现浇箱梁桥满堂支架结构分析与优化研究——以雄安新区郊野公园市政工程横一路1#桥为例

Structural Analysis and Optimization of Full House Support in Cast-in-situ Box Girder Bridge——Taking the No. 1 Bridge of Hengyi Road in Municipal Project of the Country Park in Xiong’an New District as an Example

满堂支架为现浇梁桥施工过程比较常用的支撑体系,文章依托雄安新区郊野公园市政桥梁工程,采用midas Civil建立变截面现浇箱梁及满堂支架结构有限元模型,对现浇梁桥的满堂支架结构进行分析,通过对满堂支架的支撑横梁、立杆的强度、变形的超限情况进行分析,从结构安全和经济性的角度提出对支撑横梁及立柱支撑间距的优化建议。

Full house support is a commonly used support system in the construction process of cast-in-situ girder bridges. Based on the municipal project of the country park in Xiong’an New District, this paper uses midas Civil to establish the finite element model of cast-in-situ box girder with variable-section and full house support structure,and analyzes the full house support structure of cast-insitu girder bridges. Through the analysis of the strength of the support beams and vertical columns and the over-limit situation of deformation of the full house support, the optimization suggestions for the support spacing of the support beams and columns are put forward from the perspective of structural safety and economy.