摘要
临时支架的搭设在桥梁维修时,是一项十分重要并且具有难度的技术,特别在桥梁更换构件中,起着决定性的作用。由于普通满堂式支架或抱箍等,在一些工程中受地形、构件强度等限制,采用钢管格构柱临时支架成为最经济、合理的选择。为了计算分析钢管柱格构式临时支架在支撑桥梁上部结构,更换盖梁中的安全应用,依托工程实例,进行精细荷载导算,重点对临时支撑的整体稳定性、单根杆件稳定性及承载力、地基基础承载力等指标进行验算和分析,以满足实际工程需要,也为其他类似工程提供了重要的理论依据和实际经验。
Temporary support always been very important and difficult for bridge maintenance,especially in bridge components replace. Due to the limitation of terrain and component strength in some projects,the temporary support of steel tubular lattice columns is the most economical and reasonable choice. due to the limitations of the conventional full hall support or hoop hoop. In order to calculate the lattice type steel column of the temporary support in support of the upper structure of the bridge,replacing the safety application of coping in this paper,based on the engineering examples,detailed load calculation,focus on the overall stability,the temporary support of single member stability and bearing capacity of foundation bearing capacity index calculation and analysis,in order to meet the actual the project needs,also provides an important theoretical basis and practical experience for other similar projects.
作者
苏加强
SHU Jiaqiang(Yunnan Highway Science and Technology Research Institute,Kunming,Yunnan650051,China)
出处
《公路工程》
北大核心
2018年第3期229-235,共7页
Highway Engineering
