Kazhinji inoshandiswa kumigwagwa-njanji mabhiriji ane madiki madiki.
Mukati metruss, chord inhengo dzinoumba periphery yetruss, kusanganisira chepamusoro chord uye nechepasi chord. Nhengo dzinobatanidza chepamusoro nechepazasi chords dzinonzi web members. Zvinoenderana neyakasiyana nzira dzewebhu nhengo, dzakakamurwa kuita diagonal rods uye vertical rods.
Ndege panowanikwa chords nemadandemutande inonzi main girder plane. Kureba kwebhiriji kwezambuko hombe rinoshanduka richitevedza nhanho yekuita tambo yakakombama truss; iyo yepakati uye diki spans inoshandisa inogara truss urefu, iyo inonzi flat tambo truss kana yakatwasuka tambo truss. Iyo truss chimiro inogona kuumbwa kuita danda kana arch bhiriji, uye inogona zvakare kushandiswa sedanda guru (kana kuomesa danda) mune tambo yekutsigira system bhiriji. Mabhiriji akawanda etruss anovakwa nesimbi. Iyo truss bhiriji inzvimbo isina mhango, saka ine yakanaka kuchinjika kune yakapetwa kaviri.
Simbi truss bhiriji inosanganisa zvakanakira simbi uye truss chimiro:
1. Chiedza chimiro uye yakakura kutenderera kugona
2. Zviri nyore kugadzirisa uye kutsiva
3. Iyo simbi truss danda ine nhengo dzakawanda uye node, chimiro chakanyanya kuoma, uye kugadzikana kwakasimba.
4.Kuramba kwakasimba kumanikidziro uye kuvimbika kwakanaka
5. Yakasiyana-siyana yekushandiswa