清远北江大桥扩建工程刚架拱施工工艺

刚架拱桥是在桁架拱、斜腿刚架等基础上发展起来的另一种新桥型,属于有推力的高次超静定结构,具有构件少、自重小、整体性好、刚度大、施工简便、经济指标较先进、造型美观等特点。文章结合清远北江大桥扩建工程,详细介绍了刚架拱的施工工艺流程。

Construction Technics of Rigid-framed Arch Bridge for Extension Project of Beijiang Bridge in Qingyuan

Rigid-framed arch bridge is a new development based on truss arch structure and inclined leg rigid frame and so on.It is a statically indeterminate structure with thrusting force,featured with fewer component,small self weight, favourable wholeness,high rigidity,expedient construction,more advanced economic index and beautiful model and so on. Combined with extension project of Beijiang Bridge in Qingyuan,construction technics of rigid-framed arch bridge are briefly introduced.