针对现浇连续箱梁花瓶式桥墩墩身受力的特点,采用撑杆系杆的简化受力基本假定,引入提供主动压力的体内预应力钢筋替代普通钢筋系杆的思路,有效改善结构受力,避免普通钢筋结构握裹不良、被动受力的诸多不足,在安徽芜湖弋江路快速化改造工程中得到应用。 In view of the characteristics of the vault piers of cast-in-place continuous box girder piers, the basic assumptions of simplified stress of the brace bar are introduced, and the idea of ​​replacing the normal steel bars with the in-body prestressing tendons that provide active pressure is introduced to effectively improve the structural force , To avoid the poor grip of ordinary steel structure, many of the negative passive stress, in Anhui Wujiang Yijiang rapid transformation project has been applied.