External prestressing means that the prestressing bars are disposed outside the beam bodies, which in tradition are inside the beams with or without bond.
体外预应力是指预应力筋布置在混凝土梁体以外的预应力，与之相对的即为传统的预应力筋布置在构件截面内的有粘结或无粘结预应力。
The study was carried out to further investigate the simply supported reinforced concrete beam strengthened by external prestressing through experiment and theory analysis.
本文以试验梁为研究对象，采用试验与理论相结合的方法，对体外预应力加固简支梁进行了较深入的研究。
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