Chitsulo ine mtengo, kaya wamba kapena kuwala, ali ndi mkulu ndi yopapatiza mtanda gawo kukula, kotero mphindi ya inertia wa nkhwangwa ziwiri zazikulu za gawo mtanda ndi osiyana kwambiri, kotero izo zikhoza kugwiritsidwa ntchito mwachindunji kwa mamembala kupinda mu. ndege ya mbale yake yapaintaneti kapena yopangidwa ndi mamembala ang'onoang'ono.Sikoyenera kwa axial psinjika mamembala kapena mamembala omwe amapindika mu ndege perpendicular kwa intaneti, zomwe zimalepheretsa ntchito yawo.
chitsulo ine mtengo amagawidwa kukhala chitsulo wamba ine mtengo, kuwala chitsulo ine mtengo ndi lonse flange zitsulo ine mtengo.chitsulo ine mtengo ndi flanges lonse, sing'anga flanges ndi yopapatiza flanges amagawidwa malinga ndi kutalika chiŵerengero cha flanges kuti ukonde.Zolemba ziwiri zakale ndi 10-60, ndiko kuti, kutalika kwake ndi 10 cm-60 cm.Pa msinkhu womwewo, kuwala kwachitsulo i beam kumakhala ndi flange yopapatiza, ukonde wopyapyala komanso kulemera kopepuka.chitsulo I mtengo ndi flange lonse, wotchedwanso chitsulo H mtengo, yodziwika ndi kufanana miyendo ndipo palibe kupendekera mkati miyendo.Ndi chuma gawo zitsulo ndi adagulung'undisa pa zinayi mkulu chilengedwe kugubuduza mphero, choncho amatchedwanso "universal zitsulo ine mtengo".