压实系数对内填砂卵石薄壁方钢管柱轴压性能影响研究
发布时间：2019-06-04 07:49
【摘要】：利用压力试验机完成了不同压实系数下内填砂卵石薄壁方钢管柱轴压静力性能试验,分析了不同压实系数下各试件的破坏形态、荷载-位移曲线以及极限承载力等数据。试验结果表明:内填不同压实系数的砂卵石薄壁方钢管柱破坏模式均为局部屈曲失稳破坏,且屈曲位置基本都靠近端部;内填砂卵石的压实系数在86%~92%时,试件承载力增长速率要明显大于压实系数在81%~86%的试件承载力增长速率,即薄壁钢管与砂卵石的相互作用效果较明显。
[Abstract]:The axial compression static performance tests of thin-wall square steel pipe columns filled with sand and pebbles under different compaction coefficients were completed by using pressure tester. The failure patterns, load-displacement curves and ultimate bearing capacity of each specimen under different compaction coefficients were analyzed. The experimental results show that the failure modes of sand and pebble thin-wall square steel pipe columns filled with different compaction coefficients are local buckling failure, and the buckling positions are basically close to the end. When the compaction coefficient of sand and pebble is 86% 鈮，
本文编号：2492578
[Abstract]:The axial compression static performance tests of thin-wall square steel pipe columns filled with sand and pebbles under different compaction coefficients were completed by using pressure tester. The failure patterns, load-displacement curves and ultimate bearing capacity of each specimen under different compaction coefficients were analyzed. The experimental results show that the failure modes of sand and pebble thin-wall square steel pipe columns filled with different compaction coefficients are local buckling failure, and the buckling positions are basically close to the end. When the compaction coefficient of sand and pebble is 86% 鈮，
本文编号：2492578
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