大路径钢箱梁在我省高速公路桥梁建设中首次应用。钢箱梁由工厂制造、现场拼装及采用顶推法安装,需要控制的关键技术包括材质、组织、工艺、验算及质控等。本文对影响整体质量的各重要环节或要素的控制及结果,进行简要介绍和探讨,以期为我省钢箱梁桥在高速公路的全面推广应用一定的借鉴经验。 Large-diameter steel box girder bridge construction in our province for the first time the application. The steel box girder is made by the factory. The steel box girder is assembled on site and installed by push-in method. The key technologies that need to be controlled include material, organization, technology, checking and quality control. This article gives a brief introduction and discussion on the control and result of all important factors or elements affecting the overall quality so as to provide some reference for the promotion and application of the steel box girder bridge in the expressway in our province.