对受拉表面粘贴纤维增强复合材料(Fibre reinforced polymer/plastic,FRP)或钢板的抗弯加固钢筋混凝土(Reinforced concrete,RC)梁的板端剥离破坏承载力进行了较为细致的研究.在分析关键参数、试验数据及现有计算模型的基础上,提出了一个简单、合理的板端剥离破坏承载力计算新模型.该模型首先给出板端位于纯弯区的弯曲剥离和板端位于弯矩为零或接近于零的主剪区的剪切剥离的承载力计算公式,进而采用简洁的相关曲线确定板端在弯-剪共同作用区的剥离承载力.新模型通过包含未加固梁的抗剪承载力和几个物理意义明确的重要参数,充分反映了抗弯加固梁的剥离破坏机制,与试验结果吻合良好,使用方便,可供制订规范和实际加固工程设计时参考应用.
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