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［摘 要］在连续梁桥的设计中，为使梁内预应力筋合理布置，常利用吻合束概念优化预应力筋在梁中的位置，以减小预应力筋的使用量。本文较详细的介绍了吻合束的概念和性质，阐述了调整支座处次弯矩大小的方法，对发挥预应力筋的最佳作用和创造理想的连续梁结构设计具有一定的参考价值。

 

［关键词］吻合束 预应力钢束 次弯矩

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