宁波市机场路高架桥梁分幅施工的分析

宁波市机场路高架施工时,原有地面交通不能中断,部分路段的主线高架桥梁需要分幅施工。分幅施工的主线高架桥梁,因两幅桥落架时间不同,中间墩柱及基础在施工过程中需承受较大的偏心弯矩。该文针对该工况仔细分析了中间墩柱、桩基的受力及变形情况,并提出一些施工过程的有效措施,为工程的顺利实施提供有价值的建议。

Analysis on Construction of Viaduct of Ningbo Airport by Roadways

The existing ground traffic can not be broken during the viaduct construction of Ningbo Airport.The viaduct of the main line in some road sections is required to construct by roadways.The viaduct of the main line constructed by roadways is required to bear the greater eccentric bending moment in the construction process of the middle pier post and foundation because of the different time for two-roadway bridges to take up place.Aiming at this working condition,the article analyzes the stresses and deformations of the middle pier post and pile foundation in detail,and puts forward some efficient construction measures to provide the valuable suggestions for the smooth implementation of the project.