当冻融次数少于15次时，钢筋极限粘结荷载时的滑移变化不大，而冻融次数多于15次时滑移变化明显增大。
The slip of reinforcement corresponding to the ultimate bond strength changes slightly up to 15 freezing and thawing cycles and greatly more than 15 cycles.
粘贴层数对木材与玄武岩纤维布的极限粘结荷载也有一定影响，随bfrp粘贴层数的增加，极限粘结荷载逐渐增加。
With the growth of BFRP bond layers, not only the effective bond length but also the ultimate load between BFRP sheets and wood sheets increase.
基于所得平均粘结强度，推导了临界锚固长度和极限荷载表达式。
The critical anchorage length and ultimate load functions are derived in response to the average bond stress.
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