摘要
某三跨连续中承式钢桁拱桥,跨径布置为22 m+56 m+22 m。主桥拱肋是由中拱肋、边拱肋、副拱肋及腹杆组成的桁架结构。主桥跨中设置系梁,主梁由桥面系及横梁组成,桥面系采用正交异性钢桥面,主梁、系梁及拱肋固结连接。桥梁共设置13对吊杆,扇形布置,吊杆锚固采用耳板的结构形式。主要介绍该桥的结构构造设计及受力计算分析,该桥造型新颖优美,受力及构造较为复杂,可为类似工程提供一定的借鉴。
The span layout of a three-span half-through steel truss arch bridge is 22 m+56 m+22 m. The arch rib of main bridge is the truss structure composed of middle arch rib, side arch rib, auxiliary arch rib and web member. The straining beam is constructed in the span of the main bridge. The main beam is composed of deck system and cross beam. The deck system is the orthotropic steel deck. The main beam,straining beam and arch rib are solidified and connected. 13 pairs of suspender are arranged for the bridge in the fan shape. The suspender anchoring is in the structural type of ear plate. The article mainly introduces the structural construction design and stress calculation analysis of this bridge. The modeling of this bridge is novel and beautiful. The stress and structure are more complicated. The relative experience can be referred for the similar projects.
出处
《城市道桥与防洪》
2017年第9期90-93,共4页
Urban Roads Bridges & Flood Control
关键词
连续中承式钢桁架拱桥
系梁
正交异性钢桥面
吊杆锚固
结构设计
计算分析
continuous half-through steel truss arch bridge
straining beam
orthotropic steel deck
suspender anchoring
structural design
calculation analysis
