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盐城市一座钢筋混凝土简支梁桥因挠度过大进行了体外预应力加固 ,但收效甚微。文中对原设计与加固设计进行设计计算复核 ,指出其加固设计中的一些不当之处以及加固失败的主要原因 ,并在此基础上提出建议的加固方案。
A reinforced concrete simply-supported beam bridge in Yancheng was reinforced by external prestress due to excessive deflection, but with little effect. In this paper, the design and verification of the original design and reinforcement design are reviewed. Some defects in the reinforcement design and the main reasons for the reinforcement failure are pointed out. Based on this, the proposed reinforcement scheme is proposed.