【摘要】 本文介绍了涿洲物探局办公楼改扩建工程中预应力托梁的设计原则及施工实现方法 ,在托梁中应用预应力技术改善构件整体刚度 ,保证上部结构框架体系的建立。在施工中采用分级张拉的办法 ,逐步施加预应力 ,使结构的应力建立过程在设计及施工的严格控制之下 ,保证梁托框架体系的最终成功实现更多还原

【Abstract】 In this paper,a design method and the prestressing execution of trimmer in the improvement and extension of the Mining Exploring Bureau Building were introduced.The application of prestressing technology improved the stiffness of trimmer and ensured the building of the upper frame system.During the construction,a staging drawing was adopted which made the pre stressing procedure be strictly controlled and ensured the successful implementation of the upper frame system of the trimmer. \[更多还原