Among them, the studies on the FRP-concrete interfacial bond-slip (δ-τ) constitutive law and the debonding failure of FRP strengthening reinforce concrete beams have become two important focuces in recent years.
其中,FRP-混凝土界面的粘结-滑移(δ-τ)本构关系和FRP加固梁混凝土的粘结界面剥离破坏是近年来研究的两个重点。
参考来源 - FRPBut strengthening effect is weakened by debonding failure. This type of brittle failure not only make reinforcement inactivation but also even course component damaged.
然而,剥离破坏的发生大大影响了FRP的加固效果,这种脆性破坏不仅导致粘贴加固的失效,甚至造成被加固构件的损伤。
参考来源 - FRP加固混凝土梁片材端部界面剥离破坏分析·2,447,543篇论文数据,部分数据来源于NoteExpress
Therefore, it is very important to accurately detect the location and size of debonding failure.
因此,如何准确检测出剥离破坏层的位置和大小具有重要的工程意义。
The main factors of debonding failure and maximum debonding stress of two types of failure mode are drawn through the analysis of various parameters.
对各种参数进行分析,得到了两种不同剥离破坏形式下的最大粘结剥离应力;
Through the control of critical points as the FRP length, number of FRP layer and mechanical property of adhesive, which is useful for restraining debonding failure.
通过对纤维布粘贴层数、长度以及粘结胶力学特性等关键要素的控制,可以有效地抑制粘结剥离破坏的发生。
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