连续梁预应力筋理论伸长值计算及张拉要点研究

Research on Theoretical Elongation Calculation and Tensioning Points of Prestressed Reinforcement of Continuous Beam

现阶段,预应力技术在桥梁工程施工过程中得到了广泛的应用,预应力连续桥梁也已经成了现代的重要桥型之一。其中,预应力张拉工艺是影响工程质量的重要因素之一。文章首先对连续梁预应力技术的发展现状及未来发展趋势进行简要分析,进一步说明了连续梁预应力筋理论伸长值计算及连续梁预应力的张拉过程,其次说明了连续梁预应力张拉存在的主要问题及其防护措施,为桥梁工程的顺利进行提供依据。

At present,prestressed technology has been widely used in bridge construction,and prestressed continuous bridge has become one of the important modem bridge.types.Among them,the prestressed tensioning technology is one of the important factors affecting the quality of the project.Therefore,it is of great practical significance to study and analyze the theoretical elongation value calculation and tensioning points of the prestressed reinforcement of continuous beam.In this paper,the development status and future development trend of continuous beam prestressed technology are briefly analyzed,and the theoretical elongation value calculation of continuous beam prestressed reinforcement and the tensioning process of continuous beam prestress are further explained.Finally,the main problems and protective measures of continuous beam prestressed tensioning are explained,so as to ensure the smooth progress of bridge engineering.