Construction technology and quality control of long span steel structure pipe truss
大跨度钢结构管桁架施工技术及质量控制

摘要

在大跨度钢结构施工过程中，受力复杂，且工期长，因此必须对其进行合理的控制。本文主要从以下几个方面入手。首先分析了我国目前桥梁工程建设现状以及发展趋势，然后阐述了管桁架基础、吊装技术和质量检验方法等内容，最后通过理论计算与实际数据相结合的方式来探讨钢结构施工时常见问题并提出相应措施建议，以供参考借鉴，以此实现对大跨度钢结构拱桥杆件施工中控制要点的有效制定。

Abstract

In the construction process of long-span steel structure, the force is complex, and the construction period is long, so it must be reasonable control. This paper mainly starts from the following aspects. Firstly, the present status and development trend of bridge engineering in our country are analyzed. Then, the paper expounds the tubular truss foundation, hoisting technique and quality inspection methods. Finally, the common problems in steel structure construction are discussed by combining theoretical calculations with practical data and corresponding suggestions are presented for reference. In this way, the control points in the construction of steel arch bridge with long span structure can be effectively formulated.