钢混凝土组合截面外包薄钢组合管拟静力抗震性能试验研究
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摘要
钢混凝土组合截面外包薄钢组合管具有良好的防腐蚀性能和力学性能,可用于海洋、水下以及具有腐蚀性环境中的管道运输或结构受力构件中。利用截面分层法设计加工满足受弯承载能力的试验试件,并对其进行拟静力抗震性能试验,研究分析构件几何特征和填充混凝土强度对其耗能减震能力的影响。结果表明:各试验试件的荷载-位移滞回曲线图形均比较饱满,钢混凝土组合截面外包薄钢组合管具有良好的耗能减震能力。通过提高构件"约束效应系数"的方法可优化构件的截面设计。试件几何特征及填充混凝土的强度对试件的力学性能有较大影响,长细比较大的试件在往复加载制度下屈服位移明显减小。
Steel-concrete composite pipe wrapped with thin steel has good corrosion resistance and mechanical properties,and can be used in the marine,underwater and corrosive environment for the pipeline transportation or structural components. By using the cross-section method,the specimens weredesigned to meet the bending bearing capacity. The influenceof the geometric characteristics of the components and the strength of concrete on their seismic capacity was analyzed by means of the quasi-static experiments. The results show that the load-displacement hysteretic curves of the test specimens were plump. The steel-concrete composite pipe wrapped with thin steel hascertain energy dissipation capacity. The section design of the components can be optimized by increasing the constrainteffect coefficient. The geometric characteristics of the specimens and the strength of the filled concrete have great influence on the mechanical properties of the specimens. The yield displacement of the specimens with a large slenderness ratio decreases obviously under the cyclic loading.
Steel-concrete composite pipe wrapped with thin steel has good corrosion resistance and mechanical properties,and can be used in the marine,underwater and corrosive environment for the pipeline transportation or structural components. By using the cross-section method,the specimens weredesigned to meet the bending bearing capacity. The influenceof the geometric characteristics of the components and the strength of concrete on their seismic capacity was analyzed by means of the quasi-static experiments. The results show that the load-displacement hysteretic curves of the test specimens were plump. The steel-concrete composite pipe wrapped with thin steel hascertain energy dissipation capacity. The section design of the components can be optimized by increasing the constrainteffect coefficient. The geometric characteristics of the specimens and the strength of the filled concrete have great influence on the mechanical properties of the specimens. The yield displacement of the specimens with a large slenderness ratio decreases obviously under the cyclic loading.
引文
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[15]刘祖强,薛建阳,等.损伤型钢混凝土异形柱框架抗震性能试验研究[J].土木工程学报,2013,46(8):67-72.LIU Zuqiang,XUE Jianyang,et al. Experimental study on seismic behaviors of damaged steel reinforced concrete frame with special-shaped columns[J]. China Civil Engineering Journal,2013,46(8):67-72.(in Chinese)
[2]方小丹,林斯嘉.复式钢管高强混凝土柱轴压试验研究[J].建筑结构学报,2014,35(4):236-245.FANG Xiaodan,LIN Sijia. Axial compressive test of columns with multi barrel tube-confined high performance concrete[J]. Journal of Building Structures,2014,35(4):236-245.(in Chinese)
[3]江韩,储良成,左江,等.轴心受压双钢管混凝土短柱正截面受压承载力理论分析及试验研究[J].建筑结构学报,2008,29(4):96-105.JIANG Han,CHU Liangchen,ZUO Jiang,et al. Theoretical analysis and experimental study onnormal cross-section load-carrying capacity for concrete-filled double Steel tubular short columns subjected to axial compression load[J]. Journal of Building Structures,2008,29(4):96-105.
[4] ZHOU Feng,XU Wenchao. Cyclic loading tests on concrete-filled double-skin(SHS outer and CHS inner)stainless steel tubular beam-columns[J]. Engineering Structures,2016,127(9):304-318.
[5] ELCHALAKANI M,ZHAO XL,GRZEBIETAR. Tests on concrete filled double-skin(CHS outer and SHS inner)composite short columns under axial compression[J]. Thin-walled Structures,2002,40(5):415-441.
[6]张耀春,周绪红.钢结构设计原理[M].北京:高等教育出版社,2013:39-85.ZHANG Yaochun,ZHOU Xuhong. Design principle of steel structure[J]. Beijing:Higher Education Press,2013:39-85.(in Chinese)
[7]聂建国,廖彦波.双圆夹层钢管混凝土柱轴压承载力计算[J].清华大学学报(自然科学版),2008,48(3):312-315.NIE Jianguo,LIAO Yanbo. Bearing capacity calculations for concrete filled double skin tubes[J]. J Tsinghua Univ(Sci&Tech),2008,48(3):312-315.(in Chinese)
[8]曹明.不锈钢管-混凝土-钢管中空夹层组合结构抗弯力学性能研究[D].太原:太原理工大学,2015.CAO Ming. Flexural behavior of stainless steel-conctete-steel concrete filled double skin steel tube[D]. Taiyuan:Taiyuan University of Technology,2015.(in Chinese)
[9]钱稼茹,刘明学. FRP-混凝土-钢双壁空心管柱抗震性能试验[J].土木工程学报,2008,(3):29-36.QIAN Jiaru,LIU Mingxue. Tests of seismic behavior of FRP-concrete-steel double-skin tubular columns[J]. China Civil Engineering Journal,2008,(3):29-36.(in Chinese)
[10]查晓雄,李卫秋,余敏.空心普通和再生钢管混凝土柱抗震性能研究[J].建筑钢结构进展,2012,14(3):27-35.ZHA Xiaoxiong,LI Weiqiu,YU Min. Seismic behavior study of hollow ordinary concrete and recycled aggregate concrete filled steel tubular(CFST)[J]. Progress in Steel Building Structure,2012,14(3):27-35.(in Chinese)
[11]刘永超.复式钢管混凝土轴压及抗震性能有限元分析[D].西安:长安大学,2015.LIU Yongchao. Finite element analysis on axial compression and seismic behaviors of multibarrel tube-confined concrete[D]. Xi'an:Chang'an University,2015.(in Chinese)
[12]黄宏,孙微,陈梦成,等.圆形截面中空夹层钢管混凝土短柱复合受力试验研究[J].建筑结构学报,2015,(9):53-59.HUANG Hong,SUN Wei,CHEN Mengcheng,et al. Experimental study on concrete-filled double-skin circular steel tubes under combined loadings[J],Journal of Building Structures,2015,(9):53-59.(in Chinese)
[13] KIM Sang-Hyo,KIM Kun-Soo,SEJUN Park,et al. Comparison of hysteretic performance of stubby Y-type perfobond rib and stud shear connectors[J]. Engineering Structures,2017(5):114-124.
[14]高剑平,吴永根,霍静思.薄壁波纹钢管混凝土柱滞回性能试验研究[J].世界地震工程,2012,28(3):34-42.GAO Jianping,WU Yonggen,HUO Jingsi. Experimental study on the hysteretic behaviors of thin-walled corrugated concrete-filled steel tube column[J]. World Earthquake Engineering,2012,28(3):34-42.(in Chinese)
[15]刘祖强,薛建阳,等.损伤型钢混凝土异形柱框架抗震性能试验研究[J].土木工程学报,2013,46(8):67-72.LIU Zuqiang,XUE Jianyang,et al. Experimental study on seismic behaviors of damaged steel reinforced concrete frame with special-shaped columns[J]. China Civil Engineering Journal,2013,46(8):67-72.(in Chinese)