?拱撑桁架

... 双铰拱桁架 two hinged arch truss 拱撑桁架 arch braced truss 拱式桁架 arch truss ...

?拱支桁架

... arch steel truss 弓形钢桁架 arch braced truss 拱撑桁架 ; 拱支桁架 combined arch vierendeel truss 组合拱式空腹桁架 ...