Ibhuloho le-steel truss liwuhlelo lwesakhiwo phakathi kwemishayo nama-arches. Kuyisakhiwo lapho uhlaka olugobile olungaphezulu lwesigxobo kanye nekholomu ephansi enengcindezi kuhlanganiswa ndawonye. Ngenxa yokuxhumana okuqinile phakathi kwe-beam nekholomu, i-beam iyehliswa ngenxa yokuqina okuguquguqukayo kwekholomu. Lonke uhlelo luyisakhiwo esigoqa ngokucindezelwa kanye nesakhiwo se-thrust.
Ivamise ukusetshenziselwa amabhuloho asemadolobheni noma ama-viaducts othelawayeka kanye nama-overpasses anezipani ezincane; ukhonkolo oqinisiwe ophakathi nendawo omncane; Ukhonkolo oqinisiwe oqiniswe isikhathi eside; amafreyimu aqinile emilenze eqondile ye-span ephakathi nendawo (isitayela sesango) kanye namafreyimu aqinile emilenze; Uhlaka olukhulu oluqinile olumise okwe-Span olumise okwe-S, uhlaka oluqinile oluqhubekayo.
1.Isikhala esikhulu
2.isivinini sokwakha esisheshayo;
3.ukonga amandla;
4. ukubukeka okuhle kwesakhiwo,
5.ukusebenza okuhle kokuzamazama komhlaba;
6.uhlelo lokusebenza olubanzi.
7.Ingenziwa ngezifiso