Abstract: In order to better carry out the production of segmental beam in the short-line segmental precast yards, it is very necessary for the precast yards to estimate the production capacity before carrying out the prefabrication work. At present, there are few references about the engineering efficiency analysis and calculation of large-scale prefabrication task in China, and there is no detailed research. Therefore, the main factors affecting the segmental prefabrication production of large-scale precast yard are comprehensively considered, and it is very necessary to provide a method of efficiency analysis for large-scale precast yards. Furthermore, in view of the fact that the prefabrication plants are all existing precast yards with a certain production scale, a balanced model is established to simulate the capacity distribution of multiple precast yards, which can provide a reference for the early efficiency analysis of such projects in the future.

Key words: bridge engineering, segment precast, precast yard, efficiency analysis, production analysis, influential factors on performance

摘要： 为更好地开展短线法节段预制梁厂节段梁生产工作，梁厂在展开预制工作前对预制产能进行评估具有一定必要性。目前国内针对大体量预制任务的工程效能分析计算参考文献较少，尚未有详细的研究，因此综合考虑影响大规模预制厂节段预制生产的主要因素，提供一种针对大规模预制厂的效能分析的方法非常有必要。此外，针对预制厂均为既有梁厂且生产规模一定的情况，建立平衡模型对多个梁厂进行模拟产能分配，可对未来此类工程前期效能分析提供参考。

关键词: 桥梁工程, 节段预制, 预制厂, 效能分析, 产能分析, 效能影响因素