摘要
利用驮桥车进行国内城市桥梁改造是一种新的施工方法,它能够在不使用大型起重机,而且不影响城市道路交通的情况下实现对立交桥梁整体的拆除和重新施工。针对桥梁顶升的施工工况,建立并行驮桥车液压顶升系统可靠性框图和数学模型,通过系统的可靠度曲线进行可靠性预测分析,搭建系统故障树模型对该故障树进行定性与定量分析,找出系统的脆弱环节,为提高系统可靠性提供理论措施,对工程实践具有指导意义。
Using bridge-transporting vehicle for domestic city bridge transformation is a new construction method. It can remove the whole overpass beam without the large cranes and reconstruct the overpass without the impact of ur- ban road traffic situation. For bridge jacking construction conditions, establish reliability block diagram and mathe- matical model of the hydraulic jacking system of the parallel bridge-transporting vehicle. Predict the reliability of the system through the analysis of the reliability curve. A system fault tree model is established and the qualitative and quantitative analysis of the fault tree is carried out to find out the weak links of the system and provide theoretical measures for improving the system reliability, which has significance of an introduction for engineering practice.
出处
《液压与气动》
北大核心
2016年第4期8-13,共6页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(51175448)
重型机械协同创新计划课题(ZX01-20140400-02)
关键词
并行驮桥车
顶升系统
可靠性
故障树分析
parallel bridge-transporting vehicle, lifting system, reliability, fault tree analysis
