超大跨度预应力混凝土梁施工技术

Construction Technology of Super Long-span Prestressed Concrete Beams

文章以赤峰国际会展中心工程为背景,深入探讨本工程超大跨度预应力混凝土梁施工的关键技术,详细介绍了施工过程中的材料准备、混凝土梁模板及支撑体系的设计、预应力钢筋安装、混凝土浇筑及养护、孔道灌浆等主要环节,对大跨预应力混凝土梁的施工具有较高的参考价值。

In the paper,the project of Chifeng International Convention and Exhibition Center is taken as an example, and the key construction technology of super long - span prestressed concrete beams adopted in this project is discussed in depth. Moreover,it is introduced the key links including material preparation, design of formwork and support system for concrete beams ,installation of prestressed reinforcement,pouring of concrete and maintenance, and grouting in duct, etc. in detail, which are more valuable for construction of super long- span prestressed concrete beams.