中国博览会会展综合体项目展厅区预应力主要采用后张有黏结预应力。展厅长度为334.2 m、宽度为308 m,属超大面积预应力施工。为保证施工质量和施工进度,重点介绍了预应力施工流程、预应力波纹管铺设、预应力筋张拉质量控制、预应力灌浆质量控制等关键施工技术。从施工的实际效果来看,预应力施工质量得到保证,满足规范要求。 China Expo Convention and Exhibition Complex Project Hall prefabricated mainly with post-tension bonded prestressed. The exhibition hall has a length of 334.2 m and a width of 308 m. It is a large area prestressed construction. In order to ensure the construction quality and construction progress, the key construction technologies of prestressed construction process, prestressed corrugated pipe laying, prestressing tendon tension quality control and prestressed grouting quality control are mainly introduced. From the actual effect of construction point of view, prestressed construction quality is guaranteed to meet the regulatory requirements.