涵洞culvert
管涵pipe culvert
拱涵arch culvert
箱涵box culvert
盖板涵slab culvert
无压力式涵洞non-pressure culvert
压力式涵洞pressure culvert
半压力式涵洞partial pressure culvert
倒虹吸涵siphon culvert
上部结构superstructure
主梁main beam
横梁floor beam
纵梁longitudinal beam, stringer
挂梁suspended beam
拱圈arch, ring
拱上结构spandrel structure
腹拱spandrel arch
拱上侧墙spandrel wall