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在借鉴已有桥梁钢—混结合段设计的基础上,针对瓯江大桥钢—预应力混凝土组合连续刚构梁式桥,采用PBL剪力板及加预应力束的设计方法,通过参考国内外规范,局部分析及对预应力锚固体的比较,提出基于传递弯矩和剪力的梁式钢—混结合段,采用PBL剪力板与预应力束组合的设计理念,并介绍PBL剪力板的作用原理及强度计算方法。
Based on the design of the steel-concrete mixing section of the existing bridge, aiming at the design of the continuous rigid-frame beam bridge with steel-prestressed concrete in Oujiang Bridge, the design method of PBL shear plate and prestressed beam is adopted. By referring to the domestic and foreign specifications, Based on the local analysis and the comparison of prestressed anchors, the design concept of the combination of prestressed beam and PBL shear plate is proposed based on the beam steel-concrete mixing section which transmits bending moment and shear force. The principle of PBL shear plate is introduced. Intensity calculation method.