松浦大桥上层桥面系施工控制技术应用研究  

Study on Application of Construction Control Technology of Upper Deck System for Songpu Bridge

作　　者：孔凡 KONG Fan

机构地区：[1]上海贝英吉工程咨询有限公司,上海市200433

出　　处：《城市道桥与防洪》2020年第6期143-146,M0016,共5页Urban Roads Bridges & Flood Control

摘　　要：针对松浦大桥上部桥面系钢-混凝土正交异性组合桥面板节段预制及施工过程中混凝土桥面板横桥向受拉情况较为严重的情况,分析了包括少支点支撑下浇筑预制、厂内预弯以及反顶架等优化措施的理论效果及可行性,并得到了较为完善的宽幅组合桥面板抗裂控制方案及优化施工方案,并针对该方案进行了有限元受力分析研究及变形控制研究,进一步验证了该桥面板抗裂控制及优化方法的可行性及可推广性,为国内外同类桥梁的设计及施工提供理论参考依据与借鉴。Aiming at the more serious tension situation of concrete deck slab across the bridge in the prefabrication and construction of steel-concrete orthotropic composite deck slab segments of the upper deck system for Songpu Bridge,the theoretical effect and feasibility of the optimization measures including the pouring prefabrication under few-fulcrum support,pre-springing in manufactory and reverse upper frame are analyzed.The more perfected anti-cracking control scheme and optimization construction scheme of wide composite deck slab are obtained.The feasibility and generalizability of the anti-cracking control and optimization method for the deck slabs are further verified.The theoretical basis and reference are provided for the design and construction of the similar bridges at home and abroad.

关 键 词：松浦大桥 正交异性组合桥面板 抗裂控制 有限元受力分析 变形控制 

分 类 号：U443.32[建筑科学—桥梁与隧道工程]