简支梁桥以其桥跨外形一致、截面相同、构造布置统一的优点在高速铁路中得到了广泛的应用。

Owing to consistent bridge span forms, similar sections and unified structures, simply supported girder bridges have been widely applied in the high speed railway.

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在考虑地下室基础承台刚域及抗拔桩布置的情况下，对基础梁的弯矩计算进行分析推导，得出了跨中弯矩的折减系数计算公式。

Moments on basement foundation beams considering rigid zone of pile caps and pulling resistance of piles are analyzed. Reduction factor of midspan moment is gained.

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