| 部分埋入弹性地基的变截面桩自由振动(英文) |
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| 引用本文： | 李炳求,郑镇燮,李光范,陈泰基. 部分埋入弹性地基的变截面桩自由振动(英文)[J]. 岩土工程学报, 1999, 21(5): 609-613 |
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| 作者姓名： | 李炳求 郑镇燮 李光范 陈泰基 |
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| 作者单位： | 李炳求,郑镇燮,陈泰基,Lee Byoung-Koo,Jeong Jin-Seob,Jin Tae-Ki(Wonkwang University);李光范,Li Guangfan(Yanbian Water & Electricity Survey Designing Research Institute) |
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| 摘 要： | 阐述了部分埋入弹性地基的变截面桩的自振频率和振型的数值计算方法，并推导了桩顶作用轴向荷载的变截面桩的控制自由振动的微分方程，最后把此微分方程应用于 Ｒｕｎｇｅ － Ｋｕｔｔａ 法和 Ｒｅｇｕｌａ － Ｆａｌｓｉ 法，采用特征值搜索法算出桩的自振频率和振型。
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| 关 键 词： | 特征值搜索法 弹性地基 自由振动 振型 部分埋入桩 Regula-Falsi法 Runge-Kutta法 变截面桩 |
Free vibrations of tapered piles embedded partially in elastic foundations |
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| Lee Byoung-Koo,Jeong Jin-Seob,Li Guangfan,Jin Tae-Ki. Free vibrations of tapered piles embedded partially in elastic foundations[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(5): 609-613 |
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| Authors: | Lee Byoung-Koo Jeong Jin-Seob Li Guangfan Jin Tae-Ki |
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| Affiliation: | Dept. of Civil Engineering Wonkwang University Iksan Junbuk 570 749, Yanbian Water Electricity Survey Designing Research Institute Yanji City Jilin Province 133001 |
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| Abstract: | The numerical methods for calculating the natural frequencies and the mode shapes of the tapered piles embedded partially in the elastic foundations are developed. The ordinary differential equation governing the free vibrations of such piles are derived, in which the effect of axial load is considered. The Runge-Kutta method and the determinant search method combined with the Regula-Falsi method are used for integrating the differential equation and determining the eigenvalues(natural frequencies), respectively. |
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| Keywords: | determinant search method elastic foundation free vibration mode shape pile embedded partially Regula- Falsi method Runge-Kutta method tapered pile Lee Byoung Koo Male born in 1948 professor of Department of Civil and Environmental |
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