大跨径预应力在连续刚构桥施工中的技术讨论

Technical Discussion on Long-Span Prestress in Construction of Continuous Rigid Frame Bridge

近年来,中国实力迅速增强,各行各业发展也取得了显著进展。桥梁行业亦不例外,在不断发展下各种技术顺势而生,但其中仍存在较多的问题,影响着路桥施工质量。现阶段,大跨度预应力技术凭借自身优点,被广泛应用于桥梁施工中,在该技术的应用下,可简化施工、保证桥梁结构可靠性,还会实现结构受力均匀,符合连续钢构桥的实际建设需求,也取得了较好的应用效果。虽然多跨连续刚构桥是一种结构合理的新型桥式,它能使材料充分发挥各自的特长,但多跨连续刚构桥的施工却是一项比较困难的任务,施工阶段仿真分析显得尤为重要。

In recent years,China's strength has increased rapidly,and remarkable progress has been made in the development of all walks of life.Bridge industry is no exception,with the continuous development of various technologies,but there are still many problems affecting the quality of road and bridge construction.At present,the long-span prestress technology is widely used in bridge construction with its own advantages.Under the application of this technology,it can simplify the construction,ensure the reliability of the bridge structure,and realize the uniform stress of the structure,which meets the actual construction requirements of continuous steel frame bridge,and has achieved good application effect.Although the multi span continuous rigid frame bridge is a new type of bridge with reasonable structure,it can make the materials give full play to their respective advantages,but the construction of multi span continuous rigid frame bridge is a relatively difficult task,and the simulation analysis in the construction stage is particularly important.