考虑钢管核心混凝土徐变模式与普通混凝土徐变模式的差异,分别采用分离式(截面)模型、换算式(截面)模型和组合式(截面)模型,计算了一座钢管混凝土提篮拱桥的徐变变形.分析表明,分离式模型的计算结果和组合式模型的计算结果十分接近,将其用于施工监控中能保证足够的精度;三门口跨海大桥北门桥横向徐变变形很小,不用考虑拱肋的横向预拱,采用平面杆系程序和分离式截面模型计算就能获得令人满意的结果.图8,参9. Considering the difference between creep mode of steel core concrete and creep mode of ordinary concrete, the creep deformation of a CFST arch bridge was calculated by using separate (section) model, conversion model (section) model and combined section model The analysis shows that the calculated result of the separated model is close to that of the combined model, which can be used in construction monitoring to ensure sufficient accuracy. The lateral creep deformation of North Gate Bridge of Sanmenkou Sea-Crossing Bridge is small, Arch rib horizontal pre-arch, using planar rod system program and separate section model can be obtained satisfactory results.