I beam chikamu simbi ine yakakwira tensile simba uye kuoma, yakanaka kutonhora kukotama uye welding zvivakwa mune yakakwirira-kukwira zvivakwa, mabhiriji uye zvimwe zvivakwa zvesimbi, iwo epakati-sectional dimensions, pamusoro pemhando yekudzora yakanaka, inoshandiswa zvakanyanya muminda yakawanda kugadzira mota. , kuvakwa kwemabhiriji makuru, kugadzira michina, uye mamwe maindasitiri emaindasitiri.