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弯扭耦合使曲线箱梁受力变得较为复杂， 荷载作用下端部支座的支反力极不平衡， 甚至产生支座脱空现象。研究表明， 支座径向位移对调整曲线箱形梁桥端部支座内、外侧支反力的分配作用明显， 并且可使最大扭矩和最小扭矩的绝对值趋于相等。
Bending and torsion coupling make the force of curved box girder become more complicated, the supporting force of end support under load is very unbalanced, and even the phenomenon of bearing vacancy occurs. The results show that the radial displacement of support plays a significant role in distributing the internal and external lateral counterforce of end supports of curved curved box girder, and the absolute values of maximum torque and minimum torque can be equalized.