兰州中川机场二期扩建航站楼混凝土结构工程施工

Construction of concrete structure engineering of Zhongchuan airport Ⅱ expansion terminal in Lanzhou

以兰州中川机场二期扩建工程航站楼工程为例,介绍了工程概况、特点及难点,阐述了具体施工技术,重点对预应力施工、钢管柱同框架梁、自密实混凝土及施工工艺作了试配和形式鉴定,并对预应力分区二次张拉监测、寒旱地区混凝土配合比优化、高支模施工等结构施工关键技术进行了介绍,以满足施工质量要求。

Taking Zhongchuan airport Ⅱ expansion terminal engineering in Lanzhou as an example, the paper introduces engineering conditions, features and difficulties, describes specific construction technologies, mainly carries out trial fitting and style identification from aspects of prestressed construction, steel pipe column frame beam, self-compaction concrete and construction technology, and illustrates critical construction technologies of district prestress secondary monitoring, concrete mixing proportion optimization in cold and dry region, and high-formwork system construction, in order to meet engineering construction quality demands.