负载下外包钢筋混凝土加固轴压钢柱承载力计算方法

发布时间：2018-01-22 14:43

本文关键词： 负载下外包钢筋混凝土加固承载力轴心受压计算方法　出处：《沈阳建筑大学学报(自然科学版)》2015年06期 　论文类型：期刊论文

【摘要】：目的研究负载下外包钢筋混凝土加固轴心受压钢柱的承载力计算方法.方法通过叠加法和极限平衡法,研究负载下外包钢筋混凝土加固轴心受压钢柱的承载力计算方法,并与试验结果进行对比分析.结果提出了综合考虑初始轴压比、外包混凝土强度等级以及箍筋约束作用的负载下外包钢筋混凝土加固轴心受压钢柱的承载力计算公式,通过将公式所得的计算结果与试验结果进行对比分析,发现运用此计算公式计算得到的极限承载力与试验结果比的平均值为0.941 5,平均误差为5.86%.结论根据试验结果与笔者所给公式的计算结果吻合良好,证明了该公式的正确性,并且此公式具有较好的安全储备,可用于指导实际工程.
[Abstract]:Aim to study the calculation method of bearing capacity of steel columns strengthened with reinforced concrete under load. The calculation method of bearing capacity of steel columns strengthened with reinforced concrete under load is studied, and the results are compared with the experimental results. The results show that the initial axial compression ratio is considered comprehensively. The calculation formula of bearing capacity of steel columns strengthened by reinforced concrete under the load of strength grade and stirrups restraint is compared and analyzed by comparing the calculated results with the experimental results. It is found that the average value of the ratio of the ultimate bearing capacity calculated by this formula to the test results is 0.941 5. The average error is 5.860.Conclusion according to the experimental results, the formula is in good agreement with the calculation results given by the author, which proves that the formula is correct and has a good safety reserve. It can be used to guide practical engineering.
【作者单位】：沈阳大学建筑工程学院;清华大学土木工程系;
【基金】：国家自然科学基金项目(51408371) 辽宁省优秀人才培育计划项目(2014020098) 沈阳市科技计划项目(F14-196-4-00)
【分类号】：TU391
【正文快照】： 建筑自产生以来就是人类生活重要的组成部分,但是在相当长一段时间里使用的都是石材和木材等[1].随着科技的发展,新型材料的出现和运用,使得建筑材料从石材、木材等转变为钢材、混凝土等.并且伴随着新型材料的出现,建筑结构形式也发生了很大的改变,出现了钢结构、钢筋混凝土结

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