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为改进方钢管对混凝土的约束作用,作者设计了两种复合截面方钢管混凝土梁,与普通方钢管混凝土梁进行了抗弯性能的对比试验。并采用数值分析方法对全过程进行分析,计算结果和试验结果吻合良好。试验结果可为进一步研究方钢管混凝土柱的压弯性能提供参考。
In order to improve the restraint effect of square steel tube on concrete, the author designed two kinds of concrete-filled square steel tube beams with square section, and compared them with ordinary square steel tube concrete beams. The numerical analysis method is used to analyze the whole process. The calculated results are in good agreement with the experimental results. The test results can provide reference for further research on the buckling performance of concrete filled square steel tubular columns.