ISO 3766:2003规定了施工图中钢筋和预应力混凝土中钢筋的简化表示和特征。它还建立了钢筋调度系统，包括指定尺寸的方法、钢筋形状的编码系统、首选形状的调度以及形状和弯曲调度。

ISO 3766:2003 specifies the simplified representation and the characterization of reinforcement in reinforced and in prestressed concrete for use in construction drawings. It also establishes a system for the scheduling of reinforced bars, comprising a method for specifying dimensions, a coding system for bar shapes, a schedule of preferred shapes and shape and bending schedules.