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文章针对受压区加固后的组合截面受弯构件正截面承载力计算公式并没有对其受压区相对界限高度系数进行说明,对影响受压区增大截面加固后相对界限高度系数的因素进行分析计算。分析结果表明,受压区增大截面加固后相对界限高度系数,可按照现行设计规范(JTG D62-2004)的规定值计算,可充分保证构件不发生脆性破坏。
In this paper, according to the calculation formula of the bearing capacity of the normal section of the flexural members strengthened by the compression zone, the relative coefficient of the relative height of the compression zone is not explained. The factors affecting the height of the relative limit after the reinforcement of the compression zone are carried out Analysis calculated. The analysis results show that the increase of the relative height limit coefficient after reinforcement in the compression zone can be calculated according to the specified value of the current design code (JTG D62-2004), which can fully ensure that the components will not be damaged by brittle failure.