Isidingo Somhlaba Wonke Sensimbi Yesakhiwo: Ukunyuka kwe-ASTM A572 kanye ne-Q235/Q345 I-Beams

Eminyakeni yakamuva, imboni yezokwakha ibone ukwanda okukhulu kwesidingo sensimbi yesakhiwo, ikakhulukazi amaphrofayili ensimbi amise okwe-I njenge-ASTM A572 kanye ne-Q235/Q345. Lezi zinto zibalulekile ekwakheni izakhiwo eziqinile, futhi ukuthandwa kwazo emakethe yomhlaba kuwubufakazi bokwethenjelwa kwazo kanye nokuhlukahluka kwazo.

Ukuqonda Structural Steel

Insimbi yesakhiwo yisigaba sensimbi esetshenziselwa ukwenza izinto zokwakha ngezindlela ezihlukahlukene. Yaziwa ngesilinganiso sayo esiphezulu samandla nesisindo, okuyenza ibe yinketho ekahle yokwakha izakhiwo, amabhuloho, nezinye izingqalasizinda. Phakathi kwezinhlobo ezahlukene zensimbi yesakhiwo, i-I-beams, eyaziwa nangokuthi i-H-beams noma i-H-sections, ithandwa kakhulu ngenxa yekhono layo lokusekela imithwalo esindayo ngenkathi inciphisa ukusetshenziswa kwezinto ezibonakalayo.

I-ASTM A572: Izinga Lensimbi Yamandla Aphakeme

I-ASTM A572 iwukucaciswa kwensimbi yesakhiwo yamandla aphansi ye-columbium-vanadium. Isetshenziswa kabanzi ekwakheni futhi yaziwa ngokushisela kwayo okuhle kakhulu kanye nokusebenziseka kwayo. Insimbi itholakala emabangeni ahlukene, kanti iBanga lama-50 yilona elisetshenziswa kakhulu uma kwenziwa izinhlelo zesakhiwo. Amandla esivuno esiphezulu se-ASTM A572 ayenza ifanelekele ukusetshenziswa ezindaweni ezidinga kakhulu, lapho ubuqotho besakhiwo bubaluleke kakhulu.

I-Q235 kanye ne-Q345: Amazinga aseShayina

Ngaphezu kwamazinga e-ASTM, imakethe yaseShayina isebenzisa amamaki ensimbi e-Q235 kanye ne-Q345, aziwa kabanzi ngamandla awo kanye nokuguquguquka kwawo. I-Q235 iyinsimbi yesakhiwo sekhabhoni ephansi evame ukusetshenziswa ekwakhiweni, kuyilapho i-Q345 iyinsimbi ene-alloy enamandla ephezulu enikeza izakhiwo ezithuthukisiwe zemishini. Womabili amabanga abalulekile ekusebenzeni okuhlukahlukene, okuhlanganisa ukwakhiwa kwezakhiwo, amabhuloho, neminye imiklamo yengqalasizinda.

I-Global Market ye-I-Beams

Imakethe yomhlaba wonke yama-I-beams ibilokhu ikhula ngokushesha, iqhutshwa ukukhula kwemboni yezokwakha kwezomnotho osafufusa. Amazwe anjenge-China, i-India, ne-Brazil abhekene nokukhula kwentuthuko, okuholela ekwandeni kwesidingo sensimbi yesakhiwo. Ukuguquguquka kwe-I-imishayo kubenza bafaneleke ezinhlobonhlobo zezicelo, kusukela ezakhiweni zokuhlala kuya kumaphrojekthi amakhulu okuhweba.

Intengo yemishayo ye-I, njengaleyo eyenziwe nge-ASTM A572 kanye ne-Q235/Q345, izinzile uma kuqhathaniswa, nezintengo zamanje zemakethe zihamba cishe ku-$450 ngethani. Lokhu kukwazi ukuthengeka, kuhlanganiswe namandla okusebenza nokuqina, kube nomthelela ekudumeni kwakho kubakhi nosonkontileka emhlabeni jikelele.

Izicelo ze-I-Beams Ekwakhiweni

I-I-imishayo isetshenziswa ezinhlelweni zokwakha ezahlukahlukene, kufaka phakathi:

1. Izinhlaka Zokwakha: I-I-imishayo ivame ukusetshenziswa njengento eyinhloko yesakhiwo ohlakeni lwezakhiwo. Ukuma kwabo kuvumela ukusatshalaliswa kwemithwalo ephumelelayo, okwenza kube kuhle ukusekela phansi nophahla.
2. Amabhuloho: Amandla nokuqina kwama-I-beams awenza abe yinketho edumile yokwakha ibhuloho. Ziyakwazi ukumelana nemithwalo esindayo futhi zimelana nokugoba kanye nokuguqulwa.
3. Izakhiwo Zezimboni: Amafekthri nezindawo zokugcina izimpahla zivame ukusebenzisa imishayo ye-I ekwakhiweni kwazo ngenxa yekhono lazo lokusekela imishini esindayo nemishini.
4. Ukwakhiwa Kwezindawo Zokuhlala: Ezakhiweni zokuhlala, i-I-imishayo isetshenziselwa ukudala izindawo ezivulekile kanye nezikhala ezinkulu ngaphandle kwesidingo samakholomu angeziwe okusekela.

Ukusimama kanye nokucatshangelwa kwemvelo

Njengoba imboni yezokwakha iqhubeka nokukhula, kunokugxila okwandayo ekusimameni kanye nomthelela wemvelo. Insimbi yesakhiwo, okuhlanganisa ne-I-imishayo, iyakwazi ukugaywa kabusha, okwenza kube ukukhetha okuvumela imvelo kumaphrojekthi wokwakha. Abakhiqizi abaningi bamukela izinqubo ezizinzile, ezifana nokusebenzisa insimbi egaywe kabusha kanye nokunciphisa imfucuza ngesikhathi sokukhiqiza.

Izinselelo Embonini Yensimbi

Naphezu kombono omuhle wemakethe yensimbi yesakhiwo, imboni ibhekene nezinselele ezimbalwa. Ukushintshashintsha kwezintengo zempahla engavuthiwe, amanani okuhweba, nokuphazamiseka kochungechunge lokuhlinzeka kungaba nomthelela ekutholakaleni nasezindlekweni zemikhiqizo yensimbi. Ukwengeza, imboni kufanele ihambe ngezidingo zokulawula kanye namazinga emvelo, angahluka ngokwesifunda.

Amathrendi Akusasa Ensimbi Yesakhiwo

Uma ubheka phambili, imakethe yensimbi yesakhiwo kulindeleke ukuthi iqhubeke nomkhondo wayo wokukhula. Izindlela ezintsha zokukhiqiza nokucutshungulwa kwensimbi kungenzeka zithuthukise ukusebenza nokusimama kwemikhiqizo yensimbi. Ngaphezu kwalokho, ukwamukelwa okwandayo kwamasu okwakha athuthukile, njengokwakha amamojula kanye nokwenza ngaphambili, kuzoqhuba isidingo sensimbi yesakhiwo sekhwalithi ephezulu.

Isiphetho

Isidingo somhlaba wonke sensimbi yesakhiwo, ikakhulukazi i-ASTM A572 kanye ne-Q235/Q345 I-beams, siyakhula njengoba imboni yezokwakha ikhula. Lezi zinto zinikeza amandla, ukuqina, kanye nokuguquguquka, okuzenza zibaluleke ezinhlobonhlobo zezinhlelo zokusebenza. Njengoba imboni ithuthuka, kuzobaluleka ukuthi abakhiqizi nabakhi bazivumelanise nezimo zemakethe ezishintshayo futhi bamukele izindlela ezisimeme zokuqinisekisa ikusasa eliqinile lensimbi yesakhiwo. Njengoba amanani esele encintisana futhi izinzuzo zokusebenzisa i-I-imishayo zicacile, ikusasa libukeka liqhakazile kule ngxenye ebalulekile yokwakha yesimanje.