| 水平向地震下双层岛式地铁车站结构的动力变形特征 |
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| 引用本文： | 庄海洋,陈国兴,左熹.水平向地震下双层岛式地铁车站结构的动力变形特征[J].地震工程与工程振动,2007,27(6):140-147. |
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| 作者姓名： | 庄海洋 陈国兴 左熹 |
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| 作者单位： | 1. 南京工业大学,岩土工程研究所,江苏,南京,210009;东南大学,土木工程学院,江苏,南京,210004
2. 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： | 国家自然科学基金项目(50578076)，江苏省博士后科研基金项目(D701003C) |
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| 摘 要： | 根据南京地铁车站建设的实际背景,以浅埋于深厚软土场地中某个典型的两层双柱三跨的地铁车站结构为研究对象,对考虑SSI效应时地铁车站结构水平向非线性地震反应规律进行了研究。本文中主要探讨了侧向有软土层存在时地铁车站结构的水平向相对位移反应和加速度反应规律。结果表明:车站结构顶、底板之间的最大相对水平位移接近于自由场地对应点间的最大相对水平位移,而车站结构的侧向水平相对位移曲线明显区别于自由场地对应深度范围内两点间的水平相对位移曲线,采用三次多项式能很好地拟合车站接轨的水平相对位移沿侧墙高度的变化曲线,初步给出了各拟合参数用车站结构顶、底板间最低水平相对位移拟合的经验公式;同时,考虑SSI效应时,传递到车站结构基底处的峰值加速度反应明显大于自由场地对应点处的峰值加速度反应。
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| 关 键 词： | 地铁车站结构 动力变形 地震反应 非线性 |
| 文章编号： | 1000-1301（2007）06-0140-08 |
| 收稿时间： | 2007-06-16 |
| 修稿时间： | 2007-08-10 |
Analysis of dynamic deformation characteristics of two-layer subway station structure under horizontal earthquakes |
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| ZHUANG Haiyang,CHEN Guoxing,ZUO Xi.Analysis of dynamic deformation characteristics of two-layer subway station structure under horizontal earthquakes[J].Earthquake Engineering and Engineering Vibration,2007,27(6):140-147. |
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| Authors: | ZHUANG Haiyang CHEN Guoxing ZUO Xi |
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| Abstract: | According to the construction of subway station in Nanjing City,a representative soft site is selected as the groundwork of subway station structure.By using the ABAQUS finite-element software,the nonlinear dynamic soil-subway station structure interaction(SSI influence) is modeled by the finite-element method.The displacement and acceleration responses of subway station structure are analyzed respectively.Results prove that the horizontal relative displacement between the top and the bottom of subway station is close to the displacement between the corresponding positions in corresponding free site.However,the horizontal relative displacement curve of the subway station structure is different from that of corresponding positions in corresponding free site.At the same time,by considering the SSI influence,the peak acceleration at the bottom of subway station is significantly greater than that of the corresponding positions in the corresponding free site. |
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| Keywords: | subway station structure dynamic deformation earthquake response nonlinear |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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