Lo mhlahlandlela ophelele uhlola izici ezibalulekile zokukhetha ezifanele ngaphezulu kwe-crane beam ngezidingo zakho ezithile. Sizocubungula izinhlobo ezahlukene zemishayo, izici ezithonya ukukhetha kwazo, kanye nezinqubo ezingcono kakhulu zokuqinisekisa ukuphepha nokusebenza kahle. Funda ukuthi unganquma kanjani umthamo olungile wokulayisha, ubude besikhathi, nezinto ezibonakalayo zohlelo lwakho lokusebenza. Noma ngabe ungcweti noma usanda kuqala ukuhlola umhlaba wokuphakamisa izimboni, lo mhlahlandlela uzohlinzeka ngemininingwane ebalulekile.
Lezi zinhlobo ezivame kakhulu ngaphezulu kwe-crane beam, aziwa ngesilinganiso sawo esiphezulu samandla nesisindo. Ngokuvamile zenziwa ngensimbi futhi zifanele ukusetshenziswa okubanzi. Ukukhetha kuncike ezintweni ezifana nomthamo womthwalo odingekayo kanye nobude besikhathi. Izibalo ezifanele zibalulekile ukuze kuqinisekiswe ukuphepha. Imishayo ye-I enosayizi ongalungile ingaholela ekuhlulekeni kwesakhiwo, ngakho-ke hlala uthintana nonjiniyela wesakhiwo ukuze uqinisekise usayizi onembile.
Inikeza umthamo owengeziwe wokuthwala umthwalo uma kuqhathaniswa nemishayo ye-I evamile, imishayo ye-flange ebanzi ilungele izinhlelo zokusebenza zokuphakamisa isisindo. Ama-flange awo abanzi anikeza ukuzinza okukhulu nokumelana nokugoba. Ziyinketho ethandwayo yomsebenzi osindayo i-crane ephezulu izinhlelo. I-Hitruckmall inikeza izixazululo eziningi kumishini yokuphatha impahla.
Imishayo yebhokisi, eyakhiwe ngezingcwecwe ezine ezishiselwe ndawonye ukuze zakhe ingxenye engenalutho engunxande, ziqine ngendlela engavamile futhi ziqinile. Zihamba phambili ezinhlelweni ezidinga ukuqina okuphezulu kwe-torsional kanye nokumelana nokuchezuka kwezinhlangothi. Le mishayo ingakwazi ukusekela imithwalo esindayo kakhulu nezibambi ezinde. Nokho, ngokuvamile zibiza kakhulu kune-I-imishayo.
Isici esibucayi kakhulu umthwalo omkhulu we ngaphezulu kwe-crane beam idinga ukwesekwa. Lokhu akubandakanyi kuphela isisindo sento ephakanyisiwe kodwa nesisindo se-crane ngokwayo nanoma yiziphi izingcindezi ezengeziwe. Izibalo zomthwalo onembile, kucatshangelwa izici zokuphepha, zibalulekile.
Ibanga phakathi kwamaphoyinti okusekela we- ngaphezulu kwe-crane beam kunomthelela kakhulu ekukhethweni kohlaka. Izikhonkwane ezinde zidinga imishayo enokuqina okukhulu namandla ukuvimbela ukuchezuka ngokweqile. Lesi sici sibalulekile ekuqinisekiseni ubuqotho besakhiwo sayo yonke isistimu ye-crane.
Insimbi iyinto evame kakhulu imishayo ye-crane ephezulu ngenxa yamandla ayo kanye nezindleko eziphansi uma kuqhathaniswa. Kodwa-ke, ezinye izinto ezinjengama-alloys e-aluminium zingase zicatshangelwe izinhlelo zokusebenza ezithile lapho ukunciphisa isisindo kubaluleke kakhulu, nakuba amandla angase abe sengozini. Ukukhethwa kwezinto ezibonakalayo kuthonywa kakhulu izimo zemvelo kanye nemvelo yomthwalo ophathwayo.
Ukuhlolwa njalo nokunakekelwa kubalulekile ukuqinisekisa ukuqhubeka nokusebenza okuphephile kwe i-crane ephezulu izinhlelo. Ukuthobela yonke imithetho nezindinganiso zokuphepha kubalulekile. Ukuhlolwa kochwepheshe kungasiza ekuhlonzeni izinkinga ezingase zibe khona kusenesikhathi, kuvinjwe izingozi kanye nokulungiswa okumba eqolo.
Ukukhetha umphakeli onedumela elihle kubalulekile ukuze uqinisekise ikhwalithi nokuphepha kwakho imishayo ye-crane ephezulu. Bheka abahlinzeki abanerekhodi eliqinisekisiwe, ukuzibophezela ekulawuleni ikhwalithi, kanye nohlu olubanzi lwezinketho ezifanelana nezidingo zakho ezithile. I-Hitruckmall ingumhlinzeki oholayo wemishini yezimboni, kufaka phakathi ikhwalithi ephezulu i-crane ephezulu izingxenye.
| Uhlobo lwe-Beam | Layisha Amandla | Span Amandla | Izindleko |
|---|---|---|---|
| I-Beam | Kuphakathi | Kuphakathi | Phansi |
| I-Wide Flange Beam | Phezulu | Phezulu | Maphakathi |
| I-Box Beam | Phezulu kakhulu | Phezulu kakhulu | Phezulu |
Qaphela: Umthamo wokulayisha namandla we-span ahlobene futhi ancike kubukhulu obuthile nokokusebenza kwe-beam. Hlala ubheka izicaciso zobunjiniyela zohlelo lwakho lokusebenza ngqo.
Khumbula njalo ukubeka phambili ukuphepha futhi uxhumane nochwepheshe abaqeqeshiwe lapho uklama futhi usebenzisa i-crane ephezulu izinhlelo.
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