底部加强型矩形钢管混凝土柱抗震性能试验与分析
|
摘要
提出了一种底部加强型矩形钢管混凝土柱,采取在柱底部区域钢板外侧贴焊钢板的构造措施,以提高其抗震耗能能力。进行了3个不同构造的矩形钢管混凝土柱模型的低周反复加载试验,模型1为普通矩形钢管混凝土柱,模型2为矩形截面底部垂直加载方向钢板外侧贴焊钢板的钢管混凝土柱,模型3为矩形截面底部双向外侧钢板均贴焊钢板的钢管混凝土柱。模型按1/5缩尺。分析了各模型的承载力、刚度及退化过程、延性、滞回耗能特性和破坏特征。给出了底部加强型矩形钢管混凝土柱正截面及斜截面承载力的计算公式,计算与实测结果符合较好。研究表明:所提出的底部加强型矩形钢管混凝土柱与普通矩形钢管混凝土柱相比,其承载力明显提高,延性和抗震耗能能力显著提高。
The bottom strengthened rectangular concrete filled steel tube(CFST) column was put forward.The bottom area of the rectangular column was welded with steel plates to improve its seismic energy dissipation capacity.Three 1/5 scaled column models with different construction measures were tested under horizontal low cyclic loading.Model 1 is a conventional rectangular CFST column;Model 2 is a rectangular CFST column welded with steel plates at the outer bottom part vertical to the direction of loading;Model 3 is a rectangular CFST column welded with steel plates around lateral side of the bottom of the column.The load-bearing capacity,stiffness and degradation process,ductility,hysteretic energy dissipation capacity and failure characteristics of the models were analyzed.The calculation formula of load-bearing capacity of bottom strengthened rectangular CFST column for normal section and oblique section was given,and the results agree well with those from the experiments.The study shows that the load-bearing capacity,ductility and seismic energy dissipation capacity of the bottom strengthened rectangular CFST column are improved obviously compared with the conventional rectangular CFST column.
The bottom strengthened rectangular concrete filled steel tube(CFST) column was put forward.The bottom area of the rectangular column was welded with steel plates to improve its seismic energy dissipation capacity.Three 1/5 scaled column models with different construction measures were tested under horizontal low cyclic loading.Model 1 is a conventional rectangular CFST column;Model 2 is a rectangular CFST column welded with steel plates at the outer bottom part vertical to the direction of loading;Model 3 is a rectangular CFST column welded with steel plates around lateral side of the bottom of the column.The load-bearing capacity,stiffness and degradation process,ductility,hysteretic energy dissipation capacity and failure characteristics of the models were analyzed.The calculation formula of load-bearing capacity of bottom strengthened rectangular CFST column for normal section and oblique section was given,and the results agree well with those from the experiments.The study shows that the load-bearing capacity,ductility and seismic energy dissipation capacity of the bottom strengthened rectangular CFST column are improved obviously compared with the conventional rectangular CFST column.
引文
[1]沈祖炎,黄奎生.矩形钢管混凝土轴心受力构件的设计方法[J].建筑结构,2005,35(01):3-4.Shen Zuyan,Huang Kuishen.Design method of axially loaded members of concrete-filled rectangular steel Tube[J].Building Structure,2005,35(01):3-4.
[2]杨有福,韩林海.矩形钢管混凝土构件抗弯力学性能的试验研究[J].地震工程与工程振动,2001,21(03):41-48.Yang Youfu,Hang Lihai.Experimental studies on behavior of eoneret-filled RHS members subjeeted to Pure bending[J].Journal of EarthquakeEngineering and Engineering Vibration,2001,21(03):41-48.
[3]韩林海,杨有福,刘威.长期荷载作用对矩形钢管混凝土轴心受压柱力学性能的影响研究[J].土木工程学报,2004,37(03):12-18.Han Linhai,Yang Youfu,Liu Wei.The behavior of concrete-filled steel tubular columns with rectangular section under of long-term loading[J].China Civil Engineering Journal,2004,37(03):12-18.
[4]周绪红,刘界鹏,张素梅.方钢管约束钢筋高强混凝土超短柱抗震性能试验研究[J].土木工程学报,2010,43(08):1-10.Zhou Xuhong,Liu Jiepeng,Zhang Sumei.Seismic behavior of ultra short columns of square tubed high strength reinforced concrete[J].ChinaCivil Engineering Journal,2010,43(08):1-10.
[5]马忠吉,乔雷涛,王伟,等.矩形钢管约束钢筋混凝土超短柱滞回性能试验[J].哈尔滨工业大学学报,2011,43(08):21-25.MA Zhongji,Qiao Leitao,Wang Wei.Experiment on the rectangular tubed RC ultra short columns under axial compression and lateral cyclic load[J].Journal of Harbin Institute of Technology,2011,43(08):21-25.
[6]李学平,吕西林,郭少春.反复荷载下矩形钢管混凝土柱的抗震性能Ⅰ:试验研究[J].地震工程与工程振动,2005,25(05):97-105.Li Xueping,Lu Xilin,Guo Shaochun.Seismic behavior of CFRT columns under cyclic loadingⅠ:experimental study[J].Journal of EarthquakeEngineering and Engineering Vibration,2005,25(05):97-105.
[7]李学平,吕西林,郭少春.反复荷载下矩形钢管混凝土柱的抗震性能Ⅱ:分析研究[J].地震工程与工程振动,2005,25(05):106-113.Li Xueping,Lu Xilin,Guo Shaochun.Seismic behavior of CFRT columns under cyclic loadingⅡ:analytical study[J].Journal of Earthquake En-gineering and Engineering Vibration,2005,25(05):106-113.
[8]吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能试验研究[J].建筑结构学报,2000,21(02):2-11.Lu Xilin,LU Weidong.Seismic Behavior of Conerete-filled Reetangular Steel Tubular Columns Under Cyclic Loading[J].Journal of BuildingStructures,2000,21(02):2-11.
[9]王来,王铁成,陈倩.低周反复荷载下方钢管混凝土框架抗震性能的试验研究[J].地震工程与工程振动,2003,23(03):113-117.Wang lai,Wang Tiecheng,Chen Qian.Experimental study on seismic performance of concrete-filled rectangular tubular frame under low-re-versed cyclic loading[J].Journal of Earthquake Engineering and Engineering Vibration,2003,23(03):113-117.
[10]曹万林,彭斌,王智慧,等.底部加强型多腔钢管混凝土巨型柱抗震性能试验研究[J].地震工程与工程振动,2012,32(2):120-129.CAO Wanlin,PENG Bin,WANG Zhihui,et al.Experimental research on seismic behavior of bottom strengthened multi-cell CFSJ mega-col-umns[J].Journal of Earthquake Engineering and Engineering Vibration,2012,32(2):120-129.
[11]CECS159:2004,矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.CECS159:2004,Technical Specification for Structures with Concrete-filled Rectangular Steel Tube Members[S].Beijing:China PlanningPress,2004.
[2]杨有福,韩林海.矩形钢管混凝土构件抗弯力学性能的试验研究[J].地震工程与工程振动,2001,21(03):41-48.Yang Youfu,Hang Lihai.Experimental studies on behavior of eoneret-filled RHS members subjeeted to Pure bending[J].Journal of EarthquakeEngineering and Engineering Vibration,2001,21(03):41-48.
[3]韩林海,杨有福,刘威.长期荷载作用对矩形钢管混凝土轴心受压柱力学性能的影响研究[J].土木工程学报,2004,37(03):12-18.Han Linhai,Yang Youfu,Liu Wei.The behavior of concrete-filled steel tubular columns with rectangular section under of long-term loading[J].China Civil Engineering Journal,2004,37(03):12-18.
[4]周绪红,刘界鹏,张素梅.方钢管约束钢筋高强混凝土超短柱抗震性能试验研究[J].土木工程学报,2010,43(08):1-10.Zhou Xuhong,Liu Jiepeng,Zhang Sumei.Seismic behavior of ultra short columns of square tubed high strength reinforced concrete[J].ChinaCivil Engineering Journal,2010,43(08):1-10.
[5]马忠吉,乔雷涛,王伟,等.矩形钢管约束钢筋混凝土超短柱滞回性能试验[J].哈尔滨工业大学学报,2011,43(08):21-25.MA Zhongji,Qiao Leitao,Wang Wei.Experiment on the rectangular tubed RC ultra short columns under axial compression and lateral cyclic load[J].Journal of Harbin Institute of Technology,2011,43(08):21-25.
[6]李学平,吕西林,郭少春.反复荷载下矩形钢管混凝土柱的抗震性能Ⅰ:试验研究[J].地震工程与工程振动,2005,25(05):97-105.Li Xueping,Lu Xilin,Guo Shaochun.Seismic behavior of CFRT columns under cyclic loadingⅠ:experimental study[J].Journal of EarthquakeEngineering and Engineering Vibration,2005,25(05):97-105.
[7]李学平,吕西林,郭少春.反复荷载下矩形钢管混凝土柱的抗震性能Ⅱ:分析研究[J].地震工程与工程振动,2005,25(05):106-113.Li Xueping,Lu Xilin,Guo Shaochun.Seismic behavior of CFRT columns under cyclic loadingⅡ:analytical study[J].Journal of Earthquake En-gineering and Engineering Vibration,2005,25(05):106-113.
[8]吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能试验研究[J].建筑结构学报,2000,21(02):2-11.Lu Xilin,LU Weidong.Seismic Behavior of Conerete-filled Reetangular Steel Tubular Columns Under Cyclic Loading[J].Journal of BuildingStructures,2000,21(02):2-11.
[9]王来,王铁成,陈倩.低周反复荷载下方钢管混凝土框架抗震性能的试验研究[J].地震工程与工程振动,2003,23(03):113-117.Wang lai,Wang Tiecheng,Chen Qian.Experimental study on seismic performance of concrete-filled rectangular tubular frame under low-re-versed cyclic loading[J].Journal of Earthquake Engineering and Engineering Vibration,2003,23(03):113-117.
[10]曹万林,彭斌,王智慧,等.底部加强型多腔钢管混凝土巨型柱抗震性能试验研究[J].地震工程与工程振动,2012,32(2):120-129.CAO Wanlin,PENG Bin,WANG Zhihui,et al.Experimental research on seismic behavior of bottom strengthened multi-cell CFSJ mega-col-umns[J].Journal of Earthquake Engineering and Engineering Vibration,2012,32(2):120-129.
[11]CECS159:2004,矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.CECS159:2004,Technical Specification for Structures with Concrete-filled Rectangular Steel Tube Members[S].Beijing:China PlanningPress,2004.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心