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为研究型钢轻骨料混凝土梁的正截面受弯承载力,进行了8根型钢轻骨料混凝土梁和2根型钢普通混凝土梁的受弯性能试验。根据对型钢普通混凝土梁正截面受弯承载力的分析结果,提出了型钢轻骨料混凝土梁正截面受弯承载力计算的修正型钢规程法和叠加法。8根型钢轻骨料混凝土试验梁的受弯承载力实测值与修正型钢规程法计算值之比的平均值为1.042,变异系数为0.039;与叠加法计算值之比的平均值为1.039,变异系数为0.039,证明采用修正型钢规程法和叠加法来计算型钢轻骨料混凝土梁的正截面受弯承载力是可行的。
In order to study the normal section flexural capacity of SRC beams, the flexural performance of 8 SRC beams and 2 SRC beams was tested. Based on the analysis results of the normal section flexural capacity of profiled normal steel beams, a modified profile method and superposition method are proposed to calculate the flexural bearing capacity of normal section of SRC beams. The average of the ratio of the measured value of flexural capacity and the calculated value of the modified steel code method for the eight steel-reinforced concrete lightweight test beams is 1.042 and the coefficient of variation is 0.039, the average ratio of the calculated value to the additive method is 1.039, The coefficient is 0.039, which proves that it is feasible to calculate the normal section flexural capacity of SRC beams by modified steel rules and superposition method.