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

摘要:

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,本文以单跨50m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。

Abstract:

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.