佛山市禅西大道塱沙大桥主桥中跨合拢段轴向受力分析

悬臂浇筑预应力混凝土连续梁桥由于其跨越能力强、施工便捷、造价经济等特点而被广泛的应用。合拢段施工是悬臂浇筑预应力混凝土连续梁桥施工和体系转换的重要环节,而中跨合拢段的施工更是合拢段施工的重点和难点。通过塱沙大桥主桥中跨合拢段的轴向受力的计算来对悬臂浇筑混凝土梁的中跨合拢段轴向受力特点进行详细的介绍,有关经验可供相关专业人员参考。

Analysis on Axial Stress of Closure Section of Middle Span for Main Bridge of Langsha Bridge in Chanxi Avenue of Foshan City

The cantilever poured prestressed concrete continuous beam bridge is widely used because of its strong spanning capacity,convenient construction and economic construction cost.The construction of closure section is the key link in the construction of the cantilever poured prestressed concrete continuous beam bridge and its system conversion,and the construction of the middle-span closure section is more important and difficult in the construction of closure section.The article introduces the axial stress of the middle-span closure section of cantilever poured concrete beam by the calculation of the axial stress of the middle-span closure section of the main bridge for Langsha Bridge in detail.The relative experience can be referred by the relevant professional members.