【作者】 马建军； 刘丰军； 高笑娟； 贾振华；

【Author】 MA Jian-jun;LIU Feng-jun;GAO Xiao-juan;JIA Zhen-hua;College of Civil Engineering, Henan University of Science and Technology;

【机构】 河南科技大学土木工程学院；

【摘要】 为研究桩-土系统中各参数对桩基动力学特性的影响,基于建立的考虑二次弯矩效应桩基动力学模型,对其主共振响应进行了计算分析。进而,利用Pareto图研究了桩基主要物理参数对系统动力响应有效非线性系数的影响,判定出具有显著影响效应的关键参数。最后,通过关键/非关键参数对桩基主共振幅频响应曲线影响的对比,验证了动力学参数效应分析的正确性和重要意义。更多还原

【Abstract】 For analyzing the effects of main parameters on the dynamics nature of the pile foundation, based on the dynamics model of the pile foundation with the effect of second-order moment, the primary resonance of the pile foundation is investigated. Applying the Pareto chart, the effects of main physical parameters on the effective nonlinear coefficient is examined; moreover, the key parameter with significant effect on the dynmainc response is selected. Finally, it is verified that the correctness and important significance of the kinetic parameters analysis, through the numerical results of the comparative study on the influence of the key/non-critical parameters on the frequency-response curves of the primary resonance.更多还原