带承台单桩耦合体系纵向振动的重正化解法研究
发布时间：2019-04-02 14:21
【摘要】：从非线性振动力学的角度出发,基于重正化方法研究非均匀地层中带承台单桩耦合体系的纵向自由振动问题。采用弹簧耦合单元块体的形式对单桩及桩侧土体进行离散,并用广义Voigt串联体描述黏弹性土层的摩阻效应,建立多段多自由度非线性承台 单桩 土纵向振动模型。通过重正化坐标转换原则给出振动模型的纵向振动频率解,并引入质量参振分配系数对不同情况下的振动频率方程进行表征,进而通过算例验证重正化解法的正确性和准确性。最后考察桩身质量、材料刚度、承台质量及桩侧摩阻力对耦合体系自由振动频率的影响规律,研究成果可为带承台桩基础动力设计提供参考。
[Abstract]:Based on the non-linear vibration mechanics, the problem of longitudinal free vibration of a single pile coupling system with a bearing platform in a non-uniform formation is studied based on the method of re-alignment. 閲囩敤寮圭哀鑰﹀悎鍗曞厓鍧椾綋鐨勫舰寮忓鍗曟々鍙婃々渚у湡浣撹繘琛岀鏁，
本文编号：2452629
[Abstract]:Based on the non-linear vibration mechanics, the problem of longitudinal free vibration of a single pile coupling system with a bearing platform in a non-uniform formation is studied based on the method of re-alignment. 閲囩敤寮圭哀鑰﹀悎鍗曞厓鍧椾綋鐨勫舰寮忓鍗曟々鍙婃々渚у湡浣撹繘琛岀鏁，
本文编号：2452629
本文链接：https://www.wllwen.com/jingjilunwen/jianzhujingjilunwen/2452629.html
