大翼缘箱梁
widely-flanged box girder
波形钢腹板箱梁
Composite Box Girder with Corrugated Steel Webs
box girder with corrugated steel web
Box Girder with Corrugated Steel Webs
薄壁曲线箱形梁
thin walled curved box girders
钢筋混凝土箱形梁
reinforced concrete box girders
reinforced concrete box beam
简支箱形梁
simply supported box girder