八一大桥独柱墩抗倾覆加固方案分析  

Analysis on Antidumping Reinforcement Scheme of Single-pillar Pier for Bayi Bridge

作　　者：温忠辉 WEN Zhonghui

机构地区：[1]南昌市城市规划设计研究总院,江西南昌330038

出　　处：《城市道桥与防洪》2022年第12期126-129,162,I0011,共6页Urban Roads Bridges & Flood Control

摘　　要：以南昌市八一大桥独柱墩抗倾覆加固工程为背景,结合现行规范中的抗倾覆要求,针对现状八一大桥南北立交独柱墩桥梁提出可行的抗倾覆加固设计方案,并对加固方案进行综合比选,考虑多种因素后,选取了增设桩基、外包墩柱以及加盖梁的方案。同时,对曲线桥C线桥第三段进行抗倾覆验算,考虑多种因素并根据计算选取了合适的加固墩位置。最终计算结果表明,桥梁抗倾覆加固后满足要求。Taking Nanchang Bayi Bridge Single-pillar Pier Antidumping Reinforcement Project as an example, combined with the antidumping requirements in the current specification, the feasible antidumping reinforcement design scheme is proposed for the present situation of the single-pillar pier bridge for the south and north interchanges of Bayi Bridge. The reinforcement schemes are comprehensively compared. After considering many factors, the scheme of adding the pile foundation,externally packing the pier pillar and building the bent cap is selected. At the same time, the antidumping checking calculation is carried out for third section of Line C of the curved bridge. Considering many factors and according to the calculation, the suitable reinforcement position of pier is selected. The final calculation result shows that the bridge meets the requirement after the antidumping reinforcement.

关 键 词：独柱墩 加固 抗倾覆 方案分析 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]