可更换消能连梁抗震性能试验
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摘要
为了解决高层混合结构地震损伤严重的问题,对其破坏集中的位置进行消能减震设计并进行试验研究.高层混合结构在我国应用广泛,实际地震震害以及振动台试验结果表明,该类结构损伤集中在核心筒连梁.而传统的钢骨混凝土连梁在剪切变形下往往过早破坏而提前退出工作,使得地震能量进一步传递给其他结构构件最终破坏.为此,设计了跨高比为1. 8和2. 5的可更换消能连梁.考虑了楼板对承载力的影响,对于消能连梁试件,楼板上浮30 mm.通过拟静力试验研究其关键力学性能,并检验公式的合理性.结果表明,消能连梁提前进入屈服,保护了墙体免受损伤;连梁根部锚固位置的弹性变形易导致连梁初始刚度下降,建议优化该部分构造,提高整体刚度;楼板上浮以后,对连梁承载力基本没有贡献;试验结果比设计公式计算结果偏小.
To solve the problem that the high-rise hybrid structures are seriously damaged during large earthquakes,energy dissipation design was applied to the focus of damage with experimental research.High-rise hybrid structures are widely used in China,and observations of the earthquake damage and the shaking table test results reveal that the damage of structures focus on the coupling beam. However,in most cases the traditional steel-reinforced concrete coupling beam tends to fail prematurely under shear deformation,and the seismic energy further is transferred to other structural elements. For this reason,a replaceable energy-dissipating coupling beam with a span height ratio of 1. 8 and 2. 5 was designed.Considering the influence on bearing capacity,the floor slabs of energy dissipating coupling beams were moved up 30 mm. The mechanical properties of the beams were studied by the quasi-static test,and the rationality of the design formulas were verified. Results show that the replaceable energy-dissipating coupling beams can yield early to prevent walls from damage. The elastic deformation of the anchorageposition decreases the initial stiffness of the coupling beam. Optimizing the anchorage position is suggested to improve the overall stiffness. The floor slabs of energy-dissipating coupling beams,which are moved up 30 mm,make no contribution to the bearing capacity of the coupling beams. The value of tests is less than that simulated by design formula.
To solve the problem that the high-rise hybrid structures are seriously damaged during large earthquakes,energy dissipation design was applied to the focus of damage with experimental research.High-rise hybrid structures are widely used in China,and observations of the earthquake damage and the shaking table test results reveal that the damage of structures focus on the coupling beam. However,in most cases the traditional steel-reinforced concrete coupling beam tends to fail prematurely under shear deformation,and the seismic energy further is transferred to other structural elements. For this reason,a replaceable energy-dissipating coupling beam with a span height ratio of 1. 8 and 2. 5 was designed.Considering the influence on bearing capacity,the floor slabs of energy dissipating coupling beams were moved up 30 mm. The mechanical properties of the beams were studied by the quasi-static test,and the rationality of the design formulas were verified. Results show that the replaceable energy-dissipating coupling beams can yield early to prevent walls from damage. The elastic deformation of the anchorageposition decreases the initial stiffness of the coupling beam. Optimizing the anchorage position is suggested to improve the overall stiffness. The floor slabs of energy-dissipating coupling beams,which are moved up 30 mm,make no contribution to the bearing capacity of the coupling beams. The value of tests is less than that simulated by design formula.
引文
[1]杜文学.外型钢砼框架-内置型钢框架钢筋砼核心筒混合结构抗震性能试验研究与分析[D].哈尔滨:中国地震局工程力学研究所,2015.DU W X. Experimental research and analysis on seismical performance of hybrid structure with steel frame strengthened both reinforced core tube and outer reinforced concrete frame[D]. Harbin:Institute of Engineering Mechanics,CEA,2015.(in Chinese)
[2]杜文学,张令心. SRC框架-型钢混凝土核心筒混合结构振动台试验研究[J].建筑结构学报,2016,37(7):127-135.DU W X,ZHANG L X. Shaking table test on hybrid structure with SRC frame and steel frame strengthened concrete core tube[J]. Journal of Building Structures,2016,37(7):127-135.(in Chinese)
[3]张令心,朱柏洁,王涛.形状优化的菱形开孔剪切型金属阻尼器减震性能研究[J].沈阳建筑大学学报,2018,34(4):655-665.ZHANG L X,ZHU B J,WANG T. Study on mechanical behavior of assembled steel shear panel dampers with optimized diamond hole[J]. Journal of Shenyang Jianzhu University,2018,34(4):655-665.(in Chinese)
[4] FORTNEY P J,SHAHROOZ B M,RASSATI G A. Largescale testing of a replaceable “fuse”steel coupling beam[J]. Engineering,2007,133(12):1801-1807.
[5]滕军,马伯涛,周正根,等.提高联肢墙抗震性能的连梁耗能构件关键技术[J].工程抗震与加固改造,2007,29(5):1-6.TENG J,MA B T,ZHOU Z G,et al. Key technique of energy dissipating damper on coupling beam to improve eismic-resistance performance of coupling shear wall structures[J]. Earthquake Resistant Engineering and Retrofitting,2007,29(5):1-6.(in Chinese)
[6]滕军,马伯涛,容柏生.基于弯曲错动的耗能阻尼片机理分析与试验研究[J].建筑结构学报,2008,29(6):113-120.TENG J,MA B T,RONG B S. Mechanics analysis and experimental study on energy dissipation damper based on bending and dislocating[J]. Journal of Building Structures,2008,29(6):113-120.(in Chinese)
[7]滕军,马伯涛,李卫华.联肢剪力墙连梁阻尼器伪静力试验研究[J].建筑结构学报,2010,31(12):12-21.TENG J,MA B T,LI W H. Pseudo-static test for coupling beam damper of coupled shear wall structure[J]. Journal of Building Structures, 2010, 31(12):12-21.(in Chinese)
[8]滕军,马伯涛,李卫华,等.联肢剪力墙连梁阻尼器地震模拟试验研究[J].建筑结构学报,2010,31(12):13-20.TENG J,MA B T,LI W H,et al. Seismic simulation test for coupling beam damper of coupled shear wall structure[J]. Journal of Building Structures,2010,31(12):13-20.(in Chinese)
[9]吕西林,陈云,蒋欢军.可更换连梁保险丝抗震性能试验研究[J].同济大学学报(自然科学版),2013,41(9):1318-1325.LX L,CHEN Y,JIANG H J. Experimental study on seismic behavior of fuse of replaceable coupling beam[J].Journal of Tongji University(Natural Science),2013,41(9):1318-1325.(in Chinese)
[10]纪晓东,马琦峰,王彦栋,等.钢连梁可更换消能梁段抗震性能试验研究.建筑结构学报,2014,35(6):1-11.JI X D,MA Q F,WANG Y D,et al. Cyclic test of replaceable shear links in steel coupling beams[J].Journal of Building Structures,2014,35(6):1-11.(in Chinese)
[11]陈云,吕西林.带可更换消能连梁的新型剪力墙仿真分析与试验验证[J].湖南大学学报(自然科学版),2014,41(9):48-53.CHEN Y,LX L. Detailed simulation analysis of shear wall structures with replaceable coupling beams and experimental verification[J]. Journal of Hunan University(Natural Sciences), 2014, 41(9):48-53.(in Chinese)
[12]施唯,王涛,孔子昂,等.消能连梁子结构试验研究[J].地震工程与工程振动,2014,34(增刊1):743-749.SHI W,WANG T,KONG Z A,et al. Substructure test of energy-dissipative coupling beams[J]. Earthquake Engineering and Engineering Dynamics,2014,34(Suppl1):743-749.(in Chinese)
[13]邓付元,王涛,施唯.带阻尼器消能连梁抗震性能试验研究[J].土木工程学报,2016,49(增刊1):96-100.DENG F Y,WANG T,SHI W. Cyclic test on seismic behavior of energy-dissipative coupling beams with dampers[J]. China Civil Engineering Journal,2016,49(Suppl 1):96-100.(in Chinese)
[14]刘晓刚,樊健生,聂建国,等.剪切型消能连梁的塑性强化特性研究[J].土木工程学报,2017,50(3):1-11.LIU X G,FAN J S,NIE J G,et al. Research on plastic overstrength of energy-dissipation shear links[J]. China Civil Engineering Journal,2017,50(3):1-11.(in Chinese)
[15]朱柏洁,张令心,王啸霆,等.形状优化的装配式剪切型金属阻尼器力学性能研究[J].建筑结构学报,2018,39(5):106-115.ZHU B J, ZHANG L X, WANG X T, et al.Experimental study on mechanical behavior of assembled steel shear panel dampers with optimized shapes[J].Journal of Building Structures,2018,39(5):106-115.(in Chinese)
[16] ZHU B J,WANG T,ZHANG L X. Quasi-static test of assembled steel shear panel dampers with optimized shapes[J]. Engineering Structures,2018,172:346-357.
[2]杜文学,张令心. SRC框架-型钢混凝土核心筒混合结构振动台试验研究[J].建筑结构学报,2016,37(7):127-135.DU W X,ZHANG L X. Shaking table test on hybrid structure with SRC frame and steel frame strengthened concrete core tube[J]. Journal of Building Structures,2016,37(7):127-135.(in Chinese)
[3]张令心,朱柏洁,王涛.形状优化的菱形开孔剪切型金属阻尼器减震性能研究[J].沈阳建筑大学学报,2018,34(4):655-665.ZHANG L X,ZHU B J,WANG T. Study on mechanical behavior of assembled steel shear panel dampers with optimized diamond hole[J]. Journal of Shenyang Jianzhu University,2018,34(4):655-665.(in Chinese)
[4] FORTNEY P J,SHAHROOZ B M,RASSATI G A. Largescale testing of a replaceable “fuse”steel coupling beam[J]. Engineering,2007,133(12):1801-1807.
[5]滕军,马伯涛,周正根,等.提高联肢墙抗震性能的连梁耗能构件关键技术[J].工程抗震与加固改造,2007,29(5):1-6.TENG J,MA B T,ZHOU Z G,et al. Key technique of energy dissipating damper on coupling beam to improve eismic-resistance performance of coupling shear wall structures[J]. Earthquake Resistant Engineering and Retrofitting,2007,29(5):1-6.(in Chinese)
[6]滕军,马伯涛,容柏生.基于弯曲错动的耗能阻尼片机理分析与试验研究[J].建筑结构学报,2008,29(6):113-120.TENG J,MA B T,RONG B S. Mechanics analysis and experimental study on energy dissipation damper based on bending and dislocating[J]. Journal of Building Structures,2008,29(6):113-120.(in Chinese)
[7]滕军,马伯涛,李卫华.联肢剪力墙连梁阻尼器伪静力试验研究[J].建筑结构学报,2010,31(12):12-21.TENG J,MA B T,LI W H. Pseudo-static test for coupling beam damper of coupled shear wall structure[J]. Journal of Building Structures, 2010, 31(12):12-21.(in Chinese)
[8]滕军,马伯涛,李卫华,等.联肢剪力墙连梁阻尼器地震模拟试验研究[J].建筑结构学报,2010,31(12):13-20.TENG J,MA B T,LI W H,et al. Seismic simulation test for coupling beam damper of coupled shear wall structure[J]. Journal of Building Structures,2010,31(12):13-20.(in Chinese)
[9]吕西林,陈云,蒋欢军.可更换连梁保险丝抗震性能试验研究[J].同济大学学报(自然科学版),2013,41(9):1318-1325.LX L,CHEN Y,JIANG H J. Experimental study on seismic behavior of fuse of replaceable coupling beam[J].Journal of Tongji University(Natural Science),2013,41(9):1318-1325.(in Chinese)
[10]纪晓东,马琦峰,王彦栋,等.钢连梁可更换消能梁段抗震性能试验研究.建筑结构学报,2014,35(6):1-11.JI X D,MA Q F,WANG Y D,et al. Cyclic test of replaceable shear links in steel coupling beams[J].Journal of Building Structures,2014,35(6):1-11.(in Chinese)
[11]陈云,吕西林.带可更换消能连梁的新型剪力墙仿真分析与试验验证[J].湖南大学学报(自然科学版),2014,41(9):48-53.CHEN Y,LX L. Detailed simulation analysis of shear wall structures with replaceable coupling beams and experimental verification[J]. Journal of Hunan University(Natural Sciences), 2014, 41(9):48-53.(in Chinese)
[12]施唯,王涛,孔子昂,等.消能连梁子结构试验研究[J].地震工程与工程振动,2014,34(增刊1):743-749.SHI W,WANG T,KONG Z A,et al. Substructure test of energy-dissipative coupling beams[J]. Earthquake Engineering and Engineering Dynamics,2014,34(Suppl1):743-749.(in Chinese)
[13]邓付元,王涛,施唯.带阻尼器消能连梁抗震性能试验研究[J].土木工程学报,2016,49(增刊1):96-100.DENG F Y,WANG T,SHI W. Cyclic test on seismic behavior of energy-dissipative coupling beams with dampers[J]. China Civil Engineering Journal,2016,49(Suppl 1):96-100.(in Chinese)
[14]刘晓刚,樊健生,聂建国,等.剪切型消能连梁的塑性强化特性研究[J].土木工程学报,2017,50(3):1-11.LIU X G,FAN J S,NIE J G,et al. Research on plastic overstrength of energy-dissipation shear links[J]. China Civil Engineering Journal,2017,50(3):1-11.(in Chinese)
[15]朱柏洁,张令心,王啸霆,等.形状优化的装配式剪切型金属阻尼器力学性能研究[J].建筑结构学报,2018,39(5):106-115.ZHU B J, ZHANG L X, WANG X T, et al.Experimental study on mechanical behavior of assembled steel shear panel dampers with optimized shapes[J].Journal of Building Structures,2018,39(5):106-115.(in Chinese)
[16] ZHU B J,WANG T,ZHANG L X. Quasi-static test of assembled steel shear panel dampers with optimized shapes[J]. Engineering Structures,2018,172:346-357.
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