Simbi i beam, ingave yakajairika kana yakareruka, ine yakakwira uye yakamanikana muchinjiko-chikamu saizi, saka nguva ye inertia yemaanhu maviri makuru emuchinjiko yakasiyana, saka inogona kungoshandiswa zvakananga kune nhengo dzakakombamira mukati. ndege yedandemutande rayo kana inoumbwa nenhengo dzakashongedzwa.Izvo hazvina kukodzera kune axial compression nhengo kana nhengo dzakakotama mundege perpendicular kune webhu, iyo inoganhura mashandisiro avo.
simbi i danda inonyanyopatsanurwa kuita yakajairika simbi i danda, simbi yakareruka i danda uye yakafara flange simbi i danda.simbi i danda nehupamhi flanges, epakati flanges uye yakamanikana flanges yakakamurwa zvichienderana nehurefu reshiyo yeflanges kune webs.Tsanangudzo yezviviri zvekare ndeye 10-60, kureva kuti, kukwirira kwakaenzana ndeye 10 cm-60 cm.Pahurefu hwakafanana, simbi yakareruka i beam ine nhete flange, nhete yewebhu uye huremu huremu.simbi i danda nehupamhi flange, inozivikanwawo sesimbi H danda, inoratidzwa nemakumbo akafanana uye hapana kurerekera mukati memakumbo.Iyo ndeye yehupfumi chikamu simbi uye inokungurutswa pane ina-yakakwirira universal rolling mill, saka inonziwo "universal steel i beam".