摘要
为探讨由CFRP(碳纤维)布全包加固经过冻融后的混凝土试件梁的正截面抗弯承载力,选用模型试验,得到试件梁在经过不同次数冻融之后的极限抗弯承载力试验值,并记录破坏值.采用合理的混凝土冻融损伤模型,推导出CFRP布全包加固的冻融损伤试件梁在理想破坏状态下的抗弯承载力公式,将试验数据与由抗弯承载力公式计算得出的计算值对比可知误差合理,检验了公式的合理性.
In order to study the flexural bearing capacity of freeze-thaw damaged concrete beams strengthened with CFRP sheets,model tests were used to measure the flexural capacity of concrete specimens after different freezing-thawing cycles,and the test data of ultimate bearing capacity were recorded.A reasonable damage model of concrete freeze-thaw damage was used to deduce the formula of the flexural bearing capacity of specimens in a ideal failure state,the error was reasonable by comparing the theoretical value calculated by the derived formula with the experimental value,the rationality of the formula was verified.
引文
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