“…Another interesting solution design, steel-concrete composite shell roofs (Comshell roofs), are formed by pouring concrete on a thin stiffened steel base shell (the permanent formwork with the tensile steel reinforcement). It is constructed by bolting together open-topped modular units consisting of a base plate with surrounding edge plates to form with thin stiffeners in both directions [3]. Concrete [4,5], steel [6,7] tank dome roofs are widely described in literature.…”