摘要
在进行桥梁抗震分析中 ,为了得到较为符合实际情况的桩基础的地震反应分析结果 ,必须考虑土和结构的相互作用。集中质量模型是群桩基础抗震计算中广泛采用的简化计算模型。本文以此模型为基础 ,讨论了复杂程度不同的集中质量模型的精度 ,主要讨论土层特性、群桩数目、群桩间距。
In seismic analysis for bridges, soil pile bridge interaction must be considered in order to obtain reasonable estimation of pile′s response. The lumped mas models are popular in seismic anslysis for pile group. In this paper, lumped mass models with various complexities are compared. The factors which will affect the accuracy of the model, such as different kind of soils, the number of piles, the length of piles, and the distance between piles are discussed.
出处
《结构工程师》
2002年第1期43-48,共6页
Structural Engineers
基金
教育部科学技术重点项目 (990 4 2 )
国家自然科学基金项目 (40 0 72 0 88)
