新通扬运河特大桥悬浇箱梁临时支承受力分析

Forcing analysis of the temporary support of the cantilever casting box beam on the Xintongyang canal super large Bridge

以江都—海安高速公路新通扬运河特大桥主桥变截面预应力混凝土连续箱梁为例,介绍了采用挂篮悬浇施工工艺布置的临时支座的力学验算方法和依据,并对最不利荷载组合工况进行了受力分析,得出该临时支柱符合施工承载力要求的结论。

Taking the variable section prestressed concrete continuous box beam of the main bridge of Xintongyang canal super large Bridge on Jiangdu to Haian expressway as example, the author introduces the mechanical checking method and basis of the temporary supports of adopting basket casting box beam construction technology, and gets forcing analysis on the most adverse loading composition construction situation, gets conclusion that the temporary supports confirms construction loading requirements.