1.Ko te hanganga taraiwa-rua a Gantry, Tiamana rongonui mo te whatanga taputapu waitohu me te punaha tuku pinion, te tino tika me te tere tere, ka pai ake te mahi.
2.Maka konumohe crossbeam, crossbeam nona tapatahi pai, rigidity, kounga mata, ductility.Ka taea e te raima konumohe whakarewa te whakapai ake i te pai o te tukatuka hei whakarite i te kounga o te tukatuka.
3.Pūnaha aro turuki i te pehanga hau
4.Wehehia te rūnanga mana hiko kia ngawari te tirotiro i nga ahuatanga ara iahiko
5.Built-i roto i te taputapu tango puehu
