela gravidade. Em seguida, sua forma final é congelada em um objeto rígido, e então invertido. Isto produz uma forma natural - gerada unicamente pela ação da gravidade - que pode suportar cargas com grande eficiência.

Estética arquitetônica

Talvez não saia ao gosto dos olhos dos arquitetos, mas as formas resultantes têm uma resistência que não encontra equivalentes nos conceitos de engenharia convencionais.

"A estética é um aspecto importante de qualquer projeto, e nós fomos programados para ver algumas formas, como arcos circulares ou cúpulas esféricas, como estéticas. Nós frequentemente as construímos independentemente do fato de que elas geram tensões complexas, e são, portanto, estruturalmente ineficientes," defende Lewis.

socialshare

share on facebook share on linkedin share on pinterest share on youtube share on twitter share on tumblr share on soceity6

1305 comentários

  • Buddy

    Appreciate the recommendation. Let me try it out.

    Link do comentário Quarta, 16 Agosto 2017 07:17 postado por Buddy
  • cheap car insurance Henderson KY

    Srs., Não sou candidata, mas compartilho meu apoio! Também luto em prol da Educação Aberta, Cultura, Diversidade, Inclusão, Valor Humano e Desenvolvimento Sustentável&posso repassar, tenho bom contatos com a Sec. do Meio Ambiente e Educação de SP. Excelente iniciativa, meus parabéns! Um abraço.

    Link do comentário Quarta, 16 Agosto 2017 06:08 postado por cheap car insurance Henderson KY
  • list of car insurances in Durham NC

    Today, while I was at work, my cousin stole my apple ipad and tested to see if it can survive a 40 foot drop, just so she can be a youtube sensation. My iPad is now broken and she has 83 views. I know this is totally off topic but I had to share it with someone!

    Link do comentário Quarta, 16 Agosto 2017 03:13 postado por list of car insurances in Durham NC
  • cyzssnmht

    Pontes e viadutos que imitam natureza podem ser indestrutíveis
    acyzssnmht
    [url=http://www.gnm2t7q9390l83b4h4g5e4nw1r712tmls.org/]ucyzssnmht[/url]
    cyzssnmht http://www.gnm2t7q9390l83b4h4g5e4nw1r712tmls.org/

    Link do comentário Quarta, 16 Agosto 2017 00:03 postado por cyzssnmht
  • studentnet.ge

    Easy n Quick Online Medical Playing cards Renewals California.
    Comprehensive baseline historical past or a physical report,
    diagnostic test outcomes, consult studies, progress
    notes, remedy records, problem listing, allergy documentation, telephone/communication log, immunization records, preventive health screening information, inpatient/ER discharge abstract reports, or operative
    studies. In San Diego County, as an illustration, medical marijuana ID playing cards price about $166 per yr, and about half that charge,
    or $eighty three for Medi-Cal sufferers. For those who select to submit
    the Medical Marijuana Program Software/Renewal Type
    to obtain a MMIC (versus utilizing a written physician's
    advice) there's an related charge.

    The title and phone variety of the county program that authorised
    your utility. Once you really get to the purpose
    where you get your documents renewed, you normally do not want a full analysis, and the whole process goes by extremely fast, making the online possibility rather more favorable for most sufferers.
    These states typically have a very small number of
    people that have obtained state authorization. The photo, caregiver
    standing, Medi-Cal status of the affected person,
    and Medical Marijuana ID expiration date can be despatched to the State of California by way of
    a safe web page. Our medical doctors are licensed with the state medical board.


    He is built a reputation as a compassionate, caring physician and is now putting his expertise to work
    serving to patients get reduction from a variety of
    ailments by recommending medical marijuana.
    On the expiration of the licenses it is recommended that patient explore a web-based medical card renewal online - they'll
    go to The online is gaining much popularity because it's an easier and more handy method.
    Humboldt County sufferers have been rising medicinal
    marijuana of their very own for years. GreenLeaf Care focuses
    on providing medical marijuana prescriptions & suggestions, treatment plans, patient verifications and
    ID playing cards.

    The affected person or caregiver can expect a card from
    the state about two weeks after the interview. This is to verify info
    on the Application/Renewal Form. You'll be able to
    ALWAYS provide complete proof - to law enforcement
    or anyone else - that you simply were evaluated and obtained
    a recommendation - by a licensed physician - to legally possess and use Medical
    Marijuana - below California Well being and Security Code Part 11362.5, Prop 214 and SB
    420. Medical Marijuana Card Physician specializes in medical hashish
    evaluations, recommendations, renewals and growers licenses.
    EazeMD has also lowered the price to $25 and diminished
    the time it takes to minutes so those without a marijuana card, but in need” of medicine” at, say,
    a pal's house on Saturday evening around 11, can dial up a number of available
    medical doctors on EazeMD and start chatting.

    In other words, you only pay the evaluation fee if you're authorized.
    The physician was fabulous and the staff was very pleasant, I will suggest this clinic to many.
    Application packets embrace: details about SB 420 and the County ID Card Program,
    Steadily Asked Questions and, the Medical
    Marijuana Picture ID Card Application. Basically though, in line with Well being and Safety
    Code Section 11362.seventy seven , certified sufferers or caregivers can possess
    as much as 8 ounces of dried marijuana at a time and
    develop not more than 6 mature or 12 immature vegetation. Since then 17 other states have
    followed swimsuit, spelling out their own terms
    for who can and can't use the legalized drug, how
    they'll obtain or develop it, and how a lot it prices them to do so.
    Most states authorize users by issuing them a card.


    To help firms make enhancements in their products and services.
    How Do I Get A Medical Marijuana Card Renewal: On-line
    420 Evaluations California. We have the best pricing and fastest service on medical marijuana suggestions
    in California. Patients even have the option of renewing their
    card along with their rec, so they can get all of it finished in one go.

    The entire service is offered for the same low price of $39, and patients can do it from the comfort
    of their very own dwelling. You will have to fill out an Utility/Renewal Kind You should reside in Orange County when the application is
    submitted. In case you're fortunate enough to dwell in California, save yourself
    a while and problem by getting your ganja the easy means.



    A: We provide two forms of Suggestions; each embody the plastic ID card
    at no additional cost. Nevertheless, he has utilized all the greatest principles from every medical marijuana doctors
    office into his personal follow with the Hollywood Easy Clinic.
    Our California legal legislation workplaces are positioned in and
    around Los Angeles, Orange County, San Diego, Riverside, San Bernardino,
    Ventura, San Jose, Oakland, the San Francisco Bay area, and several other close by
    cities. Whether or not you wish to get a new cannabis
    card, renew your card, otherwise you just need a web based medical marijuana analysis, this page is precisely for you!



    PureCann Santa Cruz CA marijuana docs, playing cards, evaluations, & recommendations.
    By taking an individualized approach to cannabis 420 evaluations and
    drugs, PureCann Santa Cruz Medical Marijuana Doctors certainly separates itself from the remainder of its competitors.

    You too can give us a name when you have questions concerning the process in San Francisco
    and we'll do our greatest that can assist you out!

    We extremely suggest that you make an appointment on our website earlier than you
    come into our workplace so as to drastically velocity up the ready course of.

    Our medical marijuana doctors are here to assist consider you and offer you relief at our marijuana analysis centers.


    If you are not glad with our services or if you are not accepted, your analysis is FREE.
    Bonus: should you use NuggMD to get your doctor's recommendation, you'll immediately be credited with $20 to order delivery by
    way of ! It is going to be essential for you to get hold of
    new medical documentation, until the document you've gotten remains to be valid.
    Sufferers' data are strictly confidential and are protected by federal and state law.
    To your analysis carry a valid California ID, your previous advice or medical data for
    brand spanking new sufferers. In most states with medical marijuana card applications, the card is legitimate for up to 12 months and may be renewed quotation needed Authorized states even have completely different necessities for acquiring a medical marijuana card.



    We use thick, 30 Mil PVC, card stock to supply durable and lengthy-lasting hashish playing cards.
    When Proposition 215 and the California Senate Bill 420 had been established in the state
    of California, all doctors with a California medical board license became in a position to recommend marijuana
    for medical use to any patients suffering from medical conditions which might be treatable with cannabis.

    Medical Marijuana sufferers with a letter of recommendation from a health
    care provider to consume medical marijuana may
    nonetheless be breaking the law and denied their
    medicine by their native dispensary as a result of their
    Medical Marijuana Physician doesn't have a fictitious name submitting with the California Medical Board.


    PureCann will accept a Santa Cruz CA medical marijuana card renewals from any physician's clinic.
    The appliance is complete, including doctor's and primary caregiver's sections.
    In a thoughts-blowingly short amount of time, you will get your official documentation that may will let you order from close by medical marijuana delivery services, all
    for only $39. The net medical card renewal is such
    a short process which requires you to enroll by filling in your bio knowledge, add any of the latest medical report
    from your physician after which the web medical marijuana physician in poor
    health hold a short video call with so as to do an analysis.


    Hollywood Easy Clinic is on the primary ground and we are
    handicap accessible for our medical hashish patients.
    GREAT CARE: Our docs are compassionate, well-certified,
    and care about our patients. Find out how to Verify If a Medical Marijuana Clinic/Medical Marijuana Physician Is Licensed To Follow
    Medication within the State Of California. A. The Bureau has not determined the charges for the state licenses that can be issued by the Bureau.
    For brand new sufferers - converse with a health care provider, evaluate the strategies of
    t=use, kinds of strains and medicinal worth- A California Medical Cannabis card patient can visit any local dispensary in California and/ develop /
    domesticate cannabis at dwelling.

    A. In line with the Act, the Bureau might deny a license to an applicant who has been convicted of
    an offense that's considerably associated to the qualifications,
    features, or duties of the business or profession for which the applying is made.
    Written statement from their doctor MD or DO (Physician of Osteopathy licensed in California) stating that the patient has a severe medical situation and
    that medical use of marijuana would be applicable.
    What it is advisable to convey to see our hashish docs is your authorities identification and
    any medical records you have got that help your medical situation.

    A duplicate of your medical data that paperwork using medical marijuana is suitable for you.
    When California's medical marijuana patients visit marijuana dispensaries or order from marijuana supply corporations, sufferers must show they possess both a physician's
    written suggestion for marijuana use or a valid medical marijuana identification card, or MMIC.
    In case you are at present waiting over an hour
    at one other docs workplace that appears like the DMV, call and
    ask our cannabis clinic staff how straightforward it is to get a medical hashish
    card at one in every of our clinics. To confirm a patient's legal standing, a patient ID
    number is provided on the cardboard, together with a cellphone number and web site that dispensaries and
    legislation enforcement can contact instead of using the general public database on the Department
    of Public Well being's web site.

    We provide safe online and cellphone verification of card legitimacy 24 hours a day,
    7 days a week. At 420EvaluationsOnline we conduct medical cannabis evaluations to make sure you meet the requirements
    of obtaining a medical marijuana license. No employer, no government entity and no legislation enforcement agency can access your private
    info or your standing as our affected person. Its better than having them with
    a clinic that may get busted or something.
    No Appointments crucial, get a medical marijuana
    suggestion or mj certificate instantly upon approval
    by our cannabis doctor. Analysis time by the doctor too changes with the person.

    Sufferers meeting the above conditions may call Contra Costa Well being Services Public Health at
    925-313-1126 for an software and to make an appointment to use for his or
    her ID card. Medical Marijuana Card Studio City Simple Clinic by the hashish
    renewal specialists. Getting your weed card
    renewal is already really easy, however often it entails an appointment, going on an internal-city journey, sitting in a ready room with strangers,
    and all the opposite things that come along with a visit to the doctor.
    After verifying the information above, the applicant might be authorised for the Medical Marijuana ID Card Program.
    We also have have a number of medical cannabis sufferers coming to see us
    from Long Beach, Orange County and San Diego.

    You will instantly obtain an official doc to indicate your eligibility for the medical marijuana program and you
    will also have the choice of purchasing a photograph ID card.

    With an arsenal of Yelp opinions saying that the renewal process is fast, simple, and low-value, for those who're within the
    LA area, you'll be able to stop by one of their places.

    Our MJ doctors take the time to listen and help patients with a mmj advice or
    medical marijuana certificates. California Medical Board Licensed Marijuana Doctors.
    I acquired my Medical Marijuana paperwork achieved
    at 420EvaluationsOnline, it took possibly 10 minutes. http://studentnet.ge/forum//profile.php?id=111470

    Link do comentário Terça, 15 Agosto 2017 23:40 postado por studentnet.ge
  • agwf

    you are luckly!

    Link do comentário Terça, 15 Agosto 2017 15:22 postado por agwf
  • OEM plastikdele

    Pontes e viadutos que imitam natureza podem ser indestrutíveis

    Link do comentário Terça, 15 Agosto 2017 14:50 postado por OEM plastikdele
  • adidas crazy explosive

    After I initially commented I appear to have clicked on the -Notify me when new comments are added- checkbox and from now on each time a comment is added I get four emails with the exact same comment. Perhaps there is a means you can remove me from that service? Thanks!
    adidas crazy explosive http://www.adidascrazyexplosive.us.com

    Link do comentário Terça, 15 Agosto 2017 14:02 postado por adidas crazy explosive
  • affordable car insurance Fort Smith AR

    ... They get free housing, food and healthcare in Cuba and North Korea. Why can't we be more... Theft (ID). Check.Lies. Check.Total lack of original thinking. Check.Are you trying to earn your badge in Republican spin monkeying?

    Link do comentário Terça, 15 Agosto 2017 13:30 postado por affordable car insurance Fort Smith AR
  • Beats Wireless Review

    Ceara, win a 5 night trip to London! - Stace's blog
    Beats Wireless Review http://www.beatsbydrereview.org

    Link do comentário Terça, 15 Agosto 2017 12:27 postado por Beats Wireless Review

Deixe um comentário

Certifique-se de preencher os campos indicados com (*). Não é permitido código HTML.

Entre em contato conosco

Vamos falar sobre seu projeto! Clique em Contato e preencha o formulário que entraremos em contato o mais breve possível.

Contato