悬浇连续梁墩梁临时固结技术的验算与应用

广西靖西至那坡高速公路百大特大桥采取临时固结的方式进行预埋粗钢筋锚固施工,文章结合该工程实例,通过建立简支双悬臂结构在四种荷载工况下的计算模型,分析了悬臂浇注连续箱梁施工临时固结的最不利荷载工况,以及在此工况下临时支座的受力情况,并对临时支座及临时锚筋进行了相应的结构计算。

Checking and Application of Pier Beam Temporary Consolidation Technology in Continuous Beam Cantilever Casting

Temporary consolidation method is used for the embedded coarse rebar anchor-age construction of Baida Megabridge in Guangxi Jingxi-Napo Expressway,and in combina-tion with this actual engineering case,and through establishing the calculation model of simply supported double-cantilever structure under four loading construction conditions,the article analyzed the most unfavorable load conditions of temporary consolidation in the con-tinuous box girder cantilever casting construction as well as the force situation of temporary support under this construction condition,and conducted the corresponding structural calcu-lation on the temporary support and temporary anchorage rebar.