主要拉应力检查旨在确认分段混凝土梁桥梁腹板用于纵向剪切与扭曲的充分性。
The principal tensile stress check is introduced in order to verify the adequacy of webs of segmental concrete girder Bridges for longitudinal shear and torsion.
通过对不同张拉方案计算结果的分析，提出减小纵向应力，保障安全应用的建议。
Through the analysis on computation results of different tensioning schemes, the suggestions of reducing longitudinal stress for application safety are put forward.
此外，由于梁纵向有非预应力钢筋和预应力钢筋，且拉、压区用钢量不同，所以钢筋约束不同，对梁的挠度影响较大。
Moreover, due to the non prestressed steel and prestressed steel, and the different amount of using steel in pulling and pressing areas, so the restrain of steel is different.
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