Mkhalidwe Wamakono Wachitukuko Chachitsulo chooneka ngati H
M'malo omwe akusintha nthawi zonse a engineering bridge, kusintha kwakukulu kukuchitika ndikugwiritsa ntchito mwanzeruMbiri ya H-beam. Mainjiniya ndi magulu omanga padziko lonse lapansi akugwiritsa ntchito zida zapadera zaH-mtengoma profiles, ophatikizidwa ndi mapangidwe apamwamba opepuka, kuti apititse patsogolo kwambiri mphamvu yonyamula katundu wa milatho - kuwonetsa nyengo yatsopano yogwira ntchito bwino, chitetezo, ndi kukhazikika pa chitukuko cha zomangamanga.
Chiyambi ndi ubwino wa zitsulo zooneka ngati H
Mbiri ya H-beam, yomwe imadziwika kuti ndi "H" yowoneka bwino, yadziwika kale chifukwa cha makina awo apamwamba kwambiri. Mosiyanambiri yakale zitsulomonga matabwa a I, matabwa a H amakhala ndi ma flanges ofananira pamwamba ndi apansi omwe amagwirizanitsidwa ndi ukonde wandiweyani, zomwe zimapangitsa kuti pakhale mphamvu yogawa bwino. Ubwino wamapangidwe awa umalola kuti matabwa a H-athe kukana kupindika ndi kugwedezeka mogwira mtima, kuwapangitsa kukhala chisankho choyenera pazinthu zonyamula katundu pamapulojekiti amilatho. Komabe, ndi kuphatikiza kwa mfundo zopepuka zopanga zomwe zatsegula kuthekera kwawo kokwanira m'zaka zaposachedwa.
"Kwa zaka zambiri, akatswiri a mlatho adakumana ndi malonda: kuti tiwonjezere mphamvu zonyamula katundu, nthawi zambiri tinkafunika kuonjezera kulemera ndi kuchuluka kwa zitsulo zomwe zimagwiritsidwa ntchito, zomwe zinakweza ndalama zomanga, zowonjezera nthawi ya polojekiti, ndi kuwonjezera kupanikizika kwa mapangidwe a maziko," adatero Dr. Elena Carter, katswiri wa zomangamanga ku Global Infrastructure Innovations (GII), kampani yotsogolera pakupanga mlatho ndi zomangamanga. "Pokhala ndi mbiri ya H-beam komanso mapangidwe opepuka, tasokoneza malondawo. Mwa kukonza magawo a H-beams - kuchepetsa zinthu zosafunikira m'malo osafunikira pomwe tikulimbikitsanso madera omwe akupanikizika kwambiri - tapanga zopepuka koma zokhoza kunyamula katundu wolemera kwambiri."
Kodi ubwino wa mapangidwe opepuka achitsulo chooneka ngati H ndi chiyani?
"Mapangidwe opepuka a matabwa a H sanangowonjezera kuchuluka kwa katundu; adasintha ntchito yonse yomanga," atero a Mark Torres, woyang'anira polojekiti ya West River Crossing Bridge. “Zigawo zopepuka zinatanthauza kuti titha kugwiritsira ntchito ma crani ang’onoang’ono, kuchepetsa kuchuluka kwa maulendo a mayendedwe okagula zinthu, ndi kufulumizitsa msonkhano wa pamalopo.” Ntchitoyi inamalizidwa milungu itatu pasadakhale nthawi imene tinakonza, ndipo tinapulumutsa ndalama zomanga pafupifupi $1.5 miliyoni.
Kupitilira pamtengo komanso kupindula bwino, kugwiritsa ntchito kwatsopano kwa mbiri ya H-beam mu engineering ya mlatho kumathandizanso kuti zolinga zokhazikika. Pochepetsa kugwiritsira ntchito zitsulo, mapulojekiti monga West River Crossing Bridge amachepetsa mpweya wa carbon womwe umagwirizanitsidwa ndi kupanga zitsulo-chinthu chofunikira kwambiri pakuyesetsa kwapadziko lonse kuchepetsa kusintha kwa nyengo. Kuonjezera apo, mapangidwe opepuka amachepetsa kukhudzidwa kwa chilengedwe cha maziko a mlatho, chifukwa kukumba pang'ono ndi konkire kumafunika kuti zithandizire dongosololi, kuchepetsa kusokonezeka kwa chilengedwe cha m'deralo.
Kukula kwamtsogolo kwazitsulo zooneka ngati H
Akatswiri azachuma akulosera kuti izi zipitilira kukula pomwe ntchito za zomangamanga padziko lonse lapansi zikuyika patsogolo kulimba mtima komanso kukhazikika. Bungwe la International Association of Bridge and Structural Engineers (IABSE) posachedwapa latulutsa lipoti lonena kutiMbiri ya H-beam yokhala ndi mawonekedwe opepukaakuyembekezeka kugwiritsidwa ntchito mu 45% yama projekiti apakatikati ndi akulu pofika 2028, kuchokera pa 15% yokha mu 2020.
"Malatho ndi msana wa maukonde oyendera, ndipo ntchito yawo imakhudza mwachindunji chuma ndi moyo watsiku ndi tsiku," Dr. Carter anawonjezera. "Kugwiritsa ntchito kwatsopano kwa mbiri ya H-beam sikungopititsa patsogolo luso laukadaulo, ndi yankho lomwe limatha kuthana ndi zovuta zomwe makampani akukumana nazo: chitetezo, magwiridwe antchito, komanso kusasunthika. Pamene tikupitiliza kukonza njira zopepuka komanso kupanga zida zolimba kwambiri za H-beam, titha kupanga milatho yanzeru, yokhazikika, komanso yogwirizana ndi mibadwo yamtsogolo."
Malingaliro a kampani China Royal Corporation Limited
Adilesi
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Foni
+ 86 15320016383
Nthawi yotumiza: Sep-02-2025