九龙大桥V型钢骨混凝土桥墩计算分析

Calculation & Analysis to V-Shaped Reinforced Bar Concrete Pier of Jiulong Bridge

九龙大桥为连续刚构桥,采用V型桥墩。V型桥墩抗推刚度较大,结构整体计算分析时,发现桥墩存在较大弯曲内力。为使结构安全,参照相关规范对桥墩配置一定型钢骨架,使其形成钢骨混凝土结构。对钢骨混凝土桥墩截面抗弯、截面抗剪、裂缝宽度进行计算和分析,并根据计算结果对该桥V型墩设计方案进行评价。

Jiulong Bridge is a continuous rigid frame bridge adopting V - shaped piers. V - shaped pierhas good anti - thrust rigidity, in structural integral calculation ＆ analysis, it is found that the piers haverelatively big bending force. For structural safety, in accordance with relevant regulations, a shaped steelframe is used to form a steel bar concrete structure. This paper then carries out calculation and analysis tosectional anti - bending, sectional anti - shearing, crack width of steel bar concrete pier, and evaluatesthe V - shaped pier design of this bridge according to the calculation result.