铁道标准设计2016，Vol.60Issue(5)：103-107,108,6.DOI:10.13238/j.issn.1004-2954.2016.05.022
钢纤维对盾构管片受力主筋用量的影响研究
Study on Influence of Steel Fiber on Reinforcement Quantity of SFRC Shield Segments
摘要
Abstract
Based on SFRC shield segment limit design of a tunnel in the shield zone, the study is focused on the influence of steel fiber parameters on reinforcement quantity. The results show that when the length-diameter ratio is identical, the amount of reinforcement tends to reduce linearly with the increase of the steel fiber. When the steel fiber content is identical, the amount of reinforcement tends to reduce linearly with the increase of length-diameter ratio. The relational expression of the steel fiber content and reinforcement reduction is drawn out by linear regression and the correlation coefficients are 1. 000 0 and 0. 999 4 respectively. Based on the relational expression of the steel fiber content and reinforcement reduction, the expression of the steel fiber parameters and reinforcement reduction is given by inserting the coefficient taking account of the steel fiber model. The expression could be used to predict the reinforcement reduction, but it also has limitations and requires further study and modification.关键词
铁路隧道/盾构管片/极限状态设计法/钢纤维混凝土/钢纤维掺量/长径比Key words
Railway tunnel/Shield segment/Limit state design method/Steel fiber reinforced concrete/Steel fiber content/Length-diameter ratio分类
交通工程引用本文复制引用
唐伟,冯天炜..钢纤维对盾构管片受力主筋用量的影响研究[J].铁道标准设计,2016,60(5):103-107,108,6.基金项目
中国铁路总公司科技研究开发计划课题(2014G004-N) （2014G004-N）
