单跨大跨度现浇刚构人行桥舒适度分析

Analysis on Comfort Level of Single-span Long-span Cast-in-situ Rigid-frame Pedestrian Bridge

刚构桥是桥梁设计中较为成熟、应用比较广泛的桥型,但一般情况下,大跨度刚构桥以车行桥为主,很少对人行工况下的舒适度进行验算。目前在城市建设中的大跨度人行桥大多采用钢结构或组合结构桥梁,但是在一些特殊的情况下,现浇结构有其不可替代的优势。以单跨50 m刚构桥为例,介绍了单跨大跨度现浇刚构人行桥的舒适度验算方法,为类似工程提供经验参考。

The rigid-frame bridge is a mature and widely used bridge type in bridge design.But generally,the long-span rigid-frame bridge is mainly vehicular bridge,and the comfort level under the pedestrian conditions is rarely checked.At present,the steel structure or composite structure bridges are mostly used for the long-span pedestrian bridges in urban construction.But in some special cases,the cast-in-situ structure has its irreplaceable advantages.Taking a single-span 50 m rigid-frame bridge as an example,the checking calculation method of the comfort level for single-span long-span cast-in-situ rigid-frame pedestrian bridge is introduced,which provides the experience and reference for similar projects.