大悬臂预应力混凝土盖梁的设计与计算

Design and Calculation of Large Cantilever Prestressed Concrete Cap Beam for Urban Bridges

以成都彭青淮快速青白江段(凤鸣大道二期)城区段高架桥梁为分析对象,悬臂预应力混凝土盖梁的宽度为27.5m,将此盖梁的设计分析思路与计算方法进行简单阐述,不仅验证了该桥建设的合理性,更确保了施工的安全性,可为类似城市桥梁大悬臂盖梁的计算提供相关经验。

Taking the viaduct in the urban area of Qingbaijiang section(Fengming Avenue phase II) of pengqinghuai Expressway in Chengdu as the analysis object, the width of cantilever prestressed concrete bent cap is27.5m,The design idea and calculation method of this cap beam are briefly described, which not only verifies the rationality of the bridge construction, but also ensures the safety of construction, and can provide relevant experience for the calculation of large cantilever cap beams of similar urban bridges.