partial prestressed component of A 部分预应力A类构件
prestressed concrete component 预应力砼构件
prestressed concrete bending component 预应力混凝土受弯构件
Cracking is quite common in prestressed concrete continuous box girder bridge, which influences appearance of component, life span of using, and even safety of structure,.
预应力混凝土连续箱梁桥的开裂可以说是“多发病”，影响着构件的外观、使用寿命，甚至结构安全。
The prestressed tension is an important part of the prestressed concrete component construction.
预应力张拉是预应力混凝土构件施工的重要环节。
By analysing the force of pre-stressed steel in prestressed concrete bending component, the change method of prestressed steel in prestressed concrete are introduced.
通过对预应力混凝土受弯构件的受力分析，提出了预应力混凝土受弯构件中预应力钢筋代换的基本方法。
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