城市桥梁抗倾覆设计方法与施工技术分析

Analysis of Anti-overturning Design Method and Construction Technology for Urban Bridges

近年来发生的多起桥梁倾覆事件使得从业人员对梁桥横向倾覆稳定问题非常关注。归纳了桥梁倾覆失效机理和主要影响因素。针对新建桥梁提出了抗倾覆设计方法和措施,提高梁桥在运营寿命期的横向稳定性。针对已有桥梁提出了抗倾覆加固方法,并总结了施工技术,给出了各种加固方法优缺点的客观评价。

In recent years, many bridge overturning incidents occurred make the employed persons pay much attention to the lateral overturning stability of girder bridges. The failure mechanism and main influencing factors on bridge overturning are summarized. Aiming at the new bridges, the anti-overturning design methods and measures are put forward to improve the lateral stability of bridge in service life. For the existing bridges, the anti-overturning reinforcement methods are proposed, the relevant construction technologies are summarized, and the advantages and disadvantages of various strengthening methods are evaluated objectively.