本文首先利用刚性单柱屈曲荷载增量与支撑刚度的关系，得到了单柱横系杆支撑、斜拉杆支撑的门槛刚度要求。
Based on the relationship between the buckling load of a rigid column and the bracing stiffness, the critical stiffness requirement of the bracing for a single column was obtained.
介绍了单牵引拉杆装置横向刚度的测定方法和设计思路。
The measurement method and design thought of the lateral rigidity of the single traction rod device are described.
钢筋混凝土柱的预应力加固方法可以分为单侧撑杆加固、双侧撑杆加固以及拉杆加固，对不同加固方法的适用范围，目前尚未有文献介绍。
There are three kinds of methods of concrete column strengthened with prestressed. The concept of unloading curve for the strengthening method with prestressing is introduced.
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