一般预应力混凝土梁和单向板,不论是直线配筋还是曲线配筋,其施工难度都不大,但对于双向受力的预应力混凝土结构(如双向板、井字梁、密肋板等),采用双向曲线配筋方案时,预应力钢索的就位就是一个难题了。以较简单的单区格双向预应力构件(如单跨双向板、密肋板,中间无支撑的井宁梁)为例,两个方向预应力钢索的曲线只有1个“波”,而每 General prestressed concrete beams and one-way plates, whether straight or reinforced, are not difficult to construct, but they are used for two-way prestressed concrete structures (such as two-way plates, string beams, and ribbed plates). ) When using the bidirectional curve reinforcement scheme, the placement of the prestressed steel wire is a challenge. For simpler single-zone two-way prestressed members (such as single-span two-way slabs, multi-ribbed slabs, and unsupported Jingningliang), the curve of prestressed steel cables in both directions has only one “wave”, and each