【摘要】 结合武汉绕城高速公路的桥梁施工工程 ,选取 30 m预应力混凝土 T梁作为研究对象 ,通过开展对梁内应变的观测和梁上拱度的长期测量观测的试验研究 ,探讨了混凝土收缩、徐变和温度等因素对预应力混凝土梁上拱度的影响以及预应力混凝土梁上拱度随时间的变化规律 ,为预应力混凝土梁桥的设计和施工提供了参考依据 .更多还原

【Abstract】 Based on the bridge construction project of Wuhan Outer Circumferential Highway, the 30 m T-style prestressed concrete beams were selected as the model of study. The influence on the deflection upwards of concrete shrinkage, creep and temperature in prestressed concrete bridges were researched by experimental observation. The study provided some useful information for the design and construction of prestressed concrete beams.更多还原