Yini okwenza amakhaya e-steel structure ayisiphakeme?

Ukuthinteka Kwezinkolo Zokugcina: Isibonelo Sokubukhulu Bakho Bokugcina Indawo Yokugcina Emzini Yezinkolo

Ukuthi isitili kufuna ukukhanya kuyisibonelo esikhulu kakhulu sokubaluleka kokuphakeme kwezindawo zokusebenza. Kusukela kuzo, izindlela zokuhlela isitili ezintsha zazikwenza into eyadlula ukuba yisibophezelo esikhulu kuze kube yinto enobungozi. Faka umzekelo wokugqamisa ngokugqamisa ngomoya wezinkomo. Uma isitili sifakwa emoyeni wezinkomo, kwenza ubunqwaliso obuhle obuyabona ukuthi baphinde bahlale baphatha isitili esizayo. Kunezindlela eziphuthumayo ezintsha kusuka kumakethe futhi, njengokuthi i-Galvalume Plus eyaqondana nezinkomo, iyaluminiyamu ne-magnesium emfanekisweni wokuhlela. Lezi zihlelo zokuvikela zenza izinto eziningi ngokufanekisa. Zenza isilayi esiphambili sokuvikela ukuthi amanzi, amafutha asekhanda ekhanda, nokuthi zonke izinto zokusebenza ezingavikeli. Okukhombisa ukuthi ziyasebenza kahle kakhulu kukho ukuthi zivikela ukukhanya ukuthi kuzwakala uma kunezincwadi noma iziqhamo kumthwalo, oku kuyakha kakhulu emhlabeni.

I-Galvanization kanye nezingubo ezithuthukisiwe (isb., i-Galvalume Plus) zokumelana nesimo sezulu esiphakeme

Izembozo ezenziwe ngensimbi zinikeza ukumelana nokugqwala okuye kwafakazelwa, kodwa izinhlanganisela zanamuhla zinikeza ukuthuthukiswa okusheshayo. Ama-zinc-aluminium-magnesium formulations akha izingqimba ze-oxide eziqinile, eziziphilisa ngokwazo ezinciphisa amazinga okubola ngo-50% kuya ku-90% uma kuqhathaniswa ne-standard galvanization ekuhlolweni okusheshisiwe kwe-salt-fog. Lokhu kuhumusha ukuqina kwezwe langempela:

Lobu buchwepheshe benza kube nokwenzeka ukwakha izakhiwo zensimbi ezindaweni eziyingozi ezisogwini noma ezindaweni ezichayeka kumakhemikhali lapho insimbi engacutshungulwa ingase ingahambi kahle emashumini eminyaka. Ukumelana nokugqwala kokumboza kumelana nokujikeleza kokushisa nokuwohloka kwe-UV, okuqinisekisa amashumi eminyaka okusebenza okuncane.

Ukuthi Yini Ukuthintana Kwezinkinga Zokubhakisha Kwemithambo Yokugcina Ithimba Ngokupheleleyo Kusinika Isikhathi Sokusebenza Esingama-40–70 Nangaphezulu Kuze Kube Ngezindawo Zokugcina Ezisemthwakathini

Izibonelo zomhlaba zibandakanya lezi zizindlela zokuthi ukusebenza kuyaphila. Abasebenzi bezindawo zokugcina eNorth America bakhuluma ngokufanayo ngamathimba athi ayisebenza kahle emva kwezinsuku zama-45, futhi abadinga kuphela ukuzilungisa okungenani ngenye ngenye. Uma sibheka lokho okubalulekile kakhulu ngemuva kwesikhathi, ukubhakisha kwemithambo kubhekisa isikhathi sokusebenza kunezimilo zokuphila eziningi. Ithimba eliqondile lapho lisukile kuzo zonke izinkinga zokubhakisha akasuka kusula umkhawulo wemithambo noma ukungafanele kwezinkampani ezikwenza ukuthi kubuyiselwe kabusha njengoba kubonwa kwezindawo zokugcina zethimba noma zezincili. Lokhu kukhona kubhekisa ukuthi ithimba elihlanganisiwe ngaphambi kwezinye izinto kuyisikhathi esifanele kakhulu kuzindawo zokugcina ezisukela ama-50 nangaphezulu. Izinombolo zibandakanya lokhu futhi: ngokwesibonelo, ngama-80% yezindawo zokugcina zethimba ezihlakaniphiwe kuyabuyiselwa noma kuzilungiswa kabusha endaweni yazo emva kwezinsuku zama-30.

Ukuphila Kwesithembiso Ngemilayezo Yezinhlobo Zokuhamba Kwemilayezo Yezindawo

Isilinganiso Samandla Nesisindo Nokumelana Neqhwa, Umoya Nezivunguvungu

Isilinganiso esivelele sokuma kwesakhiwo sensimbi nesisindo saso senza onjiniyela bakwazi ukuklama izakhiwo zensimbi ezingamelana nemizamo eyingozi kakhulu yemvelo ngezinto ezincane. Ngokungafani nokhuni noma ukhonkolo, izingxenye zensimbi ezenziwe ngaphambilini zingalinganiswa ngokunembile ukuze zilawule imithwalo enamandla evela:

• Ukuqunjelwa kweqhwa : Ukubalwa kwemithwalo yophahla edlula ama-40 psf (ama-pound nge-foot square) ezindaweni ezinamaqhwa amaningi.
• Umoya onamandla : Ukuvuthwa komoya ngaphezu kuka-150 mph, kubalulekile ezindaweni ezisogwini nasezindaweni ezihlaselwa iziphepho.
• Umsebenzi wokuzamazama komhlaba : Izixhumanisi eziqinile ezihlwanyela amandla phakathi nokuzamazama komhlaba, okunciphisa ukulimala kwesakhiwo.

Lokhu kuvumelana nezimo kuvela ekuziphatheni kwensimbi okwazi ukubikezelwa ngaphansi kwengcindezi, okuvumela imiklamo elungiselelwe ehlangabezana noma edlula amazinga e-ASCE 7-22. Ukuhlaziywa okwenziwa yi-Structural Engineering Institute ngo-2023 kwabonisa ukuthi izakhiwo zensimbi eziyinkimbinkimbi zikhuthazelela ukulayishwa kweqhwa kangcono izikhathi ezingu-2.8 kunezakhiwo ezenziwe ngokhuni.

Izibonelo zesikhalazo: Ukusebenza kwezindawo zokugcina izinto ezisemaphandleni esikhathini sokuphuma kwesithunzi seGulf Coast

Emva kokuphuma kwesithunzi seIan (2022), i-FEMA yasayinisa ukuthi izindawo zokugcina izinto ezisemaphandleni eGulf Coast zazisenza:

• ukuphila kwesikhathi sokubona kwezindawo zokugcina izinto ezisemaphandleni ngamakhulu amashumi ayisithupha kunye nesikhombisa (98%) , ngakho-ke ngamakhulu amashumi ayisithupha kunye nesikhombisa (63%) kwezindawo zokugcina izinto ezisemaphandleni esizimbaneni.
• ukuphela kwesikhathi sokubona kwezindawo zokugcina izinto ezisemaphandleni ngamakhulu amashumi ayisikhombisa (73%) , ngakho-ke ngamakhulu amashumi ayisikhombisa (73%) kwezindawo zokugcina izinto ezisemaphandleni esingqondweni.
• Ukungabikho komkhakha wokuphambuka kwezindawo zokugcina izinto ezisemaphandleni (≤1.5 inches) nakuba kunezinye zezigwinya zokuphambuka ngamakhulu amashumi ayisikhombisa (130+ MPH).

Lokhu ukusebenza kuhlanganisa ngqo nezinkundla zokungabi nempilo zokufa kwezindawo zokugcina izinto ezisemaphandleni futhi nezindlela zokusiza kwezindawo zokugcina izinto ezisemaphandleni, okuzosinda ukuphela kwezindawo zokugcina izinto ezisemaphandleni emva kwezinye zezigwinya ezinkulu. Izinspection zokuphuma kwezithunzi ziyasiza ngqo ukuthi izindawo zokugcina izinto ezisemaphandleni ezenziwa ngokuphelele ziyasebenza ngokuphelele nakuba kunezindawo ezinye zokugcina izinto ezisemaphandleni ziyaphela ngokuphela kwezindawo ezinye.

Ukuhlanya Okwenzelwe Ngokuzenzela Ukugula Kwamadoda Nezinto Zokuchitha

Ukuhlanya Kwemifanekiso Yomkhuhlu, Umkhuhlu Wokufa, Amaphoyisa, Namadoda Othinta—Isibonelo Esikhulu Sokukhanya Isitsha Nasekonkreti

Izindawo zokugcina izimpahla zensimbi ziqhakaza ngokumelana kwazo nezingozi ezingokwemvelo ngoba zenziwe ngezinto ezingekho emvelweni. Izakhiwo ezakhiwe ngokhuni ziyabola, zibe nesikhunta, futhi zidonsele izintuthwane, kuyilapho ukhonkolo uvame ukukhulisa amagciwane ebusweni bawo futhi uyonakala lapho ungena emakhemikhali. Insimbi ayiphenduli uma imanzi, izinambuzane zizama ukuyinwaya, noma uma ihlushwa izinto ezivamile zezimboni. Lokhu kusho ukuthi abanikazi bezindawo zokugcina impahla akudingeki bachithe imali ngemithi yokubulala izinambuzane, izibulala-zikhunta, noma ukulungisa izinkinga zesakhiwo ngokuphindaphindiwe. Ucwaningo lubonisa ukuthi izitolo ezinesakhiwo sensimbi zihlala zingashintshiwe cishe ngama-72% uma ziqhathaniswa nezokhuni ngemva kweminyaka engamashumi amabili zisetshenziswa. Njengoba insimbi ingakhathazwa yizinambuzane eziyifaka kuyo noma amanzi abangela ukubola, lezi zakhiwo zihlala isikhathi eside kunezinye. Abaphathi bezindawo zokugcina impahla bayazuza kulokhu kuqina njengoba imisebenzi iqhubeka kahle ngisho nasezimweni zezulu ezihlukahlukene nezindawo ezinzima ngaphandle kokuphazamiseka njalo ngenxa yokulungiswa.

Ukubhalwa, Ubukhulu Bekhombelelo, Nokuphatha Okuphambili Ngokwezinye Izindlela Zokuphatha I-Isikhathi Sokusemthwakathini

Izinhlobo ZesiStilhe Ezifanayo Ne-ASTM Nokugcina Okuphambili Kwemithambo Kuyinika Ukungafani Nokufa

Lapho abakhi besebenzisa izinsimbi eziqinisekiswe yi-ASTM, bathola izinto ezigcina amandla okudonsa, ukuqina okuhle, nokumelana nokugqwala okuqinile okubaluleke kakhulu ezingxenyeni ezidinga ukubamba isisindo. Ukuxhumana phakathi kwalezi zingxenye nakho kubalulekile. Ukuhlangana okuhlanganisiwe nama-welding afanele kusakaza ukucindezeleka okungokwengqondo ukuze kungabikho ndawo lapho izinto zingase ziphuke khona kuqala. Lezi zindawo ezibuthakathaka yizo kanye lapho le mikhawulo emincane iqala khona ukwakheka ngokuhamba kwesikhathi. Ukukhathala kwensimbi kuseyisizathu esiyinhloko sokuthi izakhiwo zishabalale lapho zikhuthazwa ukunyakaza njalo noma imithwalo ephindaphindwayo. Ngokwesibonelo, cabanga ngezikhungo. Izakhiwo ezakha ngensimbi ye-ASTM A572 Grade 50 zivame ukuguqulwa kancane ngamaphesenti angu-40 ngemva kweminyaka eminingi zilayishwa kanyekanye uma ziqhathaniswa nezakhiwo ezakhiwe ngezinto ezingahlangabezani nalezi zindinganiso.

Ukuqonda Idatha: Ukulungiswa Okuhleliwe Kwehlisa Amaphutha Esakhiwo Ngo-3.2x Ngemva Kweminyaka Engu-25

Ukuphatha isikhathi ngokuphambana kusobala kubhekisele kugcine ukunciphisa amaphutha. Ukuqondisa kwezindustria kubonisa ukuthi izindawo zokugcina ezenza izimboni zezinsuku zombili nangokuthintana ngokuphambana kubona amaphutha okukhula emthwakathini- njengezinkampani zokuvalela noma ukungena kwemithwakathi- ezingu-3.2 ngaphansi kweminyaka eyisikhombisa yokuqhubeka. Izindlela eziphambili zivela ku:

• Ukufaka kabusha kwezinkampani zokuvikela ukuchitha ngonyaka yeshumi
• Ukubonisa ukuthi inkampani yezinkampani ezingcono ziyakhuluma ngokuphelele
• Ukucisha kwezinkampani zokususa amanzi ukuze ukungavunyelwe ukuthi amanzi ayizwe

Le ndlela yekheli yenzuzela izinto ezincinci ngaphambi kokuthi zihlukane, ekhulisa iminyaka yokusebenza ngaphezu kwezinyaka ezingu-50—nangaphandle kwezindawo zokugcina eziphakeme kwezandla zokuhlaba.

Imibuzo Evame Ukubuzwa

Uyiphi i-Galvalume Plus?

I-Galvalume Plus yinkampani yokuvinjwa eyenziwa ngokudibanisa i-zinc, i-aluminum, ne-magnesium ukuze ibe nemiphilo yokuvinjwa kanye nokuvikela ukuchitha kwezinkampani zokugcina.

Ukuvikela ukuchitha kuyakwenza kanjani ukuthi indawo yokugcina yezinkampani zokugcina ibe yinhloko?

Ukuvikela ukuchitha kuvikela ukuthi amaphutha aya kusuka kanye nokuchitha komthwakathi, ekhulisa iminyaka yokusebenza yezindawo zokugcina zezinkampani kuma-40–70+ iminyaka.

Ukuphatha isikhathi esifanayo kusenza kanjani ukuthi izindawo zokugcina amasimbi zizwe ngaphandle kweminyaka engu-50?

Ukuphatha isikhathi esifanayo kunakha ukunciphisa izinkinga zokubuka ngamathathu nokubili, okunakeza ukusebenza kwendawo yokugcina ngaphezulu kwezinyaka zingu-50.