贵州惠兴线北盘江特大桥为贵州省惠水至兴仁高速公路上跨越北盘江的一座高墩大跨连续刚构桥,本文主要介绍该桥总体设计、结构设计和计算分析等。本连续刚构桥特点是高墩大跨、长联、桥面窄,解决好高墩横向稳定性与桥面窄、纵桥向抗推刚度之间的矛盾,主梁上缘升温工况下最大应力与降温工况下抗裂验算最小应力之间的矛盾是本桥设计的关键和难点。 Guizhou Huixing Beipanjiang Bridge is a high-pier long-span continuous rigid frame bridge spanning Beipanjiang River from Huishui to Xingren Expressway in Guizhou Province. This paper mainly introduces the overall design, structural design and calculation analysis of the bridge. The continuous rigid frame bridge is characterized by high pier long span, long joint, narrow bridge deck, to solve the high pier transverse stability and bridge deck narrow, vertical bridge between the anti-push stiffness, the maximum stress And cooling conditions under the contradiction between the calculated minimum stress cracks is the design of the bridge the key and difficult.