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桥面铺装混凝土,其作用是找平,防水和传递轮载,由于厚度较薄,收缩变形与主梁的徐变、收缩龄期不同,使其与梁顶面接触面的剪力较大,在与主梁一起受力变形时易受破坏,桥面混凝土铺装施工就是其中重要的控制环节,对其技术要求和精细程度越来越重视,桥面铺装层采用整幅浇筑是最佳的施工方案。桥面铺装在负弯矩张拉、体系转换后进行,通常桥面铺装先于防撞墙施工。
The effect of the bridge deck paving concrete is to level, waterproof and transmit the wheel load. Because of the thin thickness, the shrinkage deformation and the creep and shrinkage age of the main girder are different, the shearing force at the contact surface with the top of the girder is larger, In the deformation and deformation together with the main girder vulnerable to damage, pavement construction of concrete pavement is one of the important aspects of control, more and more attention to its technical requirements and sophistication, the entire surface of the bridge deck pouring is the best Construction program. Deck pavement in the negative moment tension, the system after the conversion, usually pavement before the first anti-collision wall construction.