Umhlanganisi weRebar oshiselweqile ukulungisa okucacileyo

Ngaphi Umqobo we-Rebar Otholakala Unalo Ncamango Ekugcineni Kwazo

Izixhobo zokudibanisa izikhumba ezinamathithi zilondolosa le mizuzu yemfazwe yokudibana ngokulula, zenza izihlangothi eziphambene kangcono ezingumgangatho olukhulu futhi zivikela amandla ukuba aphinde phakathi kwezigaba, iziphazanyo, nezindawo ezikhulu. Uma izikhumba zidibeneyo kakhulu, zazidinga izindawo ezikhethekileyo zokumelana kwaye zazi zenzela ukuthi kungcolakale ukuthunyelwa kwamandla. Okuqukethwe kukho okuthi lezi zixhobo zokudibanisa zingasebenza ngaphezu kuka-100% kokusebenza kwesikhumba esisodwa njengoko kuchazwe yiindlela ezilungileyo njenge-ACI 318 no-ISO 15835. Kuzakhiwo eziphakeme kuzo iintsuku ezinezinkohlaka, lokhu kubaluleke kakhulu ngoba ubume bempahla bezizhobo zokudibanisa bekungcola amandla wale nkohlaka. Iziphazanyo ezilandelayo ziyaphila kulezo ndawo ngenkohlaka, okungafuneki kube khona xa kuchazwe ukhuseleko.

Amacokiya ayenza ngaphezu kokuphatha ubuhle futhi acindeze izinto. Ngokwesibonelo, kubumbane obuqukethwe izigaba ezingu-50, kungakhetha ukuncipha kwebumba le-rebar nge-12%, okusho ukuthi kudingeka konke okuncane kwebumba futhi ukuqina kusenkomini. Umdla otholakele eziphakathini zokuqina kusho ukuthi amabumbane angamacokiya athintekayo aneziphazawini eziningi nge-30% uma azothathwa ngalo lonke ihlathi njengabo abaqhwashelwe ngokusebenzisa izihluzo ze-lap. Kanti ke kunjalo ke kakhulu amabhangelekile asebenzisa lezi ziphazawo emaphrojekthini wamathambo namambane aphakeme lapho ukulungiselela kakhona kuyisidingo, izinhlelo zokugcina zidingeka, futhi umnyango wonke kumele usondele izinkuku ngaphandle kokuhlukunyama.

Indlela Izintambo Zokuxhuma Izinsimbi Zokuxhuma Ezinezintambo Ezisebenzayo Ezisiza Ngayo

Imishini Yokulawula I-Axial Ne-Rotational Ekuxhumaneni Okuhlanganisiwe

Amacuphula ebhulodi enkanyezwe ayithola indiza kakhulu kumathredi athathekileyo endaweni ethile engcinezela kuqaleka ngokujikeleza nokuthintela izinto ukungahambeki. Ngokuhamba kwemathredi epheleleyo, kukhona uhlangano oluphakade phakathi kwezinqawuli ukuze akukhale lokho kuchazwa xa kusebenziswa amandla ngamandla. Indlela le mathredi ivalelayo nakamkani inquma imiphumela yokujika ngenxa yokucazela. Lomacuphula unakekela konke okuhambelana kahle futhi, ukulinda kusuku ngemizuzu emibili ngaphakathi kwegaba elingaphezu kwe-millimeter, noma kube sekuthile sikhazeke. Amasipishi aphelelwayo ahlenzela ngendlela eyodwa njengoba abasebenzi basebeka izinkawu ngobuchwepheshe, okungaba yindlela ebalulekileyo yokwenzeka kwebaviyo. Izinkampani zemathredi zanelisa okunconywayo kodwa njengoba zenza iziphumo ezinokwazwa ekusweni, ukuqinisekisa ukuthatha amandla ngendlela efanelekileyo phakathi kwezendawo zonke zomthombo bese uzondla izindlu ngokulungileyo nokuhlakanipha.

Isibonelo: Amacuphula aqhubekayo aqhubekayo aqhubekayo eGolifitha kumzini womthombo ophakeme

Inkosi yempondo ephakathi kwayo i-60 eyadinga ukulungiselela okuvuthayo kwe-rebar ye-#40 kwizindlu zokuphakama ngenqanaba eliqhelekileyo le-2 mm. Indlela yokudibana yokunxibelelana enesiseko esihambelana sasenza kube lula ukudibanisa ngaphandle kokubuyisa umfanekiso—into eqinisekileyo kumandla amandla apholileyo. Ukufaka kwenzelwe ngokulondoloza okugcwele:

• Izicathulo zezinqunywa zikhiwe kabusha futhi zixhunyiwe ngaphandle kwezinye indawo
• Ukudibanisa okulondoloziwe ngamandla ngokulunga kwe-350 Nm ±5%
• Ukubonakala ngolazeri ngemuva kwethina ngayinye

Wonke amadibaniso ayi-3,200 awavikela imithetho, ngaphandle komsebenzi wokulungisa. Izindlu zokuphakama zazungeze ikhanda lokulahla ngaphezu kwe-150% yendawo yomkhondo. Inkosi yayilima izinsuku ezi-18 kunokudibana okudala—kubonisa konke okukhona ukuthi izidanganiso ezilungileyo zenhance isimo sesivumelwano kanye nokusebenza kwenhlekelela emaphakashini amakhaya.

Isigaba sokuxhunxa phakathi kwe-Taper ne-Parallel Threaded Rebar Coupler: Ukukhetha indlela efanele

Ukulinganisa Kuphila: Ukuguquka Kwamandla kanye Nezilinganiso Zokufaka

Xa kuthotha izixhobo zokudibanisa ezibalulekileyo kwizimo zokwakha, abasebenzi basebenzisa kufuneka bakhetha izinto ezimbili eziphambene: indlela ekhuthazayo yokuthwalela ukulahlekelwa nokuziphatha ngokuvumelana xa kuthiwa. Izinkampani ezinxulumene zinezici zokuzibeka ngokuzenzekelayo eyona-40% isora ixesha lokulungisa emaphandleni amancane okanye emehluko yezixhobo esebenza ngendlela efihlakeleyo. Kodwa, kukho into. Igeometri efanayo eyenzela ukuba ikhutshwe kusetyenziswa inokwenza amathuba apho amaxesha ayadluliswa, oko kuthetha ukuba ubunzima bukuphelele buhlanganisa busafika ngaphezu kuka-90% kuphela kwalo kube lutho oluchasisayo. Ngokwangaphandle, iisixhobo sezixhobo ezinxulumene zibandakanya ngaphezu kuka-98% ukuya ku-102% yesilinganiso sesixhobo njengoko siqinisekile ngokulinganiselwa kukaACI 318. Kukho into enokuthi kudinga inkqubo yokubuyisa ngokucophelelayo ngaphakathi kwe-5 ngaphaya okanye ngapha, kodwa zombini zibandakanya njenge-silinda esiqhubekayo ngokwahlukileyo. Ngoko ke, le zixhobo zizizigaba ezibalulekileyo kwizindlu ezidolophuwe ukuba zingcono ngenxa yezempini nezifundazindlu ezide apho ubunzima bukwakhiwo kubaluleke kakhulu.

Ukukhetha kusobala kuzimisele kizinsiza zeprojekthi: izixhobo zokudibanisa ezibheke phezu kakhulu ekulawuleni ngaphandle kokuba kukhona ukungahambelani kancane; izinkundla eziphakeme zisobala kumgomo wokuthinta kwizixhobo lapho umgomo wokuthinta kumgomo ungumthombo.

Izindlela Ezilungileyo Ekulondolozweni Kwezixhobo Zokudibanisa Nezinkcazelo Ezithunywa

Ukufakwa ngendlela efanelekile kuyinhloso eyodwa yokuphatha isimo—ukungenamkhondo kunciphisa usizo lwesimo ngalangu-40%, ngokwemvavanyo yezulu le-2023. Ukubonakala kwesifakelo kuyindima eyodwa yokuphila kwayo futhi ikhokeza kumathuba amathathu okuvikwa ngcono.

Ukubonakala Kwesifakelo: Izimiso Ze-Axial, I-Torque, Nezimiso Zezenzo

Kudingeka ukuthi uqinisekise ukuhambisana kwe-axial kwi-1.5° ngezimali ezisebenzisa i-laser; ukungahambelani kangenxa ye-3° kunciphisa inani lokuthinta ngalangu-25%. Ukusebenzisa i-torque kudinga izixhobo ezilungile ezilandelwe ngokuthi zisetshenziselwe amanani abhalwe nguququzeleli—ngokuvamile 200–450 Nm ngokusho kwebhola le-rebar—kanye naloo mininingwane ibhalwe ngendlela ephathelene ngenkinga yokuhlola.

Ukulungiswa kweyini kuyafana njalo:

• Susa ihluzi, ivili, kanye nesikhelela ngokuhlanza ngokuthwathwa kwedobha
• Qinisekisa ubumfihlo bwebhola ngokusebenzisa izikhali ze-go/no-go kabefore yokudwelisa
• Faka ikhompoyini yesivimba ngokunciphisa ukuhlukaniswa kwe-galvanic

Ekugcineni, qhafatha izivivinyo zokuphuma ku-5% kwezixhumaniso ezikhethiwe ngokulungileyo ethekweni. Lokhu kugcinelwa kokunye kusindisa ukwenza futhi, kusidla ulwandelo, kanti nakholisa ukuguqwa okufanayo kwegevane yonke yomkhumbi.

Imibuzo Evame Ukubuzwa

Kungani izixhumanisi zezimbiza ezingenabhola zibalulekile ekwakheni?

Izixhumanisi zezimbiza ezingenabhola zibalulekile ekwakheni njengoba zinika izixhumaniso zemishini eziphila okuvikelwa kwegevane, zilahlela ukugqatha kwegevane, zibanzekeka, zisave amakhemikhali namahora ngexesha lokwakha.

Izixhumanisi zezimbiza ezingenabhola zisiza kanjani emakhanda apholileyo kwezinkukhu?

Emakhanda apholileyo kwezinkukhu, ubume bezixhumanisi zezimbiza ezingenabhola buhla ulahleko olukhuni kwaye lukhokele ekungagcwaliseni ngenkukhu, libone inhlangothi ye-seismic.

Kutheni izidingo zokufaka kwezinkcukacha zokudluliswa kwesilinda?

Ukufaka kudinga ukulungiselela ngqo, ukusebenzisa itorque ngokulawula, ukulungiselela isandla njenge-ukususa ubisi, nokubaluleka kwamathredi ukuqinisekisa ukuthi kukhona izixhumanisi ezivikela futhi kugcinwe iqiniso lempilo yomphakathi.