IMfuno yeHlabathi yeSimbi soLwakhiwo: Ukunyuka kwe-ASTM A572 kunye ne-Q235/Q345 I-Beams

Kwiminyaka yakutshanje, ishishini lokwakha liye labona ukunyuka okuphawulekayo kwimfuno yentsimbi yesakhiwo, ngakumbi iiprofayili zentsimbi ezimile njenge-ASTM A572 kunye ne-Q235 / Q345. Ezi zixhobo ziyimfuneko ekwakheni izakhiwo ezomeleleyo, kwaye ukuthandwa kwazo kwimarike yehlabathi bubungqina bokuthembeka kwazo kunye nokuguquguquka kwazo.

Ukuqonda iStructural Steel

Intsimbi yolwakhiwo ludidi lwentsimbi esetyenziselwa ukwenza izinto zokwakha kwiimilo ezahlukahlukeneyo. Yaziwa ngokomelela kwayo kubunzima obuphezulu, iyenza ibe lolona khetho lufanelekileyo lokwakha izakhiwo, iibhulorho kunye nezinye iziseko. Phakathi kweentlobo ezahlukeneyo zentsimbi yesakhiwo, i-I-beams, eyaziwa ngokuba yi-H-beams okanye i-H-sections, ithandwa kakhulu ngenxa yokukwazi ukuxhasa imithwalo enzima ngelixa inciphisa ukusetyenziswa kwezinto eziphathekayo.

I-ASTM A572: UMgangatho weNtsimbi yaMandla aPhezulu

I-ASTM i-A572 yinkcazo ye-high-high-alloy low-alloy columbium-vanadium structural steel steel. Isetyenziswa ngokubanzi kulwakhiwo kwaye yaziwa ngokugqwesa kwayo ukuwelda kunye nokusebenziseka kwayo. Intsimbi ifumaneka kumabakala ahlukeneyo, kwaye iBanga lama-50 lelona lisetyenziswa kakhulu kwizicelo zesakhiwo. Amandla aphezulu esivuno se-ASTM A572 enza ukuba ilungele ukusetyenziswa kwiindawo ezifunayo, apho ukunyaniseka kwesakhiwo kubaluleke kakhulu.

I-Q235 kunye ne-Q345: Imigangatho yaseTshayina

Ukongeza kwimigangatho ye-ASTM, imarike yaseTshayina isebenzisa i-Q235 kunye ne-Q345 amabakala ensimbi, awaziwayo ngokubanzi ngenxa yamandla kunye nokuguquguquka. I-Q235 yintsimbi ephantsi ye-carbon structural steel esetyenziswa ngokuqhelekileyo ekwakhiweni, ngelixa i-Q345 i-high-high-high-alloy steel alloy steel enikezela iipropati eziphuculweyo zomatshini. Omabini amabanga ayimfuneko kwizicelo ezahlukeneyo, kubandakanywa ukwakhiwa kwezakhiwo, iibhulorho, kunye nezinye iiprojekthi zeziseko zophuhliso.

I-Global Market ye-I-Beams

Imarike yehlabathi yee-I-beams isanda ngokukhawuleza, iqhutywa kukukhula kweshishini lokwakha kuqoqosho olusakhulayo. Amazwe afana neTshayina, i-India, kunye neBrazil afumana i-boom yolwakhiwo, ekhokelela ekwandeni kwemfuno yentsimbi yolwakhiwo. Ubuninzi be-I-beams bubenza bafaneleke kwizicelo ezininzi, ukusuka kwizakhiwo zokuhlala ukuya kwiiprojekthi ezinkulu zorhwebo.

Ixabiso le-I-beams, njengaleyo yenziwe kwi-ASTM A572 kunye ne-Q235 / Q345, iye yahlala izinzile, kunye namaxabiso akhoyo emarike ajikelezayo malunga ne-$ 450 ngetoni. Oku kufikeleleka, kudityaniswe nokomelela kwemathiriyeli kunye nokuqina, kube negalelo ekudumeni kwayo kubakhi kunye neekontraka kwihlabathi liphela.

Usetyenziso lwe-I-Beams kuLwakhiwo

Imiqadi ye-I isetyenziswa kwizicelo ezahlukeneyo zokwakha, kubandakanya:

1. Izakhelo zeZakhiwo: I-I-beams isetyenziswa ngokuqhelekileyo njengento ephambili yesakhiwo kwisakhelo sezakhiwo. Ubume babo buvumela ukuhanjiswa komthwalo ngokufanelekileyo, okwenza kube yinto efanelekileyo yokuxhasa imigangatho kunye nophahla.
2. Iibhulorho: Amandla kunye nokuqina kwe-I-beams kwenza ukuba kube yinto ethandwayo yokwakhiwa kwebhulorho. Ziyakwazi ukumelana nemithwalo enzima kwaye zixhathise ukugoba kunye nokuguqulwa.
3. Ubume boShishino: Iifektri kunye neendawo zokugcina iimpahla zihlala zisebenzisa imiqadi ye-I kulwakhiwo lwazo ngenxa yokukwazi ukuxhasa oomatshini abanzima kunye nezixhobo.
4. Ulwakhiwo lweNdawo yokuhlala: Kwizakhiwo zokuhlala, ii-I-beams zisetyenziselwa ukudala iindawo ezivulekileyo kunye neendawo ezinkulu ngaphandle kwemfuneko yeekholomu ezongezelelweyo zenkxaso.

Uzinzo kunye nokuqwalaselwa kokusiNgqongileyo

Njengoko ishishini lokwakha liqhubeka nokukhula, kukho ugxininiso olukhulayo lokuzinza kunye nefuthe lokusingqongileyo. Intsimbi yesakhiwo, kuquka i-I-beams, iphinda isetyenziswe, iyenza ibe yinto ekhethiweyo yokusingqongileyo kwiiprojekthi zokwakha. Abavelisi abaninzi bamkela izenzo ezizinzileyo, ezifana nokusebenzisa intsimbi ehlaziyiweyo kunye nokunciphisa inkunkuma ngexesha lemveliso.

Imingeni kuShishino lweNsimbi

Nangona imbonakalo entle yemarike yentsimbi yesakhiwo, ishishini lijongene nemingeni emininzi. Ukuguquguquka kwamaxabiso ezinto eziluhlaza, iirhafu zorhwebo, kunye nokuphazamiseka kwekhonkco lokubonelela kunokuchaphazela ukufumaneka kunye neendleko zeemveliso zetsimbi. Ukongeza, ishishini kufuneka lihambe ngeemfuno zolawulo kunye nemigangatho yokusingqongileyo, enokwahluka ngokwengingqi.

IiNdlela zexesha elizayo kwiStructural Steel

Ukujonga phambili, imakethi yentsimbi yolwakhiwo kulindeleke ukuba iqhubeke nomkhondo wayo wokukhula. Ukuveliswa kwezinto ezintsha kwimveliso yensimbi kunye nokucubungula kunokwenzeka ukuba kuphuculwe ukusebenza kunye nokuzinza kweemveliso zetsimbi. Ngaphaya koko, ukonyuka kokwamkelwa kobuchule bokwakha obukwinqanaba eliphezulu, njengolwakhiwo lweemodyuli kunye nolwakhiwo lwangaphambili, kuya kuqhuba imfuno yentsimbi yolwakhiwo olukumgangatho ophezulu.

Ukuqukumbela

Imfuno yehlabathi jikelele yentsimbi yesakhiwo, ngokukodwa i-ASTM A572 kunye ne-Q235 / Q345 I-i-beams, iyakhula njengoko imboni yokwakha isanda. Ezi zixhobo zinika amandla, ukuqina, kunye nokuguquguquka kwezinto ezininzi, zizenza ziyimfuneko kuluhlu olubanzi lwezicelo. Njengoko ishishini liguqukayo, kuya kubaluleka ukuba abavelisi kunye nabakhi baziqhelanise nokutshintsha kweemeko zemarike kwaye bamkele izenzo ezizinzileyo zokuqinisekisa ikamva eliqinileyo lentsimbi yesakhiwo. Ngamaxabiso asele ekhuphisana kunye neenzuzo zokusebenzisa i-I-beams ecacileyo, ikusasa libukeka liqaqambile le nxalenye ebalulekileyo yokwakha yanamhlanje.