摘要
研究目的:本文通过对分项系数设计方法和基于可靠指标设计方法的概念、流程及实例的对比,揭示这两种设计方法的实质——基于可靠指标设计方法是直接把概率的理念引入设计之中,分项系数设计方法是在设计中间接地反映了概率论的思想。通过分析两者的共同之处和明显差异,为工程设计和研究人员根据实际情况合理地选用设计方法提供指导。研究结论:(1)分项系数设计法,相对简单,偏于安全,适合常规设计,是实用的设计方法;(2)可靠指标设计法,能兼顾安全和经济,设计过程复杂,适合特殊设计,是理想化的设计方式和科学研究的方法;(3)支挡结构工程设计可采用分项系数法;(4)研究结论对工程设计和研究人员选用支挡结构设计方法具有指导意义。
Research purposes： By contrast of concept, process, and examples of the partial coefficient design method and the design method based on reliability index, this paper has revealed the essence of the two kinds of design methods, namely for the design method based on reliability index, the concept of probability is directly introduced into design and for the design method of partial coefficient, the probability thought is reflected in the middle of the design, and has analyzed their common and obvious differences, which will provide the guidance for engineering design and research personnel to reasonably choose design method according to the actual situation. Research conclusions： （ 1 ） The partial coefficient design method, relatively simple, safe, suitable for conventional design, is a practical design method. （2） Reliable indicator design method, which can give attention to both safety and economy, the design process is complex, suitable for special design, is the ideal design way and the method of scientific research. （3） For the retaining structure engineering design, the partial coefficient method can be adopted. （4） The research conclusion has guiding significance for engineering design and research personnel to choose the retaining structure design method.
出处
《铁道工程学报》
EI
北大核心
2014年第9期21-25,共5页
Journal of Railway Engineering Society
关键词
支挡结构
分项系数
可靠指标
设计方法
retaining structure
partial coefficient
reliable index
design method
