基于螺栓连接的新型钢筋混凝土框架装配式节点抗震性能研究
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摘要
基于拟静力试验,研究基于螺栓连接的新型钢筋混凝土(RC)框架装配式节点的抗震性能,并与装配整体式混凝土结构框架节点进行对比,分析破坏形态、滞回曲线、骨架曲线、位移和延性、刚度与承载力退化及耗能等指标,以及轴压比对新型节点抗震性能的影响。研究表明:新型节点相对于装配整体式节点,承载力降低19%,延性降低16. 7%,承载力与刚度退化加快,但具有更好的耗能能力;新型节点的破坏形式均为梁端受弯破坏;当轴压比小于0. 4时,增大轴压比可提高新型节点的初始刚度与承载力,但会降低延性及耗能能力,并加快刚度和承载力退化。
Through the quasi-static test,seismic behavior of new assembled joints of RC frame based on bolted connection was studied.Compared with the assembled integral RC frame joints,the failure mode,hysteretic curve,skeleton curve,displacement and ductility,stiffness and bearing capacity degradation and energy dissipation were analyzed,as well as the influence of axial compression ratio on the seismic behavior of the new joints. The results showed that the bearing capacity and ductility of the new type joints in the experiment were reduced by 19% and16. 7%,the degradation of bearing capacity and stiffness was accelerated,but the energy dissipation ability was better. The failure mode of the new type joints was bending failure at the end of beam. When the axial compression ratio was less than 0. 4,the initial stiffness and bearing capacity of the new joints could be improved by increasing the axial compression ratio,but the ductility and energy dissipation capacity would be reduced,and the degradation of stiffness and bearing capacity would be accelerated.
Through the quasi-static test,seismic behavior of new assembled joints of RC frame based on bolted connection was studied.Compared with the assembled integral RC frame joints,the failure mode,hysteretic curve,skeleton curve,displacement and ductility,stiffness and bearing capacity degradation and energy dissipation were analyzed,as well as the influence of axial compression ratio on the seismic behavior of the new joints. The results showed that the bearing capacity and ductility of the new type joints in the experiment were reduced by 19% and16. 7%,the degradation of bearing capacity and stiffness was accelerated,but the energy dissipation ability was better. The failure mode of the new type joints was bending failure at the end of beam. When the axial compression ratio was less than 0. 4,the initial stiffness and bearing capacity of the new joints could be improved by increasing the axial compression ratio,but the ductility and energy dissipation capacity would be reduced,and the degradation of stiffness and bearing capacity would be accelerated.
引文
[1]高向玲,徐龙标,李杰,等.装配式混凝土梁柱节点试验及受力性能分析[J].华中科技大学学报(自然科学版),2016,44(10):47-52.
[2]王静峰,王新乐,李贝贝,等.屈曲约束支撑装配式混凝土框架结构抗震性能试验研究[J]土木工程学报,2018,51(12):72-79.
[3] HAWILEH R A,RAHMAN A,TABATABAI H. Nonlinear Finite Element Analysis and Modeling of a Precast Hybrid Beam-Column Connection Subjected to Cyclic Loads[J]. Applied Mathematical Modelling,2010,34(9):2562-2583.
[4] MAYA L F,ZANUY C,ALBAJAR L,et al. Experimental Assessment of Connections for Precast Concrete Frames Using Ultra High Performance Fibre Reinfrced Concrete[J]. Construction and Building Materials,2013,48:173-186.
[5]吴从晓,赖伟山,周云,等.新型预制装配式消能减震混凝土框架节点抗震性能试验研究[J].土木工程学报,2015,48(9):23-30.
[6]张瀑,鲁兆红,淡浩.汶川地震中预制装配整体结构的震害调查分析[J].四川建筑科学研究,2010,36(3):129-133.
[7]吕西林,范力,赵斌.装配式预制混凝土框架结构缩尺模型拟动力试验研究[J].建筑结构学报,2008,29(4):58-65.
[8]苗小燕,程蓓,徐建伟.一种新型装配式混凝土框架结构连接节点试验研究[J].工业建筑,2015,45(12):94-98.
[9]赵地,姜昊天,张文佳,等.新型端板螺栓连接框架节点抗震性能试验研究[J].世界地震工程,2016,32(4):111-117.
[10] ROSATO D V. Plastic Design Handbook[M]. Kluwer Academic Publishers:2001:1-5.
[11]中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB50010—2010[S].北京:中国建筑工业出版社,2011.
[12]中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.
[13]中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228. 1—2010[S].北京:中国标准出版社,2011.
[14]李楠,刘波,张季超,等.预制混凝土结构后浇整体式梁柱节点抗震性能试验研究[C]//全国结构工程学术会议论文集.2008.
[15]赵斌,吕西林,刘丽珍.全装配式预制混凝土结构梁柱组合件抗震性能试验研究[J].地震工程与工程振动,2005,25(1):81-87.
[16]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004.
[17]李贤.端板螺栓连接钢-混凝土组合节点的抗震性能研究[D].长沙:湖南大学,2009.
[18] SALEN R M. Strength and Durability Characteristics of Recycled Aggregate Concrete[D]. Knoxville:University of Tennessee,1996.
[19] TRUONG G T,DINH N H,KIM J C,et al. Seismic Performance of Exterior RC Beam-Column Joints Retrofitted Using Various Retrofit Solutions[J]. International Journal of Concrete Structures&Materials,2017,11(3):415-433.
[2]王静峰,王新乐,李贝贝,等.屈曲约束支撑装配式混凝土框架结构抗震性能试验研究[J]土木工程学报,2018,51(12):72-79.
[3] HAWILEH R A,RAHMAN A,TABATABAI H. Nonlinear Finite Element Analysis and Modeling of a Precast Hybrid Beam-Column Connection Subjected to Cyclic Loads[J]. Applied Mathematical Modelling,2010,34(9):2562-2583.
[4] MAYA L F,ZANUY C,ALBAJAR L,et al. Experimental Assessment of Connections for Precast Concrete Frames Using Ultra High Performance Fibre Reinfrced Concrete[J]. Construction and Building Materials,2013,48:173-186.
[5]吴从晓,赖伟山,周云,等.新型预制装配式消能减震混凝土框架节点抗震性能试验研究[J].土木工程学报,2015,48(9):23-30.
[6]张瀑,鲁兆红,淡浩.汶川地震中预制装配整体结构的震害调查分析[J].四川建筑科学研究,2010,36(3):129-133.
[7]吕西林,范力,赵斌.装配式预制混凝土框架结构缩尺模型拟动力试验研究[J].建筑结构学报,2008,29(4):58-65.
[8]苗小燕,程蓓,徐建伟.一种新型装配式混凝土框架结构连接节点试验研究[J].工业建筑,2015,45(12):94-98.
[9]赵地,姜昊天,张文佳,等.新型端板螺栓连接框架节点抗震性能试验研究[J].世界地震工程,2016,32(4):111-117.
[10] ROSATO D V. Plastic Design Handbook[M]. Kluwer Academic Publishers:2001:1-5.
[11]中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB50010—2010[S].北京:中国建筑工业出版社,2011.
[12]中华人民共和国建设部.普通混凝土力学性能试验方法标准:GB/T 50081—2002[S].北京:中国建筑工业出版社,2003.
[13]中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228. 1—2010[S].北京:中国标准出版社,2011.
[14]李楠,刘波,张季超,等.预制混凝土结构后浇整体式梁柱节点抗震性能试验研究[C]//全国结构工程学术会议论文集.2008.
[15]赵斌,吕西林,刘丽珍.全装配式预制混凝土结构梁柱组合件抗震性能试验研究[J].地震工程与工程振动,2005,25(1):81-87.
[16]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004.
[17]李贤.端板螺栓连接钢-混凝土组合节点的抗震性能研究[D].长沙:湖南大学,2009.
[18] SALEN R M. Strength and Durability Characteristics of Recycled Aggregate Concrete[D]. Knoxville:University of Tennessee,1996.
[19] TRUONG G T,DINH N H,KIM J C,et al. Seismic Performance of Exterior RC Beam-Column Joints Retrofitted Using Various Retrofit Solutions[J]. International Journal of Concrete Structures&Materials,2017,11(3):415-433.
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