Abstract:Research purposes: To ensure the safety, reliability and economic rationality of single-column elevated station structure seismic design, the performance-based seismic design method is systematically studied. Firstly, the Midas-civil model of the structure is established to study its dynamic characteristics, and the seismic checking calculation of the main stressed components under low-level, medium and high-level earthquakes is carried out. Then, the ABAQUS finite element model of key beam-column joint is established, and the stress state of the joint region under normal service stage and high-level earthquake is studied. Research conclusions: (1) According to the structural characteristics, the seismic performance targets under the building structure code and railway code are set respectively. (2) The results of response spectrum and time-procedure analysis under low-level earthquake show that the maximum interlayer displacement angle meets the performance target requirements; under the medium earthquake condition, the checking results of pier column and cap beam meet the performance target requirements. (3) The results of elastic-plastic time-procedure analysis under high-level earthquake show that the section of pier column members is cracked, but the internal reinforcement does not yield and the hysteresis curve is linear. (4) The finite element analysis of beam-column joint shows that the concrete on the upper surface of the joint is cracked slightly, and the internal reinforcement does not yield under the high-level earthquake condition, which meets the requirements of non-yield under high-level earthquake. (5) The research results can provide reference for the seismic design of elevated station structure.
高修建, 刘强. 独柱高架车站抗震性能化设计及节点研究[J]. 铁道工程学报, 2022, 39(2): 96-102.
GAO Xiujian, LIU Qiang. Research on the Performance-based Seismic Design and Joint of Single Column Elevated Station. Journal of Railway Engineering Society, 2022, 39(2): 96-102.
赵杰林.独柱式长悬臂高架车站地震安全性探讨[J].建筑结构,2012(4):79-83.Zhao Jielin. Discussion on the Seismic Safety of Single-column and Long Cantilever Elevated Station[J].Building Structure,2012(4): 79-83.
[2]
赵亮.独柱式大悬臂高架车站的动力特性及地震反应分析[J].现代城市轨道交通,2005(2):26-29.Zhao Liang. Analysis on Dynamic Characteristics and Seismic Reaction of Single-Column and Large Cantilever Elevated Station[J].Modern Urban Transit,2005(2):26-29.
[3]
高杰.青岛轨道交通独柱高架车站抗震设计关键技术研究[J].铁道标准设计,2021(7):154-159.Gao Jie. Research on Key Technology of Seismic Design for Single Column Elevated Station in Qingdao Rail Transit[J].Railway Standard Design, 2021(7):154-159.
[4]
任磊,王华,朱韶彬.郑州市城郊铁路工程独柱高架车站抗震分析[J].都市快轨交通,2014(4):74-78.Ren Lei, Wang Hua, Zhu Shaobin. Seismic Analysis of Single-column Elevated Station in Zhengzhou Suburban Railway Engineering[J].Urban Rapid Rail Transit, 2014(4):74-78.
[5]
刘波.独柱式大悬臂高架车站抗震性能分析及改进措施建议[D].重庆:重庆大学,2016.Liu Bo. Seismic Analysis and Suggestions of Single Pillar and Long Cantilever Elevated Station[D]. Chongqing:Chongqing University, 2016.
[6]
任重翠,徐自国,肖从真,等.独柱高架车站考虑桩土相互作用的抗震性能分析[J].建筑结构学报,2014(5):25-32.Ren Chongcui,Xu Ziguo,Xiao Congzhen, etc. Seismic Performance Analysis of Single-column Elevated Station Considering Pile-soil Interaction[J].Journal of Building Structures,2014(5): 25-32.
[7]
GB 50011—2010(2016年版),建筑抗震设计规范[S].GB 50011—2010(2016), Code for Seismic Design of Buildings[S].
[8]
GB 50909—2014,城市轨道交通结构抗震设计规范[S].GB 50909—2014,Code for Seismic Design of Urban Rail Transit Structures[S].
[9]
GB 50010—2010,混凝土结构设计规范[S].GB 50010—2010,Code for Seismic Design of Concrete Structures[S].