钢管橡胶混凝土柱轴压试验研究及力学性能分析
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摘要
完成了16个钢管橡胶混凝土柱轴压试验,考虑再生橡胶取代率、再生橡胶粒径大小为变化参数,对其进行静力试验。试验表明:试件最终的破坏形态呈腰鼓状斜剪压破坏;橡胶的掺入使试件的延性增强;随着橡胶替代率的增加,钢管橡胶混凝土柱的承载力不断降低;橡胶粒径越大,钢管橡胶混凝土柱的承载力越小。通过现有规范或规程来计算承载力,并与钢管橡胶混凝土柱实验值进行了对比分析。
A series of tests on rubber concrete filled circle steel tube columns were conducted.Sixteen specimens were tested to investigate the influence of the replacement ratio and particle size of recycled rubber. The test results show that the failure mode of the rubber concrete filled steel tube column is drum-like under oblique shear pressure. The adding of rubber enhances the ductility of the specimen. With the increase of the replacement ratio of recycled rubber,the bearing capacity of the column decreases. The larger the particle sizes of rubber, the smaller the bearing capacity.Comparisons between the calculated ultimate strength of the column according to the codes and the measured value are carried out.
A series of tests on rubber concrete filled circle steel tube columns were conducted.Sixteen specimens were tested to investigate the influence of the replacement ratio and particle size of recycled rubber. The test results show that the failure mode of the rubber concrete filled steel tube column is drum-like under oblique shear pressure. The adding of rubber enhances the ductility of the specimen. With the increase of the replacement ratio of recycled rubber,the bearing capacity of the column decreases. The larger the particle sizes of rubber, the smaller the bearing capacity.Comparisons between the calculated ultimate strength of the column according to the codes and the measured value are carried out.
引文
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[10]张向冈,陈宗平,薛建阳,等.钢管再生混凝土轴压长柱试验研究及力学性能分析[J].建筑结构学报,2012(7):12-20.
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[13]CECS 159:2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.
[14]Eurocode 4(EC 4).Design of steel and concrete structures-Part1-1:General rules and rules for building[S].Brusseles,European Committee for Standardization,2004.
[15]ACI Committee 318(ACI 318-05).Building code requirements for structural concrete structures(ACI 209R-92)[S].USA:American Concrete Institute,Farmington Hills,Mich,2005.
[16]BS 5400 Steel,concrete and composite bridges:part5:code of practice for design of composite bridges[S].London:British Standards Institutions,2005.
[17]ANSI/AISC 360-05.Specification for structural steel building[S].USA:American Institute of Steel Construction(AISC),Chicago,2005.
[2]龙跃凌,蔡健,王英涛,等.带约束拉杆矩形钢管混凝土短柱抗震性能试验研究[J].建筑结构学报,37(2):133-141.
[3]李兵,孟爽,杨永生.不同参数变化对方钢管再生混凝土柱抗震性能的影响[J].沈阳建筑大学学报(自然科学版),2015,31(6):1066-1074.
[4]张俊光,陈建华.设加劲肋钢管混凝土轴压短柱试验研究及有限元分析[J].公路交通科技(应用技术版),2015,132(12):199-203.
[5]黄宏,朱彦奇,陈梦成,等.矩形中空夹层再生混凝土钢管短柱轴压试验研究[J].实验力学,2016,31(1):67-74.
[6]王军军,张仪华,秦文轩,等.废旧橡胶混凝土力学性能的研究[J].硅酸盐通报,2016,35(7):2219-2223.
[7]付传清,范少锋,邓学斌,等.不同龄期橡胶混凝土力学性能试验研究[J].混凝土,2016,324(10):64-68.
[8]许金余,李赞成,罗鑫,等.橡胶混凝土的静动压缩强度特性的对比研究[J].建筑材料学报,2014,17(6):1015-1019.
[9]李军涛,陈宗平,刘峰.钢管再生混凝土轴压性能试验研究[J].混凝土,2012(7):13-15.
[10]张向冈,陈宗平,薛建阳,等.钢管再生混凝土轴压长柱试验研究及力学性能分析[J].建筑结构学报,2012(7):12-20.
[11]AIJ.Recommendations for design and construction of concrete filled steel tubular structures[S].Tokyo:Architectural Institute of Japan,1997.
[12]DBJ 13-51—2003钢管混凝土结构技术规程[S].北京:中国建筑工业出版社,2003.
[13]CECS 159:2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.
[14]Eurocode 4(EC 4).Design of steel and concrete structures-Part1-1:General rules and rules for building[S].Brusseles,European Committee for Standardization,2004.
[15]ACI Committee 318(ACI 318-05).Building code requirements for structural concrete structures(ACI 209R-92)[S].USA:American Concrete Institute,Farmington Hills,Mich,2005.
[16]BS 5400 Steel,concrete and composite bridges:part5:code of practice for design of composite bridges[S].London:British Standards Institutions,2005.
[17]ANSI/AISC 360-05.Specification for structural steel building[S].USA:American Institute of Steel Construction(AISC),Chicago,2005.