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随着我国钢铁供给侧改革,钢结构技术日渐成熟,钢结构桥梁逐渐推广,钢箱梁的施工比重将逐步提高。本文针对大龙潭互通E匝道第3联的钢箱梁安装,进行了方案设计,并对小半径、大横坡钢箱梁跨高速段安装的重难点进行了深入分析和探讨。可为我国其他钢结构桥梁安装施工提供有益参考。
With the reform of China’s steel supply side, the technology of steel structure is gradually maturing, the steel structure bridges are gradually popularized, and the proportion of steel box girder construction will be gradually increased. In this paper, the design of the steel box girder for the third joint of the Longtan Interchange E-ramp was carried out, and the design of the steel box girder was carried out. The difficulties and difficulties in the installation of the small radius and large cross-section steel box girder across the high speed section were analyzed and discussed in depth. It can provide useful reference for the installation and construction of other steel bridges in our country.