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.
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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