跨营业线门式墩梁模架施工技术

Construction Technology of Framework for Portal Pier Beam across Business Line

摘要: 门式墩梁逐渐成为上跨营业线铁路桥梁的首选下部结构形式，特定的空间环境下对墩柱及盖梁施工提出了更高的要求。本文基于实际工程案例，对门式墩柱的模板体系及混凝土现浇盖梁的贝雷架体系进行了介绍，并对其构造进行了验算。结果表明，该模板支架体系完全符合规范要求，并为同类工程的建设过程提供了参考。

Abstract: Portal pier beam gradually becomes the preferred substructure form for railroad bridges spanning over business lines, and the specific space environment poses higher requirements for pier and cap beam construction. In this paper, based on practical engineering cases, the formwork system of portal pier column and the bailey frame system of cast-in-place concrete cap beam are introduced and their structures are tested. The results show that the formwork support system fully meets the code requirements, and provides a reference for the construction process of similar projects.