拱上立柱 meaning in Chinese

spandrel column

It is a top load bridge with a clear span of 288m , which is maximum one of the same structural system in asia . the main arch rib uses 8 steel tube of 920mm joined by web members and transverse truss to form a space truss . the soldier piles on the arch are made of bent frame to make the shape both artistic and novel
梅溪河大桥为一净跨达288米的上承式钢管混凝土拱桥，是目前亚洲同类桥型中跨度最大的桥梁，其主拱肋采用8根920mm的钢管，通过腹杆及平联形成钢管混凝土空间桁架，拱上立柱亦采用钢管混凝土排架，造型新颖美观。