Nyumba zomangidwa ndi zitsulo zimagwira ntchito yofunika kwambiri m'mapulojekiti amakono a mafakitale, amalonda, ndi zomangamanga. Kukula mwachangu kwa mizinda ndi kukonzanso mafakitale kukupitilizabe kukweza kufunikira kwa machitidwe omanga ogwira ntchito bwino. Nyumba zomangidwa ndi zitsulo zimapereka mphamvu zambiri, kapangidwe kosinthasintha, komanso kayendedwe kachangu komanga. Malinga ndi World Steel Association, kugwiritsa ntchito zitsulo zomangidwa padziko lonse lapansi kumaposa matani 1.1 biliyoni pachaka.
Mitundu Yaikulu ya Nyumba Zachitsulo Zomangidwa
Kapangidwe kachitsuloNyumba zitha kugawidwa m'magulu kutengera makina olemetsa ndi mawonekedwe a malo. Kapangidwe ka mafelemu a portal kamakhalabe mtundu wofala kwambiri pa nyumba zamafakitale. Nthawi zambiri amakhala mamita 18-36 ndipo amafika kutalika kwa mamita 6-12. Mafelemu a portal amagwiritsa ntchito mizati yachitsulo yooneka ngati H ndi matabwa, zomwe zimachepetsa kugwiritsa ntchito chitsulo ndi 10-15% poyerekeza ndi makina achikhalidwe a konkriti wolimbikitsidwa.
Nyumba zokhala ndi mafelemu achitsulo okhala ndi zipinda zambiri zimatumikira nyumba zamaofesi ndi malo ogulitsira. Mipata ya mizati nthawi zambiri imakhala pakati pa mamita 6 mpaka 9. Mafelemu achitsulo amathandizira pansi pa 3–5 kN/m² yamaofesi ndi 5–7 kN/m² yamaofesi ogulitsa. Kulumikizana kolimba kumatsimikizira kukhazikika kwa mbali pansi pa katundu wa mphepo ndi zivomerezi.
Nyumba zachitsulo zomangira zitsulo zimagwirizana ndi malo akuluakulu monga malo owonetsera zinthu ndi ma hangar. Ma truss omangira ofanana amafika mamita 60–120. Kutalika kwa trus nthawi zambiri kumakhala 1/10 mpaka 1/15 ya span, zomwe zimapangitsa kuti zikhale zolimba komanso zogwira ntchito bwino. Nyumba za chimango cha malo zimathandizira kugawa katundu ndikuchepetsa kulemera kwa chitsulo ndi 20%.
Nyumba zopepuka zachitsuloZigawo zachitsulo zopangidwa ndi chitsulo chozizira zokhala ndi makulidwe a 0.8–2.5 mm zimapereka mphamvu zokwanira. Makinawa amakwaniritsa miyezo yofunikira padziko lonse lapansi.
Ubwino Waukulu wa Nyumba Zomangidwa ndi Zitsulo
Mapangidwe achitsulo amapereka magwiridwe antchito abwino kwambiri a makina. Chitsulo chomangira nthawi zambiri chimakhala ndi mphamvu zokolola za 235–460 MPa. Magiredi achitsulo olimba kwambiri monga Q355 amachepetsa kukula kwa ziwalo ndikuchepetsa kugwiritsa ntchito chitsulo chonse ndi 8–12%. Ubwino uwu umachepetsa mwachindunji katundu wa maziko ndi ndalama zomangira.
Kuthamanga kwa ntchito yomanga kudakali phindu lalikulu. Kukonzekera bwino kwa fakitale kumathandiza kuti ntchito yomanga ikhale yogwira mtima. Malo ogwirira ntchito achitsulo okhala ndi malo okwana 10,000 m² nthawi zambiri amamaliza ntchito yomanga mkati mwa masiku 30-45. Nyumba za konkriti zofanana nthawi zambiri zimafuna masiku opitilira 90. Nthawi yochepa imachepetsa ndalama zogwirira ntchito ndi 20-30%.
Nyumba zachitsulo zimagwira ntchito bwino m'madera omwe amakhudzidwa ndi zivomerezi. Zitsulo zimakhala ndi kutalika kwa kutalika kopitilira 20%, zomwe zimapangitsa kuti mphamvu zizitayika kwambiri. Pa nthawi ya zivomerezi, mafelemu achitsulo amayamwa mphamvu za zivomerezi kudzera mu kusintha kolamulidwa. Deta yochokera ku chivomerezi cha 2011 ku Japan ku Tōhoku inasonyeza kuti nyumba zachitsulo zinawonongeka pang'ono ndi 40% poyerekeza ndi nyumba zamatabwa.
Kukhazikika kumathandizanso kugwiritsa ntchito chitsulo. Kuchuluka kwa zinthu zobwezerezedwanso m'mapangidwe a chitsulo kumaposa 90% padziko lonse lapansi. Kupanga chitsulo chobwezerezedwanso kumasunga mphamvu pafupifupi 60% ndipo kumachepetsa mpweya wa CO₂ ndi matani 1.5 pa tani imodzi ya chitsulo. Nyumba zachitsulo zimathandizanso kukula ndi kusweka mosavuta, zomwe zimathandiza kuti chuma chikhale ndi phindu kwa nthawi yayitali.
Mfundo Zofunika Kwambiri Zopangira Nyumba Zachitsulo
Kuwerengera katundu molondola kumapanga maziko a kapangidwe ka kapangidwe ka chitsulo. Opanga mapulani ayenera kuganizira za katundu wofa, katundu wamoyo, katundu wamphepo, katundu wa chipale chofewa, ndi momwe zinthu zimayendera. Pa malo ogwirira ntchito m'mafakitale, katundu wamoyo padenga nthawi zambiri amakhala pakati pa 0.3 ndi 0.5 kN/m². Kuthamanga kwa mphepo nthawi zambiri kumakhala pakati pa 0.3 ndi 0.8 kN/m² kutengera malo.
Kusankha magawo kumakhudza mwachindunji chitetezo ndi ndalama. Mainjiniya nthawi zambiri amawongolera kupatuka kwa chitsulo mkati mwa L/250 ndi milingo yopyapyala ya mzati pansi pa 150. Pa mafelemu a portal, milingo yolimba ya chitsulo kuchokera pa mzati kupita pa mzati nthawi zambiri imakhala kuyambira 0.6 mpaka 0.8 kuti zitsimikizire kufalikira kwa mphindi kokhazikika.
Kapangidwe ka kulumikizana kumafuna chisamaliro chapadera. Mabotolo amphamvu kwambiri a giredi 8.8 kapena 10.9 ndi omwe amalamulira mapulojekiti amakono. Malumikizidwe osatsetseka amakwaniritsa ma coefficients akukangana a 0.45–0.55 pambuyo pokonza bwino pamwamba. Malumikizidwe olumikizidwa nthawi zambiri amagwiritsa ntchito kuwotcherera kotetezedwa ndi mpweya wa CO₂, komwe kumatsimikizira mphamvu yowotcherera yoposa 90% ya mphamvu ya chitsulo choyambira.
Kapangidwe ka chitetezo cha moto kadakali kofunikira kwambiri. Chitsulo chimataya mphamvu yake ndi 50% pa kutentha kwa pafupifupi 550°C. Zophimba zosapsa ndi moto zokhala ndi makulidwe a 2–5 mm zimatha kupereka mphamvu zopewera moto za maola 1.5–3.0. Muyeso uwu umatsimikizira kuti malamulo ambiri omanga nyumba amatsatiridwa.
Kupanga Zinthu ndi Mfundo Zowongolera Ubwino
Kapangidwe ka chitsulo chapamwamba kwambiri kamadalira kapangidwe kake kolondola. Ma plate achitsulo osaphika ayenera kukwaniritsa miyezo monga ASTM A36 kapena EN S355. Kuwongolera kapangidwe ka mankhwala kumaonetsetsa kuti mpweya wa kaboni umakhalabe pansi pa 0.25%, zomwe zimapangitsa kuti zikhale zosavuta kusungunula.
Kulondola kwa kudula kumakhudza mwachindunji ubwino wa msonkhano. Makina odulira a CNC lawi kapena plasma amawongolera kulekerera kwa miyeso mkati mwa ±1.0 mm. Pa mbale zokhuthala zopitirira 20 mm, ngodya za bevel nthawi zambiri zimakhala kuyambira 30° mpaka 35° kuti zitsimikizire kulowa kwa weld.
Ubwino wa kusonkha umatsimikiza kudalirika kwa kapangidwe kake. Osonkha ovomerezeka amatsatira njira za WPS mosamalitsa. Kuyesa kosawononga kumaphimba osachepera 20% ya mipata yoyambirira yosonkha m'mapulojekiti wamba. Malumikizidwe ofunikira nthawi zambiri amafunikira mayeso a 100% a ultrasound. Milingo yovomerezeka ya zolakwika iyenera kutsatira ISO 5817 Level B.
Kukonza pamwamba kumateteza chitsulo ku dzimbiri. Kuphulika kwa mfuti kumafika pamlingo wa Sa2.5, komwe kumachotsa zodetsa pamwamba zoposa 95%. Makina oteteza dzimbiri nthawi zambiri amakhala ndi makulidwe a filimu youma ya 120–200 μm. Kukonza kumeneku kumatsimikizira kuti nthawi yogwira ntchito imaposa zaka 25 m'malo abwinobwino a mafakitale.
Nyumba zopangidwa ndi zitsulo zimaphatikiza mphamvu, magwiridwe antchito, komanso kukhazikika kukhala njira imodzi yomanga yapamwamba. Mitundu yosiyanasiyana ya nyumba zimakwaniritsa zofunikira zosiyanasiyana za polojekiti. Kapangidwe ka sayansi komanso kupanga zinthu molimbika kumatsimikizira chitetezo ndi kulimba. Ndi mitengo yobwezeretsanso zinthu yoposa 90% komanso nthawi yomanga mwachangu, nyumba zopangidwa ndi zitsulo zipitilizabe kulamulira chitukuko cha nyumba zamakono padziko lonse lapansi.
Nthawi yotumizira: Januwale-12-2026