Exploration on Erection Construction Technique of 70 m Box Girder at Hangzhou Bay Over Sea Bridge
LIU Shao-zhi1, WANG Chao-ping2
1.Binzhou Yellow River High Road and Railway Bridge Investment Limited Company, Binzhou, Shandong 256600, China; 2.The First Company of China Zhongtie Major Bridge Engineering Group Co. Ltd, Zhengzhou, Henan 450053, China
Abstract：Research purposes: To solve erection construction of 70m (excess weight)box girder of Hangzhou Bay Over Sea Bridge in China under the condition of great ebb and tide and rapid flow in Hangzhou bay.
Research methods: In view of the practical situation of Hangzhou Bay Over Sea Bridge, this paper researches movement and erection of 70 m box girder combining with research results Hangzhou Bay Over Sea Bridge at home and abroad and current regulation in China and foreign advanced construction technique.
Research results: Lateral movement of box girder can be realized by the traverse machine and slide beam. Longitudinal movement can be realized by hydraumatic pendant wheel-track machine which is 2 400 ton weights with full hydraulic pressure and electric control. Integrated equipment (2 500 ton and 3 000 ton) for beam-move-erection at sea are adopted for erection of box girder.
Research Conclusions: To adopt corrosion resistant plate and MGB plate can solve great consumption of transverse of box girder and to adopt hydraulic pressure and electric control technique can solve equalized stress and safety problem occurred in the course of lifting and movement of box girder. To adopt special developed integrated equipment (2 500 ton and 3 000 ton) for beam-move-erection at sea can solve stabilization and safety during transportation and erection of box girder in current on the sea. These mentioned above develop a brand-new construction method for development of construction technique for bridgework in China.
刘少志，王朝平. 杭州湾跨海大桥70m箱梁架设施工技术的探讨[J]. 铁道工程学报, 2006, 23(8): 58-61.
LIU Shao-zhi, WANG Chao-ping. Exploration on Erection Construction Technique of 70 m Box Girder at Hangzhou Bay Over Sea Bridge. 铁道工程学报, 2006, 23(8): 58-61.
2006, Vol. 23 
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