摘要
预应力混凝土箱梁结构在桥梁建设中应用非常广泛,但因其横截面积大,在进行桥梁施工时要特别注意预应力的张拉顺序,尽量减少预应力损失。通过对四种张拉方案的比较,得到了最优的预应力张拉顺序,可供同类桥梁施工参考。
Prestressed concrete box girder structure is widely used in bridge construction,but special attention should be paid to the tension sequence of prestress because of its large cross- sectional area,so as to minimize the prestress loss. Based on the comparison of the four schemes,this paper obtains the optimal prestress tension sequence,offering reference for similar bridge construction.
出处
《建材技术与应用》
2017年第1期30-31,34,共3页
Research and Application of Building Materials
关键词
混凝土箱梁
预应力
张拉顺序
concrete box girder
prestress
tension sequence
