the external prestressing的意思|示意

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。

Vibration characteristics of external tendons used on external prestressing concrete beams are detailedly calculated. Also the tested vibration characteristics of railway concrete beams are presented.

详细计算了体外预应力混凝土梁中常用型号体外索的自振特性，介绍了铁路混凝土梁的实测自振频率。

The external prestressing strengthening method has become the first-selected method in the bridges upper structure strengthen because of its numerous advantages.

体外预应力加固法由于众多的优点而成为桥梁上部结构加固的首选方法。

The current applied fields of external prestressing mainly includes externally prestressed concrete bridge, structure rehabilitation and prestressed steel structure, etc.

体外预应力技术的应用领域现阶段主要包括体外预应力混凝土桥梁、结构的体外预应力加固和预应力钢结构。

However the theory research on external prestressing technique applicable to the reinforcement of such Bridges is becoming common now, the reinforcement theory is still immature.

目前对适用于这类桥梁加固的体外预应力技术的理论研究比较普遍，但其加固理论并未成熟。

Section increasing method is given priority to apply to the corroded columns, and then the comprehensive method to the beams, external prestressing method to the slabs.

结构加固中，柱优先采用加大截面法，梁采用综合加固法，板采用体外预应力法。