摘要
为了准确模拟桩基础对桥梁结构的空间约束,在总结常用桩基模拟方法的基础上,提出一种新的等效结构来模拟群桩基础的空间刚度,然后采用基于WinKler假定的"m法",根据"柔度相等"的原则,推导出这种等效结构的相关参数,最后通过与常用模拟方式比较验证的方式,验证这种等效结构的准确性。研究表明:该种虚拟结构构造简单、建模方便,能够模拟桩基础的空间刚度,满足工程设计要求。
In order to simulate the space constraints on the pile foundation of bridge structure, a new equivalent structure is presented to simulate the space stiffness of pile group foundations based on the summary of commonly used foundation simulation methods. Then,with Winkler-based “ m-method” and according to the principle of ＂ equal flexibility＂, related parameters of the equivalent structure are derived. Finally, the accuracy of this equivalent structure is verified in comparison with the commonsimulation methods. The research results show that the virtual structure, being simple in structure andconvenient in modeling, can simulate the space stiffness of pile foundation and meet the requirements of engineering design
出处
《铁道标准设计》
北大核心
2017年第2期55-59,共5页
Railway Standard Design
关键词
桥梁
桩基础
模拟方法
柔度相等
等效结构
Bridge
Pile foundation
Simulation method
Equal flexibility
Equivalent structural
