铁路桥梁预制装配桥面设施研究与应用

Research and Application of Prefabricated Deck Facilities for Railway Bridges

为推动铁路桥梁装配化建造,提高铁路基础设施建造质量,以高速铁路桥梁桥面设施为切入点,全面总结装配技术体系的研发过程及研究成果。通过方案比选,确定装配桥面设施合理的连接方式和结构形式,并通过分析计算,确定满足设计荷载和功能需求的结构尺寸和构造细节;对设计方案进行试验验证,开展工艺试验和静力荷载试验,验证了施工方法的可行性和结构设计的安全性与耐久性。在总结科研成果的基础上,提出铁路桥梁预制装配桥面设施通用参考图和技术标准。铁路桥梁预制装配桥面设施技术已在多条新建铁路开展工程应用,效果良好。该技术的进一步推广发展,可为更高水平的铁路智能建造提供基本条件。

For the purpose of promoting the prefabricated construction of railway bridges and improve the construction quality of railway infrastructure,this thesis,taking the deck facilities for high speed railway bridges as the starting point,summarizes the R&D process and achievements of prefabrication technology system.The reasonable connection mode and structural form of prefabricated deck facilities are determined through scheme comparison,and structural dimensions and architectural details conforming to the design load and functional requirements are confirmed through analysis and calculation;the design scheme is tested and verified by experiment,and process test and static load test are carried out to verify the feasibility of construction method,as well as the safety and durability of structural design.On the basis of summarizing scientific research achievements,this paper puts forward the general reference drawings and technical standards for prefabricated deck facilities of railway bridges.The technology of prefabricated deck facilities for railway bridges has been applied in many newly-built railways with good results.The further popularization and development of this technology can provide basic conditions for higher-level intelligent construction of railways.