无明显屈服特征构件屈服点的确定与评价
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摘要
为了深入地认识和理解无明显屈服特征构件的屈服点确定方法,首先,揭示了已有的屈服点确定方法的基本原理;其次,对等能量法、最远点法和双直线能量等效面积法的计算方法和计算步骤进行了简化和改进;再次,比较不同屈服点确定方法之间的关系和计算结果,对计算结果存在的差异进行了理论分析;最后,通过实例验证了理论分析的正确性,并对不同屈服点确定方法进行了分析和评价。通过理论分析和实例验证,得出结论:屈服位移由大小依次为等能量法、最远点法和双直线能量等效面积法;计算工作量由大到小依次为双直线能量等效面积法、最远点法、等能量法。
It is significant to derive the yield point of structural components without obvious yield features in order to evaluate the ductility and energy dissipation capacity of these structures. However, there is no unified and definite expression of yield point determination methods for structural components without obvious yield features. For above problems, firstly, the existing methods employed to determine the yield point were summarized and the basic principles of these methods were revealed. Secondly, calculation method and calculation procedure were simplified and improved. Thirdly, theoretical analysis of relationship and reasons of different calculation results among above methods were carried out. Finally, the correctness of theoretical analysis results was verified by an example. The conclusion is obtained that the yield displacement calculated by above three methods from the size followed by equal energy method, the furthest point method, and bilinear energy equivalent area method; the amount of the calculation work from the size followed by bilinear energy equivalent area method, the furthest point method, and the equal energy method.
It is significant to derive the yield point of structural components without obvious yield features in order to evaluate the ductility and energy dissipation capacity of these structures. However, there is no unified and definite expression of yield point determination methods for structural components without obvious yield features. For above problems, firstly, the existing methods employed to determine the yield point were summarized and the basic principles of these methods were revealed. Secondly, calculation method and calculation procedure were simplified and improved. Thirdly, theoretical analysis of relationship and reasons of different calculation results among above methods were carried out. Finally, the correctness of theoretical analysis results was verified by an example. The conclusion is obtained that the yield displacement calculated by above three methods from the size followed by equal energy method, the furthest point method, and bilinear energy equivalent area method; the amount of the calculation work from the size followed by bilinear energy equivalent area method, the furthest point method, and the equal energy method.
引文
[1] 王震,王修信,徐赵东,等.高轴压比下内置闭合钢管的钢骨砼桥墩曲率延性系数[J].东南大学学报:自然科学版,2015,45(3):563-568.WANG Zhen,WANG Xiuxin,XU Zhaodong,et al.Curvature ductility factor of steel reinforced concrete piers with closed steel tubes under high axial load ratio[J].Journal of Southeast University:Natural Science Edition,2015,45(3):563-568.(in Chinese)
[2] 童根树,叶赟,张磊,等.承载力退化体系中各延性系数下的地震力计算[J].同济大学学报:自然科学版,2013,41(8):1133-1139,1157.TONG Genshu,YE Yun,ZHANG Lei,et al.Seismic force with different ductility factor in strength degrading system[J].Journal of Tongji University,2013,41(8):1133-1139,1157.(in Chinese)
[3] 郑山锁,王帆,魏立,等.型钢高强混凝土框架柱位移延性系数研究[J].工业建筑,2014,(12):137-141.ZHENG Shansuo,WANGg Fan,WEI LI,et al.Study of displacement ductility factor of steel reinforced high strength concrete frame columns[J].Industrial Construction,2014,(12):137-141.(in Chinese)
[4] 赵花静,梁兴文,宋璨,等.高强混凝土剪力墙屈服位移计算方法[J].土木建筑与环境工程,2014,36(3):80-85.ZHAO Huajing,LIANG Xingwen,SONG Can.Yield displacement calculation method of high-strength concrete shear wall[J].Applied Mechanics & Materials,2013,353-356(3):3382-3386.(in Chinese)
[5] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:163-337.GUO Zhenhai,SHI Xudong.Theory and analysis of reinforced concrete[M].Beijing:Tsinghua University Press,2003:163-337.(in Chinese)
[6] Feng P,Cheng S,Bai Y,et al.Mechanical behavior of concrete-filled square steel tube with FRP-confined concrete core subjected to axial compression[J].Composite Structures,2015,123:312-324.
[7] 冯鹏,强翰霖,叶列平.材料、构件、结构的“屈服点”定义与讨论[J].工程力学,2017,34(3):36-46.FENG Peng,QIANG Hanlin,YE Lieping.Discussion and definition on yield points of materials,members and structures[J] Engineering Mechanics,2017,34(3):36-46.(in Chinese)
[8] 张向冈,陈宗平,薛建阳,等.圆钢管再生混凝土柱抗震性能影响因素有限元分析[J].世界地震工程,2017,33(2):211-219.ZHANG Xianggang,CHEN Zongping,XUE Jianyang,et al.Finite element analysis of seismic performance influence factor for recycled aggregate concrete filled circular steel tube column[J] World Earthquake Engineering,2017,33(2):211-219.(in Chinese)
[9] 侯炜,陈彬,郭子雄,等.内嵌钢板混凝土组合连梁抗震性能试验研究[J].土木工程学报,2017(2):9-18.HOU Wei,CHEN Bin,GUO ZIxiong,et al.Experimental study on seismic behavior of embedded steel plate reinforced concrete coupling beams[J].China Civil Engineering Journal,2017,50(2):9-18.(in Chinese)
[10] 倪诗阁.结构试验中屈服变形的确定方法[J].工业建筑,1996,26(8):45-50.NI Shige.A method to verify the yield deformation in structure test[J].Industrial Construction,1996,26(8):45-50.(in Chinese)
[11] 徐绩青.延性系数确定方法的探讨[J].水运工程,2004(9):14-17.XU Jiqing.Method of determining ductile coefficient[J].Port & Waterway Engineering,2004(9):14-17.(in Chinese)
[12] 叶列平,方团卿,杨勇新,等.碳纤维布在混凝土梁受弯加固中抗剥离性能的试验研究[J].建筑结构,2003(2):61-65.YE Lieping.FANG Tuanqing,YANG Yongxin,et al.Experimental researh of flexural debonding performances about RC beams strengthened with CFRP sheets[J].Building Structure,2003(2):61-65.(in Chinese)
[13] 冯鹏,陆新征,叶列平.纤维增强复合材料建设工程应用技术[M].北京:中国建筑工业出版社,2011:41-43FENG Peng,LU Xinzheng,YE Lieping.Application of fiber reinforced polymer in construction[M].Beijing:Construction Industry Press of China,2011:41-43(in Chinese)
[14] Yuan Weibin,YANG Junjie.Experimental and numerical studies of short concrete-filled double skin composite tube columns under axially compressive loads[J].Journal of Constructional Steel Research,2013,80:23-31.
[2] 童根树,叶赟,张磊,等.承载力退化体系中各延性系数下的地震力计算[J].同济大学学报:自然科学版,2013,41(8):1133-1139,1157.TONG Genshu,YE Yun,ZHANG Lei,et al.Seismic force with different ductility factor in strength degrading system[J].Journal of Tongji University,2013,41(8):1133-1139,1157.(in Chinese)
[3] 郑山锁,王帆,魏立,等.型钢高强混凝土框架柱位移延性系数研究[J].工业建筑,2014,(12):137-141.ZHENG Shansuo,WANGg Fan,WEI LI,et al.Study of displacement ductility factor of steel reinforced high strength concrete frame columns[J].Industrial Construction,2014,(12):137-141.(in Chinese)
[4] 赵花静,梁兴文,宋璨,等.高强混凝土剪力墙屈服位移计算方法[J].土木建筑与环境工程,2014,36(3):80-85.ZHAO Huajing,LIANG Xingwen,SONG Can.Yield displacement calculation method of high-strength concrete shear wall[J].Applied Mechanics & Materials,2013,353-356(3):3382-3386.(in Chinese)
[5] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:163-337.GUO Zhenhai,SHI Xudong.Theory and analysis of reinforced concrete[M].Beijing:Tsinghua University Press,2003:163-337.(in Chinese)
[6] Feng P,Cheng S,Bai Y,et al.Mechanical behavior of concrete-filled square steel tube with FRP-confined concrete core subjected to axial compression[J].Composite Structures,2015,123:312-324.
[7] 冯鹏,强翰霖,叶列平.材料、构件、结构的“屈服点”定义与讨论[J].工程力学,2017,34(3):36-46.FENG Peng,QIANG Hanlin,YE Lieping.Discussion and definition on yield points of materials,members and structures[J] Engineering Mechanics,2017,34(3):36-46.(in Chinese)
[8] 张向冈,陈宗平,薛建阳,等.圆钢管再生混凝土柱抗震性能影响因素有限元分析[J].世界地震工程,2017,33(2):211-219.ZHANG Xianggang,CHEN Zongping,XUE Jianyang,et al.Finite element analysis of seismic performance influence factor for recycled aggregate concrete filled circular steel tube column[J] World Earthquake Engineering,2017,33(2):211-219.(in Chinese)
[9] 侯炜,陈彬,郭子雄,等.内嵌钢板混凝土组合连梁抗震性能试验研究[J].土木工程学报,2017(2):9-18.HOU Wei,CHEN Bin,GUO ZIxiong,et al.Experimental study on seismic behavior of embedded steel plate reinforced concrete coupling beams[J].China Civil Engineering Journal,2017,50(2):9-18.(in Chinese)
[10] 倪诗阁.结构试验中屈服变形的确定方法[J].工业建筑,1996,26(8):45-50.NI Shige.A method to verify the yield deformation in structure test[J].Industrial Construction,1996,26(8):45-50.(in Chinese)
[11] 徐绩青.延性系数确定方法的探讨[J].水运工程,2004(9):14-17.XU Jiqing.Method of determining ductile coefficient[J].Port & Waterway Engineering,2004(9):14-17.(in Chinese)
[12] 叶列平,方团卿,杨勇新,等.碳纤维布在混凝土梁受弯加固中抗剥离性能的试验研究[J].建筑结构,2003(2):61-65.YE Lieping.FANG Tuanqing,YANG Yongxin,et al.Experimental researh of flexural debonding performances about RC beams strengthened with CFRP sheets[J].Building Structure,2003(2):61-65.(in Chinese)
[13] 冯鹏,陆新征,叶列平.纤维增强复合材料建设工程应用技术[M].北京:中国建筑工业出版社,2011:41-43FENG Peng,LU Xinzheng,YE Lieping.Application of fiber reinforced polymer in construction[M].Beijing:Construction Industry Press of China,2011:41-43(in Chinese)
[14] Yuan Weibin,YANG Junjie.Experimental and numerical studies of short concrete-filled double skin composite tube columns under axially compressive loads[J].Journal of Constructional Steel Research,2013,80:23-31.