Intshayelelo yemveliso
Isakhelo senkxaso sisetyenziselwa ukudibanisa imiqolo emininzi yeetrasi zokuqinisekisa ukuzinza kunye namandla afanayo eyunithi yebhulorho ye-truss. Isakhelo senkxaso sinokudibaniswa phezulu kwi-chord ephezulu okanye intonga ethe nkqo.
Kukho iifreyimu zenkxaso ezintandathu eziqhelekileyo (ezaziwa ngokuba ziintyatyambo zeentyatyambo, iifestile zeentyatyambo);
Uhlobo lwe-321 luqhelekileyo: isakhelo senkxaso ye-450, isakhelo senkxaso ye-900, isakhelo senkxaso ye-1350;
Uhlobo lwe-200 luqhelekileyo: isakhelo senkxaso ye-480 ethe tyaba, isakhelo senkxaso ye-480 ethe nkqo, isakhelo senkxaso ye-730 ethe tye, isakhelo senkxaso esithe nkqo se-730.
Isakhelo senkxaso simi ngolu hlobo lulandelayo: isakhelo sokuxhasa sisetyenziselwa ukudibanisa umqolo wokuqala kunye nomqolo wesibini weetrasi. I-Double-row-single-story bridge ye-Bailey yensimbi, embindini wendawo ephezulu ye-truss nganye (okanye i-chord eqiniweyo), isakhelo sokuxhasa sifakwe ngokuthe tye. Kwimeko yemiqolo ephindwe kabini kunye neengqimba eziphindwe kabini, ngaphezu kokufaka isakhelo senkxaso kumphezulu ongaphezulu, isakhelo senkxaso kufuneka sifakwe kwintonga yangasemva ethe nkqo ye-truss ephezulu (intonga enye ethe nkqo ekupheleni kwecandelo lokuqala i-truss nayo kufuneka ifakwe). Xa umisa ibhulorho enemiqolo emithathu, indawo kunye nenani lezakhelo zenkxaso ziyafana nezo zebhulorho enemiqolo emibini. Xa ufaka, faka imikhono e-4 egobileyo kuzo zombini iziphelo kwimingxuma yesakhelo sokuxhasa imiqolo emibini yeetrasi, uze uzilungise ngeebholiti zokuxhasa.
Kwiibhulorho zedekhi, ubukhulu besakhelo senkxaso yi-900 okanye i-1350, kwaye kukho neenkqubo ezikhethekileyo zokudibanisa intonga ngokweemfuno, kwaye uninzi lwazo lufakwe ngeebholiti zenkxaso.
iinkcukacha zemveliso
Isicelo semveliso
I-angle yensimbi isetyenziswa ngokubanzi kwisakhiwo esahlukileyo sokwakha kunye nesakhiwo sobunjineli.
1.umqadi, iibhulorho, ulwakhiwo, inqaba yonxibelelwano, inqanawa.
2.i-transmission tower, i-reaction tower, iishelufu zempahla yokugcina impahla, njl.
3.ukuphakamisa oomatshini bokuthutha,ukwenza oomatshini bezolimo.
4.iziko loshishino.
5.isikhongozeli isakhelo.
