超宽PC箱梁现浇施工支架方案设计研究

The scaffold scheme design of the bracket construction of super wide PC box girder

PC箱梁施工支架是桥梁施工中关键性工程,直接关系到桥梁施工的安全,所以施工方案的合理设计显得十分重要。以渝昆高速跨线桥加宽施工为研究对象,分析PC箱梁现浇施工支架方案的合理性,并对施工支架和方木的强度、稳定性、地基承载力进行全面核算,使施工支架的强度、稳定性和承载力符合施工标准要求。

PC box girder construction support is a key project in bridge construction,which directly relates to the safety of project construction,so the reasonable design and accuracy calculation of construction direct plan is very important for engineering. This paper takes the actual situation of Chongqing Kunming Expressway Overpass Bridge Widening Construction site as object,analyzes the PC cast-in-place box beam bracket construction scheme such as the construction frame,transverse distribution of strength,stability,and bearing capacity,ensures the construction support strength,stability and bearing capacity to accordance with the construction specifications request.