| 考虑土-结构相互作用时地铁高架车站结构横向地震反应分析 |
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| 引用本文： | 陈礼飞,朱明轩,张敏敏.考虑土-结构相互作用时地铁高架车站结构横向地震反应分析[J].西北地震学报,2019,41(5):1332-1338. |
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| 作者姓名： | 陈礼飞 朱明轩 张敏敏 |
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| 作者单位： | 扬州工业职业技术学院 建筑工程学院, 江苏 扬州 225127;南京工业大学岩土工程研究所, 江苏 南京 210009,南京工业大学岩土工程研究所, 江苏 南京 210009,南京工业大学岩土工程研究所, 江苏 南京 210009 |
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| 基金项目： | 国家自然科学基金面上项目（51778282） |
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| 摘 要： | 基于ABAQUS软件平台，建立了土-桩-高架车站结构非线性动力相互作用的整体有限元分析模型，考虑输入地震动的频谱特性，系统分析了地铁某上部高架车站结构的横向地震反应规律，给出了不同地震条件下车站结构地震横向变形、结构加速度反应和柱底动内力反应程度及其规律。结果表明：由于高架车站结构顶层质量集中较为严重，使得上层结构的动力反应明显大于下层结构，尤其是上层柱底的最大剪力和弯矩都大于下层柱底的对应值。同时，具有明显近场地震动脉冲特征的地震波更易增强结构的地震反应。分析结果能为类似轨道交通高架车站结构的地震反应分析和抗震设计提供有效的参考和指导。
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| 关 键 词： | 轨道交通 高架车站结构 地震反应 土-结构相互作用 有限元分析 |
| 收稿时间： | 2018/5/3 0:00:00 |
Transverse Seismic Responses of an Elevated Metro Station Considering Soil-Structure Interaction |
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| CHEN Lifei,ZHU Mingxuan and ZHANG Minmin.Transverse Seismic Responses of an Elevated Metro Station Considering Soil-Structure Interaction[J].Northwestern Seismological Journal,2019,41(5):1332-1338. |
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| Authors: | CHEN Lifei ZHU Mingxuan and ZHANG Minmin |
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| Institution: | Institute of Architectural Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, Jiangsu, China;Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China,Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China and Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China |
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| Abstract: | In this work, an overall finite element model, considering the nonlinear dynamic interaction of soil-pile-evaluated station structure systems, was established with the software ABAQUS. The transverse seismic performance of an elevated metro station was systematically analyzed, considering the spectral characteristics of input ground motions. Horizontal deformation and the acceleration response of the structure, and the dynamic internal force response at the column bottom were obtained and analyzed. The results showed that the dynamic response of the superstructure of the elevated station was stronger than that of the understructure, especially the maximum shear force and bending moment at the column bottom. Meanwhile, earthquake waves with obvious near-field pulse-like characteristics should more easily enhance the seismic response of the elevated structure. |
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| Keywords: | rail transit elevated station structure seismic response soil-structure interaction finite element analysis |
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