内配格构式角钢圆钢管混凝土梁受弯承载力试验及计算
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摘要
通过对内配格构式角钢钢管混凝土试件进行四点弯曲试验,获得了试件的荷载-位移曲线和受弯承载力等试验数据。在试验的基础上,通过极限平衡法推导了该类型试件的受弯承载力计算式,并将公式计算结果与试验结果进行了对比。研究结果表明:内配角钢的存在明显地提高了试件的受弯承载力,且试件的受弯承载力随着内配角钢面积的增加而提高;基于极限平衡法提出的承载力计算式可以比较准确且偏于安全地预测该类型试件的受弯承载力。
Based on four-point bending test of concrete-filled steel tubes with latticed steel angles inside, the load-displacement curve and ultimate bending capacity of specimen were obtained. On the basis of test, the limit equilibrium method was used to deduce formula of the bending capacity, the calculation results of the limit equilibrium method were compared with the experiment results. Research results showed that the existence of the internal steel angles could increase the bending capacity obviously, specimen with larger area of steel angles would get larger bending capacity; the calculation formula obtained from the limit equilibrium method was accurate and reliable in predicting the bending capacity of this type of component.
Based on four-point bending test of concrete-filled steel tubes with latticed steel angles inside, the load-displacement curve and ultimate bending capacity of specimen were obtained. On the basis of test, the limit equilibrium method was used to deduce formula of the bending capacity, the calculation results of the limit equilibrium method were compared with the experiment results. Research results showed that the existence of the internal steel angles could increase the bending capacity obviously, specimen with larger area of steel angles would get larger bending capacity; the calculation formula obtained from the limit equilibrium method was accurate and reliable in predicting the bending capacity of this type of component.
引文
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[2] 刘晓.钢管钢骨高强混凝土组合构件力学性能研究[D].沈阳:东北大学,2009.
[3] 王亚伟. 内配型钢的钢管混凝土压弯构件力学性能研究[D]. 兰州:兰州理工大学, 2013.
[4] 赵大洲.钢骨-钢管高强混凝土组合柱力学性能的研究[D].大连:大连理工大学,2003.
[5] 史艳莉, 张海龙, 王文达, 等. 内置十字钢骨圆钢管混凝土构件受弯性能有限元分析[J]. 建筑结构学报, 2015(增刊): 318-323.
[6] 魏华, 张斌, 王海军, 等. 配筋圆钢管混凝土梁受弯力学性能的试验研究[J]. 沈阳工业大学学报, 2006, 28(4): 461-465.
[7] 张晓伟.配筋钢管混凝土柱力学性能试验和理论研究[D].哈尔滨:哈尔滨工业大学,2012.
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[9] HAN L H. Flexural Behaviour of Concrete-Filled Steel Tubes[J]. Journal of Constructional Steel Research, 2004, 60(2):313-337.
[10] 王维肖. 配加劲件钢管混凝土抗弯抗拉及复杂应力下统一理论研究[D].哈尔滨:哈尔滨工业大学,2015.
[11] 中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936—2014[S]. 北京: 中国建筑工业出版社, 2014.
[2] 刘晓.钢管钢骨高强混凝土组合构件力学性能研究[D].沈阳:东北大学,2009.
[3] 王亚伟. 内配型钢的钢管混凝土压弯构件力学性能研究[D]. 兰州:兰州理工大学, 2013.
[4] 赵大洲.钢骨-钢管高强混凝土组合柱力学性能的研究[D].大连:大连理工大学,2003.
[5] 史艳莉, 张海龙, 王文达, 等. 内置十字钢骨圆钢管混凝土构件受弯性能有限元分析[J]. 建筑结构学报, 2015(增刊): 318-323.
[6] 魏华, 张斌, 王海军, 等. 配筋圆钢管混凝土梁受弯力学性能的试验研究[J]. 沈阳工业大学学报, 2006, 28(4): 461-465.
[7] 张晓伟.配筋钢管混凝土柱力学性能试验和理论研究[D].哈尔滨:哈尔滨工业大学,2012.
[8] 王宁.配筋钢管混凝土构件静力与动力性能研究[D].哈尔滨:哈尔滨工业大学,2013.
[9] HAN L H. Flexural Behaviour of Concrete-Filled Steel Tubes[J]. Journal of Constructional Steel Research, 2004, 60(2):313-337.
[10] 王维肖. 配加劲件钢管混凝土抗弯抗拉及复杂应力下统一理论研究[D].哈尔滨:哈尔滨工业大学,2015.
[11] 中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936—2014[S]. 北京: 中国建筑工业出版社, 2014.