1. 321 uhlobo lwebhuloho lensimbi I-Bailey net lane ububanzi bungamamitha angu-3.7;I-200 steel bridge net lane ububanzi bunezinhlobo ezimbili: ububanzi obujwayelekile bungamamitha angu-4.2 (bulungele izimoto ezikhethekile);
2. Ukuhlelwa okumangelengele kwelunga eliphakathi kwe-chord ne-truss kuyaqiniswa ukuze kuncishiswe ukuwohloka kwe-inelastic okubangelwa ukucaciswa kwembobo yephini, futhi indlela yangaphambi kwe-arching iyamukelwa ukuze kuncishiswe kakhulu ukuchezuka okuqondile kwe-span yebhuloho.Ibhuloho lensimbi yohlobo lwe-321 alikwazi ukuhlelwa ngale ndlela, futhi ukuchezuka kwalo lonke ibhuloho kukhulu kunokwebhuloho lensimbi le-HD200.
3. Ilungu lokuxhunywa kwebhawodi lisebenzisa indlela yokubeka nokulungisa umkhono womhlahlandlela ukwandisa ukunemba kokuxhumana komkhiqizo, umkhono womhlahlandlela uyagundwa, ibhawodi liyadonswa, impilo yesevisi yebhawodi iyathuthukiswa, nokuphepha ibhuloho lensimbi liqinisekisiwe.
4. Induku ye-HD200 ekwazi ukumelana nomoya yenziwa uhlobo olulodwa, futhi ixhunywe ne-beam ukuze kuthuthukiswe ukuzinza okuphelele kwebhuloho lensimbi.
5. Uhlaka lokusekela oluvundlile lwebhuloho lensimbi le-HD200 ligxilile phakathi kohlaka lokusekela oluvundlile kanye nocezu lwe-truss.Lokhu kuqinisekisa ukuthi lonke ibhuloho alikho ukugoba ohlangothini futhi lonke ibhuloho ifakwe kahle pre-camber.
6. Izingxenye zebhuloho lensimbi azilungele ukuhlanganisa, ukuqaqa, ukuthuthwa nokugcinwa.
7. Endabeni ye-span enkulu, ibhuloho lensimbi yohlobo lwe-321 ngokusobala lidlula ibhuloho lensimbi le-HD200 ngenani lensimbi esetshenzisiwe.Ifomu lenhlanganisela yebhuloho lensimbi yohlobo lwe-321 ithi: imigqa emithathu yohlobo olulodwa oluqinisiwe, futhi isisindo salo singamathani angu-57.2.Ifomu lenhlanganisela yebhuloho lensimbi le-HD200 lithi: uhlobo oluqinisiwe lwemigqa emibili yongqimba olulodwa, isisindo salo: amathani angama-54.8, onga amathani angu-2.4 ensimbi kunebhuloho lensimbi lohlobo lwe-321, kanye nomzila wenetha webhuloho lensimbi i-Bailei nawo ukhuphuka ube amamitha angu-4.2. , elungele izimoto.nge.
8. Lapho kudingeka umthwalo okhethekile, uhlobo lwe-321 alukwazi ukuthwala, futhi ibhuloho lensimbi le-HD200 lingadlula umthwalo omkhulu wamathani angama-60.