厦金大桥厦门段项目海上首榀钢箱梁吊装成功

Core Viewpoint - The successful installation of the first offshore prefabricated steel box girder for the Xiamen section of the Xiamen-Jinmen Bridge marks a significant milestone in the project's construction, transitioning into the core structural phase of the bridge [1][3]. Group 1: Project Overview - The Xiamen section of the Xiamen-Jinmen Bridge spans approximately 19.6 kilometers and includes 92 large prefabricated steel box girders, which serve as the "steel backbone" of the bridge [2]. - The installed steel box girder measures 142.5 meters in length, 44 meters in width, and 4.5 meters in height, with a total weight of 4,586 tons [2]. Group 2: Construction and Technology - The construction unit, Xiamen Road and Bridge Engineering Investment Development Co., Ltd., has established a comprehensive support system for the manufacturing and installation process, following a complete technical route from factory prefabrication to on-site installation [2]. - The project team adheres to a green development philosophy, utilizing a modular factory-based assembly process that enhances offshore operational efficiency by approximately four times while minimizing impacts on marine ecology [4]. Group 3: Strategic Importance - Upon completion, the Xiamen-Jinmen Bridge will integrate with Xiamen Xiang'an International Airport and the Xiamen-Jinmen shipping route, creating a new multi-dimensional transportation network for cross-strait connectivity, which is significant for exploring new paths for cross-strait integrated development [4].