老山自行车馆预应力技术综合应用及监测

Prestress Technology Application and Monitoring of Laoshan Velodrome Project

老山自行车馆主场馆结构为"车辐式"环形无缝钢筋混凝土框架结构,其预应力范围广、预应力配筋形式多样、节点设置要求高等原因导致施工困难。介绍了预应力环梁、预应力柱及多种张拉端节点构造等关键施工技术,并对梁进行温度应力监测,对监测结果进行回归分析。

Rung type seamless circle reinforced concrete frame structure was used in main stadium of Laoshan Velodrome project. It is difficult to be constructed because of wide range of prestress components, multi-kinds of prestressed reinforcement and high requirements of joints. Key construction technologies of prestress circle-beam, column and tension ends joints structure were introduced in this paper. Furthermore, temperature stress of beam was monitored, and monitored results were regressive analyzed.