V形斜腿刚架拱桥受力分析及施工要点

以广州市萝岗中心区的V形斜腿刚架拱桥为工程实例,介绍了对该桥进行的受力分析,并重点介绍了桩基础弹簧刚度的计算方法及施工要点。特别施工时在两斜腿之间设置一道临时钢管是有效可行的措施,对同类桥梁的设计及施工有一定的指导意义。

Force Analysis and Construction Key Points of An Arch Bridge of V-shaped Leg Rigid-frame

With the engineering example of a V-shaped leg rigid frame arch bridge in the downtown of Luogang in Guangzhou, the force analysis of the bridge is introduced, focusing on calculation of the pile foundation spring rate and the key points for construction. It is especially applicable and effective to place a steel pipe temporarily between the two legs during construction, as a guide for design and construction of the same type of bridge.