摘要
通过理论分析得出墩台基底倾覆稳定系数新定义。新定义的倾覆稳定系数不仅与荷载有关 ,而且与地基极限承载力有确定的关系。通过算例分析 ,得出该方法所确定的倾覆稳定系数较常规值小 ,常规的倾覆稳定系数定义偏于不安全。新定义的倾覆稳定系数可用于工程设计。
In this paper , a new definition of safety factor on toppling stability for foundation base of pier and abutment is suggested by theoretical analysis. This new safety factor not only has a certain relation to the load ,but also has a certain relation to the ultimate bearing capacity of foundation. The new safety factor is smaller than the conventional safety factor through calculation analysis of samples, and it is obtained that the conventional definition of safety factor on toppling stability for foundation base of pier and abutment is not safe. The new definition of safety factor on toppling stability for foundation base of pier and abutment can be used to practical engineering design.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2001年第1期72-75,共4页
Journal of the China Railway Society
基金
铁道部规改项目!(铁建技 97- 1 3)
关键词
墩台基底
倾覆稳定系数
算例分析
建筑工程
foundation base of pier and abutment
safety factor on toppling stability
calculation analysis of samples
