浅谈公路装配式桥梁桥面横坡

On the Highway Fabricated Bridge Deck Cross Slope

公路桥梁尤其是山区公路桥梁,受到平面线型指标限制,桥面横坡常不是标准横坡,既有标准横坡也有等超高段单向坡,甚至需要在一跨两端出现反向横坡。装配式桥梁以其受力简单、施工周期短和施工便捷等优点在公路桥梁中得到广泛应用。在设计阶段合理选择适当的梁顶横坡对桥梁受力和经济有着不可忽视的影响。但是实际桥梁设计中,由于设计人员水平参差不齐,往往会造成桥梁处于不利的受力状态和造成经济上浪费。本文针对公路装配式桥梁常见的四种桥面横坡调整,从施工便捷和经济安全的角度总结四种桥面横坡形成机制。

Roads and bridges,especially in mountain area,by the restrictions of plane linear indicator that deck cross slope frequently than the standard cross slope,there are both standard and other ultra-high-way section of the slope,or even need to appear in a reverse cross ends cross slope. Prefabricated Bridge with its force is simple,short construction period and convenient construction,etc. are widely used in highway bridges. It have a significant impact to bridges forces and economic that reasonable choice of the appropriate beam cross-slope roof in design phase. But,actually,cause low ability of design staff often make bridge in a disadvantageous stress state and economically wasteful. This article from view of the construction convenient and economic security summarized four kinds of bridge cross slope formation mechanism.