Umahluko phakathi kokuqengqeleka okushushu nokuqengqeleka okubandayo ikakhulu bubushushu benkqubo yokuqengqeleka. "Ukubanda" kuthetha ubushushu obuqhelekileyo, kwaye "ubushushu" kuthetha ubushushu obuphezulu. Ngokwembono yesinyithi, umda phakathi kokuqengqeleka okubandayo nokuqengqeleka okushushu kufuneka wahlulwe ngobushushu bokuphinda kusetyenziswe. Oko kukuthi, ukuqengqeleka ngaphantsi kobushushu bokuphinda kusetyenziswe kukuqengqeleka okubandayo, kwaye ukuqengqeleka ngaphezulu kobushushu bokuphinda kusetyenziswe kukuqengqeleka okushushu. Ubushushu bokuphinda kusetyenziswe isinyithi yi-450-600 ℃.
Oku kulandelayo sisishwankathelo seempendulo zemibuzo malunga [nomahluko phakathi kwe-hot rolling kunye ne-cold rolling]:
Umahluko phakathi kokuqengqeleka okubandayo kunye nokuqengqeleka okushushu ikakhulu bubushushu benkqubo yokuqengqeleka. "Ukubanda" kuthetha ubushushu obuqhelekileyo, kwaye "ubushushu" kuthetha ubushushu obuphezulu. Ngokwembono yesinyithi, umda phakathi kokuqengqeleka okubandayo kunye nokuqengqeleka okushushu kufuneka wahlulwe ngobushushu bokuphinda kusetyenziswe. Oko kukuthi, ukuqengqeleka ngaphantsi kobushushu bokuphinda kusetyenziswe kukuqengqeleka okubandayo, kwaye ukuqengqeleka ngaphezulu kobushushu bokuphinda kusetyenziswe kukuqengqeleka okushushu. Ubushushu bokuphinda kusetyenziswe isinyithi yi-450-600 ℃
Ukuqengqeleka okushushu kunye nokuqengqeleka okubandayo ziinkqubo zokwenza iipleyiti zentsimbi okanye iiprofayili, ezinefuthe elikhulu kwisakhiwo kunye neempawu zentsimbi. Ukuqengqeleka kwentsimbi ikakhulu kukuqengqeleka okushushu, kwaye ukuqengqeleka okubandayo kusetyenziswa kuphela ukuvelisa intsimbi encinci kunye nepleyiti encinci. Ii-ingots okanye iibhilethi kunzima ukuziguqula nokuzilungisa kubushushu begumbi. Ngokubanzi, zifudunyezwa ukuya kwi-1100-1250 ℃ ukuze ziqengqeleke. Le nkqubo yokuqengqeleka ibizwa ngokuba yi-hot rolling. Ubushushu bokugqibela bokuqengqeleka okushushu ngokubanzi yi-800-900 ℃, kwaye emva koko ipholiswa emoyeni, ngoko ke imeko yokuqengqeleka okushushu ilingana nonyango oluqhelekileyo. Uninzi lwentsimbi luqengqeleka ngokuqengqeleka okushushu. Ukuqengqeleka okubandayo kubhekisa kwindlela yokuqengqeleka yokukhupha intsimbi kunye nokutshintsha imo yentsimbi ngoxinzelelo lwemiqolo kubushushu begumbi. Nangona inkqubo yokucubungula iya kwenza ipleyiti yentsimbi ifudumale, isabizwa ngokuba yi-cold rolling.
Olu xwebhu luchaza iimeko zobuchwephesha zokuhanjiswa kwamandla aphezulu kunye nokumelana nemozulu, iintsimbi ezifakwe umbane ezifakwe umbane kunye neentsimbi ezifakwe umbane ezifakwe umbane ezibandayo ezenziwe ngentsimbi ebandayo, ezikwiifom ezijikelezileyo, ezisikwere, ezingxande okanye ezi-elliptical, kwaye zenziwe zibanda ngaphandle konyango lobushushu olulandelayo ngaphandle konyango lobushushu lomgca we-weld. INOMBOLO 1 Iimfuno zokunyamezelana, ubukhulu kunye neepropati zecandelo zingafumaneka kwi-EN 10219 2. INOMBOLO 2 Ingqwalasela yabasebenzisi itsalelwa kwinto yokuba nangona iiklasi ezenziwe zibanda kolu xwebhu zinokuba neepropati zoomatshini ezifanayo neeklasi ezigqityiweyo ezishushu kwi-EN 10210 3, iipropati zecandelo zecandelo ezisikwere nezingxande ezingenanto kwi-EN 10219 2 kunye ne-EN 10210 2 azilingani. INOMBOLO 3 Uluhlu lweeklasi zentsimbi luchazwe kolu xwebhu kwaye umsebenzisi unokukhetha inqanaba elifanelekileyo kakhulu kwiimeko zokusetyenziswa kunye nenkonzo ezicetywayo. Iindidi kunye neempawu zoomatshini, kodwa kungekhona imeko yokugqibela yokubonelela kweendawo ezibandayo ezenziwe ziingxondorha ngokubanzi ziyafana nezo zikwi-EN 10025 3, EN 10025 4, EN 10025 5, EN 10025 6, EN 10149 2 kunye ne-EN 10149 3.
EN 10210-3-2020
Isinyithi esigqityiweyo esishushu esiqediweyo sinendawo engenanto- Icandelo 3: Iimeko zobuchwephesha zokuhanjiswa kweentsimbi ezinamandla aphezulu kunye nezingamelaniyo nemozulu
Olu xwebhu luchaza iimeko zobuchwephesha zokuhanjiswa kwamandla aphezulu kunye nokumelana nemozulu, angenamthungo, afakwe ngombane kunye namacandelo esinyithi afakwe kwi-arc afakwe kwi-arc afakwe kwi-arc arc adibeneyo aneefom ezijikelezileyo, ezisikwere, ezingxande okanye ezi-elliptical. Lusebenza kwiindawo ezingenanto ezenziwe zishushu, ezinonyango lobushushu olulandelayo okanye ezingenalo, okanye ezenziwe zibanda ngonyango lobushushu olulandelayo olungaphezulu kwama-580 °C ukuze kufunyanwe iipropati zoomatshini ezifanayo nezo zifunyenwe kwimveliso eyenziwe ishushu. INOMBOLO 1 Iimfuno zokunyamezelana, ubungakanani kunye neepropati zecandelo zichazwe kwi-EN 10210-2. INOMBOLO 2 Ingqwalasela yabasebenzisi itsalelwa kwinto yokuba ngelixa iiklasi ezenziwe zibandayo kwi-EN 10219-3 zinokuba neepropati zoomatshini ezifanayo neeklasi ezigqityiweyo ezishushu kweli xwebhu, iipropati zecandelo zecandelo ezingxande nezisikwere kwi-EN 10210-2 kunye ne-EN 10219-2 azilingani. INOMBOLO 3 Uluhlu lweeklasi zezinto luchazwe kweli xwebhu kwaye umsebenzisi unokukhetha inqanaba elifanelekileyo kakhulu kwiimeko zokusetyenziswa kunye nenkonzo ezicetywayo. Iindidi kunye neempawu zoomatshini zamacandelo angenanto agqityiweyo ngokubanzi ziyafana nezo zikwi-EN 10025-4, EN 10025-5 kunye ne-EN 10025-6. INOMBOLO 4 Iimfuno zamacandelo angenanto angenanto enziwe ngentsimbi engasebenziyo nedibeneyo ukuze asetyenziswe kwizakhiwo ezikude nolwandle zigutyungelwe kuthotho lwe-EN 10225. INOMBOLO 5 Amacandelo angenanto adibeneyo e-Spiral kulindeleke ukuba asetyenziswe ngononophelo kwizicelo ezibandakanya ukuziphatha okuguqukayo (uxinzelelo lokudinwa) njengoko, ukuza kuthi ga ngoku, akukho datha yaneleyo malunga nokusebenza kwawo.
Yazisa ukusetyenziswa okubanzi kwetyhubhu engumtya oqinileyo eyenziwe ngokubanda
Kwizakhiwo zoshishino nezoluntu zaseTshayina, ikhonkrithi eqinisiweyo ibisetyenziswa iminyaka emininzi
Umjikelo omde kunye nongcoliseko olukhulu. Kwiminyaka yakutshanje, ngempumelelo ye-hot rolledUmqadi we-Hiimveliso zeMa Steel kunye neLai Steel
Ngokwentshayelelo yemarike, ukusetyenziswa kwesakhiwo sentsimbi kushishino lokwakha kuye kwanda. Izakhiwo ezahlukeneyo zovavanyo lwesakhiwo sentsimbi, izindlu zemodeli kunye nezakhiwo ezibalulekileyo ziye zaziswa enye emva kwenye. Imigangatho kunye neenkcukacha zoyilo kunye nolwakhiwo nazo ziqalile ukungena kwinqanaba lokuphucula kancinci kancinci. Ishishini lesakhiwo sentsimbi laseTshayina lenze inkqubela phambili enkulu kwiminyaka yakutshanje.
Nangona kunjalo, okwangoku, izakhiwo zentsimbi zokwakha zaseTshayina zisetyenziselwa ikakhulu intsimbi egoqwe ngobushushu obuyi-H kunye nezakhiwo ezahlukeneyo zentsimbi edityanisiweyo. Umthamo wentsimbi egoqwe ngobushushu obuyi-H eTshayina ufikelele kwizigidi ezi-3 zeetoni, kwaye imveliso yentsimbi ekhaphukhaphu ebuyi-H kunye nezakhiwo ezahlukeneyo zentsimbi nayo ingamakhulu amawaka eetoni. Imveliso yemibhobho edityanisiweyo eTshayina ingaphezulu kwezigidi ezi-7 zeetoni ngonyaka, apho imveliso yeimibhobho yesikwere neyengxande eyenziwe ngokubandakwaye izakhiwo ezahlukeneyo zentsimbi ezibandayo zokwakha izakhiwo zentsimbi zingaphantsi kwe-5% yemveliso iyonke yentsimbi ebandayo. Ukusetyenziswa kwentsimbi ebandayo kwizakhiwo zentsimbi zemizi-mveliso nezaseburhulumenteni eTshayina kukwinqanaba lokuqala. Umbhobho odibeneyo wesikwere kunye noxande wesakhiwo esibandayo usandula ukuqala ukuthatha indawo yentsimbi egoqwe ngobushushu efana ne-H njengekholamu yesakhiwo sentsimbi. Ezinye intsimbi ezibandayo azisetyenziswa kakhulu kushishino lokwakha.
icandelo lentsimbi ye-yuantai elingenanto ye-crane,icandelo elingenamthungo le-yuantai,icandelo elingenanto lesikwere se-yuantai
Okwangoku, iSebe lezoKwakha lakhe izakhiwo zovavanyo lwesakhiwo sentsimbi kwizakhiwo zoshishino nezoluntu, ezifana
Izindlu ezimbini zokubonisa izakhiwo zentsimbi zeSebe lezoKwakha zakhiwa eTianjin ngo-2002. Imibhobho yentsimbi yasetyenziswa kule projekthi.
Isakhelo sekhonkrithi yentsimbi yesakhelo sentsimbi yesakhelo sentsimbi yesakhelo sekhonkrithi eqinisiweyo (i-SRC), indawo iyonke yeprojekthi
I-8000m2, umzimba oyintloko unemigangatho elishumi elinanye, ikholamu enye yenziwe ngepayipi ejikelezayo, kwaye enye ikholamu yenziwe ngepayipi yentsimbi eyisikwere
I-350x350mm, ubukhulu buyahluka ngokomgangatho, apho imigangatho eyi-1~3 iyi-16mm, 4~
I-14mm kumgangatho wesi-6, i-12mm kumgangatho wesi-7 ukuya kowesi-9, i-10mm kumgangatho we-10 ukuya kowe-11, kwaye igalelwe kumbhobho wentsimbi
Ikhonkrithi ye-C40.
Umqadi wenziwe nge-I-beam edityanisiweyo ene-350x200x10x18mm, kunye ne-floor slab
Yislabhu edityanisiweyo egxininisiweyo ene-spiral rib reinforcement enamandla aphezulu. Ngelo xesha, akukho mvelisi eTshayina owavelisa iityhubhu zesikwere ezinobubanzi obukhulu kangaka, ngoko ke iityhubhu zentsimbi yesikwere zasetyenziswa kule projekthi, ezaziziikholamu ezine ze-BOX eziwelsiweyo ngepleyiti.
Iprojekthi yezindlu zokubonisa ulwakhiwo lwentsimbi yeSebe loPhuhliso lweTianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. ifumana ugqozi olubini ekusetyenzisweni kwentsimbi eyenziwe ngentsimbi ebandayo (ikakhulu ityhubhu engxande) kwizindlu zesakhiwo sentsimbi:
Okokuqala, indawo yemarike yeetyhubhu ezinkulu ezibunjiweyo ezibandayo zikhulu, kwaye inani elifanelekileyo lemigangatho yesakhiwo sentsimbi liphezulu.
Ngemigangatho eli-10-18, izakhiwo ezinjalo eziphakathi neziphakamileyo nazo zineemfuno ezithile zeenkcukacha zeetyhubhu ezibuxande ezenziwe ngokubanda.
Okwesibini, imibhobho yentsimbi eyisikwere ineenzuzo ezicacileyo kunemibhobho yentsimbi engqukuva ngezizathu ezintathu:
Okokuqala, imibhobho yesikwere nengqukuva enobude obufanayo nobubanzi obufanayo ine-bearing material engcono kunye nokusebenza kakuhle kwe-seismic
Kulungile. Ngokwesi vavanyo esenziwe yiyunivesithi eTianjin kwityhubhu yesikwere enemigangatho emithathu enezikwere ezimbini kunye nesakhelo sekholamu yekhonkrithi yetyhubhu ejikelezayo.
Ubude becala lekholamu yombhobho yi-150mm, kwaye ububanzi bombhobho ojikelezayo yi-150mm. Iziphumo zovavanyo zibonisa ukuba owokuqala uyamelana ne-lateral force yield bearing
Umthamo womthwalo kunye nomthamo wokugqibela wokuthwala uphezulu ngama-80% kune-last, kwaye i-seismic performance index iphindwe kabini kune-last;
Okwesibini, ukwakhiwa kwemibhobho yesikwere kulula ngakumbi. Ikholamu yekhonkrithi yesakhiwo sentsimbi kufuneka ibe ngaphezulu
Ukwakhiwa, icandelo elijikelezileyo litshintshwa libe licandelo lesikwere;
Okwesithathu, kunzima ukujongana nonxibelelwano phakathi kweekholamu zekhonkrithi ezijikelezayo kunye neebhari. Ulwakhiwo lwentsimbi yexesha elizayo eTshayina
Kwimarike, iityhubhu zesikwere kunye nezixande ezenziwe ngobandayo ziya kuba nesabelo esibalulekileyo.
Unyango lobushushu bomphezulu wombhobho wentsimbi lunokuphucula kakhulu umda wokudinwa komsebenzi wemveliso. Umzekelo, iteknoloji yokuqala yokucubungula i-half axle yemoto eyenziwe ngentsimbi lunyango lobushushu oluqhelekileyo, kwaye ubomi bayo benkonzo buye banda phantse amaxesha angama-20 ngokutshintsha ukusuka kunyango lobushushu bomphezulu ukuya kunyango lobushushu. Ukongeza, unyango lobushushu bomphezulu lunciphisa uvakalelo lwesithuba seendawo. Injongo yonyango lobushushu bomphezulu kukuphucula ngcono iimpawu zeemveliso. Isetyenziswa kakhulu kwiinkalo ezahlukeneyo, ezinxulumene kakhulu neempawu zazo zombini.
Ixesha lokuthumela: Disemba-21-2022
