Tsarin zane naTarin takardar ƙarfe na U-typeyana nufin cewa interlocks suna kan layiTsaka-tsakin Tsaka-tsakina dukkan bangon tarin.
Daidaiton Inji:Sabanin hakaTarin nau'in Z,kowane sashe na giciye na waniU-tarinyana da daidaito gaba ɗaya. Wannan yana tabbatar da rarrabawar damuwa ta ciki iri ɗaya lokacin da aka fuskanci matsin lamba na ƙasa ko ruwa, wanda hakan ke sauƙaƙa tsarin lissafin tsari sosai.
Lokacin Inertia & Sashe Modulus:
Tsarin Birgima Mai Zafi: Tubalan U masu siffar zafi(kamar nau'in Larssen) ana samar da su ta hanyar birgima mai zafi sosai, wanda ke haifar da ƙarin kauri na kimiyya na flanges da webs. Wannan yana ba da damar samun babban sashi mai girma (yawanci daga 745 cm³/m zuwa 3,200 cm³/m) yayin da yake riƙe da ƙarancin nauyi na naúrar.
Tsarin Lissafi:Lanƙwasawa sigma = M / W, inda M shine lokacin lanƙwasawa kuma W shine tsarin sashe. Babban ƙimar W na U-piles kai tsaye yana ƙayyade juriyarsu ta juyawa idan aka yi amfani da su a cikin akwatunan ajiya.