| 桩自由长度对高桩承台桥墩地震反应的影响 |
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| 引用本文： | 朱晞,孙剑平.桩自由长度对高桩承台桥墩地震反应的影响[J].北京交通大学学报(自然科学版),1999(1):1-5. |
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| 作者姓名： | 朱晞 孙剑平 |
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| 作者单位： | 北方交通大学土木建筑工程学院 |
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| 基金项目： | 铁道部建设司资助项目;; |
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| 摘 要： | 用集中质量法,考虑土—桩—桥墩相互作用,以佐藤假定为依据的低桩承台单桩轴向抗压公式扩展到高桩承台基础;编制了程序,将某桥墩桩的自由长度由实际的０．４８ｍ逐步增加至２０．４８ｍ,分别计算了结构自振特性和地震反应;以研究高桩承台基础桥墩地面上桩的自由长度对地震反应的影响．
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| 关 键 词： | 高桩承台 土-桩相互作用 地震反应 |
Seismic Response Influence of Pier with Elevated Pile Foundation Due to the Unconstrained Length |
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| Zhu Xi,Sun Jianping.Seismic Response Influence of Pier with Elevated Pile Foundation Due to the Unconstrained Length[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,1999(1):1-5. |
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| Authors: | Zhu Xi Sun Jianping |
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| Abstract: | The lumped mass method was selected to study the seismic response influence of pier with elevated pile foundation due to unconstrained length, by considering the soil pile pier interaction. The formula for the axial stiffness of a single pile based on the Sato assumption was extended from low capped pile foundation to elevated pile foundation. The dynamic characteristics and seismic response of a pier was computed by the special program. In order to study the seismic response influence due to the unconstrained length,the length was increased from 0.48m to 20.48m graduately. Their dynamic characteristics and seismic response were computed respectively. |
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| Keywords: | elevated pile foundation soil pile interation seimic response |
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