Iyo simbi truss zambuko igadziriro yezvimiro pakati pematanda uye arches. Icho chimiro umo yakakotama yepamusoro danda chimiro uye kumanikidza-inotakura yakaderera mbiru inobatanidzwa pamwechete. Nekuda kwekubatana kwakasimba pakati pedanda nembiru, danda rinoburutswa nekuda kwekuchinjika kwekoramu. Iyo yese system ndeye compression-bending chimiro pamwe neiyo thrust chimiro.
Inowanzo shandiswa kumabhiriji emudhorobha kana nzira huru nemavhairasi uye overpasses ane zvipanu zvidiki; pakati uye diki span yakasimbiswa kongiri; refu span prestressed reinforced concrete; zvepakati nediki span akatwasanuka-gumbo akaomarara mafuremu (gedhi-maitiro) uye akarereka gumbo akaomarara mafuremu; hombe Span T-yakaita rigid furemu, inoenderera yakaomarara furemu.
1.Kureba kukuru
2.fast kuvaka speed;
3.kuchengetedza simba;
4. chitarisiko chakanaka chekuvaka,
5.good seismic performance;
6.wide application.
7.Can kugadzirwa