带钢板暗支撑混凝土核心筒有效翼缘宽度分析
|
摘要
利用有限元软件ABAQUS对带钢板暗支撑混凝土核心筒进行模拟,计算结果与试验结果吻合较好.在此基础上分析了不同荷载步(位移角)、高宽比、连梁因素、角柱和暗柱型钢率以及暗支撑配钢率对剪力滞后效应的影响,得出了各工况下有效翼缘宽度(最不利情况).结果表明,有效翼缘宽度be在核心筒接近屈服时最小.剪力滞后效应随着高宽比的增加而减弱,be增加.连梁纵筋率及配板率对be的影响甚小,跨高比影响较大,be与之呈正相关.轴压比增大时,有效翼缘宽度增加.角柱型钢率、暗支撑配钢率及暗柱型钢率亦能影响有效翼缘宽度,前两者增加有助于be增加,后者效果较小.
The concrete core walls with steel plate bracings are simulated by finite element software ABAQUS,and the simulated results are in good agreement with the test results. The effects of loading process,aspect ratio,coupling beam steel ratio,corner column steel ratio,concealed column steel ratio and concealed bracing steel ratio for the shear lag are discussed, and the minimum effective flange width for various conditions is obtained. The results show that the effective flange width bereaches the minimum value when the core wall yields. The shear lag effect weakens as long as the aspect ratio increases, and thus the value of beincreases. The reinforcement ratio and steel ratio have little impact on be,but beincreases with the effect of span-depth ratio of the coupling beam. The axial load ratio is also helpful for the growth of be. Increasing the steel ratio of the corner column and concealed bracing increases be,but the effect of the concealed column steel ratio is not significant.
The concrete core walls with steel plate bracings are simulated by finite element software ABAQUS,and the simulated results are in good agreement with the test results. The effects of loading process,aspect ratio,coupling beam steel ratio,corner column steel ratio,concealed column steel ratio and concealed bracing steel ratio for the shear lag are discussed, and the minimum effective flange width for various conditions is obtained. The results show that the effective flange width bereaches the minimum value when the core wall yields. The shear lag effect weakens as long as the aspect ratio increases, and thus the value of beincreases. The reinforcement ratio and steel ratio have little impact on be,but beincreases with the effect of span-depth ratio of the coupling beam. The axial load ratio is also helpful for the growth of be. Increasing the steel ratio of the corner column and concealed bracing increases be,but the effect of the concealed column steel ratio is not significant.
引文
[1]甘亚南,石飞停.梯形箱梁剪力滞后效应的精细化分析[J].计算力学学报,2014,31(3):351—356.GAN Y N,SHI F T. The delicate analysis of shear lag effect on trapezoidal box girder[J]. Chinese Journal of Computational Mechanics,2014,31(3):351—356.(In Chinese)
[2]韦成龙,李斌,曾庆元.变截面连续箱梁桥剪力滞及剪切变形双重效应分析的传递矩阵法[J].工程力学,2008,25(9):111—117.WEI C L,LI B,ZENG Q Y. Transfer matrix method considering both shear lag and shear deformation effects in non-uniform continuous box girder[J]. Engineering Mechanics,2008,25(9):111—117.(In Chinese)
[3] SUN F F,BURSI O S,ASCE A M. Displacement-based and twofield mixed variational formulations for composite beams with shear lag[J]. Journal of Engineering Mechanics,2005,131(2):199—210.
[4]聂建国,王宇航.钢-混凝土组合梁混凝土翼板开洞截面有效翼缘宽度分析[J].建筑结构,2010,40(4):72—75.NIE J G,WANG Y H. Analysis of effective flange width on composite steel-concrete beams with openings in concrete slab[J].Building Structure,2010,40(4):72—75.(In Chinese)
[5]吕西林,李俊兰.钢筋混凝土核心筒体抗震性能试验研究[J].地震工程与工程振动,2002,22(3):42—50.L譈X L,LI J L. Seismic behavior of reinforced concrete core walls subjected to cyclic loading[J]. Earthquake Engineering and Engineering Vibration,2002,22(3):42—50.(In Chinese)
[6]杜修力,贾鹏,赵均.不同连梁跨高比混凝土核心筒抗震性能试验研究[J].建筑结构学报,2009,30(S):5—9.DU X L,JIA P,ZHAO J. Experimental study on seismic behavior of reinforced concrete core walls with various span-depth ratio of coupling beam[J]. Journal of Building Structures,2009,30(S):5—9.(In Chinese)
[7]史庆轩,侯炜,刘飞,等.钢筋混凝土核心筒抗震性能试验研究[J].建筑结构学报,2011,32(10):119—129.SHI Q X,HOU W,LIU F,et al. Experiment on seismic behavior of reinforced concrete core walls under low cycle reversed loading[J].Journal of Building Structures,2011,32(10):119—129.(In Chinese)
[8]汪梦甫,陈兵.带混合暗支撑的钢筋混凝土剪力滞后效应分析[J].力学季刊,2015,36(3):493-501.WANG M F,CHEN B. Analysis of the effect of shear lag of reinforce concrete core walls with mixed concealed bracings[J].Chinese Quarterly of Mechanics,2015,36(3):493—501.(In Chinese)
[9]史庆轩,王斌,郑晓龙,等.T形截面带翼缘剪力墙剪滞效应分析及有效翼缘宽度讨论[J].建筑结构,2014,44(22):67—71.SHI Q X,WANG B,ZHENG X L,et al. Shear lag effect analysis and effective flange width study of the T-shaped shear wall with flange[J]. Building Structure,2014,44(22):67—71.(In Chinese)
[10] JGJ3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011:77—106.JGJ3—2010 Technical specification for concrete structures of tall buiding[S]. Beijing:China Architecture and Building Press,2011:77—106.(In Chinese)
[11]曹万林,黄选明,卢智成,等.钢筋混凝土带暗支撑核心筒体抗震性能试验研究[J].地震工程与工程振动,2005,2(3):81—86.CAO W L,HUANG X M,LU Z C,et al. Experimental study on seismic behavior of reinforced concrete core walls with concealed bracings[J]. Earthquake Engineering and Engineering Vibration,2005,2(3):81—86.(In Chinese)
[12]董宏英,耿海霞,张建伟,等.钢管混凝土叠合柱边框组合核心筒抗震性能试验研究[J].北京工业大学学报(自然科学版),2011,37(11):1720—1728.DONG H Y,GENG H X,ZHANG J W,et al.Experimental study on seismic behavior of composite core walls with Steel tube-reinforced concrete columns[J]. Journal of Beijing University of Technology(Natural Sciences),2011,37(11):1720—1728.(In Chinese)
[13]张建伟,耿海霞,曹万林,等.叠合柱边框内藏钢桁架带洞口组合核心筒抗震性能研究[J].北京工业大学学报(自然科学版),2011,37(11):1668—1676.ZHANG J W,GENG H X,CAO W L,et al. Seismic performance of composite core walls with steel tube-reinforced concrete columns and concealed steel truss[J]. Journal of Beijing University of Technology(Natural Sciences),2011,37(11):1668—1676.(In Chinese)
[14]宋兴禹,汪梦甫.高阻尼混凝土混合暗支撑双肢剪力墙试验研究[J].湖南大学学报(自然科学版),2013,40(4):15—19.SONG X Y,WANG M F. Experimental study on seismic performance of high damping concrete coupled shear wall with enhanced concealed bracings[J]. Journal of Hunan University(Natural Sciences),2013,40(4):15—19.(In Chinese)
[15]汪梦甫,宋兴禹.小高跨比连梁混合暗支撑高阻尼混凝土联肢剪力墙试验研究[J].地震工程与工程振动,2013,33(3):125—132.WANG M F,SONG X Y. Experimental study on seismic performance of high damping concrete coupled shear wall with mixed concealed bracings and coupling beams of small span-depth ratios[J]. Earthquake Engineering and Engineering Vibration,2013,33(3):125—132.(In Chinese)
[16]汪梦甫,王义俊.高阻尼混凝土带钢板暗支撑双肢剪力墙抗震性能试验研究[J].工程力学,2017,34(1):204—212.WANG M F,WANG Y J. Experimental study on seismic performance of high damping concrete coupled shear walls with steel plate concealed bracings[J]. Engineering Mechanics,2017,34(1):204—212.(In Chinese)
[17] LAM W Y. Plate-reinforced composite coupling beams:experimental and numerical studies[D]. Hong Kong:The University of Hong Kong,2006:10—94.
[18]汪梦甫,邹同球.带暗支撑预制叠合剪力墙抗震性能试验研究[J].湖南大学学报(自然科学版),2017,44(1):54—64.WANG M F,ZOU T Q. Experimental study on seismic behavior of precast composite shear wall with concealed bracing[J]. Journal of Hunan University(Natural Sciences),2017,44(1):54—64.(In Chinese)
[19]汪梦甫,胡张齐,罗丹.不同高宽比带钢板暗支撑高阻尼混凝土核心筒抗震性能研究[J].地震工程与工程振动,2018,38(3):1—11.WANG M F,HU Z Q,LUO D. Study on seismic performance of high damping concrete core walls with Steel plate concealed bracings of different aspect ratio[J]. Earthquake Engineering and Engineering Vibration,2018,38(3):1—11.(In Chinese)
[20]王义俊,汪梦甫.高阻尼混凝土钢板暗支撑双肢剪力墙数值分析[J].湖南大学学报(自然科学版),2015,42(5):14—20.WANG Y J,WANG M F. Numerical simulation of high damping concrete coupled shear walls with steel plate concealed bracing[J].Journal of Hunan University(Natural Sciences),2015,42(5):14—20.(In Chinese)
[21]吕西林,李俊兰.钢筋混凝土核心筒体抗震性能试验研究[J].地震工程与工程振动,2002,22(3):42—50.L譈X L,LI J L. Seismic behavior of reinforced concrete core walls subjected to cyclic loading[J]. Earthquake Engineering and Engineering Vibration,2002,22(3):42—50.(In Chinese)
[22]贾鹏,杜修力,赵均.不同轴压比钢筋混凝土核心筒抗震性能[J].北京工业大学学报(自然科学版),2009,35(1):63—69.JIA P,DU X L,ZHAO J. Seismic behavior of reinforced concrete core wall under different axial load ratio[J]. Journal of Beijing University of Technology(Natural Sciences),2009,35(1):63—69.(In Chinese)
[2]韦成龙,李斌,曾庆元.变截面连续箱梁桥剪力滞及剪切变形双重效应分析的传递矩阵法[J].工程力学,2008,25(9):111—117.WEI C L,LI B,ZENG Q Y. Transfer matrix method considering both shear lag and shear deformation effects in non-uniform continuous box girder[J]. Engineering Mechanics,2008,25(9):111—117.(In Chinese)
[3] SUN F F,BURSI O S,ASCE A M. Displacement-based and twofield mixed variational formulations for composite beams with shear lag[J]. Journal of Engineering Mechanics,2005,131(2):199—210.
[4]聂建国,王宇航.钢-混凝土组合梁混凝土翼板开洞截面有效翼缘宽度分析[J].建筑结构,2010,40(4):72—75.NIE J G,WANG Y H. Analysis of effective flange width on composite steel-concrete beams with openings in concrete slab[J].Building Structure,2010,40(4):72—75.(In Chinese)
[5]吕西林,李俊兰.钢筋混凝土核心筒体抗震性能试验研究[J].地震工程与工程振动,2002,22(3):42—50.L譈X L,LI J L. Seismic behavior of reinforced concrete core walls subjected to cyclic loading[J]. Earthquake Engineering and Engineering Vibration,2002,22(3):42—50.(In Chinese)
[6]杜修力,贾鹏,赵均.不同连梁跨高比混凝土核心筒抗震性能试验研究[J].建筑结构学报,2009,30(S):5—9.DU X L,JIA P,ZHAO J. Experimental study on seismic behavior of reinforced concrete core walls with various span-depth ratio of coupling beam[J]. Journal of Building Structures,2009,30(S):5—9.(In Chinese)
[7]史庆轩,侯炜,刘飞,等.钢筋混凝土核心筒抗震性能试验研究[J].建筑结构学报,2011,32(10):119—129.SHI Q X,HOU W,LIU F,et al. Experiment on seismic behavior of reinforced concrete core walls under low cycle reversed loading[J].Journal of Building Structures,2011,32(10):119—129.(In Chinese)
[8]汪梦甫,陈兵.带混合暗支撑的钢筋混凝土剪力滞后效应分析[J].力学季刊,2015,36(3):493-501.WANG M F,CHEN B. Analysis of the effect of shear lag of reinforce concrete core walls with mixed concealed bracings[J].Chinese Quarterly of Mechanics,2015,36(3):493—501.(In Chinese)
[9]史庆轩,王斌,郑晓龙,等.T形截面带翼缘剪力墙剪滞效应分析及有效翼缘宽度讨论[J].建筑结构,2014,44(22):67—71.SHI Q X,WANG B,ZHENG X L,et al. Shear lag effect analysis and effective flange width study of the T-shaped shear wall with flange[J]. Building Structure,2014,44(22):67—71.(In Chinese)
[10] JGJ3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011:77—106.JGJ3—2010 Technical specification for concrete structures of tall buiding[S]. Beijing:China Architecture and Building Press,2011:77—106.(In Chinese)
[11]曹万林,黄选明,卢智成,等.钢筋混凝土带暗支撑核心筒体抗震性能试验研究[J].地震工程与工程振动,2005,2(3):81—86.CAO W L,HUANG X M,LU Z C,et al. Experimental study on seismic behavior of reinforced concrete core walls with concealed bracings[J]. Earthquake Engineering and Engineering Vibration,2005,2(3):81—86.(In Chinese)
[12]董宏英,耿海霞,张建伟,等.钢管混凝土叠合柱边框组合核心筒抗震性能试验研究[J].北京工业大学学报(自然科学版),2011,37(11):1720—1728.DONG H Y,GENG H X,ZHANG J W,et al.Experimental study on seismic behavior of composite core walls with Steel tube-reinforced concrete columns[J]. Journal of Beijing University of Technology(Natural Sciences),2011,37(11):1720—1728.(In Chinese)
[13]张建伟,耿海霞,曹万林,等.叠合柱边框内藏钢桁架带洞口组合核心筒抗震性能研究[J].北京工业大学学报(自然科学版),2011,37(11):1668—1676.ZHANG J W,GENG H X,CAO W L,et al. Seismic performance of composite core walls with steel tube-reinforced concrete columns and concealed steel truss[J]. Journal of Beijing University of Technology(Natural Sciences),2011,37(11):1668—1676.(In Chinese)
[14]宋兴禹,汪梦甫.高阻尼混凝土混合暗支撑双肢剪力墙试验研究[J].湖南大学学报(自然科学版),2013,40(4):15—19.SONG X Y,WANG M F. Experimental study on seismic performance of high damping concrete coupled shear wall with enhanced concealed bracings[J]. Journal of Hunan University(Natural Sciences),2013,40(4):15—19.(In Chinese)
[15]汪梦甫,宋兴禹.小高跨比连梁混合暗支撑高阻尼混凝土联肢剪力墙试验研究[J].地震工程与工程振动,2013,33(3):125—132.WANG M F,SONG X Y. Experimental study on seismic performance of high damping concrete coupled shear wall with mixed concealed bracings and coupling beams of small span-depth ratios[J]. Earthquake Engineering and Engineering Vibration,2013,33(3):125—132.(In Chinese)
[16]汪梦甫,王义俊.高阻尼混凝土带钢板暗支撑双肢剪力墙抗震性能试验研究[J].工程力学,2017,34(1):204—212.WANG M F,WANG Y J. Experimental study on seismic performance of high damping concrete coupled shear walls with steel plate concealed bracings[J]. Engineering Mechanics,2017,34(1):204—212.(In Chinese)
[17] LAM W Y. Plate-reinforced composite coupling beams:experimental and numerical studies[D]. Hong Kong:The University of Hong Kong,2006:10—94.
[18]汪梦甫,邹同球.带暗支撑预制叠合剪力墙抗震性能试验研究[J].湖南大学学报(自然科学版),2017,44(1):54—64.WANG M F,ZOU T Q. Experimental study on seismic behavior of precast composite shear wall with concealed bracing[J]. Journal of Hunan University(Natural Sciences),2017,44(1):54—64.(In Chinese)
[19]汪梦甫,胡张齐,罗丹.不同高宽比带钢板暗支撑高阻尼混凝土核心筒抗震性能研究[J].地震工程与工程振动,2018,38(3):1—11.WANG M F,HU Z Q,LUO D. Study on seismic performance of high damping concrete core walls with Steel plate concealed bracings of different aspect ratio[J]. Earthquake Engineering and Engineering Vibration,2018,38(3):1—11.(In Chinese)
[20]王义俊,汪梦甫.高阻尼混凝土钢板暗支撑双肢剪力墙数值分析[J].湖南大学学报(自然科学版),2015,42(5):14—20.WANG Y J,WANG M F. Numerical simulation of high damping concrete coupled shear walls with steel plate concealed bracing[J].Journal of Hunan University(Natural Sciences),2015,42(5):14—20.(In Chinese)
[21]吕西林,李俊兰.钢筋混凝土核心筒体抗震性能试验研究[J].地震工程与工程振动,2002,22(3):42—50.L譈X L,LI J L. Seismic behavior of reinforced concrete core walls subjected to cyclic loading[J]. Earthquake Engineering and Engineering Vibration,2002,22(3):42—50.(In Chinese)
[22]贾鹏,杜修力,赵均.不同轴压比钢筋混凝土核心筒抗震性能[J].北京工业大学学报(自然科学版),2009,35(1):63—69.JIA P,DU X L,ZHAO J. Seismic behavior of reinforced concrete core wall under different axial load ratio[J]. Journal of Beijing University of Technology(Natural Sciences),2009,35(1):63—69.(In Chinese)