D型新简支便梁结构分析  

Structure Analysis of D-type Newly Simply Supported Stool Beam

作　　者：张维烈 刘政豪 Weilie Zhang;Zhenghao Liu(Xi'an Qujiang New Area Management Committee Engineering Construction Center,Xi'an,Shaanxi,710061,China;CCCC Investment Company Limited,Beijing,100029,China)

机构地区：[1]西安市曲江新区管委会工程建设中心,中国·陕西西安710061 [2]中交投资有限公司,中国·北京100029

出　　处：《工程技术研究（百科）》2020年第1期11-13,共3页Engineering technology research

摘　　要：新型12m施工便梁适用于新建桥梁下穿既有铁路线施工,单跨使用跨度为10m。根据施工需要纵梁可拼接组成多跨连续梁,同时,采用横抬梁支撑。通过对常规的施工便梁进行优化改进,新D型施工便梁不仅安全而且施工更加便捷,有效提高施工效率。基于有限元理论对新D型简支施工便梁进行系统分析,通过计算该新型简支便梁的承载力及稳定性,研究结果证明D型新简支便梁安全可靠、经济便捷,为今后新建桥梁跨线施工提供了理论支撑和有效指导作用。The new 12m construction beam is suitable for the construction of the new bridge under the existing railway line,with a single span of 10m.According to the construction needs,the longitudinal beam can be spliced to form a multi-span continuous beam,which is supported by transverse beam.Through the optimization and improvement of the conventional construction beam,the new d-type construction beam is not only safe,but also more convenient and effective to improve the construction efficiency.Based on the finite element theory,this paper makes a systematic analysis of the new d-type simply supported beam in construction,and calculates the bearing capacity and stability of the new d-type simply supported beam.The research results prove that the d-type simply supported beam is safe,reliable,economical and convenient,which provides theoretical support and effective guidance for the construction of new Bridges in the future.

关 键 词：简支便梁 承载力 稳定性 纵梁 横抬梁 

分 类 号：U44[建筑科学—桥梁与隧道工程]