不满足局部稳定性钢管临时墩加固探讨

摘要

钢结构现已广泛应用于工程建筑，由于设计、施工及材料采购不当，材料质量不符合规范要求，使得后期使用过程中不满足局部稳定性要求。本文以某钢桁梁桥拼装横移过程中钢管临时墩为研究对象，考虑基础影响、成本及工期因素对三种加固方案进行比较，得出不同因素影响下钢管临时墩加固方案，对今后工程有很好的借鉴作用。%Steel structure has been widely used in engineering construction. Because the design, construction and material procurement are inappropriate, material quality does not meet the requirements, the steel structure can’t meet the requirements of local stability in the latter part of the process. This paper takes the temporary pier of steel tube in assembling and transferring of a steel truss girder bridge as the research object to consider the foundation effect, cost and time factors to compare the three kinds of reinforcement schemes. The reinforcement scheme of temporary pier in different factors is found, which has good reference for future engineering.